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| 1 | TBM的应用及其有关问题和展望显示文摘 | Zhang Jingjian(North China Institute of Water Conservancy and Hydroelectric Prower, Zhengzhou 450045) | 1999 | 岩石力学与工程学报1999，18，3： | 84 |
| 2 | 关于外语专业教育改革的思考显示文摘关于外语专业教育改革的思考北方课题组在国家教委高教司外语处的指导下,北方课题组从1996年6月起对外语院系毕业生及用人单位作了重点调查研究,收集到大量数据,并召开了有关部委及用人单位部门负责人参加的“21世纪外语人才研讨会”及各校的教授、专家座谈会。... | North Project Group | 1998 | 外语教学与研究1998，30，3： | 67 |
| 3 | 关于外语专业毕业生的调查报告显示文摘关于外语专业毕业生的调查报告北方课题组一、面向21世纪教学内容和课程体系改革课题的背景和工作进程1.立项背景随着我国改革开放、市场经济的不断推进和对外交往的扩大,社会对高级专门人才的需求也发生了变化,教育的不适应显得越来越突出。解决“适应”问题的根... | North Project Group | 1998 | 外语教学与研究1998，30，3： | 55 |
| 4 | 铝合金搅拌摩擦焊接头行为分析显示文摘详细介绍了搅拌摩擦焊 (FSW)接头塑性流变数值模拟所得到的结果 ,并且利用搅拌摩擦焊的“插入试验” ,测量了搅拌头旋转着插入铝合金材料过程中作用在搅拌头上的作用力 ,并将之转化为有效的粘度值和温度输出 ,确定了搅拌摩擦焊过程中充分塑化区 (FPZ)的材料粘性。 3 -D数值模拟结果显示了搅拌头肩台下大约 1.5mm的紊流区域的形成 ;解释了在异种金属搅拌摩擦焊焊接过程中无序混合产生的间混薄层结构 ,以及局部液相形成 (初始熔化 )引起的搅拌头的瞬间滑移导致了在特定的温度下 (Tcrit) | 栾国红 North T H 郭德伦 张田仓 | 2002 | 焊接学报2002，23，6： | 43 |
| 5 | Climate change tendency and grassland vegetation response during the growth season in Three-River Source Region显示文摘Climate change,climate suitablity change for grassland vegetation,and grassland response to climate change during the growth season are studied systematically by using meteorological data of temperature,precipitation,and length of sunlight from 1961 to 2007,NOAA/AVHRR NDVI from 1982 to 2006,and observations of grass height,biomass,and coverage in enclosed grassland from 1994 to 2006.Two models are developed to evaluate climate change and the climatic suitability of grassland vegetation growth.Average temperature,accumulative precipitation,and length of sunlight during the growth season increased from 1961 to 2007 at rates of 0.24°C/10 yr,2.32 mm/10 yr,and 2.81 h/10 yr,respectively.The increase rates of ave-rage temperature between April and May,and between June and August are 0.17 and 0.30°C/10 yr;accumulative rainfall between April and May increased at a rate of 2.80 mm/10 yr,and accumulative rainfall between June and August decreased at a rate of 0.38 mm/10 yr;the increase rates of accumulative length of sunlight between April and May,and between June and August are 2.15 and 1.2 h/10 yr.The climatic suitability of grassland vegetation growth showed an increasing trend,and the increase rate between April and May is greater than that between June and August.Both NDVI observations from 1982 to 2006 and measurements of grass height,dry biomass,and coverage from 1994 to 2006 show that the climate change has resulted in an increase in plant productivity of the grassland in Three-River Source Region.If some protection measures are taken as soon as possible,the deteriorated grassland in Three-River Source Region can recover. | QIAN Shuan1,FU Yang2 & PAN FeiFei3 1 National Meteorological Center,Beijing 100081,China 2 Qinghai Meteorological Research Institute,Xining 810001,China 3 Department of Geography,University of North Texas,Denton,TX 76203,USA | 2010 | Science China Earth Sciences2010，53，10： | 25 |
| 6 | Measures against the adverse impact of natural wind on air-cooled condensers in power plant显示文摘The natural wind plays disadvantageous roles in the operation of air-cooled steam condensers in power plant.It is of use to take various measures against the adverse effect of wind for the performance improvement of air-cooled condensers.Based on representative 2×600 MW direct air-cooled power plant,three ways that can arrange and optimize the flow field of cooling air thus enhance the heat transfer of air-cooled condensers were proposed.The physical and mathematical models of air-cooled condensers with various flow leading measures were presented and the flow and