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| 1 | Evolution of the novel coronavirus from the ongoing Wuhan outbreak and modeling of its spike protein for risk of human transmission显示文摘Dear Editor,The occurrence of concentrated pneumonia cases in Wuhan city,Hubei province of China was first reported on December 30,2019 by the Wuhan Municipal Health Commission(WHO,2020).The pneumonia cases were found to be linked to a large seafood and animal market in Wuhan,and measures for sanitation and disinfection were taken swiftly by the local government agency.The Centers for Disease Control and Prevention(CDC)and Chinese health authorities later determined and announced that a novel coronavirus(CoV),denoted as 2019-nCoV,had caused the pneumonia outbreak in Wuhan city(CDC,2020).Scientists from multiple groups had obtained the virus samples from hospitalized patients(Normile,2020).The isolated viruses were morphologically identical when observed under electron microscopy. | Xintian Xu Ping Chen Jingfang Wang Jiannan Feng Hui Zhou Xuan Li Wu Zhong Pei Hao | 2020 | Science China(Life Sciences)2020，63，3： | 737 |
| 2 | Liver fibrosis and hepatic stellate cells: Etiology, pathological hallmarks and therapeutic targets显示文摘Liver fibrosis is a reversible wound-healing process aimed at maintaining organ integrity, and presents as the critical pre-stage of liver cirrhosis, which will eventually progress to hepatocellular carcinoma in the absence of liver transplantation. Fibrosis generally results from chronic hepatic injury caused by various factors, mainly viral infection, schistosomiasis, and alcoholism; however, the exact pathological mechanisms are still unknown. Although numerous drugs have been shown to have antifibrotic activity in vitro and in animal models, none of these drugs have been shown to be efficacious in the clinic. Importantly, hepatic stellate cells(HSCs) play a key role in the initiation, progression, and regression of liver fibrosis by secreting fibrogenic factors that encourage portal fibrocytes, fibroblasts, and bone marrow-derived myofibroblasts to produce collagen and thereby propagate fibrosis. These cells are subject to intricate cross-talk with adjacent cells, resulting in scarring and subsequent liver damage. Thus, an understanding of the molecular mechanisms of liver fibrosis and their relationships with HSCs is essential for the discovery of new therapeutic targets. This comprehensive review outlines the role of HSCs in liver fibrosis and details novel strategies to suppress HSC activity, thereby providing new insights into potential treatments for liver fibrosis. | Chong-Yang Zhang Wei-Gang Yuan Pei He Jia-Hui Lei Chun-Xu Wang | 2016 | World Journal of Gastroenterology2016，22，48： | 114 |
| 3 | Enhanced efficiency of generating induced pluripotent stem (iPS) cells from human somatic cells by a combination of six transcription factors显示文摘 | Jing Liao Zhao Wu Ying Wang Lu Cheng Chun Cui Yuan Gao Taotao Chen Lingjun Rao Siye Chen Nannan Jia Huiming Dai Shunmei Xin Jiuhong Kang Gang Pei Lei Xiao | 2008 | Cell Research2008，18，5： | 61 |
