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Dimitrov</title> <meta name="description" content="Search results for: Daniel Dimitrov"> <meta name="keywords" content="Daniel Dimitrov"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Daniel Dimitrov"> <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> 511</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Daniel Dimitrov</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">511</span> BingleSeq: A User-Friendly R Package for Single-Cell RNA-Seq Data Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Quan%20Gu">Quan Gu</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20%20Dimitrov"> Daniel Dimitrov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> BingleSeq was developed as a shiny-based, intuitive, and comprehensive application that enables the analysis of single-Cell RNA-Sequencing count data. This was achieved via incorporating three state-of-the-art software packages for each type of RNA sequencing analysis, alongside functional annotation analysis and a way to assess the overlap of differential expression method results. At its current state, the functionality implemented within BingleSeq is comparable to that of other applications, also developed with the purpose of lowering the entry requirements to RNA Sequencing analyses. BingleSeq is available on GitHub and will be submitted to R/Bioconductor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioinformatics" title="bioinformatics">bioinformatics</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20annotation%20analysis" title=" functional annotation analysis"> functional annotation analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=single-cell%20RNA-sequencing" title=" single-cell RNA-sequencing"> single-cell RNA-sequencing</a>, <a href="https://publications.waset.org/abstracts/search?q=transcriptomics" title=" transcriptomics"> transcriptomics</a> </p> <a href="https://publications.waset.org/abstracts/120198/bingleseq-a-user-friendly-r-package-for-single-cell-rna-seq-data-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120198.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">204</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">510</span> Optics Meets Microfluidics for Highly Sensitive Force Sensing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Iliya%20Dimitrov%20Stoev">Iliya Dimitrov Stoev</a>, <a href="https://publications.waset.org/abstracts/search?q=Benjamin%20Seelbinder"> Benjamin Seelbinder</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20Erben"> Elena Erben</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicola%20Maghelli"> Nicola Maghelli</a>, <a href="https://publications.waset.org/abstracts/search?q=Moritz%20Kreysing"> Moritz Kreysing</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite the revolutionizing impact of optical tweezers in materials science and cell biology up to the present date, trapping has so far extensively relied on specific material properties of the probe and local heating has limited applications related to investigating dynamic processes within living systems. To overcome these limitations while maintaining high sensitivity, here we present a new optofluidic approach that can be used to gently trap microscopic particles and measure femtoNewton forces in a contact-free manner and with thermally limited precision. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optofluidics" title="optofluidics">optofluidics</a>, <a href="https://publications.waset.org/abstracts/search?q=force%20measurements" title=" force measurements"> force measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=microrheology" title=" microrheology"> microrheology</a>, <a href="https://publications.waset.org/abstracts/search?q=FLUCS" title=" FLUCS"> FLUCS</a>, <a href="https://publications.waset.org/abstracts/search?q=thermoviscous%20flows" title=" thermoviscous flows"> thermoviscous flows</a> </p> <a href="https://publications.waset.org/abstracts/147676/optics-meets-microfluidics-for-highly-sensitive-force-sensing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147676.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">170</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">509</span> Comparing Image Processing and AI Techniques for Disease Detection in Plants</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Daniel%20Garay%20Trindade">Luiz Daniel Garay Trindade</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20De%20Freitas%20Valle%20Neto"> Antonio De Freitas Valle Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Fabio%20Paulo%20Basso"> Fabio Paulo Basso</a>, <a href="https://publications.waset.org/abstracts/search?q=Elder%20De%20Macedo%20Rodrigues"> Elder De Macedo Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Maicon%20Bernardino"> Maicon Bernardino</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Welfer"> Daniel Welfer</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Muller"> Daniel Muller</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agriculture plays an important role in society since it is one of the main sources of food in the world. To help the production and yield of crops, precision agriculture makes use of technologies aiming at improving productivity and quality of agricultural commodities. One of the problems hampering quality of agricultural production is the disease affecting crops. Failure in detecting diseases in a short period of time can result in small or big damages to production, causing financial losses to farmers. In order to provide a map of the contributions destined to the early detection of plant diseases and a comparison of the accuracy of the selected studies, a systematic literature review of the literature was performed, showing techniques for digital image processing and neural networks. We found 35 interesting tool support alternatives to detect disease in 19 plants. Our comparison of these studies resulted in an overall average accuracy of 87.45%, with two studies very closer to obtain 100%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pattern%20recognition" title="pattern recognition">pattern recognition</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title=" image processing"> image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20learning" title=" deep learning"> deep learning</a>, <a href="https://publications.waset.org/abstracts/search?q=precision%20agriculture" title=" precision agriculture"> precision agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20farming" title=" smart farming"> smart farming</a>, <a href="https://publications.waset.org/abstracts/search?q=agricultural%20automation" title=" agricultural automation"> agricultural automation</a> </p> <a href="https://publications.waset.org/abstracts/129444/comparing-image-processing-and-ai-techniques-for-disease-detection-in-plants" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129444.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">508</span> Obsession of Time and the New Musical Ontologies. The Concert for Saxophone, Daniel Kientzy and Orchestra by Myriam Marbe</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dutica%20Luminita">Dutica Luminita</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the music composer Myriam Marbe the musical time and memory represent 2 (complementary) phenomena with conclusive impact on the settlement of new musical ontologies. Summarizing the most important achievements of the contemporary techniques of composition, her vision on the microform presented in The Concert for Daniel Kientzy, saxophone and orchestra transcends the linear and unidirectional time in favour of a flexible, multi-vectorial speech with spiral developments, where the sound substance is auto(re)generated by analogy with the fundamental processes of the memory. The conceptual model is of an archetypal essence, the music composer being concerned with identifying the mechanisms of the creation process, especially of those specific to the collective creation (of oral tradition). Hence the spontaneity of expression, improvisation tint, free rhythm, micro-interval intonation, coloristic-timbral universe dominated by multiphonics and unique sound effects. Hence the atmosphere of ritual, however purged by the primary connotations and reprojected into a wonderful spectacular space. The Concert is a work of artistic maturity and enforces respect, among others, by the timbral diversity of the three species of saxophone required by the music composer (baritone, sopranino and alt), in Part III Daniel Kientzy shows the performance of playing two saxophones concomitantly. The score of the music composer Myriam Marbe contains a deeply spiritualized music, full or archetypal symbols, a music whose drama suggests a real cinematographic movement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=archetype" title="archetype">archetype</a>, <a href="https://publications.waset.org/abstracts/search?q=chronogenesis" title=" chronogenesis"> chronogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=concert" title=" concert"> concert</a>, <a href="https://publications.waset.org/abstracts/search?q=multiphonics" title=" multiphonics"> multiphonics</a> </p> <a href="https://publications.waset.org/abstracts/29047/obsession-of-time-and-the-new-musical-ontologies-the-concert-for-saxophone-daniel-kientzy-and-orchestra-by-myriam-marbe" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29047.