Results 21 to 30 of about 631 (110)

Characteristics of groundwater circulation in typical karst trough areas:A case study of Longtan trough valley in Youyang, Chongqing [PDF]

open access: yes
Although the southwest karst valley region of China has an abundance of groundwater resources, little is known about the variations in the karst trough valley’s groundwater types and their cycle features. Using the Chongqing Youyang Longtan trough valley
Lian LI   +4 more
core   +1 more source

Ionic‐Liquid‐Assisted Synthesis of NiTe/CoTe Heterostructure With Te Vacancies in N, P, and F Co‐Doped Hollow Carbon Nanorods for Efficient Alkaline Hydrogen Evolution and High‐Performance Flexible Supercapacitors

open access: yesRare Metals, EarlyView.
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi   +7 more
wiley   +1 more source

基于海绵城市的历史文化街区水安全体系构建——以厦门市鼓浪屿为例 [PDF]

open access: yes, 2016
历史文化街区同现状多数老旧城区一样面临城市内涝安全问题,因此需要在保护历史文化街区的认知下,寻求一种有效解决现存的水安全问题的对策。通过分析梳理鼓浪屿的城市肌理、街巷空间及风貌建筑等历史文化街区的特性,结合鼓浪屿特有的城市地理环境,建立鼓浪屿全岛的排水模型,对常规雨水及超常规内涝防治系统进行评估提升,提出街区最优的改造策略 ...
吴连丰, 李渊, 沈晓铃, 王泽阳
core  

The Relationship Between Socioeconomic Status and Productivity of Female Garment Workers of Bangladesh: Mediating Role of Job Satisfaction and Job Engagement

open access: yesSexuality, Gender &Policy, Volume 9, Issue 1, February 2026.
ABSTRACT The purpose of this study is to determine the relationship between productivity and socioeconomic characteristics, as well as the degree to which job satisfaction and engagement can strengthen or moderate this association. With a focus on the mediating roles of job satisfaction and job engagement, this study examines the complex relationship ...
Abdullah Al Masud   +6 more
wiley   +1 more source

黄土区空闲坡耕地地表径流产沙近似解析模型

open access: yesShuitu Baochi Xuebao, 2020
准确地预测农田地表径流是实现农业面源污染控制的基础,根据降雨和地表径流的运动特征,耦合Green-Ampt模型累积入渗量显函数、运动波模型和稳态的产沙模型,建立了降雨条件下的坡面产流产沙近似解析模型。该模型通过线性表示入渗率和水深之间的关系近似求解了运动波方程,通过设置30~90 mm/h的5种不同雨强的模拟降雨试验,推求模型参数并验证模型精度,并对模型参数进行敏感性分析。结果表明:(1)径流和泥沙的模型计算值与实测值吻合较好,且模型更适合于模拟60 mm/h雨强下的产流产沙过程,曼宁糙率系数均分布在0.
邵凡凡, 吴军虎
doaj  

Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]

open access: yes
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian   +4 more
core   +1 more source

Integrating Urban Expansion and Flood Risk: A Spatial Assessment of Impervious Surface Growth and Floodplain Exposure in Mecklenburg County (2011–2021)

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley   +1 more source

Hollow Porous Nitrogen‐Doped Carbon‐Confined FeP/Fe2P Nanoparticle‐Armored Catalyst for Efficient Oxygen Reduction Reaction in Aqueous/Flexible Zinc‐Air Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang   +8 more
wiley   +1 more source

北盘江流域降雨,径流,产沙相互关系研究

open access: yesShuitu Baochi Xuebao, 1994
根据北盘江流域5个文站降雨,径流和悬移质输沙模数资料,采用线性函数和幂函数拟合降雨和径流,降雨和悬移质输沙模数、径流和悬移质输沙模数的相互关系,根据剩余标准差最小原则确定最优关系,并探讨了一个流域内单一雨量站资料和径流,悬移质输沙模数的关系。结果表明,流域平均降雨量与径流,悬移质输沙模数、径流与悬移质输沙模数之间存在较好相关关系,根据剩余标准差大小,确定用线性函数或幂函数表达 ...
安和平
doaj  

The Policy Entrepreneur as a Crosscutting Concept in Theories of the Policy Process: A Scoping Review of European Empirical Applications

open access: yesEuropean Policy Analysis, Volume 11, Issue 2, Page 191-206, Spring 2025.
ABSTRACT In this article, we examine concepts that underpin the theories of the policy process. We exemplify the applicability of these concepts in the European policy‐making contexts through a systematic scoping review of European applications of the policy entrepreneur.
Evangelia Petridou   +2 more
wiley   +1 more source

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