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928篇 您的检索式:作者名="Wang, W."
    题名 作者 年代 出处 被引量
1急性缺血性卒中患者早期处理指南:美国心脏协会/美国卒中协会对医疗专业人员的指南(续前)显示文摘7静脉溶栓 7.1静脉rtPA 急性卒中的静脉溶栓治疗现已得到普遍接受。美国FDA于1996年批准静脉应用rtPA,部分基于NINDSrtPA卒中试验结果。Edward C. Jauch Jeffrey L. Saver Harold P. Adams Askiel Bruno J.J. (Buddy) Connors Bart M. Demaerschalk Pooja Khatri Paul W. McMullan Adnan I. Qureshi Kenneth Rosenfield Phillip A. Scott Debbie R. Summers David Z. Wang Max Wintermark Howard Yonas 李海峰(译) 岳耀先(译) 王琦(译) 张贤军(译) 丁晓君(译) 2013国际脑血管病杂志2013,21,8:975
2Formation history and protolith characteristics of granulite facies metamorphic rock in Central Cathaysia deduced from U-Pb and Lu-Hf isotopic studies of single zircon grains显示文摘The petrochemical as well as zircon U-Pb and Lu-Hf isotopic studies of granulite facies metamorphic rock from the Taoxi Group in eastern Nanling Range, Central Cathaysia indicate that its protolith is the sedimentary rock with low maturation index. The clastic materials are mostly from middle Neoproterozoic (~736 Ma) granitoid rocks with minor Neoarchaean and Paleoproterozoic rocks. The timing of this Neoproterozoic magmatism is in agreement with the second period of magmatism widespread surrounding the Yangtze Block. Hf isotopic data indicate that the Neoproterozoic granitoids resulted from the recycled Paleoproterozoic mantle-derived crustal materials. The sedimentary rock was deposited in Late Neoproterozoic Era, and carried into low crust in Early Paleozoic. The partial melting of the meta-sedimentary rock took place at about 480 Ma and subsequently granulite facies metamorphism occurred at ca. 443 Ma. The zircons forming during this time interval (Early Paleozoic) show large Hf isotope variations, and their -Hf(t) values increase from -13.2 to +2.36 with decreasing age, suggesting the injection of mantle-derived materials during partial melting and metamorphism processes in the Early Paleozoic. Calculation results show that this metamorphic rock, if evolved to Mesozoic, has similar isotopic composition to the nearby Mesozoic high Si peraluminous granites, implying that this kind of granulite facies metamorphic rock is probably the source material of some Mesozoic peraluminous granitoids in eastern Nanling Range.YU Jinhai ZHOU Xinmin Y. S. O'Reilly ZHAO Lei W. L. Griffin WANG Rucheng WANG Lijuan CHEN Xiaomin 2005Chinese Science Bulletin2005,50,18:35
3The early Holocene optimum inferred from a high-resolution pollen record of Huguangyan Maar Lake in southern China显示文摘A high-resolution pollen record of the past 13000 a from Huguangyan Maar Lake reveals the vegetation and environment changes in southern China during the Holocene. It shows that (i) pollen percentage of trees and shrubs reached 56% during the early Holocene (11600―7800 cal a BP), of which the pollen percentage of tropical trees reached a maximum at 9500―8000 cal a BP, reflecting a hot and wet envi- ronment; (ii) during the mid-Holocene (7800―4200 cal a BP), the pollen percentage of montane conif- erous trees and herbs increased, while the percentage of tropical-subtropical trees decreased, indi- cating lower temperature and humidity; (iii) in the late Holocene spanning from 4200 to 350 cal a BP, the pollen percentage of herbs and montane conifer increased significantly, indicating a marked decrease of temperature and humidity. Our pollen data reveal that the time period 9500―8000 cal a BP in south- ern China represents a climatic optimum for the Holocene characterized by hot and wet conditions. This is consistent with the Holocene optimum found in lower latitude regions globally. We speculate that strong insolation might cause the northward migration of the ITCZ and subtropical summer mon- soon front, which resulted in an early Holocene optimum in the Huguangyan area. The dry tendency and climate fluctuations of the middle and late Holocene could be associated with a decrease in solar insolation and frequent ENSO event.WANG ShuYun LUE HouYuan LIU JiaQi Joerg F. W. NEGENDANK 2007Chinese Science Bulletin2007,52,20:36
