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287篇 您的检索式:作者名="L. MA"
    题名 作者 年代 出处 被引量
1Functional Variant in microRNA-196a2 Contributes to the Susceptibility of Congenital Heart Disease in a Chinese Population显示文摘XU , J. Hu, Z.B. Xu, Z.F. Gu, H.Y Yi, L. Cao, H. L. Chen, J. P. Tian, T. Liang, J. Lin, Y. Qiu, W. S. Ma, H.X. Shen, H. B Chen, Y. J. 2009南京医科大学学报(自然科学版)2009,29,11:20
2A Simple and Reliable Assay for Detecting Specifi c Nucleotide Sequences in Plants Using Optical Thin-fi lm Biosensor Chips显示文摘Here we report the adaptation and optimization of an effi cient, accurate and inexpensive assay that employs custom-designed silicon-based optical thin-fi lm biosensor chips to detect unique transgenes in genetically modi-S. Bai X. Zhong L. Ma W. Zheng L. Fan N. Wei X.W. Deng 2007分子植物育种2007,5,2:13
3An Improved Frequency Domain Technique for Determining Soil Water Content显示文摘For many years a soil water content sensor with low cost, reliability and sufficient accuracy has been desirable. Thus, an improved measurement method based on the frequency domain (FD) principle for determining soil water content was considered. Unlike other measurement principles, a new measurable index, η, which was independent of the output impedance and the amplitude of the oscillator while relying on the electrical impedance of a multi-pin probe, was pro- posed. Moreover, a model for processing the impedance of the multi-pin soil probe was developed, and several important electrical parameters for establishing their operating ranges applicable to this probe were evaluated. In order to confirm the theoretical analysis, an experiment was conducted with a 4-pin probe. Using the developed model, the relationship between the proposed index η and soil volumetric water content was shown to be linear (R2 = 0.9921). Thus, as the measurable index, η seemed satisfactory.SUN Yu-Rui MA Dao-Kun LIN Jian-Hui P. SCHULZE LAMMERS L. DAMEROW 2005Pedosphere2005,15,6:13
4体力活动、久坐、身体素质与1型和2型糖尿病年轻患者健康预后的关系:对流行病学文献的综述(英文)显示文摘Diabetes is a leading chronic disease of childhood and adolescence.In addition to the well-known auto-immune,insulin-dependent diabetes mellitus(type 1 diabetes(T1D)),the past two decades have witnessed the emergence of type 2 diabetes(T2D) in children and adolescents,which previously was only seen in middle-aged or older adults.One of the key components of diabetes management is physical activity(PA).The beneficial effects of increased PA and decreased sedentary behavior are extremely important in youth with diabetes because of the markedly increased long-term risk of cardiovascular disease in this population compared to persons without diabetes.This review aims to comprehensively summarize the epidemiologic,observational research published and listed in PubMed between 1970 and 2012 on PA and sedentary behaviors,as well as physical fitness in children and adolescents with TID and T2D.Additionally,we describe briefly the state of knowledge on perceived barriers of PA in persons with diabetes,with a focus on hypoglycemia.Finally,we provide an overview of the epidemiological literature pertaining to health benefits of increased PA in youth with TID and T2D and briefly discuss the topic of exercise-related hypoglycemia.Angela D. Liese Xiaoguang Ma David M. Maahs Jennifer L. Trilk 2013Journal of Sport and Health Science2013,2,1:12
5EXPLOITATION AND APPLICATIONS OF METASTABLE AUSTENITE MATRIX WEAR ALLOYS显示文摘Fe based cast alloys with double phases structure of m etastable austenite m atrix an d eutecticcarbide M7 C3 were provided with the excellent properties of high abrasion resistance andhigher i m pact toughness . An i m portant reason of high abrasion resistance is hard ness violentincreasing on the m atrix surface because of w ear easily induced m artensite transfor m ation . The exploitation and applications of m etastable austenite m atrix wear alloys of Fe C Cr Nisyste m and Fe C Cr Mn system were described in this paper . The excellent properties of thesealloys w ill be sufficiently indicated by authors’exa m ples . To exploit a class of these alloyswith high abrasion resistance and various im pact toughness for m eeting the requirem ent of dif ferent environ ment , the proble m of the structure design of metastable austenite m atrix wearalloy w as also described in this paper .Y. Q. Ma , Y. H. Qi , X. L. Xu and L. Y. Dai Institute of Metal Material Technology , Dalian Maritime University , Dalian 116026 , China 1999Acta Metallurgica Sinica(English Letters)1999,12,5:12
