Results 61 to 70 of about 156,409 (144)
Effects of plateau hypoxia on pharmacokinetic parameters and cerebral-blood distribution of levetiracetam in rats. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023 Zhao A +5 more
europepmc +1 more source
[Distribution of non-bacterial pathogens in 1 788 children with community-acquired pneumonia]. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2023 Wang S +5 more
europepmc +1 more source
Gaoya dianqi, 1999 采用模拟电荷法计算了500kV瓷柱式双断口SF6断路器“Y”形和“T”形布置型式的空间三维电场,绘出了两种布置型式中轴向剖面场域分布图及断路器触头表面环向场强分布图,分析了两种系统布置的特点.
林莘, 周侗
doaj
Shuitu Baochi Xuebao, 2003 运用分形模型对不同紫色母质发育的土壤团聚体特征进行研究,结果表明:土壤团聚体粒径分布的分形维数与土壤团聚体结构破坏率存在极显著正相关(r=0.961**,n=8),与>0.25mm水稳性团聚体含量存在极显著负相关(r=-0.958**,n=8);不同紫色母质发育的土壤团聚体粒径分布的分形维数存在差异,棕紫泥土壤团聚体粒径分布的分形维数最高,暗紫泥土壤团聚体粒径分布的分形维数最低。土壤团聚体粒径分布的分形维数是评价土壤物理肥力和土壤抗蚀性的一个新指标。
骆东奇 侯春霞 魏朝富 谢德体 朱波
doaj
Zhendong Ceshi yu Zhenduan为了提高分布式光纤传感器监测结构动态响应的精度并提高损伤诊断的准确性，运用长短期记忆神经网络，建立布里渊增益谱‑频率数据关系模型，确定布里渊光时域分析技术中振幅传输模式扫描的固定频率。基于分布式光纤振动传感信息沿光纤密集分布特点，通过计算应变传递率梯度，提出了基于分布式动应变传递率梯度的损伤指标。不同损伤程度的悬臂梁分布式光纤振动传感实验表明，该方法能够实现结构损伤位置的诊断，且对毫米级裂纹仍有较强的敏感性。
doaj +1 more source
[Distribution Characteristics and the Influencing Factors of High Altitude Deterioration in People Working in Tibet]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2023 Basangzhuoma +5 more
europepmc +1 more source
[Distribution characteristics and results of allergens in patients with allergic rhinitis in Ningxia area]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023 Zhang Y +9 more
europepmc +1 more source
[Detection and Distribution Characteristics of Antibiotic Resistance Genes in Companion Animals]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanWang R, An L, Pei X, Chen J.
europepmc +1 more source
[Deep learning-based dose prediction in radiotherapy planning for head and neck cancer]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Teng L, Wang B, Feng Q.
europepmc +1 more source