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Zhongzhi CHEN Jiawei QU Zhende GUAN 《东北亚地学研究》2006,9(2):232-234
The interact of construction and circumstance becomes more and more obviously,and research on it is essentially urgent.The way to solve it,first it relies on quantifiable evaluation to the effects done by different construction techniques,then,choose related techniques which cause less damage according to the endurance of circumstance. 相似文献
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Li CHEN Lei NIE Jijiang LI Delong WANG Xiangyu REN 《东北亚地学研究》2006,9(2):224-226
Nuclear engineering belongs to significant project;there is higher requirement on sitings.The study has discussed basic factors of selecting sites,anti-seismic research on sitings including the seismic ground motion,probability methods of seismic hazard analysis as well as interaction about structure and foundation,meanwhile provide the reason for nuclear engineering selecting sites. 相似文献
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1IntroductionAs industrialization is gaining roots throughout the world and population is increasing, there is the accompanying problem of waste disposal from vari-ous sources. Due to inefficient waste management processes, subsurface water bodies are being con-taminated by various kinds of chemicals (Soliman etal., 1998). PRB is a comparatively new groundwater treat-ment technology where contaminants are converted into harmless by products in situ as the polluted water passes through a re… 相似文献
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1 IntroductionSnowdensificationiscriticalforcalculationsinengineering glaciology,snowavalancheforecasting ,springflooding,andotherpracticalaspects.Itisalsoimportantforinterpretingicecoredataincludingthosetakenfromratherwarmsiteswheresurfacelay ersexperiencemelting ,sinceitwouldaffectthechangeofannuallayerthicknesswithtime.Whileextensivestudies(e.g .AndersonandBenson 1 963 ;Bader1 960 ,1 962 ;Koji ma 1 95 4,1 95 5 ,1 95 6,1 95 7,1 95 8,1 95 9,1 964;Keeler 1 967;Gow 1 975 ;MaenoandE binuma 1… 相似文献
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DAIChang-lei CHIBao-ming YIShu-ping LIZhi-jun 《东北亚地学研究》2004,7(1):64-69
South Yishu geosyncline is 50 km southeast of Changchun City of Jilin Province, where an aquifer is thick,surface runoff is abundant and it has potential to develop water resources preferably. By means of system analysis, the authors analyse the structural characteristics, I/O characteristics, function characteristics and boundary and environment characteristics of the groundwater system, so as to search for a way of optimizing water resources arrangement and enhancing water resources‘bearing capacity. Based on the analysis results, the authors abstract conceptual model and mathematical model of the groundwater system. The simulation results certify and enrich the knowledge about south Yishu geosyncline. 相似文献
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To gain a better understanding of water quality and eutrophication,we investigated the seasonal and spatial distribution of water quality at 17 stations in the Guangzhou Sea Zone (GZSZ).Nutrients,chlorophyll-a (Chl-a),salinity,chemical oxygen demand,and other physical and chemical parameters were determined in February,May,August and October from 2005 to 2007.The concentrations showed ranges of 93.2-530.4 μmol/L for dissolved inorganic nitrogen (DIN),0.62-3.16 μmol/L for phosphate (PO4-P) and 50-127 μmol/L ... 相似文献