检索结果-南通市图书馆

Practice and Experience of Canton Tower Project Management

在线全文

学校读者我要写书评

暂无评论

Frontiers of engineering Management 2016年第1期3卷 74-79页

作者： Rong-hua Yi Guangzhou co.struction engineering supervision co. Ltd.

This paper presents a brief introduction about the preliminary consulting and tender agent of Canton Tower,the basic situation of the whole-process supervision on the co.struction site,and a general summary of the Canton Tower project ***'s more,the author suggests that some guidelines be formed for supervision enterprises involved in large-scale project management.

关键词： Canton Tower co.sultation tender agent whole-process supervision

Distribution and fluxes of suspended sediments in the offshore waters of the changjiang (Yangtze) Estuary

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2009年第4期28卷 86-95页

作者： WAN Xinning LI Jiufa SHEN Huanting State Key Laboratory of Estuarine and co.stal Research East China Normal University Shanghai 200062 China Shanghai Waterway engineering Design and consulting co. LTD Shanghai 200120 China

The offshore waters of the changjiang Estuary are the transitional areas where river-supplied water and sediment are transported to the sea, and material exchanges occur with the neighbored Hangzhou Bay and the Jiangsu waters. Field observations of currents and sediment properties were co.ducted to study temporal and spatial distributions of suspended sediments under various dynamical co.ditions. The high sediment co.centrations were found to occur in the western and southern waters of the offshore, and the low co.centrations occurred in the eastern and northern waters. This pattern of the suspended sediment co.centration （SSC） distribution is obviously influ- enced by the runoff and tidal current. The significant difference of along-estuary SSC distribution indicates that the SSC is reduced gradually from the west to the east, and that in the spring tide is obviously higher than in the neap tide. The methods of mechanism analysis and equal-area grids were used to calculate the suspended sediment fluxes at the typical cross sections. It was found that 44 percent of total suspended sediments from the changjiang River were deposited in the submarine delta, and more than 27 percent of sediments were transported southernly into the Hangzhou Bay, and only 9 percent of sediments was supplied and exchanged with the northern Jiangsu waters, and about 20 percent of sediments was delivered offshore to the sea.

关键词： changjiang Estuary offshore waters suspended sediment distribution flux

Energy Management and Capacity Optimization of Photovoltaic, Energy Storage System, Flexible Building Power System co.sidering co.bined Benefit

在线全文

学校读者我要写书评

暂无评论

Energy engineering 2023年第2期120卷 541-559页

作者： Chang Liu Bo Luo Wei Wang Hongyuan Gao Zhixun Wang Hongfa Ding Mengqi Yu Yongquan Peng changjiang Institute of Survey PlanningDesign and ResearchWuhan430010China State Grid Hubei Eco.omic Research Institute Wuhan430071China Huazhong University of Science and Technology Wuhan430074China Guangdong Power Grid co.p.Foshan Power Supply Bureau Foshan528000China China Power co.struction engineering consulting Central Southern co. Ltd.Wuhan430071China

Building structures themselves are one of the key areas of urban energy co.sumption,therefore,are a major source of greenhouse gas *** this understood,the carbon trading market is gradually expanding to the building sector to co.trol greenhouse gas ***,to balance the interests of the environment and the building users,this paper proposes an optimal operation scheme for the photovoltaic,energy storage system,and flexible building power system(PEFB),co.sidering the co.bined benefit of *** on the model of co.ventional photovoltaic(PV)and energy storage system(ESS),the mathematical optimization model of the system is proposed by taking the co.bined benefit of the building to the eco.omy,society,and environment as the optimization objective,taking the near-zero energy co.sumption and carbon emission limitation of the building as the main *** optimized operation strategy in this paper can give optimal results by making a trade-off between the users’co.ts and the co.bined benefits of the *** efficiency and effectiveness of the proposed methods are verified by simulated experiments.

关键词： Photovoltaic energy storage system energy management PEFB optimization operation

co.mentary of research situation and innovation frontier in hydro-structure engineering science

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2011年第4期54卷 767-780页

作者： WU ZhongRu PENG Yan LI ZhanChao LI Bo YU Hong ZHENG ShouRen State Key Laboratory of Hydrology-Water Resources and Hydraulic engineering Hohai UniversityNanjing 210098China co.lege of Water co.servancy and Hydropower engineering Hohai UniversityNanjing 210098China National engineering Research Center of Water Resources Efficient Utilization and engineering Safety Hohai UniversityNanjing 210098China changjiang Water Resource co.mission Wuhan 430071China

In order to utilize water and hydropower resources in China,multitudes of water projects are established or to be co.structed as an integral part of the national eco.omy's *** these circumstances,there are two outstanding problems:1) a mass of existing dams are in danger and 2) in the southwest water-co.servancy co.struction plan,dozens of existing or planned dams are high dams or even super high dams with heights between 200 and 300 *** acco.dance with demands of "the National Program for Medium-and Long-Term Scientific and Technological Development" on the innovation frontier in hydro-structure engineering science,various key problems in science and technology such like stress analysis,ultimate bearing capacity,nonlinearity *** high dams,super high dams and sick dams have been *** paper makes a co.mentary on the advances and results of the researches,then analyzes the advantages and disadvantages of current theoretics and methodologies,and finally presents co.responding research directions and the frontier of innovation.

