|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | An approach to determining the local boundaries of voltage stability region with wind farms in power injection space显示文摘A new approach to determining the local boundaries of voltage stability region in power injection space (IVSR) for power system with wind farms is presented. It can be used for power system voltage stability analysis and on-line security assessment with considering the output uncertainty of the wind farms. Firstly, power flow tracing and double dispatching are used to determine the generators that are closely related to the wind farms, in order to balance the power fluctuations caused by the wind speed variation. Then, modal analysis is used to get the key generators to achieve an effective dimension reduction for IVSR. Finally, the forecasting output power (or wind speed) of wind farms is divided into several intervals. For each interval, the corresponding local IVSR boundaries can be calculated by the method based on small disturbance. Moreover, parallel process is used to accelerate the computing speed. The presented approach is validated by several power systems. It can be revealed that the approach can give the local IVSR boundaries at different wind speeds and has a good engineering application prospect. | MU YunFei & JIA HongJie Key Laboratory of Power System Simulation and Control of Ministry of Education, Tianjin University, Tianjin 300072, China | 2010 | Science China(Technological Sciences)2010，53，12： | 13 |
| 2 | Subclinical abnormal glucose tolerance is a predictor of death in liver cirrhosis显示文摘AIM:To determine if subclinical abnormal glucose tolerance(SAGT)has influence on survival of non-diabetic patients with liver cirrhosis.METHODS:In total,100 patients with compensatedliver cirrhosis and normal fasting plasma glucose were included.Fasting plasma insulin(FPI)levels were measured,and oral glucose tolerance test(OGTT)was performed.According to OGTT results two groups of patients were formed:those with normal glucose tolerance(NGT)and those with SAGT.Patients were followed every three months.The mean follow-up was932 d(range of 180-1925).Survival was analyzed by the Kaplan-Meyer method,and predictive factors of death were analyzed using the Cox proportional hazard regression model.RESULTS:Of the included patients,30 showed NGT and70 SAGT.Groups were significantly different only in age,INR,FPI and HOMA2-IR.Patients with SAGT showed lower 5-year cumulated survival than NGT patients(31.7%vs 71.6%,P=0.02).Differences in survival were significant only after 3 years of follow-up.SAGT,Child-Pugh B,and high Child-Pugh and Model for EndStage Liver Disease(MELD)scores were independent predictors of death.The causes of death in 90.3%of cases were due to complications related to liver disease.CONCLUSION:SAGT was associated with lower survival.SAGT,Child-Pugh B,and high Child-Pugh and MELD scores were independent negative predictors of survival. | Diego García-Compeán Joel Omar Jáquez-Quintana Fernando Javier Lavalle-González José Alberto González-González Linda Elsa Mu?oz-Espinosa Jesús Zacarías Villarreal-PérezEndocrinology Service and Department of Internal Medicine University Hospital 'Dr. José E. González' and Medical School Universidad Autónoma de Nuevo León Monterrey 64320 México Héctor J Maldonado-Garza | 2014 | World Journal of Gastroenterology2014，20，22： | 12 |
| 3 | Primary scientific results of Chang'E-1 lunar mission显示文摘The strategic plan for the development of the unmanned Chinese Lunar Exploration Program is characterized by three distinct stages: 'orbiting around', 'landing on' and 'returning from' the Moon. The first Chinese lunar probe, Chang'E-1, which was successfully launched on October 24th, 2007 at Xichang Satellite Launch Center, and guided to crash on the Moon on March 1st, 2009, at 52.36°E, 1.50°S, in the north of Mare Fecunditatis, is the first step towards the 'orbiting around' stage. The Chang'E-1 mission lasted 495 days, exceeding the expected life-span by about four months. A total of 1.37 TB raw data was received from Chang'E-1. It was then processed into 4 TB scientific data products at various levels. Many scientific results have been obtained by analyzing these data, including especially the 'global lunar image from the first Chinese lunar explora- tion mission'. All scientific goals of Chang'E-1 have been achieved. It provides much useful materials for further advances of lunar sciences and planetary