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1Synthesis of a novel triple-site diphosphinoamine (PNP) ligand and its applications in ethylene tetramerization显示文摘A novel triple-site diphosphinoamine (PNP) ligand was synthesized and characterized. In combination with Cr(III) and methylaluminoxane (MAO), it generated active catalytic systems for ethylene tetramerization toward 1-octene with high catalytic activity and long lifetime. The effects of reaction temperature, molar ratio of Al/Cr and molar ratio of ligand/Cr on catalytic activity and selectivity to 1-octene were studied with reaction kinetics of the catalytic system for ethylene tetramerization described. At the Al/Cr molar ratio of 100, the catalytic activity is up to 2.29×106 g·mol-1 (Cr)·h-1 and the selectivity to 1-octene is 49.65 wt%.MAO GuoLiang NING YingNan HU WenBo LI ShanMing SONG XianFeng NIU Bo JIANG Tao 2008Chinese Science Bulletin2008,53,22:11
2ANALYSIS OF TRANSMISSION CHARACTERISTICS OF COSINE GEAR DRIVE显示文摘Based on the mathematical model of a novel cosine gear drive,a few characteristics,such as the contact ratio,the sliding coefficient,and the contact and bending stresses,of this drive are analyzed.A comparison study of these characteristics with the involute gear drive is also carried out. The influences of design parameters including the number of teeth and the pressure angle on the contact and bending stresses are studied.The following conclusions are achieved:the contact ratio of the cosine gear drive is about 1.2 to 1.3,which is reduced by about 20% in comparison with that of the involute gear drive.The sliding coefficient of the cosine gear drive is smaller than that of the involute gear drive.The contact and bending stresses of the cosine gear drive are lower than those of the involute gear drive.The contact and bending stresses decrease with the growth of the number of teeth and the pressure angle.WANG Jian LUO Shanming CHEN Lifeng CHEN Lei HU Huarong 2008Chinese Journal of Mechanical Engineering2008,21,3:7
33-year Treatment of Tenofovir Alafenamide vs.Tenofovir Disoproxil Fumarate for Chronic HBV Infection in China显示文摘Background and Aims:Tenofovir alafenamide(TAF)has similar efficacy to tenofovir disoproxil fumarate(TDF)but with improved renal and bone safety in chronic hepatitis B patients studied outside of China.We report 3-year results from two phase 3 studies with TAF in China(Clinicaltrials.gov:NCT02836249 and NCT02836236).Methods:Chinese hepatitis B e antigen(HBeAg)-positive and-negative chronic hepatitis B patients with viremia and elevated alanine aminotransferase were randomized 2:1 to TAF or TDF treatment groups and treated in a double-blind fashion for 144 weeks(3 years).Efficacy responses were assessed by individual study while safety was assessed by a pooled analysis.Results:Of the 334 patients(180 HBeAg-positive and 154 HBeAg-negative)randomized and treated,baseline characteristics were similar between groups.The overall mean age was 38 years and 73%were male.The mean HBV DNA was 6.4 log10 IU/mL.The median alanine aminotransferase was 88 U/L,and 37%had a history of antiviral use.At week 144,the proportion with HBV DNA<29 IU/mL was similar among the two groups,with TAF at 83%vs.TDF at 79%,and TAF at 93%vs.TDF at 92%for the HBeAg-positive and-negative patients,respectively.In each study,higher proportions of TAF than TDF patients showed normalized alanine aminotransferase(via the American Association for the Study of Liver Diseases and the China criteria)and showed loss of HBsAg;meanwhile,the HBeAg seroconversion rates were similar.Treatment was well-tolerated among the TAF patients,who showed a smaller median decline in creatinine clearance(−0.4 vs.