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maternal-fetal bonding</title> <meta name="description" content="Search results for: maternal-fetal bonding"> <meta name="keywords" content="maternal-fetal bonding"> <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 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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="maternal-fetal bonding"> <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> 432</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: maternal-fetal bonding</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">372</span> Low-Temperature Silanization of Medical Vials: Chemical Bonding and Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuanping%20Yang">Yuanping Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruolin%20Zhou"> Ruolin Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Xingyu%20Liu"> Xingyu Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Lianbin%20Wu"> Lianbin Wu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on the challenges of silanization of pharmaceutical glass packaging materials, the silicone oil high-temperature baking method consumes a lot of energy; silicone oil is generally physically adsorbed on the inner surface of the medical vials, leading to protein adsorption on the surface of the silicone oil and fall off, so that the number of particles in the drug solution increases, which brings potential risks to people. In this paper, a new silanizing method is proposed. High-efficiency silanization is achieved by grafting trimethylsilyl groups to the inner surface of medical vials by chemical bond at low temperatures. The inner wall of the vial successfully obtained stable hydrophobicity, and the water contact Angle of the surface reached 100°~110°. With the increase of silicified reagent concentration, the water resistance of corresponding treatment vials increased gradually. This treatment can effectively reduce the risk of pH value increase and sodium ion leaching. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=low-temperature%20silanization" title="low-temperature silanization">low-temperature silanization</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20vials" title=" medical vials"> medical vials</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20bonding" title=" chemical bonding"> chemical bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrophobicity" title=" hydrophobicity"> hydrophobicity</a> </p> <a href="https://publications.waset.org/abstracts/164544/low-temperature-silanization-of-medical-vials-chemical-bonding-and-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164544.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">81</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">371</span> The Relation Between Social Capital and Trust with Social Network Analysis (SNA)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safak%20Baykal">Safak Baykal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study is analyzing the relationship between self leadership and social capital of people with using Social Network Analysis. In this study, two aspects of social capital will be focused: bonding, homophilous social capital (BoSC) which implies better, strong, dense or closed network ties, and bridging, heterophilous social capital (BrSC) which implies weak ties, bridging the structural holes. The other concept of the study is Trust (Tr), namely interpersonal trust, willingness to ascribe good intentions to and have confidence in the words and actions of other people. In this study, the sample group, 61 people, was selected from a private firm from the defense industry. The relation between BoSC/BrSC and Tr is shown by using Social Network Analysis (SNA) and statistical analysis with Likert type-questionnaire. The results of the analysis show the Cronbach’s alpha value is 0.73 and social capital values (BoSC/BrSC) is highly correlated with Tr values of the people. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bonding%20social%20capital" title="bonding social capital">bonding social capital</a>, <a href="https://publications.waset.org/abstracts/search?q=bridging%20social%20capital" title=" bridging social capital"> bridging social capital</a>, <a href="https://publications.waset.org/abstracts/search?q=trust" title=" trust"> trust</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20network%20analysis%20%28SNA%29" title=" social network analysis (SNA)"> social network analysis (SNA)</a> </p> <a href="https://publications.waset.org/abstracts/35306/the-relation-between-social-capital-and-trust-with-social-network-analysis-sna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35306.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">529</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">370</span> Effect of Laser Input Energy on the Laser Joining of Polyethylene Terephthalate to Titanium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20J.%20Chen">Y. J. Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20M.%20Yue"> T. M. Yue</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20N.%20Guo"> Z. N. Guo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reports the effects of laser energy on the characteristics of bubbles generated in the weld zone and the formation of new chemical bonds at the Polyethylene Terephthalate (PET)/Ti joint interface in laser joining of PET to Ti. The samples were produced by using different laser energies ranging from 1.5 J – 6 J in steps of 1.5 J, while all other joining parameters remained unchanged. The types of chemical bonding at the joint interface were analysed by the x-ray photoelectron spectroscopy (XPS) depth-profiling method. The results show that the characteristics of the bubbles and the thickness of the chemically bonded interface, which contains the laser generated bonds of Ti–C and Ti–O, increase markedly with increasing laser energy input. The tensile failure load of the joint depends on the combined effect of the amount and distribution of the bubbles formed and the chemical bonding intensity of the joint interface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=laser%20direct%20joining" title="laser direct joining">laser direct joining</a>, <a href="https://publications.waset.org/abstracts/search?q=Ti%2FPET%20interface" title=" Ti/PET interface"> Ti/PET interface</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20energy" title=" laser energy"> laser energy</a>, <a href="https://publications.waset.org/abstracts/search?q=XPS%20depth%20profiling" title=" XPS depth profiling"> XPS depth profiling</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20bond" title=" chemical bond"> chemical bond</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20failure%20load" title=" tensile failure load"> tensile failure load</a> </p> <a href="https://publications.waset.org/abstracts/52818/effect-of-laser-input-energy-on-the-laser-joining-of-polyethylene-terephthalate-to-titanium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52818.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">211</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">369</span> How Do You Blow Off Steam? : The Impact of Therapeutic Catharsis Seeking, Self-Construal, and Social Capital in Gaming Context</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hye%20Rim%20Lee">Hye Rim Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Eui%20Jun%20Jeong"> Eui Jun Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Woo%20Kim"> Ju Woo Kim </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study will examine how the therapeutic factors (therapeutic catharsis-seeking and game-efficacy of the game player) and self-construal factors (independent and interdependent self-construal of the game player) as well as social capital factors (bonding and bridging social capital of the game player) affect trait aggression in the game. Results show that both therapeutic catharsis-seeking and game self-efficacy are particularly important to the players since they cause the game players’ aggressive tendencies to be greatly diminished. Independent self-construal reduces the level of the players’ aggression. Interestingly enough, the bonding social capital enhances the level of the players’ aggression, while individuals with bridging social capital did not show any significant effects. The results and implications will be discussed herein. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aggression%20catharsis" title="aggression catharsis">aggression catharsis</a>, <a href="https://publications.waset.org/abstracts/search?q=game%20self-efficacy" title=" game self-efficacy"> game self-efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=self-construal" title=" self-construal"> self-construal</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20capital" title=" social capital"> social capital</a>, <a href="https://publications.waset.org/abstracts/search?q=therapeutic%20catharsis%20seeking" title=" therapeutic catharsis seeking"> therapeutic catharsis seeking</a> </p> <a href="https://publications.waset.org/abstracts/30921/how-do-you-blow-off-steam-the-impact-of-therapeutic-catharsis-seeking-self-construal-and-social-capital-in-gaming-context" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30921.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">523</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">368</span> Electro-Mechanical Response and Engineering Properties of Piezocomposite with Imperfect Interface</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rattanan%20Tippayaphalapholgul">Rattanan Tippayaphalapholgul</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasothorn%20Sapsathiarn"> Yasothorn Sapsathiarn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Composites of piezoelectric materials are widely use in practical applications such as nondestructive testing devices, smart adaptive structures and medical devices. A thorough understanding of coupled electro-elastic response and properties of piezocomposite are crucial for the development and design of piezoelectric composite materials used in advanced applications. The micromechanics analysis is employed in this paper to determine the response and engineering properties of the piezocomposite. A mechanical imperfect interface bonding between piezoelectric inclusion and polymer matrix is taken into consideration in the analysis. The micromechanics analysis is based on the Boundary Element Method (BEM) together with the periodic micro-field micromechanics theory. A selected set of numerical results is presented to investigate the influence of volume ratio and interface bonding condition on effective piezocomposite material coefficients and portray basic features of coupled electroelastic response within the domain of piezocomposite unit cell. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=effective%20engineering%20properties" title="effective engineering properties">effective engineering properties</a>, <a href="https://publications.waset.org/abstracts/search?q=electroelastic%20response" title=" electroelastic response"> electroelastic response</a>, <a href="https://publications.waset.org/abstracts/search?q=imperfect%20interface" title=" imperfect interface"> imperfect interface</a>, <a href="https://publications.waset.org/abstracts/search?q=piezocomposite" title=" piezocomposite"> piezocomposite</a> </p> <a href="https://publications.waset.org/abstracts/43452/electro-mechanical-response-and-engineering-properties-of-piezocomposite-with-imperfect-interface" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43452.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">231</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">367</span> Tribological Study of TiC Powder Cladding on 6061 Aluminum Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuan-Ching%20Lin">Yuan-Ching Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sin-Yu%20Chen"> Sin-Yu Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Pei-Yu%20Wu"> Pei-Yu Wu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study reports the improvement in the wear performance of A6061 aluminum alloy clad with mixed powders of titanium carbide (TiC), copper (Cu) and aluminum (Al) using the gas tungsten arc welding (GTAW) method. The wear performance of the A6061 clad layers was evaluated by performing pin-on-disc mode wear test. Experimental results clearly indicate an enhancement in the hardness of the clad layer by about two times that of the A6061 substrate without cladding. Wear test demonstrated a significant improvement in the wear performance of the clad layer when compared with the A6061 substrate without cladding. Moreover, the interface between the clad layer and the A6061 substrate exhibited superior metallurgical bonding. Due to this bonding, the clad layer did not spall during the wear test; as such, massive wear loss was prevented. Additionally, massive oxidized particulate debris was generated on the worn surface during the wear test; this resulted in three-body abrasive wear and reduced the wear behavior of the clad surface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GTAW%E3%80%81A6061%20aluminum%20alloy" title="GTAW、A6061 aluminum alloy">GTAW、A6061 aluminum alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=%E3%80%81surface%20modification" title="、surface modification">、surface modification</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20study" title=" tribological study"> tribological study</a>, <a href="https://publications.waset.org/abstracts/search?q=TiC%20powder%20cladding" title=" TiC powder cladding"> TiC powder cladding</a> </p> <a href="https://publications.waset.org/abstracts/25409/tribological-study-of-tic-powder-cladding-on-6061-aluminum-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25409.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">463</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">366</span> Investigation on Pull-Out-Behavior and Interface Critical Parameters of Polymeric Fibers Embedded in Concrete and Their Correlation with Particular Fiber Characteristics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michael%20Sigruener">Michael Sigruener</a>, <a href="https://publications.waset.org/abstracts/search?q=Dirk%20Muscat"> Dirk Muscat</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicole%20Struebbe"> Nicole Struebbe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fiber reinforcement is a state of the art to enhance mechanical properties in plastics. For concrete and civil engineering, steel reinforcements are commonly used. Steel reinforcements show disadvantages in their chemical resistance and weight, whereas polymer fibers' major problems are in fiber-matrix adhesion and mechanical properties. In spite of these facts, longevity and easy handling, as well as chemical resistance motivate researches to develop a polymeric material for fiber reinforced concrete. Adhesion and interfacial mechanism in fiber-polymer-composites are already studied thoroughly. For polymer fibers used as concrete reinforcement, the bonding behavior still requires a deeper investigation. Therefore, several differing polymers (e.g., polypropylene (PP), polyamide 6 (PA6) and polyetheretherketone (PEEK)) were spun into fibers via single screw extrusion and monoaxial stretching. Fibers then were embedded in a concrete matrix, and Single-Fiber-Pull-Out-Tests (SFPT) were conducted to investigate bonding characteristics and microstructural interface of the composite. Differences in maximum pull-out-force, displacement and slope of the linear part of force vs displacement-function, which depicts the adhesion strength and the ductility of the interfacial bond were studied. In SFPT fiber, debonding is an inhomogeneous process, where the combination of interfacial bonding and friction mechanisms add up to a resulting value. Therefore, correlations between polymeric properties and pull-out-mechanisms have to be emphasized. To investigate these correlations, all fibers were introduced to a series of analysis such as differential scanning calorimetry (DSC), contact angle measurement, surface roughness and hardness analysis, tensile testing and scanning electron microscope (SEM). Of each polymer, smooth and abraded fibers were tested, first to simulate the abrasion and damage caused by a concrete mixing process and secondly to estimate the influence of mechanical anchoring of rough surfaces. In general, abraded fibers showed a significant increase in maximum pull-out-force due to better mechanical anchoring. Friction processes therefore play a major role to increase the maximum pull-out-force. The polymer hardness affects the tribological behavior and polymers with high hardness lead to lower surface roughness verified by SEM and surface roughness measurements. This concludes into a decreased maximum pull-out-force for hard polymers. High surface energy polymers show better interfacial bonding strength in general, which coincides with the conducted SFPT investigation. Polymers such as PEEK or PA6 show higher bonding strength in smooth and roughened fibers, revealed through high pull-out-force and concrete particles bonded on the fiber surface pictured via SEM analysis. The surface energy divides into dispersive and polar part, at which the slope is correlating with the polar part. Only polar polymers increase their SFPT-function slope due to better wetting abilities when showing a higher bonding area through rough surfaces. Hence, the maximum force and the bonding strength of an embedded fiber is a function of polarity, hardness, and consequently surface roughness. Other properties such as crystallinity or tensile strength do not affect bonding behavior. Through the conducted analysis, it is now feasible to understand and resolve different effects in pull-out-behavior step-by-step based on the polymer properties itself. This investigation developed a roadmap on how to engineer high adhering polymeric materials for fiber reinforcement of concrete. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber-matrix%20interface" title="fiber-matrix interface">fiber-matrix interface</a>, <a href="https://publications.waset.org/abstracts/search?q=polymeric%20fibers" title=" polymeric fibers"> polymeric fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20reinforced%20concrete" title=" fiber reinforced concrete"> fiber reinforced concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20fiber%20pull-out%20test" title=" single fiber pull-out test"> single fiber pull-out test</a> </p> <a href="https://publications.waset.org/abstracts/111301/investigation-on-pull-out-behavior-and-interface-critical-parameters-of-polymeric-fibers-embedded-in-concrete-and-their-correlation-with-particular-fiber-characteristics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111301.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">113</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">365</span> Influence of [Emim][OAc] and Water on Gelatinization Process and Interactions with Starch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shajaratuldur%20Ismail">Shajaratuldur Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurlidia%20Mansor"> Nurlidia Mansor</a>, <a href="https://publications.waset.org/abstracts/search?q=Zakaria%20Man"> Zakaria Man</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermoplastic starch (TPS) plasticized by 1-ethyl-3-methylimidazolium acetate [Emim][OAc] were obtained through gelatinization process. The gelatinization process occurred in the presence of water and [Emim][OAc] as plasticizer at high temperature (90˚C). The influence of [Emim][OAc] and water on the gelatinization and interactions with starch have been studied over a range of compositions. The homogenous mass was obtained for the samples containing 35, 40 and 43.5 % of water contents which showed that water plays important role in gelatinization process. Detailed IR spectroscopy analysis showed decrease in hydrogen bonding intensity and strong interaction between acetate anion in [Emim][OAc] and starch hydroxyl groups in the presence of [Emim][OAc]. Starch-[Emim][OAc]-water mixture at 10-3-8.7 presented homogenous mass, less hydrogen bonding intensity and strong interaction between acetate anion in [Emim][OAc] and starch hydroxyl groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=starch" title="starch">starch</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=1-ethyl-3-methylimidazolium%20acetate" title=" 1-ethyl-3-methylimidazolium acetate"> 1-ethyl-3-methylimidazolium acetate</a>, <a href="https://publications.waset.org/abstracts/search?q=plasticizer" title=" plasticizer"> plasticizer</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization" title=" gelatinization"> gelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=IR%20spectroscopy" title=" IR spectroscopy"> IR spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/47028/influence-of-emimoac-and-water-on-gelatinization-process-and-interactions-with-starch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47028.