, 2016 对不同锆锡比的Pb_(0.97)La_(0.02)(Zr_(0.12+x)Sn_(0.7-x)Ti_(0.18))O_3铁电陶瓷的铁电和相变行为进行了系统的研究,阐明了组成和温度对PLZST铁电陶瓷的相变效应的影响规律.研究结果表明:PLZST铁电陶瓷均呈现典型的铁电体电滞回线.随着温度的升高,PLZST12/70/18,PLZST52/30/18,PLZST62/20/18发生铁电-顺电相变,PLZST22/60/18,PLZST32/50/18,PLZST42/40/18为铁电-反铁电-顺电相变.
曾涛 +4 more
core
[Clinical analysis of nusinersen for spinal muscular atrophy types 2 and 3 in children]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiDuan HL +6 more
europepmc +1 more source
, 2018 研究调制比对多层类金刚石(Diamond-like carbon,DLC)涂层摩擦及腐蚀行为的影响。采用等离子体增强化学气相沉积技术成功制备了不同调制比的多层DLC涂层。利用扫描电子显微镜、原子力显微镜、划痕仪、摩擦磨损试验机及电化学工作站等表征手段评价了不同调制比多层DLC涂层的结构特点、力学性能、摩擦学性能以及耐腐蚀性能。结果表明:所制备涂层表面光滑、结构致密、膜基界面结合良好。其中1∶1为多层DLC涂层最佳调制比,该调制比涂层的硬度、弹性模量和抗裂纹萌生的临界载荷最大。同时,摩擦试验表明1 ...
王立平 +5 more
core
[Recent advances in epidemiology, prevention and treatment of hepatitis C in China]. [PDF]
Zhonghua Gan Zang Bing Za ZhiYu JJ +7 more
europepmc +1 more source
, 1994 本文报导了围养在湖北天鹅洲故道的三头江豚（Ｎｅｏｐｈｏｃａｅｎａｐｈｏｃａｅｎｏｉｄｅｓ）的四种斗争行为：威胁、顺从、追逐、格斗，并进行它们的比较研究。结果显示威胁和顺从是江豚最主要的斗争行为。另外，我们推测江豚有系列式序位的趋势。新的个体要加入饲养群体时 ...
杨健,陈佩薰
core
[TACE-HAIC versus HAIC combined with targeted immunotherapy for unresectable hepatocellular carcinoma: a propensity score-matched retrospective controlled study]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiu C +5 more
europepmc +1 more source
[Early resting-state functional connectivity characteristics in preterm and full-term infants: an exploratory study using functional near-infrared spectroscopy]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWu Y +9 more
europepmc +1 more source
[Plasma metabolomics combined with machine learning for classifying ischemic stroke subtypes and predicting the etiology of cryptogenic stroke]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZi Y, Liu Z, Deng Z.
europepmc +1 more source
[Feasibility and clinical value of a prostate cancer screening model based on biparametric magnetic resonance imaging combined with prostate-specific antigen in a Chinese population]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanRuan M +5 more
europepmc +1 more source
[Quantitative susceptibility reconstruction guided by a multi-scale T1-weighted image attention mechanism]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLi P +5 more
europepmc +1 more source