chemistry. Meanwhile, these results will serve as a firm basis for future Chinese lunar missions. | OUYANG ZiYuan1,2, LI ChunLai1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, LIU JianJun1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang3, WANG JianYu4, YANG JianFeng3, CHANG Jin5, WANG HuanYu6, ZHANG XiaoHui7, WANG ShiJin7, WANG Min1, REN Xin1, MU LingLi1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, ZHENG YongChun1, LI JunDuo1, ZOU XiaoDuan1, XU Chun1, SHI ShuoBiao1, GAO YiFei1 & GAO GuanNan1 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 3 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 4 Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China 5 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China 6 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 7 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China | 2010 | Science China Earth Sciences2010，53，11： | 11 |
| 4 | Liquid propellant analogy technique in dynamic modeling of launch vehicle显示文摘The coupling effects among lateral mode,longitudinal mode and torsional mode of a launch vehicle cannot be taken into account in traditional dynamic analysis using lateral beam model and longitudinal spring-mass model individually.To deal with the problem,propellant analogy methods based on beam model are proposed and coupled mass-matrix of liquid propellant is constructed through additional mass in the present study.Then an integrated model of launch vehicle for free vibration analysis is established,by which research on the interactions between longitudinal and lateral modes,longitudinal and torsional modes of the launch vehicle can be implemented.Numerical examples for tandem tanks validate the present method and its necessity. | PAN ZhongWen 1,2 ,XING YuFeng 1 ,ZHU LiWen 2 ,DONG Kai 2 &SUN Mu 2 1Solid Mechanics Research Center,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2 Beijing Astronautics Systems Engineering Institute,Beijing 100076,China | 2010 | Science China(Technological Sciences)2010，53，8： | 11 |
| 5 | Hepatitis C virus RNA detection in serum and peripheral blood mononuclear cells of patients with hepatitis C显示文摘HepatitisCvirusRNAdetectioninserumandperipheralbloodmononuclearcelsofpatientswithhepatitisCZHOUPing,CAIQing,CHENYouChun,ZHA... | ZHOU Ping, CAI Qing, CHEN You Chun, ZHANG Mu Sen, GUAN Jian and LI Xiao Juan | 1997 | World Journal of Gastroenterology1997，3，2： | 10 |
| 6 | Adjoint approach to VDA of 'on-off' processes based on nonlinear perturbation equation显示文摘A new adjoint approach is applied to variational data assimilation of a general 'on-off' switch model. The accurate gradient expression is obtained in analytical case. In discrete case, the existence of gradient is discussed in three types of difference schemes, and the corresponding adjoint equations are derived. The advantage of the new approach in real application is shown by numerical experiment: not only it can lead optimization to converge to global minimum, but also the assimilation system built by conventional approach can still be used. | WANG Jiafeng, MU Mu and ZHENG Qin(LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China) | 2002 | Progress in Natural Science:Materials International2002，12，11： | 8 |
| 7 | KAI1/CD82 suppresses hepatocyte growth factorinduced migration of hepatoma cells via upregulationof Sprouty2显示文摘We conducted a study concerning the suppressive mechanism of KAI1/CD82 on hepatoma cell metastasis.Hepatocyte growth factor(HGF)induces the migration of hepatoma cells through activation of cellular sphingosine kinase 1(SphK1).Adenovirus-mediated gene transfer of KAI1(Ad-KAI1)downregulates the SphK1 expression and suppresses the HGF-induced migration of SMMC-7721 human hepatocellcular carcinoma cells.Overexpression of KAI1/CD82 significantly elevates Sprouty2 at the protein level.Ablation of Sprouty2 with RNA interference can block the KAI1/CD82-induced suppression of hepatoma cell migration and downregulation of SphK1 expression.It is demonstrated that KAI1/CD82 suppresses HGF-induced migration of hepatoma cells via upregulation of Sprouty2. | MU ZhenBin1 ,3,WANG Hua 2,ZHANG Jing 2,LI QingFang 2,WANG LiSheng 2&GUO XiaoZhong 3 1State Key Laboratory of Cancer Biology and Institute of Digestive Diseases,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,China 2Department of Experimental Hematology,Beijing Institute of Radiation Medicine,Beijing 100850,China 3Department of Gastroenterology,Shenyang General Hospital of PLA,Shenyang 110016,China | 2008 | Science China(Life Sciences)2008，51，7： | 7 |