关键词： hydro-structure engineering science research situation innovation frontier stress analysis ultimate bearing capacity nonlinearity co.mentary

Impact of the Three Gorges Dam on Regulation and Storage Capacity of Poyang Lake

在线全文

学校读者我要写书评

暂无评论

Journal of Landscape Research 2020年第6期12卷 50-55页

作者： CHEN Mofei FAN Shaoying DENG Jinyun WANG Xiaopeng changjiang Institute of Survey PlanningDesign and ResearchWuhanHubei 430010China Yellow River Hydropower Development co.poration JiyuanHenan 459017China State Key Laboratory of Water Resources and Hydropower engineering Science Wuhan UniversityWuhanHubei 430072China Yellow River engineering consulting co. Ltd.ZhengzhouHenan 450003China

The regulation and storage capacity of Poyang Lake is infl uenced by the fl ow from the main stream of the Yangtze River and the fi ve rivers in the Poyang Lake *** the operation of the Three Gorges Dam(TGD),hydrological changes in the main stream of the Yangtze River impact water exchange between the Yangtze River and Poyang *** on the analysis of measured data and factors infl uencing outfl ow at Hukou station,a new empirical formula describing outfl ow at Hukou station and critical water level for lake storage capacity is *** change in monthly storage capacity of Poyang Lake before and after the co.struction of the TGD is analyzed *** results show that the fl ows from the main stream of the Yangtze River and the fi ve rivers in the Poyang Lake basin affect outfl ow and water storage capacity by changing the water level difference between Xingzi and Hukou stations and by changing the water level at Hukou *** the Yangtze River and the fi ve rivers in the Poyang Lake basin differ in process and *** the water level at Hukou station remains co.sistent,when the fl ow from the fi ver rivers increases by 1,000 m3/s,the outfl ow at Hukou station increases by 304 m3/*** the fl ow from the main stream of the Yangtze River increases by 1,000 m3/s,the outfl ow at Hukou station decreases by 724 m3/*** addition,the operation of the TGD affects the water storage capacity of Poyang *** water volume of Poyang Lake decreases by 49.4%in September,but increases by 47.7%in May.

关键词： Stage–discharge relation Regulation and storage capacity of Poyang Lake Water exchange Three Gorges Dam

Mapping three-dimensional co.seismic surface deformations associated with the 2015 MW7.2 Murghab earthquake based on InSAR and characteristics of crustal strain

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Earth Sciences 2018年第10期61卷 1451-1466页

作者： Jie GAN Jun HU Zhiwei LI changjiang YANG Jihong LIU Qian SUN Wanji ZHENG School of Geosciences and Info-physics Central South UniversityChangsha 410083 China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University) Ministry of Education Changsha 410083 China Hunan Spatio Map Information Technology Limited co.pany Changsha 410082 China Central Southern China Electric Power Design Institute of China Power engineering consulting Group co.poration Wuhan 430060 China co.lege of Resources and Environmental Science Hunan Normal UniversityChangsha 410081 China

Three-dimensional(3 D) co.seismic surface deformations are of great importance to interpret the characteristics of co.eismic deformations and to understand the geometries and dynamics of seismogenic faults. In this paper, we propose a method for mapping 3 D co.seismic deformations based on InSAR observations and crustal strain characteristics. In addition, the search strategy of co.relation points is optimized by adaptive co.relation distance, which greatly improves the applicability of the proposed method in restoring deformations in deco.relation areas. Results of the simulation experiment reveal that the proposed method is superior to co.ventional methods in both the accuracy and co.pleteness. The proposed method is then applied to map the 3 D co.seismic surface deformations associated with the 2015 MW7.2 Murghab earthquake using ascending and descending ALOS-2 PALSAR-2 images. The results show that the seismogenic fault is the Sarez-Karakul fault(SKF), which is dominated by NE-SW strike slips with an almost vertical dip angle. The north section and the south segment near the epicentre have obvious subsidence along with a southwestward motion in the northwest wall, and the southeast wall has northeast movement and surface uplift trend along the fault zone. The strain field of the earthquake is also obtained by the proposed method. It is found that the crustal block of the seismic area is obviously affected by dilatation and shear forces, which is in good agreement with the movement character of the sinistral slip.

关键词： InSAR Characteristics of crustal strain Three-dimensional co.seismic deformations Murghab earthquake,ALOS-2