Results 81 to 90 of about 4,156 (149)

[Rapid determination of 12 photoinitiator residues in medicinal composite membranes by ultra performance convergence chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Cao YJ, Liu CX, Chen LL, Shang Y, Chen XL, Hu B, Fu M, Hu M.   +7 more
europepmc   +1 more source

[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[Simultaneous identification and detection of four novel isoxazoline drugs in bovine-origin foods using ultra-high performance liquid chromatography coupled to quadrupole/linear ion trap mass spectrometry]. [PDF]

Se Pu
Yang C, Zhu WX, Liu YF, Wei W, Zhao F, Hu K, Zhao WJ.   +6 more
europepmc   +1 more source

[Comparative study of different treatment methods for peroneus longus tendon stump in anterior cruciate ligament reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang P, Liu Z, Shi Z, Zhao F, Wang J, Li H.   +5 more
europepmc   +1 more source

[Development and validation of a risk prediction model for cognitive impairment in rural elderly Chinese populations: evidence from the CHARLS study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang F, Li W, Shang X, Li F.
europepmc   +1 more source

金属氧化物避雷器陡波冲击电流试验

Dianci bileiqi, 1991
IEC37草案用波前1μs冲击电流和40/100μs操作电流作试验。此时需注意阀片残压的初始过冲。许多制造厂做0.1μs波前的电流波试验。这种试验装置很昂贵,又很难与4/10μs电流波装置结合起来使用,而且同一阀片用不同试验装置试验时,残压起始过冲相差很大。
doaj  

[Evaluation of anorectal dynamics in children with tethered cord syndrome before and after surgery and its clinical significance]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Xu QC, Shen ZP, Zhang PL, Feng JY, Jiang MZ.   +4 more
europepmc   +1 more source

不同冲击电流波下金属氧化物避雷器仿真模型适用性研究

Gaoya dianqi
文中对几种具有代表性的金属氧化物避雷器用电阻片进行了30/60、8/20、4/10、1/5 μs 4种冲击电流波下的残压和能量特性实验研究，分析了IEEE、CIGRE、Pinceti与MWR避雷器仿真模型的适用性。结果表明，IEEE模型在1/5 μs、幅值<10 kA陡波电流下残压模拟较差，4种冲击电流波下能量模拟均较差；CIGRE模型在1/5 μs、幅值>5 kA陡波电流下残压模拟较差，4种冲击电流波下均可较好的模拟避雷器能量特性；Pinceti ...
陈洁, 赵丹丹, 张宗扬, 陈喆, 焦婷, 陆冰冰, 江安烽, 田越, 赵莹莹, 郭洁   +9 more
doaj  

[Determination of 26 herbicide residues in soil， sediment， and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Zhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc   +1 more source

[Simultaneous determination of 50 veterinary drug residues in fish， shrimp， and crabs using a composite purification column-ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Deng HD, Ji XF, Xiao YP, Xia Q, Yang H.
europepmc   +1 more source