| 8 | A new tripodal rhodamine B derivative as a highly selective and sensitive fluorescence chemosensor for copper(Ⅱ)显示文摘A new tripodal rhodamine B derivative 2 was designed and synthesized by tripodal trialdehyde and rhodamine B hydrazide for the first time. This derivative could be used as a fluorescent chemosensor for the selective and sensitive determination of copper(II) in Tris-HCl buffer and ethanol aqueous mixed media. Under the optimum conditions described herein,fluorescence enhancement at 557/577 nm was linearly related to the concentration of copper(II) in the range of 0.10 to 10.00×10-5 mol·L-1,with a corre-lation coefficient of R2=0.9964 (n=15) and a detection limit of 1.129×10-7 mol·L-1 (the relative standard deviation for five repeated measurements at 4.00×10-5 mol·L-1 Cu(II) was 2.2%). The absorbance meas-urements at 557 nm were linearly related to the concentration of Cu(II) in the range of 0.50 to 25.00×10-5 mol·L-1,with a correlation coefficient of R2=0.9948 (n=13) and a detection limit of 3.338×10-7mol·L-1. | ZENG Xi,WU Chong,DONG Lei,MU Lan,XUE SaiFeng & TAO Zhu College of Chemistry and Chemical Engineering ,Guizhou University,Guiyang 550003,China Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University,Guiyang 550025,China | 2009 | Science China Chemistry2009，52，4： | 7 |
| 9 | A Qualitative Appraisal of China’s Efforts in Fishing Capacity Management显示文摘This paper provides a critical review of some major efforts made by China to manage the fishing capacity of its marine capture fisheries. It begins by reviewing the key concepts and issues closely related to fishing capacity management. Following on this, a brief introduction to China’s marine capture fisheries is offered, especially the trends of its marine landings and marine fishing fleets and the status of fish stocks in waters under its jurisdiction. Next comes the main concern of the paper, i.e., some major actions recently initiated by China to deal with the overcapacity problem confronting it. The paper ends with conclusions and suggestions. | MU Yongtong*, YU Huiguo, CHEN Jingna, and ZHU Yugui Division of Life Science and Technology, Ocean University of China, Qingdao 266003, P. R. China | 2007 | Journal of Ocean University of China2007，6，1： | 6 |
| 10 | An Efficient Synthetic Method of Nordihydroguaiaretic Acid (NDGA)显示文摘Nordihydroguaiaretic acid (NDGA) has been synthesized in nine steps from piperonal using Stobbe condensation as the key step with high yield. By this approach, five relative natural products were obtained. | Ya Mu XIA, Xiao Ping CAO, Kun PENG, Xin Feng REN, Xin Fu PAN* Department of Chemistry and National Laboratory of Applied Organic Chemistry Lanzhou University, Lanzhou 730000 | 2003 | Chinese Chemical Letters2003，14，4： | 5 |
| 11 | The design of monitoring communication system Based on Power line carrier显示文摘The design of the power line carrier communication system was introduced in this paper,DSP was adopted as the hardware platform to complete the core task.DSP sending terminal delivered the collecting data to the DSP receiving terminal through the power line carrier, and the DSP receiving terminal send the data to PC through a serial port.The design improved the power line carrier communication system and the data transmission became faster and more reliable.The experiment results showed that the PER of the receiving data is less than 0.4%, which satisfied the power line carrier communication requirement Our design is feasible and effective. | Wei-tao MU,Jian-jun HAO,Ping-xiang JIANG,Guo-wei LI (College of Information and Electrical Engineering,Shandong University of Science and Technology,qingdao266510,China) | 2010 | Journal of Measurement Science and Instrumentation2010，1，S1： | 4 |
| 12 | Optimality of a nonlinear stability criterion of two-layer Phillips model显示文摘The optimality of a nonlinear stability criterion of motions of two_layer Phillips model is investigated. The result shows that for a given zonal periodical channel, there exist cases that there is no normal mode which grows exponentially even if the sufficient conditions of the criterion are destroyed. On the other hand, the above criterion is optimal in the following sense: when the sufficient conditions of the criterion are destroyed, except some critical cases, there exists a finite zonal periodical channel, in which there is a zonal normal mode growing exponentially. | MU Mu State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China | 1998 | Chinese Science Bulletin1998，43，8： | 4 |
