维普中文期刊产品整合服务
478篇 您的检索式:作者名="S.H."
    题名 作者 年代 出处 被引量
1克罗恩病:CT小肠成像、MR小肠成像和小肠灌肠造影的比较显示文摘目的前瞻性比较CT和MR小肠成像及小肠灌肠造影3种检查方法发现克罗恩病病人活动性小肠炎症和肠外并发症的准确性。方法机构伦理审查委员会批准本研究计划,并所有参与者知情同意。对连续31例克罗恩病或疑有克罗恩病的病人行CT和MR小肠成像、小肠灌肠造影和回肠结肠镜检查。2位独立的阅片者回顾CT和MR小肠成像及小肠灌肠造影影像以确定活动性末端回肠炎和肠道外并发症的存在。以回结肠镜检查结果作为参考标准,利用受试者工作特性曲线方法来评估CT和MR小肠成像及小肠灌肠造影确定活动性末端回肠炎的准确度。S.S. Lee A.Y. Kim S.K. Yang J. W. Chung S.Y. Kim S.H. Park 孙东辉(译) 万业达(校) 2009国际医学放射学杂志2009,32,4:57
2蛋白质糖基化修饰研究进展显示文摘蛋白质翻译后修饰是蛋白质组学的一个组成部分,而蛋白质糖基化是生命体中最重要的一种蛋白质翻译后修饰之一。糖基化在细胞免疫、信号传导、蛋白翻译调控、蛋白降解等诸多生物过程中起着重要作用。随着蛋白质组学技术的不断发展,糖基化研究也越来越受到广泛的关注。本文综述了糖基化的分类、在生命体中的作用、最新的研究技术及进展。李军 杜鑫 Hosseini Moghaddam S.H. 陈玉银 2009科技通报2009,25,6:26
3CORROSION BEHAVIOR OF A ZIRCONIUM-TITANIUM BASED PHOSPHONIC ACID CONVERSION COATING ON AA6061 ALUMINIUM ALLOY显示文摘变换涂层被在 fluorotitanate/zirconate 酸和氨基的 trimethylene 蘸 AA6061 形成在房间温度的磷的酸(ATMP ) 答案。形成进程和变换涂层的耐蚀性能分别地用电气化学的测试和盐水花测试(SST ) 被调查。电气化学的测试证明 Zr/Ti 和 ATMP 涂层像铬酸盐一样改进 AA6061 的腐蚀抵抗() SST 的结果显示出的 coating.But Zr/Ti 和 ATMP 涂层的腐蚀抵抗不像铬酸盐一样() coating.The 腐蚀区域在 72 以后是不到2%h 。S.H. Wang C.S. Liu F.J. Shan 2008Acta Metallurgica Sinica(English Letters)2008,21,4:11
4Mapping Sea Level Rise Behavior in an Estuarine Delta System:A Case Study along the Shanghai Coast显示文摘H.Q. Cheng J.Y. Chen Z.J. Chen R.L. Ruan G.Q. Xu G. Zeng J.R. Zhu Z.J. Dai X.Y. Chen S.H. Gu X.L. Zhang H.M. Wang 2018Engineering2018,4,1:11
5Experimental and Numerical Investigation on Impact Performance of Carbon Reinforced Aluminum Laminates显示文摘It is known that fiber metal laminates (FML) as one of hybrid materials with thin metal sheets and fiber/epoxy layers have the characteristics of the excellent damage tolerance, fatigue and impact properties with a relatively low density. Therefore, the mechanical components using FML can contribute the enhanced safety level of the sound construction toward the whole body. In this study, the impact performance of carbon reinforced aluminum laminates (CARAL) is investigated by experiments and numerical simulations. Drop weight tests are carried out with the weight of 4.7 kg at the speed of 1 and 2 m/s, respectively. Dynamic non-linear transient analyses are also accomplished using a finite element analysis software, ABAQUS. The experiment results and numerical results are compared with impact load-time histories. Also, energy-time histories are applied to investigate the impact performance of CARAL.S.H. Song Y.S. Byun T.W. Ku W.J. Song J. Kim B.S. Kang 2010Journal of Materials Science & Technology2010,26,4:10
