Results 21 to 30 of about 1,804,772 (149)
Gaoya dianqi, 2021 移动储能技术作为一种新型的灵活性资源,其在电力系统的防灾与应急支援等多种场景中发挥了非常重要作用。在此背景下,提出了基于模糊机会约束规划的储能应急车优化调度模型,以最大程度地恢复重要电力用户的供电并减少停电损失。首先,介绍了储能应急车的工作原理,提出了考虑负荷分级和行驶时间不确定性的储能应急车优化调度的模糊机会约束规划模型,该模型以最小化总停电损失为优化目标,实现对一级负荷的持续供电。然后,针对行驶时间的不确定性,采用模糊理论中的模糊参数表示行驶时间 ...
肖凯超 +5 more
doaj
Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Conservation Biology, EarlyView.Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
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Using the capabilities approach to achieve people‐centered conservation
Conservation Biology, EarlyView.Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues +4 more
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
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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
Gaoya dianqi, 2021 优化调度策略是有源配电网对分布式能源实施主动管理的核心技术,也是有源配电网安全经济运行的重要保障。文中以不同类型分布式电源的出力为控制变量,构建了突出电压质量提升和运行成本降低为目标的模糊化调度模型。引入均匀分布的初始和声库及变维数和声记忆库对基本和声搜索算法的改进用于调度模型的求解。通过IEEE33节点系统上的大量仿真测试和比较分析,验证了所建立的优化调度模型和改进算法的正确性和有效性。
段建东 +4 more
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Gongye shui chuli, 2014 以杭州市七格污水处理厂三期工程为例，尝试采用高压隔膜压滤机实现污泥深度脱水的可行性，并对污泥的化学调理方式进行了优化选择，对不同化学调理方式的成本、压滤机处理能力、污泥含水率、污泥绝干量等进行了综合评价。结果显示，采用无机和有机絮凝剂复合调理相比单一混凝剂的化学调理效果更优，可以使污泥含水率降至60%以下，同时污泥深度脱水工艺可以大大削减污泥量，经济优势明显。
杨晓胤 +6 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Gamification has been increasingly implemented for language learning purposes across the globe. However, there remains unknown regarding how the change in gamification design might maximize students’ language learning outcomes and engagement.
Shen Qiao +2 more
wiley +1 more source
, 2007 卡车调度在采用单斗卡车工艺的露天矿中非常重要。卡车调度可以化为一个受多变量影响的最值问题。提出卡车调度分时段优化的数学模型,及用遗传算法求解时编码、交叉、适应度计算、最优保存 ...
刘海娟, 姚再兴
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Jingshui jishu【目的】精确预测水厂进水量是水资源规划与管理的重要基础，有助于合理分配水资源、降低生产成本，同时满足城市供水需求。本文旨在构建一个创新的混合模型，实现水厂进水量的精确预测与调度优化，提升水厂的整体运行效率并实现节能减排。【方法】本文创新性地将水动力模型与极端梯度提升(XGBoost)数据模型相结合，构建混合模型，精确预测进水量并生成梯度化的优化调度方案。混合模型在考虑水厂运行特点的基础上，对进水量进行优化处理，形成满足实际调度需求的方案，为调度人员提供科学支持。本文以Z市某水厂为例，
Zhang Xiaohong +5 more
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