| 4 | Mianlüe tectonic zone and Mianlüe suture zone on southern margin of Qinling-Dabie orogenic belt显示文摘The Mianle tectonic zone (Mianle zone), an ancient suture zone in addition to the Shangdan suture in the Qinling-Dabie orogenic belt, marks an important tectonic division geo-logically separating north from south and connecting east with west in China continent. To de-termine present structural geometry and kinematics in the Mianle tectonic zone and to recon-struct the formation and evolution history involving plate subduction and collision in the Qinling-Dabie orogenic belt, through a multidisciplinary study, are significant for exploring the mountain-building orogenesis of the central orogenic system and the entire process of the major Chinese continental amalgamation during the Indosinian. | ZHANG Guowei1, DONG Yunpeng1, LAI Shaocong1, GUO Anlin1, MENG Qingren2, LIU Shaofeng3, CHENG Shunyou1, YAO Anping1, ZHANG Zongqing4, PEI Xianzhi5 & LI Sanzhong6 1. Department of Geology, Northwest University, Xian 710069, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China 3. Earth Science and Resource Faculty, China University of Geosciences, Beijing 100083, China 4. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China 5. Changan University, Xian 710054, China 6. Qingdao University of Oceanography, Qingdao 266003, China | 2004 | Science China Earth Sciences2004，47，4： | 57 |
| 5 | Zircon U-Pb geochronology of basement metamorphic rocks in the Songliao Basin显示文摘Zircon LA-ICP MS U-Pb dating of six metamorphic rocks and a metagranite (breccia) from southern basement of the Songliao Basin are reported in order to constrain the formation ages of basement. The basement metamorphic rocks in the Songliao Basin mainly consist of metagabbro (L45-1), amphibolite (SN117), metarhyolitical tuff (G190), sericite (Ser) schist (N103), chlorite (Chl) schist (T5-1), biotite (Bi)-actinolite (Act)-quartz (Q) schist (Y205), and metagranite (L44-1). The cathodoluminesence (CL) images of the zircons from metagabbro (L45-1) and metagranite (L44-1) indicate that they have cores of magmatic origin and rims of metamorphic overgrowths. Their U-Pb isotopic ages are 1808±21 Ma and 1873±13 Ma, respectively. The zircons with oscillatory zoning from amphibolite (SN117) and Chl schist (T5-1), being similar to those of mafic igneous rocks, yield ages of 274 ± 3.4 Ma and 264 ± 3.2 Ma, re-spectively. The zircons from metarhyolitical tuff (G190) and Ser schist (N103) display typical magmatic growth zoning and yield ages of 424 ± 4.5 Ma and 287 ± 5.1Ma, respectively. Most of zircons from Bi-Act-Q schist (Y205) are round in shape and different in absorption degree in the CL images, implying their sedimentary detritals. U-Pb dating yield concordant ages of 427 ± 3.1Ma, 455 ± 12 Ma, 696 ± 13 Ma, 1384±62 Ma, 1649±36 Ma, 1778±18 Ma, 2450±9 Ma, 2579±10 Ma, 2793±4 Ma and 2953±14 Ma. The above-mentioned results indicate that the Precambrian crystalline basement (1808―1873 Ma) exists in the southern Songliao Basin and could be related to tectonic thrust, and that the Early Paleozoic (424―490 Ma) and Late Paleozoic magmatisms (264―292 Ma) also occur in the basin basement, which are consistent with the ages of the detrital zircons from Bi-Act-Q schist in the basement. | PEI FuPing XU WenLiang YANG DeBin ZHAO QuanGuo LIU XiaoMing HU ZhaoChu | 2007 | Chinese Science Bulletin2007，52，7： | 57 |
