Results 11 to 20 of about 397 (129)
Research Progress and Prospect Slope Greening in China [PDF]
, 2023 [Objective] The current status and hot trends of slope greening research were studied in order to provide theoretical support and references for subsequent research. [Methods] Professional bibliometric tools CiteSpace and VOSviewer were used to visualize
Guo Xiaoping +5 more
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, 2023 水电站跨省跨区送电涉及多省份、多品种、多时间尺度等多维度电量曲线分解，且需要考虑复杂的电网调峰等需求，是电站每月发电运行中亟待解决的重要难题。依托实际工程的生产需求，构建了适合跨省、跨区送电的水电站月度合同电量曲线分解模型，考虑保量保价、保量竞价、市场化三类品种电价差异，以及电网调峰、市场和电站运行复杂约束，提出了多省多品种发电收益总和最大的二次规划目标，并采用混合整数线性规划方法实现了模型高效求解。以溪洛渡右岸水电站为依托工程，通过枯期、汛期两个不同的应用场景进行了模型验证 ...
徐天遥 +6 more
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What effect has the 2015 power market reform had on power prices in China? Evidence from Guangdong and Zhejiang [PDF]
, 2020 This paper presents an analysis of the impact of the recent power market reform process in China – following the No.9 Document of March 2015 – on the industrial price of electricity.
Pollitt, M., Xie, B-C., Xu, J.
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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
Effects of Land Use Change on Spatio-temporal Evolution of Ecosystem Service Value Profit and Loss in Irtysh River Basin [PDF]
, 2022 [Objective] The correlation between land use changes and ecosystem service values were assessed to provide references for formulating appropriate land intervention policies. [Methods] The five-period land use data of the Irtysh River basin and the CLUE-S
Dai Lizheng +6 more
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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 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
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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 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
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