Results 121 to 130 of about 192 (161)

雅鲁藏布江流域生态系统服务评估及其权衡/协同关系

Shuitu Baochi Xuebao
目的探究雅鲁藏布江流域生态系统服务随海拔梯度的时空变化特征及权衡/协同关系，协调区域经济发展与生态保护，推动区域可持续发展。方法采用InVEST模型对2000—2020年流域内生境质量、产水、土壤保持、固碳和粮食供给5种生态系统服务进行时空变化评估和不同海拔梯度量化分析，并结合Spearman相关性分析和地理加权分析揭示生态系统服务权衡/协同关系变化。结果1）2000—2020年，生态系统服务供给量高值区主要分布在雅鲁藏布江流域下游地区，生境质量普遍维持在0.80左右，碳储量显著增加。土壤保持量上升12.
石晓蕊, 信忠保
doaj  

QFII概念股投资价值多维度评价的实证分析基于一种改进的熵权法 An Empirical Analysis of Multi Dimensional Evaluation of QFII Stock Investment Value Based on an Improved Entropy Method

, 2017
高峰
semanticscholar   +1 more source

Reassessing potential economic value and health impact of effective Shigella vaccines. [PDF]

Bull World Health Organ
Hausdorff WP, Anderson JD, Bourgeois AL, Clifford A, Fleming JA, Muhib F, Pecenka C, Puett C, Riddle MS, Scheele S, Bagamian KH.   +10 more
europepmc   +1 more source

基于岭回归的证券指数的预测分析—以上证综合指数为例 Forecast Analysis of Securities Index Based on Ridge Regression—In Case of Shanghai Composite Index

, 2016
吴仍康
semanticscholar   +1 more source

Buurtzorg nederland: a global model of social innovation, change, and whole-systems healing. [PDF]

Glob Adv Health Med, 2015
Kreitzer MJ, Monsen KA, Nandram S, de Blok J.   +3 more
europepmc   +1 more source

The Evolution and Enlightenment in Diversification of English and American Primary and Secondary School System Reform

, 2016
皆笑 朱
semanticscholar   +1 more source

Time series analysis of the impact of tobacco control policies on smoking prevalence among Australian adults, 2001-2011. [PDF]

Bull World Health Organ, 2014
Wakefield MA, Coomber K, Durkin SJ, Scollo M, Bayly M, Spittal MJ, Simpson JA, Hill D.   +7 more
europepmc   +1 more source

Study on Benchmark Yield in Wind Power Industry Based on the CAPM and OJ Model

, 2016
张 福伟
semanticscholar   +1 more source

The functional roles of feedback projections in the visual system. [PDF]

Neurosci Bull, 2010
Shou TD.
europepmc   +1 more source

沪港通对上海证券市场的影响分析 Analysis on the Influence of Shanghai-Hong Kong Stock Connect to Shanghai Stock Market

, 2015
王宝华, 钱伟民
semanticscholar   +1 more source