|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | LABORATORY MEASUREMENTS IN SINE-GENERATED MEANDERING CHANNELS显示文摘The patterns (In flow plan) of rough turbulent steady flows in sine-generated meandering streams are investigated experimentally. The flow cross-section is rectangular, the flow width is uniform, the channel bed is flat; the plan shape is sine-generated. In contrast to previous works, where the computed flow patterns were of the same character, irrespective of the sinuosity of the channel, it is found, on the basis of present experiments, that every different Plan geometry of a meandering flow has its own flow picture. In the case of 'small' sinuosity, the flow convectively accelerates at the inner bank between the crossover-and apexsections; if, however, the sinuosity is 'large', the now convectively decelerates in the same region. The convergence-divergence areas (in flow Plan) of the present flows are in coincidence with the location of erosion-deposition zones in meandering streams, confirming that the convective behaviour of the vertically-averaged flow alone is sufficient to induce the bed and bank deformation. | A. M. Ferreira da SILVA and M. S YALIN (1 Research Hydraulic Engineer, Hydraulics Laboratory, Waterways Experiment Station, U. S. Army Corps of Engineers, Vicksburg, Mississippi. 2 Emeritus Professor, Department of Civil Engineering, Queen’s University, K | 1997 | International Journal of Sediment Research1997，12，1： | 2 |
| 2 | RATIONAL BASIS FOR SUSPENDED SEDIMENT MODELING显示文摘This paper presents a rational basis to model the transport of suspended sediment. The looseboundary condition for 3D models and the adjustment coefficients for both the depth-integrated 2D and laterally integrated 1D models are treated comprehensively. A combination of Dirichlet and Neumann conditions is proposed as the loose-boundary condition. The adjustment coefficient for 2D models is obtained on the basis of the proposed boundary condition and analytical solutions developed for some simple cases of non-equilibrium transport of sediment in uniform flows. The adjustment coefficient for 1D models for natural rivers is further obtained from lateral integration. Comparisons with analytical solutions and a considerable amount of laboratory and prototype data show that mathematical models developed along the proposed line of attack would well simulate the transport of suspended sediment in practical problems. | Jianjun ZHOU, Biniiang LIN and Bingnan LIN Prof, Dept. of Hydraulic Eng., Tsinghua University, Beijing 100084, P.R. China Senior Lecturer, School of Eng., Cardiff University, Queen’s Buildings, P.O.Box 686, Cardiff, CF14 9EW, UK Dir. Emeritus, China Inst. of Water Resources and Hydropower Res. Formerly, Chief of Sedimentation Panel for TGP Chairman Emeritus of Advising Council, IRTCES, P.O. Box. 366, Beijing 100044, P.R. China | 2003 | International Journal of Sediment Research2003，18，3： | 2 |
| 3 | Intrinsic equations for a relaxed elastic line on an oriented surface显示文摘 | Professor Emeritus H. K. Nickerson Gerald S. Manning | 1988 | Geometriae Dedicata1988，，2： | 1 |
| 4 | Nonlinear Phenomenon in Hydrau- lic System显示文摘 | Satoru Hayashi Emeritus | 1998 | Joumal of Fluid Control1998，18，4： | 1 |
| 5 | Nonlinear phenomenon in hydraulic system 显示文摘 | Emeritus A H | 1998 | Journal of Fluid Control1998，18，4： | 1 |
| 6 | Global advances in poultry disease research显示文摘 | Simon M Emeritus S | 2001 | World poultry2001，，7： | 1 |
| 7 | Intrinsic equations for a relaxed elastic line on an oriented surface显示文摘 | Professor Emeritus H. K. Nickerson Gerald S. Manning | 1988 | Geometriae Dedicata1988，，2： | 1 |
| 8 | Models and Mettics for Evaluating Local Electronic Government Systems and Services显示文摘 | TONI CARBO WILLIAMS J G EMERITUS | 2004 | Electronic Journal of e - Government2004，2，2： | 1 |
| 9 | Models and Metrics for Evaluating Local Electronic Government Systems and Service显示文摘 | TONI CARBO WILLIAMS J G EMERITUS | 2004 | Electronic Journal of e-Government2004，，2： | 1 |