| 6 | Detection of serum TNF-α,IFN-γ,IL-6 and IL-8 in patients with hepatitis B显示文摘NTRODUCTIONSinceMuto[1]reportedthatTNFαandIL1wererelatedtofulminanthepatitis,thestudiesontherelationshipbetweencytokinesa... | WANG Jing Yan, WANG Xue Lian and LIU Pei | 1999 | World Journal of Gastroenterology1999，5，1： | 54 |
| 7 | 基于割集功率空间上的静态电压稳定域局部可视化方法显示文摘提出了一种新型快速的割集功率空间上电压稳定域边界局部近似算法,以用于实现静态电压稳定域的可视化。该算法首先在电力系统状态空间上推导出求解电压稳定域边界局部的线性方程组,利用该方程组可快速地求解出状态空间上的一组近似电压稳定域边界点;然后通过潮流方程将边界映射到割集功率空间上,解决了电压稳定域可视化的降维问题。在此基础上,可利用最小二乘法拟合出割集功率空间上的一个超平面,用以近似地表达电压稳定域边界。IEEE118节点系统算例结果表明,该方法能在割集功率空间上以较小的误差快速地近似表达出电压稳定域边界的局部;算法 对于实现电压稳定域的在线计算及可视化具有一定的实用价值。 | 王成山 许晓菲 余贻鑫 魏炜 STEPHEN T.Lee ZHANG Pei | 2004 | 中国电机工程学报2004，24，9： | 41 |
| 8 | 电压稳定裕度对参数灵敏度求解的新方法显示文摘针对与鞍结分岔相关的电压稳定裕度对参数的灵敏度计算问题,该文提出了一种解线性方程组求灵敏度的新方法。与以往方法不同的是:该方法无需求解鞍结分岔点处潮流雅可比矩阵零特征值对应的左特征向量,而只需求解一个左端系数阵为扩展潮流雅可比矩阵的线性方程组。由于避免了左特征向量的迭代求解,因此该方法简单实用,计算量小,适于在线静态电压稳定分析的使用。另外文中还对另一种普遍存在的分岔形式——限值诱导分岔的特点与灵敏度计算作了探讨。在EPRI1000母线系统算例下的计算表明,本文方法切实可行并具有较高的精度。 | 江伟 王成山 余贻鑫 ZHANG Pei | 2006 | 中国电机工程学报2006，26，2： | 50 |
| 9 | Permian volcanisms in eastern and southeastern margins of the Jiamusi Massif, northeastern China: zircon U-Pb chronology, geochemistry and its tectonic implications显示文摘LA-ICP-MS zircon U-Pb dating and geochemical data for the Late Paleozoic volcanic rocks from eastern and southeastern margins of the Jiamusi Massif are presented to understand the regional tectonic evolution. Zircons from eight representative volcanic rocks are euhedral-subhedral in shape and dis- play striped absorption and fine-scale oscillatory growth zoning as well as high Th/U ratios (0.33―2.37), implying a magmatic origin. The dating results show that the Late Paleozoic volcanic rocks in the study area can be divided into two stages, i.e., the Early Permian (a weighted mean 206Pb/238U age of 288 Ma) and the Middle Permian volcanisms (a weighted mean 206Pb/238U age of 268 Ma). The former is com- posed mainly of basalt, basaltic-andesite, andesite and minor dacite. They are characterized by low SiO2 contents, high Mg# (0.40―0.59), enrichment in Na (Na2O/K2O = 1.26―4.25) and light rare earth elements (LREEs), relative depletion in heavy rare earth elements (HREEs) and high field strength ele- ments (HFSEs), indicating that an active continental margin setting could exist in the eastern margin of the Jiamusi Massif in the Early Permian. The latter consists mainly of rhyolite and minor dacite with high SiO2 (77.23%―77.52%), low MgO (0.11%―0.14%), enrichment in K2O (Na2O/K2O ratios < 0.80) and Rb, Th, U and depletion in Eu, Sr, P and Ti, implying a crust-derived origin. Therefore, it is proposed that the Middle Permian volcanic rocks could have formed under the collision of the Jiamusi and the Khanka Massifs. | MENG En XU WenLiang YANG DeBin PEI FuPing Yu Yang Zhang XingZhou | 2008 | Chinese Science Bulletin2008，53，8： | 42 |