temperature fields of cooling air were obtained by CFD simulation.The back pressures of turbine were calculated for different measures on the basis of the heat transfer model of air-cooled condensers.The results show that the performance of air-cooled condensers is improved thus the back pressure of turbine is lowered to some extent by taking measures against the adverse impact of natural wind. | YANG LiJun,DU XiaoZe & YANG YongPing Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education of China,North China Electric Power University,Beijing 102206,China | 2010 | Science China(Technological Sciences)2010，53，5： | 21 |
| 7 | The cloning of 3'-truncated preS/S gene from HBV genomic DNA and its expression in transgenic mice显示文摘INTRODUCTIONHepatitis B virus (HBV) is regarded as one of themain etiologic factors involved in the developmentof human hepatocellular carcinoma (HCC).The open reading frame (orf)of X gene of HBVencoded a transactivating factor is the evidence thatstrongly supported the notion that the X gene ofHBV DNA integrated in HCC genomic DNA couldcontribute to the carcinogenesis of liver cells byactivation of some related cellular genes | Yi Ping Hu~1 Yu Cheng Yao~1 Jian Xiu Li~1 Xin Min Wang~1 Hong Li~2 Zhong Hua Wang~1 Zhang Heng Lei~3 1 Department of Cell Biology,Second Military Medical University,Shanghai 200433,China 2 Department of Biology,Department of Basic Medicine,West-China University of Medical Sciences,Chengdu 610041,China 3 Department of Biology,North Sichuan Medical College,Nanchong 637007,China | 2000 | World Journal of Gastroenterology2000，6，5： | 18 |
| 8 | Meta-analysis of the relationship between Epstein-Barr virus infection and clinicopathological features of patients with gastric carcinoma显示文摘Epstein-Barr virus (EBV) infection has been causally associated with occurrence of many malignant neoplasms. EBV-encoded small RNAs (EBERs) have been detected from about 10% of gastric carcinoma tissue cells, suggesting that EBV infection is associated with the development of gastric carcinoma. The present study pooled the data from the papers concerning EBV-related gastric cancers and performed a meta-analysis of 22 research papers. Among these papers, a total of 5475 cases with gastric cancer were enrolled, of whom 411 cases were found EBV-positive, with the EBV-positive rate being 7.5%. Among the EBV-positive gastric cancer cases, the detection rate was 11.1% in males and 3.0% in females. Compared with EBV-negative gastric cancer, EBV-positive gastric cancer had less lymph node metastasis. Based on the histological typing, of the EBV-positive gastric cancers, the diffuse type was 8.1%, and intestinal type was 8.0%. The examined specimen types included stored paraffin blocks and fresh surgically removed specimens, their EBV positive rates were 7.9% and 6.5% respectively. In terms of geographical distribution, the detection rate of EBV-positive gastric cancer was 9.4% in America, 6.1% in Asia and 9.1% in Europe. Meta-analysis showed that EBV infection occurred only in gastric cancer tissue cells and was significantly associated with the patients’ gender, lymph node metastases, and the location where tumor tissue generated and geographical distribution (P<0.05), but was not significantly associated with the patients’ histological types of tumor and the types of specimens (P>0.05). These results suggested that EBV-positive gastric cancer has distinct clinicopathological features. | LI ShuYing1,2, DU HaiJun3, WANG Zhan3, ZHOU Ling3, ZHAO XiaoYu1 & ZENG Yi3 1 College of Life Sciences, Hebei University, Baoding 071002, China 2 Department of Pathogenic Biology, Faculty of Biological Science, North China Coal Medical College, Tangshan 063000, China 3 National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (Chinese CDC), State Key Laboratory for Infectious Disease Prevention and Control (SKLID), Beijing 100052, China | 2010 | Science China(Life Sciences)2010，53，4： | 17 |
