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<!DOCTYPE html> <html lang="en" dir="ltr"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-P63WKM1TM1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-P63WKM1TM1'); </script>  <script type="text/javascript" > (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)}; m[i].l=1*new Date(); for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }} k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)}) (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym"); ym(55165297, "init", { clickmap:false, trackLinks:true, accurateTrackBounce:true, webvisor:false }); </script> <noscript><div><img src="https://mc.yandex.ru/watch/55165297" style="position:absolute; left:-9999px;" alt="" /></div></noscript>    <title>Search results for: Aleksandr S. Demin</title> <meta name="description" content="Search results for: Aleksandr S. Demin"> <meta name="keywords" content="Aleksandr S. Demin"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Aleksandr S. 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Demin"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 26</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Aleksandr S. Demin</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Influence of Acceptor Dopant on the Physicochemical and Transport Properties of Textured BaCe0.5Zr0.3ln0.2O3−Δ Materials (Ln = Yb, Y, Cd, Sm, Nd)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Lyagaeva">J. Lyagaeva</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Medvedev"> D. Medvedev</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Brouzgou"> A. Brouzgou</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Demin"> A. Demin</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Tsiakaras"> P. Tsiakaras</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The investigation of highly conductive and chemically stable electrolytes for solid oxide fuel cells (SOFC) is a necessity. The aim of the present work is to study the influence of acceptor dopant on the functional properties of textured BaCe0.5Zr0.3Ln0.2O3−δ (Ln = Yb, Y, Gd, Sm, Nd) ceramics. The X-Ray diffraction analysis, scanning electron microscopy, dilatometry and 4-probe dc method of conductivity measurements were used. It was found that the mean grain size of ceramics increases (from 1.4 to 3.2 μm), thermal expansion coefficient grows (from 7.6•10–6 to 10.7•10–6 К–1), but ionic conductivity decreases (from 14 to 3 mS cm–1 at 900°С), when ionic radii of impurity acceptor increases from 0.868 Å (Yb3+) to 0.983 Å (Nd3+). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acceptor%20dopant" title="acceptor dopant">acceptor dopant</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20structure" title=" crystal structure"> crystal structure</a>, <a href="https://publications.waset.org/abstracts/search?q=proton-conducting" title=" proton-conducting"> proton-conducting</a>, <a href="https://publications.waset.org/abstracts/search?q=SOFC" title=" SOFC"> SOFC</a> </p> <a href="https://publications.waset.org/abstracts/23077/influence-of-acceptor-dopant-on-the-physicochemical-and-transport-properties-of-textured-bace05zr03ln02o3d-materials-ln-yb-y-cd-sm-nd" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23077.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">371</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Global Supply Chain Tuning: Role of National Culture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20S.%20Demin">Aleksandr S. Demin</a>, <a href="https://publications.waset.org/abstracts/search?q=Anastasiia%20V.%20Ivanova"> Anastasiia V. Ivanova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: The current economy tends to increase the influence of digital technologies and diminish the human role in management. However, it is impossible to deny that a person still leads a business with its own set of values and priorities. The article presented aims to incorporate the peculiarities of the national culture and the characteristics of the supply chain using the quantitative values of the national culture obtained by the scholars of comparative management (Hofstede, House, and others). Design/Methodology/Approach: The conducted research is based on the secondary data in the field of cross-country comparison achieved by Prof. Hofstede and received in the GLOBE project. The data mentioned are used to design different aspects of the supply chain both on the cross-functional and inter-organizational levels. The connection between a range of principles in general (roles assignment, customer service prioritization, coordination of supply chain partners) and in comparative management (acknowledgment of the national peculiarities of the country in which the company operates) is shown over economic and mathematical models, mainly linear programming models. Findings: The combination of the team management wheel concept, the business processes of the global supply chain, and the national culture characteristics let a transnational corporation to form a supply chain crew balanced in costs, functions, and personality. To elaborate on an effective customer service policy and logistics strategy in goods and services distribution in the country under review, two approaches are offered. The first approach relies exceptionally on the customer’s interest in the place of operation, while the second one takes into account the position of the transnational corporation and its previous experience in order to accord both organizational and national cultures. The effect of integration practice on the achievement of a specific supply chain goal in a specific location is advised to assess via types of correlation (positive, negative, non) and the value of national culture indices. Research Limitations: The models developed are intended to be used by transnational companies and business forms located in several nationally different areas. Some of the inputs to illustrate the application of the methods offered are simulated. That is why the numerical measurements should be used with caution. Practical Implications: The research can be of great interest for the supply chain managers who are responsible for the engineering of global supply chains in a transnational corporation and the further activities in doing business on the international area. As well, the methods, tools, and approaches suggested can be used by top managers searching for new ways of competitiveness and can be suitable for all staff members who are keen on the national culture traits topic. Originality/Value: The elaborated methods of decision-making with regard to the national environment suggest the mathematical and economic base to find a comprehensive solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=logistics%20integration" title="logistics integration">logistics integration</a>, <a href="https://publications.waset.org/abstracts/search?q=logistics%20services" title=" logistics services"> logistics services</a>, <a href="https://publications.waset.org/abstracts/search?q=multinational%20corporation" title=" multinational corporation"> multinational corporation</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20culture" title=" national culture"> national culture</a>, <a href="https://publications.waset.org/abstracts/search?q=team%20management" title=" team management"> team management</a>, <a href="https://publications.waset.org/abstracts/search?q=service%20policy" title=" service policy"> service policy</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20chain%20management" title=" supply chain management"> supply chain management</a> </p> <a href="https://publications.waset.org/abstracts/113267/global-supply-chain-tuning-role-of-national-culture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113267.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">106</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Decoding the Structure of Multi-Agent System Communication: A Comparative Analysis of Protocols and Paradigms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gulshad%20Azatova">Gulshad Azatova</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Kapitonov"> Aleksandr Kapitonov</a>, <a href="https://publications.waset.org/abstracts/search?q=Natig%20Aminov"> Natig Aminov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Multiagent systems have gained significant attention in various fields, such as robotics, autonomous vehicles, and distributed computing, where multiple agents cooperate and communicate to achieve complex tasks. Efficient communication among agents is a crucial aspect of these systems, as it directly impacts their overall performance and scalability. This scholarly work provides an exploration of essential communication elements and conducts a comparative assessment of diverse protocols utilized in multiagent systems. The emphasis lies in scrutinizing the strengths, weaknesses, and applicability of these protocols across various scenarios. The research also sheds light on emerging trends within communication protocols for multiagent systems, including the incorporation of machine learning methods and the adoption of blockchain-based solutions to ensure secure communication. These trends provide valuable insights into the evolving landscape of multiagent systems and their communication protocols. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=communication" title="communication">communication</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-agent%20systems" title=" multi-agent systems"> multi-agent systems</a>, <a href="https://publications.waset.org/abstracts/search?q=protocols" title=" protocols"> protocols</a>, <a href="https://publications.waset.org/abstracts/search?q=consensus" title=" consensus"> consensus</a> </p> <a href="https://publications.waset.org/abstracts/178909/decoding-the-structure-of-multi-agent-system-communication-a-comparative-analysis-of-protocols-and-paradigms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178909.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Developing Heat-Power Efficiency Criteria for Characterization of Technosphere Structural Elements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Victoria%20Y.%20Garnova">Victoria Y. Garnova</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20G.%20Merzlikin"> Vladimir G. Merzlikin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20V.%20Khudyakov"> Sergey V. Khudyakov</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20A.%20Gajour"> Aleksandr A. Gajour</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrei%20P.