| 13 | A class of additive-accelerated means regression models for recurrent event data显示文摘In this article, we propose a class of additive-accelerated means regression models for analyzing recurrent event data. The class includes the proportional means model, the additive rates model, the accelerated failure time model, the accelerated rates model and the additive-accelerated rate model as special cases. The new model offers great flexibility in formulating the effects of covariates on the mean functions of counting processes while leaving the stochastic structure completely unspecified. For the inference on the model parameters, estimating equation approaches are derived and asymptotic properties of the proposed estimators are established. In addition, a technique is provided for model checking. The finite-sample behavior of the proposed methods is examined through Monte Carlo simulation studies, and an application to a bladder cancer study is illustrated. | LIU Li 1, MU XiaoYun 2 & SUN LiuQuan 2 1 School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China 2 Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, China | 2010 | Science China Mathematics2010，53，12： | 3 |
| 14 | Phyto-availability and speciation change of heavy metals in soils amended with lignin as micro-fertilizer显示文摘Lignin is a primary byproduct from the black liquor treatment in paper making industries, its application as micro-fertilizer in agricultural land might provide a promising alternative to sewage discharge. However, application of such a micro-fertilizer might affect the soil properties and result in soil pollution. In this study, the effects of lignin application on phytoavailability and speciation change of heavy metals in soils were investigated. Greenhouse experiments showed that lignin application improved the growth of winter wheat (Triticum aestivum L.) in all three soils investigated. The increase of the biomass for wheat shoot was 59.7%, 39.8% and 12.3% for Beijing soil, Jiangxi soil and Dongbei soil, respectively. In contrast, lignin amendment decreased the concentrations of heavy metals in wheat shoots from 2.2% to 61.0%. Sequential extraction procedure of a three-step BCR was used to investigate the fraction distribution. The extractable fractions were specified as fraction B1: water soluble, exchangeable and carbonate bound or weakly specifically adsorbed; B2: Fe-Mn oxide bound; B3: organic matter and sulfide bound. The results showed that lignin application led to the redistribution of heavy metals in each fraction. Generally, heavy metals decreased in B1 and B2 fractions and increased in B3 fraction. Upon the results short-term application of lignin in agricultural land not only improves the growth of wheat but also reduces the phyto-abailability of heavy metal in wheat. | WANG Songxue, ZHANG Shuzhen, SHAN Xiaoquan & MU Huanzhen Stale Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Science Academy of State Administration of Grain, Beijing 100037, China | 2005 | Science China(Life Sciences)2005，48，z1： | 3 |
| 15 | Shape description matrix and its applications to color-image retrieval and recognition显示文摘Shape description matrix (SDM) describing regional pixel distribution characteristics of images is defined, with both radial and angular distribution messages taken into account to offer a comprehensive and exact description of the shape characteristics even upon a blurred edge. Using this SDM, a general color histogram (GCH) is developed. Both theoretical and experimental results show that the GCH can be applied to color-image retrievals and recognitions with a high efficiency. | WANG Yi,ZHAI Hongchen,LIANG Yanmei,ZHANG Siyuan & MU Guoguang Institute of Modern Optics,Nankai University,Tianjin 300071,China Key Laboratory of Information Sci-ence and Technology MOE,Tianjin 300071,China | 2004 | Science China(Technological Sciences)2004，47，2： | 3 |
| 16 | Preparation and distribution of 5-fluorouracil ^(125)I sodium alginate-bovine serum albumin nanoparticles显示文摘NTRODUCTIONNanoparticle(NP)isancoloidaldispersionsystem,withdiametersrangingfrom10nmto1000nm.Theparticlesexistmainlyintheorga... | YI Yi Mu 1, YANG Tang Yu 2 and PAN Wei Min 3 | 1999 | World Journal of Gastroenterology1999，5，1： | 3 |