4EGF promoter SNPs, plasma EGF levels and risk of breast cancer in Chinese women显示文摘Wang, Y. 2008南京医科大学学报(自然科学版)2008,28,12:32
5Common Genetic Variants in Pre-MicroRNAs Were Associated With Increased Risk of Breast Cancer in Chinese Women显示文摘Hu, Z. B. Liang, J. Wang, Z. W. Tian, T. Zhou, X. Y. Chen, J. P. Miao, R. F. Wang, Y. Wang, X. R. Shen, H. B. 2009南京医科大学学报(自然科学版)2009,29,4:29
6NUMERICAL SIMULATION OF ROUND TO OVAL ROLLING PROCESS显示文摘Three dimensional thermal-mechanical coupled elasto-plastic FEM has been used for simulation of round to oval single pass rolling. The analysis was conducted using MARC/AUTOFORCE1. 2 code. The material is assumed to be elasto-plastic and it obey the Von Mises yield criterion and Prandtl- Reuss rule. Deformation of the workpiece is simulated in a step-by-step manner,updating the coordinates of material points and the property after each step, so that both nonsteady-state and stendy-state deformation can be simulated. The heat transfter between the workpiece, the rolls, and enviroment and the heat generation due to plastic work and friction force, are considered in the analys- is.Predicted the deformation shape of the workpiece, distributions of strains, stresses, strain rates and temperatures, roll-separating force and roll torque are presented.Y. W. Wang, Y. L. King, D. H. Yuan, S. G. Liu and Z. Y. Yu 1 ) University of Science and Technology Beijing, Beijing 100083, China 2) Daye Special Steel Co., Huangshi 435001, China 2000Acta Metallurgica Sinica(English Letters)2000,13,2:27
7Microbial Reduction of Graphene Oxide by Shewanella显示文摘Graphene 氧化物(去) 能在由 Shewanella 房间的微生物引起的呼吸调停了的周围的条件下面在正常氧气的安装被归结为 graphene。减少 microbially 的 graphene (MRG ) 展出了优秀电气化学的性质。在 cell/GO 接口的细胞外的电子转移小径系统地被调查,建议两个直接电子转移和电子调停人涉及 GO 减小。Gongming Wang Fang Qian Chad W. Saltikov Yongqin Jiao Yat Li 2011Nano Research2011,4,6:18
8急性缺血性卒中患者早期处理指南:美国心脏协会/美国卒中协会对医疗专业人员的指南显示文摘背景和目的作者提供了关于成年急性缺血性卒中患者评估和治疗方面的现有证据和处理推荐的一份概述。目标读者为涉及急性缺血性卒中患者发病48h内诊治的院前诊疗人员、医生、综合医疗保健人员和医院管理者。该指南将取代先前的2007年版指南及其2009年更新版。方法著述委员会成员由美国卒中协会卒中委员会的科学声明监督委员会指定,代表各个领域的医疗专家。在形成共识的整个过程中,严格遵循美国心脏协会的利益冲突原则。委员会成员被分配给与其专业领域相关的内容,对卒中文献进行回顾,重点为前一版指南发表之后的文献,然后按照美国心脏协会卒中委员会的证据强度分级方案起草推荐意见。结果本指南的目的是减少卒中相关的残疾和死亡。本指南支持卒中医疗体系的全局性概念以及从患者识别、急救医疗服务激活、转送和分诊到急诊室和卒中单元内最初数小时诊治的卒中诊治细节。本指南讨论了早期卒中评估和一般治疗、缺血性卒中治疗、特殊干预措施,如再灌注策略以及脑复苏的一般生理学干预原则。结论由于许多推荐意见基于有限的证据,还迫切需要对急性缺血性卒中的治疗做进一步的研究。Edward C. Jauch Jeffrey L. Saver Harold P. Adams Askiel Bruno J.J. (Buddy) Connors Bart M. Demaerschalk Pooja Khatri Paul W. McMullan Jr, Adnan I. Qureshi Kenneth Rosenfield Phillip A. Scott Debbie R. Summers David Z. Wang Max Wintermark Howard Yonas 李海峰(译) 岳耀先(译) 王琦(译) 张贤军(译) 丁晓君(译) 2013国际脑血管病杂志2013,21,7:17
9TiZr-base Bulk Metallic Glass with over 50 mm in Diameter显示文摘Low-cost TiZr-base bulk metallic glasses(BMGs)(Ti36.1Zr33.2Ni5.8Be24.9)100-xCux(x=5,7 and 9) with a maximum size of over 50 mm in diameter were developed by optimizing the alloy composition.The idea is initiated by selecting a particular microstructure comprising primary β-Ti dendrite and amorphous phase.Afterwards,based on this composition of amorphous phase,a class of TiZr-base bulk metallic glasses was designed step by step to reach the optimum composition range.The glass transition temperature(Tg),initial crystallization temperature(Tx) and width of supercooled region(△T) of(Ti36.1Zr33.2Ni5.8Be24.9)91Cu9 BMG are 611,655 and 44 K,respectively.The(Ti36.1Zr33.2Ni5.8Be24.9)91Cu9 BMG exhibits low density of 5.541 g·cm-3 and high compressive fracture strength of 1800 MPa,which promises the potential application as structural materials.M. Q. Tang H.F. Zhang Z. W. Zhu H.M. Fu A.M. Wang H. Li Z.Q. Hu 2010Journal of Materials Science & Technology2010,26,6:17
10The b2/b3 subdeletion shows higher risk of spermatogenic failure and higher frequency of complete AZFc deletion than the gr/gr subdeletion in a Chinese population显示文摘Lu, C. C. Zhang, J. Li, Y. C. Xia, Y. K. Zhang, F. Wu, B. Wu, W. Ji, G. X. Gu, A. H. Wang, S. L. Jin, L. Wang, X. R. 2009南京医科大学学报(自然科学版)2009,29,4:16