%20Garnov"> Andrei P. Garnov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper refers to the analysis of the characteristics of industrial and lifestyle facilities heat- energy objects as a part of the thermal envelope of Earth's surface for inclusion in any database of economic forecasting. The idealized model of the Earth's surface is discussed. This model gives the opportunity to obtain the energy equivalent for each element of terrain and world ocean. Energy efficiency criterion of comfortable human existence is introduced. Dynamics of changes of this criterion offers the possibility to simulate the possible technogenic catastrophes with a spontaneous industrial development of the certain Earth areas. Calculated model with the confirmed forecast of the Gulf Stream freezing in the Polar Regions in 2011 due to the heat-energy balance disturbance for the oceanic subsurface oil polluted layer is given. Two opposing trends of human development under the limited and unlimited amount of heat-energy resources are analyzed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Earth%27s%20surface" title="Earth's surface">Earth's surface</a>, <a href="https://publications.waset.org/abstracts/search?q=heat-energy%20consumption" title=" heat-energy consumption"> heat-energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20criteria" title=" energy criteria"> energy criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=technogenic%20catastrophes" title=" technogenic catastrophes"> technogenic catastrophes</a> </p> <a href="https://publications.waset.org/abstracts/36030/developing-heat-power-efficiency-criteria-for-characterization-of-technosphere-structural-elements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36030.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">323</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> The System of Uniform Criteria for the Characterization and Evaluation of Elements of Economic Structure: The Territory, Infrastructure, Processes, Technological Chains, the End Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20A.%20Gajour">Aleksandr A. Gajour</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20G.%20Merzlikin"> Vladimir G. Merzlikin</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20I.%20Veselov"> Vladimir I. Veselov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper refers to the analysis of the characteristics of industrial and lifestyle facilities heat- energy objects as a part of the thermal envelope of Earth's surface for inclusion in any database of economic forecasting. The idealized model of the Earth's surface is discussed. This model gives the opportunity to obtain the energy equivalent for each element of terrain and world ocean. Energy efficiency criterion of comfortable human existence is introduced. Dynamics of changes of this criterion offers the possibility to simulate the possible technogenic catastrophes with the spontaneous industrial development of the certain Earth areas. Calculated model with the confirmed forecast of the Gulf Stream freezing in the polar regions in 2011 due to the heat-energy balance disturbance for the oceanic subsurface oil polluted layer is given. Two opposing trends of human development under limited and unlimited amount of heat-energy resources are analyzed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Earth%27s%20surface" title="Earth's surface">Earth's surface</a>, <a href="https://publications.waset.org/abstracts/search?q=heat-energy%20consumption" title=" heat-energy consumption"> heat-energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20criteria" title=" energy criteria"> energy criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=technogenic%20catastrophes" title=" technogenic catastrophes"> technogenic catastrophes</a> </p> <a href="https://publications.waset.org/abstracts/13411/the-system-of-uniform-criteria-for-the-characterization-and-evaluation-of-elements-of-economic-structure-the-territory-infrastructure-processes-technological-chains-the-end-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13411.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">402</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Investigation of the Properties of Biochar Obtained by Dry and Wet Torrefaction in a Fixed and in a Fluidized Bed</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natalia%20Muratova">Natalia Muratova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20Klimov"> Dmitry Klimov</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafail%20Isemin"> Rafail Isemin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20Kuzmin"> Sergey Kuzmin</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20%20Mikhalev"> Aleksandr Mikhalev</a>, <a href="https://publications.waset.org/abstracts/search?q=Oleg%20%20Milovanov"> Oleg Milovanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We investigated the processing of poultry litter into biochar using dry torrefaction methods (DT) in a fixed and fluidized bed of quartz sand blown with nitrogen, as well as wet torrefaction (WT) in a fluidized bed in a medium of water steam at a temperature of 300 °C. Torrefaction technology affects the duration of the heat treatment process and the characteristics of the biochar: the process of separating CO₂, CO, H₂ and CH₄ from a portion of fresh poultry litter during torrefaction in a fixed bed is completed after 2400 seconds, but in a fluidized bed — after 480 seconds. During WT in a fluidized bed of quartz sand, this process ends in 840 seconds after loading a portion of fresh litter, but in a fluidized bed of litter particles previously subjected to torrefaction, the process ends in 350 - 450 seconds. In terms of the ratio between (H/C) and (O/C), the litter obtained after DT and WT treatment corresponds to lignite. WT in a fluidized bed allows one to obtain biochar, in which the specific pore area is two times larger than the specific pore area of biochar obtained after DT in a fluidized bed. Biochar, obtained as a result of the poultry litter treatment in a fluidized bed using DT or WT method, is recommended to be used not only as a biofuel but also as an adsorbent or the soil fertilizer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biochar" title="biochar">biochar</a>, <a href="https://publications.waset.org/abstracts/search?q=poultry%20litter" title=" poultry litter"> poultry litter</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20and%20wet%20torrefaction" title=" dry and wet torrefaction"> dry and wet torrefaction</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed%20bed" title=" fixed bed"> fixed bed</a>, <a href="https://publications.waset.org/abstracts/search?q=fluidized%20bed" title=" fluidized bed"> fluidized bed</a> </p> <a href="https://publications.waset.org/abstracts/114502/investigation-of-the-properties-of-biochar-obtained-by-dry-and-wet-torrefaction-in-a-fixed-and-in-a-fluidized-bed" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Increasing the Forecasting Fidelity of Current Collection System Operating Capability by Means of Contact Pressure Simulation Modelling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anton%20Golubkov">Anton Golubkov</a>, <a href="https://publications.waset.org/abstracts/search?q=Gleb%20Ermachkov"> Gleb Ermachkov</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Smerdin"> Aleksandr Smerdin</a>, <a href="https://publications.waset.org/abstracts/search?q=Oleg%20Sidorov"> Oleg Sidorov</a>, <a href="https://publications.waset.org/abstracts/search?q=Victor%20Philippov"> Victor Philippov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Current collection quality is one of the limiting factors when increasing trains movement speed in the rail sector. With the movement speed growth, the impact forces on the current collector from the rolling stock and the aerodynamic influence increase, which leads to the spread in the contact pressure values, separation of the current collector head from the contact wire, contact arcing and excessive wear of the contact elements. The upcoming trend in resolving this issue is the use of the automatic control systems providing stabilization of the contact pressure value. The present paper considers the features of the contemporary automatic control systems of the current collector’s pressure; their major disadvantages have been stated. A scheme of current collector pressure automatic control has been proposed, distinguished by a proactive influence on undesirable effects. A mathematical model of contact strips wearing has been presented, obtained in accordance with the provisions of the central composition rotatable design program. The analysis of the obtained dependencies has been carried out. The procedures for determining the optimal current collector pressure on the contact wire and the pressure control principle in the pneumatic drive have been described. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=contact%20strip" title="contact strip">contact strip</a>, <a href="https://publications.waset.org/abstracts/search?q=current%20collector" title=" current collector"> current collector</a>, <a href="https://publications.waset.org/abstracts/search?q=high-speed%20running" title=" high-speed running"> high-speed running</a>, <a href="https://publications.waset.org/abstracts/search?q=program%20control" title=" program control"> program control</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a> </p> <a href="https://publications.waset.org/abstracts/128597/increasing-the-forecasting-fidelity-of-current-collection-system-operating-capability-by-means-of-contact-pressure-simulation-modelling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128597.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Supercomputer Simulation of Magnetic Multilayers Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vitalii%20Yu.%20Kapitan">Vitalii Yu. Kapitan</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20V.%20Perzhu"> Aleksandr V. Perzhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Konstantin%20V.%20Nefedev"> Konstantin V. Nefedev</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The necessity of studying magnetic multilayer structures is explained by the prospects of their practical application as a technological base for creating new storages medium. Magnetic multilayer films have many unique features that contribute to increasing the density of information recording and the speed of storage devices. Multilayer structures are structures of alternating magnetic and nonmagnetic layers. In frame of the classical Heisenberg model, lattice spin systems with direct short- and long-range exchange interactions were investigated by Monte Carlo methods. The thermodynamic characteristics of multilayer structures, such as the temperature behavior of magnetization, energy, and heat capacity, were investigated. The processes of magnetization reversal of multilayer structures in external magnetic fields were investigated. The developed software is based on the new, promising programming language Rust. Rust is a new experimental programming language developed by Mozilla. The language is positioned as an alternative to C and C++. For the Monte Carlo simulation, the Metropolis algorithm and its parallel implementation using MPI and the Wang-Landau algorithm were used. We are planning to study of magnetic multilayer films with asymmetric Dzyaloshinskii–Moriya (DM) interaction, interfacing effects and skyrmions textures. This work was supported by the state task of the Ministry of Education and Science of the Russia # 3.7383.2017/8.9 <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=The%20Monte%20Carlo%20methods" title="The Monte Carlo methods">The Monte Carlo methods</a>, <a href="https://publications.waset.org/abstracts/search?q=Heisenberg%20model" title=" Heisenberg model"> Heisenberg model</a>, <a href="https://publications.waset.org/abstracts/search?q=multilayer%20structures" title=" multilayer structures"> multilayer structures</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20skyrmion" title=" magnetic skyrmion"> magnetic skyrmion</a> </p> <a href="https://publications.waset.org/abstracts/80987/supercomputer-simulation-of-magnetic-multilayers-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80987.