6CORROSION RESISTANCE OF HOT DIP GALVANIZED STEEL PRETREATED WITH BIS-FUNCTIONAL SILANES MODIFIED WITH NANOALUMINA显示文摘热剧降的腐蚀行为电镀了有二度的钢 pretreated --[ triethoxy-silylpropyl ]与氧化铝粒子修改的 tetrasulfide ( BTESPT )是 passiving 电影的 studied.The 腐蚀电阻被 Tafel 极化曲线和在电镀的钢底层上形成的电气化学的阻抗 spectroscopy.The 电影评估被 Fourier 变换描绘红外线的光谱学并且精力对待的热剧降的散X光检查 spectrometry.The 表面形态学电镀了钢预告的处理与 nanoalumina 粒子根据 silane 电影修改了的结果表演减少了阳极并且 cathodic 水流密度,和在测量频率的增加的全部的阻抗,因而为电镀的钢在在与铬酸盐电影和 silane 相比的 NaCl 答案的沉浸期间拍摄的热剧降改进腐蚀保护。F.J. Shan C.S. Liu S.H. Wang G.C. Qi 2008Acta Metallurgica Sinica(English Letters)2008,21,4:9
7重金属离子敏感型聚合物胶体晶体的研究显示文摘以含有双硫键的二丙烯酰胱胺与双丙烯酰胺作为交联剂,与单体丙烯酰胺紫外光引发聚合,嵌入聚苯乙烯胶体晶体,制备了聚丙烯酰胺胶体晶体水凝胶.将水凝胶中双硫键打断形成巯基,利用巯基可与重金属离子偶合的作用,水凝胶体积收缩而改变胶体晶体中胶粒之间的距离,根据胶体晶体带隙位移,可分析水中重金属离子的浓度.紫外可见光反射图谱表明,胶体晶体带隙最大可蓝移约80nm.带隙移动与时间的关系曲线表明,胶体晶体水凝胶对重金属离子有较好的灵敏度.该体系可用于分析铅、锌等重金属离子.戴晔 包华 林嘉平 FOULGER S.H. 2006化学学报2006,64,22:5
8Mixing and segregation of solid particles in a conical spouted bed: Effect of particle size and density显示文摘M. Kiani M.R. Rahimi S.H. Hosseini G. Ahmadi 2017Particuology2017,15,3:5
9Elevated Expressions of 15-Lipoxygenase and Lipoxin A(4) in Children with Acute Poststreptococcal Glomerulonephritis显示文摘Wu, S.H. Liao, P. Y. Yin, P. L. Zhang, Y. M. Dong, L. 2009南京医科大学学报(自然科学版)2009,29,3:5
10FRACTAL RESEARCH ON CRACKS PROPAGATION OF GAS PIPELINE X52 STEEL WELDING LINE UNDER HYDROGEN ENVIRONMENT显示文摘Based on the theory of hydrogen enhanced localized plasticity of the hydrogen induced cracking and considered the effect of residual stress produced by eliminated stress heat treatment, a fractal model of hydrogen induced cinching was presented, and a relationship among the effective surface energy (H), fractal dimension D and stress intensity factor of hydrogen induced cracking, KIH, for welding pipeline under hydrogen environment was set up, from which the relationship of D and KISCC is obtained. The model was verified experimentally to be correct.S.H. Dong , Y.M. Lu, Y. Zhang and Q. Wu (Mechanics Electronic Department, University of Petroleum, Beijing 102200, China) (Department of Material Physics, University of Science and Technology Beijing, Beijing 100083, China) (Yan Shan University, Qinhuangd 2001Acta Metallurgica Sinica(English Letters)2001,14,3:5