| 17 | A NUMERICAL MODEL OF FAR-FIELD COD CONCENTRATION DISTRIBUTION FOR NATURAL RIVER显示文摘A far field numerical model is developed to simulate jet pollution into natural rivers. Its character is to compute the velocity and pollution concentration separately. The velocity is computed by SIMPLEC algorithm in boundary fitted coordinate systems. The pollution concentration distribution is computed by developed QUAL IIm and QAIIL 2D program. The present model was applied to the Xiantao section of the Hanjiang River a tributary of Yangtze River, and Xiangjiang River. The flow field and COD distribution are in good agreement with field data. | Hou Guo xiang, Li Qi, Shi Zhong kun, Chen Cai kan Faculty of Traffic Sci. & Eng., Huazhong University of Science and Technology, Wuhan 430074, P.R.China Ye Ming, Deng Lian mu Yangtze Water Resources Protection Institute, Wuhan 430051, P.R.China | 2000 | Journal of Hydrodynamics2000，12，1： | 3 |
| 18 | Study on the Relationship Between the Ploidy Level of Microspore-Derived Plants and the Number of Chloroplast in Stomatal Guard Cells in Brassica oleracea显示文摘The relationship between the ploidy level of microspore-derived plants and chloroplast number in stomatal guard cells was studied in cabbage,broccoli,and Chinese kale. In the experiment,distribution statistics analysis and t-test were used to perform statistical analysis on chloroplast number of different ploidy level in those stomatal guard cells mentioned above,and morphology identifying and chromosome counting were used to test accuracy of counting chloroplast number in stomatal guard cells. The chloroplast average number in stomatal guard cells was very similar among the different leaf positions on the same plant and among the different locations in the same leaf,while the chloroplast number varied significantly among the different ploidy stoma in the same variety. All the distributions of the chloroplast number in different ploidy stoma were normal distribution fitted. A correlation has been established between ploidy and chloroplast number in the stomatal guard cells. In every single stoma of microspore-derived plants,the chloroplast number for a haploid should not be more than 10,diploids 11 to 15,and polyploids more than 15. The accuracy of this method for identification of different ploidy plants was 93.93%. Furthermore,the accuracy of this method was reliable and did not vary with the plants growth conditions. Therefore,the chromosome ploidy of plants derived from microspore culture in cabbage,broccoli,and Chinese kale can be identified by simply counting the chloroplast number in stomatal guard cells. | YUAN Su-xia,LIU Yu-mei,FANG Zhi-yuan,YANG Li-mei,ZHUANG Mu,ZHANG Yang-yong and SUN Pei-tian Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,P.R.China | 2009 | Agricultural Sciences in China2009，8，8： | 3 |
| 19 | Experimental study on the relationship of bile acids and myocardium damage in obstructive jaundice显示文摘ExperimentalstudyontherelationshipofbileacidsandmyocardiumdamageinobstructivejaundiceMUYiPingandPENGShuYouSubjectheadingsc... | MU Yi Ping and PENG Shu You | 1997 | World Journal of Gastroenterology1997，3，3： | 3 |
| 20 | Triaxial ellipsoid models of the Moon based on the laser altimetry data of Chang'E-1显示文摘Lunar geodetic parameters, which play an important role in lunar exploration, can be calculated from the gravity and topography data. With the CE-1 altimetry data and LP gravity model, we calculate such geodetic parameters as the principle moment of inertia, the principle inertia axes, equatorial radius, polar radius, mean radius, flattening and offset between center of mass and center of figure (DCOM-COF). According to the CE-1 altimetry data and the above geodetic parameters, a tri-axial ellipsoid (CE-1-LAM-GEO) and a tri-axial level ellipsoid (CE-1-LAM-LEVEL) are calculated individually, providing mass center and figure center offset (DCOM-COF) and parameters more reliable in direction and magnitude. | WANG WenRui1,2,3, LI Fei1, LIU JianJun1, REN Xin2, ZOU XiaoDuan2,3, MU LingLi2, YAN JianGuo1, ZOU YongLiao2, ZHANG HongBo2, Lü Chang2, LIU JianZhong2, ZUO Wei2, SU Yan2, WEN WeiBin2, BIAN Wei2, WANG Min2, LI ChunLai2 & OUYANG ZiYuan2 1 School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China 2 National Astronomical Observatory of Chinese Academy of Sciences, Beijing 100012, China 3 Graduate School of Chinese Academy of Sciences, Beijing 100049, China | 2010 | Science China Earth Sciences2010，53，11： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员