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">166</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Relationship Salt Sensitivity and с825т Polymorphism of gnb3 Gene in Patients with Essential Hypertension </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Nagay">Aleksandr Nagay</a>, <a href="https://publications.waset.org/abstracts/search?q=Gulnoz%20Khamidullayeva"> Gulnoz Khamidullayeva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It is known that an unbalanced intake of salt (NaCI), lifestyle and genetic predisposition to pathology is a key component of the risk and the development of essential hypertension (EH). Purpose: To study the relationship between salt-sensitivity and blood pressure (BP) on systolic (SBP) and diastolic (DBP) blood pressure, depending on the C825T polymorphism of GNB3 in individuals of Uzbek nationality with EH. Method: studied 148 healthy and 148 patients with EH with I-II degree (WHO/ISH, 2003) with disease duration 6,5±1,3 years. Investigation of the gene GNB3 was produced by PCR-RFLP method. Determination of salt-sensitivity was performed by the method of R. Henkin. Results: For a comparative analysis of BP, the groups with carriage of CТ and TT genotypes were combined. The analysis showed that carriers of CC genotype and low salt-sensitivity were determined by higher levels of SBP compared with carriers of CT and TT genotypes, and low salt-sensitivity of SBP: 166,2±4,3 against 158,2±9,1 mm Hg (p=0,000). A similar analysis on the values of DBP also showed significantly higher values of blood pressure in carriers of CC genotype DBP: 105,8±10,6 vs. 100,5±7,2 mm Hg, respectively (p=0,001). The average values of SBP and DBP in groups with carriers of CC genotype at medium or high salt-sensitivity in comparison with carriers of CT or TT genotype did not differ statistically SBP: 165,0±0,1 vs. 160,0±8,6 mm Hg (p=0,275) and DBP: 100,1±0,1 vs. 101,6±7,6 mm Hg (p=0,687), respectively. Conclusion: It is revealed that in patients with EH CC genotype of the gene GNB3 given salt-sensitivity has a negative effect on blood pressure profile. Since patients with EH with the CC genotype of GNB3 gene with low-salt taste sensitivity is determined by a higher level of blood pressure, both on SBP and DBP. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=salt%20sensitivity" title="salt sensitivity">salt sensitivity</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20hypertension%20EH" title=" essential hypertension EH"> essential hypertension EH</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20pressure%20BP" title=" blood pressure BP"> blood pressure BP</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20predisposition" title=" genetic predisposition"> genetic predisposition</a> </p> <a href="https://publications.waset.org/abstracts/59953/relationship-salt-sensitivity-and-s825t-polymorphism-of-gnb3-gene-in-patients-with-essential-hypertension" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59953.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">276</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Geometric Morphometric Analysis of Allometric Variation in the Hand Morphology of Adults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20S.%20Ermolenko">Aleksandr S. Ermolenko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Allometry is an important factor of morphological integration, contributing to the organization of the phenotype and its variability. The allometric change in the shape of the hand is particularly important in primate evolution, as the hand has important taxonomic features. Some of these features are known to parts with the shape, especially the ratio of the lengths of the index and ring fingers (2d: 4d ratio). The hand is a fairly well-studied system in the context of the evolutionary development of complex morphological structures since it consists of various departments (basipodium, metapodium, acropodium) that form a single structure –autopodium. In the present study, we examined the allometric variability of acropodium. We tested the null hypothesis that there would be no difference in allometric variation between the two components. Geometric morphometry based on a procrustation of 16 two-dimensional (2D) landmarks was analyzed using multivariate shape-by-size regressions in samples from 100 people (50 men and 50 women). The results obtained show that men have significantly greater allometric variability for the ring finger (variability in the transverse axis prevails), while women have significantly greater allometric variability for the index finger (variability in the longitudinal axis prevails). The influence of the middle finger on the shape of the hand is typical for both men and women. The influence of the little finger on the shape of the hand, regardless of gender, was not revealed. The results of this study support the hypothesis that allometry contributes to the organization of variation in the human hand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20hand" title="human hand">human hand</a>, <a href="https://publications.waset.org/abstracts/search?q=size%20and%20shape" title=" size and shape"> size and shape</a>, <a href="https://publications.waset.org/abstracts/search?q=2d%3A4d%20ratio" title=" 2d:4d ratio"> 2d:4d ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=geometric%20morphometry" title=" geometric morphometry"> geometric morphometry</a> </p> <a href="https://publications.waset.org/abstracts/137304/geometric-morphometric-analysis-of-allometric-variation-in-the-hand-morphology-of-adults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137304.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">159</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Thermal Method for Testing Small Chemisorbent Samples on the Base of Potassium Superoxide</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pavel%20V.%20Balabanov">Pavel V. Balabanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Daria%20A.%20Liubimova"> Daria A. Liubimova</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20P.%20Savenkov"> Aleksandr P. Savenkov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increase of technogenic and natural accidents, accompanied by air pollution, for example, by combustion products, leads to the necessity of respiratory protection. This work is devoted to the development of a calorimetric method and a device which allow investigating quickly the kinetics of carbon dioxide sorption by chemo-sorbents on the base of potassium superoxide in order to assess the protective properties of respiratory protective closed-circuit apparatus. The features of the traditional approach for determining the sorption properties in a thin layer of chemo-sorbent are described, as well as methods and devices, which can be used for the sorption kinetics study. The authors of the paper developed an approach (as opposed to the traditional approach) based on the power measurement of internal heat sources in the chemo-sorbent layer. The emergence of the heat sources is a result of the exothermic reaction of carbon dioxide sorption. This approach eliminates the necessity of chemical analysis of samples and can significantly reduce the time and material expenses during chemo-sorbents testing. The error of determining the volume fraction of adsorbed carbon dioxide by the developed method does not exceed 12%. Taking into account the efficiency of the method, we consider that it is a good alternative to traditional methods of chemical analysis under the assessment of the protection sorbents quality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20dioxide%20chemisorption" title="carbon dioxide chemisorption">carbon dioxide chemisorption</a>, <a href="https://publications.waset.org/abstracts/search?q=exothermic%20reaction" title=" exothermic reaction"> exothermic reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=internal%20heat%20sources" title=" internal heat sources"> internal heat sources</a>, <a href="https://publications.waset.org/abstracts/search?q=respiratory%20protective%20apparatus" title=" respiratory protective apparatus"> respiratory protective apparatus</a> </p> <a href="https://publications.waset.org/abstracts/38256/thermal-method-for-testing-small-chemisorbent-samples-on-the-base-of-potassium-superoxide" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38256.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">408</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Mitigating the Aggregation of Human Islet Amyloid Polypeptide with Nanomaterials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ava%20Faridi">Ava Faridi</a>, <a href="https://publications.waset.org/abstracts/search?q=Pouya%20Faridi"> Pouya Faridi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Kakinen"> Aleksandr Kakinen</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Javed"> Ibrahim Javed</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20P.%20Davis"> Thomas P. Davis</a>, <a href="https://publications.waset.org/abstracts/search?q=Pu%20Chun%20Ke"> Pu Chun Ke</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human islet amyloid polypeptide (IAPP) is a hormone associated with glycemic control and type 2 diabetes. Biophysically, the chirality of IAPP fibrils has been little explored with respect to the aggregation and toxicity of the peptide. Biochemically, it remains unclear as for how protein expression in pancreatic beta cells may be altered by cell exposure to the peptide, and how such changes may be mitigated by nanoparticle inhibitors for IAPP aggregation. In this study, we first demonstrated the elimination of the IAPP nucleation phase and shortening of its elongation phase by silica nanoribbons. This accelerated IAPP fibrillization translated to reduced toxicity, especially for the right-handed silica nanoribbons, as revealed by cell viability, helium ion microscopy, as well as zebrafish embryo survival, developmental and behavioral assays. We then examined the proteomes of βTC6 pancreatic beta cells exposed to the three main aggregation states of monomeric, oligomeric and amyloid fibrillar IAPP, and compared that with cellular protein expression modulated by graphene quantum dots (GQDs). A total of 29 proteins were significantly regulated by different forms of IAPP, and the majority of these proteins were nucleotide-binding proteins. A regulatory capacity of GQDs against aberrant protein expression was confirmed. These studies have demonstrated the great potential of employing nanomaterials targeting the mesoscopic enantioselectivity and protein expression dysregulation in pancreatic beta cells. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=graphene%20quantum%20dots" title="graphene quantum dots">graphene quantum dots</a>, <a href="https://publications.waset.org/abstracts/search?q=IAPP" title=" IAPP"> IAPP</a>, <a href="https://publications.waset.org/abstracts/search?q=silica%20nanoribbons" title=" silica nanoribbons"> silica nanoribbons</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20expression" title=" protein expression"> protein expression</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity" title=" toxicity"> toxicity</a> </p> <a href="https://publications.waset.org/abstracts/107515/mitigating-the-aggregation-of-human-islet-amyloid-polypeptide-with-nanomaterials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107515.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Investigations of Heavy Metals Pollution in Sediments of Small Urban Lakes in Karelia Republic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Medvedev">Aleksandr Medvedev</a>, <a href="https://publications.waset.org/abstracts/search?q=Zakhar%20Slukovsii"> Zakhar Slukovsii</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Waterbodies, which are located either within urban areas or nearby towns, permanently undergo anthropogenic load. The extent of the load can be determined via investigations of chemical composition of both water and sediments. Lakes, as a rule, are considered as a landscape depressions, hence they are capable of natural material accumulating, which has been delivered from the catchment area through rivers as well as temporary flows. As a result, lacustrine sediments (especially closed-basin lakes sediments) are considered as perfect archives, which are served for reconstructing past sedimentation process, assessment of the modern contamination level, and prognostication of possible ways of changing in the future. The purposes of the survey are to define a heavy metals content in lake sediments cores, which were retrieved from four urban lakes located in the southern part of Karelia Republic, and to ascertain the main sources of heavy metals input to these waterbodies. It is really crucial to be aware of heavy metals content in environment, because chemical composition of a landscape may have a significant effect on living organisms and people’s health. Sediment columns were sampled in a field with 2-cm intervals by a gravitational corer called «Limnos». The sediment samples were analyzed by inductively coupled plasma spectrometry (ICP MS) for 8 chemical elements (Pb, Cd, Zn, Cr, Ni, Cu, Mn, V). The highest concentrations of trace elements were established in the upper and middle layers of the cores. It has also been ascertained that the extent of contamination mostly depends on a remoteness of a lake from various pollution sources and features of the sources. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bottom%20sediments" title="bottom sediments">bottom sediments</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20pollution" title=" environmental pollution"> environmental pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=lakes" title=" lakes"> lakes</a> </p> <a href="https://publications.waset.org/abstracts/84105/investigations-of-heavy-metals-pollution-in-sediments-of-small-urban-lakes-in-karelia-republic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84105.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Myomectomy and Blood Loss: A Quality Improvement Project</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ena%20Arora">Ena Arora</a>, <a href="https://publications.waset.org/abstracts/search?q=Rong%20Fan"> Rong Fan</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Fuks"> Aleksandr Fuks</a>, <a href="https://publications.waset.org/abstracts/search?q=Kolawole%20Felix%20Akinnawonu"> Kolawole Felix Akinnawonu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Leiomyomas are benign tumors that are derived from the overgrowth of uterine smooth muscle cells. Women with symptomatic leiomyomas who desire future fertility, myomectomy should be the standard surgical treatment. Perioperative hemorrhage is a common complication in myomectomy. We performed the study to investigate blood transfusion rate in abdominal myomectomies, risk factors influencing blood loss and modalities to improve perioperative blood loss. Methods: Retrospective chart review was done for patients who underwent myomectomy from 2016 to 2022 at Queens hospital center, New York. We looked at preoperative patient demographics, clinical characteristics, intraoperative variables, and postoperative outcomes. Mann-Whitney U test were used for parametric and non-parametric continuous variable comparisons, respectively. Results: A total of 159 myomectomies were performed between 2016 and 2022, including 1 laparoscopic, 65 vaginal and 93 abdominal. 44 patients received blood transfusion during or within 72 hours of abdominal myomectomy. The blood transfusion rate was 47.3%. Blood transfusion rate was found to be twice higher than the average documented rate in literature which is 20%. Risk factors identified were black race, preoperative hematocrit<30%, preoperative blood transfusion within 72 hours, large fibroid burden, prolonged surgical time, and abdominal approach. Conclusion: Preoperative optimization with iron supplements or GnRH agonists is important for patients undergoing myomectomy. Interventions to decrease intra operative blood loss should include cell saver, tourniquet, vasopressin, misoprostol, tranexamic acid and gelatin-thrombin matrix hemostatic sealant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=myomectomy" title="myomectomy">myomectomy</a>, <a href="https://publications.waset.org/abstracts/search?q=perioperative%20blood%20loss" title=" perioperative blood loss"> perioperative blood loss</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20saver" title=" cell saver"> cell saver</a>, <a href="https://publications.waset.org/abstracts/search?q=tranexamic%20acid" title=" tranexamic acid"> tranexamic acid</a> </p> <a href="https://publications.waset.org/abstracts/162776/myomectomy-and-blood-loss-a-quality-improvement-project" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162776.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Waste Utilization by Combustion in the Composition of Gel Fuels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dmitrii%20Glushkov">Dmitrii Glushkov</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20G.%20Nigay"> Aleksandr G. Nigay</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20S.%20Yashutina"> Olga S. Yashutina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, due to the intensive development of the Arctic and Antarctic areas, the actual task is to develop technology for the effective utilization of solid and liquid combustible wastes in an environment with low temperatures. Firstly, such technology will help to prevent the dumping of waste into the World Ocean and reduce the risks of causing environmental damage to the Far North areas. Secondly, promising actions will help to prepare fuel compositions from the waste in the places of their production. Such kind of fuels can be used as energy resources. It will reduce waste utilization costs when transporting them to the mainland. In the present study, we suggest a solution to the problem of waste utilization by the preparation of gel fuels based on solid and liquid combustible components with the addition of the thickener. Such kind of fuels is characterized by ease of preparation, storage, transportation and use (as energy resources). The main regularities and characteristics of physical and chemical processes are established with varying parameters of gel fuels and heating sources in wide ranges. The obtained results let us conclude about the prospects of gel fuels practical application for combustible wastes utilization. Appropriate technology will be characterized by positive environmental, operational and economic effects. The composition of the gel fuels can vary in a wide range. The fuels preparation based on one type of a combustible liquid or a several liquids mixture with the finely dispersed components addition makes it possible to obtain compositions with predicted rheological, energy or environmental characteristics. Besides, gel fuels have a lower level of the fire hazard compared to common solid and liquid fuels. This makes them convenient for storage and transportation. In such conditions, it is not necessary to transport combustible wastes from the territory of the Arctic and the Antarctic to the mainland for processing, which is now quite an expensive procedure. The research was funded by the Russian Science Foundation (project No. 18-13-00031). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=combustible%20liquid%20waste" title="combustible liquid waste">combustible liquid waste</a>, <a href="https://publications.waset.org/abstracts/search?q=gel%20fuel" title=" gel fuel"> gel fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=ignition%20and%20combustion" title=" ignition and combustion"> ignition and combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=utilization" title=" utilization"> utilization</a> </p> <a href="https://publications.waset.org/abstracts/95206/waste-utilization-by-combustion-in-the-composition-of-gel-fuels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95206.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">120</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> Investigation of the Working Processes in Thermocompressor Operating on Cryogenic Working Fluid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Evgeny%20V.%20Blagin">Evgeny V. Blagin</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20I.%20Dovgjallo"> Aleksandr I. Dovgjallo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20A.