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">543</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">507</span> Realization of Wearable Inertial Measurement Units-Sensor-Fusion Harness to Control Therapeutic Smartphone Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Svilen%20Dimitrov">Svilen Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Manthan%20Pancholi"> Manthan Pancholi</a>, <a href="https://publications.waset.org/abstracts/search?q=Norbert%20Schmitz"> Norbert Schmitz</a>, <a href="https://publications.waset.org/abstracts/search?q=Didier%20Stricker"> Didier Stricker</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the end-to-end development of a wearable motion sensing harness consisting of computational unit and four inertial measurement units to control three smartphone therapeutic games for children. The inertial data is processed in real time to obtain lower body motion information like knee raises, feet taps and squads. By providing a Wi-Fi connection interface the sensor harness acts wireless remote control for smartphone applications. By performing various lower body movements the users provoke corresponding game state changes. In contrary to the current similar offers, like Nintendo Wii Remote, Xbox Kinect and Playstation Move, this product, consisting of the sensor harness and the applications on top of it, are fully wearable, which means they do not rely on the user to be bound to concrete soft- or hardwareequipped space. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wearable%20harness" title="wearable harness">wearable harness</a>, <a href="https://publications.waset.org/abstracts/search?q=inertial%20measurement%20units" title=" inertial measurement units"> inertial measurement units</a>, <a href="https://publications.waset.org/abstracts/search?q=smartphone%20therapeutic%20games" title=" smartphone therapeutic games"> smartphone therapeutic games</a>, <a href="https://publications.waset.org/abstracts/search?q=motion%20tracking" title=" motion tracking"> motion tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=lower-body%20activity%20monitoring" title=" lower-body activity monitoring"> lower-body activity monitoring</a> </p> <a href="https://publications.waset.org/abstracts/65691/realization-of-wearable-inertial-measurement-units-sensor-fusion-harness-to-control-therapeutic-smartphone-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65691.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">403</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">506</span> Effect of the Nature of the Precursor on the Performance of Cu-Mn Catalysts for CO and VOCs Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20Kolentsova">Elitsa Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Dimitrov"> Dimitar Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov"> Krasimir Ivanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The catalytic oxidation of methanol to formaldehyde is an important industrial process in which the waste gas in addition to CO contains methanol and dimethyl ether (DME). Evaluation of the possibility of removing the harmful components from the exhaust gasses needs a more complex investigation. Our previous work indicates that supported Cu-Mn oxide catalysts are promising for effective deep oxidation of these compounds. This work relates to the catalyst, comprising copper-manganese spinel, coated on carrier γ-Al₂O₃. The effect of preparation conditions on the active component composition and activity behavior of the catalysts is discussed. Different organometallic compounds on the base of four natural amino acids (Glycine, Alanine, Valine, Leucine) as precursors were used for the preparation of catalysts with Cu/Mn molar ratio 1:5. X-Ray and TEM analysis were performed on the catalyst’s bulk, and surface composition and the specific surface area was determined by BET method. The results obtained show that the activity of the catalysts increase up to 40% although there are some specific features, depending on the nature of the amino acid and the oxidized compound. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu-Mn%2F%CE%B3-Al%E2%82%82O%E2%82%83" title="Cu-Mn/γ-Al₂O₃">Cu-Mn/γ-Al₂O₃</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%20and%20VOCs%20oxidation" title=" CO and VOCs oxidation"> CO and VOCs oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=heterogeneous%20catalysis" title=" heterogeneous catalysis"> heterogeneous catalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=amino%20acids" title=" amino acids"> amino acids</a> </p> <a href="https://publications.waset.org/abstracts/68203/effect-of-the-nature-of-the-precursor-on-the-performance-of-cu-mn-catalysts-for-co-and-vocs-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68203.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">240</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">505</span> Intra-miR-ExploreR, a Novel Bioinformatics Platform for Integrated Discovery of MiRNA:mRNA Gene Regulatory Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surajit%20Bhattacharya">Surajit Bhattacharya</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Veltri"> Daniel Veltri</a>, <a href="https://publications.waset.org/abstracts/search?q=Atit%20A.%20Patel"> Atit A. Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20N.%20Cox"> Daniel N. Cox</a> </p> <p class="card-text"><strong>Abstract:</strong></p> miRNAs have emerged as key post-transcriptional regulators of gene expression, however identification of biologically-relevant target genes for this epigenetic regulatory mechanism remains a significant challenge. To address this knowledge gap, we have developed a novel tool in R, Intra-miR-ExploreR, that facilitates integrated discovery of miRNA targets by incorporating target databases and novel target prediction algorithms, using statistical methods including Pearson and Distance Correlation on microarray data, to arrive at high confidence intragenic miRNA target predictions. We have explored the efficacy of this tool using Drosophila melanogaster as a model organism for bioinformatics analyses and functional validation. A number of putative targets were obtained which were also validated using qRT-PCR analysis. Additional features of the tool include downloadable text files containing GO analysis from DAVID and Pubmed links of literature related to gene sets. Moreover, we are constructing interaction maps of intragenic miRNAs, using both micro array and RNA-seq data, focusing on neural tissues to uncover regulatory codes via which these molecules regulate gene expression to direct cellular development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=miRNA" title="miRNA">miRNA</a>, <a href="https://publications.waset.org/abstracts/search?q=miRNA%3AmRNA%20target%20prediction" title=" miRNA:mRNA target prediction"> miRNA:mRNA target prediction</a>, <a href="https://publications.waset.org/abstracts/search?q=statistical%20methods" title=" statistical methods"> statistical methods</a>, <a href="https://publications.waset.org/abstracts/search?q=miRNA%3AmRNA%20interaction%20network" title=" miRNA:mRNA interaction network"> miRNA:mRNA interaction network</a> </p> <a href="https://publications.waset.org/abstracts/27427/intra-mir-explorer-a-novel-bioinformatics-platform-for-integrated-discovery-of-mirnamrna-gene-regulatory-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27427.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">510</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">504</span> Alumina Supported Cu-Mn-La Catalysts for CO and VOCs Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20N.%20Kolentsova">Elitsa N. Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Y.%20Dimitrov"> Dimitar Y. Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Petya%20Cv.%20Petrova"> Petya Cv. Petrova</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgi%20V.%20Avdeev"> Georgi V. Avdeev</a>, <a href="https://publications.waset.org/abstracts/search?q=Diana%20D.%20Nihtianova"> Diana D. Nihtianova</a>, <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20I.%20Ivanov"> Krasimir I. Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20T.