| 10 | Disposable circumcision suture device: clinical effect and patient satisfaction显示文摘根据我们的经验,经历割礼的病人主要关于疼痛和阴茎外观被担心。我们进行了未来的使随机化的试用估计一台新可处理的割礼缝术设备(DCSD ) 的好处。942 个病人的一个总数同等地被划分成三个组(常规割礼,商戒指和可处理的缝术设备组) 。在 DCSD 组的病人是有化合物 5% lidocaine 乳脂的 anesthetized,其它与 2% lidocaine 阴茎块。操作时间, intra 起作用的血损失,切口愈合时间, intra 起作用、手术后的疼痛,阴茎外观和全面满足度被测量。操作时间和 intra 起作用的血损失与传统的组相比在商戒指和缝术设备组是显著地更低的(P <0.001 ) 。Intra 起作用的疼痛与另外的二个组相比是在缝术设备组的更少(P <0.001 ) ;而手术后的疼痛在与另外的二个组相比的传统的组是更高的(P <0.001 ) 。设备(80.57%) 和商戒指(73.57%) 组织的在缝术的病人是与常规割礼组相比对阴茎外观满意的更多(20.06% , P <0.05 ) 。在缝术设备组的病人也比传统的组快显著地愈合了(P <0.01 ) 。全面满足率在缝术设备组(78.66%) 更好与相比常规(47.13%) 并且商戒指(50.00%) 组(P <0.05 ) 。DCSD 和 lidocaine 乳脂的联合导致了更短的操作和切口愈合时间,减少了 intra 起作用、手术后的疼痛并且改进了对化妆外观的耐心的满足。 | Bo-Dong Lv Shi-Geng Zhang Xuan-Wen Zhu Jie Zhang Gang Chen Min-Fu Chen Hong-Liang Shen Zai-Jun Pei Zhao-Dian Chen | 2014 | Asian Journal of Andrology2014，16，3： | 49 |
| 11 | Mesenchymal stem cells derived from human placenta suppress allogeneic umbilical cord blood lymphocyte proliferation显示文摘ABSTRACTHuman placenta-derived mononuclear cells (MNC) were isolated by a Percoll density gradient and cultured in mesen-chymal stem cell (MSC) maintenance medium. The homogenous layer of adherent cells exhibited a typical fibroblast-like morphology, a large expansive potential, and cell cycle characteristics including a subset of quiescent cells. In vitrodifferentiation assays showed the tripotential differentiation capacity of these cells toward adipogenic, osteogenic andchondrogenic lineages. Flow cytometry analyses and immunocytochemistry stain showed that placental MSC was ahomogeneous cell population devoid of hematopoietic cells, which uniformly expressed CD29, CD44, CD73, CD105,CD166, laminin, fibronectin and vimentin while being negative for expression of CD31, CD34, CD45 and α-smoothmuscle actin. Most importantly, immuno-phenotypic analyses demonstrated that these cells expressed class I majorhistocompatibility complex (MHC-I), but they did not express MHC-II molecules. Additionally these cells could sup-press umbilical cord blood (UCB) lymphocytes proliferation induced by cellular or nonspecific mitogenic stimuli. Thisstrongly implies that they may have potential application in allograft transplantation. Since placenta and UCB arehomogeneous, the MSC derived from human placenta can be transplanted combined with hematopoietic stem cells(HSC) from UCB to reduce the potential graft -versus-host disease (GVHD) in recipients. | Chang Dong LI Wei Yuan ZHANG He Lian LI Xiao Xia JIANG Yi ZHANG Pei Hsien TANG Ning MAO | 2005 | Cell Research2005，15，7： | 36 |
| 12 | Glucocorticoids affect the metabolism of bone marrow stromal cells and lead to osteonecrosis of the femoral head: a review显示文摘在 glucocorticoids 的机制考察最近的开发的目的导致了大腿骨的头( ONFH )的 osteonecrosis 并且介绍 ONFH.Data 来源的一个新理论中国语言、英语语言的文学用 MEDLINE ( 1997-2011 )被寻找, Pubmed ( 1997-2011 )和从关于 glucocorticoids 的机制的出版文章的中国语言的文学( 1997-2011 ) .Study 选择数据的索引在最近的国内、外国的文学导致了 ONFH 是 selected.Data 抽取数据 | TAN Gang KANG Peng-de PEI Fu-xing | 2012 | Chinese Medical Journal2012，，1： | 38 |
