维普中文期刊产品整合服务
9篇 您的检索式:作者名="J.Liang"
    题名 作者 年代 出处 被引量
1Study of CPW fed circular disc monopole antenna for ultra wideband applications显示文摘J.Liang L.Gua C.C.Chiau X.Chen C.G.Parini 0,,06:1
2Reliability analysis of climate change of tropical cyclone activity over the western North Pacific显示文摘Ren E J.Liang G.Wu W.Dong and X.Yang 0,,:1
3Critical mechanical properties and FEA simulation for crashworthiness assessment of a coarse-grained cast AM50 alloy显示文摘A coarse-grained AM50 alloy was used as a model alloy for investigation of constitutive behaviour,Charpy toughness and effect of stress state on deformation and failure of cast Mg alloys.The results provide critical mechanical properties of a cast AM50 alloy for crashworthiness assessment and development of finite element simulation techniques.For cast Mg alloys,the effect of strain rate and temperature is larger on tensile strength than on compressive strength because twinning is more extensive in compression than in tension.The effect of strain rate on compressive strength is negligible because twinning activity of the cast Mg alloy is dominant.The load vs.deflection of Charpy specimens were measured for modelling,and the effect of loading rate and temperature on load of Charpy specimens is very small because part of the specimen is in compression.The equivalent strain to fracture of the cylindrical round notched tension specimen decreases with increasing stress triaxiality;though for the flat-grooved plane strain specimen,the equivalent fracture strain remains constant over the range of stress triaxiality investigated.Because the two different specimen geometries give rise to different Lode angle values,the test results show that the Lode angle parameter is an important parameter for deformation and fracture of Mg alloys.Finite element simulations of loading of the cylindrical notched-tension and Charpy specimens were carried out using a Lode-angle dependent von Mises model,and were found to provide a reasonable description of the load-displacement curves measured in the tests.For the flat-grooved plane strain specimens,the computations under-predicted the force-displacement response measured.S.Xu C.H.M.Simha M.Gesing J.Liang J.Lo 2015Journal of Magnesium and Alloys2015,3,3:1
4The natural history of acute hepatitis C: clinical presentation, laboratory findings and treatment outcomes显示文摘R.Loomba M. M.Rivera R.McBurney Y.Park V.Haynes‐Williams B.Rehermann H. J.Alter S. K.Herrine T. J.Liang J. H.Hoofnagle T.Heller 2011Alimentary Pharmacology & Therapeutics2011,,5:1
5商用和工业用发动机发展趋势显示文摘降低排放和改善能耗是决定道路用和非道路用发动机未来发展方向的重要因素。通过采用天然气替代柴油以实现燃料灵活性。为了满足未来的需求,发动机将变得更加复杂。此外,基型机上将采用更先进的附属系统,用来进行回收废热、气态燃料供给、排气后处理及其控制。增加发动机的复杂性将会增大整个动力系统的尺寸、质量及成本。未来发动机发展的另一个关键因素是优化基型机,满足未来的排放法规(包括CO2)要求,通过优化基型机弥补附件增加带来的尺寸、质量和成本的增加。发动机缩缸强化、新材料、减小摩擦、先进增压和燃油喷射系统技术等方面已在轻型车辆领域显示出潜力并已处于具体实施阶段。介绍未来商用和工业用发动机基型机的改进方案及潜力,描述这些技术如何改善商用和工业用基型发动机,以满足未来排放法规及燃油效率要求。M.Franke S.Bhide J.Liang M.Neitz T.Hamm 王晓滕 李研芳 2015国外内燃机2015,47,5:1