11INCIPIENT MOTION OF NON-COHESIVE SEDIMENT UNDER ICE COVER-AN EXPERIMENTAL STUDY显示文摘Based on a series of experiments under both ice-covered and free surface conditions, the present article discusses the role of flow velocity and critical shear Reynolds number for incipient motion of bed material. The influence of the resistance coefficients of both the underside of the ice cover and the channel bed on the location of the maximum velocity has been discussed. In addition, the impacts of ice and composite resistance coefficients on flow velocity for incipient motion of bed material have been assessed. The diagram describing the critical shear Reynolds number and the dimensionless shear stress for the incipient motion of sediment under ice covered conditions with different under cover resistance coefficient has been established. The effects of grain size on densimetric Froude number for incipient motion of bed material have been investigated. A relationship between the densimetric Froude number for incipient motion of bed material and the median grain size of bed material as well as the roughness coefficient of channel bed and roughness coefficient of ice cover has been established.WANG Jun SUI Jue-yi KARNEY Bryan W. 2008Journal of Hydrodynamics2008,20,1:15
12Late Cretaceous chronostratigraphy(Turonian—Maastrichtian):SK1 core Songliao Basin,China显示文摘Non-marine ostracodes,charophytes and palynomorphs are abundant in most Cretaceous lacustrine basins of East Asia.However,their ranges are not directly integrated with marine biota that defines the Cretaceous stages.Non-biotic events such as magnetochrons and radiometric ages in these terrestrial deposits enable their correlation with marine strata.The SK1 north and south eomposited cores in the Songliao Basin present a continuous section of Upper Cretaceous non-marine fossil and magnetochron successions in superposed order.These chronostratigraphic events are integrated with marine events by an X/Y graphic plot between the core data and a global database of Global Section and Stratotype Points (GSSP) and key reference sections.This plot projects stage boundaries in marine sections into the SK1 section and interpolates numerical ages to the first and last occurrences of biota and to lithostratigraphic boundaries.This stratigraphic experiment tests and refines age calibrations based on both manual interpolation of depths to numerical ages and cyclostratigraphy.Ages derived by interpolation are similar and ages by cyclostratigraphy are older because stage boundaries are calibrated to a different age scale.Robert W. Scott Xiaoqiao Wan Chengshan Wang Qinghua Huang 2012Geoscience Frontiers2012,3,4:15
13THE IMPROVEMENT OF ELECTRON FIELD EMISSION FROM AMORPHOUS CARBON FILMS DUE TO HYDROGEN PLASMA CHEMICAL ANNEALING EFFECT显示文摘Hydrogenated amorphous carbon films were fabricated by using layer-by-layer deposition method and hydrogen dilution method in a small d.c.-assisted plasma enhanced chemical vapor deposition system. It was found that the hydrogen plasma treatment could change the sp2/sp3 ratio to some extent by chemical etching. The improvements of field emission characteristics were observed compared with that from conventionally deposited a-C films, which can be attributed to the large field enhancement effect due to the inhomogeneous distribution of nanometer scale sp2 clusters and the reduction of the surface emission barrier due to the hydrogen termination.J. Xu, X.H. Huang, L. Wang, W. Li and K.J. Chen (National Laboratory of Solid State Microstructures and Departmeat of Physics, Nanjing University, Nanjing 210093, China) J.B. Xu (Department of Electronic Engineering, The Chinese University of Hong Kong, S 2001Acta Metallurgica Sinica(English Letters)2001,14,6:15