| 13 | De novo characterization of the root transcriptome of a traditional Chinese medicinal plant Polygonum cuspidatum显示文摘Various active components have been extracted from the root of Polygonum cuspidatum.However,the genetic basis for their activity is virtually unknown.In this study,25600002 short reads (2.3 Gb) of P.cuspidatum root transcriptome were obtained via Illumina HiSeq 2000 sequencing.A total of 86418 unigenes were assembled de novo and annotated.Twelve,18,60 and 54 unigenes were respectively mapped to the mevalonic acid (MVA),methyl-D-erythritol 4-phosphate (MEP),shikimate and resveratrol biosynthesis pathways,suggesting that they are involved in the biosynthesis of pharmaceutically important anthraquinone and resveratrol.Eighteen potential UDP-glycosyltransferase unigenes were identified as the candidates most likely to be involved in the biosynthesis of glycosides of secondary metabolites.Identification of relevant genes could be important in eventually increasing the yields of the medicinally useful constituents of the P.cuspidatum root.From the previously published transcriptome data of 19 non-model plant taxa,1127 shared orthologs were identified and characterized.This information will be very useful for future functional,phylogenetic and evolutionary studies of these plants. | HAO DaCheng MA Pei MU Jun CHEN ShiLin XIAO PeiGen PENG Yong HUO Li XU LiJia SUN Chao | 2012 | Science China(Life Sciences)2012，55，5： | 36 |
| 14 | Regional Tectonic Transformation in East Kunlun Orogenic Belt in Early Paleozoic: Constraints from the Geochronology and Geochemistry of Helegangnaren Alkali-feldspar Granite显示文摘The Helegangnaren feldspar granite exposed in the eastern part of East Kunlun, is characterized by high concentrations of SiO2 and alkaline, low abundances of Fe, Mg and Ca, metaluminous-weak peraluminous. Trace elements analysis shows that the granite is depleted extremely in Ba, Sr and Eu, and rich in some large-ion lithophile elements and high field strength elements. Besides, the granite has high Ga contents, the values of 104 (Ga/Al) vary from 2.50 to 2.77, which is mainly greater than the lower limit of A-type granites (2.6), and is higher than the I-and S-type granites' average (2.1 and 2.28, respectively). Rare earth element (REE) is characterized by relatively high fractionations of light REE (LREE) and heavy REE (HREE) (LREE/HREE=9.3-13.60, (La/Yb)N =10.92-18.02), pronounced negative Eu anomalies (δEu=0.08-0.13), and exhibits right-dipping gull pattern. Major elements, rare elements and trace elements features show the granite is ascribed to A-type granite and A2 subtype in tectonic genetic type. They are plotted into post-collision or within-plate area in a variety of tectonic discriminations. Geological and geochemical data comprehensively suggest that the granite is formed in a post-collision extensive tectonic setting. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U-Pb dating yields a weighted mean age of 425 Ma, belonging to Middle Silurian, which is similar to the age of the post-collision geological events in the region. The differences of magmatic rocks in formation age, rocks assemblage and rocks series systematically indicate that the regional tectonic stress regime in the East Kunlun orogenic belt experienced a major transformation from compress to extension in Middle Silurianin, and the Helegangnaren feldspar granite intruded in the early stage of tectonic transformation. | LI Ruibao PEI Xianzhi LI Zhuochen SUN Yu PEI Lei CHEN Guochao CHEN Youxin LIU Chengjun WEI Fanghui | 2013 | Acta Geologica Sinica(English Edition)2013，87，2： | 35 |