| 10 | ASIST Award of Merit Accepance : on the fragmentaion of knowledge, the connection exploion, and assembing other people's 显示文摘 | Emeritus Swanson DR | 2005 | Bullttin of the American Socitey for Information Science&Technology2005，27，3： | 1 |
| 11 | LONGITUDINAL DISPERSION IN OPEN-CHANNEL FLOW显示文摘Laboratory experiments on longitudinal dispersion in clear-water and sedimentladen flows are reported. These experiments indicate that the presence of suspended sediment does not have a significant effect on the dispersion process other than its possible effect on the friction factor. Analysis of the writers’ and other’s data collected in laboratory flumes and natural streams Shows that Taylor’s model of longitudinal dispersion based on one-dimensional Fickian diffusion equation with a constant dispersion coefficient, DL, is not suitable for describing the dispersion process in natural streams as DL tends to increase in the downstream direction. Therefore, a similarity analysis of the concentration distributions, on the lines of Day and Wood, has been carried out. Based on dimensional analysis an improved empirical method has been obtained for predicting the concentration-time relation without the use of | U.P. SINGH, R.J. GARDE, and K.G. RANGA RAJU ( Reader in Civil Engg, Institute of Technolngy, Banaras University, Varanasi, India Emeritus Scientist, Central Water and Power Research Station, Pune, India Professor of Civil Engg., University of Roorkee, India.) | 1992 | International Journal of Sediment Research1992，7，2： | 1 |
| 12 | Nonlinear phenomenon in hydraulic system 显示文摘 | Emeritus A H | 1998 | Journal of Fluid Control1998，18，4： | 1 |
| 13 | FIBER RESOURCE AVAILABILITY FOR THE CHINESE PULP AND PAPER INDUSTRY显示文摘Total P & B production in China's Mainland has been reported to be 37.8 million metric tons for the year 2002. A goal of 50-60 million metric tons of total P & B production has been set for the year 2010. By that time, domestic virgin woodpulp production will be doubled, with pulpwood supply from plantations in the country and supplemented by imported woodchips and pulpwoods. Imported market woodpulp will still play an important role in the Chinese industry. Non-wood fibers will stay as an indispensable sustaining fibers source for the growth of the Chinese industry. Increases in reed, bamboo and wheat straw pulping capacities will be expected within the years. Efforts will have to be taken for the promotion of domestic wastepaper recycling, hoping to have the recycling rate upgraded to 35-38% by the end of this decade. Aside from the intensified domestic wastepaper recovery, a 6-8% average annual increase in wastepaper importation will be expected in the foreseeable future. | XiangJu* Zhong*Professor Emeritus Senior Adviser, International Liaison, China Technical Association of the Paper Industry, (CTAPI), 12 Guang Hua Road, Beijing 100020, P.R. China. | 2004 | 天津科技大学学报2004，19，A01： | 0 |
| 14 | Assessing mitigation options for greenhouse warming显示文摘Greenhouse gases and global warming have received increasing attention in recent years and gained a prominent place on national andinternational agendas.In 1988 the United States Congress asked the U.S.National Academy of Sciences to conduct a study on the policyimplications of greenhouse warming.One of the tasks in the study was to examine mitigation options and develop an assessment methodologyfor them.This task was undertaken by a panel of 19 scientists,economists,and engineers.The author was the Chairman of that panel.In thispaper,the methodology developed-the“technologicar costing”method-is briefly reviewed and the reasons for choosing it over economicmodeling were discussed.It concludes with a discussion on how the greenhouse warming problem may affect the energy and power systemof the future. | Thomas H.Lee,Professor Emeritus Department of Electrical Engineering and Computer Science,Massachusetts Institute of Technology,Cambridge,MA USA | 1992 | Electricity1992，，1： | 0 |