11ALLOYING EFFECT OF Ni AND Cr ON THE WETTABILITY OF COPPER ON W SUBSTRATE显示文摘由无柄的落下技术,有 Ni 和 Cr 的增加的 Cu/W 系统的 wettability 在真空空气下面被学习了。wettability 和 W 底层上的铜的弄湿的机制上的 Ni 和 Cr 内容和弄湿的温度的效果详细被调查了。结果证明 W 底层上的 Cu 的弄湿的角度随 Ni 或 Cr 的内容的增加被减少,并且也与提起弄湿的温度减少。SEM, EPMA,和 X 光检查衍射被用来分析 CuNi/W 和 CuCr/W 系统的不同种族的特征。结果表明关于在 Cu-4.0 wt 宠物 Ni/W,金属间化合的阶段 Ni4W 在被猛抛的接口的 2-3 m 有转变层。至于 CuCr/W 系统,没有反应发生在接口。二个因素是 Cr 和 Ni 和渗入温度的内容必须适当地被选择以便控制界面的溶解和反应 Cu-W 合金什么时候被渗入方法准备。X.H. Yang P. Xiao S.H. Liang J.T. Zou Z.K. Fan 2008Acta Metallurgica Sinica(English Letters)2008,21,5:5
12肝脏恶性肿瘤经导管动脉化疗性栓塞术后-过性肝脏密度差异(THAD)系列CT检查的变化显示文摘本研究的目的是研究经导管动脉化疗栓塞术(TACE)引起的一过性肝脏密度差异(THAD)的自然病程变化。对32个月内32例经导管动脉化疗栓塞术治疗后的肝细胞癌病人在系列CT检查中发现的40处THAD进行了回顾性分析。THAD定义为肝脏cT动态扫描(横断位,层厚1.9-8.8cm,平均4.9cm)肝动脉期在碘油堆积灶旁出现的局灶性、一过性、周围肝实质的强化。40处由TACE引发的THAD中,18处(45%)伴有动脉-门静脉瘘(APF),9处(23%)伴有门静脉狭窄(PVS),此外,S.H. Hwang J.S. Yu J. Chung J.J. Chung J.H .Kim K.W. Kim 叶锦棠(译) 唐光健(校) 2008国际医学放射学杂志2008,31,5:4
13用十二胺和油酸浮选菱锌矿的吸附研究显示文摘用Zeta电位、接触角、微量浮选和漫反射FT-IR光谱测量了在不同pH值下不同浓度的硫化钠、十二胺(DDA)和油酸(OA)与菱锌矿的作用。浮选结果表明,在十二胺浓度1.6.10-3mol/L和pH11.5时,浮选回收率和接触角分别提高到94%和115°,研究发现,最佳硫化钠用量为2.6.10-2mol/L。Zeta电位测量显示,纯菱锌矿晶体表面经DDA处理后只有较少的负电荷。在油酸浓度1.1.10-3mol/L和pH10时,油酸浮选的回收率和接触角分别提高到93%和105°。油酸处理菱锌矿表面后,矿物的Zeta电位显示比较负的电荷。用DDA调整后,菱锌矿的FT-IR光谱证实DDA在菱锌矿表面上的吸附,光谱测量表明,硫化钠处理后,该矿物表面部分变为ZnS层。该光谱还证实油酸处理后在菱锌矿表面上形成了锌的油酸盐(油酸锌)。用阳离子和阴离子捕收剂的结果比较表明,两种情况下硫化钠不同的吸附密度揭示了在菱锌矿表面上具有不同程度的疏水性。S.H.霍塞尼 汪镜亮 林森 2006国外金属矿选矿2006,43,12:4
14若干家蚕品种的复壮及比较试验显示文摘对浙江省夏秋蚕品种薪杭,白云,丰1和54A等进行了充血复壮改良,基本稳定后的复壮系与现行生产系进行了生产性能的比较试验。结果表明复壮系在各项性状都有一定的提高,其中龄期经过,各品种的复壮系与生产系之间差别不大,只有薪杭丙和白云丙稍有延长。全茧量和茧层量基本上复壮系都比生产系有所提高。生命率差异比较大,其中薪杭的复壮系低于生产系,差异达到显著水平,白云复壮系略微低于白云甲,但高于白云乙,丰1的复壮系与生产系无明显差异,54A则是复壮系高于生产系。良卵数除薪杭丙比薪杭甲略低外,其他品种的复壮系都比生产系显著提高,有的甚至达到极显著水平。说明复壮系在生产性能上有较大的改良,有一定的推广应用价值。刘光锋 李军 杜鑫 淘涛 傅春红 Hosseini Moghaddam S.H. 陈玉银 2007蚕桑通报2007,38,4:4
15硫砷铜矿的表面性质和可浮性显示文摘本文通过测量硫砷铜矿的Zeta电位、硫砷铜矿电极的静电位和哈利蒙特管试验 ,研究了硫砷铜矿的表面性质和可浮性。Zeta电位 -pH曲线表明 ,在pH 2 -12的范围内 ,硫砷铜矿的Zeta电位为负值 (-2 0mV到 -4 5mV) ,并且在pH 5 5和pH 11处有两个峰。从As-H2 O体系的热力学平衡图和硫砷铜矿的Eh -pH图可以推断 ,硫砷铜矿表面的带电基团是由硫代砷酸盐的平衡反应产生的。在试验的pH值范围内 ,硫砷铜矿没有自然可浮性 ,但是 ,在 pH值为 10时 ,用 0 1mg/l异丙基黄药为捕收剂 ,硫砷铜矿的浮选回收率就可以大于 80 %。这说明 ,硫砷铜矿与溶液界面上的成分取决于硫代砷酸盐的化学状态 ,它使硫砷铜矿的可浮性与其它铜矿物的不同。S.H.卡斯特罗 孙体昌 李长根 2000国外金属矿选矿2000,37,12:4
16Entecavir Monotherapy Is Effective in Suppressing Hepatitis B Virus After Liver Transplantation显示文摘James Fung Cindy Cheung See–Ching Chan Man–Fung Yuen Kenneth S.H. Chok William Sharr Wing–Chiu Dai Albert C.Y. Chan Tan–To Cheung Simon Tsang Banny Lam Ching–Lung Lai Chung–Mau Lo 2011Gastroenterology2011,,4:3