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">229</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">364</span> Adherence Induced Formwork Removal in Small-Scale Pull-Off Tensile Tests</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Spitz">Nicolas Spitz</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Coniglio"> Nicolas Coniglio</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20El%20Mansori"> Mohamed El Mansori</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Montagne"> Alex Montagne</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabeur%20Mezghani"> Sabeur Mezghani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays buildings' construction is performed by pouring concrete into molds referred to as formworks that are usually prefabricated metallic modules. Defects such as stripping may possibly form during the removal of the formwork if the interfacial bonding between the concrete and the formwork is high. A new pull-off tensile test was developed in our laboratory to simulate small-scale formwork removals. The concrete-to-formwork adherence force was measured on bare and coated formworks with different surface signatures. The used concrete was a mixture largely used on building sites and contains CEM I Portland cement and calcareous filler. The concrete surface appearance and the type of failures at the concrete-formwork interface have been investigated. The originality of this near-to-surface test was to compare the laboratory-measured adherence forces to the on-site observations. Based upon the small-scale laboratory test results, functional formwork specifications with low adherence to concrete was proposed in terms of superficial signature characteristics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=concrete-formwork%20adherence" title="concrete-formwork adherence">concrete-formwork adherence</a>, <a href="https://publications.waset.org/abstracts/search?q=interfacial%20bonding" title=" interfacial bonding"> interfacial bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=skin%20formwork%20functionality" title=" skin formwork functionality"> skin formwork functionality</a>, <a href="https://publications.waset.org/abstracts/search?q=small-scale%20pull-off%20tensile%20test" title=" small-scale pull-off tensile test"> small-scale pull-off tensile test</a> </p> <a href="https://publications.waset.org/abstracts/81360/adherence-induced-formwork-removal-in-small-scale-pull-off-tensile-tests" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81360.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">245</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">363</span> Gamma Irradiation Effect on Structural and Optical Properties of Bismuth-Boro-Tellurite Glasses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azuraida%20Amat">Azuraida Amat</a>, <a href="https://publications.waset.org/abstracts/search?q=Halimah%20Mohamed%20Kamari"> Halimah Mohamed Kamari</a>, <a href="https://publications.waset.org/abstracts/search?q=Che%20Azurahanim%20Che%20Abdullah"> Che Azurahanim Che Abdullah</a>, <a href="https://publications.waset.org/abstracts/search?q=Ishak%20Mansor"> Ishak Mansor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The changes of the optical and structural properties of Bismuth-Boro-Tellurite glasses pre and post gamma irradiation were studied. Six glass samples, with different compositions [(TeO2)0.7 (B2O3)0.3]1-x (Bi2O3)x prepared by melt quenching method were irradiated with 25kGy gamma radiation at room temperature. The Fourier Transform Infrared Spectroscopy (FTIR) was used to explore the structural bonding in the prepared glass samples due to exposure, while UV-VIS Spectrophotometer was used to evaluate the changes in the optical properties before and after irradiation. Gamma irradiation causes a profound changes in the peak intensity as shown by FTIR spectra which is due to the breaking of the network bonding. Before gamma irradiation, the optical band gap, Eg value decreased from 2.44 eV to 2.15 eV with the addition of Bismuth content. The value kept decreasing (from 2.18 eV to 2.00 eV) following exposure to gamma radiation due to the increase of non-bridging oxygen (NBO) and the increase of defects in the glass. In conclusion, the glass with high content of Bi2O3 (0.30Bi) give the smallest Eg and show less changes in FTIR spectra after gamma irradiation, which indicate that this glass is more resistant to gamma radiation compared to other glasses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=boro-tellurite" title="boro-tellurite">boro-tellurite</a>, <a href="https://publications.waset.org/abstracts/search?q=bismuth" title=" bismuth"> bismuth</a>, <a href="https://publications.waset.org/abstracts/search?q=gamma%20radiation" title=" gamma radiation"> gamma radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20properties" title=" optical properties"> optical properties</a> </p> <a href="https://publications.waset.org/abstracts/25457/gamma-irradiation-effect-on-structural-and-optical-properties-of-bismuth-boro-tellurite-glasses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25457.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">427</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">362</span> Algorithmic Generation of Carbon Nanochimneys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sorin%20Muraru">Sorin Muraru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Computational generation of carbon nanostructures is still a very demanding process. This work provides an alternative to manual molecular modeling through an algorithm meant to automate the design of such structures. Specifically, carbon nanochimneys are obtained through the bonding of a carbon nanotube with the smaller edge of an open carbon nanocone. The methods of connection rely on mathematical, geometrical and chemical properties. Non-hexagonal rings are used in order to perform the correct bonding of dangling bonds. Once obtained, they are useful for thermal transport, gas storage or other applications such as gas separation. The carbon nanochimneys are meant to produce a less steep connection between structures such as the carbon nanotube and graphene sheet, as in the pillared graphene, but can also provide functionality on its own. The method relies on connecting dangling bonds at the edges of the two carbon nanostructures, employing the use of two different types of auxiliary structures on a case-by-case basis. The code is implemented in Python 3.7 and generates an output file in the .pdb format containing all the system’s coordinates. Acknowledgment: This work was supported by a grant of the Executive Agency for Higher Education, Research, Development and innovation funding (UEFISCDI), project number PN-III-P1-1.1-TE-2016-24-2, contract TE 122/2018. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanochimneys" title="carbon nanochimneys">carbon nanochimneys</a>, <a href="https://publications.waset.org/abstracts/search?q=computational" title=" computational"> computational</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanotube" title=" carbon nanotube"> carbon nanotube</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanocone" title=" carbon nanocone"> carbon nanocone</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20modeling" title=" molecular modeling"> molecular modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanostructures" title=" carbon nanostructures"> carbon nanostructures</a> </p> <a href="https://publications.waset.org/abstracts/142571/algorithmic-generation-of-carbon-nanochimneys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142571.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">361</span> Superior Wear Performance of CoCrNi Matrix Composite Reinforced with Quasi-Continuously Networked Graphene Nanosheets and In-Situ Carbide</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wenting%20Ye">Wenting Ye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The biological materials evolved in nature generally exhibit interpenetrating network structures, which may offer useful inspiration for the architectural design of wear-resistant composites. Here, a strategy for designing self-lubricating medium entropy alloy (MEA) composites with high strength and excellent anti-wear performance was proposed through quasi-continuously networked in-situ carbides and graphene nanosheets. The discontinuous coating of graphene on the MEA powder surface inhibits continuous metallurgy bonding of the MEA powders during sintering, generating the typical quasi-continuously networked architecture. A good combination of mechanical properties with high fracture strength over 2 GPa and large compressive plasticity over 30% benefits from metallurgy bonding that prevents crack initiation and extension. The wear rate of an order of 10-6 m3N-1m-1 ascribing to an amorphous-crystalline nanocomposite surface, tribo-film induced by graphene, as well as the gradient worn subsurface during friction was achieved by the MEA composite, which is an order of magnitude lower than the unreinforced MEA matrix. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=in-situ%20carbide" title="in-situ carbide">in-situ carbide</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20behavior" title=" tribological behavior"> tribological behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=medium%20entropy%20alloy%20matrix%20composite" title=" medium entropy alloy matrix composite"> medium entropy alloy matrix composite</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene" title=" graphene"> graphene</a> </p> <a href="https://publications.waset.org/abstracts/187717/superior-wear-performance-of-cocrni-matrix-composite-reinforced-with-quasi-continuously-networked-graphene-nanosheets-and-in-situ-carbide" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187717.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">31</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">360</span> Effect of Pressure and Glue Spread on the Bonding Properties of CLT Panels Made from Low-Grade Hardwood</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sumanta%20Das">Sumanta Das</a>, <a href="https://publications.waset.org/abstracts/search?q=Miroslav%20Ga%C5%A1par%C3%ADk"> Miroslav Gašparík</a>, <a href="https://publications.waset.org/abstracts/search?q=Tom%C3%A1%C5%A1%20Kytka"> Tomáš Kytka</a>, <a href="https://publications.waset.org/abstracts/search?q=Anil%20Kumar%20Sethy"> Anil Kumar Sethy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this modern century, Cross-laminated timber (CLT) evolved as an excellent material for building and high load-bearing structural applications worldwide. CLT is produced mainly from softwoods such as Norway spruce, White fir, Scots pine, European larch, Douglas fir, and Swiss stone pine. The use of hardwoods in CLT production is still at an early stage, and the utilization of hardwoods is expected to provide the opportunity for obtaining higher bending stiffness and shear resistance to CLT panels. In load-bearing structures like CLT, bonding is an important character that is needed to evaluate. One particular issue with using hardwood lumber in CLT panels is that it is often more challenging to achieve a strong, durable adhesive bond. Several researches in the past years have already evaluated the bonding properties of CLT panels from hardwood both from higher and lower densities. This research aims to identify the effect of pressure and glue spread and evaluate which poplar lumber characteristics affect adhesive bond quality. Three-layered CLT panels were prepared from poplar wood with one-component polyurethane (PUR) adhesive by applying pressure of 0.6 N/mm2 and 1 N/mm2 with a glue spread rate of 160 and 180 g/m2. The delamination and block shear tests were carried out as per EN 16351:2015, and the wood failure percentage was also evaluated. The results revealed that glue spread rate and applied pressure significantly influenced both the shear bond strength and wood failure percentage of the CLT. However, samples with lower pressure 0.6 N/mm2 and less glue spread rate showed delamination, and in samples with higher pressure 1 N/mm2 and higher glue spread rate, no delamination was observed. All the properties determined by this study met the minimum requirement mentioned in EN 16351:2015 standard. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cross-laminated%20timber" title="cross-laminated timber">cross-laminated timber</a>, <a href="https://publications.waset.org/abstracts/search?q=delamination" title=" delamination"> delamination</a>, <a href="https://publications.waset.org/abstracts/search?q=glue%20spread%20rate" title=" glue spread rate"> glue spread rate</a>, <a href="https://publications.waset.org/abstracts/search?q=poplar" title=" poplar"> poplar</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure" title=" pressure"> pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=PUR" title=" PUR"> PUR</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20strength" title=" shear strength"> shear strength</a>, <a href="https://publications.waset.org/abstracts/search?q=wood%20failure%20percentage" title=" wood failure percentage"> wood failure percentage</a> </p> <a href="https://publications.waset.org/abstracts/143583/effect-of-pressure-and-glue-spread-on-the-bonding-properties-of-clt-panels-made-from-low-grade-hardwood" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143583.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">162</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">359</span> Modification of Polyurethane Adhesive for OSB/EPS Panel Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Stepan%20Hysek">Stepan Hysek</a>, <a href="https://publications.waset.org/abstracts/search?q=Premysl%20Sedivka"> Premysl Sedivka</a>, <a href="https://publications.waset.org/abstracts/search?q=Petra%20Gajdacova"> Petra Gajdacova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, structural composite materials contain cellulose-based particles (wood chips, fibers) bonded with synthetic adhesives containing formaldehyde (urea-formaldehyde, melamine-formaldehyde adhesives and others). Formaldehyde is classified as a volatile substance with provable carcinogenic effects on live organisms, and an emphasis has been put on continual reduction of its content in products. One potential solution could be the development of an agglomerated material which does not contain adhesives releasing formaldehyde. A potential alternative to formaldehyde-based adhesives could be polyurethane adhesives containing no formaldehyde. Such adhesives have been increasingly used in applications where a few years ago formaldehyde-based adhesives were the only option. Advantages of polyurethane adhesive in comparison with others in the industry include the high elasticity of the joint, which is able to resist dynamic stress, and resistance to increased humidity and climatic effects. These properties predict polyurethane adhesives to be used in OSB/EPS panel production. The objective of this paper is to develop an adhesive for bonding of sandwich panels made of material based on wood and other materials, e.g. SIP) and optimization of input components in order to obtain an adhesive with required properties suitable for bonding of the given materials without involvement of formaldehyde. It was found that polyurethane recyclate as a filler is suitable modification of polyurethane adhesive and results have clearly revealed that modified adhesive can be used for OSB/EPS panel production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adhesive" title="adhesive">adhesive</a>, <a href="https://publications.waset.org/abstracts/search?q=polyurethane" title=" polyurethane"> polyurethane</a>, <a href="https://publications.waset.org/abstracts/search?q=recyclate" title=" recyclate"> recyclate</a>, <a href="https://publications.waset.org/abstracts/search?q=SIP" title=" SIP"> SIP</a> </p> <a href="https://publications.waset.org/abstracts/72185/modification-of-polyurethane-adhesive-for-osbeps-panel-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72185.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">275</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">358</span> Lifetime Attachment: Adult Daughters Attachment to Their Old Mothers </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meltem%20Anafarta%20%C5%9Eenda%C4%9F">Meltem Anafarta Şendağ</a>, <a href="https://publications.waset.org/abstracts/search?q=Funda%20Kutlu"> Funda Kutlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Attachment theory has some major postulates that direct attention of psychologists from many different domains. First, the theory suggests that attachment is a lifetime process. This means that every human being from cradle to grave needs someone stronger to depend on in times of stress. Second, the attachment is a dynamic process and as one goes through developmental stages it is being transferred from one figure to another (friends, romantic partners). Third, the quality of attachment relationships later in time directly affected by the earliest attachment relationship established between the mother and the infant. Depending on these postulates, attachment literature focuses mostly on mother – child attachment during childhood and romantic relationship during adulthood. However, although romantic partners are important attachment figures in adults’ life, parents are not dropped out from the attachment hierarchy but they keep being important attachment figures. Despite the fact that parents could still be an important figure in adults’ life, adult – parent attachment is overlooked in the literature. Accordingly, this study focuses on adult daughters’ current attachment to their old mothers in relation with early parental bonding and current attachment to husbands. Participants of the study were 383 adult women (Average age = 40, ranging between 23 and 70) whose mothers were still alive and who were married at the time of the study. Participants were completed Adult Attachment Scale, Parental Bonding Instrument, and Experiences in Close Relationship – II together with demographic questionnaire. Results revealed that daughters’ attachment to their mothers weakens as they get older, have more children, and have longer marriages. Stronger attachment to mothers was found positively correlated with current satisfaction with the relationship, perception of maternal care before the age of 12 and negatively correlated with perception of controlling behavior before the age 12. Considering the relationship between current parental attachment and romantic attachment, it was found that as the current attachment to mother strengthens attachment avoidance towards husband decreases. Results revealed that although attachment between the adult daughters and old mothers weakens, the relationship is still critical in daughters’ lives. The strength of current attachment with the mother is related both with the early relationship with the mother and current attachment with the husband. The current study is thought to contribute to attachment theory emphasizing the attachment as a lifetime construct. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adult%20daughter" title="adult daughter">adult daughter</a>, <a href="https://publications.waset.org/abstracts/search?q=attachment" title=" attachment"> attachment</a>, <a href="https://publications.waset.org/abstracts/search?q=old%20mothers" title=" old mothers"> old mothers</a>, <a href="https://publications.waset.org/abstracts/search?q=parental%20bonding" title=" parental bonding "> parental bonding </a> </p> <a href="https://publications.waset.org/abstracts/46366/lifetime-attachment-adult-daughters-attachment-to-their-old-mothers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46366.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">331</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">357</span> The Effect of the Addition of Additives on the Properties of Bisamide Organogels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elmira%20%20Ghanbari">Elmira Ghanbari</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20%20Van%20Esch"> Jan Van Esch</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20%20J.%20Picken"> Stephen J. Picken</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahil%20%20Aggarwal"> Sahil Aggarwal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Organogels are formed by the assembly of low molecular weight gelators (LMWG) into fibrous structures. The assembly of these molecules into crystalline fibrous structures occurs as a result of reversible interactions such as π-stacking, hydrogen-bonding, and van der Waals interactions. Bisamide organogelators with two amide groups have been used as one of LMWGs which show efficient assembly behavior via hydrogen bonding for network formation, the formation of a crystalline network for solvent entrapment. In this study, different bisamide gelators with different lengths of alkyl chains have been added to the bisamide parent gels. The effect of the addition of bisamide additives on the gelation of bisamide gels is described. Investigation of the thermal properties of the gels by differential scanning calorimetry and dropping ball techniques indicated that the bisamide gels can be formed by the addition of a high concentration of the second bisamide components. The microstructure of the gels with different gelator components has been visualized with scanning electron microscopy (SEM) which has shown systematic woven, platelet-like, and a combination of those morphologies for different gels. Examining the addition of a range of bisamide additives with different structural characteristics than the parent bisamide gels has confirmed the effect of the molecular structure on the morphology of the bisamide gels and their final properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bisamide%20organogelator%20additives" title="bisamide organogelator additives">bisamide organogelator additives</a>, <a href="https://publications.waset.org/abstracts/search?q=gel%20morphology" title=" gel morphology"> gel morphology</a>, <a href="https://publications.waset.org/abstracts/search?q=gel%20properties" title=" gel properties"> gel properties</a>, <a href="https://publications.waset.org/abstracts/search?q=self-assembly" title=" self-assembly"> self-assembly</a> </p> <a href="https://publications.waset.org/abstracts/138626/the-effect-of-the-addition-of-additives-on-the-properties-of-bisamide-organogels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138626.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">202</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">356</span> In-situ Fabrication of a Metal-Intermetallic Composite: Microstructure Evolution and Mechanical Response</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monireh%20Azimi">Monireh Azimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Reza%20Toroghinejad"> Mohammad Reza Toroghinejad</a>, <a href="https://publications.waset.org/abstracts/search?q=Leo%20A.