, 2014 针对道岔结构性能及安全状态对列车(尤其高速列车)行车安全与运行质量的重要性,提出基于光纤布拉格光栅(FBG)传感技术,利用FBG传感器反射谱特征对铁路道岔钢轨结构进行损伤(裂纹)识别。在带裂纹的道岔钢轨上安装FBG传感器进行静、动态加载室内实验。通过分析FBG传感器反射谱形状精细变化,实现对裂纹的识别。实验结果表明,该基于FBG反射谱特征的损伤识别方法可有效识别铁路道岔钢轨裂纹。中央高校基本科研业务费专项资金资助(2013QNA4023);国家自然科学基金(51108392 ...
倪一清, 叶肖伟, 姜洋, 董小鹏
core
Zhongshan Daxue xuebao. Yixue kexue ban目的了解接受抗病毒治疗HIV/AIDS患者抑郁状况及其影响因素。方法2022年7月-2022年9月，采用连续抽样法从南京市抗病毒治疗机构招募接受抗病毒治疗HIV/AIDS患者，进行匿名问卷调查，收集患者基本信息，采用患者健康问卷抑郁量表（PHQ-9）、简化的Berger艾滋病感知歧视量表（BHSS）及感知社会支持的多维度量表（MSPSS）调查抑郁状况、HIV耻辱得分以及社会支持水平等。采用多因素Logistic回归分析患者抑郁的影响因素。结果本研究共收集有效问卷1 879份，抑郁检出率为50.1 ...
袁欣 +6 more
doaj
[Research progress on flexible wearable sensors for health monitoring]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiChen X, Xu G.
europepmc +1 more source
Shuitu Baochi Xuebao目的摸清江西省设施菜地当前土壤养分累积现状及氮磷流失特征，为准确评估其环境的污染风险及全省设施蔬菜产业的健康发展提供数据支撑。方法采用多点取样的方法对全省11个设区市不同种植年限设施菜地0～100 cm土层的养分累积量情况进行分析，并通过原位监测的方法收集设施菜地氮磷流失的特征信息。结果1）设施菜地土壤酸化严重，0～20、20～40 cm土层pH分别为5.44和5.56。2） 0～20 cm土层土壤养分整体属中等肥力水平，且在种植年限≤10 a时土壤养分随种植时间的延长而增加，在11～20 a种植年限时（
杨涛 +6 more
doaj
[Design and validation of a multimodal model integrating text and imaging data for intelligent assessment of psychological stress in college students]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXie H +5 more
europepmc +1 more source
Image Acquisition of Critical Bridge Components Using Vision-guided Autonomous Vehicle [PDF]
This research proposes a vision-guided autonomous navigation framework for unmanned vehicles performing image acquisition for bridge inspection. The proposed framework integrates visual SLAM with RGB-D image input with semantic segmentation to detect and
Li, Yuxuan +5 more
core +1 more source
[Application of salivary micro-ecosystem in early prevention and control of oral and systemic diseases]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanSun X, Yuan C, Zhou X, Diao J, Zheng S.
europepmc +1 more source
[Integration of Microbiome Research and the One Health Approach Promotes Innovation and Development in Public Health Laboratory Sciences]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanYang R.
europepmc +1 more source
[Progress on the application of system dynamics model in the field of health management]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanWu Q, Zhou H, Zhao B, Shao J.
europepmc +1 more source
[Single-cell RNA sequencing of B cells reveals molecular typing in Sjögren syndrome]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLin W +6 more
europepmc +1 more source