14Using a Surface Plasmon Resonance Biosensor for Rapid Detection of Salmonella Typhimurium in Chicken Carcass显示文摘Chicken is one of the most popular meat products in the world. Salmonella Typhimurium is a common foodborne pathogens associated with the processing of poultry. An optical Surface Plasmon Resonance (SPR) biosensor was sensitive to the presence of Salmonella Typhimurium in chicken carcass. The Spreeta biosensor kits were used to detect Salmonella Typhimurium on chicken carcass successfully. A taste sensor like electronic tongue or biosensors was used to basically 'taste' the object and differentiated one object from the other with different taste sensor signatures. The surface plasmon resonance biosensor has potential for use in rapid, real-time detection and identification of bacteria, and to study the interaction of organisms with different antisera or other molecular species. The selectivity of the SPR biosensor was assayed using a series of antibody concentrations and dilution series of the organism. The SPR biosensor showed promising to detect the existence of Salmonella Typhimurium at 1 × 106 CFU/ml. Initial results show that the SPR biosensor has the potential for its application in pathogenic bacteria monitoring. However, more tests need to be done to confirm the detection limitation.Yu-bin Lan Shi-zhou Wang Yong-guang Yin W. Clint Hoffmann Xian-zhe Zheng 2008Journal of Bionic Engineering2008,5,3:14
15Scenario Analysis of Tillage, Residue and Fertilization Management Effects on Soil Organic Carbon Dynamics显示文摘Based on data from 10-year field experiments on residue/fertilizer management in the dryland farming region of northern China, Century model was used to simulate the site-specific ecosystem dynamics through adjustment of the model’s parameters, and the applicability of the model to propose soil organic carbon (SOC) management temporally and spatially, in cases such as of tillage/residue/fertilization management options, was identified via scenario analysis. Results between simulations and actual measurements were in close agreement when appropriate applications of stover, manure and inorganic fertilizer were combined. Simulations of extreme C/N ratios with added organic materials tended to underestimate the measured effects. Scenarios of changed tillage methods, residue practices and fertilization options showed potential to maintain and enhance SOC in the long run, while increasing inorganic N slowed down the SOC turnover rate but did not create a net C sink without any organic C input. The Century model simulation showed a good relationship between annual C inputs to the soil and the rate of C sequestration in the top 20 cm layer and provided quantitative estimations of changes in parameters crucial for sustainable land use and management. Conservation tillage practices for sustainable land use should be integrated with residue management and appreciable organic and inorganic fertilizer application, adapted according to the local residue resource, soil fertility and production conditions. At least 50% residue return into the soil was needed annually for maintenance of SOC balance, and manure amendment was important for enhancement of SOC in small crop-livestock systems in which crop residue land application was limited.WANG Xiao-Bin CAI Dian-Xiong W. B. HOOGMOED O. OENEMA U. D. PERDOK 2005Pedosphere2005,15,4:14
16Voluntary exercise-induced neurogenesis in the postischemic dentate gyrus is associated with spatial memory recovery from stroke显示文摘Luo, C. X. Jiang, J. Zhou, Q. G. Zhu, X. J. Wang, W. Zhang, Z. J. Han, X. Zhu, D. Y. 2007南京医科大学学报(自然科学版)2007,27,10:13
17The impact of minimally invasive surgeries for the treatment of symptomatic benign prostatic hyperplasia on male sexual function: a systematic review显示文摘使随机化的控制试用和队研究的系统的评论被进行在男性功能上为征兆的良性的 prostatic 增生(BPH ) 的处理为最低限度地侵略的过程的效果评估数据。寻找的研究是与征兆的 BPH 注册了人的试用与激光手术,经尿道的微波治疗( TUMT ),前列腺(金枪鱼)的经尿道的针脱离,前列腺( TEAP )的经尿道的乙醇脱离和高紧张的频率超声( HIFU )被对待,与前列腺( TURP )或假冒的操作的传统的经尿道的切除术比较。72 研究的一个总数被识别,哪个 33 满足了包括标准。33 研究, 21 涉及了激光手术,六与 TUMT,四与金枪鱼并且二与包含信息考虑的 TEAP 男性功能。没有学习关于为男性功能上的 BPH 的 HIFU 的效果是可得到的。我们的分析证明为 BPH 的最低限度地侵略的手术在男可勃起的功能上 TURP 有可比较的效果到那些。一起,分别地,不到 15.4% 病人或 15.2% 将在激光过程, TUMT 和金枪鱼以后可勃起的功能有减少或增加。是与 TURP 观察了,射精的机能障碍(EjD ) 的高发生在有钬, potassium-titanyl-phosphate 和铥激光治疗的 BPH 的治疗以后是普通的(>33.6%) 。TUMT,金枪鱼和 neodymium:yttrium 铝石榴石为 BPH 的视觉激光脱离或空隙的激光凝结有更少的发生 EjD,而是这些过程为 BPH 治疗被认为更少有效什么时候与 TURP 相比。Ryan W. Frieben Hao-Cheng Lin Peter E Hinh Francesco Berardinelli Steven E. Canfield Run Wang 2010Asian Journal of Andrology2010,12,4:13
