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orientation</title> <meta name="description" content="Search results for: crystal orientation"> <meta name="keywords" content="crystal orientation"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="crystal orientation"> <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> 1735</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: crystal orientation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1735</span> Texture Observation of Bending by XRD and EBSD Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Takashi%20Sakai">Takashi Sakai</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuri%20Shimomura"> Yuri Shimomura</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The crystal orientation is a factor that affects the microscopic material properties. Crystal orientation determines the anisotropy of the polycrystalline material. And it is closely related to the mechanical properties of the material. In this paper, for pure copper polycrystalline material, two different methods; X-Ray Diffraction (XRD) and Electron Backscatter Diffraction (EBSD); and the crystal orientation were analyzed. In the latter method, it is possible that the X-ray beam diameter is thicker as compared to the former, to measure the crystal orientation macroscopically relatively. By measurement of the above, we investigated the change in crystal orientation and internal tissues of pure copper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bending" title="bending">bending</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20backscatter%20diffraction" title=" electron backscatter diffraction"> electron backscatter diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=IPF%20map" title=" IPF map"> IPF map</a>, <a href="https://publications.waset.org/abstracts/search?q=orientation%20distribution%20function" title=" orientation distribution function"> orientation distribution function</a> </p> <a href="https://publications.waset.org/abstracts/74539/texture-observation-of-bending-by-xrd-and-ebsd-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74539.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">330</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">1734</span> Experimental and Numerical Investigation on Deformation Behaviour of Single Crystal Copper</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suman%20Paik">Suman Paik</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20V.%20Durgaprasad"> P. V. Durgaprasad</a>, <a href="https://publications.waset.org/abstracts/search?q=Bijan%20K.%20Dutta"> Bijan K. Dutta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A study combining experimental and numerical investigation on the deformation behaviour of single crystals of copper is presented in this paper. Cylindrical samples were cut in specific orientations from high purity copper single crystal and subjected to uniaxial compression loading at quasi-static strain rate. The stress-strain curves along two different crystallographic orientations were then extracted. In order to study and compare the deformation responses, a single crystal plasticity model incorporating non-Schmid effects was developed assuming cross-slip plays an important role in orientation of the material. By making use of crystal plasticity finite element method, the model was applied to investigate the orientation dependence of the stress-strain behaviour of two crystallographic orientations. Finally, details of slip activities of deformed crystals were investigated by linking the orientation of slip lines with the theoretical traces of possible crystallographic planes. The experimentally determined active slip modes were matched with those determined by simulations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20plasticity" title="crystal plasticity">crystal plasticity</a>, <a href="https://publications.waset.org/abstracts/search?q=modelling" title=" modelling"> modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=non-Schmid%20effects" title=" non-Schmid effects"> non-Schmid effects</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20elements" title=" finite elements"> finite elements</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20strain" title=" finite strain"> finite strain</a> </p> <a href="https://publications.waset.org/abstracts/107627/experimental-and-numerical-investigation-on-deformation-behaviour-of-single-crystal-copper" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107627.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">213</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">1733</span> Influence of Crystal Orientation on Electromechanical Behaviors of Relaxor Ferroelectric P(VDF-TRFE-CTFE) Terpolymer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qing%20Liu">Qing Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean-fabien%20Capsal"> Jean-fabien Capsal</a>, <a href="https://publications.waset.org/abstracts/search?q=Claude%20Richard"> Claude Richard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this current contribution, authors are dedicated to investigate influence of the crystal lamellae orientation on electromechanical behaviors of relaxor ferroelectric Poly (vinylidene fluoride –trifluoroethylene -chlorotrifluoroethylene) (P(VDF-TrFE-CTFE)) films by control of polymer microstructure, aiming to picture the full map of structure-property relationship. In order to define their crystal orientation films, terpolymer films were fabricated by solution-casting, stretching and hot-pressing process. Differential scanning calorimetry, impedance analyzer, and tensile strength techniques were employed to characterize crystallographic parameters, dielectric permittivity, and elastic Young’s modulus respectively. In addition, large electrical induced out-of-plane electrostrictive strain was obtained by cantilever beam mode. Consequently, as-casted pristine films exhibited surprisingly high electrostrictive strain 0.1774% due to considerably small value of elastic Young’s modulus although relatively low dielectric permittivity. Such reasons contributed to large mechanical elastic energy density. Instead, due to 2 folds increase of elastic Young’s modulus and less than 50% augmentation of dielectric constant, fully-crystallized film showed weak electrostrictive behavior and mechanical energy density as well. And subjected to mechanical stretching process, Film C exhibited stronger dielectric constant and out-performed electrostrictive strain over Film B because edge-on crystal lamellae orientation induced by uniaxially mechanical stretch. Hot-press films were compared in term of cooling rate. Rather large electrostrictive strain of 0.2788% for hot-pressed Film D in quenching process was observed although its dielectric permittivity equivalent to that of pristine as-casted Film A, showing highest mechanical elastic energy density value of 359.5 J/m^3. In hot-press cooling process, dielectric permittivity of Film E saw values at 48.8 concomitant with ca.100% increase of Young’s modulus. Films with intermediate mechanical energy density were obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20orientation" title="crystal orientation">crystal orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=electrostroctive%20strain" title=" electrostroctive strain"> electrostroctive strain</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20energy%20density" title=" mechanical energy density"> mechanical energy density</a>, <a href="https://publications.waset.org/abstracts/search?q=permittivity" title=" permittivity"> permittivity</a>, <a href="https://publications.waset.org/abstracts/search?q=relaxor%20ferroelectric" title=" relaxor ferroelectric"> relaxor ferroelectric</a> </p> <a href="https://publications.waset.org/abstracts/34664/influence-of-crystal-orientation-on-electromechanical-behaviors-of-relaxor-ferroelectric-pvdf-trfe-ctfe-terpolymer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34664.