%20I.%20Kestens"> Leo A. I. Kestens</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The role of different metallic and intermetallic reinforcements on the microstructure and the associated mechanical response of a composite is of crucial importance. To investigate this issue, a multiphase metal-intermetallic composite was in-situ fabricated through reactive annealing and accumulative roll bonding (ARB) processes. EBSD results indicated that the lamellar grain structure of the Al matrix after the first cycle has evolved with increasing strain to a mixed structure consisting of equiaxed and lamellar grains, whereby the steady-state did not occur after the 3rd (last) cycle—applying a strain of 6.1 in the Al phase, the length and thickness of the grains reduced by 92.2% and 97.3%, respectively, compared to the annealed state. Intermetallic phases together with the metallic reinforcement of Ni influence grain fragmentation of the Al matrix and give rise to a specific texture evolution by creating heterogeneity in the strain and flow patterns. Mechanical properties of the multiphase composite demonstrated the yield and ultimate tensile strengths of 217.9 MPa and 340.1 MPa, respectively, compared to 48.7 MPa and 55.4 MPa in the metal-intermetallic laminated (MIL) sandwich before applying the ARB process, which corresponds to an increase of 347% and 514% of yield and tensile strength, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=accumulative%20roll%20bonding" title="accumulative roll bonding">accumulative roll bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=metal-intermetallic%20composite" title=" metal-intermetallic composite"> metal-intermetallic composite</a>, <a href="https://publications.waset.org/abstracts/search?q=severe%20plastic%20deformation" title=" severe plastic deformation"> severe plastic deformation</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a> </p> <a href="https://publications.waset.org/abstracts/140420/in-situ-fabrication-of-a-metal-intermetallic-composite-microstructure-evolution-and-mechanical-response" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140420.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">194</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">355</span> Effect of Primer on Bonding between Resin Cement and Zirconia Ceramic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deog-Gyu%20Seo">Deog-Gyu Seo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin-Soo%20Ahn"> Jin-Soo Ahn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objectives: Recently, the development of adhesive primers on stable bonding between zirconia and resin cement has been on the increase. The bond strength of zirconia-resin cement can be effectively increased with the treatment of primer composed of the adhesive monomer that can chemically bond with the oxide layer, which forms on the surface of zirconia. 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) that contains phosphate ester and acidic monomer 4-methacryloxyethyl trimellitic anhydride(4-META) have been suggested as monomers that can form chemical bond with the surface oxide layer of zirconia. Also, these suggested monomers have proved to be effective zirconia surface treatment for bonding to resin cement. The purpose of this study is to evaluate the effects of primer treatment on the bond strength of Zirconia-resin cement by using three different kinds of primers on the market. Methods: Zirconia blocks were prepared into 60 disk-shaped specimens by using a diamond saw. Specimens were divided into four different groups: first three groups were treated with zirconiaLiner(Sun Medical Co., Ltd., Furutaka-cho, Moriyama, Shiga, Japan), Alloy primer (Kuraray Noritake Dental Inc., Sakaju, Kurashiki, Okayama, Japan), and Universal primer (Tokuyama dental Corp., Taitou, Taitou-ku, Tokyo, Japan) respectively. The last group was the control with no surface treatment. Dual cured resin cement (Biscem, Bisco Inc., Schaumburg, IL, USA) was luted to each group of specimens. And then, shear bond strengths were measured by universal tesing machine. The significance of the result was statistically analyzed by one-way ANOVA and Tukey test. The failure sites in each group were inspected under a magnifier. Results: Mean shear bond strength were 0.60, 1.39, 1.03, 1.38 MPa for control, Zirconia Liner (ZL), Alloy primer (AP), Universal primer (UP), respectively. Groups with application of each of the three primers showed significantly higher shear bond strength compared to the control group (p < 0.05). Among the three groups with the treatment, ZL and UP showed significantly higher shear bond strength than AP (p < 0.05), and there were no significant differences in mean shear bond strength between ZL and UP (p < 0.05). While the most specimens of control groups showed adhesive failure (80%), the most specimens of three primer-treated groups showed cohesive or mixed failure (80%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=primer" title="primer">primer</a>, <a href="https://publications.waset.org/abstracts/search?q=resin%20cement" title=" resin cement"> resin cement</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20bond%20strength" title=" shear bond strength"> shear bond strength</a>, <a href="https://publications.waset.org/abstracts/search?q=zirconia" title=" zirconia"> zirconia</a> </p> <a href="https://publications.waset.org/abstracts/78632/effect-of-primer-on-bonding-between-resin-cement-and-zirconia-ceramic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78632.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">202</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">354</span> Investigation of the Mechanical and Thermal Properties of a Silver Oxalate Nanoporous Structured Sintered Joint for Micro-joining in Relation to the Sintering Process Parameters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Vivet">L. Vivet</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Benabou"> L. Benabou</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Simon"> O. Simon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With highly demanding applications in the field of power electronics, there is an increasing need to have interconnection materials with properties that can ensure both good mechanical assembly and high thermal/electrical conductivities. So far, lead-free solders have been considered an attractive solution, but recently, sintered joints based on nano-silver paste have been used for die attach and have proved to be a promising solution offering increased performances in high-temperature applications. In this work, the main parameters of the bonding process using silver oxalates are studied, i.e., the heating rate and the bonding pressure mainly. Their effects on both the mechanical and thermal properties of the sintered layer are evaluated following an experimental design. Pairs of copper substrates with gold metallization are assembled through the sintering process to realize the samples that are tested using a micro-traction machine. In addition, the obtained joints are examined through microscopy to identify the important microstructural features in relation to the measured properties. The formation of an intermetallic compound at the junction between the sintered silver layer and the gold metallization deposited on copper is also analyzed. Microscopy analysis exhibits a nanoporous structure of the sintered material. It is found that higher temperature and bonding pressure result in higher densification of the sintered material, with higher thermal conductivity of the joint but less mechanical flexibility to accommodate the thermo-mechanical stresses arising during service. The experimental design allows hence the determination of the optimal process parameters to reach sufficient thermal/mechanical properties for a given application. It is also found that the interphase formed between silver and gold metallization is the location where the fracture occurred after the mechanical testing, suggesting that the inter-diffusion mechanism between the different elements of the assembly leads to the formation of a relatively brittle compound. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoporous%20structure" title="nanoporous structure">nanoporous structure</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20oxalate" title=" silver oxalate"> silver oxalate</a>, <a href="https://publications.waset.org/abstracts/search?q=sintering" title=" sintering"> sintering</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20strength" title=" mechanical strength"> mechanical strength</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20conductivity" title=" thermal conductivity"> thermal conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=microelectronic%20packaging" title=" microelectronic packaging"> microelectronic packaging</a> </p> <a href="https://publications.waset.org/abstracts/158737/investigation-of-the-mechanical-and-thermal-properties-of-a-silver-oxalate-nanoporous-structured-sintered-joint-for-micro-joining-in-relation-to-the-sintering-process-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158737.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">93</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">353</span> Ab Initio Study of Co2ZrGe and Co2NbB Full Heusler Compounds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Abada">A. Abada</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Hiadsi"> S. Hiadsi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Ouahrani"> T. Ouahrani</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Amrani"> B. Amrani</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Amara"> K. Amara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Using the first-principles full-potential linearized augmented plane wave plus local orbital (FP-LAPW+lo) method based on density functional theory (DFT), we have investigated the electronic structure and magnetism of some Co2- based full Heusler alloys, namely Co2ZrGe and Co2NbB. The calculations show that these compounds are to be half-metallic ferromagnets (HMFs) with a total magnetic moment of 2.000 µB per formula unit, well consistent with the Slater-Pauling rule. Our calculations show indirect band gaps of 0.58 eV and 0.47 eV in the minority spin channel of density of states (DOS) for Co2ZrGe and Co2NbB, respectively. Analysis of the DOS and magnetic moments indicates that their magnetism is mainly related to the d-d hybridization between the Co and Zr (or Nb) atoms. The half metallicity is found to be robust against volume changes and the two alloys kept a 100% of spin polarization at the Fermi level. In addition, an atom inside molecule AIM formalism and an electron localization function ELF were also adopted to study the bonding properties of these compounds, building a bridge between their electronic and bonding behavior. As they have a good crystallographic compatibility with the lattice of semiconductors used industrially and negative calculated cohesive energies with considerable absolute values these two alloys could be promising magnetic materials in the spintronics field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=half-metallic%20ferromagnets" title="half-metallic ferromagnets">half-metallic ferromagnets</a>, <a href="https://publications.waset.org/abstracts/search?q=full%20Heusler%20alloys" title=" full Heusler alloys"> full Heusler alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a>, <a href="https://publications.waset.org/abstracts/search?q=electronic%20properties" title=" electronic properties"> electronic properties</a> </p> <a href="https://publications.waset.org/abstracts/24953/ab-initio-study-of-co2zrge-and-co2nbb-full-heusler-compounds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24953.