6First dark matter search results from the PandaX-Ⅰ experiment显示文摘We report on the first dark-matter(DM)search results from PandaX-I,a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory.In the 37-kg liquid xenon target with 17.4 live-days of exposure,no DM particle candidate event was found.This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results.The minimum upper limit,3.7×10-44cm2,for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49 GeV/c2at 90%confidence level.XIAO MengJiao XIAO Xiang ZHAO Li CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HU Jie HUANG XingTao JI XiangDong JU YongLin LEI SiAo LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing STEPHENSON Scott TAN AnDi TARL Greg WANG HongWei WANG JiMin WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIE PengWei YOU YingHui ZENG XiongHui ZHANG Hua ZHANG Tao ZHU ZhongHua 2014Science China(Physics,Mechanics & Astronomy)2014,57,11:10
7PandaX: a liquid xenon dark matter experiment at CJPL显示文摘PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay search.The central vessel was designed to accommodate a staged target volume increase from initially 120 kg(stage I)to 0.5 t(stage II)and eventually to a multi-ton scale.The experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,China.The detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional scintillation.In this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented.CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HE Ming HU Jie HUANG XingTao JI XiangDong JU YongLin LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing SHI YuJie STEPHENSON Scott TAN AnDi TARLé Greg WANG HongWei WANG JiMing WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIAO MengJiao XIAO Xiang XIE PengWei YE Tao YOU YingHui ZEN XiongHui ZHANG Hua ZHANG Tao ZHAO HaiYing ZHAO Li ZHOU XiaoPeng ZHU ZhongHua 2014Science China(Physics,Mechanics & Astronomy)2014,57,8:9
8Constitutive equation and model validation for a 31 vol.% B_4Cp/6061Al composite during hot compression显示文摘An accurate constitutive equation is essential to understanding the flow behavior of B_4C/Al composites during the hot deformation. However, the constitutive equations developed previously in literature are generally for low strain rate deformation. In the present work, we modified the general constitutive equation and take the high strain rate correction into account. The constitutive equation for a31 vol.% B_4Cp/6061 Al composite was constructed based on the flow stresses measured during isothermal hot compression at temperatures ranging from 375 to 525?C and strain rates from 0.01 to 10 s-1. The experimental flow stresses were corrected by considering temperature-dependent Arrhenius factor. The modified equation was then verified by using DEFORM-3 D finite element analysis to simulate the experimental hot compression process. The results show that the modified equation successfully predicts flow stress, load–displacement, and the temperature rise. This helps to optimize the hot deformation process,and to obtain desirable properties, such as reduced porosity and homogenous particle distribution in B_4C/Al composites.L. Zhou C. Cui Q.Z. Wang C. Li B.L. Xiao Z.Y. Ma 2018Journal of Materials Science & Technology2018,34,10:8
9Effect of Y Addition on Microstructure and Mechanical Properties of Friction Stir Welded ZK60 Alloy显示文摘6 mm thick ZK60 and ZK60-Y alloy plates were successfully friction stir welded (FSW) at a tool rotation rate of 1200 r/min and a traverse speed of 100 mm/min. FSW resulted in the dissolution of MgZn2 particles in the ZK60 and the breakup and dispersion of W-phase (Mg3Zn3Y2) particles in the ZK60-Y alloy, thereby leading to a decrease in the hardness of the nugget zone (NZ) for the ZK60 alloy and an increase in the hardness of the NZ for the ZK60-Y alloy, respectively. While two FSW joints exhibited similar joint effciency (87%-89% of ultimate tensile strengths of the parent materials), the yield strength of the FSW ZK60-Y joint was substantially higher than that of the FSW ZK60 joint. The fracture occurred in the NZ and the heat affected zone for the ZK60 and ZK60-Y joints, respectively, which were consistent with the lowest hardness distribution of the welded joints.G.M. Xie Z.Y. Ma L. Geng 2009Journal of Materials Science & Technology2009,25,3:7
