Results 81 to 90 of about 2,570 (139)

[Three-dimensional printed scaffolds with sodium alginate/chitosan/mineralized collagen for promoting osteogenic differentiation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yang B, Lian X, Feng H, Qin T, Lyu S, Liu Z, Fu T.   +6 more
europepmc   +1 more source

岳飞故事：史实的拘泥与民间性的失度 [PDF]

, 2006
朱恒夫
core  

[Clinical analysis of the low-temperature coblation resection of lingual thyroglossal duct cysts in children under self-retaining laryngoscope]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Ji W, Zhang H, Fan M, Zhao X, Yang S.
europepmc   +1 more source

宁夏高污秽地区绝缘子表面污秽的表征与积污特性研究

Dianci bileiqi
宁夏高污秽地区工业排放与扬沙天气等的作用下，会使输电线路绝缘子形成表面积污，污秽中可溶性盐含量及污秽成分对于污秽评级及防污闪具有重要指导意义。本研究通过采集宁夏四个高污秽地区89个绝缘子表面污秽样品，测得等值盐密和灰密数据，并选取四个地区的典型样品对其微观形貌、元素组成、可溶盐中阴阳离子及不溶物成分进行分析。结果表明：宁夏高污秽地区绝缘子污秽的灰盐比较大，在4~7之间；大气中可悬浮颗粒粉尘是造成绝缘子表面积污的主要来源，污秽粒径主要集中在10 μm左右；在双气氛条件下对污秽进行TG-MS分析 ...
陈磊, 伍弘, 杨粤, 郝金鹏, 刘世涛, 阚浩勇, 房子祎, 李平   +7 more
doaj  

[Finite element analysis of impact of bone mass and volume in low-density zone beneath tibial plateau on cartilage and meniscus in knee joint]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Han L, Hou W, Lu S, Zeng Z, Lin K, Han M, Luo G, Tian L, Yang F, He M, Wei Q.   +10 more
europepmc   +1 more source

[Association between Tau protein deposition and brain metabolites: N-acetylaspartate and creatine as potential biomarkers for advanced Alzheimer's disease]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li X, Zhang Y, Gu Y, Chen N, Qian X, Zhang P, Hao J, Wang F.   +7 more
europepmc   +1 more source

基于温度概率密度的柔直换流阀功率模块故障热红外图像识别方法

Gaoya dianqi
为了准确识别柔直换流阀功率模块故障，保证高压直流输电安全、稳定地运转，提出基于温度概率密度的柔直换流阀功率模块故障热红外图像识别方法。通过热红外图像中目标约束区域和背景采样区域的核密度估计，提取柔直换流阀功率模块热红外图像目标区域；基于核密度估计提取温度概率密度，将其作为区分热红外图像目标区域中正常运行区域和故障区域的特征，结合热红外图像中目标区域内阈值，初步划分故障区域，将初步划分结果作为K-means聚类算法的先验知识，通过不断聚类故障区域簇类，达到识别故障的目的。实验验证：所提方法通过集成灰度 ...
盛宇军, 孙杰, 李国强, 解晓东, 周凯, 张笑迪   +5 more
doaj  

[Endodontic retreatment of a maxillary second molar with chronic apical periodontitis and separated instrument: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zang H, Liang Y.
europepmc   +1 more source

[Effects of miR-100-5p on proliferation and apoptosis of acute myeloid leukemia cells and the underlying molecular mechanism]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Fan XR, Yang Y, Sun Y, DU CM.
europepmc   +1 more source

[A case report of right sinonasal carcinosarcoma and literature review]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Leng H, Sun J, Wang A, Wang Y.
europepmc   +1 more source