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">376</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">1732</span> The Gradient Complex Protective Coatings for Single Crystal Nickel Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Evgeniya%20Popova">Evgeniya Popova</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20Lesnikov"> Vladimir Lesnikov</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Popov"> Nikolay Popov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High yield complex coatings have been designed for thermally stressed cooled HP turbine blades from single crystal alloys ZHS32-VI-VI and ZHS36 with crystallographic orientation [001]. These coatings provide long-term protection of single crystal blades during operation. The three-layer coatings were prepared as follows: the diffusion barrier layer formation on the alloy surface, the subsequent deposition of the condensed bilayer coatings consisting of an inner layer based on Ni-Cr-Al-Y systems and an outer layer based on the alloyed β-phase. The structure, phase composition of complex coatings and reaction zone interaction with the single-crystal alloys ZHS32-VI and ZHS36-VI were investigated using scanning electron microscope (SEM). The effect of complex protective coatings on the properties of heat-resistant nickel alloys was studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=single%20crystal%20nickel%20alloys" title="single crystal nickel alloys">single crystal nickel alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=complex%20heat-resistant%20coatings" title=" complex heat-resistant coatings"> complex heat-resistant coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=structure" title=" structure"> structure</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20composition" title=" phase composition"> phase composition</a>, <a href="https://publications.waset.org/abstracts/search?q=properties" title=" properties"> properties</a> </p> <a href="https://publications.waset.org/abstracts/63315/the-gradient-complex-protective-coatings-for-single-crystal-nickel-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63315.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">418</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">1731</span> A Digital Representation of a Microstructure and Determining Its Mechanical Behavior</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Burak%20Bal">Burak Bal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mechanical characterization tests might come with a remarkable cost of time and money for both companies and academics. The inquiry to transform laboratory experiments to the computational media is getting a trend; accordingly, the literature supplies many analytical ways to explain the mechanics of deformation. In our work, we focused on the crystal plasticity finite element modeling (CPFEM) analysis on various materials in various crystal structures to predict the stress-strain curve without tensile tests. For FEM analysis, which we used in this study was ABAQUS, a standard user-defined material subroutine (UMAT) was prepared. The geometry of a specimen was created via DREAM 3D software with the inputs of Euler angles taken by Electron Back-Scattered Diffraction (EBSD) technique as orientation, or misorientation angles. The synthetic crystal created with DREAM 3D is also meshed in a way the grains inside the crystal meshed separately, and the computer can realize interaction of inter, and intra grain structures. The mechanical deformation parameters obtained from the literature put into the Fortran based UMAT code to describe how material will response to the load applied from specific direction. The mechanical response of a synthetic crystal created with DREAM 3D agrees well with the material response in the literature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20plasticity%20finite%20element%20modeling" title="crystal plasticity finite element modeling">crystal plasticity finite element modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=ABAQUS" title=" ABAQUS"> ABAQUS</a>, <a href="https://publications.waset.org/abstracts/search?q=Dream.3D" title=" Dream.3D"> Dream.3D</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a> </p> <a href="https://publications.waset.org/abstracts/103575/a-digital-representation-of-a-microstructure-and-determining-its-mechanical-behavior" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103575.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">154</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1730</span> Performances of the Double-Crystal Setup at CERN SPS Accelerator for Physics beyond Colliders Experiments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andrii%20Natochii">Andrii Natochii</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We are currently presenting the recent results from the CERN accelerator facilities obtained in the frame of the UA9 Collaboration. The UA9 experiment investigates how a tiny silicon bent crystal (few millimeters long) can be used for various high-energy physics applications. Due to the huge electrostatic field (tens of GV/cm) between crystalline planes, there is a probability for charged particles, impinging the crystal, to be trapped in the channeling regime. It gives a possibility to steer a high intensity and momentum beam by bending the crystal: channeled particles will follow the crystal curvature and deflect on the certain angle (from tens microradians for LHC to few milliradians for SPS energy ranges). The measurements at SPS, performed in 2017 and 2018, confirmed that the protons deflected by the first crystal, inserted in the primary beam halo, can be caught and channeled by the second crystal. In this configuration, we measure the single pass deflection efficiency of the second crystal and prove our opportunity to perform the fixed target experiment at SPS accelerator (LHC in the future). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=channeling" title="channeling">channeling</a>, <a href="https://publications.waset.org/abstracts/search?q=double-crystal%20setup" title=" double-crystal setup"> double-crystal setup</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed%20target%20experiment" title=" fixed target experiment"> fixed target experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=Timepix%20detector" title=" Timepix detector"> Timepix detector</a> </p> <a href="https://publications.waset.org/abstracts/101941/performances-of-the-double-crystal-setup-at-cern-sps-accelerator-for-physics-beyond-colliders-experiments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101941.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">151</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">1729</span> Carbamazepine Co-crystal Screening with Dicarboxylic Acids Co-Crystal Formers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Abd%20Rahim">S. Abd Rahim</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20A.%20Rahman"> F. A. Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20M.%20Nasir"> E. M. Nasir</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Ramle"> N. A. Ramle </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Co-crystal is believed to improve the solubility and dissolution rates and thus, enhanced the bioavailability of poor water soluble drugs particularly during the oral route of administration. With the existing of poorly soluble drugs in pharmaceutical industry, the screening of co-crystal formation using carbamazepine (CBZ) as a model drug compound with dicarboxylic acids co-crystal formers (CCF) namely fumaric (FA) and succinic (SA) acids in ethanol has been studied. The co-crystal formations were studied by varying the mol ratio values of CCF to CBZ to access the effect of CCF concentration on the formation of the co-crystal. Solvent evaporation, slurry, and cooling crystallisations which representing the solution based method co-crystal screening were used. The product crystal from the screening was characterized using X-ray powder diffraction (XRPD). The XRPD pattern profile analysis has shown that the CBZ co-crystals with FA and SA were successfully formed for all ratios studied. The findings revealed that CBZ-FA co-crystal were formed in two different polymorphs. It was found that CBZ-FA form A and form B were formed from evaporation and slurry crystallisation methods respectively. On the other hand, in cooling crystallisation method, CBZ-FA form A was formed at lower mol ratio of CCF to CBZ and vice versa. This study disclosed that different methods and mol ratios during the co-crystal screening can affect the outcome of co-crystal produced such as polymorphic forms of co-crystal and thereof. Thus, it was suggested that careful attentions is needed during the screening since the co-crystal formation is currently one of the promising approach to be considered in research and development for pharmaceutical industry to improve the poorly soluble drugs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=co-crystal" title="co-crystal">co-crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=dicarboxylic%20acid" title=" dicarboxylic acid"> dicarboxylic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=carbamazepine" title=" carbamazepine"> carbamazepine</a>, <a href="https://publications.waset.org/abstracts/search?q=industry" title=" industry"> industry</a> </p> <a href="https://publications.waset.org/abstracts/22500/carbamazepine-co-crystal-screening-with-dicarboxylic-acids-co-crystal-formers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22500.