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Guangtongxin yanjiu, 1990 本文论述了应力浸蚀及抗疲劳原理,以及为提高纤维机械性能的可靠性,提出制造抗疲劳纤维的两种途径:一是减小纤维受到的应力,即压应力技术;二是隔绝大气环境的密封被覆技术。最后介绍了抗疲劳光纤的应用前景。
王光宗
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智能城市应用, 2023 在冶金工业厂房中重级制吊车的运行区域，工字形钢吊车梁腹板与上翼缘连接处经常出现疲劳损伤，对生产安全带来了极大的威胁，所以确认钢吊车梁该处发生疲劳损伤的原因并进行加固具有重要意义。本篇文章以某实际项目为例，建立全尺寸全系统的有限元计算模型，分析吊车梁腹板与上翼缘连接处出现损伤的原因，并且确定加固方案后，对比加固前后以及不同加固方案下的腹板抗疲劳性能，为吊车梁的抗疲劳设计提供有效的指导。
佳玲 李, 少博 皮, 韫鑫 李
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Journal of Advanced Nursing, Volume 77, Issue 4, Page 1825-1838, April 2021., 2021 Abstract Aim To analyse the interactions of associated factors with post stroke fatigue (PSF) after discharge home and determine the predictors of PSF and their impact on stroke survivors. Design A prospective observational study. Methods A total of 94 patients with acute stroke were recruited between May 2019 ‐July 2020. The main outcomes were fatigue,
Ya Su +7 more
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中西医结合护理, 2021 Fatigue is one of the common symptoms of chronic obstructive pulmonary disease (COPD) patients, which has a serious negative impact on their physiological function and mental health.
KOU Xuemei (寇雪梅) +1 more
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Journal of Traumatic Stress, Volume 33, Issue 6, Page 1060-1070, December 2020., 2020 Abstract Survivors of traumatic events commonly suffer from long‐term pain and related somatic symptomatology. To test the predominant hypothesis that survivors’ pain comprises sequela of persistent posttraumatic stress symptoms (PTSS), we assessed the sequential order of symptom development among young survivors of a terrorist attack.
Synne Øien Stensland +4 more
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Journal of Advanced Nursing, Volume 76, Issue 11, Page 3104-3112, November 2020., 2020 Abstract Objectives To describe how Registered Nurses make use of a Clinical Decision Support System to triage calls to emergency medical dispatch centres, from the perspective of professional autonomy. Design The study had a descriptive design with a qualitative inductive approach.
Inger K. Holmström +4 more
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Jianzhu Gangjiegou Jinzhan, 2022 针对钢桥中钢板疲劳裂纹进行了一系列疲劳裂纹修复试验研究，以确定不同修复方法下结构的疲劳性能。高弹模CFRP（碳纤维增强复合材料）修复法是通过粘贴高弹模CFRP布来增大结构刚度，以延长结构疲劳寿命，且碳纤维材料基本不会产生疲劳裂纹，具有较好的抗疲劳效果。采用数值模拟和试验研究相结合的方法，首先对修复钢板的应力分布和特点进行了详细的分析，然后通过3组对比疲劳试验，确定了不同修复方法对损伤钢板疲劳寿命的增强效果。最后利用修复试验值与各国规范规定的S-N曲线进行比较，分析已修复钢板的疲劳性能。研究结果表明 ...
吕志林 +4 more
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Jianzhu Gangjiegou Jinzhan, 2021 利用Matlab程序模拟吊车梁变幅应力荷载谱并采用考虑低应力幅值影响的疲劳曲线,应用有限元分析方法,将波纹腹板H形钢吊车梁与具有相同承载力极限和荷载边界条件的普通平截面H形钢吊车梁的疲劳寿命进行比较。结果表明,波纹腹板H形钢吊车梁相对于普通平截面H形钢吊车梁的整体疲劳性能和疲劳寿命均得到了较大的提升。此外,通过改变腹板构件的波纹尺寸对结构的疲劳寿命进行了参数分析,包括波纹腹板的波纹高度、波纹长度和波纹倾角,系统地研究了波形腹板H形钢吊车梁的疲劳寿命,最后结合波纹腹板在不同尺寸时的钢材使用量 ...
徐忠根, 郭轩, 邓长根
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Laser powder bed fusion (LPBF) can fabricate high‐entropy alloys (HEAs) with refined microstructure and enhanced mechanical properties. However, the deformation and fatigue mechanisms of Al‐containing HEAs produced by LPBF remain unclear. In this work, we systematically investigate the tensile properties, deformation mechanisms, and high‐cycle
Dan Zheng +4 more
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International Journal of Applied Linguistics, Volume 35, Issue 3, Page 1121-1133, August 2025.ABSTRACT Although psychological factors such as emotion and engagement have gained increasing attention for their role in language learning success, a substantial gap remains in understanding the sources of boredom and its impact on learners’ engagement, whether behavioural, affective or cognitive, in languages other than English (LOTE).
Xian Zhao, Danping Wang
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