Gaoya dianqi电网设备绝缘材料在生产、运输、施工、现场运行等过程中容易产生缺陷，这严重影响了电网的安全运行。为实现对绝缘材料缺陷的无损检测，文中提出了基于支持向量机（SVM）的太赫兹二维成像方法。制备了聚乙烯（PE）、聚氯乙烯（PVC）和硅橡胶3种带缺陷的典型电力绝缘材料平板样品进行测试，得到缺陷识别准确率的不低于92.3%。在成像方面，与传统的单一特征参数成像方法相比，SVM成像方法对缺陷区域与非缺陷区域具有更好的区分度，边缘过渡区域明显变窄，成像质量较高。
王磊 +5 more
doaj
[Spliceosome defects and neurodevelopmental disorders]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHuang XZ, Chen H, Chen RM.
europepmc +1 more source
[Association between the Preschool Auditory Processing Assessment Scale and reading-related abilities in early elementary school children]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHao BZ +5 more
europepmc +1 more source
[Interpretation of the 2026 Association Research Circulation Osseous (ARCO) International Evidence-Based Clinical Practice Guideline: Diagnosis and Treatment of Nontraumatic Osteonecrosis of the Femoral Head]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao D, Ying J.
europepmc +1 more source
Dianci bileiqi针对传统方法绝缘子自爆缺陷识别率低，存在对双串绝缘子目标分割困难的问题，本研究提出一种基于融合分割与连通域形态特征分析的绝缘子自爆识别方法。该方法首先对绝缘子红外图像进行双阈值分割，对可视光图像进行HSI颜色特征分割，采用逻辑运算实现融合分割出目标区域；然后对绝缘子目标区域进行形态学滤波和粘连连通域分离处理；接着对绝缘子连通域进行最小外接矩形定位，并构建外接矩形中点位置模型，采用最小二乘法寻找最优分离直线实现双串绝缘子分离，最后对相邻绝缘子间距的大小设立阈值实现自爆缺陷识别。试验结果表明 ...
罗朝丰 +6 more
doaj
[Advances in the application of individualized white-matter functional networks in children and adolescents with attention-deficit/hyperactivity disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiYang HH, Hou JL.
europepmc +1 more source
[Surveillance of birth defects among perinatal infants in Guiyang City, 2016-2024, and trend prediction]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWang Y, Yang JY, Tang LY.
europepmc +1 more source
[Neurophysiological differentiation of children with ADHD alone and ADHD comorbid with dyslexia: a P600-like component analysis]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHuang YH +9 more
europepmc +1 more source
, 2006 综合深能级缺陷和电学性质的测试结果，证明了半绝缘InP单晶材料的电学性能、热稳定性、均匀性等性能与材料中一些深能级缺陷的含量密切相关．通过分析深能级缺陷产生的规律与热处理及生长条件的关系，给出了抑制缺陷产生，提高材料质量的途径 ...
董志远 +4 more
core
[Focusing on profound autism: validity of clinical taxonomy and management of treatment-resistant symptoms]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiXue Y, Jia FY.
europepmc +1 more source