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">357</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">1728</span> Liquid Crystal Elastomers as Light-Driven Star-Shaped Microgripper</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Indraj%20Singh">Indraj Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Xuan%20Lee"> Xuan Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Chieh%20Cheng"> Yu-Chieh Cheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scientists are very keen on biomimetic research that mimics biological species to micro-robotic devices with the novel functionalities and accessibility. The source of inspiration is the complexity, sophistication, and intelligence of the biological systems. In this work, we design a light-driven star-shaped microgripper, an autonomous soft device which can change the shape under the external stimulus such as light. The design is based on light-responsive Liquid Crystal Elastomers which fabricated onto the polymer coated aligned substrate. The change in shape, controlled by the anisotropicity and the molecular orientation of the Liquid Crystal Elastomer, based on the external stimulus. This artificial star-shaped microgripper is capable of autonomous closure and capable to grab the objects in response to an external stimulus. This external stimulus-responsive materials design, based on soft active smart materials, provides a new approach to autonomous, self-regulating optical systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal%20elastomers" title="liquid crystal elastomers">liquid crystal elastomers</a>, <a href="https://publications.waset.org/abstracts/search?q=microgripper" title=" microgripper"> microgripper</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20materials" title=" smart materials"> smart materials</a>, <a href="https://publications.waset.org/abstracts/search?q=robotics" title=" robotics"> robotics</a> </p> <a href="https://publications.waset.org/abstracts/95169/liquid-crystal-elastomers-as-light-driven-star-shaped-microgripper" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95169.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">140</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">1727</span> Model Predictive Control Using Thermal Inputs for Crystal Growth Dynamics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Takashi%20Shimizu">Takashi Shimizu</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomoaki%20Hashimoto"> Tomoaki Hashimoto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, crystal growth technologies have made progress by the requirement for the high quality of crystal materials. To control the crystal growth dynamics actively by external forces is useuful for reducing composition non-uniformity. In this study, a control method based on model predictive control using thermal inputs is proposed for crystal growth dynamics of semiconductor materials. The control system of crystal growth dynamics considered here is governed by the continuity, momentum, energy, and mass transport equations. To establish the control method for such thermal fluid systems, we adopt model predictive control known as a kind of optimal feedback control in which the control performance over a finite future is optimized with a performance index that has a moving initial time and terminal time. The objective of this study is to establish a model predictive control method for crystal growth dynamics of semiconductor materials. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=model%20predictive%20control" title="model predictive control">model predictive control</a>, <a href="https://publications.waset.org/abstracts/search?q=optimal%20control" title=" optimal control"> optimal control</a>, <a href="https://publications.waset.org/abstracts/search?q=process%20control" title=" process control"> process control</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20growth" title=" crystal growth"> crystal growth</a> </p> <a href="https://publications.waset.org/abstracts/88644/model-predictive-control-using-thermal-inputs-for-crystal-growth-dynamics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88644.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">359</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">1726</span> A Closed-Form Solution and Comparison for a One-Dimensional Orthorhombic Quasicrystal and Crystal Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arpit%20Bhardwaj">Arpit Bhardwaj</a>, <a href="https://publications.waset.org/abstracts/search?q=Koushik%20Roy"> Koushik Roy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The work includes derivation of the exact-closed form solution for simply supported quasicrystal and crystal plates by using propagator matrix method under surface loading and free vibration. As a numerical example a quasicrystal and a crystal plate are considered, and after investigation, the variation of displacement and stress ﬁelds along the thickness of these two plates are presented. Further, it includes analyzing the displacement and stress ﬁelds for two plates having two different stacking arrangement, i.e., QuasiCrystal/Crystal/QuasiCrystal and Crystal/QuasiCrystal/Crystal and comparing their results. This will not only tell us the change in the behavior of displacement and stress ﬁelds in two different materials but also how these get changed after trying their different combinations. For the free vibration case, Crystal and Quasicrystal plates along with their different stacking arrangements are considered, and displacements are plotted in all directions for different Mode Shapes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=free%20vibration" title="free vibration">free vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=multilayered%20plates" title=" multilayered plates"> multilayered plates</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20loading" title=" surface loading"> surface loading</a>, <a href="https://publications.waset.org/abstracts/search?q=quasicrystals" title=" quasicrystals"> quasicrystals</a> </p> <a href="https://publications.waset.org/abstracts/84780/a-closed-form-solution-and-comparison-for-a-one-dimensional-orthorhombic-quasicrystal-and-crystal-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84780.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">147</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">1725</span> Grain Selection in Spiral Grain Selectors during Casting Single-Crystal Turbine Blades</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Javahar">M. Javahar</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20B.%20Dong"> H. B. Dong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Single crystal components manufactured using Ni-base Superalloys are routinely used in the hot sections of aero engines and industrial gas turbines due to their outstanding high temperature strength, toughness and resistance to degradation in corrosive and oxidative environments. To control the quality of the single crystal turbine blades, particular attention has been paid to grain selection, which is used to obtain the single crystal morphology from a plethora of columnar grains. For this purpose, different designs of grain selectors are employed and the most common type is the spiral grain selector. A typical spiral grain selector includes a starter block and a spiral (helix) located above. It has been found that the grains with orientation well aligned to the thermal gradient survive in the starter block by competitive grain growth while the selection of the single crystal grain occurs in the spiral part. In the present study, 2D spiral selectors with different geometries were designed and produced using a state-of-the-art Bridgeman Directional Solidification casting furnace to investigate the competitive growth during grain selection in 2d grain selectors. The principal advantage of using a 2-D selector is to facilitate the wax injection process in investment casting by enabling significant degree of automation. The automation within the process can be derived by producing 2D grain selector wax patterns parts using a split die (metal mold model) coupled with wax injection stage. This will not only produce the part with high accuracy but also at an acceptable production rate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=grain%20selector" title="grain selector">grain selector</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20crystal" title=" single crystal"> single crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=directional%20solidification" title=" directional solidification"> directional solidification</a>, <a href="https://publications.waset.org/abstracts/search?q=CMSX-4%20superalloys" title=" CMSX-4 superalloys"> CMSX-4 superalloys</a>, <a href="https://publications.waset.org/abstracts/search?q=investment%20casting" title=" investment casting "> investment casting </a> </p> <a href="https://publications.waset.org/abstracts/29060/grain-selection-in-spiral-grain-selectors-during-casting-single-crystal-turbine-blades" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29060.