%20Tabakova"> Tatyana T. Tabakova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, copper and manganese-containing systems are recognized as active and selective catalysts in many oxidation reactions. The main idea of this study is to obtain more information about γ-Al<sub>2</sub>O<sub>3 </sub>supported Cu-La catalysts and to evaluate their activity to simultaneous oxidation of CO, CH<sub>3</sub>OH and dimethyl ether (DME). The catalysts were synthesized by impregnation of support with a mixed aqueous solution of nitrates of copper, manganese and lanthanum under different conditions. XRD, HRTEM/EDS, TPR and thermal analysis were performed to investigate catalysts’ bulk and surface properties. The texture characteristics were determined by Quantachrome Instruments NOVA 1200e specific surface area and pore analyzer. The catalytic measurements of single compounds oxidation were carried out on continuous flow equipment with a four-channel isothermal stainless steel reactor in a wide temperature range. On the basis of XRD analysis and HRTEM/EDS, it was concluded that the active component of the mixed Cu-Mn-La/γ–alumina catalysts strongly depends on the Cu/Mn molar ratio and consisted of at least four compounds – CuO, La<sub>2</sub>O<sub>3</sub>, MnO<sub>2</sub> and Cu<sub>1.5</sub>Mn<sub>1.5</sub>O<sub>4</sub>. A homogeneous distribution of the active component on the carrier surface was found. The chemical composition strongly influenced catalytic properties. This influence was quite variable with regards to the different processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu-Mn-La%20oxide%20catalysts" title="Cu-Mn-La oxide catalysts">Cu-Mn-La oxide catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20oxide" title=" carbon oxide"> carbon oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=VOCs" title=" VOCs"> VOCs</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20oxidation" title=" deep oxidation"> deep oxidation</a> </p> <a href="https://publications.waset.org/abstracts/52487/alumina-supported-cu-mn-la-catalysts-for-co-and-vocs-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52487.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">260</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">503</span> Supported Gold Nanocatalysts for CO Oxidation in Mainstream Cigarette Smoke</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov">Krasimir Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Dimitrov"> Dimitar Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20Tabakova"> Tatyana Tabakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefka%20Kirkova"> Stefka Kirkova</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20Stoilova"> Anna Stoilova</a>, <a href="https://publications.waset.org/abstracts/search?q=Violina%20Angelova"> Violina Angelova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It has been suggested that nicotine, CO and tar in mainstream smoke are the most important substances and have been judged as the most harmful compounds, responsible for the health hazards of smoking. As nicotine is extremely important for smoking qualities of cigarettes and the tar yield in the tobacco smoke is significantly reduced due to the use of filters with various content and design, the main efforts of cigarettes researchers and manufacturers are related to the search of opportunities for CO content reduction. Highly active ceria supported gold catalyst was prepared by the deposition-precipitation method, and the possibilities for CO oxidation in the synthetic gaseous mixture were evaluated using continuous flow equipment with fixed bed glass reactor at atmospheric pressure. The efficiently of the catalyst in CO oxidation in the real cigarette smoke was examined by a single port, puf-by-puff smoking machine. Quality assessment of smoking using cigarette holder containing catalyst was carried out. It was established that the catalytic activity toward CO oxidation in cigarette smoke rapidly decreases from 70% for the first cigarette to nearly zero for the twentieth cigarette. The present study shows that there are two critical factors which do not permit the successful use of catalysts to reduce the CO content in the mainstream cigarette smoke: (i) significant influence of the processes of adsorption and oxidation on the main characteristics of tobacco products and (ii) rapid deactivation of the catalyst due to the covering of the catalyst’s grains with condensate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cigarette%20smoke" title="cigarette smoke">cigarette smoke</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%20oxidation" title=" CO oxidation"> CO oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=gold%20catalyst" title=" gold catalyst"> gold catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=mainstream" title=" mainstream"> mainstream</a> </p> <a href="https://publications.waset.org/abstracts/79868/supported-gold-nanocatalysts-for-co-oxidation-in-mainstream-cigarette-smoke" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79868.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">219</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">502</span> Alumina Supported Cu-Mn-Cr Catalysts for CO and VOCs oxidation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov">Krasimir Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20Kolentsova"> Elitsa Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Dimitrov"> Dimitar Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Petya%20Petrova"> Petya Petrova</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20Tabakova"> Tatyana Tabakova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work studies the effect of chemical composition on the activity and selectivity of γ–alumina supported CuO/ MnO2/Cr2O3 catalysts toward deep oxidation of CO, dimethyl ether (DME) and methanol. The catalysts were prepared by impregnation of the support with an aqueous solution of copper nitrate, manganese nitrate and CrO3 under different conditions. Thermal, XRD and TPR analysis were performed. The catalytic measurements of single compounds oxidation were carried out on continuous flow equipment with a four-channel isothermal stainless steel reactor. Flow-line equipment with an adiabatic reactor for simultaneous oxidation of all compounds under the conditions that mimic closely the industrial ones was used. The reactant and product gases were analyzed by means of on-line gas chromatographs. On the basis of XRD analysis it can be concluded that the active component of the mixed Cu-Mn-Cr/γ–alumina catalysts consists of at least six compounds – CuO, Cr2O3, MnO2, Cu1.5Mn1.5O4, Cu1.5Cr1.5O4 and CuCr2O4, depending on the Cu/Mn/Cr molar ratio. Chemical composition strongly influences catalytic properties, this influence being quite variable with regards to the different processes. The rate of CO oxidation rapidly decrease with increasing of chromium content in the active component while for the DME was observed the reverse trend. It was concluded that the best compromise are the catalysts with Cu/(Mn + Cr) molar ratio 1:5 and Mn/Cr molar ratio from 1:3 to 1:4. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu-Mn-Cr%20oxide%20catalysts" title="Cu-Mn-Cr oxide catalysts">Cu-Mn-Cr oxide catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=volatile%20organic%20compounds" title=" volatile organic compounds"> volatile organic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20oxidation" title=" deep oxidation"> deep oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=dimethyl%20ether%20%28DME%29" title=" dimethyl ether (DME)"> dimethyl ether (DME)</a> </p> <a href="https://publications.waset.org/abstracts/23641/alumina-supported-cu-mn-cr-catalysts-for-co-and-vocs-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23641.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">369</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">501</span> Alumina Supported Copper-Manganese Catalysts for Combustion of Exhaust Gases: Effect of Preparation Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov">Krasimir Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20Kolentsova"> Elitsa Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Dimitrov"> Dimitar Dimitrov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The development of active and stable catalysts without noble metals for low temperature oxidation of exhaust gases remains a significant challenge. The purpose of this study is to determine the influence of the preparation method on the catalytic activity of the supported copper-manganese mixed oxides in terms of VOCs oxidation. The catalysts were prepared by impregnation of γ-Al2O3 with copper and manganese nitrates and acetates and the possibilities for CO, CH3OH and dimethyl ether (DME) oxidation were evaluated using continuous flow equipment with a four-channel isothermal stainless steel reactor. Effect of the support, Cu/Mn mole ratio, heat treatment of the precursor and active component loading were investigated. Highly active alumina supported Cu-Mn catalysts for CO and VOCs oxidation were synthesized. The effect of preparation conditions on the activity behavior of the catalysts was discussed. The synergetic interaction between copper and manganese species increases the activity for complete oxidation over mixed catalysts. Type of support, calcination temperature and active component loading along with catalyst composition are important factors, determining catalytic activity. Cu/Mn molar ratio of 1:5, heat treatment at 450oC and 20 % active component loading are the best compromise for production of active catalyst for simultaneous combustion of CO, CH3OH and DME. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=copper-manganese%20catalysts" title="copper-manganese catalysts">copper-manganese catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=CO" title=" CO"> CO</a>, <a href="https://publications.waset.org/abstracts/search?q=VOCs%20oxidation" title=" VOCs oxidation"> VOCs oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=exhaust%20gases" title=" exhaust gases"> exhaust gases</a> </p> <a href="https://publications.waset.org/abstracts/22828/alumina-supported-copper-manganese-catalysts-for-combustion-of-exhaust-gases-effect-of-preparation-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22828.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">412</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">500</span> Extensions to Chen's Minimizing Equal Mass Paralellogram Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdalla%20Manur">Abdalla Manur</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Offin"> Daniel Offin</a>, <a href="https://publications.waset.org/abstracts/search?q=Alessandro%20Arsie"> Alessandro Arsie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we study the extension of the minimizing equal mass parallelogram solutions which was derived by Chen in 2001. Chen’s solution was minimizing for one quarter of the period [0; T], where numerical integration had been used in his proof. This paper focuses on extending the minimization property to intervals of time [0; 2T] and [0; 4T]. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=action" title="action">action</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamiltoian" title=" Hamiltoian"> Hamiltoian</a>, <a href="https://publications.waset.org/abstracts/search?q=N-body" title=" N-body"> N-body</a>, <a href="https://publications.waset.org/abstracts/search?q=symmetry" title=" symmetry"> symmetry</a> </p> <a href="https://publications.waset.org/abstracts/59876/extensions-to-chens-minimizing-equal-mass-paralellogram-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59876.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">1688</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">499</span> Towards Law Data Labelling Using Topic Modelling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Pinheiro%20Da%20Silva%20Junior">Daniel Pinheiro Da Silva Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Aline%20Paes"> Aline Paes</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20De%20Oliveira"> Daniel De Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Christiano%20Lacerda%20Ghuerren"> Christiano Lacerda Ghuerren</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcio%20Duran"> Marcio Duran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Courts of Accounts are institutions responsible for overseeing and point out irregularities of Public Administration expenses. They have a high demand for processes to be analyzed, whose decisions must be grounded on severity laws. Despite the existing large amount of processes, there are several cases reporting similar subjects. Thus, previous decisions on already analyzed processes can be a precedent for current processes that refer to similar topics. Identifying similar topics is an open, yet essential task for identifying similarities between several processes. Since the actual amount of topics is considerably large, it is tedious and error-prone to identify topics using a pure manual approach. This paper presents a tool based on Machine Learning and Natural Language Processing to assists in building a labeled dataset. The tool relies on Topic Modelling with Latent Dirichlet Allocation to find the topics underlying a document followed by Jensen Shannon distance metric to generate a probability of similarity between documents pairs. Furthermore, in a case study with a corpus of decisions of the Rio de Janeiro State Court of Accounts, it was noted that data pre-processing plays an essential role in modeling relevant topics. Also, the combination of topic modeling and a calculated distance metric over document represented among generated topics has been proved useful in helping to construct a labeled base of similar and non-similar document pairs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=courts%20of%20accounts" title="courts of accounts">courts of accounts</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20labelling" title=" data labelling"> data labelling</a>, <a href="https://publications.waset.org/abstracts/search?q=document%20similarity" title=" document similarity"> document similarity</a>, <a href="https://publications.waset.org/abstracts/search?q=topic%20modeling" title=" topic modeling"> topic modeling</a> </p> <a href="https://publications.waset.org/abstracts/121281/towards-law-data-labelling-using-topic-modelling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121281.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">179</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">498</span> Policy Brief/Note of Philippine Health Issues: Human Rights Violations Committed on Healthcare Workers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Trina%20Isabel%20Santiago">Trina Isabel Santiago</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Chua"> Daniel Chua</a>, <a href="https://publications.waset.org/abstracts/search?q=Jumee%20Tayaban"> Jumee Tayaban</a>, <a href="https://publications.waset.org/abstracts/search?q=Joseph%20Daniel%20Timbol"> Joseph Daniel Timbol</a>, <a href="https://publications.waset.org/abstracts/search?q=Joshua%20Yanes"> Joshua Yanes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerous instances of human rights violations on healthcare workers have been reported during the COVID-19 pandemic in the Philippines. This brief aims to explore these civil and political rights violations and propose recommendations to address these. Our review shows that a wide range of civic and political human rights violations have been committed by individual citizens and government agencies on individual healthcare workers and health worker groups. These violations include discrimination, red-tagging, evictions, illegal arrests, and acts of violence ranging from chemical attacks to homicide. If left unchecked, these issues, compounded by the pandemic, may lead to the exacerbations of the pre-existing problems of the Philippine healthcare system. Despite all pre-existing reports by human rights groups and public media articles, there still seems to be a lack of government action to condemn and prevent these violations. The existence of government agencies which directly contribute to these violations with the lack of condemnation from other agencies further propagate the problem. Given these issues, this policy brief recommends the establishment of an interagency task force for the protection of human rights of healthcare workers as well as the expedited passing of current legislative bills towards the same goal. For more immediate action, we call for the establishment of a dedicated hotline for these incidents with adequate appointment and training of point persons, construction of clear guidelines, and closer collaboration between government agencies in being united against these issues. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20rights%20violations" title="human rights violations">human rights violations</a>, <a href="https://publications.waset.org/abstracts/search?q=healthcare%20workers" title=" healthcare workers"> healthcare workers</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19%20pandemic" title=" COVID-19 pandemic"> COVID-19 pandemic</a>, <a href="https://publications.waset.org/abstracts/search?q=Philippines" title=" Philippines"> Philippines</a> </p> <a href="https://publications.waset.org/abstracts/169601/policy-briefnote-of-philippine-health-issues-human-rights-violations-committed-on-healthcare-workers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/169601.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">629</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">497</span> Alumina Supported Copper-manganese Catalysts for Combustion of Exhaust Gases: Catalysts Characterization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20I.%20Ivanov">Krasimir I. Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20N.%20Kolentsova"> Elitsa N. Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Y.%20Dimitrov"> Dimitar Y. Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgi%20V.%20Avdeev"> Georgi V. Avdeev</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20T.%20Tabakova"> Tatyana T. Tabakova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent research copper and manganese systems were found to be the most active in CO and organic compounds oxidation among the base catalysts. The mixed copper manganese oxide has been widely studied in oxidation reactions because of their higher activity at low temperatures in comparison with single oxide catalysts. The results showed that the formation of spinel CuxMn3−xO4 in the oxidized catalyst is responsible for the activity even at room temperature. That is why most of the investigations are focused on the hopcalite catalyst (CuMn2O4) as the best copper-manganese catalyst. Now it’s known that this is true only for CO oxidation, but not for mixture of CO and VOCs. The purpose of this study is to investigate the alumina supported copper-manganese catalysts with different Cu/Mn molar ratio in terms of oxidation of CO, methanol and dimethyl ether. The catalysts were prepared by impregnation of γ-Al2O3 with copper and manganese nitrates and the catalytic activity measurements were carried out in continuous flow equipment with a four-channel isothermal stainless steel reactor. Gas mixtures on the input and output of the reactor were analyzed with a gas chromatograph, equipped with FID and TCD detectors. The texture characteristics were determined by low-temperature (- 196 oС) nitrogen adsorption in a Quantachrome Instruments NOVA 1200e (USA) specific surface area&pore analyzer. Thermal, XRD and TPR analyses were performed. It was established that the active component of the mixed Cu-Mn/γ–alumina catalysts strongly depends on the Cu/Mn molar ratio. Highly active alumina supported Cu-Mn catalysts for CO, methanol and DME oxidation were synthesized. While the hopcalite is the best catalyst for CO oxidation, the best compromise for simultaneous oxidation of all components is the catalyst with Cu/Mn molar ratio 1:5. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=supported%20copper-manganese%20catalysts" title="supported copper-manganese catalysts">supported copper-manganese catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=CO" title=" CO"> CO</a>, <a href="https://publications.waset.org/abstracts/search?q=VOCs%20oxidation" title=" VOCs oxidation"> VOCs oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion%20of%20exhaust%20gases" title=" combustion of exhaust gases"> combustion of exhaust gases</a> </p> <a href="https://publications.waset.org/abstracts/23639/alumina-supported-copper-manganese-catalysts-for-combustion-of-exhaust-gases-catalysts-characterization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23639.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">285</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">496</span> Structure-Activity Relationship of Gold Catalysts on Alumina Supported Cu-Ce Oxides for CO and Volatile Organic Compound Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20T.%20Tabakova">Tatyana T. Tabakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20N.%20Kolentsova"> Elitsa N. Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Y.%20Dimitrov"> Dimitar Y. Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20I.%20Ivanov"> Krasimir I. Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Yordanka%20G.%20Karakirova"> Yordanka G. Karakirova</a>, <a href="https://publications.waset.org/abstracts/search?q=Petya%20Cv.%20Petrova"> Petya Cv. Petrova</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgi%20V.%20Avdeev"> Georgi V. Avdeev</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The catalytic oxidation of CO and volatile organic compounds (VOCs) is considered as one of the most efficient ways to reduce harmful emissions from various chemical industries. The effectiveness of gold-based catalysts for many reactions of environmental significance was proven during the past three decades. The aim of this work was to combine the favorable features of Au and Cu-Ce mixed oxides in the design of new catalytic materials of improved efficiency and economic viability for removal of air pollutants in waste gases from formaldehyde production. Supported oxides of copper and cerium with Cu: Ce molar ratio 2:1 and 1:5 were prepared by wet impregnation of g-alumina. Gold (2 wt.%) catalysts were synthesized by a deposition-precipitation method. Catalysts characterization was carried out by texture measurements, powder X-ray diffraction, temperature programmed reduction and electron paramagnetic resonance spectroscopy. The catalytic activity in the oxidation of CO, CH<sub>3</sub>OH and (CH<sub>3</sub>)<sub>2</sub>O was measured using continuous flow equipment with fixed bed reactor. Both Cu-Ce/alumina samples demonstrated similar catalytic behavior. The addition of gold caused significant enhancement of CO and methanol oxidation activity (100 % degree of CO and CH<sub>3</sub>OH conversion at about 60 and 140 <sup>o</sup>C, respectively). The composition of Cu-Ce mixed oxides affected the performance of gold-based samples considerably. Gold catalyst on Cu-Ce/γ-Al<sub>2</sub>O<sub>3</sub> 1:5 exhibited higher activity for CO and CH<sub>3</sub>OH oxidation in comparison with Au on Cu-Ce/γ-Al<sub>2</sub>O<sub>3</sub> 2:1. The better performance of Au/Cu-Ce 1:5 was related to the availability of highly dispersed gold particles and copper oxide clusters in close contact with ceria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO%20and%20VOCs%20oxidation" title="CO and VOCs oxidation">CO and VOCs oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=copper%20oxide" title=" copper oxide"> copper oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=Ceria" title=" Ceria"> Ceria</a>, <a href="https://publications.waset.org/abstracts/search?q=gold%20catalysts" title=" gold catalysts"> gold catalysts</a> </p> <a href="https://publications.waset.org/abstracts/68871/structure-activity-relationship-of-gold-catalysts-on-alumina-supported-cu-ce-oxides-for-co-and-volatile-organic-compound-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68871.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">318</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">495</span> Search for APN Permutations in Rings ℤ_2×ℤ_2^k</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Panario">Daniel Panario</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Santana%20de%20Freitas"> Daniel Santana de Freitas</a>, <a href="https://publications.waset.org/abstracts/search?q=Brett%20Stevens"> Brett Stevens</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Almost Perfect Nonlinear (APN) permutations with optimal resistance against differential cryptanalysis can be found in several domains. The permutation used in the standard for symmetric cryptography (the AES), for example, is based on a special kind of inversion in GF(28). Although very close to APN (2-uniform), this permutation still contains one number 4 in its differential spectrum, which means that, rigorously, it must be classified as 4-uniform. This fact motivates the search for fully APN permutations in other domains of definition. The extremely high complexity associated to this kind of problem precludes an exhaustive search for an APN permutation with 256 elements to be performed without the support of a suitable mathematical structure. On the other hand, in principle, there is nothing to indicate which mathematically structured domains can effectively help the search, and it is necessary to test several domains. In this work, the search for APN permutations in rings ℤ2×ℤ2k is investigated. After a full, exhaustive search with k=2 and k=3, all possible APN permutations in those rings were recorded, together with their differential profiles. Some very promising heuristics in these cases were collected so that, when used as a basis to prune backtracking for the same search in ℤ2×ℤ8 (search space with size 16! ≅244), just a few tenths of a second were enough to produce an APN permutation in a single CPU. Those heuristics were empirically extrapolated so that they could be applied to a backtracking search for APNs over ℤ2×ℤ16 (search space with size 32! ≅2117). The best permutations found in this search were further refined through Simulated Annealing, with a definition of neighbors suitable to this domain. The best result produced with this scheme was a 3-uniform permutation over ℤ2×ℤ16 with only 24 values equal to 3 in the differential spectrum (all the other 968 values were less than or equal 2, as it should be the case for an APN permutation). Although far from being fully APN, this result is technically better than a 4-uniform permutation and demanded only a few seconds in a single CPU. This is a strong indication that the use of mathematically structured domains, like the rings described in this work, together with heuristics based on smaller cases, can lead to dramatic cuts in the computational resources involved in the complexity of the search for APN permutations in extremely large domains. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=APN%20permutations" title="APN permutations">APN permutations</a>, <a href="https://publications.waset.org/abstracts/search?q=heuristic%20searches" title=" heuristic searches"> heuristic searches</a>, <a href="https://publications.waset.org/abstracts/search?q=symmetric%20cryptography" title=" symmetric cryptography"> symmetric cryptography</a>, <a href="https://publications.waset.org/abstracts/search?q=S-box%20design" title=" S-box design"> S-box design</a> </p> <a href="https://publications.waset.org/abstracts/145556/search-for-apn-permutations-in-rings-2-2k" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145556.