Results 21 to 30 of about 1,135,811 (161)
Balancing making a difference with making a living in the conservation sector
Conservation Biology, Volume 36, Issue 3, June 2022., 2022 Abstract Goals play important roles in people's lives because they focus attention, mobilize effort, and sustain motivation. Understanding conservationists’ satisfaction with goal progress may provide insights into real‐world environmental trends and flag risks to their well‐being and motivation.
Thomas Pienkowski +10 more
wiley +1 more source
全球能源互联网, 2021 并网型微电网的混合储能容量配置方法一般仅考虑其经济性，难以解决微电网联络线功率波动问题，会对电网产生不利影响。为了权衡混合储能的经济性与联络线功率波动平抑效果，提出了基于非合作博弈的混合储能容量优化配置方法。首先，以混合储能和联络线作为参与者，建立非合作博弈模型；其次，引入入侵杂草算法中繁殖机制和变异算子改进遗传算法，并求解模型；最后，对传统多目标优化模型、单目标优化模型和非合作博弈模型的优化结果以及传统、改进遗传算法的求解结果进行对比。结果表明：参与者进行博弈时可独立且客观优化目标函数 ...
孙海霞 +4 more
doaj +1 more source
Biodiversity Soup II: A bulk‐sample metabarcoding pipeline emphasizing error reduction
Methods in Ecology and Evolution, Volume 12, Issue 7, Page 1252-1264, July 2021., 2021 Abstract Despite widespread recognition of its great promise to aid decision‐making in environmental management, the applied use of metabarcoding requires improvements to reduce the multiple errors that arise during PCR amplification, sequencing and library generation.
Chunyan Yang +7 more
wiley +1 more source
Gaoya dianqi, 2022 文中针对国网公司通用设计方案中220 kV HGIS配电装置占地大、构架设置复杂及进出线型式单一等缺点展开模块化设备选型和布置方案优化研究。文中提出进出线双间隔母线侧“共用套管”和分段—母联公用间隔“共用套管”两种模块化设备，阐述其接线原理、布置方案和不停电检修扩建方案。借助三维设计手段开展配电装置场地优化，通过安全净距校验将双间隔宽度由25 m优化至24.5 m，母线构架宽度由26 m优化至24.5 m，结合吊装模拟验证模块化设备运输方案并优化道路布置。优化后220 ...
周亚龙, 熊静, 陈斌, 王椿丰
doaj
Decision‐support tools for dynamic management
Conservation Biology, Volume 34, Issue 3, Page 589-599, June 2020., 2020 Abstract Spatial management is a valuable strategy to advance regional goals for nature conservation, economic development, and human health. One challenge of spatial management is navigating the prioritization of multiple features. This challenge becomes more pronounced in dynamic management scenarios, in which boundaries are flexible in space and ...
Heather Welch +4 more
wiley +1 more source
智能科学与技术学报, 2022 针对含分布式电源（DG）的配电网动态重构问题，提出考虑配电网负荷需求与 DG 出力动态变化的配电网动态重构方案。首先，基于不同时段的负荷特性与最优网络结构的综合相似性，提出了一种改进层次聚类的时段划分方法。在此基础上，提出了遗传学习自适应粒子群优化算法，实现以网络损耗最小为优化目标的动态重构优化计算。针对基本粒子群算法中缺乏速度动态调节、易陷入局部最优等问题，提出基于粒子个体最优位置的遗传学习方案增加搜索多样性，提高算法的全局搜索能力，并引入自适应惯性权值和加速系数以满足不同时期的寻优要求。最后 ...
王云 +4 more
doaj +1 more source
考虑光储联合系统参与频率响应的储能容量优化配置方法 [PDF]
全球能源互联网, 2018 随着能源危机和环境污染问题的加剧，光伏发电作为可持续的清洁能源受到越来越多的关注，储能在含光伏电力系统中的应用也日益广泛。然而，储能的大规模应用却面临成本高难以推广、收益衡量困难等瓶颈。基于此，考虑光伏-储能联合系统参与系统频率响应后的经济效益，研究光伏电站配置储能的经济性。对储能系统的潜在收益和其应用于电力市场辅助服务的可能性进行讨论，提出一种储能容量优化配置的方法。结果表明，配置储能并参与系统频率响应调整辅助服务能调高光伏电站的总收益。另外，对储能容量优化配置过程中敏感因素的影响进行了分析 ...
金楚, 周博, 艾小猛, 文劲宇
doaj +1 more source
全球能源互联网, 2018 在城市高可靠性供电方式下，城市重要用户专门配置的应急电源利用率低下，资源浪费严重。随着未来电网的发展，分布式电源在城市日趋普及，将其兼做应急电源是解决传统应急电源闲置问题、进一步发挥分布式电源作用的有益尝试。提出了一种计及分布式电源的城市重要用户应急电源优化配置方法，以城市分布式电源的类型与特点确定其应急工作方式，利用多人决策AHP方法量化用户重要性，然后基于区域电网结构，以等效重要负荷最大为最优目标，以有功功率平衡为约束，通过遗传算法求解来划分应急孤岛 ...
刘飞, 汤亮亮, 邓鹤鸣, 伍俊
doaj +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT With excellent castability and dimensional stability, Zn alloys are widely used in the automotive and electronic industries. However, the inherent trade‐off between strength and ductility remains a key bottleneck limiting their application in high‐performance fields.
Jianxing Zhou +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Atomically dispersed iron–nitrogen–carbon (Fe‐N‐C) catalysts have emerged as promising alternatives for oxygen reduction reaction (ORR) owing to their highly atomic utilization. However, maintaining both Fe atomic dispersion and dense Fe‐Nx sites (typically below 2 wt%) in Fe‐N‐C catalysts is still a key challenge.
Lijuan Wang +6 more
wiley +1 more source