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">352</span> Effects of Different Fiber Orientations on the Shear Strength Performance of Composite Adhesive Joints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ferhat%20Kadioglu">Ferhat Kadioglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hasan%20Puskul"> Hasan Puskul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A composite material with carbon fiber and polymer matrix has been used as adherent for manufacturing adhesive joints. In order to evaluate different fiber orientations on joint performance, the adherents with the 0°, ±15°, ±30°, ±45° fiber orientations were used in the single lap joint configuration. The joints with an overlap length of 25 mm were prepared according to the ASTM 1002 specifications and subjected to tensile loadings. The structural adhesive used was a two-part epoxy to be cured at 70°C for an hour. First, mechanical behaviors of the adherents were measured using three point bending test. In the test, considerations were given to stress to failure and elastic modulus. The results were compared with theoretical ones using rule of mixture. Then, the joints were manufactured in a specially prepared jig, after a proper surface preparation. Experimental results showed that the fiber orientations of the adherents affected the joint performance considerably; the joints with ±45° adherents experienced the worst shear strength, half of those with 0° adherents, and in general, there was a great relationship between the fiber orientations and failure mechanisms. Delamination problems were observed for many joints, which were thought to be due to peel effects at the ends of the overlap. It was proved that the surface preparation applied to the adherent surface was adequate. For further explanation of the results, a numerical work should be carried out using a possible non-linear analysis. <p class="card-text"><strong>Keywords:</strong> <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=adhesive%20bonding" title=" adhesive bonding"> adhesive bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=bonding%20strength" title=" bonding strength"> bonding strength</a>, <a href="https://publications.waset.org/abstracts/search?q=lap%20joint" title=" lap joint"> lap joint</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20strength" title=" tensile strength"> tensile strength</a> </p> <a href="https://publications.waset.org/abstracts/35970/effects-of-different-fiber-orientations-on-the-shear-strength-performance-of-composite-adhesive-joints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35970.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">370</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">351</span> Keto-Enol Tautomerism of Salicylideneaniline Substituted</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rihana%20Hadjeb">Rihana Hadjeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Djamel%20Barkat"> Djamel Barkat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Schiff bases derived from o-hydroxybenzaldehyde has attracted a great interest not only for its promising applications towards linear and non-linear optical properties, biological activity and technological applications but also used as model compounds for the theory of hydrogen bonding. Due to its intramolecular hydrogen bonding, depending on the position of proton in the hydrogen bond o-hydroxy salicylidene Schiff bases exhibit two tautomeric forms, enol-imine (E-form) and keto-enamine (K-form) both in solution and in crystalline state. A zwitterionic structure also appears due to a proton transfer in enol – imine and keto – amine tautomer. These classes of compounds also exhibit thermochromic and photochromic behavior. We undertook in this study the synthesis of ten compounds of hydroxy Schiff bases from the condensation of salicylic aldehyde and aniline substituted in the ortho, meta and para by the methyl, chloro and nitro groups. To study the keto-enol equilibrium of the compounds; UV-VIS spectra were studied in different polarity solvents. The compounds were in tautomeric equilibrium (enol imine O–H•••N, keto-amine O•••H–N forms). For some derivatives of salicylideneanilines the keto-amine form was observed in both ethanol and dioxane. IR results showed that all Schiff bases studied favor the enol-imine form over the keto form. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=salicylideneaniline" title="salicylideneaniline">salicylideneaniline</a>, <a href="https://publications.waset.org/abstracts/search?q=tautomerism" title=" tautomerism"> tautomerism</a>, <a href="https://publications.waset.org/abstracts/search?q=keto-enol%20equilibrium" title=" keto-enol equilibrium"> keto-enol equilibrium</a>, <a href="https://publications.waset.org/abstracts/search?q=UV-VIS%20spectroscopy" title=" UV-VIS spectroscopy"> UV-VIS spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=solvent%20effect" title=" solvent effect"> solvent effect</a> </p> <a href="https://publications.waset.org/abstracts/15613/keto-enol-tautomerism-of-salicylideneaniline-substituted" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15613.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">393</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">350</span> Exploring the Techniques of Achieving Structural Electrical Continuity for Gas Plant Facilities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulmohsen%20Alghadeer">Abdulmohsen Alghadeer</a>, <a href="https://publications.waset.org/abstracts/search?q=Fahad%20Al%20Mahashir"> Fahad Al Mahashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Loai%20Al%20Owa"> Loai Al Owa</a>, <a href="https://publications.waset.org/abstracts/search?q=Najim%20Alshahrani"> Najim Alshahrani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electrical continuity of steel structure members is an essential condition to ensure equipotential and ultimately to protect personnel and assets in industrial facilities. The steel structure is electrically connected to provide a low resistance path to earth through equipotential bonding to prevent sparks and fires in the event of fault currents and avoid malfunction of the plant with detrimental consequences to the local and global environment. The oil and gas industry is commonly establishing steel structure electrical continuity by bare surface connection of coated steel members. This paper presents information pertaining to a real case of exploring and applying different techniques to achieve the electrical continuity in erecting steel structures at a gas plant facility. A project was supplied with fully coated steel members even at the surface connection members that cause electrical discontinuity. This was observed while a considerable number of steel members had already been received at the job site and erected. This made the resolution of the case to use different techniques such as bolt tightening and torqueing, chemical paint stripping and single point jumpers. These techniques are studied with comparative analysis related to their applicability, workability, time and cost advantages and disadvantages. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coated%20Steel" title="coated Steel">coated Steel</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20continuity" title=" electrical continuity"> electrical continuity</a>, <a href="https://publications.waset.org/abstracts/search?q=equipotential%20bonding" title=" equipotential bonding"> equipotential bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=galvanized%20steel" title=" galvanized steel"> galvanized steel</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20plant%20facility" title=" gas plant facility"> gas plant facility</a>, <a href="https://publications.waset.org/abstracts/search?q=lightning%20protection" title=" lightning protection"> lightning protection</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20structure" title=" steel structure"> steel structure</a> </p> <a href="https://publications.waset.org/abstracts/155641/exploring-the-techniques-of-achieving-structural-electrical-continuity-for-gas-plant-facilities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155641.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">128</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">349</span> Investigating the Relationship between Place Attachment and Sustainable Development of Urban Spaces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Reza%20Zeraatpisheh">Hamid Reza Zeraatpisheh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Akbar%20Heidari"> Ali Akbar Heidari</a>, <a href="https://publications.waset.org/abstracts/search?q=Soleiman%20Mohammadi%20Doust"> Soleiman Mohammadi Doust</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study has examined the relationship between place attachment and sustainable development of urban spaces. To perform this, the components of place identity, emotional attachment, place attachment and social bonding which totally constitute the output of place attachment, by means of the standardized questionnaire measure place attachment in three domains of (cognitive) the place identity, (affective) emotional attachment and (behavioral) place attachment and social bonding. To measure sustainable development, three components of sustainable development, including society, economy and environment has been considered. The study is descriptive. The assessment instrument is the standard questionnaire of Safarnia which has been used to measure the variable of place attachment and to measure the variable of sustainable development, a questionnaire has been made by the researcher and been based on the combined theoretical framework. The statistical population of this research has been the city of Shiraz. The statistical sample has been Hafeziyeh. SPSS software has been used to analyze the data and examined the results of both descriptive and inferential statistics. In inferential statistics, Pearson correlation coefficient has been used to examine the hypotheses. In this study, the variable of place attachment is high and sustainable development is also in a high level. These results suggest a positive relationship between attachment to place and sustainable development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=place%20attachment" title="place attachment">place attachment</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=economy-society-environment" title=" economy-society-environment"> economy-society-environment</a>, <a href="https://publications.waset.org/abstracts/search?q=Hafez%27s%20tomb" title=" Hafez's tomb"> Hafez's tomb</a> </p> <a href="https://publications.waset.org/abstracts/15610/investigating-the-relationship-between-place-attachment-and-sustainable-development-of-urban-spaces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15610.