| 15 | The Serum Exosome Derived MicroRNA-135a,-193b, and-384 Were Potential Alzheimer's Disease Biomarkers显示文摘Objective MicroR NAs(mi Rs) are attractive molecules to be considered as one of the blood-based biomarkers for neurodegenerative disorders such as Alzheimer's disease(AD). The goal of this study was to explore their potential value as biomarkers for the diagnosis of AD. Methods The expression levels of exosomal miR-135 a,-193 b, and-384 in the serum from mild cognitive impairment(MCI), dementia of Alzheimer-type(DAT), Parkinson's disease with dementia(PDD), and vascular dementia(VaD) patients were measured with a real-time quantitative reverse transcriptase PCR(qR T-PCR) method. Results Both serum exosome mi R-135 a and miR-384 were up-regulated while miR-193 b was down-regulated in serum of AD patients compared with that of normal controls. Exosome miR-384 was the best among the three miR s to discriminate AD, VaD, and PDD. Using the cut-off value could better interpret these laboratory test results than reference intervals in the AD diagnosis. ROC curve showed that the combination of mi R-135 a,-193 b, and-384 was proved to be better than a particular one for early AD diagnosis. Conclusion Our results indicated that the exosomal miR s in the serum were not only potential biomarker of AD early diagnosis, but might also provide novel insights into the screen and prevention of the disease. | YANG Ting Ting LIU Chen Geng GAO Shi Chao ZHANG Yi WANG Pei Chang | 2018 | Biomedical and Environmental Sciences2018，31，2： | 35 |
| 16 | Abnormal immunity and gene mutation in patients with severe hepatitis-B显示文摘AIM: To evaluate the abnormal immunity and gene mutation at precore 1896 site in patients with severe hepatitis-B.METHODS: This study included 23 patients with severe hepatitis-B, 22 patients with acute hepatitis-B and 20 controls.Mutation at precore 1896 site of HBV gene was confirmed with restriction fragment length polymorphism (RFLP) analysis.Cytokines including TNF-α, IFN-y, IL-6, and IL-8 were measured with ELISA, and T subgroups were detected with alkaline phosphatase anti alkaline phosphatase (APAAP) technique.RESULTS: In patients with severe hepatitis-B, the infective rate of HBV mutant strain was 52.5% (12/23), and only one patient with acute hepatitis-B was infected with the mutant strain. The percentage of CD8+ T lymphocyte was obviously lower (0.16±0.02%) and the ratio of CD4+/CD8+ was obviously higher (2.35±0.89) in mutant group than in wildtype group (0.28±0.05% and 1.31±0.18%, respectively,P<0.01 or P<0.05). The levels of cytokines in patients with severe hepatitis-B were higher (TNF-α 359.0±17.2 ng/L, IFNγ 234.7±16.5 ng/L, IL-6 347.5±31.3 ng/L, IL-8 181.1±19.6ng/L) than those in acute hepatitis-B (TNF-α 220.6±8.9ng/L, IFN-γ 174.9±12.0 ng/L, IL-6 285.8±16.5 ng/L, IL-8118.4±5.1 ng/L, P<0.01 or 0.05). In patients with severe hepatitis-B, the levels of IFN-γ and IL-6 were higher in mutant group (273.4±26.6 ng/L, 387.7±32.5 ng/L) than in wild-type group (207.8±12.8 ng/L, 300.9±16.3 ng/L). The mortality of patients infected with HBV mutant strain was higher (100%)than that with wild-type (0.9%).CONCLUSION: In severe hepatitis-B, the infective rate of HBV mutant strain was high. The mutant strain induces more severe immune disorders in host, resulting in the activation of lymphocyte and release of cytokines. HBV DNA mutates easily in response to the altered immunity. Ultimately liver damage is more prominent. | Jing-Yan Wang Pei Liu Department of Infectious Diseases,the Second Hospital,China Medical University,Shenyang 110004,Liaoning Province,China | 2003 | World Journal of Gastroenterology2003，9，9： | 39 |
