Results 41 to 50 of about 14,115 (167)
Fundamental performance bounds for multi-performance criteria in wireless ad hoc networks [PDF]
In wireless ad hoc networks,the fundamental performance bounds could provide insight to improve network routing or resource allocation protocol as well as an upper bound against which to compare the performance of existing protocols.This work addresses ...
Bin DA +6 more
core +1 more source
Strengthening community‐based fisheries monitoring programs with Indigenous perspectives
Abstract Community‐based monitoring (CBM) programs are increasingly recognized as essential for adaptive environmental stewardship. Yet, the CBM literature often highlights successful cases and privileges evaluations by external experts over those of community members themselves.
Kanwaljeet Dewan +2 more
wiley +1 more source
高频直流变压器(high-frequency DC transformer,HDCT)是直流电网的关键设备。为了满足中高压直流电网母线互联、电压变换、功率双向传输和电气隔离的需求,两端皆为模块化多电平变换器(modular multilevel converter,MMC)结构的模块化多电平高频直流变压器(modular multilevel DC transformer,M2DCT)尤受关注。目前,移相控制是提高M2DCT性能的有效方法之一,而现有的移相控制方法主要优化M2DCT的单一特性。因此 ...
张焕青, 张慕婕, 王裕, 唐阳
doaj
Informing spatial conservation prioritization with species’ traits
Abstract New Guinea, the most botanically diverse island on the planet, is the location for one of the boldest conservation initiatives. The Manokwari Declaration aims to achieve 70% conservation designation for the Bird's Head Peninsula. This is 40% higher than the 2022 Global Biodiversity Framework target.
Liam A. Trethowan +27 more
wiley +1 more source
Growing Demand and Uneven Supply: Eight Years of Nature Education in China 需求增长与供给不均:中国自然教育八年发展回顾
ABSTRACT This study examines the role of nature education in advancing conservation and sustainability in China between 2014 and 2023. Drawing on national survey reports and historical–comparative methods, it analyses the dynamics of public demand, institutional supply, and practitioner capacity.
Qi Yunxi, Lyu Xiang, Huang Yu
wiley +1 more source
微电网的研究及发展归根结底是为了应对目前能源、资源紧张,环境污染等一系列问题,因此微电网不仅要满足基本供电需求,还应提高其经济性与环保性。文中主要通过建立分布式电源模型及多目标优化模型对微电网内的分布式电源进行优化调度,根据对微电网的具体要求运用遗传算法进行优化计算,进行最优化配置。算例结果通过24 h内不同优化的结果进行对比,得到最优配置,验证了模型在微电网多目标优化方面的有效性,从而达到对微电网整体性最优化。
赵磊, 曾芬钰, 王霜, 杨宝泉
doaj
Design and Implementation of Gifts Warehouse Management System for a Mobile Corporation [PDF]
近年来,为更好的拓展移动业务,各移动公司在办卡、开通宽带及其他各种活动中均需提供手机、路由器、日用品等礼品。如何对各网点的赠品种类、数量进行统计汇总,以便在各网点间流转是一大难题。传统的手工登账、通过电话查询库存工作量非常大而且不准确。仓储管理是许多企事业单位必须的,仓储管理系统包括对库存材料的统计、查询、更新、修改等功能,以此代替传统的手工操作,可以提高工作效率、使人们从繁重的劳动中解脱出来。为更好地开展工作,我们为宜春市移动公司开发了宜春市移动公司仓储管理系统,系统服务器部署在地市级移动公司 ...
丁一华
core
Multi-Objective Optimization Task Offloading Strategy Based on Load Prediction [PDF]
With the upgrading of intelligent connected vehicles in the Internet of Vehicles(IoV), new on-board applications introduce higher requirements for computing power.The computing power of on-board units is far from sufficient.
Shiming PENG, Shiyang LIN, Shuo JIA, Miaohui YANG
core +1 more source
A Multifunctional Reducing Molecular Dopant for 16% Efficient Tin Perovskite Solar Cells
ABSTRACT Although lead‐based photovoltaics have seen remarkable progress, tin‐based perovskite solar cells (Sn‐PSCs) continue to face challenges due to their limited power conversion efficiency and insufficient operational stability. The primary cause of this performance gap is the susceptibility of Sn2+ to oxidation, which promotes rapid defect ...
Xianyong Zhou +12 more
wiley +1 more source
将基于实数编码的加速遗传算法 (RAGA)与多目标规划相结合 ,解决了多目标规划中多维参数寻优问题 ,避免了逐步法 (STEM)早熟、提前收敛以及易陷入局部最优等弊端。在建立松嫩平原兴隆小流域水土保持多目标综合优化模型中得以应用 ,取得了满意效果 ...
付强 周江红 金菊良 王立坤 门宝辉
doaj

