Results 11 to 20 of about 24,784 (188)
, 2016 本文研究渤海海峡跨海通道实施之后带来交通流向的变化,通过对现状区域交通流向的分析预测,以及渤海湾通道对辽宁交通运输网的影响为基础,研究提出渤海湾通道建设的关键问题及解决建议 ...
姚宏伟
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European Policy Analysis, EarlyView.ABSTRACT Policy process research has excelled in explaining structural policy change within national settings, but extensions and applications to the EU level have long proven challenging for scholars. Given that the EU is currently experiencing its longest period of Treaty stability since the 1980s—having evolved into a sui generis political system ...
Vassilis Karokis‐Mavrikos
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
Integrative Conservation, EarlyView.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
A Study on the Traffic Impact of Tourism—Taking Huandao Road in Xiamen as an Example [PDF]
, 2015 旅游业的迅猛发展，人们的出游意愿不断高涨，快速增长的旅游出行，产生了大量的交通量。旅游黄金周期间热门景区交通拥堵现象屡见不鲜，旅游对交通的影响已经不容忽视，尤其在城市旅游景区周边产生的交通拥堵，严重影响到城市居民正常出行和居民生活质量。 为了更进一步阐述旅游对交通产生的影响，本文将旅游与交通进行了全面梳理。首先，从旅游交通的相关理论，交通需求特点、旅游空间行为、旅游出行特性等方面着手，分析了旅游的哪些要素可能会影响交通。其次，结合交通工程学的相关交通影响评价指标，如道路服务水平、饱和度、交通流量等参数 ...
翁艳玲
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Integrative Conservation, EarlyView.Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee +5 more
wiley +1 more source
Design and Implementation of Mobile Resource Management System for a Mobile Communication Company [PDF]
, 2016 随着全球移动通信技术的日新月异，中国电信运营商在移动业务上展开激烈的竞争。部署高品质的网络、不断压缩网络的建设与故障处理历时是移动网络品牌的核心。合理利用网络资源，科学动态的管理资源是提高核心竞争力的根本方法，也是三大运营商共同面临的问题。建立移动资源管理系统将基站建设环节与移动网络基站所需资源相结合，使某移动通信公司基站资源、核心网设备资源、建设进度管理以及基站调度开通环节等需求融入到移动资源管理系统的设计过程中，并根据基站建设过程中容易出现的问题，给出合理的、有效的系统解决方案 ...
丁钰钊
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Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
People and Nature, EarlyView.Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley +1 more source
Wildlife Letters, EarlyView.The Amur tiger, an endangered flagship species mainly found in the Russia Far East and Northeastern China, holds immense biological importance, and has been listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
Wei Xie +15 more
wiley +1 more source
Gaoya dianqi, 2020 GIS回路中导电接触状态关系到GIS的安全运行。文中通过对GIS回路电阻特性的研究,指出了通过直流法测量回路电阻来评估GIS回路接触状态的不足,发现直流法在测量回路电阻时存在一定随机性,且直流法通流时间短、电流幅值小、没有交流电动力的影响,与实际运行时的设备状况相差较大,不能准确反映GIS回路接触的真实情况,也不能用于对GIS回路电接触劣化程度进行准确评估。为了探究实际运行中导体发热和电动力产生的振动等因素对电接触的影响,文中在GIS设备中通过交流电流进行温升试验,并利用交流法计算了温升过程中回路电阻 ...
高凯 +5 more
doaj
9.Maximum Entropy法による精密結晶構造解析(名古屋大学大学院工学研究科応用物理学専攻,修士論文題目・アブストラクト(1988年度)) [PDF]
, 1989 この論文は国立情報学研究所の電子図書館事業により電子化されました
佐藤, 真澄
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