维普中文期刊产品整合服务
4613篇 您的检索式:作者名="LIU K L"
    题名 作者 年代 出处 被引量
1Abdominal applications of diffusion-weighted magnetic resonance imaging: Where do we stand?显示文摘Diffusion-weighted imaging (DWI) is one of the magnetic resonance imaging (MRI) sequences providing qualitative as well as quantitative information at a cellular level. It has been widely used for various applications in the central nervous system. Over the past decade, various extracranial applications of DWI have been increasingly explored, as it may detect changes even before signal alterations or morphological abnormalities become apparent on other pulse sequences. Initial results from abdominal MRI applications are promising, particularly in oncological settings and for the detection of abscesses. The purpose of this article is to describe the clinically relevant basic concepts of DWI, techniques to perform abdominal DWI, its analysis and applications in abdominal visceral MR imaging, in addition to a brief overview of whole body DWI MRI.Ajaykumar C Morani Khaled M Elsayes Peter S Liu William J Weadock Janio Szklaruk Jonathan Russell Dillman Asra Khan Thomas L Chenevert Hero K Hussain 2013World Journal of Radiology2013,5,3:12
2Purified human bone marrow multipotent mesenchymal stem cells regenerate infarcted myocardium in experimental rats显示文摘Zhang S Jia Z Ge J Gong L Ma Y Li T Guo J Chen P Hu Q Zhang P Liu Y Li Z Ma K Li L Zhou C 2006中国生物学文摘2006,20,5:5
3Induction of mucosal and systemic immune response by single-dose oral immunization with biodegradable microparticles containing DNA encoding HBsAg显示文摘He XW Wang F Jiang L Li J Liu SK Xiao ZY Jin XQ Zhang YN He Y Li K Guo YJ Sun SH 2005第二军医大学学报2005,26,10:5
4环境铅暴露与血压的关系:2003-2010美国健康和营养调查显示文摘在铅暴露逐渐降低的环境下,该文通过分析2003-2010美国健康和营养调查资料,旨在研究血铅与血压、高血压的关系。纳入研究对象12 725人,其中非洲裔21.1%,西语裔20.5%,白人58.4%,女性48.7%。与非非洲裔比较,非洲裔的血压[126.5/71.9比123.9/69.6mm Hg(1mm Hg=0.Hara A Thijs L Asayama K Gu YM Jacobs L Zhang ZY Liu YP Nawrot TS Staessen JA 刘莉 叶鹏 2014中华高血压杂志2014,22,10:3
5限制卡路里摄入可抑制大鼠促进动脉衰老的炎症反应,保持年轻的表型显示文摘老化呈指数性增加典型心血管病的发病率和死亡率,这主要是由于动脉壁内分子、细胞和组织水平的动脉促炎变化。动物实验中,大鼠的卡路里限制(calorie restriction,CR)改善了动脉功能并延长了健康跨度和寿命。然而,CR如何影响大鼠动脉壁内分子,细胞和组织表型促炎变化仍有待阐明。该文选取随意喂食的344只年轻(6个月大)和老(24个月大)的Fischer大鼠,获取主动脉;另外选取1组在1个月大时开始只维持40%CR。刘青 叶鹏 Wang MY Zhang L Zhu WQ Zhang J Kim SH Wang YS Ni L Telljohann R Monticone RE McGraw K Liu LJ Rafael de Cabo Lakatta EG 2018中华高血压杂志2018,26,11:3
6Stereotactic body radiation therapy for management of spinal metastases in patients without spinal cord compression: a phase 1–2 trial显示文摘Xin Shelley Wang Laurence D Rhines Almon S Shiu James N Yang Ugur Selek Ibrahima Gning Ping Liu Pamela K Allen Syed S Azeem Paul D Brown Hadley J Sharp David C Weksberg Charles S Cleeland Eric L Chang 2012Lancet Oncology2012,,4:2
7A review on MBE-grown HgCdSe infrared materials on GaSb(211)B substrates显示文摘We review our recent efforts on developing HgCdSe infrared materials on Ga Sb substrates via molecular beam epitaxy(MBE) for fabricating next generation infrared detectors with features of lower production cost and larger focal plane array format size. In order to achieve high-quality HgCdSe epilayers, ZnTe buffer layers are grown before growing HgCdSe, and the study of misfit strain in ZnTe buffer layers shows that the thickness of ZnTe buffer layer needs to be below 300 nm in order to minimize the generation of misfit dislocations. The cut-off wavelength/alloy composition of HgCdSe materials can be varied in a wide range by varying the ratio of Se/Cd beam equivalent pressure during the HgCdSe growth.Growth temperature presents significant impact on the material quality of HgCdSe, and lower growth temperature leads to higher material quality for HgCdSe. Typically, long-wave infrared HgCdSe(x = 0.18, cut-off wavelength of 10.4 μm at 80 K) presents an electron mobility as high as 1.3×10~5cm^2·V^(-1)·s^(-1), a background electron concentration as low as 1.6×10^(16)cm^(-3), and a minority carrier lifetime as long as 2.2 μs. These values of electron mobility and minority