| 9 | Relationship of functional gastrointestinal disorders and psychiatric disorders: Implications for treatment显示文摘这篇文章重游在象急躁的肠症候群( IBS )那样的精神病理学和功能的胃肠的混乱之间的连接,讨论抗抑郁剂的合理使用以及非药理学来临到 IBS 的管理,并且从知识的现在的状态基于一个学科交差的观点为 IBS 的处理建议指南。精神病学的混乱上的相关出版文学,特别躯体化混乱在 IBS 的上下文,并且为管理的文学提供方向被考察,并且新方向在文学从调查结果被提供。IBS 是有为它的临床的演讲负责的各种各样的潜在的机制的异构的症候群。IBS 与在另外的机关系统的精神病学的问题, unexplained 症状,和功能的症候群典型地是复杂的。没有表明的原因,大多数 IBS 病人有多重抱怨,并且这些症状能包含除肠以外的系统,例如骨头和关节(fibromyalgia,颞下颌关节症候群) ,心(非心脏的胸痛) ,脉管(绝经后的症候群) ,并且大脑(焦虑,消沉) 。大多数 IBS 病人没有精神病学的病伴随他们的 somatoform (当医药混乱不在时的物理症状) 的精神分析形式(当精神病学的混乱不在时的心理抱怨) 的本身,而是一个范围症状抱怨。作为精神病学的病人把 IBS 病人标记不是正确的(除了有真躯体化的那些更困难的病人混乱) 。治疗的一个模式是不大可能的普遍有效或解决大多数症状。心理疗法或认知行为的治疗的技术能允许 IBS 病人与他们的病更乐意地处理。特定的事件压抑或焦虑混乱能为那些条件作为适当被管理。设计改进焦虑或消沉的药不为在 IBS 的精神病学的抱怨是一致地有用的,因为听起来类似于在精神病学的混乱看见的那些的精神分析形式症状不能与 IBS 在病人有一样的意义。 | Carol S North Barry A Hong David H Alpers | 2007 | World Journal of Gastroenterology2007，13，14： | 17 |
| 10 | Experiments and reaction characteristics of liquid phase simultaneous removal of SO_2 and NO显示文摘Experiments of simultaneous removal of SO2 and NO from simulated flue gas,using NaClO2 solution as the absorbent,were carried out in a self-designed bubble reactor,and high simultaneous removal effi-ciencies of SO2 and NO were obtained under the optimal experimental conditions.The mechanism of simultaneous removal based on NaClO2 acid solutions was proposed by analyzing the removal prod-ucts.Possibility and limitation of the desulfurization and denitrification using NaClO2 acid solutions were calculated by thermodynamic methods.Experimental results of reaction kinetics for simultaneous desulfurization and denitrification indicated that the oxidation-absorption processes of SO2 and NO were divided into two zones,namely the fast and slow reaction zones.In the slow reaction zones both were zero order reactions,and in the fast reaction zones,the reaction order,rate constant and activa-tion energy of SO2 reaction with absorbent were 1.4,1.22(mol.L-1)-0.4.s-1 and 66.25kJ.mol-1,respec-tively,and 2,3.15×103(mol.L-1)-1.s-1,and 42.50 kJ.mol-1 for NO reaction,respectively. | ZHAO Yi,LIU Feng,GUO TianXiang & ZHAO Yin School of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China | 2009 | Science China(Technological Sciences)2009，52，6： | 15 |
| 11 | CT and MR imaging patterns for pancreatic carcinoma invading the extrapancreatic neural plexus (Part Ⅱ):Imaging of pancreatic carcinoma nerve invasion显示文摘Computed tomography (CT) and magnetic resonance imaging (MRI) are excellent modalities which have the ability to detect,depict and stage the nerve invasion associated with pancreatic carcinoma.The aim of this article is to review the CT and MR patterns of pancreatic carcinoma invading the extrapancreatic neural plexus and thus provide useful information which could help the choice of treatment methods.Pancreatic carcinoma is a common malignant neoplasm with a high mortality rate.There are many factors influencing the prognosis and treatment options for those patients suffering from pancreatic carcinoma,such as lymphatic metastasis,adjacent organs or tissue invasion,etc.Among these factors,extrapancreatic neural plexus invasion is recognized as an important factor when considering the management of the patients. | Hou-Dong Zuo,Wei Tang,Xiao-Ming Zhang,Qiong-Hui Zhao,Bo Xiao,Sichuan Key Laboratory of Medical Imaging,Department of Radiology,Affiliated Hospital of North Sichuan Medical College,Nanchong 637000,Sichuan Province,China | 2012 | World Journal of Radiology2012，4，1： | 13 |
