Results 41 to 50 of about 11,187 (168)
China's Green Economic Growth and the Corresponding Energy Transformation [PDF]
, 2016 资源耗竭和环境污染已经成为中国可持续发展的严重制约，特别是雾霾等环境问题的大面积集中爆发，更是将这一问题摆在了公众和政府的面前。但是，对于中国这样的发展中大国，“发展是第一要务”，因为解决十三亿人口的吃饭和就业问题都离不开经济较快增长。如何在稳增长、资源节约、环境友好这三者之间的权衡取舍是政府面临的难题。因此，对于中国社会经济的可持续发展，关键是在兼顾经济增长的同时尽可能实现资源节约和环境改善。这就需要实现绿色经济增长的转型。 另一方面，气候目标成为中国经济发展的约束条件 ...
李江龙
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT Collaborative writing has attracted increasing attention in English as a Foreign Language (EFL) instruction due to its potential to enhance learners’ writing competence. However, few studies have examined the comparative effects of collaborative versus independent writing on EFL learners’ individual performance, especially in higher‐order ...
Ting Huang, Chenze Wu, Wenkang Zhang
wiley +1 more source
Research on optimal two element exchange algorithm for large scale cloud computing server scheduling problem [PDF]
, 2019 With the flourishing of cloud computing industry,the rational management and scientific scheduling of cloud computing servers has become an important issue.In terms of model,a new mixed integer programming (MIP) model with affinity constraints and anti ...
Guoqi CHEN +5 more
core +1 more source
, 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
core +1 more source
Issue Attention in Public Opinion Polls: Pollsters as Agenda Responders and Agenda Setters
Policy Studies Journal, EarlyView.ABSTRACT Polling organizations, like other policy actors, must prioritize certain issues. We argue that, for normative and financial reasons, pollsters prioritize issues that are viewed as important by other institutions and the public, leading them to focus survey questions on issues that are on congressional and media agendas, and which are public ...
Qian Zhang +2 more
wiley +1 more source
Design and Implementation of Schedule Management System Based on ASP.NET [PDF]
, 2015 随着社会经济的不断发展，生活节奏的加快，机关事业单位的管理日趋精细化，管理逐渐优化不断走向快速办公。面对日益繁多的公共事务，如何加快单位内部的运作流程提高工作人员的办公效率，成为各机关事业单位办公自动化发展的一个重要的方向。随着现代管理模式和管理方法在机关事业单位的应用，使越来越多的机关事业单位管理者注意到需要提高办公效率就必须要采用现代、科学的管理工具和管理手段，在保证工作质量的基础上，实现高效率、增加协同办公能力、强化决策的一致性，最后实现快速办公，提高决策效能的目的。目前，办公自动化的实现和普及 ...
杨夏燕
core
Optimization and Scheduling of Integrated Energy Systems With Carbon Capture and Storage-Power to Gas Based on Information Gap Decision Theory [PDF]
ObjectivesThe main issue in the current rational optimization of integrated energy systems is to adopt technological means to improve energy conversion efficiency, reduce system energy waste and regional environmental pollution, in order to ...
BAO Geriletu, LI Xinxin, ZHAO Zhenyu
core +1 more source
Poverty &Public Policy, Volume 18, Issue 2, June 2026.ABSTRACT Rapid urbanisation and persistent socio‐economic inequality continue to entrench multidimensional poverty within South Africa's urban informal settlements, with women and female‐headed households experiencing disproportionate deprivation. This study analysed primary household survey data collected in 2023 from 322 households across three ...
Adrino Mazenda +3 more
wiley +1 more source
Study and Design of V2G system based on Grid-connected PV Power Generation [PDF]
, 2016 随着分布式可再生能源渗透率的不断提高，光伏等可再生能源接入电网的方式更加多样。同时近年来电动汽车飞速发展，解决充电问题已成为当务之急。在减少大规模充电对电网产生影响的同时，将电动汽车作为储能单元参与电网的调峰调频有利于电网的安全经济运行。本文研究基于光伏发电的V2G系统，旨在增加新能源消纳并促进电动汽车的清洁化和低碳化。系统的最大创新点在于实现了光伏发电并网、电动汽车充电与V2G服务的分时复用。 针对家庭单相并网选取了双向两级式的电路拓扑，不仅结构简单而且易于控制。对双向全桥电路和Buck ...
孙纯鹏
core
Sensing-then-transmission slot scheduling optimization for opportu-nistic spectrum access under the interference constraint of primary us-ers [PDF]
, 2013 A sensing-then-transmission slot scheduling scheme for opportunistic spectrum access under the interference constraint of primary users (PU) was proposed.First,the throughput of the cognitive radio system (CRS) with channel handoff mechanism and the ...
Fu-chun ZHENG +3 more
core +1 more source