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">494</span> Alumina Supported Copper-Manganese-Cobalt Catalysts for CO and VOCs Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20Kolentsova">Elitsa Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Dimitrov"> Dimitar Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Vasko%20Idakiev"> Vasko Idakiev</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20Tabakova"> Tatyana Tabakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov"> Krasimir Ivanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Formaldehyde production by selective oxidation of methanol is an important industrial process. The main by-products in the waste gas are CO and dimethyl ether (DME). The idea of this study is to combine the advantages of both Cu-Mn and Cu-Co catalytic systems by obtaining a new mixed Cu-Mn-Co catalyst with high activity and selectivity at the simultaneous oxidation of CO, methanol, and DME. Two basic Cu-Mn samples with high activity were selected for further investigation: (i) manganese-rich Cu-Mn/γ–Al2O3 catalyst with Cu/Mn molar ratio 1:5 and (ii) copper-rich Cu-Mn/γ-Al2O3 catalyst with Cu/Mn molar ratio 2:1. Manganese in these samples was replaced by cobalt in the whole concentration region, and catalytic properties were determined. The results show a general trend of decreasing the activity toward DME oxidation and increasing the activity toward CO and methanol oxidation with the increase of cobalt up to 60% for both groups of catalyst. This general trend, however, contains specific features, depending on the composition of the catalyst and the nature of the oxidized gas. The catalytic activity of the sample with Cu/(Mn+Co) molar ratio of 2:1 is gradually changed with increasing the cobalt content. The activity of the sample with Cu/(Mn+Co) molar ratio of 1: 5 passes through a maximum at 60% manganese replacement by cobalt, probably due to the formation of highly dispersed Co-based spinel structures (Co3O4 and/or MnCo2O4). In conclusion, the present study demonstrates that the Cu-Mn-Co/γ–alumina supported catalysts have enhanced activity toward CO, methanol and DME oxidation. Cu/(Mn+Co) molar ratio 1:5 and Co/Mn molar ratio 1.5 in the active component can ensure successful oxidation of CO, CH3OH and DME. The active component of the mixed Cu-Mn-Co/γ–alumina catalysts consists of at least six compounds - CuO, Co3O4, MnO2, Cu1.5Mn1.5O4, MnCo2O4 and CuCo2O4, depending on the Cu/Mn/Co molar ratio. Chemical composition strongly influences catalytic properties, this effect being quite variable with regards to the different processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu-Mn-Co%20catalysts" title="Cu-Mn-Co catalysts">Cu-Mn-Co catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidation" title=" oxidation"> oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20oxide" title=" carbon oxide"> carbon oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=VOCs" title=" VOCs"> VOCs</a> </p> <a href="https://publications.waset.org/abstracts/68064/alumina-supported-copper-manganese-cobalt-catalysts-for-co-and-vocs-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68064.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">221</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">493</span> A Safety-Door for Earthquake Disaster Prevention - Part II</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Y.%20Abebe">Daniel Y. Abebe</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaehyouk%20Choi"> Jaehyouk Choi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The safety of door has not given much attention. The main problem of doors during and after earthquake is that they are unable to be opened because deviation from its original position by the lateral load. The aim of this research is to develop and evaluate a safety door that keeps the door frame in its original position or keeps its edge angles perpendicular during and post-earthquake. Nonlinear finite element analysis was conducted in order to evaluate the structural performance and behavior of the proposed door under both monotonic and cyclic loading. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=safety-door" title="safety-door">safety-door</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquake%20disaster" title=" earthquake disaster"> earthquake disaster</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20yield%20point%20steel" title=" low yield point steel"> low yield point steel</a>, <a href="https://publications.waset.org/abstracts/search?q=passive%20energy%20dissipating%20device" title=" passive energy dissipating device"> passive energy dissipating device</a>, <a href="https://publications.waset.org/abstracts/search?q=FE%20analysis" title=" FE analysis"> FE analysis</a> </p> <a href="https://publications.waset.org/abstracts/44036/a-safety-door-for-earthquake-disaster-prevention-part-ii" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44036.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">473</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">492</span> Failure Analysis of the Gasoline Engines Injection System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jozef%20Jurcik">Jozef Jurcik</a>, <a href="https://publications.waset.org/abstracts/search?q=Miroslav%20Gutten"> Miroslav Gutten</a>, <a href="https://publications.waset.org/abstracts/search?q=Milan%20Sebok"> Milan Sebok</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Korenciak"> Daniel Korenciak</a>, <a href="https://publications.waset.org/abstracts/search?q=Jerzy%20Roj"> Jerzy Roj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents the research results of electronic fuel injection system, which can be used for diagnostics of automotive systems. In the paper is described the construction and operation of a typical fuel injection system and analyzed its electronic part. It has also been proposed method for the detection of the injector malfunction, based on the analysis of differential current or voltage characteristics. In order to detect the fault state, it is needed to use self-learning process, by the use of an appropriate self-learning algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electronic%20fuel%20injector" title="electronic fuel injector">electronic fuel injector</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnostics" title=" diagnostics"> diagnostics</a>, <a href="https://publications.waset.org/abstracts/search?q=measurement" title=" measurement"> measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=testing%20device" title=" testing device"> testing device</a> </p> <a href="https://publications.waset.org/abstracts/23302/failure-analysis-of-the-gasoline-engines-injection-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23302.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">552</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">491</span> Predictors of Clinical Failure After Endoscopic Lumbar Spine Surgery During the Initial Learning Curve</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Scherman">Daniel Scherman</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Madani"> Daniel Madani</a>, <a href="https://publications.waset.org/abstracts/search?q=Shanu%20Gambhir"> Shanu Gambhir</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcus%20Ling%20Zhixing"> Marcus Ling Zhixing</a>, <a href="https://publications.waset.org/abstracts/search?q=Yingda%20Li"> Yingda Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: This study aims to identify clinical factors that may predict failed endoscopic lumbar spine surgery to guide surgeons with patient selection during the initial learning curve. Methods: This is an Australasian prospective analysis of the first 105 patients to undergo lumbar endoscopic spine decompression by 3 surgeons. Modified MacNab outcomes, Oswestry Disability Index (ODI) and Visual Analogue Score (VAS) scores were utilized to evaluate clinical outcomes at 6 months postoperatively. Descriptive statistics and Anova t-tests were performed to measure statistically significant (p<0.05) associations between variables using GraphPad Prism v10. Results: Patients undergoing endoscopic lumbar surgery via an interlaminar or transforaminal approach have overall good/excellent modified MacNab outcomes and a significant reduction in post-operative VAS and ODI scores. Regardless of the anatomical location of disc herniations, good/excellent modified MacNab outcomes and significant reductions in VAS and ODI were reported post-operatively; however, not in patients with calcified disc herniations. Patients with central and foraminal stenosis overall reported poor/fair modified MacNab outcomes. However, there were significant reductions in VAS and ODI scores post-operatively. Patients with subarticular stenosis or an associated spondylolisthesis reported good/excellent modified MacNab outcomes and significant reductions in VAS and ODI scores post-operatively. Patients with disc herniation and concurrent degenerative stenosis had generally poor/fair modified MacNab outcomes. Conclusion: The outcomes of endoscopic spine surgery are encouraging, with a low complication and reoperation rate. However, patients with calcified disc herniations, central canal stenosis or a disc herniation with concurrent degenerative stenosis present challenges during the initial learning curve and may benefit from traditional open or other minimally invasive techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complications" title="complications">complications</a>, <a href="https://publications.waset.org/abstracts/search?q=lumbar%20disc%20herniation" title=" lumbar disc herniation"> lumbar disc herniation</a>, <a href="https://publications.waset.org/abstracts/search?q=lumbar%20endoscopic%20spine%20surgery" title=" lumbar endoscopic spine surgery"> lumbar endoscopic spine surgery</a>, <a href="https://publications.waset.org/abstracts/search?q=predictors%20of%20failed%20endoscopic%20spine%20surgery" title=" predictors of failed endoscopic spine surgery"> predictors of failed endoscopic spine surgery</a> </p> <a href="https://publications.waset.org/abstracts/181406/predictors-of-clinical-failure-after-endoscopic-lumbar-spine-surgery-during-the-initial-learning-curve" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/181406.