| 12 | POLYMER CHARGE AND MOLECULAR WEIGHT EFFECTS ON TREATED IRRIGATION FURROW PROCESSES显示文摘Application of 5-10 mg L-1 water soluble anionic polyacrylamide (PAM) to furrow irrigation water during flow advance substantially reduces sediment loss and increases net infiltration. We hypothesized that PAM_s solvated molecular conformation influences its irrigation-management efficacy. The study was conducted in Kimberly, Idaho, on Portneuf silt loam (Durinodic Xeric Haplocalcids), under furrowirrigated beans (Phaseolus vulgaris ) at a 1.5% slope. Polyacrylamides with contrasting molecular weight (anionic; 4-7, 12- 15 and 14-17 MDa, i.e. Mg mol-1 ), charge type (neutral, anionic, cationic), and charge density (8, 19, 35 mol %) were tested in two studies. Inflow rate was 23 L min-1 during furrow advance, and 15 L min-1 for the remaining set. Anionic and neutral PAMs were twice as effective as cationic PAMs for controlling sediment loss in new furrows. The order of effectiveness for overall soilloss control was : anionic >neutral >cationic PAM, and efficacy increased with increasing charge density and/or molecular weight. Net furrow infiltration increased by 14 to 19% when PAM treatment molecular weight was reduced from 17 to 4 MDa. General trends suggested that medium and high charge density anionic and neutral PAM produced the greatest increase in infiltration compared with controls.Compared with untreated furrows, neutral PAM gave the greatest season-long net infiltration gains (5%),while charged PAMs tended to increase net infiltration early in the season on new furrows but decreased infiltration on repeat-irrigated furrows later in the season. | R. D. Lentz(USDA-ARS, Northwest Irrigation and Soils Research Laboratory, Kimberly, ID)R. E. Sojka (Landcare Research, New Zealand, Ltd, Palmerston North, New ZealandNote: The manucript of this paper was received in March 1999, Discussion open until March | 2000 | International Journal of Sediment Research2000，15，1： | 13 |
| 13 | Crank conditions and rotatability of 3-RRR planar parallel mechanisms显示文摘This paper investigates the rotatability of planar parallel mechanisms by revealing the crank conditions that relate to link parameters.The paper extends the theorem of assemblability and the rotatability criterion and applies these criteria to parallel mechanisms in investigating the crank conditions of a parallel mechanism,leading to classification of three types of crank existing conditions including three-crank’s,six-crank’s and nine-crank’s of 3-RRR planar parallel mechanisms.The results are summarized as constraint conditions in relation with link parameters with a concluding table and case studies. | LI RuiQin 1 &DAI Jian S 2 1 College of Mechanical Engineering and Automation,North University of China,Taiyuan 030051,China 2 Department of Mechanical Engineering,King’s College London,University of London,WC2R 2LS,UK | 2009 | Science China(Technological Sciences)2009，52，12： | 12 |
| 14 | 中国北方岩溶含水介质研究显示文摘岩溶含水介质是决定岩溶水文地质系统功能的最基本要素,是水文地质工作者长期关注的问题之一。本文把碳酸盐岩岩石学的现代理论同岩溶学、洞穴学、构造地质学与水文地质学密切结合起来,对碳酸盐岩骨架、岩溶含水空间的微观和宏观介质特征进行了深入的研究,把中国北方岩溶含水介质概化为五种类型。 | Working Group of the Research Project Groundwater Resources in Karst Areas of North China and Prediction, Use and Management of Karst Water in Mine Areas | 1990 | 中国岩溶1990，9，4： | 12 |
| 15 | The Simultaneous Approximation Order by Hermite Interpolation in a Smooth Domain | Tian Liang TU Department of Information Engineering, North China Institute of Hydroelectricity, Zhengzhou 450045, P. R. China | 2002 | Acta Mathematica Sinica,English Series2002，18，4： | 12 |