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">587</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">1724</span> Characterization of Pure Nickel Coatings Fabricated under Pulse Current Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Sajjadnejad">M. Sajjadnejad</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Omidvar"> H. Omidvar</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Javanbakht"> M. Javanbakht</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mozafari"> A. Mozafari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pure nickel coatings have been successfully electrodeposited on copper substrates by the pulse plating technique. The influence of current density, duty cycle and pulse frequency on the surface morphology, crystal orientation, and microhardness was determined. It was found that the crystallite size of the deposit increases with increasing current density and duty cycle. The crystal orientation progressively changed from a random texture at 1 A/dm2 to (200) texture at 10 A/dm2. Increasing pulse frequency resulted in increased texture coefficient and peak intensity of (111) reflection. An increase in duty cycle resulted in considerable increase in texture coefficient and peak intensity of (311) reflection. Coatings obtained at high current densities and duty cycles present a mixed morphology of small and large grains. Maximum microhardness of 193 Hv was achieved at 4 A/dm2, 10 Hz and duty cycle of 50%. Nickel coatings with (200) texture are ductile while (111) texture improves the microhardness of the coatings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=current%20density" title="current density">current density</a>, <a href="https://publications.waset.org/abstracts/search?q=duty%20cycle" title=" duty cycle"> duty cycle</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a>, <a href="https://publications.waset.org/abstracts/search?q=pulse%20frequency" title=" pulse frequency"> pulse frequency</a> </p> <a href="https://publications.waset.org/abstracts/36308/characterization-of-pure-nickel-coatings-fabricated-under-pulse-current-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36308.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">369</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1723</span> A Study on Determining Market Orientation, Innovation Orientation and Firm Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emel%20Gelmez">Emel Gelmez</a>, <a href="https://publications.waset.org/abstracts/search?q=Derya%20%C3%96zilhan"> Derya Özilhan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the relationship between market orientation, innovation orientation and firm performance in the hotel enterprises in Konya was examined. Research data was obtained by survey method and the research was conducted on the enterprises operating in tourism business in Konya. Hypothesis were tested in terms of the main aim of the present study. According to the findings it was determined that there is a positive and significant relationship between each parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=firm%20performance" title="firm performance">firm performance</a>, <a href="https://publications.waset.org/abstracts/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=innovation%20orientation" title=" innovation orientation"> innovation orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=market%20orientation" title=" market orientation"> market orientation</a> </p> <a href="https://publications.waset.org/abstracts/29148/a-study-on-determining-market-orientation-innovation-orientation-and-firm-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29148.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">356</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">1722</span> A Unified Constitutive Model for the Thermoplastic/Elastomeric-Like Cyclic Response of Polyethylene with Different Crystal Contents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Baqqal">A. Baqqal</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Abduhamid"> O. Abduhamid</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Abdul-Hameed"> H. Abdul-Hameed</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Messager"> T. Messager</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Ayoub"> G. Ayoub</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this contribution, the effect of crystal content on the cyclic response of semi-crystalline polyethylene is studied over a large strain range. Experimental observations on a high-density polyethylene with 72% crystal content and an ultralow density polyethylene with 15% crystal content are reported. The cyclic stretching does appear a thermoplastic-like response for high crystallinity and an elastomeric-like response for low crystallinity, both characterized by a stress-softening, a hysteresis and a residual strain, whose amount depends on the crystallinity and the applied strain. Based on the experimental observations, a unified viscoelastic-viscoplastic constitutive model capturing the polyethylene cyclic response features is proposed. A two-phase representation of the polyethylene microstructure allows taking into consideration the effective contribution of the crystalline and amorphous phases to the intermolecular resistance to deformation which is coupled, to capture the strain hardening, to a resistance to molecular orientation. The polyethylene cyclic response features are captured by introducing evolution laws for the model parameters affected by the microstructure alteration due to the cyclic stretching. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyclic%20loading%20unloading" title="cyclic loading unloading">cyclic loading unloading</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethylene" title=" polyethylene"> polyethylene</a>, <a href="https://publications.waset.org/abstracts/search?q=semi-crystalline%20polymer" title=" semi-crystalline polymer"> semi-crystalline polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=viscoelastic-viscoplastic%20constitutive%20model" title=" viscoelastic-viscoplastic constitutive model"> viscoelastic-viscoplastic constitutive model</a> </p> <a href="https://publications.waset.org/abstracts/80248/a-unified-constitutive-model-for-the-thermoplasticelastomeric-like-cyclic-response-of-polyethylene-with-different-crystal-contents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80248.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">224</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">1721</span> The Catalytic Activity of CU2O Microparticles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kanda%20Wongwailikhit">Kanda Wongwailikhit</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Copper (I) oxide microparticles with the morphology of cubic and hollow sphere were synthesized with the assistance of a surfactant as the shape controller. Both particles were then subjected to a study of the catalytic activity and the results of shape effects of catalysts on rate of catalytic reaction was observed. The decolorizing reaction of crystal violet and sodium hydroxide was chosen and the decrease of reactant with respect to time was measured using a spectrophotometer. The result revealed that morphology of the crystal had no effect on the catalytic activity for the crystal violet reaction but contributed to total surface area predominantly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=copper%20%28I%29%20oxide" title="copper (I) oxide">copper (I) oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=catalytic%20activity" title=" catalytic activity"> catalytic activity</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20violet" title=" crystal violet"> crystal violet</a> </p> <a href="https://publications.waset.org/abstracts/23861/the-catalytic-activity-of-cu2o-microparticles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23861.