نتایج جستجو برای: gorges
تعداد نتایج: 1158 فیلتر نتایج به سال:
*Correspondence: [email protected] 1School of Mathematics and Statistics, Chongqing Three Gorges University, Chongqing, 404000, P.R. China 2College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan, 411105, P.R. China Full list of author information is available at the end of the article Abstract In this paper, we study the mixed finite element methods for general convex optima...
The domestic cat (Felis catus) is an invasive exotic in many locations around the world and is thought to be a key factor driving recent mammal declines across northern Australia. Many mammal species native to this region now persist only in areas with high topographic complexity, provided by features such as gorges or escarpments. Do mammals persist in these habitats because cats occupy them l...
To solve computationally intensive and technically complex control of nonpoint source pollution, the traditional genetic algorithm was modified into an auto-adaptive pattern, and a new framework was proposed by integrating this new algorithm with a watershed model and an economic module. Although conceptually simple and comprehensive, the proposed algorithm would search automatically for those ...
OBJECTIVE To define and evaluate the malaria transmission potential in the Yangtze River, following construction of the Three Gorges Reservoir. METHODS Six villages, namely, Kaixian, Fengjie, Wanzhou, Fuling, Yubei, and Zigui were selected for investigating the malaria transmission potential in the reservoir. Transmission potential was estimated by mathematical modeling and evaluation of the ...
In this paper we report the results of two analyses carried out by the Topographic Measurement Team (Project ID 5297) within the European Space Agency (ESA) and National Research Center of China (NRSCC) Dragon 2 cooperation program. In the first analysis, the DEM of a small area in the Tibetian Plateau has been estimated processing 11 L-band ALOS images with the QuasiPermanent Scatterers (QPS) ...
The development of toxicity to the fluoride ion (F) may be complex and multifactorial with a number of pathophysiological pathways being possible, with the potential for interactions between toxins involving additivity, synergism, and antagonism, and with a number of other factors having predisposing and protective effects. In addition to cognitive impairment with a reduced intelligence quotien...
The Himalayan mountains are dissected by some of the deepest and most impressive gorges on Earth. Constraining the interplay between river incision and rock uplift is important for understanding tectonic deformation in this region. We report here the discovery of a deeply incised canyon of the Yarlung Tsangpo River, at the eastern end of the Himalaya, which is now buried under more than 500 met...
In this study, we examined possible impacts of the Yangtze River Three Gorges Dam (TGD), the world largest hydroelectric construction, on the adjacent marine ecosystem of the East China Sea (ECS) during its initial water storage period. The TGD filled the first one-third of its storage capacity of 39 billion m3 in 10 days in June 2003, causing an abrupt reduction in the river flow into the ECS....
High dimensionality in real-world multi-reservoir systems greatly hinders the application and popularity of evolutionary algorithms, especially for systems with heterogeneous units. An efficient hierarchical optimization framework is presented for search space reduction, determining the best water distributions, not only between cascade reservoirs, but also among different types of hydropower u...
While engineers have been quantifying rainfall-runoff processes since the mid-19th century, it is only in the last decade that artificial neural network models have been applied to the same task. This paper evaluates two neural networks in this context: the popular multilayer perceptron (MLP), and the radial basis function network (RBF). Using six-hourly rainfall-runoff data for the River Yangt...
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