6解释渗透率不均衡下降的井壁效应/凝胶滴模型显示文摘许多聚合物和凝胶都可以使水的渗透率降得比油或气的渗透率还要低,但造成渗透率不均衡下降的机理尚不清楚,本文提出了一种综合了“井壁效应”和“凝胶滴”模型的解释,渗透率不均衡下降的诸多方面都可以利用井壁效应模型来解释使用的凝胶是否与润湿相相匹配;也可以通过凝胶滴模型解释出所用的凝胶是否或与非润湿相相匹配,综合模型预测到渗透率不均衡下降的程度会随着非润湿相饱和度的增加而增加,新的实验结果证实了这一预测。J.Liang 高贵生 2002国外石油动态2002,,2:0
7平行束单光子发射成像的定量解析重建显示文摘单光子发射断层成像技术在心血管及脑功能疾病的诊断上具有重要的临床意义。本研究以Kunyansky及以前的研究工作为基础,针对平行束探测模式,推导及建立了有效的解析重建算法,可对噪声、散射、衰减及探测器响应进行同时补偿,用于获取SPECT定量快速成像。数字及Monte Carlo仿真实验表明,所提出的定量解析重建算法是可行的,它极大地改善了重建图像的对比度及分辨率,基本消除了图像中的伪迹。该算法在达到迭代算法精度的同时,计算量却大为降低,与常规滤波反投影重建法近似。卢虹冰 Zhengrong J.Liang Junhai Wen 李刚 刘欣 王舒宜 2005中国生物医学工程学报2005,24,5:0
8EZH2 inhibitors promote β-like cell regeneration in young and adult type 1 diabetes donors显示文摘β-cells are a type of endocrine cell found in pancreatic islets that synthesize,store and release insulin.In type 1 diabetes(T1D),T-cells of the immune system selectively destroy the insulin-producingβ-cells.Destruction of these cells leads to a lifelong dependence on exogenous insulin administration for survival.Consequently,there is an urgent need to identify novel therapies that stimulateβ-cell growth and induceβ-cell function.We and others have shown that pancreatic ductal progenitor cells are a promising source for regeneratingβ-cells for T1D owing to their inherent differentiation capacity.Default transcriptional suppression is refractory to exocrine reaction and tightly controls the regenerative potential by the EZH2 methyltransferase.In the present study,we show that transient stimulation of exocrine cells,derived from juvenile and adult T1D donors to the FDAapproved EZH2 inhibitors GSK126 and Tazemetostat(Taz)influence a phenotypic shift towards aβ-like cell identity.The transition from repressed to permissive chromatin states are dependent on bivalent H3K27me3 and H3K4me3 chromatin modification.Targeting EZH2 is fundamental toβ-cell regenerative potential.Reprogrammed pancreatic ductal cells exhibit insulin production and secretion in response to a physiological glucose challenge ex vivo.These pre-clinical studies underscore the potential of small molecule inhibitors as novel modulators of ductal progenitor differentiation and a promising new approach for the restoration ofβ-like cell function.Keith Al-Hasani Safiya Naina Marikar Harikrishnan Kaipananickal Scott Maxwell Jun Okabe Ishant Khurana Thomas Karagiannis Julia J.Liang Lina Mariana Thomas Loudovaris Thomas Kay Assam El-Osta 2024Signal Transduction and Targeted Therapy2024,9,2:0
9Measurement of^(25)Al+p Resonant Scattering显示文摘Type I X-ray bursts are the most frequently observed thermonuclear explosions in nature[1].They take place on the surface of accreting neutron star in low-mass X-ray binary systems.Hu Jun H.Yamaguchi Xu Shiwei Zhang Ningtao Ma Shaobo Ru Longhui Liu Enqiang Liu Tong S.Hayakawa Yang Lei H.Shimizu D.Kahl C.B.Hamill A.Murphy Su Jun Fang Xiao K.Chae M.Kwag S.Cha N.N.Duy N.K.Uyen D.Kim R.G.Pizzone M.La Cognata S.Cherubini S.Romano A.Tumino J.Liang A.Psaltis M.Sferrazza D.Kim S.Kubono 2019IMP & HIRFL Annual Report2019,,1:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费