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">154</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">490</span> The Instruction of Imagination: A Theory of Language as a Social Communication Technology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Dor">Daniel Dor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research presents a new general theory of language as a socially-constructed communication technology, designed by cultural evolution for a very specific function: the instruction of imagination. As opposed to all the other systems of intentional communication, which provide materials for the interlocutors to experience, language allows speakers to instruct their interlocutors in the process of imagining the intended meaning-instead of experiencing it. It is thus the only system that bridges the experiential gaps between speakers. This is the key to its enormous success. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=experience" title="experience">experience</a>, <a href="https://publications.waset.org/abstracts/search?q=general%20theory%20of%20language" title=" general theory of language"> general theory of language</a>, <a href="https://publications.waset.org/abstracts/search?q=imagination" title=" imagination"> imagination</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20as%20technology" title=" language as technology"> language as technology</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20essence%20of%20language" title=" social essence of language"> social essence of language</a> </p> <a href="https://publications.waset.org/abstracts/45356/the-instruction-of-imagination-a-theory-of-language-as-a-social-communication-technology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45356.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">586</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">489</span> Erotica in Ghana: Gendered Negotiations of Erotic Sexual Pleasure in Ghana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Y.%20Fiaveh">Daniel Y. Fiaveh</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20P.K.%20Okyerefo"> Michael P.K. Okyerefo</a>, <a href="https://publications.waset.org/abstracts/search?q=Clara%20K.%20Fayorsey"> Clara K. Fayorsey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although sexual pleasure is an important aspect of human sexuality, there is little knowledge on how women and men negotiate pleasure in Ghana. The paper explores women and men’s agency in negotiating sexual pleasure in an urban community in Ghana based on the narratives of 20 women and 16 men. Specifically, we explore meanings of sexual pleasure, the erotic factors that stimulate sexual pleasure, and how women and men negotiate for these factors. Women are active negotiators of stimulants of sexual pleasure based on symbolic meanings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eroticism" title="eroticism">eroticism</a>, <a href="https://publications.waset.org/abstracts/search?q=sexual%20pleasure" title=" sexual pleasure"> sexual pleasure</a>, <a href="https://publications.waset.org/abstracts/search?q=sexual%20negotiation" title=" sexual negotiation"> sexual negotiation</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghana" title=" Ghana"> Ghana</a> </p> <a href="https://publications.waset.org/abstracts/21121/erotica-in-ghana-gendered-negotiations-of-erotic-sexual-pleasure-in-ghana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21121.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">609</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">488</span> Combinatory Nutrition Supplementation: A Case of Synergy for Increasing Calcium Bioavailability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20C.%20S.%20Lim">Daniel C. S. Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Eric%20Y.%20M.%20Yeo"> Eric Y. M. Yeo</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Y.%20Tan"> W. Y. Tan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an overview of how calcium interacts with the various essential nutrients within an environment of cellular and hormonal interactions for the purpose of increasing bioavailability to the human body. One example of such interactions can be illustrated with calcium homeostasis. This paper gives an in-depth discussion on the possible interactive permutations with various nutrients and factors leading to the promotion of calcium bioavailability to the body. The review hopes to provide further insights into how calcium supplement formulations can be improved to better influence its bioavailability in the human body. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioavailability" title="bioavailability">bioavailability</a>, <a href="https://publications.waset.org/abstracts/search?q=environment%20of%20cellular%20and%20hormonal%20interactions" title=" environment of cellular and hormonal interactions"> environment of cellular and hormonal interactions</a>, <a href="https://publications.waset.org/abstracts/search?q=nutritional%20combinations" title=" nutritional combinations"> nutritional combinations</a>, <a href="https://publications.waset.org/abstracts/search?q=synergistic" title=" synergistic"> synergistic</a> </p> <a href="https://publications.waset.org/abstracts/61759/combinatory-nutrition-supplementation-a-case-of-synergy-for-increasing-calcium-bioavailability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61759.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">409</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">487</span> Geopolitics over Ukraine: International Policies and Domestic Problems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Silander">Daniel Silander</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article explores the EU Initiated European Neighborhood Policy (ENP) towards Ukraine. It also explores Russian geopolitics in the region. We argue that Ukraine is sandwiched between two regional powers in the EU and Russia. By analyzing EU democracy promotion towards Ukraine and neighbors, we assess a weak EU normative capacity. Instead of building a “ring of friends”, as argued by the EU Commission, in an enlarged democratic community, the EU has achieved poor democratic records in Ukraine which opened for a revival of Russia in the region and causes the international crisis over Crime of 2014. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=regional%20neighborhood%20policy" title="regional neighborhood policy">regional neighborhood policy</a>, <a href="https://publications.waset.org/abstracts/search?q=European%20Union" title=" European Union"> European Union</a>, <a href="https://publications.waset.org/abstracts/search?q=Russia" title=" Russia"> Russia</a>, <a href="https://publications.waset.org/abstracts/search?q=Ukraine" title=" Ukraine"> Ukraine</a>, <a href="https://publications.waset.org/abstracts/search?q=domestic%20elites" title=" domestic elites"> domestic elites</a> </p> <a href="https://publications.waset.org/abstracts/9555/geopolitics-over-ukraine-international-policies-and-domestic-problems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9555.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">524</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">486</span> Composite Components Manufacturing in SAE Formula Student, a Case Study of AGH Racing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hanna%20Faron">Hanna Faron</a>, <a href="https://publications.waset.org/abstracts/search?q=Wojciech%20Marcinkowski"> Wojciech Marcinkowski</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Prusak"> Daniel Prusak</a>, <a href="https://publications.waset.org/abstracts/search?q=W%C5%82adys%C5%82aw%20Hamiga"> Władysław Hamiga</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Interest in composite materials comes out of two basic premises: their supreme mechanical and strength properties,combined with a small specific weight. Origin and evolution of modern composite materials bonds with development of manufacturing of synthetic fibers, which have begun during Second World War. Main condition to achieve intended properties of composite materials is proper bonding of reinforcing layer with appropriate adhesive in manufacturing process. It is one of the fundamental quality evaluation criterion of fabrication processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SAE" title="SAE">SAE</a>, <a href="https://publications.waset.org/abstracts/search?q=formula%20student" title=" formula student"> formula student</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20materials" title=" composite materials"> composite materials</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20fiber" title=" carbon fiber"> carbon fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=Aramid%20fiber" title=" Aramid fiber"> Aramid fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20wire%20cutter" title=" hot wire cutter"> hot wire cutter</a> </p> <a href="https://publications.waset.org/abstracts/32986/composite-components-manufacturing-in-sae-formula-student-a-case-study-of-agh-racing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32986.