Results 111 to 120 of about 143,545 (149)

稻鱼、鱼轮作的初步试验

, 1985
<正> 1982—1983年,在倪达书教授的指导下,我们在湖北省广济县花桥公社罗皮塘大队一片19.3亩的低洼田里进行了稻鱼、鱼轮作的试验。这片低洼田历年来只种一季晚稻,其余时间未作任何利用。1982年 ...
胡锦尧, 汪建国
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[Analysis of the global registration status of clinical trials for artificial intelligence medical device]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lu Y, Chen J, Zhang T, Yan S, Xu D, Ouyang Z.   +5 more
europepmc   +1 more source

[The application value of video head impulse test, caloric test and dizziness handicap inventory in the diagnosis of acoustic neuroma]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2022
Zou S, Mao Q, Peng A, Yang T, Ding Y, Zhu J, Zhang K, Wang Q.   +7 more
europepmc   +1 more source

[Feasibility study of a surgical planning protocol for orthognathic surgery utilizing similarity retrieval from database: A randomized controlled trial]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Yu L, Wu L, Liu X, Li Z.
europepmc   +1 more source

[Value of exercise challenge testing in the diagnosis of cough variant asthma in children]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Zhuang DL, Feng Y, Shang YX.
europepmc   +1 more source

[Comparison of Epsilometer test and agar dilution method in detecting the sensitivity of Helicobacter pylori to metronidazole]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2023
Tian XL, Song ZQ, Suo BJ, Zhou LY, Li CL, Zhang YX.   +5 more
europepmc   +1 more source

[Expert consensus on clinical randomized controlled trial design and evaluation methods for bone grafting or substitute materials in alveolar bone defects]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Liao X, Xue Y, Zheng X, Wang E, Pan J, Zou D, Zhao J, Han B, Liu C, Hua H, Liang X, Shang S, Wang W, Liu S, Wang H, Wang P, Feng B, Ju J, Zhang L, Hu K.   +19 more
europepmc   +1 more source

[Current situation and reflection of clinical trials in the field of burn medicine in China]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2022
Wu J, Chen YZ, Wang Y.
europepmc   +1 more source

Molecular epidemiology of clinical isolation of carbapenem-resistant Enterobacterales and application of carbapenemase inhibitor enhancement test. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023
Li H, Zhong Y, Yan Q, Liu W, Liang X.
europepmc   +1 more source

高焓流动试验装备与测试技术

, 2012
本文叙述了高焓流动试验装备和测试技术的发展背景，工程需求和研究目的，分析了发展高焓流动试验装备依据的气动原理与关键技术，并重点讨论了基于四种驱动方法发展的高焓风洞常规加热型高焓风洞，加热轻气体驱动激波风洞，自由活塞驱动激波风洞和爆轰驱动激波风洞。通过回顾不同类型高焓流动试验装备的发展和介绍代表性高焓风洞的特点，评述了这些高焓风洞采用的主要关键技术及其长处与不足。由于高焓流动具有高温热化学反应的特征，工程需求还推动了一类高温气体测量技术的发展。本文简要介绍了两种常规测量技术气动热测量技术和气动力天平技术 ...
姜宗林, 俞鸿儒
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