Search results for: Jinghua Yin

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Yin</title> <meta name="description" content="Search results for: Jinghua Yin"> <meta name="keywords" content="Jinghua Yin"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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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="Jinghua Yin"> <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> 4</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Jinghua Yin</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Chemical Vapor Deposition (CVD) of Molybdenum Disulphide (MoS2) Monolayers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omar%20Omar">Omar Omar</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuan%20Jun"> Yuan Jun</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Jinghua"> Hong Jinghua</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin%20Chuanhong"> Jin Chuanhong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work molybdenum dioxide (MoO2) and sulphur powders are used to grow MoS2 mono layers at elevated temperatures T≥800 °C. Centimetre scale continues thin films with grain size up to 410 µm have been grown using chemical vapour deposition. To our best knowledge, these domains are the largest that have been grown so far. Advantage of our approach is not only because of the high quality films with large domain size one can produce, but also the procedure is potentially less hazardous than other methods tried. The thin films have been characterized using transmission electron microscopy (TEM), atomic force microscopy (AFM) and Raman spectroscopy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=molybdenum%20disulphide%20%28MoS2%29" title="molybdenum disulphide (MoS2)">molybdenum disulphide (MoS2)</a>, <a href="https://publications.waset.org/abstracts/search?q=monolayers" title=" monolayers"> monolayers</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20vapour%20deposition%20%28CVD%29" title=" chemical vapour deposition (CVD)"> chemical vapour deposition (CVD)</a>, <a href="https://publications.waset.org/abstracts/search?q=growth%20and%20characterization" title=" growth and characterization"> growth and characterization</a> </p> <a href="https://publications.waset.org/abstracts/43757/chemical-vapor-deposition-cvd-of-molybdenum-disulphide-mos2-monolayers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43757.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">328</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Functionalization of Polypropylene with Chiral Monomer for Improving Hemocompatibility</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiaodong%20Xu">Xiaodong Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Zhao"> Dan Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiujuan%20Chang"> Xiujuan Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chunming%20Li"> Chunming Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Huiyun%20Zhou"> Huiyun Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Xin%20Li"> Xin Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Qiang%20Shi"> Qiang Shi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shifang%20Luan"> Shifang Luan</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinghua%20Yin"> Jinghua Yin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polypropylene (PP) is one of the most commonly used plastics because of its low density, outstanding mechanical properties, and low cost. However, its drawbacks such as low surface energy, poor dyeability, lack of chemical functionalities, and poor compatibility with polar polymers and inorganic materials, have restricted the application of PP. To expand its application in biomedical materials, functionalization is considered to be the most effective way. In this study, PP was functionalized with a chiral monomer, (<em>S</em>)-1-acryloylpyrrolidine-2-carboxylic acid ((<em>S</em>)-APCA), by free-radical grafting in the solid phase. The grafting degree of PP-g-APCA was determined by chemical titration method, and the chemical structure of functionalized PP was characterized by FTIR spectroscopy, which confirmed that the chiral monomer (<em>S</em>)-APCA was successfully grafted onto PP. Static water contact angle results suggested that the surface hydrophilicity of PP was significantly improved by solid phase grafting and assistance of surface water treatment. Protein adsorption and platelet adhesion results showed that hemocompatibility of PP was greatly improved by grafting the chiral monomer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=functionalization" title="functionalization">functionalization</a>, <a href="https://publications.waset.org/abstracts/search?q=polypropylene" title=" polypropylene"> polypropylene</a>, <a href="https://publications.waset.org/abstracts/search?q=chiral%20monomer" title=" chiral monomer"> chiral monomer</a>, <a href="https://publications.waset.org/abstracts/search?q=hemocompatibility" title=" hemocompatibility"> hemocompatibility</a> </p> <a href="https://publications.waset.org/abstracts/67964/functionalization-of-polypropylene-with-chiral-monomer-for-improving-hemocompatibility" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67964.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">381</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Analytical Method for Seismic Analysis of Shaft-Tunnel Junction under Longitudinal Excitations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jinghua%20Zhang">Jinghua Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Shaft-tunnel junction is a typical case of the structural nonuniformity in underground structures. The shaft and the tunnel possess greatly different structural features. Even under uniform excitations, they tend to behave discrepantly. Studies on shaft-tunnel junctions are mainly performed numerically. Shaking table tests are also conducted. Although many numerical and experimental data are obtained, an analytical solution still has great merits of gaining more insights into the shaft-tunnel problem. This paper will try to remedy the situation. Since the seismic responses of shaft-tunnel junctions are very related to directions of the excitations, they are studied in two scenarios: the longitudinal-excitation scenario and the transverse-excitation scenario. The former scenario will be addressed in this paper. Given that responses of the tunnel are highly dependent on the shaft, the analytical solutions would be developed firstly for the vertical shaft. Then, the seismic responses of the tunnel would be discussed. Since vertical shafts bear a resemblance to rigid caissons, the solution proposed in this paper is derived by introducing terms of shaft-tunnel and soil-tunnel interactions into equations originally developed for rigid caissons. The validity of the solution is examined by a validation model computed by finite element method. The mutual influence between the shaft and the tunnel is introduced. The soil-structure interactions are discussed parametrically based on the proposed equations. The shaft-tunnel relative displacement and the soil-tunnel relative stiffness are found to be the most important parameters affecting the magnitudes and distributions of the internal forces of the tunnel. A hinge-joint at the shaft-tunnel junction could significantly reduce the degree of stress concentration compared with a rigid joint. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytical%20solution" title="analytical solution">analytical solution</a>, <a href="https://publications.waset.org/abstracts/search?q=longitudinal%20excitation" title=" longitudinal excitation"> longitudinal excitation</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20validation" title=" numerical validation "> numerical validation </a>, <a href="https://publications.waset.org/abstracts/search?q=shaft-tunnel%20junction" title=" shaft-tunnel junction "> shaft-tunnel junction </a> </p> <a href="https://publications.waset.org/abstracts/112550/analytical-method-for-seismic-analysis-of-shaft-tunnel-junction-under-longitudinal-excitations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112550.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">160</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Structure Domains Tuning Magnetic Anisotropy and Motivating Novel Electric Behaviors in LaCoO₃ Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dechao%20Meng">Dechao Meng</a>, <a href="https://publications.waset.org/abstracts/search?q=Yongqi%20Dong"> Yongqi Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Qiyuan%20Feng"> Qiyuan Feng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhangzhang%20Cui"> Zhangzhang Cui</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiang%20Hu"> Xiang Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Haoliang%20Huang"> Haoliang Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Genhao%20Liang"> Genhao Liang</a>, <a href="https://publications.waset.org/abstracts/search?q=Huanhua%20Wang"> Huanhua Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hua%20Zhou"> Hua Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Hawoong%20Hong"> Hawoong Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinghua%20Guo"> Jinghua Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Qingyou%20Lu"> Qingyou Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaofang%20Zhai"> Xiaofang Zhai</a>, <a href="https://publications.waset.org/abstracts/search?q=Yalin%20Lu"> Yalin Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Great efforts have been taken to reveal the intrinsic origins of emerging ferromagnetism (FM) in strained LaCoO₃ (LCO) films. However, some macro magnetic performances of LCO are still not well understood and even controversial, such as magnetic anisotropy. Determining and understanding magnetic anisotropy might help to find the true causes of FM in turn. Perpendicular magnetic anisotropy (PMA) was the first time to be directly observed in high-quality LCO films with different thickness. The in-plane (IP) and out of plane (OOP) remnant magnetic moment ratio of 30 unit cell (u.c.) films is as large as 20. The easy axis lays in the OOP direction with an IP/OOP coercive field ratio of 10. What's more, the PMA could be simply tuned by changing the thickness. With the thickness increases, the IP/OOP magnetic moment ratio remarkably decrease with magnetic easy axis changing from OOP to IP. Such a huge and tunable PMA performance exhibit strong potentials in fundamental researches or applications. What causes PMA is the first concern. More OOP orbitals occupation may be one of the micro reasons of PMA. A cluster-like magnetic domain pattern was found in 30 u.c. with no obvious color contrasts, similar to that of LaAlO₃/SrTiO₃ films. And the nanosize domains could not be totally switched even at a large OOP magnetic field of 23 T. It indicates strong IP characters or none OOP magnetism of some clusters. The IP magnetic domains might influence the magnetic performance and help to form PMA. Meanwhile some possible nonmagnetic clusters might be the reason why the measured moments of LCO films are smaller than the calculated values 2 μB/Co, one of the biggest confusions in LCO films.What tunes PMA seems much more interesting. Totally different magnetic domain patterns were found in 180 u.c. films with cluster magnetic domains surrounded by < 110 > cross-hatch lines. These lines were regarded as structure domain walls (DWs) determined by 3D reciprocal space mapping (RSM). Two groups of in-plane features with fourfold symmetry were observed near the film diffraction peaks in (002) 3D-RSM. One is along < 110 > directions with a larger intensity, which is well match the lines on the surfaces. The other is much weaker and along < 100 > directions, which is from the normal lattice titling of films deposited on cubic substrates. The < 110 > domain features obtained from (103) and (113) 3D-RSMs exhibit similar evolution of the DWs percentages and magnetic behavior. Structure domains and domain walls are believed to tune PMA performances by transform more IP magnetic moments to OOP. Last but not the least, thick films with lots of structure domains exhibit different electrical transport behaviors. A metal-to-insulator transition (MIT) and an angular dependent negative magnetic resistivity were observed near 150 K, higher than FM transition temperature but similar to that of spin-orbital coupling related 1/4 order diffraction peaks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structure%20domain" title="structure domain">structure domain</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20anisotropy" title=" magnetic anisotropy"> magnetic anisotropy</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20domain" title=" magnetic domain"> magnetic domain</a>, <a href="https://publications.waset.org/abstracts/search?q=domain%20wall" title=" domain wall"> domain wall</a>, <a href="https://publications.waset.org/abstracts/search?q=3D-RSM" title=" 3D-RSM"> 3D-RSM</a>, <a href="https://publications.waset.org/abstracts/search?q=strain" title=" strain"> strain</a> </p> <a href="https://publications.waset.org/abstracts/84468/structure-domains-tuning-magnetic-anisotropy-and-motivating-novel-electric-behaviors-in-lacoo3-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84468.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">153</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> 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Search results for: Jinghua Yin