Results 171 to 180 of about 5,617 (202)

Study on the Source and Microbial Mechanisms Influencing Heavy Metals and Nutrients in a Subtropical Deep-Water Reservoir. [PDF]

Microorganisms
Cui G, Cui J, Zhang M, Zhang B, Huang Y, Wang Y, Feng W, Zhou J, Liu Y, Li T.   +9 more
europepmc   +1 more source

Rivalry and Competition in Central Asia [PDF]

Martha Brill Olcott
core  

Some of the next articles are maybe not open access.

Related searches:

Optimal regulation control system for cascade hydropower stations

2009 International Conference on Sustainable Power Generation and Supply, 2009
A complex optimal regulation control system with three-layer structure is developed for cascade hydropower stations, including from top to bottom optimal regulation control layer, automatic water regime measuring and generation supervisor layer, economical dispatching control and automatic generation control layer.
null Rui Jun, null Chen Shou-lun
openaire   +1 more source

Research of Compensating Weights of Cascade Hydropower Stations

Applied Mechanics and Materials, 2012
The compensation benefits distribution weights model of cascade hydropower stations has been proposed. The method of compensation weights calculation has been discussed. The subjective weights in the station indexes are calculated by analytic hierarchy process and the objective weights by variance coefficient and the combination weights by Topsis.
Gan Yi Wang, Xiang Lin Wu, Hong Sheng Song   +2 more
openaire   +1 more source

Evaluation on operation management of cascade hydropower stations

2011 IEEE International Conference on Industrial Engineering and Engineering Management, 2011
An evaluation framework for joint operation of cascade hydropower stations was developed in this study. This framework is helpful to evaluate the operation performance of the cascade hydropower stations in order to improve the operation level. The power benefit of the cascade hydropower stations is chosen to be the evaluation object for multipurpose ...
Y. Zheng, X. D. Fu, J. H. Wei, X. Li
openaire   +1 more source

Optimal Sequencing of Development for Hydropower Stations in Cascade

Journal of Water Resources Planning and Management, 1989
The sequencing problem for hydropower station development is a multi-dimensional problem involving space-time decisions. In this paper, a mathematical model that uses a combination of dynamic programming and mixed-integer programming is developed, and an efficient algorithm for its use in optimal sequencing problems is presented.
Yonghua Wan, Shiyun Huang, Miguel A. Marino   +2 more
openaire   +1 more source

Cumulative effects of cascade hydropower stations on total dissolved gas supersaturation

Environmental Science and Pollution Research, 2018
Elevated levels of total dissolved gas (TDG) may occur downstream of dams during the spill process. These high levels would increase the incidence of gas bubble disease in fish and cause severe environmental impacts. With increasing numbers of cascade hydropower stations being built or planned, the cumulative effects of TDG supersaturation are becoming
Qian, Ma, Ran, Li, Jingjie, Feng, Jingying, Lu, Qin, Zhou   +4 more
openaire   +2 more sources

Regulation capability of small cascade hydropower stations for photovoltaic generation

Journal of Renewable and Sustainable Energy, 2020
The stochasticity of photovoltaic (PV) generation output makes it necessary to smooth the output using other flexible power sources to realize the scale development of PV power. Small cascade hydropower stations (SCHSs) are also widely distributed in space, like PV generation.
Yanmei Zhu, Shijun Chen, Guangwen Ma, Weibin Huang, Xiaoyan Han, Lijie Ding   +5 more
openaire   +1 more source

Complementary operation of a small cascade hydropower station group and photovoltaic power stations

Clean Technologies and Environmental Policy, 2020
Complementation with hydropower is an important solution to solve the problems of grid connection and consumption of photovoltaic generation. Considering the randomicity of photovoltaic output and runoff, hydropower station with good regulation capability is often used as a complementary power source of photovoltaic generation.
Yanmei Zhu, Shijun Chen, Guangwen Ma, Weibin Huang, Xiaoyan Han, Lijie Ding   +5 more
openaire   +1 more source

Cascade hydropower station risk operation under the condition of inflow uncertainty

Energy, 2022
Abstract Runoff is an important basis for the operation of hydropower. However, due to inflow uncertainty, the ideal practical operation process usually doesn't match with the plan, which exacerbates the power generation and ecological risks. Therefore, the purpose of this paper is to investigate the relationship between hydropower generation ...
Kaixuan Lei, Jianxia Chang, Ruihao Long, Yimin Wang, Hongxue Zhang   +4 more
openaire   +1 more source