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">503</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">1720</span> Applying the Crystal Model Approach on Light Nuclei for Calculating Radii and Density Distribution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Amar">A. Amar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A new model, namely the crystal model, has been modified to calculate the radius and density distribution of light nuclei up to ⁸Be. The crystal model has been modified according to solid-state physics, which uses the analogy between nucleon distribution and atoms distribution in the crystal. The model has analytical analysis to calculate the radius where the density distribution of light nuclei has obtained from analogy of crystal lattice. The distribution of nucleons over crystal has been discussed in a general form. The equation that has been used to calculate binding energy was taken from the solid-state model of repulsive and attractive force. The numbers of the protons were taken to control repulsive force, where the atomic number was responsible for the attractive force. The parameter has been calculated from the crystal model was found to be proportional to the radius of the nucleus. The density distribution of light nuclei was taken as a summation of two clusters distribution as in ⁶Li=alpha+deuteron configuration. A test has been done on the data obtained for radius and density distribution using double folding for d+⁶,⁷Li with M3Y nucleon-nucleon interaction. Good agreement has been obtained for both the radius and density distribution of light nuclei. The model failed to calculate the radius of ⁹Be, so modifications should be done to overcome discrepancy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nuclear%20physics" title="nuclear physics">nuclear physics</a>, <a href="https://publications.waset.org/abstracts/search?q=nuclear%20lattice" title=" nuclear lattice"> nuclear lattice</a>, <a href="https://publications.waset.org/abstracts/search?q=study%20nucleus%20as%20crystal" title=" study nucleus as crystal"> study nucleus as crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=light%20nuclei%20till%20to%20%E2%81%B8Be" title=" light nuclei till to ⁸Be"> light nuclei till to ⁸Be</a> </p> <a href="https://publications.waset.org/abstracts/142183/applying-the-crystal-model-approach-on-light-nuclei-for-calculating-radii-and-density-distribution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142183.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">176</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">1719</span> Phase Diagram Including a Negative Pressure Region for a Thermotropic Liquid Crystal in a Metal Berthelot Tube</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Hiro">K. Hiro</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Wada"> T. Wada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermodynamic properties of liquids under negative pressures are interesting and important in fields of scienceand technology. Here, phase transitions of a thermotropic liquid crystal are investigatedin a range from positive to negative pressures with a metal Berthelot tube using a commercial pressure transducer.Two co-existinglines, namely crystal (Kr) – nematic (N), and isotropic liquid (I) - nematic (N) lines, weredrawn in a pressure - temperature plane. The I-N line was drawn to ca. -5 (MPa). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Berthelot%20method" title="Berthelot method">Berthelot method</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal" title=" liquid crystal"> liquid crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20pressure" title=" negative pressure"> negative pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20transitions" title=" phase transitions"> phase transitions</a> </p> <a href="https://publications.waset.org/abstracts/6503/phase-diagram-including-a-negative-pressure-region-for-a-thermotropic-liquid-crystal-in-a-metal-berthelot-tube" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6503.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">403</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1718</span> Synthesis and Crystal Structure of a Cu(II) Complex of a Pyridine-Naphthoimidazole-Based Ligand </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shuang%20Zhao">Shuang Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Shintaro%20Ito"> Shintaro Ito</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoshihiro%20Ohba"> Yoshihiro Ohba</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiroshi%20Katagiri"> Hiroshi Katagiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present the synthesis and single-crystal X-ray crystallography of a Cu(II) complex(bmn-bpy) of a pyridine-naphthoimidazole-based ligand containing two naphthoimidazoles as the chromophores and a vacant coordination site on Cu(II). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synthesis" title="synthesis">synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=Cu%28II%29%20complex" title=" Cu(II) complex"> Cu(II) complex</a>, <a href="https://publications.waset.org/abstracts/search?q=single-crystal%20X-ray%20crystallography" title=" single-crystal X-ray crystallography"> single-crystal X-ray crystallography</a> </p> <a href="https://publications.waset.org/abstracts/3029/synthesis-and-crystal-structure-of-a-cuii-complex-of-a-pyridine-naphthoimidazole-based-ligand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3029.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">375</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">1717</span> Quartz Crystal Microbalance Holder Design for On-Line Sensing in Liquid Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Amer">M. A. Amer</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20A.%20Ch%C3%A1vez"> J. A. Chávez</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20J.%20Garc%C3%ADa-Hern%C3%A1ndez"> M. J. García-Hernández</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Salazar"> J. Salazar</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Tur%C3%B3"> A. Turó</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the design of a QCM sensor for liquid media measurements in vertical position is described. A rugged and low-cost proof holder has been designed, the cost of which is significantly lower than those of traditional commercial holders. The crystal is not replaceable but it can be easily cleaned. Its small volume permits to be used by dipping it in the liquid with the desired location and orientation. The developed design has been experimentally validated by measuring changes in the resonance frequency and resistance of the QCM sensor immersed vertically in different calibrated aqueous glycerol solutions. The obtained results show a great agreement with the Kanazawa theoretical expression. Consequently, the designed QCM sensor would be appropriate for sensing applications in liquids, and might take part of a future on-line multichannel low-cost QCM-based measurement system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=holder%20design" title="holder design">holder design</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-media%20measurements" title=" liquid-media measurements"> liquid-media measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-channel%20measurements" title=" multi-channel measurements"> multi-channel measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=QCM" title=" QCM"> QCM</a> </p> <a href="https://publications.waset.org/abstracts/41987/quartz-crystal-microbalance-holder-design-for-on-line-sensing-in-liquid-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41987.