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">701</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">348</span> Impact of Keeping Drug-Addicted Mothers and Newborns Together: Enhancing Bonding, Interoception Learning, and Thriving for Newborns with Positive Effects on Attachment and Child Development</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Poteet%20Frances">Poteet Frances</a>, <a href="https://publications.waset.org/abstracts/search?q=Glovinski%20Ira"> Glovinski Ira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> INTRODUCTION: The interoceptive nervous system continuously senses chemical and anatomical changes and helps you recognize, understand, and feel what’s going on inside your body so it is important for energy regulation, memory, affect, and sense of self. A newborn needs predictable routines rather than confusion/chaos to make connections between internal experiences and emotions. AIM: Current legal protocols of removing babies from drug-addicted mothers impact the critical window of bonding. The newborn’s brain is social and the attachment process influences a child’s development which begins immediately after birth through nourishment, comfort, and protection. DESCRIPTION: Our project aims to educate drug-addicted mothers, and medical, nursing, and social work professionals on interoceptive concepts and practices to sustain the mother/newborn relationship. A mother’s interoceptive knowledge predicts children’s emotion regulation and social skills in middle childhood. CONCLUSION: When mothers develop an awareness of their inner bodily sensations, they can self-regulate and be emotionally available to co-regulate (support their newborn during distressing emotions and sensations). Our project has enhanced relationship preservation (mothers understand how their presence matters) and the overall mother/newborn connection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drug-addiction" title="drug-addiction">drug-addiction</a>, <a href="https://publications.waset.org/abstracts/search?q=interoception" title=" interoception"> interoception</a>, <a href="https://publications.waset.org/abstracts/search?q=legal" title=" legal"> legal</a>, <a href="https://publications.waset.org/abstracts/search?q=mothers" title=" mothers"> mothers</a>, <a href="https://publications.waset.org/abstracts/search?q=newborn" title=" newborn"> newborn</a>, <a href="https://publications.waset.org/abstracts/search?q=self-regulation" title=" self-regulation"> self-regulation</a> </p> <a href="https://publications.waset.org/abstracts/179354/impact-of-keeping-drug-addicted-mothers-and-newborns-together-enhancing-bonding-interoception-learning-and-thriving-for-newborns-with-positive-effects-on-attachment-and-child-development" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179354.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">61</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">347</span> Membrane Permeability of Middle Molecules: A Computational Chemistry Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sundaram%20Arulmozhiraja">Sundaram Arulmozhiraja</a>, <a href="https://publications.waset.org/abstracts/search?q=Kanade%20Shimizu"> Kanade Shimizu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuta%20Yamamoto"> Yuta Yamamoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Satoshi%20Ichikawa"> Satoshi Ichikawa</a>, <a href="https://publications.waset.org/abstracts/search?q=Maenaka%20Katsumi"> Maenaka Katsumi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiroaki%20Tokiwa"> Hiroaki Tokiwa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Drug discovery is shifting from small molecule based drugs targeting local active site to middle molecules (MM) targeting large, flat, and groove-shaped binding sites, for example, protein-protein interface because at least half of all targets assumed to be involved in human disease have been classified as “difficult to drug” with traditional small molecules. Hence, MMs such as peptides, natural products, glycans, nucleic acids with various high potent bioactivities become important targets for drug discovery programs in the recent years as they could be used for ‘undruggable” intracellular targets. Cell membrane permeability is one of the key properties of pharmacodynamically active MM drug compounds and so evaluating this property for the potential MMs is crucial. Computational prediction for cell membrane permeability of molecules is very challenging; however, recent advancement in the molecular dynamics simulations help to solve this issue partially. It is expected that MMs with high membrane permeability will enable drug discovery research to expand its borders towards intracellular targets. Further to understand the chemistry behind the permeability of MMs, it is necessary to investigate their conformational changes during the permeation through membrane and for that their interactions with the membrane field should be studied reliably because these interactions involve various non-bonding interactions such as hydrogen bonding, -stacking, charge-transfer, polarization dispersion, and non-classical weak hydrogen bonding. Therefore, parameters-based classical mechanics calculations are hardly sufficient to investigate these interactions rather, quantum mechanical (QM) calculations are essential. Fragment molecular orbital (FMO) method could be used for such purpose as it performs ab initio QM calculations by dividing the system into fragments. The present work is aimed to study the cell permeability of middle molecules using molecular dynamics simulations and FMO-QM calculations. For this purpose, a natural compound syringolin and its analogues were considered in this study. Molecular simulations were performed using NAMD and Gromacs programs with CHARMM force field. FMO calculations were performed using the PAICS program at the correlated Resolution-of-Identity second-order Moller Plesset (RI-MP2) level with the cc-pVDZ basis set. The simulations clearly show that while syringolin could not permeate the membrane, its selected analogues go through the medium in nano second scale. These correlates well with the existing experimental evidences that these syringolin analogues are membrane-permeable compounds. Further analyses indicate that intramolecular -stacking interactions in the syringolin analogues influenced their permeability positively. These intramolecular interactions reduce the polarity of these analogues so that they could permeate the lipophilic cell membrane. Conclusively, the cell membrane permeability of various middle molecules with potent bioactivities is efficiently studied using molecular dynamics simulations. Insight of this behavior is thoroughly investigated using FMO-QM calculations. Results obtained in the present study indicate that non-bonding intramolecular interactions such as hydrogen-bonding and -stacking along with the conformational flexibility of MMs are essential for amicable membrane permeation. These results are interesting and are nice example for this theoretical calculation approach that could be used to study the permeability of other middle molecules. This work was supported by Japan Agency for Medical Research and Development (AMED) under Grant Number 18ae0101047. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fragment%20molecular%20orbital%20theory" title="fragment molecular orbital theory">fragment molecular orbital theory</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane%20permeability" title=" membrane permeability"> membrane permeability</a>, <a href="https://publications.waset.org/abstracts/search?q=middle%20molecules" title=" middle molecules"> middle molecules</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20dynamics%20simulation" title=" molecular dynamics simulation"> molecular dynamics simulation</a> </p> <a href="https://publications.waset.org/abstracts/100916/membrane-permeability-of-middle-molecules-a-computational-chemistry-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100916.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">188</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">346</span> Experimental Investigation on the Anchor Behavior of Planar Clamping Anchor for Carbon Fiber-Reinforced Polymer Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yongyu%20Duo">Yongyu Duo</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaogang%20Liu"> Xiaogang Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Qingrui%20Yue"> Qingrui Yue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The anchor plays a critical role in the utilization of the tensile strength of carbon fiber-reinforced polymer (CFRP) plate when it is applied for the prestressed retrofitted and cable structures. In this paper, the anchor behavior of planar clamping anchor (PCA) under different interface treatment forms and normal pressures was investigated by the uniaxial static tensile test. Two interface treatment forms were adopted, including pure friction and the coupling action of friction and bonding. The results indicated that the load-bearing capacity of PCA could be obviously improved by the coupling action of friction and bonding compared with the action of pure friction. Under the normal pressure of 11 MPa, 22 MPa, and 33 MPa, the load-bearing capacity of PCA was enhanced by 164.61%, 68.40%, and 52.78%, respectively, and the tensile strength of the CFRP plate was fully exploited when the normal pressure reached 44 MPa. In addition, the experimental coefficient of static friction between the galling CFRP plate and a sandblasted steel plate was in the range of 0.28-0.30, corresponding to various normal pressure. Moreover, the failure mode was determined by the interface treatment form and normal pressure. The research in this paper has important guiding significance to optimize the design of the mechanical clamping anchor, contributing to promoting the application of CFRP plate in reinforcement and cable structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PCA" title="PCA">PCA</a>, <a href="https://publications.waset.org/abstracts/search?q=CFRP%20plate" title=" CFRP plate"> CFRP plate</a>, <a href="https://publications.waset.org/abstracts/search?q=interface%20treatment%20form" title=" interface treatment form"> interface treatment form</a>, <a href="https://publications.waset.org/abstracts/search?q=normal%20pressure" title=" normal pressure"> normal pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=friction" title=" friction"> friction</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling%20action" title=" coupling action"> coupling action</a> </p> <a href="https://publications.waset.org/abstracts/164507/experimental-investigation-on-the-anchor-behavior-of-planar-clamping-anchor-for-carbon-fiber-reinforced-polymer-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164507.