| 16 | Sorption of Eu(Ⅲ) on GMZ bentonite in the absence/presence of humic acid studied by batch and XAFS techniques显示文摘Bentonite has been extensively studied because of its strong sorption ability and low permeability.In this work,the Na-bentonite from Gaomiaozi County (China) has been characterized by XRD,FTIR and acid-base titration.The sorption of Eu(III) on Na-bentonite in the absence/presence of humic acid (HA) was studied at T = 25 ± 2 °C and in 0.01 mol/L NaClO4 solution.The effects of pH,HA,contact time and initial Eu(III) concentrations were also investigated.The results indicate that the sorption of Eu(III) on Na-bentonite was dependent on pH values.The presence of HA had little effect on Eu(III) sorption at low pH values,but decreased Eu(III) sorption at high pH values.X-ray absorption fine structure spectroscopy (XAFS) was applied to characterize the local structural environment of the adsorbed Eu(III) on bare Na-bentonite and HA-bentonite hybrids.The re- sults indicate that Eu(III) was bound to O atoms at a distance of about 2.39 at pH 4.15.The results are crucial for the evalua- tion of the sorption and migration of other trivalent lanthanides and actinides in bentonite as backfill materials. | HU Jun1,2,XIE Zhi3,HE Bo3,SHENG GuoDong1,CHEN ChangLun1,LI JiaXing1,CHEN YiXue2 & WANG XiangKe1 1Key Laboratory of Novel Thin Film Solar Cells Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China 2School of Nuclear Science and Engineering,North China Electric Power University,Beijing 102206,China 3National Synchrotron Radiation Laboratory,University of Science & Technology of China,Hefei 230029,China | 2010 | Science China Chemistry2010，53，6： | 12 |
| 17 | Soil erosion and sediment transport in the gullied Loess Plateau:Scale effects and their mechanisms显示文摘Scale effects exist in the whole process of rainfall―runoff―soil erosion―sediment transport in river basins.The differences of hydrographs and sediment graphs in different positions in a river basin are treated as basic scale effects,which are more complex in the gullied Loess Plateau,a region notorious for high intensity soil erosion and hyper-concentrated sediment-laden flow.The up-scaling method of direct extrapolation that maintains dynamical mechanism effective in large scale application was cho-sen as the methodology of this paper.Firstly,scale effects of hydrographs and sediment graphs were analyzed by using field data,and key sub-processes and their mechanisms contributing to scale effects were clearly defined.Then,the Digital Yellow River Model that integrates sub-models for the sub-processes was used with high resolution to simulate rainfall―runoff―soil erosion―sediment transport response in Chabagou watershed,and the distributed results representing scale effects were obtained.Finally,analysis on the simulation results was carried out.It was shown that gravitational erosion and hyper-concentrated flow contribute most to the spatial variation of hydrographs and sediment graphs in the spatial scale.Different spatial scale distributions and superposition of different sub-processes are the mechanisms of scale effects. | LI TieJian1,WANG GuangQian1,XUE Hai2,3 & WANG Kai4 1 State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China 2 Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China 3 North China Institute of Water Conservancy and Hydropower,Zhengzhou 450008,China 4 China Institute of Water Resources and Hydropower Research,Beijing 100038,China | 2009 | Science China(Technological Sciences)2009，52，5： | 11 |
