Results 21 to 30 of about 538 (128)
Construction Experiment and Mechanical Modeling of Soil-Concrete Composite Slope Protection Technology [PDF]
, 2023 [Objective] The construction and mechanical model of soil-concrete composite slope protection technology were analyzed in order to provide scientific reference for the implementation of slope modification engineering in soil-rock mountain area. [Methods]
Gao Zhaoliang +5 more
core +1 more source
Influence Mechanism of Ionic Interface Reaction on Soil Porosity [PDF]
, 2023 [Objective] The changes in surface charge properties of soil particles and the net force between particles were analyzed, in order to elucidate the influence mechanism of particle interaction on pore conditions.
Ding Wuquan +3 more
core +1 more source
Journal of Spectroscopy, Volume 2018, Issue 1, 2018., 2018 Quantifying the decomposition of soil organic carbon (SOC) fractions under climate change is essential to predict carbon‐climate feedbacks. The accuracy and utility of a combustion module coupled with cavity ring‐down spectroscopy (CM‐CRDS) system were assessed for simultaneously determining SOC and δ13C‐SOC. Using a range of standard materials as well
Dan Liu +3 more
wiley +1 more source
Stabilization and Synchronization of Memristive Chaotic Circuits by Impulsive Control
Complexity, Volume 2017, Issue 1, 2017., 2017 The purpose of this note is to study impulsive control and synchronization of memristor based chaotic circuits shown by Muthuswamy. We first establish a less conservative sufficient condition for the stability of memristor based chaotic circuits. After that, we discuss the effect of errors on stability.
Limin Zou +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 从社会经济、自然地理等角度对比太湖流域与三峡库区的状况,探讨三峡水库在正式建成后库区非点源污染发生的可能性。研究表明:太湖流域与三峡库区在农业生产环境及农业非点源污染发生条件等方面有相似之处,同时,三峡库区非点源污染物(如泥沙和营养物)的来源也比较丰富,因此可以推断三峡库区存在发生非点源污染的可能。
余炜敏 魏朝富 谢德体
doaj +2 more sources
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
Shuitu Baochi Xuebao, 2004 护岸林是三峡水库能否长久运行的一项重要保障措施，对三峡库区涪陵段撑绿竹护岸林进行了详尽调查，并对其根系土壤作了详细分析，结果表明：三峡库区涪陵段撑绿竹护岸林有好的保持水土效益；撑绿竹护岸林的栽植密度达900丛／hm^2，林下枯落物厚度在2．5cm以上时生态效益最佳。
王晶 丁德蓉 何丙辉 许红艳 彭华
doaj +2 more sources
The Spatio-temporal Evolution of NDVI in the Three Gorges Reservoir Area Driven by the Synergistic Effect of two Factors over the Past 21 Years [PDF]
[Objective] To clarify the spatio-temporal characteristics of vegetation evolution in the Three Gorges Reservoir Area, and to quantitatively analyze the relationships between vegetation and key determinants, including climate, terrain, and human ...
LI Cheng +5 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
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