Nonlinear Elasticity of Borocarbide Superconductor YNi2B2C: A First‐Principles Study
Advances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017 First‐principles calculations combined with homogeneous deformation methods are used to investigate the second‐ and third‐order elastic constants of YNi2B2C with tetragonal structure. The predicted lattice constants and second‐order elastic constants of YNi2B2C agree well with the available data.
Lili Liu +6 more
wiley +1 more source
Bank collapse-landslide failure mechanism of typical reverse rock bank slope in Three Gorges Reservoir area [PDF]
At present, most of the reverse rock slope toppling instability failure is interpreted as a progressive overall instability failure controlled by dip angle and structural plane. However, the phenomenon of leading edge collapse is common in some reservoir
Bolin HUANG +4 more
core +1 more source
Shuitu Baochi Xuebao, 2004 三峡工程建成蓄水后,受淹耕地将遭到江水浸泡,积蓄在耕地上的有机污染物、N、P以及Cu、Cr等微量重金属将通过溶解、交换、扩散而迁移到江水中,增加江水中相应成份的含量。在调查了解三峡库区受淹土壤数量、类型的基础上,选择采集具有代表性的8个耕作土壤作样本,在实验的条件下模拟江水浸泡,求取单位重量的土壤在固—液相平衡状态下释放污染物的负荷量,进而计算三峡库区受淹土壤在江水浸没处于平衡时污染物释放进入水中污染物的量。结果表明,三峡水库受淹耕地污染物释放总量为181540.9t,其中以CODcr,BCOD5为主 ...
杨钢
doaj +2 more sources
Heavy metal pollution in rural soil and ecological risk in Wanzhou District, Chongqing [PDF]
ObjectiveTo analyze and assess the pollution levels of lead (Pb), cadmium (Cd), and chromium (Cr) in rural soils of Wanzhou District, Chongqing Municipality, and to provide data support for proposing relevant measures and suggestions.MethodsBased on the ...
CHENG Longfeng +6 more
core +1 more source
Temporal and spatial distribution of phosphorus in the Xiangxi River [PDF]
, 2006 The phosphorus in water and sediment collected at different time from the Xiangxi River were analyzed. The results indicated that the phosphorus pollution have significant relations to human activities (especially the phosphorus industry).
Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China +5 more
core
, 2011 戏剧类非物质文化遗产作为库区各民族传统文化的结晶与民族的灵魂,具有独特的艺术魅力,它对促进库区人与人、人与社会、人与自然的和谐具有不可替代的作用,它作为库区社会主义和谐文化艺术建设中一个不可或缺的活跃部分,在库区社会主义经济、文化艺术、政治建设的重要性已经被全社会所重视。因此,本文针对三峡库区民间非物质文化戏剧遗产保护现状,以及如何保护和开发好库区戏剧类非物质文化遗产,使它在促进库区社会和谐 ...
吴亚芳, 熊尚全, 罗钰坊
core
Application of different machine learning models in landslide susceptibility assessment in Badong County, Hubei Province [PDF]
China is one of the countries most frequently affected by landslide disasters in the world, making landslide susceptibility assessment crucial for effective disaster prevention and mitigation.
Guozhen CHEN +6 more
core +1 more source
Preliminary analysis on characteristics of water and sediment movement and environmental disasters changes in the Three Gorges reservoir area [PDF]
, 2009 三峡水库自2003年蓄水以来,积累了大量实际观测资料,为研究库区水沙运动特性及环境问题提供了有利条件.本文基于水库实际运用情况,对水库蓄水后的洪水波传播、悬移质泥沙运动、库区富营养化以及库岸滑坡灾害等的主要变化进行了初步分析,表明三峡水库蓄水运用后,这些方面发生了较大的改变,并呈现出新的特点,对三峡工程的长期运行有一定影响,其中反映的重要问题值得深入研究,并在今后的工程运用中应给予足够的重视 ...
刘青泉, 尹小玲
core
Characteristics of Land Use Change and Evaluation of Ecological Sensitivity in Chongqing [PDF]
[Objective] Chongqing, as the economic center of the upper reaches of the Yangtze River in China and a barrier to ensure ecological security in the middle and lower reaches of the Yangtze River, is a typical ecological functional and fragile area in ...
GOU Qiantao, WU Han, XIE Xianjian
core +1 more source
Effects of Continuous Straw Returning Combined with Reduced Fertilizer Application on Rice Yield and Loss of Nitrogen and Phosphorus [PDF]
, 2022 [Objective] The effects of straw returning combined with reduced chemical fertilizer application on rice yield and nitrogen and phosphorus losses with runoff were studied in order to provide a scientific basis for the recycling and reuse of local ...
Liang Fan +8 more
core +1 more source