Results 111 to 120 of about 419,675 (150)

[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]

Se Pu
Ye WM, He DC, Cui XJ, Ma HW, Qian B, Shi F.   +5 more
europepmc   +1 more source

[Precise measurement of human heart rate based on multi-channel radar data fusion]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Guo H, Cao H, Yang K, Zhang Z.
europepmc   +1 more source

用大电流按IEC方法试验金属氧化物避雷器

Dianci bileiqi, 1992
在研制和设计保护电器的时候,关于其保护特性和通流容量的稳定性方面是可信的信息,可能是来自该电器在实际网路上进行的试验或在试验室条件下进行的工作性试验.对于金属氧化物避雷器,IEC刊物（草案）推荐进行下列各种工作试验:标称冲击电流,短时间大幅值冲击电流,各种不同波长的冲击电流与施加各种不同幅值工频电压的联合作用.文章叙述了可以满足IEC草案规定的金属氧化物避雷器大幅值冲击电流工作试验的全部要求的试验设备,列出了O?H—110试样的试验结果及其采用方法的评价 ...
doaj  

[Characteristics of the subtype of vestibular migraine with ear fullness: association with early onset age and low-frequency hearing loss]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Jiang L, Yu S, Lei Y, Zong X, Zhong S, Zuo W.   +5 more
europepmc   +1 more source

百米级尺寸风机叶片雷电下行先导接闪特性的仿真研究

Dianci bileiqi
针对百米级长度风力发电机叶片雷击接闪特性不明晰、防护设计缺乏依据的问题，本研究建立了大容量风机叶片雷击接闪过程的三维仿真模型，模型计算结果与运行数据吻合。计算获得了6.7MW风机叶片沿长度方向不同位置的雷击暴露空间和年雷击次数的分布特征，结果表明随着雷电流幅值增加，叶尖的引雷能力增强并对叶片内侧存在屏蔽作用，自叶尖往叶根方向年雷击次数迅速衰减。当风机叶片与纵轴线夹角为90°时，叶片内侧遭受雷击的风险最高。与1.5MW机组相比，6.7MW风机叶片内侧年雷击次数增加1.71倍。分析表明，雷电流幅值为5.0 ...
秦明, 文仁强, 邬锦波, 程建, 慎志勇, 吴松熊, 谢思源, 贺恒鑫   +7 more
doaj  

[Research progress in the application of ivabradine in children with cardiovascular diseases]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Jiang L.
europepmc   +1 more source

[Practical guideline on the prevention and management of diabetic foot in China (Ⅰ)]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Chinese Burn Association, Yangtze River Delta Integrated Diabetic Foot Alliance, Editorial Committee of Chinese Journal of Burns and Wounds.   +2 more
europepmc   +1 more source

[Rosa laevigata Michx. inhibits pulmonary arterial smooth muscle cell proliferation in hypertension by modulating the Src-AKT1 axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang Z, Lü C, Dong Z, Ji S, Bi S, Zhang X, Wang X.   +6 more
europepmc   +1 more source

[Retinal protective effects of zinc<b>-</b>loaded magnesium oxide nanoparticles in a glutamate<b>-</b>excitotoxicity glaucoma model]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Feng L, Chen Y, Wang C, Zhu W, Zhang C, Huang Q, Song W.   +6 more
europepmc   +1 more source

[Application of multimodal intraoperative neurophysiological monitoring technology in neurofibromatosis type 1 related peripheral nerve tumor surgery]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhou W, Zeng Y, Ouyang H, Zhang W, Wang Z, Wu Y.   +5 more
europepmc   +1 more source