| 17 | Failure behavior of a rock-coal-rock combined body with a weak coal interlayer显示文摘Using an MTS 815 testing machine,the deformation and failure behavior of a rock-coal-rock combined body containing a weak coal interlayer has been investigated and described in this paper.Uniaxial loading leads to the appearance of mixed cracks in the coal body which induce instability and lead to bursts in coal.If the mixed crack propagates at a sufficiently high speed to carry enough energy to damage the roof rock,then coal and rock bursts may occur-this is the main mechanism whereby coal bumps or coal and rock bursts occur after excavation unloading.With increasing confining pressure,the failure strength of a rock-coal-rock combined body gradually increases,and the failure mechanism of the coal interlayer also changes,from mixed crack damage under low confining pressures,to parallel crack damage under medium confining pressures,and finally to single shear crack damage or integral mixed section damage under high confining pressures.In general,it is shown that a weak coal interlayer changes the form of overall coal damage in a rock-coal-rock combined body and reduces the overall stability of a coal body.Therefore,the whole failure behavior of a rock-coal-rock combined body in large cutting height working faces is controlled by these mechanisms. | Zuo Jianping Wang Zhaofeng Zhou Hongwei Pei Jianliang Liu Jianfeng | 2013 | International Journal of Mining Science and Technology2013，23，6： | 32 |
| 18 | 割集功率空间上静态电压稳定域的实用边界显示文摘提出了电力系统在割集功率空间上静态电压稳定域边界的实用表达方法。用临界割集将系统分为地理上互不连通的两部分,即相对集中的弱节点区域和非弱节点区域,利用连续潮流,搜索大量的电压稳定临界点,以临界割集上线路的有功和无功潮流为坐标,并通过最小二乘法,将获得的临界点以超平面的形式拟合出电压稳定域的边界,其误差可满足工程应用的要求。这种方法既达到了使复杂电力系统降维的目的,又方便了运行人员监视系统稳定性。同时,电压稳定域边界以超平面形式表示,为电力系统的在线安全分析、评估和优化提供了简明、方便的解析工具。该方法在IEEE 14节点、IEEE 39节点、IEEE 118节点等系统和EPRI 1000节点系统的算例中得到了很好的验证,均以较小误差满足工程需要。 | 李慧玲 余贻鑫 韩琪 宿吉锋 赵金利 Stephen T LEE Pei ZHANG | 2005 | 电力系统自动化2005，29，4： | 32 |
| 19 | 电力系统注入空间静态电压稳定域边界的实用表达式显示文摘电力系统注入空间上的静态电压稳定域(SVSR)是近有效的电压安全监控手段,对其边界的准确表达和快速求取是 SVSR 实用化的重要保证。该文推导了单机单负荷系统 SVSR 边界的解析表达式,在其启发下,通过将系统静态电压稳定临界条件做 Taylor 级数展开,给出了一种注入空间中 SVSR 边界的二次近似解析表达形式;基于模态分析,提出了选择系统关键节点的方法,以实现注入空间的有效降维。最后,通过 IEEE 14 节点、57 节点系统和EPRI 1000 节点测试系统的算例对文中方法的有效性进行了验证,结果表明:当发电与负荷大范围变动时,在不同运行条件下估计注入空间 SVSR 边界的误差均在 3%以下。 | 韩琪 余贻鑫 李慧玲 贾宏杰 李鹏 Stephen T.Lee ZHANG Pei | 2005 | 中国电机工程学报2005，25，5： | 32 |
| 20 | 基于本地相量测量的电压失稳指标工作条件分析显示文摘基于同步相量测量装置(PMU)的电压失稳预测(VIP)指标是基于本地相量测量数据进行电压稳定性分析的方法,它利用最小二乘拟合技术来实时跟踪系统的戴维南等值参数。拟合技术的应用条件和静态电压稳定性的物理意义会对这种指标的使用构成一定限制,若输入的采样数据不满足适当的条件,拟合得到的等值模型没有实际意义,可能造成误判。文中剖析了曲线拟合计算戴维南等值参数时出现参数漂移的原因,据此提出了VIP指标的正确工作条件和有效性判据,确保无效的VIP值不会对运行造成误判。根据实际系统运行数据所做的算例验证了该判据的可靠性。 | 赵金利 余贻鑫 ZHANG Pei | 2006 | 电力系统自动化2006，30，24： | 33 |
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