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">382</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">1716</span> Applying the Crystal Model to Different Nuclear Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Amar">A. Amar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The angular distributions of the nuclear systems under consideration have been analyzed in the framework of the optical model (OM), where the real part was taken in the crystal model form. A crystal model (CM) has been applied to deuteron elastically scattered by ⁶,⁷Li and ⁹Be. A crystal model (CM) + distorted-wave Born approximation (DWBA) + dynamic polarization potential (DPP) potential has been applied to deuteron elastically scattered by ⁶,⁷Li and 9Be. Also, a crystal model has been applied to ⁶Li elastically scattered by ¹⁶O and ²⁸Sn in addition to the ⁷Li+⁷Li system and the ¹²C(alpha,⁸Be) ⁸Be reaction. The continuum-discretized coupled-channels (CDCC) method has been applied to the ⁷Li+⁷Li system and agreement between the crystal model and the continuum-discretized coupled-channels (CDCC) method has been observed. In general, the models succeeded in reproducing the differential cross sections at the full angular range and for all the energies under consideration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optical%20model%20%28OM%29" title="optical model (OM)">optical model (OM)</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20model%20%28CM%29" title=" crystal model (CM)"> crystal model (CM)</a>, <a href="https://publications.waset.org/abstracts/search?q=distorted-wave%20born%20approximation%20%28DWBA%29" title=" distorted-wave born approximation (DWBA)"> distorted-wave born approximation (DWBA)</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20polarization%20potential%20%28DPP%29" title=" dynamic polarization potential (DPP)"> dynamic polarization potential (DPP)</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20continuum-discretized%20coupled-channels%20%28CDCC%29%20method" title=" the continuum-discretized coupled-channels (CDCC) method"> the continuum-discretized coupled-channels (CDCC) method</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20deuteron%20elastically%20scattered%20by%20%E2%81%B6" title=" and deuteron elastically scattered by ⁶"> and deuteron elastically scattered by ⁶</a>, <a href="https://publications.waset.org/abstracts/search?q=%E2%81%B7Li%20and%20%E2%81%B9Be" title="⁷Li and ⁹Be">⁷Li and ⁹Be</a> </p> <a href="https://publications.waset.org/abstracts/177307/applying-the-crystal-model-to-different-nuclear-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177307.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">79</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">1715</span> Poly (L-Lysine)-Coated Liquid Crystal Droplets for Sensitive Detection of DNA and Its Applications in Controlled Release of Drug Molecules</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Indu%20Verma">Indu Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Santanu%20Kumar%20Pal"> Santanu Kumar Pal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Interactions between DNA and adsorbed Poly (L-lysine) (PLL) on liquid crystal (LC) droplets were investigated using polarizing optical microcopy (POM) and epi-fluorescence microscopy. Earlier, we demonstrated that adsorption of PLL to the LC/aqueous interface resulted in homeotropic orientation of the LC and thus exhibited a radial configuration of the LC confined within the droplets. Subsequent adsorption of DNA (single stranded DNA/double stranded DNA) at PLL coated LC droplets was found to trigger a LC reorientation within the droplets leading to pre-radial/bipolar configuration of those droplets. To our surprise, subsequent exposure of complementary ssDNA (c-ssDNA) to ssDNA/ adsorbed PLL modified LC droplets did not cause the LC reorientation. This is likely due to the formation of polyplexes (DNA-PLL complex) as confirmed by fluorescence microscopy and atomic force microscopy. In addition, dsDNA adsorbed PLL droplets have been found to be effectively used to displace (controlled release) propidium iodide (a model drug) encapsulated within dsDNA over time. These observations suggest the potential for a label free droplet based LC detection system that can respond to DNA and may provide a simple method to develop DNA-based drug nano-carriers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DNA%20biosensor" title="DNA biosensor">DNA biosensor</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20delivery" title=" drug delivery"> drug delivery</a>, <a href="https://publications.waset.org/abstracts/search?q=interfaces" title=" interfaces"> interfaces</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal%20droplets" title=" liquid crystal droplets"> liquid crystal droplets</a> </p> <a href="https://publications.waset.org/abstracts/81656/poly-l-lysine-coated-liquid-crystal-droplets-for-sensitive-detection-of-dna-and-its-applications-in-controlled-release-of-drug-molecules" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81656.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">298</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">1714</span> Effect of Chemical Additive on Fixed Abrasive Polishing of LBO Crystal with Non-Water Based Slurry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jun%20Li">Jun Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenze%20Wang"> Wenze Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhanggui%20Hu"> Zhanggui Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yongwei%20Zhu"> Yongwei Zhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dunwen%20Zuo"> Dunwen Zuo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Non-water based fixed abrasive polishing was adopted to manufacture LBO crystal for nano precision surface quality because of its deliquescent. Ethyl alcohol was selected as the non-water based slurry solvent and ethanediamine, lactic acid, hydrogen peroxide were add in the slurry as a chemical additive, respectively. Effect of different additives with non-water based slurry on material removal rate, surface topography, microscopic appearances and surface roughness were investigated in fixed abrasive polishing of LBO crystal. The results show the best surface quality of LBO crystal with surface roughness Sa 8.2 nm and small damages was obtained by non-water based slurry with lactic acid. Non-water based fixed abrasive polishing can achieve nano precision surface quality of LBO crystal with high material removal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=non-water%20based%20slurry" title="non-water based slurry">non-water based slurry</a>, <a href="https://publications.waset.org/abstracts/search?q=LBO%20crystal" title=" LBO crystal"> LBO crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed%20abrasive%20polishing" title=" fixed abrasive polishing"> fixed abrasive polishing</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20roughness" title=" surface roughness"> surface roughness</a> </p> <a href="https://publications.waset.org/abstracts/20129/effect-of-chemical-additive-on-fixed-abrasive-polishing-of-lbo-crystal-with-non-water-based-slurry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20129.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">473</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1713</span> The Effect of the Crystal Field Interaction on the Critical Temperatures and the Sublattice Magnetizations of a Mixedspin-3/2 and Spin-5/2 Ferromagnetic System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fathi%20Abubrig">Fathi Abubrig</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Delfag"> Mohamed Delfag</a>, <a href="https://publications.waset.org/abstracts/search?q=Suad%20Abuzariba"> Suad Abuzariba </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of the crystal field interactions on the mixed spin-3/2 and spin-5/2 ferromagnetic Ising system is considered by using the mean field theory based on Bogoliubov inequality for the Gibbs free energy. The ground-state phase diagram is constructed, the phase diagrams of the second-order critical temperatures are obtained, and the thermal variation of the sublattice magnetizations is investigated in detail. We find some interesting phenomena for the sublattice magnetizations at particular values of the crystal field interactions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20field" title="crystal field">crystal field</a>, <a href="https://publications.waset.org/abstracts/search?q=Ising%20system" title=" Ising system"> Ising system</a>, <a href="https://publications.waset.org/abstracts/search?q=ferromagnetic" title=" ferromagnetic"> ferromagnetic</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetization" title=" magnetization"> magnetization</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20diagrams" title=" phase diagrams"> phase diagrams</a> </p> <a href="https://publications.waset.org/abstracts/5406/the-effect-of-the-crystal-field-interaction-on-the-critical-temperatures-and-the-sublattice-magnetizations-of-a-mixedspin-32-and-spin-52-ferromagnetic-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5406.