−3.2 mL/min;p=0.014)and less percentage change in bone mineral density vs.TDF at hip(−0.95%vs.−1.93%)and spine(+0.35%vs.−1.40%).Conclusions:In chronic hepatitis B patients from China,TAF treatment provided efficacy similar to TDF but with better renal and bone safety at 3 years.Jinlin Hou Qin Ning Zhongping Duan You Chen Qing Xie Fu-Sheng Wang Lunli Zhang Shanming Wu Hong Tang Jun Li Feng Lin Yongfeng Yang Guozhong Gong John FFlaherty Anuj Gaggar Shuyuan Mo Cong Cheng Gregory Camus Chengwei Chen Yan Huang Jidong Jia Mingxiang Zhang GS-US-320-0110 and GS-US-320-0108 China Investigators 2021Journal of Clinical and Translational Hepatology2021,9,3:7
4Ci antagonizes Hippo signaling in the somatic cells of the ovary to drive germline stem cell differentiation显示文摘许多干细胞人口被他们的本地微型环境(壁龛) 紧调整,它包括 stromal 房间的不同类型。然而,很少对壁龛亚群并列地由决定干细胞命运的机制被知道。这里,我们识别那 Yki,关键河马小径部件,为护卫房间(EC ) 是必要的在在果蝇卵巢支持 germline 区别的功能。我们发现那个刺猬(Hh ) 发信号首先从帽子房间发出,支持 EC 的功能肘脉 interruptus (Ci ) ,表明受动器的 Hh,禁止河马 kinase 的行为串联活动。机械学地,我们发现 Ci 竞争地与 Hpo 交往并且损害表明复杂形成的 Hpo-Wts,从而支持的 Yki 原子本地化。Ci 的行动保证发信号在 EC 反对 Sd/Tgi/Vg-mediated 缺省压抑的有效 Yki。这研究揭开解释壁龛房间的亚群怎么协调经由表明串音的 Hh 河马决定干细胞命运的机制,并且提高我们发信号的 oncogenic Yki/YAP 的机械学的规定的理解。Chaoyi Li Lijuan Kan Yan Chen Xiudeng Zheng Weini Li Wenxin Zhang Lei Cao Xiaohui Lin Shanming Ji Shoujun Huang Guoqiang Zhang Xiaohui Liu Yi Tao Shian Wu Dahua Chen 2015Cell Research2015,25,10:5
5Stress Effect of Cadmium Absorption between Aloe and Solanum nigrum L显示文摘The stress effect of cadmium absorption between aloe and Solanum nigrum L was studied through a simulation experiment with different cadmium contents in soil.The results showed that the growth characteristics,biomass and Cd content in the plants of aloe and S.nigrum L were closely related to Cd content in the soil,and S.nigrum L and aloe had a strong tolerance to Cd in the experiment.pH of rhizosphere soil with S.nigrum L and aloe planted was generally higher than that of non-rhizosphere soil,which is related to the planting pattern.Compared with aloe,S.nigrum L had a stronger capacity to accumulate Cd,and intercropping S.nigrum L and aloe could inhibit aloe's absorption of Cd,which is favorable to the safe planting of aloe.In addition,S.nigrum L has the potential to restore polluted soil.Chen Yingzhi Fu Shanming Wang Jianhuang Pei Jie Li Wenhao He Caizhen 2015Meteorological and Environmental Research2015,6,3:4
6Flexoelectric materials and their related applications: A focused review显示文摘Flexoelectricity refers to the mechanical-electro coupling between strain gradient and electric polarization, and conversely, the electro-mechanical coupling between electric field gradient and mechanical stress. This unique effect shows a promising size effect which is usually large as the material dimension is shrunk down. Moreover, it could break the limitation of centrosymmetry, and has been found in numerous kinds of materials which cover insulators, liquid crystals, biological materials, and semiconductors. In this review, we will give a brief report about the recent discoveries in flexoelectricity, focusing on the flexoelectric materials and their applications. The theoretical developments in this field are also addressed. In the end, the perspective of flexoelectricity and some open questions which still remain unsolved are commented upon.Longlong SHU Renhong LIANG Zhenggang RAO Linfeng FEI Shanming KE Yu WANG 2019Journal of Advanced Ceramics2019,8,2:4