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">81</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">345</span> Modelling and Numerical Analysis of Thermal Non-Destructive Testing on Complex Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20L.%20Hor">Y. L. Hor</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20S.%20Chu"> H. S. Chu</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20P.%20Bui"> V. P. Bui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Composite material is widely used to replace conventional material, especially in the aerospace industry to reduce the weight of the devices. It is formed by combining reinforced materials together via adhesive bonding to produce a bulk material with alternated macroscopic properties. In bulk composites, degradation may occur in microscopic scale, which is in each individual reinforced fiber layer or especially in its matrix layer such as delamination, inclusion, disbond, void, cracks, and porosity. In this paper, we focus on the detection of defect in matrix layer which the adhesion between the composite plies is in contact but coupled through a weak bond. In fact, the adhesive defects are tested through various nondestructive methods. Among them, pulsed phase thermography (PPT) has shown some advantages providing improved sensitivity, large-area coverage, and high-speed testing. The aim of this work is to develop an efficient numerical model to study the application of PPT to the nondestructive inspection of weak bonding in composite material. The resulting thermal evolution field is comprised of internal reflections between the interfaces of defects and the specimen, and the important key-features of the defects presented in the material can be obtained from the investigation of the thermal evolution of the field distribution. Computational simulation of such inspections has allowed the improvement of the techniques to apply in various inspections, such as materials with high thermal conductivity and more complex structures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pulsed%20phase%20thermography" title="pulsed phase thermography">pulsed phase thermography</a>, <a href="https://publications.waset.org/abstracts/search?q=weak%20bond" title=" weak bond"> weak bond</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=CFRP" title=" CFRP"> CFRP</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20modelling" title=" computational modelling"> computational modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/78383/modelling-and-numerical-analysis-of-thermal-non-destructive-testing-on-complex-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78383.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">175</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">344</span> A Technology of Hot Stamping and Welding of Carbon Reinforced Plastic Sheets Using High Electric Resistance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tomofumi%20Kubota">Tomofumi Kubota</a>, <a href="https://publications.waset.org/abstracts/search?q=Mitsuhiro%20Okayasu"> Mitsuhiro Okayasu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, environmental problems and energy problems typified by global warming are intensifying, and transportation devices are required to reduce the weight of structural materials from the viewpoint of strengthening fuel efficiency regulations and energy saving. Carbon fiber reinforced plastic (CFRP) used in this research is attracting attention as a structural material to replace metallic materials. Among them, thermoplastic CFRP is expected to expand its application range in terms of recyclability and cost. High formability and weldability of the unidirectional CFRP sheets conducted by a proposed hot stamping process were proposed, in which the carbon fiber reinforced plastic sheets are heated by a designed technique. In this case, the CFRP sheets are heated by the high electric voltage applied through carbon fibers. In addition, the electric voltage was controlled by the area ratio of exposed carbon fiber on the sample surfaces. The lower exposed carbon fiber on the sample surface makes high electric resistance leading to the high sample temperature. In this case, the CFRP sheets can be heated to more than 150 °C. With the sample heating, the stamping and welding technologies can be carried out. By changing the sample temperature, the suitable stamping condition can be detected. Moreover, the proper welding connection of the CFRP sheets was proposed. In this study, we propose a fusion bonding technique using thermoplasticity, high current flow, and heating caused by electrical resistance. This technology uses the principle of resistance spot welding. In particular, the relationship between the carbon fiber exposure rate and the electrical resistance value that affect the bonding strength is investigated. In this approach, the mechanical connection using rivet is also conducted to make a comparison of the severity of welding. The change of connecting strength is reflected by the fracture mechanism. The low and high connecting strength are obtained for the separation of two CFRP sheets and fractured inside the CFRP sheet, respectively. In addition to the two fracture modes, micro-cracks in CFRP are also detected. This approach also includes mechanical connections using rivets to compare the severity of the welds. The change in bond strength is reflected by the destruction mechanism. Low and high bond strengths were obtained to separate the two CFRP sheets, each broken inside the CFRP sheets. In addition to the two failure modes, micro cracks in CFRP are also detected. In this research, from the relationship between the surface carbon fiber ratio and the electrical resistance value, it was found that different carbon fiber ratios had similar electrical resistance values. Therefore, we investigated which of carbon fiber and resin is more influential to bonding strength. As a result, the lower the carbon fiber ratio, the higher the bonding strength. And this is 50% better than the conventional average strength. This can be evaluated by observing whether the fracture mode is interface fracture or internal fracture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFRP" title="CFRP">CFRP</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20stamping" title=" hot stamping"> hot stamping</a>, <a href="https://publications.waset.org/abstracts/search?q=weliding" title=" weliding"> weliding</a>, <a href="https://publications.waset.org/abstracts/search?q=deforamtion" title=" deforamtion"> deforamtion</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20property" title=" mechanical property"> mechanical property</a> </p> <a href="https://publications.waset.org/abstracts/107491/a-technology-of-hot-stamping-and-welding-of-carbon-reinforced-plastic-sheets-using-high-electric-resistance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107491.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">125</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">343</span> Study of Complex (CO) 3Ti (PHND) and CpV (PHND) (PHND = Phénanthridine)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akila%20Tayeb-Benmachiche">Akila Tayeb-Benmachiche</a>, <a href="https://publications.waset.org/abstracts/search?q=Saber-Mustapha%20Zendaoui"> Saber-Mustapha Zendaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Salah-Eddine%20Bouaoud"> Salah-Eddine Bouaoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Bachir%20Zouchoune"> Bachir Zouchoune </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The variation of the metal coordination site in π-coordinated polycyclic aromatic hydrocarbons (PAH) corresponds to the haptotropic rearrangement or haptotropic migration in which the metal fragment MLn is considered as the moveable moiety that is shifted between two rings of polycyclic or heteropolycyclic ligands. These structural characteristics and dynamical properties give to this category of transition metal complexes a considerable interest. We have investigated the coordination and the haptotropic shifts of (CO)3Ti and CpV moieties over the phenanthridine aromatic system and according to the metal atom nature. The optimization of (CO)3Ti(PHND) and CpV(PHND), using the Amsterdam Density Functional (ADF) program, without a symmetrical restriction of geometry gives an η6 coordination mode of the C6 and C5N rings, which in turn give rise to a six low-lying deficient 16-MVE of each (CO)3Ti(PHND) and CpV(PHND) structure (three singlet and three triplet state structures for Ti complexes and three triplet and three quintet state structures for V complexes). Thus, the η6–η6 haptotropic migration of the metal fragment MLn from the terminal C6 ring to the central C5N ring has been achieved by a loss of energy. However, its η6–η6 haptotropic migration from central C5N ring to the terminal C6 rings has been accomplished by a gain of energy. These results show the capability of the phenanthridine ligand to adapt itself to the electronic demand of the metal in agreement with the nature of the metal–ligand bonding and demonstrate that this theoretical study can also be applied to large fused π-systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electronic%20structure" title="electronic structure">electronic structure</a>, <a href="https://publications.waset.org/abstracts/search?q=bonding%20analysis" title=" bonding analysis"> bonding analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20functional%20theory" title=" density functional theory"> density functional theory</a>, <a href="https://publications.waset.org/abstracts/search?q=coordination%20%20chemistry%20haptotropic%20migration" title=" coordination chemistry haptotropic migration "> coordination chemistry haptotropic migration </a> </p> <a href="https://publications.waset.org/abstracts/38303/study-of-complex-co-3ti-phnd-and-cpv-phnd-phnd-phenanthridine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38303.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">301</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=maternal-fetal%20bonding&page=2" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=maternal-fetal%20bonding&page=1">1</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=maternal-fetal%20bonding&page=2">2</a></li> <li class="page-item active"><span class="page-link">3</span></li> <li class="page-item"><a class="page-link" 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