| 18 | AZ31镁合金搅拌摩擦点焊显示文摘研究了搅拌头旋转频率以及停留时间对AZ31镁合金搅拌摩擦点焊接头力学性能的影响.随着旋转频率的增大,不同搅拌针条件下,AZ31搅拌摩擦点焊接头的力学性能均呈现先增大后减小的趋势.随着停留时间的延长,AZ31搅拌摩擦点焊接头的力学性能先增大随后在一定范围内波动.结果表明,结合宽度是影响搅拌摩擦点焊接头力学性能的重要因素,结合宽度越大,点焊接头的力学性能越好;此外,上下板之间界面特征对搅拌摩擦点焊接头的力学性能也具有重要的影响. | 尹玉环 胡绳荪 North T.H. 张晓博 孙娜 | 2011 | 焊接学报2011，32，3： | 10 |
| 19 | Application of polynomial chaos on numerical simulation of stochastic cavity flow显示文摘In present paper,the mathematic background of intrusive polynomial chaos (IPC) method and coupling process with one dimension Euler equation were introduced. The IPC method was implemented for the 2D compressible stochastic Navier-Stokes equations to simulate the non-deterministic behavior of a lid driven cavity flow under the influence of uncertainties. The driven velocity and fluid viscosity were supposed respectively to be the uncertain variable which has Gaussian probability distribution. Based on the validation with benchmark results,discussions were mainly focused on the statistic properties of velocity distribution. The results indicated the effect of IPC method on the simulation of propagation of uncertainty in the flow field. For the simulated results of 2D cavity flow,influence of the driven velocity uncertainty is larger than that of viscosity. | WANG XiaoDong1,2 & KANG Shun1 1 Key Laboratory of Condition Monitoring and Control for Power Plant Equipment, Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China 2 Department of Mechanical Engineering, Vrije Universiteit Brussel, Brussels 1050, Belgium | 2010 | Science China(Technological Sciences)2010，53，10： | 9 |
| 20 | Rainfall interception by sand-stabilizing shrubs related to crown structure显示文摘On the edge of the Tengger Desert in northern China,revegetation has changed the landscape from moving dunes to stabilized dunes covered by shrubs,which further modifies the pattern of rainfall redistribution.To study rainfall interception loss by shrubs and its relationship to rainfall properties and crown structure,throughfalls passing through crowns of Artemisia ordosica Krash.and Caragana korshinskii Kom.were measured using nine PVC cups under the canopy of each of the two shrubs during 73 rain events over a three-year period,with total rainfall of 260.9 mm.Interception losses of gross rainfall by A.ordosica and C.korshinskii account for 15% and 27% of the total on a crown area basis,and 6% and 11% on a ground area basis,respectively.Individual throughfall(T) and interception(I) were significantly related to rainfall amount(Pg),duration(D),and intensity(R).Ratios of throughfall to rainfall(T/Pg) and interception to rainfall(I/Pg) were not only significantly related to Pg,D,and R,but also to shrub species,and interactions of species with crown volume(CV) and leaf area index(LAI).Under most rain events,interceptions by C.korshinskii with greater CV and LAI were significantly higher than those by A.ordosica,and more rainfall interception occurred at locations closer to the stems of the two shrubs.For C.korshinskii,I/Pg had a significant positive linear relation with CV and LAI,while T/Pg had a significant negative linear relation with them.CV has a greater influence on T/Pg and I/Pg than does LAI.Using a regression method,canopy water storage capacities are estimated to be 0.52 and 0.68 mm,and free throughfall coefficient to be 0.62 and 0.47 for A.ordosica and C.korshinskii,respectively. | ZhiShan Zhang 1*,XinRong Li 1,XueJun Dong 2,XiaoHong Jia 1,MingZhu He 1,HuiJuan Tan 1 1.Shapotou Desert Research and Experiment Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,Gansu 730000,China.2.Central Grasslands Research Extension Center,North Dakota State University,Streeter,ND 58483,USA. | 2009 | Research in Cold and Arid Regions2009，1，2： | 9 |
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