| 15 | FORECASTING IMPACTS OF HYDRAULIC STRUCTURESON AN ALLUVIAL RIVER显示文摘In the last decades the construction of large hydraulic projects on alluvial rivers in China has spurred the development of both physical and one-dimensional mathematical modeling to the point that deposition and erosion predicted by modeling in either way conform to prototype observations over periods of 3 to 19 years. The prototype data are those of Gezhouba on the Yangtze River and Danjiangkou on the Han River. The accuracy attained is in the neighborhood of 20% which is considered good enough in sedimentation engineering. Thus these techniques of modeling may be applied to forecast the impacts of hydraulic structures on an alluvial river. Mathematical modeling in 2 space variables has also been developed, but still awaits further verification. | LIN Bingnan ( Director Emeritus, IWHR Chairman of Advisory Council, IRTCES Professor of Tsinghua University, Beijing, China) | 1992 | International Journal of Sediment Research1992，7，1： | 0 |
| 16 | Strategic Direction of Libraries in Knowledge Management显示文摘1 Introduction “Knowledge Management”has become a popular term inthe business world during the last decade of the 20th century.It was the business world that recognizes at first theimportance of knowledge in the“global economy”of the“knowledge age”. In the new knowledge economy,knowledge is power,especially if it is shared and put tocreative use. The possession of relevant and strategicknowledge and its unceasing renewal enables businesses togain competitive advantage. | Hwa-Wei Lee(Dean Emeritus, Ohio University Libraries, and Visiting Distinguished Scholar, OCLC Online Computer Library Center,U S A) | 2002 | 现代图书情报技术2002，，S1： | 0 |
| 17 | 对慢性肾脏病的争议:扩展定义使许多人被贴上患病标签显示文摘该文来自于过度诊断系列文章,主要审视了疾病定义的扩展和新诊断技术的运用给患者带来的风险和危害。2002年美国肾脏病基金会发布了慢性肾脏病(CKD)定义和分类的新框架’(以下简称“框架”),此前对CKD的命名不一,包括肾功能不全、肾损伤和肾衰竭,该框架规范了CKD定义而被广为接受。 | Ray Moynihansenior research fellow Richard Glassock emeritus professor, department of medicine Jenny Doust professor 汤涛涛 刘必成 | 2015 | 英国医学杂志中文版2015，0，6： | 0 |
| 18 | 雷宜锌大师:艺术的卓越超越了文化和人口边界显示文摘华盛顿的纪念碑展示了雷宜锌对雕刻的精通远远超过一个标志性的艺术工作。它是坐落于被统称为“林荫大道”的神圣区域中奉献给前总统华盛顿、杰斐逊、林肯和罗斯福纪念碑之间的一座丰碑。马丁·路德·金的纪念碑作为唯一的非总统和唯一获此殊荣的美国黑人, | Jon Onye Lockard Emeritus | 2012 | 创作与评论2012，，1： | 0 |
| 19 | DIVERTING SEAWATER TO SCOUR THE ESTUARY-A QUEST FOR NEW APPROACH TO REGULATETHE LOWER YELLOW RIVER-显示文摘The Lower Yellow River is an above-the-ground river. Flood control has always been a critical problem.Although prolong dry spell and large-scale withdrawal of river water by the riparian people have causedthe river to dry up for a certain period every year since 1972, flood is still threatening, because a dry spellmight well be followed by a wet one in the future. During the past dry years. however, the main channelhas been silted up in many places because of inadequate flow for the transport of heavy sediment load.The stages for the same flood would then be higher and the flow pattern more unpredictable. The leveesare thus exposed to greater danger. In order to restore the main channels, scour by diverting seawater isproposed. Altogether about 360 km of the river may be deepened. In addition to scouring, discharge ofturbid saline flow to Bohai sea would help ease the ecological and environmental problems there. Thefresh water supply of the estuarine area may be increased by trading the fresh water flow originally setaside for scouring with that of seawater. | Bingnan LIN1 Jianjun ZHOU2 and Ren ZHANG2(1Prof. and Dir. Emeritus, China institute of Water Resources and Hydropower Research, Chairman of AdvisoryCouncil, IRTCES, P.O. Box 366, 100044 Beijing China.)(2Professors. Dept. of Hydraulic Engineering, Tsin | 1999 | International Journal of Sediment Research1999，14，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员