Results 91 to 100 of about 3,639 (182)

Simple sequence repeats and their expansions: role in plant development, environmental response and adaptation

open access: yesNew Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.
Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar   +3 more
wiley   +1 more source

直流故障引发直流外送系统新能源脱网问题研究 [PDF]

open access: yes, 2023
含高比例新能源的直流外送系统由于送端发电设备支撑能力薄弱,在直流故障发生后新能源发电设备面临着过电压脱网风险。为了防止新能源脱网事故的发生,首先建立新能源直流外送系统仿真模型分析新能源机端暂态过电压形成机理,其次根据无功传输规律分析常规机组、调相机、电气距离等因素对新能源脱网的影响,定量分析常规机组的电压调节灵敏度,在此基础上利用新能源短路比指标对新能源脱网情况进行量化分析,最后根据分析结果提出了提高短路容量、提高风机高压穿越能力等预防直流故障后新能源脱网的策略 ...
严欢   +5 more
core   +1 more source

Evaluating conflict in collaborative environmental governance: A study of environmental justice councils

open access: yesReview of Policy Research, Volume 42, Issue 3, Page 576-606, May 2025.
Abstract The formal engagement of diverse stakeholder groups in environmental policy design and implementation is increasingly common. While engaging diverse stakeholders in common fora can help address complex environmental dilemmas, insofar as different stakeholders have varying perspectives and resources to contribute, this same variance can lead to
Graham Ambrose   +2 more
wiley   +1 more source

Strategies for advancing inclusive biodiversity research through equitable practices and collective responsibility

open access: yesConservation Biology, Volume 38, Issue 6, December 2024.
Abstract Biodiversity research is essential for addressing the global biodiversity crisis, necessitating diverse participation and perspectives of researchers from a wide range of backgrounds. However, conservation faces a significant inclusivity problem because local expertise from biodiversity‐rich but economically disadvantaged regions is often ...
Jose Valdez   +8 more
wiley   +1 more source

关于细胞-组织视角的能源互联网分布式自治系统形态特征的讨论 [PDF]

open access: yes全球能源互联网, 2019
以能源互联网为代表的能源工业核心方案促进了多种能源和电力的互动,极大地改变了多种复杂网络的结构层次和耦合模式。在此背景下,比较了信息互联网和能源互联网的特点,总结了能源互联网关键技术和研究难点,并提出能源路由器等物理设备在SoS(system of systems)概念下的全新意义。然后,在总结了目前能源互联网的几种架构和运行形态的基础上,提出细胞-组织(cell-tissue)视角下能源互联网的形态特征和描述方法,并在信息网络安全、运行状态评估和网络建模技术方法等诸多核心问题上 ...
程浩原   +4 more
doaj   +1 more source

天然气压力能发电-制冰利用及运行效益评估研究 [PDF]

open access: yes, 2023
天然气压力能是一种新兴清洁能源,对其进行高效利用是节约能源、降低碳排放的有效手段。目前,天然气压力能回收利用中存在用能模式单一、评估指标片面以及评估方法缺乏等问题,导致天然气压力能利用率低,运行效益和系统不足无法被准确评估,行业发展受阻。首先,提出了天然气压力能综合利用方案,使用透平膨胀机回收压力能发电,降压过程中产生的冷能用于制冰,并加入太阳能热水系统提高出站气温度,提高能源利用效率。其次,基于分析模型并考虑经济性和环保性构建了压力能利用系统运行效益评估指标体系,对系统的运行状态进行全面、综合的评估 ...
廖长江   +5 more
core   +1 more source

Trade credit and corporate digital transformation: The role of managerial ability

open access: yesFinancial Review, Volume 59, Issue 3, Page 779-806, August 2024.
Abstract We examine whether managerial ability affects the relationship between corporate digital transformation and trade credit. To measure digital transformation, we perform a textual analysis of companies’ annual reports using a customized Chinese dictionary containing digital transformation keywords based on national policy documents and academic ...
Liukai Wang   +3 more
wiley   +1 more source

“绿色竞赛”:中美气候竞争的表现、原因与应对 [PDF]

open access: yes, 2022
拜登政府上台后,将气候问题作为其政策重点,展现了强烈的气候治理雄心。但拜登政府却主动发起针对中国的“绿色竞赛”,在气候问题上与中国展开竞争。“绿色竞赛”是指中美在“气候危机”共识下,虽然有着巨大合作空间,却受中美战略竞争大环境影响难以开展有效的合作。“绿色竞赛”的实质是拜登政府将中美战略竞争引向气候领域,来达到遏制中国的目的。拜登政府通过争夺全球气候议程主导权、拉拢其他国家试图孤立中国、加大“碳中和”技术和基建投入、提出“B3W”等竞争性方案等方式展开“绿色竞赛 ...
戚凯, 李坤泽, 许勤华
core   +1 more source

Website blocking in the European Union: Network interference from the perspective of Open Internet

open access: yesPolicy &Internet, Volume 16, Issue 1, Page 121-148, March 2024.
Abstract By establishing an infrastructure for monitoring and blocking networks in accordance with European Union (EU) law on preventive measures against the spread of information, EU member states have also made it easier to block websites and services and monitor information.
Vasilis Ververis   +3 more
wiley   +1 more source

英加水电消纳市场和外送方案研究

open access: yes全球能源互联网, 2018
刚果河是世界上水力资源最为丰富的大河之一,其中超过40%集中在刚果(金)下刚果省的英加地区。自上世纪五十年代大英加工程设想提出以来,英加水电的开发和外送一直受到全世界的关注。然而,受限于建设资金和消纳市场等问题,目前开发率尚不到百分之三,具备巨大的发展潜力。从消纳空间和比较优势两方面分析了英加水电的潜在市场,并结合电源开发进度提出了输电方案。分析表明,大英加工程作为非洲重要的清洁能源基地,其外送电力在西部非洲、南部非洲和北部非洲具有较强的竞争力。加快大英加水电开发和外送对推进非洲能源互联网建设 ...
邬炜
doaj   +1 more source

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