Results 41 to 50 of about 18,570 (167)
He jishu针对大型加速器定时系统中各节点因光纤长度差异引起的延时问题，提出了一种基于事件定时系统的深度优先多节点自动延时补偿算法，旨在解决因光纤长度差异导致的时间同步问题与长距离光纤传输带来的稳定性问题，并通过测量不同设备的触发信号到达时间，根据算法进行延时调整，采用125 MHz事件时钟，实现8 ns时间精度的延时补偿。在涉及6 m和30 m光纤长度的测试中，延时补偿成功实现了信号输出对齐，对齐精度约为5.5 ns，证明了该算法在保持不同光纤长度同步方面的有效性，该算法提高了事件定时系统的时间同步精度和稳定性 ...
彭 仲达 +3 more
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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, Volume 5, Issue 1, Page 46-58, March 2026.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
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High‐Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT X‐ray delayed imaging technology leverages an “irradiation‐storage‐thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high‐temperature/high‐radiation environments. This typically requires materials combining abundant carrier‐trapping energy levels with structural thermostability ...
Jun‐Xiao Wu +6 more
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Journal of Curriculum Studies本研究目的在於考驗主動／被動拖延者在依賴型人格及社會閒散現象之差異，以及控制在團體課業分派下，兩者是否因高／低任務可視性而增加社會閒散現象。研究結果為：一、主動拖延者及被動拖延者之兩組模型關係相似；二、主動拖延者比被動拖延者具有較高之壓力偏好、期限因應能力及意圖拖延，較低的依賴型人格，但與被動拖延者具有相似程度之任務反感及失敗恐懼；三、對被動拖延者而言，低任務可視性組會比高任務可視性組產生較高之社會閒散現象。對主動拖延者而言，高任務可視性組則會比低任務可視性組產生較高之社會閒散現象。 The main
邱紹一 Shao-I Chiu +1 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
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The Microstructure Evolution and Mechanical Properties of (FeCoCrNi)100‐x(AlCu)x High‐Entropy Alloys
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT This study systematically investigates the effects of AlCu addition on the microstructural evolution and mechanical properties of (FeCoCrNi)100‐x(AlCu)x (x = 0, 5, 10, 15, 20; at%) high‐entropy alloys (HEAs). The results reveal that the microstructure evolves from coarse equiaxed to refined equiaxed, dendritic, and ultimately dual‐phase ...
Shunfu Xie +7 more
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Jianzhu Gangjiegou Jinzhan设计制作了4个H型钢梁试件，通过拟静力试验得到不同腹板高厚比以及钢种组合下钢梁的破坏形态、滞回曲线、骨架曲线以及延性等，从而评价试件的滞回性能。随后利用有限元软件ABAQUS进行模拟验证，通过参数分析进一步补充不同腹板高厚比和钢种组合对钢梁滞回性能的影响。结果表明：随着腹板高厚比的减小，钢梁的延性和耗能能力均有所提高，且增大腹板厚度对钢梁延性的提高程度大于极限承载力的提高程度；相比同钢种钢梁，多钢种钢梁极限承载力提高了17.4%，延性降低5.6%。随着多钢种钢梁翼缘强度等级的增大 ...
朱爱珠 +4 more
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Jianzhu Gangjiegou Jinzhan, 2022 在已有研究的基础上，进一步探究分层型梯形加劲肋对内嵌组合平钢板剪力墙滞回性能的影响。设计出分2层和3层的交叉密肋内嵌组合平钢板剪力墙，均为双层单跨试件。利用有限元软件ABAQUS对其进行非线性和线性荷载作用加载，与已有的不分层交叉密肋平钢板组合剪力墙进行对比分析。研究结果表明：结构的承载力随着梯形加劲肋分层数目的增加而逐渐降低，但是其延性却随之增加，对比分析3个试件有限元模拟的结果，结构的承载能力和延性性能并非随着梯形加劲肋分层数目的增多而呈现线性变化 ...
刘源, 杨瑞鹏, 谢亚欣, 郑宏
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Guangtongxin yanjiu, 2012 为分析融合网络中聚合业务的端到端时延性能,提出一种基于聚合流的融合网络端到端统计时延界的新算法。该算法利用MGF（矩母函数）重新表征了网络端到端时延界的MGF形式的概率模型。数值分析结果表明了该算法的有效性和优越性,该算法很大程度上提高了独立统计复用,对融合网络性能评价具有参考意义。
赵一A, 张中荃
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