%20Uglanov"> Dmitry A. Uglanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article deals with research of the working process in the thermocompressor which operates on cryogenic working fluid. Thermocompressor is device suited for the conversation of heat energy directly to the potential energy of pressure. Suggested thermocompressor is suited for operation during liquid natural gas (LNG) re-gasification and is placed after evaporator. Such application of thermocompressor allows using of the LNG cold energy for rising of working fluid pressure, which then can be used for electricity generation or another purpose. Thermocompressor consists of two chambers divided by the regenerative heat exchanger. Calculation algorithm for unsteady calculation of thermocompressor working process was suggested. The results of this investigation are to change of thermocompressor’s chambers temperature and pressure during the working cycle. These distributions help to find out the parameters, which significantly influence thermocompressor efficiency. These parameters include regenerative heat exchanger coefficient of the performance (COP) dead volume of the chambers, working frequency of the thermocompressor etc. Exergy analysis was performed to estimate thermocompressor efficiency. Cryogenic thermocompressor operated on nitrogen working fluid was chosen as a prototype. Calculation of the temperature and pressure change was performed with taking into account heat fluxes through regenerator and thermocompressor walls. Temperature of the cold chamber significantly differs from the results of steady calculation, which is caused by friction of the working fluid in regenerator and heat fluxes from the hot chamber. The rise of the cold chamber temperature leads to decreasing of thermocompressor delivery volume. Temperature of hot chamber differs negligibly because losses due to heat fluxes to a cold chamber are compensated by the friction of the working fluid in the regenerator. Optimal working frequency was selected. Main results of the investigation: -theoretical confirmation of thermocompressor operation capability on the cryogenic working fluid; -optimal working frequency was found; -value of the cold chamber temperature differs from the starting value much more than the temperature of the hot chamber; -main parameters which influence thermocompressor performance are regenerative heat exchanger COP and heat fluxes through regenerator and thermocompressor walls. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold%20energy" title="cold energy">cold energy</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20natural%20gas" title=" liquid natural gas"> liquid natural gas</a>, <a href="https://publications.waset.org/abstracts/search?q=thermocompressor" title=" thermocompressor"> thermocompressor</a>, <a href="https://publications.waset.org/abstracts/search?q=regenerative%20heat%20exchanger" title=" regenerative heat exchanger"> regenerative heat exchanger</a> </p> <a href="https://publications.waset.org/abstracts/38355/investigation-of-the-working-processes-in-thermocompressor-operating-on-cryogenic-working-fluid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38355.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">582</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Grain Structure Evolution during Friction-Stir Welding of 6061-T6 Aluminum Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Kalinenko">Aleksandr Kalinenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20Vysotskiy"> Igor Vysotskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20Malopheyev"> Sergey Malopheyev</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20Mironov"> Sergey Mironov</a>, <a href="https://publications.waset.org/abstracts/search?q=Rustam%20Kaibyshev"> Rustam Kaibyshev</a> </p> <p class="card-text"><strong>Abstract:</strong></p> From a thermo-mechanical standpoint, friction-stir welding (FSW) represents a unique combination of very large strains, high temperature and relatively high strain rate. The material behavior under such extreme deformation conditions is not studied well and thus, the microstructural examinations of the friction-stir welded materials represent an essential academic interest. Moreover, a clear understanding of the microstructural mechanisms operating during FSW should improve our understanding of the microstructure-properties relationship in the FSWed materials and thus enables us to optimize their service characteristics. Despite extensive research in this field, the microstructural behavior of some important structural materials remains not completely clear. In order to contribute to this important work, the present study was undertaken to examine the grain structure evolution during the FSW of 6061-T6 aluminum alloy. To provide an in-depth insight into this process, the electron backscatter diffraction (EBSD) technique was employed for this purpose. Microstructural observations were conducted by using an FEI Quanta 450 Nova field-emission-gun scanning electron microscope equipped with TSL OIMTM software. A suitable surface finish for EBSD was obtained by electro-polishing in a solution of 25% nitric acid in methanol. A 15° criterion was employed to differentiate low-angle boundaries (LABs) from high-angle boundaries (HABs). In the entire range of the studied FSW regimes, the grain structure evolved in the stir zone was found to be dominated by nearly-equiaxed grains with a relatively high fraction of low-angle boundaries and the moderate-strength B/-B {112}<110> simple-shear texture. In all cases, the grain-structure development was found to be dictated by an extensive formation of deformation-induced boundaries, their gradual transformation to the high-angle grain boundaries. Accordingly, the grain subdivision was concluded to the key microstructural mechanism. Remarkably, a gradual suppression of this mechanism has been observed at relatively high welding temperatures. This surprising result has been attributed to the reduction of dislocation density due to the annihilation phenomena. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electron%20backscatter%20diffraction" title="electron backscatter diffraction">electron backscatter diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=friction-stir%20welding" title=" friction-stir welding"> friction-stir welding</a>, <a href="https://publications.waset.org/abstracts/search?q=heat-treatable%20aluminum%20alloys" title=" heat-treatable aluminum alloys"> heat-treatable aluminum alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a> </p> <a href="https://publications.waset.org/abstracts/130602/grain-structure-evolution-during-friction-stir-welding-of-6061-t6-aluminum-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130602.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">237</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Application of Neutron Stimulated Gamma Spectroscopy for Soil Elemental Analysis and Mapping</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Kavetskiy">Aleksandr Kavetskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Galina%20Yakubova"> Galina Yakubova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Sargsyan"> Nikolay Sargsyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20A.%20Prior"> Stephen A. Prior</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Allen%20Torbert"> H. Allen Torbert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Determining soil elemental content and distribution (mapping) within a field are key features of modern agricultural practice. While traditional chemical analysis is a time consuming and labor-intensive multi-step process (e.g., sample collections, transport to laboratory, physical preparations, and chemical analysis), neutron-gamma soil analysis can be performed in-situ. This analysis is based on the registration of gamma rays issued from nuclei upon interaction with neutrons. Soil elements such as Si, C, Fe, O, Al, K, and H (moisture) can be assessed with this method. Data received from analysis can be directly used for creating soil elemental distribution maps (based on ArcGIS software) suitable for agricultural purposes. The neutron-gamma analysis system developed for field application consisted of an MP320 Neutron Generator (Thermo Fisher Scientific, Inc.), 3 sodium iodide gamma detectors (SCIONIX, Inc.) with a total volume of 7 liters, 'split electronics' (XIA, LLC), a power system, and an operational computer. Paired with GPS, this system can be used in the scanning mode to acquire gamma spectra while traversing a field. Using acquired spectra, soil elemental content can be calculated. These data can be combined with geographical coordinates in a geographical information system (i.e., ArcGIS) to produce elemental distribution maps suitable for agricultural purposes. Special software has been developed that will acquire gamma spectra, process and sort data, calculate soil elemental content, and combine these data with measured geographic coordinates to create soil elemental distribution maps. For example, 5.5 hours was needed to acquire necessary data for creating a carbon distribution map of an 8.5 ha field. This paper will briefly describe the physics behind the neutron gamma analysis method, physical construction the measurement system, and main characteristics and modes of work when conducting field surveys. Soil elemental distribution maps resulting from field surveys will be presented. and discussed. Comparison of these maps with maps created on the bases of chemical analysis and soil moisture measurements determined by soil electrical conductivity was similar. The maps created by neutron-gamma analysis were reproducible, as well. Based on these facts, it can be asserted that neutron stimulated soil gamma spectroscopy paired with GPS system is fully applicable for soil elemental agricultural field mapping. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ArcGIS%20mapping" title="ArcGIS mapping">ArcGIS mapping</a>, <a href="https://publications.waset.org/abstracts/search?q=neutron%20gamma%20analysis" title=" neutron gamma analysis"> neutron gamma analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20elemental%20content" title=" soil elemental content"> soil elemental content</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20gamma%20spectroscopy" title=" soil gamma spectroscopy"> soil gamma spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/110999/application-of-neutron-stimulated-gamma-spectroscopy-for-soil-elemental-analysis-and-mapping" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110999.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Experimental Studies of the Reverse Load-Unloading Effect on the Mechanical, Linear and Nonlinear Elastic Properties of n-AMg6/C60 Nanocomposite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20I.%20Korobov">Aleksandr I. Korobov</a>, <a href="https://publications.waset.org/abstracts/search?q=Natalia%20V.%20Shirgina"> Natalia V. Shirgina</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksey%20I.%20Kokshaiskiy"> Aleksey I. Kokshaiskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Vyacheslav%20M.