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">486</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">1712</span> Sorption of Crystal Violet from Aqueous Solution Using Chitosan−Charcoal Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kingsley%20Izuagbe%20Ikeke">Kingsley Izuagbe Ikeke</a>, <a href="https://publications.waset.org/abstracts/search?q=Abayomi%20O.%20Adetuyi"> Abayomi O. Adetuyi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study investigated the removal efficiency of crystal violet from aqueous solution using chitosan-charcoal composite as adsorbent. Deproteination was carried out by placing 200g of powdered snail shell in 4% w/v NaOH for 2hours. The sample was then placed in 1% HCl for 24 hours to remove CaCO3. Deacetylation was done by boiling in 50% NaOH for 2hours. 10% Oxalic acid was used to dissolve the chitosan before mixing with charcoal at 55°C to form the composite. The composite was characterized by Fourier Transform Infra-Red and Scanning Electron Microscopy measurements. The efficiency of adsorption was evaluated by varying pH of the solution, contact time, initial concentration and adsorbent dose. Maximum removal of crystal violet by composite and activated charcoal was attained at pH10 while maximum removal of crystal violet by chitosan was achieved at pH 8. The results showed that adsorption of both dyes followed the pseudo-second-order rate equation and fit the Langmuir and Freundlich isotherms. The data showed that composite was best suited for crystal violet removal and also did relatively well in the removal of alizarin red. Thermodynamic parameters such as enthalpy change (ΔHº), free energy change (ΔGº) and entropy change (ΔSº) indicate that adsorption process of Crystal Violet was endothermic, spontaneous and feasible respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20violet" title="crystal violet">crystal violet</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan%E2%88%92charcoal%20composite" title=" chitosan−charcoal composite"> chitosan−charcoal composite</a>, <a href="https://publications.waset.org/abstracts/search?q=extraction%20process" title=" extraction process"> extraction process</a>, <a href="https://publications.waset.org/abstracts/search?q=sorption" title=" sorption"> sorption</a> </p> <a href="https://publications.waset.org/abstracts/66114/sorption-of-crystal-violet-from-aqueous-solution-using-chitosancharcoal-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66114.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">439</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">1711</span> Enterpreneurial Orientation Dimensions for Sustainable Development in Construction Firms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kudirat%20I.%20Zakariyyah">Kudirat I. Zakariyyah</a>, <a href="https://publications.waset.org/abstracts/search?q=Iniobong%20B.%20John"> Iniobong B. John</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20O.%20Faremi"> Julius O. Faremi</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Adio-Moses"> David Adio-Moses</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the key contributors to firms’ growth, performance, and sustainability is entrepreneurial orientation (EO). Most studies on EO, however, are in other industries than construction and, more often, exploratory. The purpose of this study is thus to create an awareness on entrepreneurial orientation and its dimensions in contracting firms. Considering the need for sustainability, the study thus examined contracting firms’ entrepreneurial orientation dimensions that are required in order to keep pace with the demands for sustainable development. This was done by giving out questionnaires to a sample of 116 respondents from a population of 166 construction firms in Lagos state. Data were collected through a survey and analysed using mean scores and analysis of variance (ANOVA). The result revealed the prevalence of the four dimensions of EO, though in moderate proportion. In addition, the study identified review of organisational structure as the top entrepreneurial orientation dimension needed for sustainable development. The study concludes that the firms should identify the existing orientation dimensions and its relevance with sustainability so as to be able to know the required review that will be appropriate in the industry. It is recommended that the firms need to do more on raising the level of prevalence of the various orientation dimensions in order to achieve the merits of the different constructs of sustainability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=construction" title="construction">construction</a>, <a href="https://publications.waset.org/abstracts/search?q=culture" title=" culture"> culture</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurial-orientation" title=" entrepreneurial-orientation"> entrepreneurial-orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=dimension" title=" dimension"> dimension</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/115907/enterpreneurial-orientation-dimensions-for-sustainable-development-in-construction-firms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115907.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">156</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">1710</span> Propagation of Cos-Gaussian Beam in Photorefractive Crystal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Keshavarz">A. Keshavarz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A physical model for guiding the wave in photorefractive media is studied. Propagation of cos-Gaussian beam as the special cases of sinusoidal-Gaussian beams in photorefractive crystal is simulated numerically by the Crank-Nicolson method in one dimension. Results show that the beam profile deforms as the energy transfers from the center to the tails under propagation. This simulation approach is of significant interest for application in optical telecommunication. The results are presented graphically and discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beam%20propagation" title="beam propagation">beam propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=cos-Gaussian%20beam" title=" cos-Gaussian beam"> cos-Gaussian beam</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=photorefractive%20crystal" title=" photorefractive crystal"> photorefractive crystal</a> </p> <a href="https://publications.waset.org/abstracts/33883/propagation-of-cos-gaussian-beam-in-photorefractive-crystal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33883.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">499</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">1709</span> Determination of the Structural Parameters of Calcium Phosphate for Biomedical Use</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20Magdalena%20M%C3%A9ndez-Gonz%C3%A1lez">María Magdalena Méndez-González</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Garc%C3%ADa%20Rocha"> Miguel García Rocha</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Manuel%20Yermo%20De%20la%20Cruz"> Carlos Manuel Yermo De la Cruz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Calcium phosphate (Ca5(PO4)3(X)) is widely used in orthopedic applications and is widely used as powder and granules. However, their presence in bone is in the form of nanometric needles 60 nm in length with a non-stoichiometric phase of apatite contains CO3-2, Na+, OH-, F-, and other ions in a matrix of collagen fibers. The crystal size, morphology control and interaction with cells are essential for the development of nanotechnology. The structural results of calcium phosphate, synthesized by chemical precipitation with crystal size of 22.85 nm are presented in this paper. The calcium phosphate powders were analyzed by X-ray diffraction, energy dispersive spectroscopy (EDS), infrared spectroscopy and FT-IR transmission electron microscopy. Network parameters, atomic positions, the indexing of the planes and the calculation of FWHM (full width at half maximum) were obtained. The crystal size was also calculated using the Scherer equation d (hkl) = cλ/βcosѲ. Where c is a constant related to the shape of the crystal, the wavelength of the radiation used for a copper anode is 1.54060Å, Ѳ is the Bragg diffraction angle, and β is the width average peak height of greater intensity. Diffraction pattern corresponding to the calcium phosphate called hydroxyapatite phase of a hexagonal crystal system was obtained. It belongs to the space group P63m with lattice parameters a = 9.4394 Å and c = 6.8861 Å. The most intense peak is obtained 2Ѳ = 31.55 (FWHM = 0.4798), with a preferred orientation in 121. The intensity difference between the experimental data and the calculated values is attributable to the temperature at which the sintering was performed. The intensity of the highest peak is at angle 2Ѳ = 32.11. The structure of calcium phosphate obtained was a hexagonal configuration. The intensity changes in the peaks of the diffraction pattern, in the lattice parameters at the corners, indicating the possible presence of a dopant. That each calcium atom is surrounded by a tetrahedron of oxygen and hydrogen was observed by infrared spectra. The unit cell pattern corresponds to hydroxyapatite and transmission electron microscopic crystal morphology corresponding to the hexagonal phase with a preferential growth along the c-plane was obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structure" title="structure">structure</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20phosphate" title=" calcium phosphate"> calcium phosphate</a>, <a href="https://publications.waset.org/abstracts/search?q=metallurgical%20and%20materials%20engineering" title=" metallurgical and materials engineering"> metallurgical and materials engineering</a> </p> <a href="https://publications.waset.org/abstracts/14287/determination-of-the-structural-parameters-of-calcium-phosphate-for-biomedical-use" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14287.