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提升风电消纳水平的电力系统灵活性措施经济性评估方法研究 [PDF]
全球能源互联网, 2018 近年来，中国风电并网容量不断增大，出现了严重的弃风现象，随着各类技术可行的灵活性措施提出，亟需研究经济合理的措施组合以降低弃风量。为此，提出一种提升风电消纳能力的电力系统灵活性措施的经济性评估方法。首先，构建基于成本效益的经济性评价指标，即减少风电弃风量的单位成本，以量化各类灵活性措施对提高电网风电消纳能力的效果；然后，采用时序生产模拟模型量化分析系统的年度弃风总量，生产模拟模型考虑常规电源、风电及负荷，以小时为仿真粒度进行机组组合和经济调度；最后，构建了灵活性措施的年化成本模型 ...
张富强, 元博, 张晋芳, 张涛
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Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
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Jianzhu Gangjiegou Jinzhan, 2023 考虑施工工艺后，空间结构相对一次成型通常会产生附加内力。如何选用较优的施工方案，减少附加应力对结构安全的影响，是施工单位比较关注的问题。以某电教中心周边支承网架结构为例，选用常用施工工艺，进行设计-施工一体化分析，研究其杆件附加应力分布和结构安全性。结果表明，附加应力产生的主要原因是施工过程中支座约束时受力状态与一次成型有较大区别，当与一次成型接近时，杆件的附加应力较小。随着措施量的增加，各施工工艺的换杆数量逐渐递减。在分块吊装或提升工艺下，分块的数量对网架结构服役阶段位移影响较小；在滑移施工工艺下 ...
崔嘉慧 +5 more
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The Effects of Gen‐AI on Situated and Future‐Driven Academic Writing Motivation
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite the increasing use of Generative Artificial Intelligence (Gen‐AI) in education, there is still a significant gap in understanding its effects on the situated‐ and future‐driven motivation in academic writing. This longitudinal design‐based research sought to explore variations in academic writing motivation of 110 Chinese university ...
Xiao Hu +3 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Grounded in social cognitive theory, this study investigated how high‐evidence factors jointly contribute to Chinese‐as‐a‐foreign‐language (CFL) speaking self‐efficacy. Data from 236 CFL learners in Beijing revealed a multifaceted pattern of associations.
Peijian Paul Sun +3 more
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
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First, He Was Adam, and Then, She Was Eve
Sexuality, Gender &Policy, Volume 9, Issue 4, November 2026.ABSTRACT Trans* is an umbrella term that is used to describe people who identify with a gender that is different from their assigned sex at birth. There has been a marked increase in young people presenting to child and adolescent mental health services due to a lack of specialist gender clinics in the United Kingdom.
Corey Hartley +2 more
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Gaoya dianqi, 1958 1959年国家要求发电设备的生产比1958年猛增十倍多,同时要求掌握330千伏級的高电气設备的制造技术。要完成这样的艰巨的任务不是一般的計划、措施所能保证的,必须解放思想,打破迷信,发动群众研究新结构,研究新工艺,独創新办法,利用土办法大干巧干才行。 产品是我們生产的对象,一切生产活动是为完成产品品种和数量,提高产品质量和降低成本而进行的。所以产品发展方向和产品结构型式是生产厂的一个根本性的问题。
楼家法
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Gongye shui chuli, 2020 合成了一种阳离子型清水剂，并对其结构进行了红外谱图、核磁共振谱图表征分析，结果表明该产品与目标产物结构一致。在南海某油田对其净水性能做了现场瓶试试验，在投加量为14 mg/L时，其净水效果良好，下层水中含油质量浓度为79 mg/L。在和多种清水剂的对比试验中发现，该产品的处理效果优于其他几种药剂。
李家俊, 齐玉
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World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Agricultural development initiatives in sub‐Saharan Africa have emphasized improved crop varieties as a pathway to food security, resilience, and rural poverty reduction. However, empirical evidence often focuses narrowly on plot‐level outcomes and overlooks whole‐farm effects and the substantial heterogeneity in farmers' management practices,
Kodjo Kondo +4 more
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