%20Prokhorov"> Vyacheslav M. Prokhorov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents the results of an experimental study of the effect of reverse mechanical load-unloading on the mechanical, linear, and nonlinear elastic properties of n-AMg6/C60 nanocomposite. Samples for experimental studies of n-AMg6/C60 nanocomposite were obtained by grinding AMg6 polycrystalline alloy in a planetary mill with 0.3 wt % of C60 fullerite in an argon atmosphere. The resulting product consisted of 200-500-micron agglomerates of nanoparticles. X-ray coherent scattering (CSL) method has shown that the average nanoparticle size is 40-60 nm. The resulting preform was extruded at high temperature. Modifications of C60 fullerite interferes the process of recrystallization at grain boundaries. In the samples of n-AMg6/C60 nanocomposite, the load curve is measured: the dependence of the mechanical stress σ on the strain of the sample ε under its multi-cycle load-unloading process till its destruction. The hysteresis dependence σ = σ(ε) was observed, and insignificant residual strain ε < 0.005 were recorded. At σ≈500 MPa and ε≈0.025, the sample was destroyed. The destruction of the sample was fragile. Microhardness was measured before and after destruction of the sample. It was found that the loading-unloading process led to an increase in its microhardness. The effect of the reversible mechanical stress on the linear and nonlinear elastic properties of the n-AMg6/C60 nanocomposite was studied experimentally by ultrasonic method on the automated complex Ritec RAM-5000 SNAP SYSTEM. In the n-AMg6/C60 nanocomposite, the velocities of the longitudinal and shear bulk waves were measured with the pulse method, and all the second-order elasticity coefficients and their dependence on the magnitude of the reversible mechanical stress applied to the sample were calculated. Studies of nonlinear elastic properties of the n-AMg6/C60 nanocomposite at reversible load-unloading of the sample were carried out with the spectral method. At arbitrary values of the strain of the sample (up to its breakage), the dependence of the amplitude of the second longitudinal acoustic harmonic at a frequency of 2f = 10MHz on the amplitude of the first harmonic at a frequency f = 5MHz of the acoustic wave is measured. Based on the results of these measurements, the values of the nonlinear acoustic parameter in the n-AMg6/C60 nanocomposite sample at different mechanical stress were determined. The obtained results can be used in solid-state physics, materials science, for development of new techniques for nondestructive testing of structural materials using methods of nonlinear acoustic diagnostics. This study was supported by the Russian Science Foundation (project №14-22-00042). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title="nanocomposite">nanocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=generation%20of%20acoustic%20harmonics" title=" generation of acoustic harmonics"> generation of acoustic harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20acoustic%20parameter" title=" nonlinear acoustic parameter"> nonlinear acoustic parameter</a>, <a href="https://publications.waset.org/abstracts/search?q=hysteresis" title=" hysteresis"> hysteresis</a> </p> <a href="https://publications.waset.org/abstracts/81213/experimental-studies-of-the-reverse-load-unloading-effect-on-the-mechanical-linear-and-nonlinear-elastic-properties-of-n-amg6c60-nanocomposite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81213.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Non-Linear Transformation of Bulk Acoustic Waves at Oblique Incidence on Plane Solid Boundary</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20I.%20Korobov">Aleksandr I. Korobov</a>, <a href="https://publications.waset.org/abstracts/search?q=Natalia%20V.%20Shirgina"> Natalia V. Shirgina</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksey%20I.%20Kokshaiskiy"> Aleksey I. Kokshaiskiy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The transformation of two types of acoustic waves can occur on a flat interface between two solids at oblique incidence of longitudinal and shear bulk acoustic waves (BAW). This paper presents the results of experimental studies of the properties of reflection and propagation of longitudinal wave and generation of second and third longitudinal and shear harmonics of BAW at oblique incidence of longitudinal BAW on a flat rough boundary between two solids. The experimental sample was a rectangular isosceles pyramid made of D16 aluminum alloy with the plane parallel bases cylinder made of D16 aluminum alloy pressed to the base. The piezoelectric lithium niobate transducer with a resonance frequency of 5 MHz was secured to one face of the pyramid to generate a longitudinal wave. Longitudinal waves emitted by this transducer felt at an angle of 45° to the interface between two solids and reflected at the same angle. On the opposite face of the pyramid, and on the flat side of the cylinder was attached longitudinal transducer with resonance frequency of 10 MHz or the shear transducer with resonance frequency of 15 MHz. These transducers also effectively received signal at a frequency of 5 MHz. In the spectrum of the transmitted and reflected BAW was observed shear and longitudinal waves at a frequency of 5 MHz, as well as longitudinal harmonic at a frequency harmonic of 10 MHz and a shear harmonic at frequency of 15 MHz. The effect of reversing changing of external pressure applied to the rough interface between two solids on the value of the first and higher harmonics of the BAW at oblique incidence on the interface of the longitudinal BAW was experimentally investigated. In the spectrum of the reflected signal from the interface, there was a decrease of amplitudes of the first harmonics of the signal, and non-monotonic dependence of the second and third harmonics of shear wave with an increase of the static pressure applied to the interface. In the spectrum of the transmitted signal growth of the first longitudinal and shear harmonic amplitude and non-monotonic dependence - first increase and then decrease in the amplitude of the second and third longitudinal shear harmonic with increasing external static pressure was observed. These dependencies were hysteresis at reversing changing of external pressure. When pressure applied to the border increased, acoustic contact between the surfaces improves. This increases the energy of the transmitted elastic wave and decreases the energy of the reflected wave. The second longitudinal acoustic harmonics generation was associated with the Hertz nonlinearity on the interface of two pressed rough surfaces, the generation of the third harmonic was caused by shear hysteresis nonlinearity due to dry friction on a rough interface. This study was supported by the Russian Science Foundation (project №14-22-00042). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=generation%20of%20acoustic%20harmonics" title="generation of acoustic harmonics">generation of acoustic harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=hysteresis%20nonlinearity" title=" hysteresis nonlinearity"> hysteresis nonlinearity</a>, <a href="https://publications.waset.org/abstracts/search?q=Hertz%20nonlinearity" title=" Hertz nonlinearity"> Hertz nonlinearity</a>, <a href="https://publications.waset.org/abstracts/search?q=transformation%20of%20acoustic%20waves" title=" transformation of acoustic waves"> transformation of acoustic waves</a> </p> <a href="https://publications.waset.org/abstracts/81216/non-linear-transformation-of-bulk-acoustic-waves-at-oblique-incidence-on-plane-solid-boundary" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81216.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">378</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Influence of Structured Capillary-Porous Coatings on Cryogenic Quenching Efficiency</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Irina%20P.%20Starodubtseva">Irina P. Starodubtseva</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20N.%20Pavlenko"> Aleksandr N. Pavlenko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Quenching is a term generally accepted for the process of rapid cooling of a solid that is overheated above the thermodynamic limit of the liquid superheat. The main objective of many previous studies on quenching is to find a way to reduce the total time of the transient process. Computational experiments were performed to simulate quenching by a falling liquid nitrogen film of an extremely overheated vertical copper plate with a structured capillary-porous coating. The coating was produced by directed plasma spraying. Due to the complexities in physical pattern of quenching from chaotic processes to phase transition, the mechanism of heat transfer during quenching is still not sufficiently understood. To our best knowledge, no information exists on when and how the first stable liquid-solid contact occurs and how the local contact area begins to expand. Here we have more models and hypotheses than authentically established facts. The peculiarities of the quench front dynamics and heat transfer in the transient process are studied. The created numerical model determines the quench front velocity and the temperature fields in the heater, varying in space and time. The dynamic pattern of the running quench front obtained numerically satisfactorily correlates with the pattern observed in experiments. Capillary-porous coatings with straight and reverse orientation of crests are investigated. The results show that the cooling rate is influenced by thermal properties of the coating as well as the structure and geometry of the protrusions. The presence of capillary-porous coating significantly affects the dynamics of quenching and reduces the total quenching time more than threefold. This effect is due to the fact that the initialization of a quench front on a plate with a capillary-porous coating occurs at a temperature significantly higher than the thermodynamic limit of the liquid superheat, when a stable solid-liquid contact is thermodynamically impossible. Waves present on the liquid-vapor interface and protrusions on the complex micro-structured surface cause destabilization of the vapor film and the appearance of local liquid-solid micro-contacts even though the average integral surface temperature is much higher than the liquid superheat limit. The reliability of the results is confirmed by direct comparison with experimental data on the quench front velocity, the quench front geometry, and the surface temperature change over time. Knowledge of the quench front velocity and total time of transition process is required for solving practically important problems of nuclear reactors safety. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=capillary-porous%20coating" title="capillary-porous coating">capillary-porous coating</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=Leidenfrost%20phenomenon" title=" Leidenfrost phenomenon"> Leidenfrost phenomenon</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=quenching" title=" quenching"> quenching</a> </p> <a href="https://publications.waset.org/abstracts/110225/influence-of-structured-capillary-porous-coatings-on-cryogenic-quenching-efficiency" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110225.