7Relaxor behavior and electrical properties of high dielectric constant materials显示文摘Several typical high dielectric constant materials are reviewed to study the electrical properties and relaxation mechanism. It is found that a Lorenz-type law can be used to describe the dielectric permit- tivity of either the normal ferroelectrics with or without diffuse phase transitions (DPT) or the typical ferroelectric relaxors. The ferroelectric DPT can be well described by just one fitting process using the Lorenz-type law, while the relaxor ferroelectric transition needs two independent fitting processes. The Lorenz-type law fails at the low temperature side of the dielectric maximum of a first-order ferroelectric phase transition. Above the transition temperature, the dielectric curves of all the studied materials can be well described by a Lorenz-type law.FAN HuiQing KE ShanMing 2009Science China(Technological Sciences)2009,52,8:2
8Chaining Distributed Geographic Information Web Services Based on Ontology显示文摘To solve the problem of chaining distributed geo-graphic information Web services (GI Web services), this paper provides an ontology-based method. With this method, semantic service description can be achieved by semantic annotation of the elements in a Web service description language(WSDL) document with concepts of geographic ontology, and then a common under-standing about service semantics between customers and providers of Web services is built. Based on the decomposition and formal-ization of customer requirements, the discovery, composition and execution of GI Web services are explained in detail, and then a chaining of GI Web services is built and used to achieve the cus-tomer’s requirement. Finally, an example based on Web ontology language for service (OWL-S) is provided for testing the feasibil-ity of this method.WU Shanming SHEN Jianjing 2008Wuhan University Journal of Natural Sciences2008,13,4:2
9Multi-detector row CT imaging of blunt abdominal trauma显示文摘Shanm uganathan K 2004Seminars in Ultrasound CT and MRI2004,25,2:1
10Gener- al analytical models of inductance matrices of four-pole bearingless motors with two-pole controlling windings 显示文摘BU Wenshao HUANG Shenghua WAN Shanming 2009IEEE Transactions on Magnetics2009,45,9:1
11RNF146 is a poly (ADP-ribose)-directed E3 ligase that regulates axin degradation and Wnt signaling显示文摘Yue Z Shanming L Craig M 2011Nature Cell Biol2011,13,5:1
12Inheritance ofresistance to powdery mildew in cucum ber显示文摘SHANM U S WILLIAMS P H PETERSON C E 1971Phytopathology1971,61,10:1
13A recessive cotyledon marker gene in cucumber with pleiotropiceffects显示文摘SHANM UGASUNDARUTN S WILLIAM P H PETERSON C E 1972Horl-Science1972,7,:1
14Steady-state performance of synchronous generators with ac and dc stator tions connec-considering saturation 显示文摘Wang Shanming Wang Xiangheng Li Yixiang 2002IEEE Transactions on Energy Conver-sion2002,17,2:1
15Inheritanceof Resistance to Powdery Mildew in Cucumber显示文摘Shanm ugasundarum S William s P H Peterson C E 1971Phytopathology1971,,:1
16Green and yellow vegetables can maintain body stores of vitamin A in Chinese children显示文摘TANG Guangwen GU Xiufen HU Shanming 1999Am J Clin Nutr1999,70,:1
17Long‐term lamivudine treatment achieves regression of advanced liver fibrosis/cirrhosis in patients with chronic hepatitis B显示文摘Bei Xu Lanyi Lin Guoguang Xu Yan Zhuang Qing Guo Yunye Liu Hui Wang Xiaqiu Zhou Shanming Wu Shisan Bao Wei Cai Qing Xie 2015J Gastroenterol Hepatol2015,,2:1
18The genera- tion principle and mathematical models of a novel co sine gear drive 显示文摘LUO Shanming WU Yue WANG Jian 2008Mechanism and Machine Theory2008,43,12:1
19Dielectric Behaviors of PHBHHx - BaTiO3 Multifunctional Composite films 显示文摘Ke Shanming Yang Yi Ren Li 2012Compos Sci Technol2012,72,2:1
20Dielectric behaviors of PHBHHx-Ba Ti O3multifunctional composite films显示文摘Ke Shanming Yang Yi Ren Li 2012Composites Science and Technology2012,72,:1
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