Results 91 to 100 of about 9,264 (142)

过电压保护用压敏电阻

Dianci bileiqi, 1990
西德Philips公司生产了一种非线性极高的氧化锌电阻片,特别适合于作为电子设备过电压保护使用。为此研制了额定电压从14至550V,保护性能优良,能量吸收能力极高从0.1～1W,动作时间小于20ns,寿命极长大于1百万次冲击的交流压敏电阻 ...
doaj  

[Preparation of superhydrophilic imprinted resin-graphene aerogel composite and its precise recognition of tumor biomarker in urine]. [PDF]

Se Pu
Wang M, Tian T, Bai L, Han D, Yan H.
europepmc   +1 more source

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

63kV避雷器能量吸收能力的预测

Dianci bileiqi, 1995
６３ｋＶ避雷器能量吸收能力的预测按一般规律，冲击放电发生在高压架空线路上，产生５０Ｈｚ的持续电流，从而引起绝缘子串闪络。如果在绝缘子串的中央平行地安装一组ＺｎＯ避雷器，难题使得以解决。避雷器可以限制过电压并且可以切断持续电流。作者在本文中描述了这种避...
doaj  

[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Sun HJ, Zhang BB, Huang MQ, Wang H, Hu GJ, Chen HM.   +5 more
europepmc   +1 more source

[Design of ZIF-L-based boronate affinity molecularly imprinted material and its application in the detection of ribavirin in environmental water]. [PDF]

Se Pu
Qi W, Tong Y.
europepmc   +1 more source

[Clinical efficacy of simple taper-retained external connection narrow-diameter implants applied in the narrow alveolar ridge of the premolar region: a 5-8-year follow-up study]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Wu H, Cao N, Cao L, Yu F, Zhang X, Wei S, Wei H, Guo S.   +7 more
europepmc   +1 more source

[Fabrication of high-degradation-efficiency molecularly imprinted photocatalysts and its selective degradation performance]. [PDF]

Se Pu
Zhang JJ, Song YF, Liu Y, Tian XM, Gao RX.   +4 more
europepmc   +1 more source

新型球型钢支座耗能减震元件试验研究与数值模拟

Jianzhu Gangjiegou Jinzhan
在万向减震球型钢支座的基础上对其弹簧元件进行耗能设计，提出了一种新型耗能减震球型钢支座，采用钢板弹簧叠加耗能钢作为耗能减震元件。通过单调拉伸加载试验和循环拉伸加载试验，研究了Q295钢材的耗能能力，采用拟静力试验和数值分析相结合的方法，分析了支座耗能减震元件的滞回性能和自复位性能；将该新型球型钢支座应用于网架结构中，考察其耗能减震能力。研究结果表明，Q295钢材的滞回曲线饱满，具有一定的耗能能力；减震元件的耗能减震性能较好，并且具有一定的复位能力；相较于一般的弹性减震支座 ...
温旭, 姜兰潮, 秘红丹, 刘立妍
doaj  

[Arthroscopic-assisted closed reduction and internal fixation with absorbable screws for Hawkins type <b>Ⅱ</b> talar neck fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Dong Z, Cao Z, Dong H, Jiang H, Shi L, Zhang Y, Sun J.   +6 more
europepmc   +1 more source