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">514</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">485</span> Neural Rendering Applied to Confocal Microscopy Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Li">Daniel Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present a novel application of neural rendering methods to confocal microscopy. Neural rendering and implicit neural representations have developed at a remarkable pace, and are prevalent in modern 3D computer vision literature. However, they have not yet been applied to optical microscopy, an important imaging field where 3D volume information may be heavily sought after. In this paper, we employ neural rendering on confocal microscopy focus stack data and share the results. We highlight the benefits and potential of adding neural rendering to the toolkit of microscopy image processing techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neural%20rendering" title="neural rendering">neural rendering</a>, <a href="https://publications.waset.org/abstracts/search?q=implicit%20neural%20representations" title=" implicit neural representations"> implicit neural representations</a>, <a href="https://publications.waset.org/abstracts/search?q=confocal%20microscopy" title=" confocal microscopy"> confocal microscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20image%20processing" title=" medical image processing"> medical image processing</a> </p> <a href="https://publications.waset.org/abstracts/153909/neural-rendering-applied-to-confocal-microscopy-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153909.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">658</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">484</span> National Assessment for Schools in Saudi Arabia: Score Reliability and Plausible Values</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dimiter%20M.%20Dimitrov">Dimiter M. Dimitrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20Sadaawi"> Abdullah Sadaawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The National Assessment for Schools (NAFS) in Saudi Arabia consists of standardized tests in Mathematics, Reading, and Science for school grade levels 3, 6, and 9. One main goal is to classify students into four categories of NAFS performance (minimal, basic, proficient, and advanced) by schools and the entire national sample. The NAFS scoring and equating is performed on a bounded scale (D-scale: ranging from 0 to 1) in the framework of the recently developed “D-scoring method of measurement.” The specificity of the NAFS measurement framework and data complexity presented both challenges and opportunities to (a) the estimation of score reliability for schools, (b) setting cut-scores for the classification of students into categories of performance, and (c) generating plausible values for distributions of student performance on the D-scale. The estimation of score reliability at the school level was performed in the framework of generalizability theory (GT), with students “nested” within schools and test items “nested” within test forms. The GT design was executed via a multilevel modeling syntax code in R. Cut-scores (on the D-scale) for the classification of students into performance categories was derived via a recently developed method of standard setting, referred to as “Response Vector for Mastery” (RVM) method. For each school, the classification of students into categories of NAFS performance was based on distributions of plausible values for the students’ scores on NAFS tests by grade level (3, 6, and 9) and subject (Mathematics, Reading, and Science). Plausible values (on the D-scale) for each individual student were generated via random selection from a statistical logit-normal distribution with parameters derived from the student’s D-score and its conditional standard error, SE(D). All procedures related to D-scoring, equating, generating plausible values, and classification of students into performance levels were executed via a computer program in R developed for the purpose of NAFS data analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=large-scale%20assessment" title="large-scale assessment">large-scale assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability" title=" reliability"> reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=generalizability%20theory" title=" generalizability theory"> generalizability theory</a>, <a href="https://publications.waset.org/abstracts/search?q=plausible%20values" title=" plausible values"> plausible values</a> </p> <a href="https://publications.waset.org/abstracts/184074/national-assessment-for-schools-in-saudi-arabia-score-reliability-and-plausible-values" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184074.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">18</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">483</span> Development and Evaluation of Removable Shear Link with Perforated Web</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Y.%20Abebe">Daniel Y. Abebe</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaehyouk%20Choi"> Jaehyouk Choi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this paper is to investigate, through an analytical study, the behavior of both stiffened and un-stiffened removable shear link with perforated web considering different number and size of web openings. Removable shear link with perforated web is a novel shear link beam proposed to be used in eccentrically braced frame (EBF). The proposed link overcomes the difficulties during construction slab due to less cross-sectional areas of the link to control the plastic deformation on the conventional EBF with removable shear link. Finite element analyses were conducted under both cyclic and monotonic loading and from the results obtained design equations are developed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eccentrically%20braced%20frame" title="eccentrically braced frame">eccentrically braced frame</a>, <a href="https://publications.waset.org/abstracts/search?q=removable%20shear%20link" title=" removable shear link"> removable shear link</a>, <a href="https://publications.waset.org/abstracts/search?q=perforated%20web" title=" perforated web"> perforated web</a>, <a href="https://publications.waset.org/abstracts/search?q=non-linear%20FE%20analysis" title=" non-linear FE analysis"> non-linear FE analysis</a> </p> <a href="https://publications.waset.org/abstracts/39370/development-and-evaluation-of-removable-shear-link-with-perforated-web" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39370.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">362</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">482</span> Evaluation of the exIWO Algorithm Based on the Traveling Salesman Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Kostrzewa">Daniel Kostrzewa</a>, <a href="https://publications.waset.org/abstracts/search?q=Henryk%20Josi%C5%84ski"> Henryk Josiński</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The expanded Invasive Weed Optimization algorithm (exIWO) is an optimization metaheuristic modelled on the original IWO version created by the researchers from the University of Tehran. The authors of the present paper have extended the exIWO algorithm introducing a set of both deterministic and non-deterministic strategies of individuals’ selection. The goal of the project was to evaluate the exIWO by testing its usefulness for solving some test instances of the traveling salesman problem (TSP) taken from the TSPLIB collection which allows comparing the experimental results with optimal values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=expanded%20invasive%20weed%20optimization%20algorithm%20%28exIWO%29" title="expanded invasive weed optimization algorithm (exIWO)">expanded invasive weed optimization algorithm (exIWO)</a>, <a href="https://publications.waset.org/abstracts/search?q=traveling%20salesman%20problem%20%28TSP%29" title=" traveling salesman problem (TSP)"> traveling salesman problem (TSP)</a>, <a href="https://publications.waset.org/abstracts/search?q=heuristic%20approach" title=" heuristic approach"> heuristic approach</a>, <a href="https://publications.waset.org/abstracts/search?q=inversion%20operator" title=" inversion operator"> inversion operator</a> </p> <a href="https://publications.waset.org/abstracts/9442/evaluation-of-the-exiwo-algorithm-based-on-the-traveling-salesman-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9442.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">835</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Daniel%20%20Dimitrov&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Daniel%20%20Dimitrov&page=3">3</a></li> <li class="page-item"><a class="page-link" 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