10Utility of MtCOI polymerase chain reaction-restriction fragment length polymorphism in differentiating between Q and B whitefly Bemisia tabaci biotypes显示文摘侵略,杀虫药剂抵抗, Q 白苍蝇遗传因子型,逐渐地经由植物材料的调停人的运动包括 US 传播了到另外的国家。我们估计了基于 VspI 的 mtCOI 的用途(线粒体细胞色素 oxidase 我) 是的聚合酶链反应限制碎片长度多型性(PCR-RFLP ) 技术为在亚利桑那把 Q 区分开来与主导的 B 遗传因子型的一种快速、划算、可靠的选择。用定序的标准 mtCOI 基因和 mtCOI PCR-RFLP 技术,我们八个白苍蝇五个个人拉紧的 biotyped 各在亚利桑那在不同地点从一品红和棉花收集了。完全的词语索引在二个方法之间被观察,与作为象 B 遗传因子型的 Q 遗传因子型和五件样品被识别的三紧张。我们也在在 GenBank 数据库当前可得到的 B 和 Q 遗传因子型白人苍蝇为 VspI 多型性扫描了 mtCOI 基因序列。这全球屏蔽分别地为 Q 和 B 遗传因子型揭示了三和四种 VspI 多态的类型的存在。不过,所有三个 VspI 多态的 Q 遗传因子型白人苍蝇分享了能被用来把 Q 遗传因子型区分开来与识别的四个 VspI 多态的 B 遗传因子型白人苍蝇的一个普通、唯一的 VspI 地点。这些结果证明基于 VspI 的 mtCOI 基因 PCR-RFLP 为区分白色在 US 并且在其它地方飞的 Q 和 B 遗传因子型提供一个可靠诊断工具。Wei-Hua Ma Xian-Chun Li Timothy J. Dennehy Chao-Liang Lei Mo Wang Benjamin A. Degain Robert L. Nichols 2009Insect Science2009,16,2:5
11A sperm GPI-anchored protein elicits sperm-cumulus cross-talk leading to the acrosome reaction显示文摘Yin, L. Chung, C. M. Huo, R. Liu, H. Zhou, C. Xu, W. Zhu, H. Zhang, J. Shi, Q. Wong, H. Y.C. Chen, J. Lu, Y. Bi, Y. Zhao, C. Du, Y. Ma, M. Cai, Y. Chen, W. Y. Fok, K. L. Tsang, L. L. Li, K. Ni, Y. Chung, Y. W. Zhou, Z. Sha, J. Chan, H. C. 2009南京医科大学学报(自然科学版)2009,29,4:5
12Bone marrow-derived mesenchymal stem cells are capable of mediating hepatitis B virus infection in injured tissues显示文摘Rong, Q. 2008南京医科大学学报(自然科学版)2008,28,9:5
13Weighted variation inequalities for differential operators and singular integrals in higher dimensions显示文摘We prove weighted q-variation inequalities with 2MA Tao TORREA Jose L. XU QuanHua 2017Science China Mathematics2017,60,8:5
14A New Perspective about Climate Change显示文摘K. B. Mao Y. Ma T.R. Xu Q. Liu J Q. Han L. Xia X. Y. Shen T. J. He 2015地球科学期刊(中英文版)2015,5,1:4
15Modeling evapotranspiration and energy balance in a wheat–maize cropping system using the revised RZ-SHAW model显示文摘Q.X. Fang L. Ma G.N. Flerchinger Z. Qi L.R. Ahuja H.T. Xing J. Li Q. Yu 2014Agricultural and Forest Meteorology2014,,:3
16Long-term Therapy With Adefovir Dipivoxil for HBeAg-Negative Chronic Hepatitis B for up to 5 Years显示文摘Stephanos J. Hadziyannis Nicolaos C. Tassopoulos E. Jenny Heathcote Ting–Tsung Chang George Kitis Mario Rizzetto Patrick Marcellin Seng Gee Lim Zachary Goodman Jia Ma Carol L. Brosgart Katyna Borroto–Esoda Sarah Arterburn Steven L. Chuck 2006Gastroenterology2006,,6:3
17Long-term Therapy With Adefovir Dipivoxil for HBeAg-Negative Chronic Hepatitis B for up to 5 Years显示文摘Stephanos J. Hadziyannis Nicolaos C. Tassopoulos E. Jenny Heathcote Ting–Tsung Chang George Kitis Mario Rizzetto Patrick Marcellin Seng Gee Lim Zachary Goodman Jia Ma Carol L. Brosgart Katyna Borroto–Esoda Sarah Arterburn Steven L. Chuck 2006Gastroenterology2006,,6:2
18Prediction of unburned carbon and NO x in a tangentially fired power station using single coals and blends显示文摘R.I. Backreedy J.M. Jones L. Ma M. Pourkashanian A. Williams A. Arenillas B. Arias J.J. Pis F. Rubiera 2005Fuel2005,,17:2
19Postoperative Complications and Mortality Following Colectomy for Ulcerative Colitis显示文摘Shanika de Silva Christopher Ma Marie–Claude Proulx Marcelo Crespin Belle S. Kaplan James Hubbard Martin Prusinkiewicz Andrew Fong Remo Panaccione Subrata Ghosh Paul L. Beck Anthony MacLean Donald Buie Gilaad G. Kaplan 2011Clinical Gastroenterology and Hepatology2011,,11:2
20Motilin and the interdigestive migrating motor complex in man显示文摘Dr. G. Vantrappen MD Agg HO J. Janssens MD Agg HO T. L. Peeters PhD S. R. Bloom MA MB MRCP N. D. Christofides BSc J. Hellemans MD Agg HO 1979Digestive Diseases and Sciences1979,,7:2
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