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">130</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Fashion Utopias: The Role of Fashion Exhibitions and Fashion Archives to Defining (and Stimulating) Possible Future Fashion Landscapes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vittorio%20Linfante">Vittorio Linfante</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Utopìa is a term that, since its first appearance in 1516, in Tommaso Moro’s work, has taken on different meanings and forms in various fields: social studies, politics, art, creativity, and design. The utopias, although of short duration and in their apparent impossibility, have been able to give a shape to the future, laying the foundations for our present and the future of the next generations. The Twentieth century was the historical period crossed by many changes, and it saw the most significant number of utopias not only social, political, and scientific but also artistic, architectural, in design, communication, and, last but not least, in fashion. Over the years, fashion has been able to interpret various utopistic impulses giving form to the most futuristic visions. From the Manifesto del Vestito by Giacomo Balla, through the functional experiments that led to the Tuta by Thayath and the Varst by Aleksandr Rodčenko and Varvara Stepanova, through the Space Age visions of Rudi Gernreich, Paco Rabanne and Pierre Cardin, and the Archizoom’s political actions and their fashion project Vestirsi è facile. Experiments that have continued to the present days through the (sometimes) excessive visions of Hussein Chalayan, Alexander McQueen, and Gareth Pugh or those that are more anchored to the market (but no fewer innovative and visionaries) by Prada, Chanel, and Raf Simmons. If, as Bauman states, it is true that we have entered in a phase of Retrotopia characterized by the inability to think about new forms of the future; it is necessary, more than ever, to redefine the role of history, of its narration and its mise en scène, within the contemporary creative process. A process that increasingly requires an in-depth knowledge of the past for the definition of a renewed discourse about design processes. A discourse in which words like archive, exhibition, curating, revival, vintage, and costume take on new meanings. The paper aims to investigate–through case studies, research, and professional projects–the renewed role of curating and preserving fashion artefacts. A renewed role that–in an era of Retrotopia–museums, exhibitions, and archives can (and must) assume, to contribute to the definition of new design paradigms, capable of overcoming the traditional categories of revival or costume in favour of a more contemporary “mash-up” approach. Mash-up in which past and present, craftsmanship and new technologies, revival and experimentation merge seamlessly. In this perspective, dresses (as well as fashion accessories) should be considered not only as finished products but as artefacts capable of talking about the past and of producing unpublished new stories at the same time. Archives, exhibitions (academic and not), and museums thus become powerful sources of inspiration for fashion: places and projects capable of generating innovation, becoming active protagonists of the contemporary fashion design processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heritage" title="heritage">heritage</a>, <a href="https://publications.waset.org/abstracts/search?q=history" title=" history"> history</a>, <a href="https://publications.waset.org/abstracts/search?q=costume%20and%20fashion%20interface" title=" costume and fashion interface"> costume and fashion interface</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=language" title=" language"> language</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20research" title=" design research"> design research</a> </p> <a href="https://publications.waset.org/abstracts/126307/fashion-utopias-the-role-of-fashion-exhibitions-and-fashion-archives-to-defining-and-stimulating-possible-future-fashion-landscapes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126307.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">114</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Effects of Soil Neutron Irradiation in Soil Carbon Neutron Gamma Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Kavetskiy">Aleksandr Kavetskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Galina%20Yakubova"> Galina Yakubova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Sargsyan"> Nikolay Sargsyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20A.%20Prior"> Stephen A. Prior</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Allen%20Torbert"> H. Allen Torbert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The carbon sequestration question of modern times requires the development of an in-situ method of measuring soil carbon over large landmasses. Traditional chemical analytical methods used to evaluate large land areas require extensive soil sampling prior to processing for laboratory analysis; collectively, this is labor-intensive and time-consuming. An alternative method is to apply nuclear physics analysis, primarily in the form of pulsed fast-thermal neutron-gamma soil carbon analysis. This method is based on measuring the gamma-ray response that appears upon neutron irradiation of soil. Specific gamma lines with energies of 4.438 MeV appearing from neutron irradiation can be attributed to soil carbon nuclei. Based on measuring gamma line intensity, assessments of soil carbon concentration can be made. This method can be done directly in the field using a specially developed pulsed fast-thermal neutron-gamma system (PFTNA system). This system conducts in-situ analysis in a scanning mode coupled with GPS, which provides soil carbon concentration and distribution over large fields. The system has radiation shielding to minimize the dose rate (within radiation safety guidelines) for safe operator usage. Questions concerning the effect of neutron irradiation on soil health will be addressed. Information regarding absorbed neutron and gamma dose received by soil and its distribution with depth will be discussed in this study. This information was generated based on Monte-Carlo simulations (MCNP6.2 code) of neutron and gamma propagation in soil. Received data were used for the analysis of possible induced irradiation effects. The physical, chemical and biological effects of neutron soil irradiation were considered. From a physical aspect, we considered neutron (produced by the PFTNA system) induction of new isotopes and estimated the possibility of increasing the post-irradiation gamma background by comparisons to the natural background. An insignificant increase in gamma background appeared immediately after irradiation but returned to original values after several minutes due to the decay of short-lived new isotopes. From a chemical aspect, possible radiolysis of water (presented in soil) was considered. Based on stimulations of radiolysis of water, we concluded that the gamma dose rate used cannot produce gamma rays of notable rates. Possible effects of neutron irradiation (by the PFTNA system) on soil biota were also assessed experimentally. No notable changes were noted at the taxonomic level, nor was functional soil diversity affected. Our assessment suggested that the use of a PFTNA system with a neutron flux of 1e7 n/s for soil carbon analysis does not notably affect soil properties or soil health. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20sequestration" title="carbon sequestration">carbon sequestration</a>, <a href="https://publications.waset.org/abstracts/search?q=neutron%20gamma%20analysis" title=" neutron gamma analysis"> neutron gamma analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20effect%20on%20soil" title=" radiation effect on soil"> radiation effect on soil</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte-Carlo%20simulation" title=" Monte-Carlo simulation"> Monte-Carlo simulation</a> </p> <a href="https://publications.waset.org/abstracts/149497/effects-of-soil-neutron-irradiation-in-soil-carbon-neutron-gamma-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149497.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Computer Based Identification of Possible Molecular Targets for Induction of Drug Resistance Reversion in Multidrug Resistant Mycobacterium Tuberculosis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oleg%20Reva">Oleg Reva</a>, <a href="https://publications.waset.org/abstracts/search?q=Ilya%20Korotetskiy"> Ilya Korotetskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Marina%20Lankina"> Marina Lankina</a>, <a href="https://publications.waset.org/abstracts/search?q=Murat%20Kulmanov"> Murat Kulmanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Ilin"> Aleksandr Ilin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Molecular docking approaches are widely used for design of new antibiotics and modeling of antibacterial activities of numerous ligands which bind specifically to active centers of indispensable enzymes and/or key signaling proteins of pathogens. Widespread drug resistance among pathogenic microorganisms calls for development of new antibiotics specifically targeting important metabolic and information pathways. A generally recognized problem is that almost all molecular targets have been identified already and it is getting more and more difficult to design innovative antibacterial compounds to combat the drug resistance. A promising way to overcome the drug resistance problem is an induction of reversion of drug resistance by supplementary medicines to improve the efficacy of the conventional antibiotics. In contrast to well established computer-based drug design, modeling of drug resistance reversion still is in its infancy. In this work, we proposed an approach to identification of compensatory genetic variants reducing the fitness cost associated with the acquisition of drug resistance by pathogenic bacteria. The approach was based on an analysis of the population genetic of Mycobacterium tuberculosis and on results of experimental modeling of the drug resistance reversion induced by a new anti-tuberculosis drug FS-1. The latter drug is an iodine-containing nanomolecular complex that passed clinical trials and was admitted as a new medicine against MDR-TB in Kazakhstan. Isolates of M. tuberculosis obtained on different stages of the clinical trials and also from laboratory animals infected with MDR-TB strain were characterized by antibiotic resistance, and their genomes were sequenced by the paired-end Illumina HiSeq 2000 technology. A steady increase in sensitivity to conventional anti-tuberculosis antibiotics in series of isolated treated with FS-1 was registered despite the fact that the canonical drug resistance mutations identified in the genomes of these isolates remained intact. It was hypothesized that the drug resistance phenotype in M. tuberculosis requires an adjustment of activities of many genes to compensate the fitness cost of the drug resistance mutations. FS-1 cased an aggravation of the fitness cost and removal of the drug-resistant variants of M. tuberculosis from the population. This process caused a significant increase in genetic heterogeneity of the Mtb population that was not observed in the positive and negative controls (infected laboratory animals left untreated and treated solely with the antibiotics). A large-scale search for linkage disequilibrium associations between the drug resistance mutations and genetic variants in other genomic loci allowed identification of target proteins, which could be influenced by supplementary drugs to increase the fitness cost of the drug resistance and deprive the drug-resistant bacterial variants of their competitiveness in the population. The approach will be used to improve the efficacy of FS-1 and also for computer-based design of new drugs to combat drug-resistant infections. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complete%20genome%20sequencing" title="complete genome sequencing">complete genome sequencing</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20modeling" title=" computational modeling"> computational modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20resistance%20reversion" title=" drug resistance reversion"> drug resistance reversion</a>, <a href="https://publications.waset.org/abstracts/search?q=Mycobacterium%20tuberculosis" title=" Mycobacterium tuberculosis"> Mycobacterium tuberculosis</a> </p> <a href="https://publications.waset.org/abstracts/62242/computer-based-identification-of-possible-molecular-targets-for-induction-of-drug-resistance-reversion-in-multidrug-resistant-mycobacterium-tuberculosis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62242.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">263</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Diffusion MRI: Clinical Application in Radiotherapy Planning of Intracranial Pathology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pomozova%20Kseniia">Pomozova Kseniia</a>, <a href="https://publications.waset.org/abstracts/search?q=Gorlachev%20Gennadiy"> Gorlachev Gennadiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Chernyaev%20Aleksandr"> Chernyaev Aleksandr</a>, <a href="https://publications.waset.org/abstracts/search?q=Golanov%20Andrey"> Golanov Andrey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In clinical practice, and especially in stereotactic radiosurgery planning, the significance of diffusion-weighted imaging (DWI) is growing. This makes the existence of software capable of quickly processing and reliably visualizing diffusion data, as well as equipped with tools for their analysis in terms of different tasks. We are developing the «MRDiffusionImaging» software on the standard C++ language. The subject part has been moved to separate class libraries and can be used on various platforms. The user interface is Windows WPF (Windows Presentation Foundation), which is a technology for managing Windows applications with access to all components of the .NET 5 or .NET Framework platform ecosystem. One of the important features is the use of a declarative markup language, XAML (eXtensible Application Markup Language), with which you can conveniently create, initialize and set properties of objects with hierarchical relationships. Graphics are generated using the DirectX environment. The MRDiffusionImaging software package has been implemented for processing diffusion magnetic resonance imaging (dMRI), which allows loading and viewing images sorted by series. An algorithm for "masking" dMRI series based on T2-weighted images was developed using a deformable surface model to exclude tissues that are not related to the area of interest from the analysis. An algorithm of distortion correction using deformable image registration based on autocorrelation of local structure has been developed. Maximum voxel dimension was 1,03 ± 0,12 mm. In an elementary brain's volume, the diffusion tensor is geometrically interpreted using an ellipsoid, which is an isosurface of the probability density of a molecule's diffusion. For the first time, non-parametric intensity distributions, neighborhood correlations, and inhomogeneities are combined in one segmentation of white matter (WM), grey matter (GM), and cerebrospinal fluid (CSF) algorithm. A tool for calculating the coefficient of average diffusion and fractional anisotropy has been created, on the basis of which it is possible to build quantitative maps for solving various clinical problems. Functionality has been created that allows clustering and segmenting images to individualize the clinical volume of radiation treatment and further assess the response (Median Dice Score = 0.963 ± 0,137). White matter tracts of the brain were visualized using two algorithms: deterministic (fiber assignment by continuous tracking) and probabilistic using the Hough transform. The proposed algorithms test candidate curves in the voxel, assigning to each one a score computed from the diffusion data, and then selects the curves with the highest scores as the potential anatomical connections. White matter fibers were visualized using a Hough transform tractography algorithm. In the context of functional radiosurgery, it is possible to reduce the irradiation volume of the internal capsule receiving 12 Gy from 0,402 cc to 0,254 cc. The «MRDiffusionImaging» will improve the efficiency and accuracy of diagnostics and stereotactic radiotherapy of intracranial pathology. We develop software with integrated, intuitive support for processing, analysis, and inclusion in the process of radiotherapy planning and evaluating its results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diffusion-weighted%20imaging" title="diffusion-weighted imaging">diffusion-weighted imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20imaging" title=" medical imaging"> medical imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=stereotactic%20radiosurgery" title=" stereotactic radiosurgery"> stereotactic radiosurgery</a>, <a href="https://publications.waset.org/abstracts/search?q=tractography" title=" tractography"> tractography</a> </p> <a href="https://publications.waset.org/abstracts/156540/diffusion-mri-clinical-application-in-radiotherapy-planning-of-intracranial-pathology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156540.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Gamification Beyond Competition: the Case of DPG Lab Collaborative Learning Program for High-School Girls by GameLab KBTU and UNICEF in Kazakhstan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nazym%20Zhumabayeva">Nazym Zhumabayeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandr%20Mezin"> Aleksandr Mezin</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Knysheva"> Alexandra Knysheva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Women's underrepresentation in STEM is critical, worsened by ineffective engagement in educational practices. UNICEF Kazakhstan and GameLab KBTU's collaborative initiatives aim to enhance female STEM participation by fostering an inclusive environment. Learning from LEVEL UP's 2023 program, which featured a hackathon, the 2024 strategy pivots towards non-competitive gamification. Although the data from last year's project showed higher than average student engagement, observations and in-depth interviews with participants showed that the format was stressful for the girls, making them focus on points rather than on other values. This study presents a gamified educational system, DPG Lab, aimed at incentivizing young women's participation in STEM through the development of digital public goods (DPGs). By prioritizing collaborative gamification elements, the project seeks to create an inclusive learning environment that increases engagement and interest in STEM among young women. The DPG Lab aims to find a solution to minimize competition and support collaboration. The project is designed to motivate female participants towards the development of digital solutions through an introduction to the concept of DPGs. It consists of a short online course, a simulation videogame, and a real-time online quest with an offline finale at the KBTU campus. The online course offers short video lectures on open-source development and DPG standards. The game facilitates the practical application of theoretical knowledge, enriching the learning experience. Learners can also participate in a quest that encourages participants to develop DPG ideas in teams by choosing missions throughout the quest path. At the offline quest finale, the participants will meet in person to exchange experiences and accomplishments without engaging in comparative assessments: the quest ensures that each team’s trajectory is distinct by design. This marks a shift from competitive hackathons to a collaborative format, recognizing the unique contributions and achievements of each participant. The pilot batch of students is scheduled to commence in April 2024, with the finale anticipated in June. It is projected that this group will comprise 50 female high-school students from various regions across Kazakhstan. Expected outcomes include increased engagement and interest in STEM fields among young female participants, positive emotional and psychological impact through an emphasis on collaborative learning environments, and improved understanding and skills in DPG development. GameLab KBTU intends to undertake a hypothesis evaluation, employing a methodology similar to that utilized in the preceding LEVEL UP project. This approach will encompass the compilation of quantitative metrics (conversion funnels, test results, and surveys) and qualitative data from in-depth interviews and observational studies. For comparative analysis, a select group of participants from the previous year's project will be recruited to engage in the DPG Lab. By developing and implementing a gamified framework that emphasizes inclusion, engagement, and collaboration, the study seeks to provide practical knowledge about effective gamification strategies for promoting gender diversity in STEM. The expected outcomes of this initiative can contribute to the broader discussion on gamification in education and gender equality in STEM by offering a replicable and scalable model for similar interventions around the world. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=collaborative%20learning" title="collaborative learning">collaborative learning</a>, <a href="https://publications.waset.org/abstracts/search?q=competitive%20learning" title=" competitive learning"> competitive learning</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20public%20goods" title=" digital public goods"> digital public goods</a>, <a href="https://publications.waset.org/abstracts/search?q=educational%20gamification" title=" educational gamification"> educational gamification</a>, <a href="https://publications.waset.org/abstracts/search?q=emerging%20regions" title=" emerging regions"> emerging regions</a>, <a href="https://publications.waset.org/abstracts/search?q=STEM" title=" STEM"> STEM</a>, <a href="https://publications.waset.org/abstracts/search?q=underprivileged%20groups" title=" underprivileged groups"> underprivileged groups</a> </p> <a href="https://publications.waset.org/abstracts/183511/gamification-beyond-competition-the-case-of-dpg-lab-collaborative-learning-program-for-high-school-girls-by-gamelab-kbtu-and-unicef-in-kazakhstan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183511.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">64</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a 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