Results 51 to 56 of about 113 (56)

ZnO电阻片tgδ的定义与测量

Dianci bileiqi, 1989
将线性介质的tgδ定义推广到非线性元件ZnO电阻片,同时说明用电桥测量的缺点,提出了新的数字测量方法.
招誉颐
doaj  

[Establishment and application of key technologies for periodontal tissue regeneration based on microenvironment and stem cell regulation]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Ma B, Li J, Sang Y, Yu Y, Qiu J, Shao J, Li K, Liu S, DU M, Shang L, Ge S.   +10 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

[Classification and Application of Ultrasound-Responsive Nanomaterials in Anti-Inflammatory Therapy]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xie L, DU Z, Peng Q, Zhang K, Fang C.
europepmc   +1 more source

[Recent advances of molecular imprinting technology for the separation and recognition of complex biological sample systems]. [PDF]

Se Pu
Xie BX, Lyu Y, Liu Z.
europepmc   +1 more source

动车组车顶避雷器ZnO压敏电阻片老化现象分析

Dianci bileiqi
高速铁路采用分相供电技术，接触网谐波含量高、暂态过电压大，对车顶避雷器提出严峻挑战。对动车组的运行工况进行了实测，发现谐波主要为25次、27次和29次，总波形畸变率（THD）最高可以达到79.8%。ZnO压敏电阻片的老化测试是在对电压波形进行准确模拟后进行的。老化后，电流密度-电场曲线正负方向不对称，电阻片在负方向劣化更严重，其中非线性系数从43.4减小到30.8，漏电流密度从0.85 μA/cm2增加到2.51 μA/cm2。在老化期间，两种动态过程占主导地位，即空界面态捕获电子和吸附氧（Oad ...
赵霞, 雷挺, 沈海滨, 张搏宇, 吕雪斌, 郭子炘   +5 more
doaj   +2 more sources