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">504</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">1708</span> Interactive Effects of Organizational Learning and Market Orientation on New Product Performance </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qura-tul-aain%20Khair">Qura-tul-aain Khair</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose- The purpose of this paper is to empirically examining the strength of association of responsive market orientation and proactive market orientation with new product performance and exploring the possible moderating role of organizational learning based on contingency theory. Design/methodology/approach- Data for this study was collected from FMCG manufacturing industry and services industry, where customers are in contact frequently and responses are recorded on continuous basis. Sample was collected through convenience sampling. The data collected from different marketing department and sales personnel were analysed using SPSS 16 version. Findings- The paper finds that responsive market orientation is more strongly associated with new product performance. The moderator, organizational learning, plays it significant role on the relationship between responsive market orientation and new product performance. Research limitations/implications- this paper has taken sample from just FMCG industry and service industry, more work can be done regarding how different-markets require different market orientation behaviours. Originality/value- This paper will be useful for foreign business looking for investing and expanding in Pakistan, they can find opportunity to get sustained competitive advantage through exploring the proactive side of market orientation and importance of organizational learning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organizational%20learning" title="organizational learning">organizational learning</a>, <a href="https://publications.waset.org/abstracts/search?q=proactive%20market%20orientation" title=" proactive market orientation"> proactive market orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=responsive%20market%20orientation" title=" responsive market orientation"> responsive market orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=new%20product%20performance" title=" new product performance "> new product performance </a> </p> <a href="https://publications.waset.org/abstracts/1832/interactive-effects-of-organizational-learning-and-market-orientation-on-new-product-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1832.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">382</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">1707</span> Goal Orientation, Learning Strategies and Academic Performance in Adult Distance Learning</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ying%20Zhou">Ying Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Jian-Hua%20Wang"> Jian-Hua Wang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based upon the self-determination theory and self-regulated learning theory, this study examined the predictiveness of goal orientation and self-regulated learning strategies on academic achievement of adult students in distance learning. The results show a positive relation between goal orientation and the use of self-regulated strategies, and academic achievements. A significant and positive indirect relation of mastery goal orientation through self-regulated learning strategies was also found. In addition, results pointed to a positive indirect impact of performance-approach goal orientation on academic achievement. The effort regulation strategy fully mediated this relation. The theoretical and instructional implications are discussed. Interventions can be made to motivate students’ mastery or performance approach goal orientation and help them manage their time or efforts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=goal%20orientation" title="goal orientation">goal orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=self-regulated%20strategies" title=" self-regulated strategies"> self-regulated strategies</a>, <a href="https://publications.waset.org/abstracts/search?q=achievement" title=" achievement"> achievement</a>, <a href="https://publications.waset.org/abstracts/search?q=adult%20distance%20students" title=" adult distance students"> adult distance students</a> </p> <a href="https://publications.waset.org/abstracts/101894/goal-orientation-learning-strategies-and-academic-performance-in-adult-distance-learning" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101894.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">274</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">1706</span> A Crystal Plasticity Approach to Model Dynamic Strain Aging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Burak%20Bal">Burak Bal</a>, <a href="https://publications.waset.org/abstracts/search?q=Demircan%20Canadinc"> Demircan Canadinc</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dynamic strain aging (DSA), resulting from the reorientation of C-Mn clusters in the core of dislocations, can provide a strain hardening mechanism. In addition, in Hadfield steel, negative strain rate sensitivity is observed due to the DSA. In our study, we incorporated dynamic strain aging onto crystal plasticity computations to predict the local instabilities and corresponding negative strain rate sensitivity. Specifically, the material response of Hadfield steel was obtained from monotonic and strain-rate jump experiments under tensile loading. The strain rate range was adjusted from 10⁻⁴ to 10⁻¹s ⁻¹. The crystal plasticity modeling of the material response was carried out based on Voce-type hardening law and corresponding Voce hardening parameters were determined. The solute pinning effect of carbon atom was incorporated to crystal plasticity simulations at microscale level by computing the shear stress contribution imposed on an arrested dislocation by carbon atom. After crystal plasticity simulations with modifying hardening rule, which takes into account the contribution of DSA, it was seen that the model successfully predicts both the role of DSA and corresponding strain rate sensitivity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystal%20plasticity" title="crystal plasticity">crystal plasticity</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20strain%20aging" title=" dynamic strain aging"> dynamic strain aging</a>, <a href="https://publications.waset.org/abstracts/search?q=Hadfield%20steel" title=" Hadfield steel"> Hadfield steel</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20strain%20rate%20sensitivity" title=" negative strain rate sensitivity"> negative strain rate sensitivity</a> </p> <a href="https://publications.waset.org/abstracts/76918/a-crystal-plasticity-approach-to-model-dynamic-strain-aging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76918.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">260</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=crystal%20orientation&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=crystal%20orientation&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=crystal%20orientation&page=4">4</a></li> <li class="page-item"><a class="page-link" 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