18Stress Corrosion Cracking of X80 Pipeline Steel in Near-Neutral pH Environment under Constant Load Tests with and without Preload显示文摘Constant load tests in NS4 solution purged with N2-5%CO2 gas mixture were conducted on American Petroleum Institute (API) X80 pipeline steel applied in the 2nd West-East Gas Pipeline project with and without preload. The results show that cracks could initiate and propagate in X80 pipeline steel in near-neutral pH environment under a constant load condition. The life of crack initiation and propagation increased with decreasing applied stress. Preload did not change its corrosion behavior obviously. However, preload reduced the time for crack initiation.Y.Z. Jia J.Q. Wang E.H. Han W. Ke1 2011Journal of Materials Science & Technology2011,27,11:12
19Lessons in bridge damage learned from the Wenchuan earthquake显示文摘A strong earthquake occurred in Wenchuan County,Sichuan Province,China,on May 12,2008.Shortly after the earthquake,the Turner-Fairbank Highway Research Center of the Federal Highway Administration,in partnership with the Research Institute of Highways,the Ministry of Communication of China,led a reconnaissance team to conduct a post-earthquake bridge performance investigation of the transportation system in the earthquake affected areas.The U.S.transportation system reconnaissance team visited the area during July 20-24,2008.This paper presents the fi ndings and lessons learned by the team.W. Phillip Yen Genda Chen Mark Yashinski Youssef Hashash Curtis Holu Wang Kehai GuoXiaodong 2009Earthquake Engineering and Engineering Vibration2009,8,2:11
20Polymorphisms of MTHFD,plasma homocysteine levels, and risk of gastric cancer in ahigh-risk Chinese population显示文摘Purpose:Accumulative evidence suggests that folate has a protective effect on gastric cancer. The methylenetetrahyd-rofolate dlehydrogenase(MTHFD) plays an important role in folate and homocysteine metabolisms, and polymorphisms of MTHFD may result in disturbance of the folate-mediated homocysteine pathway. The aim of this study is to test the hypothesis that genetic variants of MTHFD and plasma homocysteine levels are associated with risk of gastric cancer and modulated by genotypes of methylenetetrahydrofolate reductase(MTHFR). Experimental Design: We genotyped G1958A and T401C in MTHFD and C677T in MTHFR and detected total plasma homocysteine(tHcy) levels in a case-control study of 589 gastric cancer cases and 635 cancer-free controls in a high-risk Chinese population. Results:The variant genotypes of MTHFD 1958AA and 401CC were associated with a significantly increased risk of gastric canceradjusted odds ratio(OR), 2.05; 95% confidence interval(95% CI),1.34-3.13 for 1958AA; adjusted OR,1.43; 95% CI,1.14-1.80 for 401CC compared with 1958GG/GA and 401TT/TC genotypes, respectively. Both of the effects were more evident in the subjects carrying MTHFR 677CT/TT genotypes. The average tHcy level was significantly higher in gastric cancer cases than in controls(P < 0.01), and the upper quartile of tHcy (> 13.6 mu mol/L) was associated with an 82% significantly increased risk of gastric cancer, compared with the lowest quartile of tHcy(<= 8.0 pmol/L;adjusted OR,1.82; 95% CI,1.20-2.75). Conclusions:The strong associations between MTHFD variants and the plasma tHcy levels and gastric cancer risk suggest, for the first time, a possible gene-environment interaction between genetic variants of folate-metabolizing genes and high tHcy levels in gastric carcinogenesis.Wang, L. N Ke, Q Chen, W. S Wang, J. M Tan, Y. F Zhou, Y Hua, Z. L Ding, W. L Niu, J. Y Shen, J Zhang, Z. F Wang, X. R Xu, Y. H Shen, H. B Yi Xing 2007南京医科大学学报(自然科学版)2007,27,7:10
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