17Correlation of morphology and rheological response of interfacially modified PTT/m-LLDPE blends with varying extent of modification显示文摘S.H. Jafari A. Yavari A. Asadinezhad H.A. Khonakdar F. B?hme 2005Polymer2005,,14:3
18MODELING OF STATIC RECRYSTALLIZATION KINETICS OF Nb-BEARING STEELS显示文摘By using isothermal double hit compression tests and applying the 2% offset method, a new model was developed to predict the microstructural evolution of Nb-bearing steels at temperatures above and below the start temperature of strain-induced precipitation (TP). The TP was developed as a function of true strain, initial austenite grain size and the Nb content. The activation energy of static recrystallization (Qrex) was expressed as a function of the content of different alloy elements. It was found that Nb played the most important role in increasing the value of Qrex. The microstructural observations and measurements confirmed the validity of the model developed in the present investigation.L.Q. Ma Z.Y. Liu S.H. Jiao X.Q. Yuan D. Wu 2006Acta Metallurgica Sinica(English Letters)2006,19,4:3
19SIMULATION OF THE CHANGE OF SINTERING NECK BETWEEN TWO GRAINS IN TWO DIMENSIONS显示文摘A modified two-sphere model of sintering neck has been proposed, wherein three diffusion mechanisms including surface diffusion, grain-boundary diffusion and coupled surface and grain-boundary diffusion are assumed. Sintering neck is appropriately simulated using the modified model. The dynamic change of sintering neck is presented using the simulation. The variational shape of sintering neck in surface diffusion mechanism is continuous, whereas in grain-boundary diffusion mechanism, besides the variational shape of sintering neck being continuous, the center distance between the particles is also assumed to contract. However, the variational shape of sintering neck in coupling diffusion mechanism is integrated using the two diffusion mechanisms mentioned above.Y.Y. Zhu, S.H. Liang*, Z.J. Zhan, P. Xiao, and Z.K. Fan School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048,China 2006Acta Metallurgica Sinica(English Letters)2006,19,6:3
20The largest outbreak of hand; foot and mouth disease in Singapore in 2008: The role of enterovirus 71 and coxsackievirus A strains显示文摘Yan Wu Andrea Yeo M.C. Phoon E.L. Tan C.L. Poh S.H. Quak Vincent T.K. Chow 2010International Journal of Infectious Diseases2010,,:3
返回顶部 每页显示:
共24页 首页 上一页 第1页 下一页 末页 /24 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