Dianci bileiqi近几年来复合绝缘子缺陷、故障问题频发，其中影响最大的就是复合绝缘子芯棒酥朽断裂问题。为进一步研究串型、温升与绝缘子内部缺陷的关联性，文中以华中地区某两条500 kV架空线路57支发热复合绝缘子为研究对象，开展了实验室红外检测、数字X射线检测（DR检测）、剖检等11项综合性试验。结果表明，该批次复合绝缘子存在严重的护套与芯棒粘接不良家族性缺陷，该缺陷是导致绝缘子异常发热的根本原因。同时紧凑型V串绝缘子受力和高场强影响，缺陷率相对I串较高。此外，通过对比分析多项试验所检出的缺陷情况和缺陷位置 ...
袁一钧 +8 more
doaj
[Clinical and genetic characteristics of 14 children with sodium taurocholate co-transporting polypeptide deficiency]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiMa RX +7 more
europepmc +1 more source
[Physical growth and dietary characteristics of children with attention deficit hyperactivity disorder: a cross-sectional study]. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2023 Lin S +5 more
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Jianzhu Gangjiegou Jinzhan钢管混凝土（concrete-filled steel tubular，CFST）构件在施工过程中，会因施工人员操作不当、混凝土发生收缩等原因使其内部产生不密实缺陷，其中脱空缺陷会削弱钢管与混凝土之间的相互作用，导致构件承载力下降。因此有必要加强对CFST构件脱空缺陷的检测。本文提出了一种基于红外热成像法对CFST进行脱空缺陷检测的方法，相关理论研究表明：当结构存在缺陷或损伤时，该结构的热物理特性会发生变化，体现为物体表面局部温度发生异常。进行红外热成像法检测CFST脱空缺陷试验研究 ...
何健 +6 more
doaj
[Application of Magnetic Resonance Imaging in the Diagnosis and Treatment of Middle Compartment Defect]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLuo S +6 more
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Jianzhu Gangjiegou Jinzhan对接焊缝为典型的钢结构焊缝形式，其位置处的裂纹和气孔型缺陷的准确检测对于钢结构维护有着重要的意义，使用磁记忆检测技术对焊缝裂纹和气孔型缺陷进行定位时，传统的零点极值理论由于焊接残余应力的影响，难以区分残余应力、焊接裂纹和气孔型缺陷所产生的磁信号，从而在实际检测中造成缺陷定位的误判和漏判，因此，从焊接裂纹和气孔型缺陷和残余应力所在区域磁信号产生机理的不同入手，开展考虑残余应力影响下的焊接裂纹和气孔型缺陷定位检测研究。首先对焊接残余应力与裂纹和气孔型缺陷产生磁信号的机理进行分析 ...
陈悦, 潘学豪, 邓淋方
doaj
Rescuing lysosomal/autophagic defects via nanoapproach: implications for lysosomal/autophagic defect-related diseases. [PDF]
J Zhejiang Univ Sci BHuang X +6 more
europepmc +1 more source
Physical and neuropsychological development of children with Citrin deficiency. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2021 Zhang NS +4 more
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[Best evidence summary for management of sleep disorders in children with attention deficit hyperactivity disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLin YT, Luo LH, Peng TQ, Tan CW, Lei H.
europepmc +1 more source
[Electroencephalographic assessment of the relationship between frontal alpha asymmetry and emotion dysregulation in children with attention deficit hyperactivity disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiChen L, Zhao LL, Wu XC, Li HY, Zhang WW.
europepmc +1 more source