carrier lifetime represent a significant improvement on previous studies of MBE-grown HgCdSe reported in the open literatures,and are comparable to those of counterpart HgCdTe materials grown on lattice-matched CdZnTe substrates. These results indicate that HgCdSe grown at the University of Western Australia, especially long-wave infrared can meet the basic material quality requirements for making high performance infrared detectors although further effort is required to control the background electron concentration to below 10^(15)cm^(-3). More importantly, even higher quality HgCdSe materials on GaSb are expected by further optimizing the growth conditions, using higher purity Se source material, and implementing postgrowth thermal annealing and defect/impurity gettering/filtering. Our results demonstrate the great potential of HgCdSe infrared materials grown on GaSb substrates for fabricating next generation infrared detectors with features of lower cost and larger array format size.Z K Zhang W W Pan J L Liu W Lei 2019Chinese Physics B2019,28,1:2
8Research on Service Life Prediction Model of Concrete Structure of Sea-crossing Bridge显示文摘According to the chloride corrosion environment,service life prediction model of concrete structure of sea-crossing bridge was built using modified Fick's second law and the whole probability calculation method,which was suitable for China. Furthermore,a visual service life prediction program of concrete structure was developed by optimized Monte Carlo method. Meanwhile,Life 365 program was compared,indicating reliability of the prediction program. Finally,the validity of prediction model was verified in JinTang Bridge of Zhoushan Island Mainland Linkage Project.WANG C J ZHANG G Z LIU K X TU L Q LI J H QIN M Q 2010武汉理工大学学报2010,32,17:2
9深部地球条件下铁和氧元素的化学变化显示文摘氧与铁分别为地球上丰度最高的元素与占地球质量最大的元素,它们所形成的化合物遍布我们的星球,具有-2价的氧控制着地球的氧逸度,随着深度的增加氧逸度逐渐降低,与铁所形成的氧化物中铁的价态也逐渐降低,O/Fe逐渐增加,近些年来科学家们发现深部地球条件下铁的一系列氧化物,其中具有高压黄铁矿结构的铁超氧化物FeO2具有最高的O/Fe,并且它还能够携带一定量的H(表示为Py-FeO2H,, x=0-1)。夏群科 Liu J Hu Q Y Bi W L Yang L X Xiao Y M Chow P Meng Y.Prakapenka V B Mao H K Mao W L 2019矿物岩石地球化学通报2019,38,3:2
10Effect of selective thermal denaturation of seybean proteins on soymilk viscosity and tofu's physical properties显示文摘Liu Z S Chang S K C Li L T Tatsumi E 2004Food Research International2004,37,:1
11Multicolor display of spectral attributes 显示文摘Liu J L Marfurt K J 2007The Leading Edge2007,26,3:1
12An investigation of polypyrrole-LiFePO4 composite cathode materials for lithium-ion batteries显示文摘WANG G X YANG L CHEN Y BEWLAY S LIU H K 2005Electrochim Acta2005,50,24:1
13Modeling and control of auto- mated polishing deburring process using a dual purpose compliant toolhead显示文摘Liao L Xi F F Liu K F 2008International Journal of Machine Tools & Manufacture2008,48,1213:1
14Genome analyses ol ice landic strains of Sulfolobus islandicus, model organisms for ge netic and virus-host interaction studies显示文摘GUO L BRUQQER K LIU C 2011Journal of Bacteri ology2011,193,7:1
15Enhanced plasticity by phase separation in CuZrAl bulk metallic glass with micro-addition of Fe 显示文摘PAN J LIU L CHAN K C 2009Scripta Mater2009,60,9:1
16Automatic Representation of Fingerprints for Data Compression by B-Spline Functions显示文摘Michael Chong M S Robert Gay K L Tan H N Liu J 1992Pattern Recognition1992,25,10:1
17Growth modes in atomic hydrogen-assisted molecular beam epitaxy of GaAs显示文摘WANG X L HORAT J LIU H K 1997J Appl Phys1997,81,3:1
18Nuclear localization of the ORF2 protein edcoded by porcine circovirus type 2显示文摘Liu Q Tikoo S K Babiuk L A 2001Virology2001,285,1:1
19Viscoelastic characterization of the soybean seed coat显示文摘Liu M Haghighi K Stroshine R L 1989Transactions of the ASAE1989,32,3:1
20The catalytic effect of tertiary amines on the dyeing of monochlorotrizine dyes at high temperatures in a neutral medium显示文摘Liu D Z Gao K Y Cheng L B 1991Journal of the Society of Dyers and Colourists1991,107,:1
返回顶部 每页显示:
共231页 首页 上一页 第1页 下一页 末页 /231 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