Results 21 to 30 of about 570,296 (213)
工程建设, 2020 地铁的建设正处于前所未有的热潮中，在这些已建或在建的地铁当中，监控量测技术越来越受到重视。随着社会工业化进程的加快，随之对建筑基坑的位移测量技术的要求也在不断的提高，本文分析了位移测量技术在地铁车站基坑监测工程中的应用。
延昌 丁
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
工程技术研究, 2020 论文通过对宝瓶水电站砼面板堆石坝表面垂线位移进行现场核查、检验和观测精度分析，评价坝顶垂直位移监测项目是否能达到原设计的监测的目的，并对大坝垂直位移监测系统的完备性、监测设施的可靠性和稳定性等做出评价。结果表明，宝瓶水电站砼面板堆石坝表面垂直位移观测系统测点布置观测方法的观测频次满足规范要求，能够全面、准确地反映大坝表面垂直位移。
国伟 周
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Studies on classroom interactions suggest that displaying affiliation through linguistic and multimodal resources could promote positive emotions like enjoyment, thereby enhancing engagement and enthusiasm in second/foreign language learning.
Karen C. K. Choi, Kevin W. H. Tai
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Gaoya dianqi, 2020 为保障进行±800 kV输电线路带电作业人员的人身安全,对带电作业人员电位转移特性的研究有助于制定合适的安全防护措施。通过建立作业人员进行电位转移过程中基于流体动力学的棒—板间隙放电模型,仿真得到了人与导线间的空气间隙电场强度变化特性,计算了转移过程中的暂态能量,分析了转移距离为0.3～0.6 m时电位转移能量数值的分布特点。结果表明,不同转移距离下的转移能量均在1.0 J附近,随着转移距离的增大,转移能量有所增加,而转移能量高于1.0 J时,导电手套存在被烧蚀的风险,因此作业人员进行±800 ...
李智琦 +5 more
doaj
Basic income trials and the politics of scale: A research agenda
Policy Studies Journal, EarlyView.Abstract The growing popularity of basic income has led to extensive trials of the policy in numerous settings across the world. However, analysis of the politics of basic income, and in particular the political dynamics preceding and resulting from trial programs, lags. In response, we propose a research agenda that uses political scale to investigate
Jurgen De Wispelaere +2 more
wiley +1 more source
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
wiley +1 more source
Language and Linguistics / 語言暨語言學, 2019 早期上海話口語文獻顯示，雖然各類位移事件詞化結構皆有S型框架特徵，但無生自移事件S型框架傾向最強，其次是致移事件，而有生自移事件的V型框架傾向最明顯。位移事件內部詞化結構類型的差異反映了三者所受演變機制或者影響程度之別：雖然雙音節化和語義要素分離成為漢語位移事件向S型框架轉變的重要機制，但早期上海話中致移事件的詞化類型主要受制於連動結構語法化為動趨式的制約，有生自移事件卻借雙音節化使V型框架特徵更為穩定，無生自移事件因語義表達需要更青睞S型框架結構。研究表明，演變機制對詞化類型的制約作用並非均衡的 ...
Sue Lin
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source
工程施工技术本篇文章以上海市轨道交通18号线昌邑路站深基坑工程作为背景，目的介绍昌邑路站整个基坑施工过程中围护体深层水平位移在基坑开挖施工时监测数据变形情况，以及发生特殊情况时围护体深层水平位移变化发展趋势，以供后期类似深基坑工程的施工作为参考。
云龙 岳
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