oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 92 )

2018 ( 5998 )

2017 ( 5752 )

2016 ( 5799 )

Custom range...

Search Results: 1 - 10 of 308037 matches for " br>朱培 "
All listed articles are free for downloading (OA Articles)
Page 1 /308037
Display every page Item
Mechanism of relation among heart meridian, referred cardiac pain and heart
Mechanism of relation among heart meridian,referred cardiac pain and heart

RONG Peijing,ZHU Bing,<br>荣,
中国科学C辑(英文版) , 2002,
Abstract: It has been demonstrated that an important clinical phenomenon often associated with visceral diseases is the referred pain to somatic structures, especially to the body area of homo-segmental innervation. It is interesting that the somatic foci of cardiac referred pain were often and mainly distributed along the heart meridian (HM), whereas the acupoints of HM have been applied to treat cardiac disease since ancient times. The purpose of this study was to investigate the neural relationship between the cardiac referred pain and the heart meridian. Fluorescent triple-labeling was injected into the pericardium, some acupoints of HM and lung meridian (LM, for control). The responses of the left cardiac sympathetic nerve and of the EMG in left HM and LM were electrophysiologically studied, when the electrical stimuli were applied to the acupoints of left HM and to the left cardiac sympathetic nerve. More double-labeled neurons in HM-heart, not in LM-heart, were observed in the ipsilateral dorsal root ganglia of the spinal segments C8-T3. Electric stimulation of the acupoints of left HM was able to elicit more responses of left cardiac sympathetic nerve than that of the LM-acupoints. Electric stimulation of the left cardiac sympathetic nerve resulted in stronger activities of EMG-response in the acupoints of left HM than in LM-acupoints. We conclude that double-labeling study has provided direct evidence for the existence of dichotomizing afferent fibers that supply both the pericardium and HM. Electrophysio-logical results show that HM is more closely related functionally to heart. These findings provide a possible morphological and physiological explanation for the referred cardiac pain and HM-heart interrelation.
苗勒氏管囊肿蒂扭转并发膀胱癌1例
A case of Mullerian duct cyst torsion combined with bladder cancer

,任青玲<br>ZHU Fangpei, REN Qingling
- , 2016, DOI: 10.11817/j.issn.1672-7347.2016.06.016
Abstract:
四旋翼飞行器自适应滑模控制方法研究
Adaptive Sliding Mode Controller for Quad Rotor Aircraft
 [PDF]

, 王立峰
Dynamical Systems and Control (DSC) , 2015, DOI: 10.12677/DSC.2015.41002
Abstract:
四旋翼飞行器的模型参数不确定性及外界扰动,使控制系统的设计具有挑战性。本文提出了一种自适应滑模控制方法,应用于四旋翼控制系统的快回路和慢回路中实现航点轨迹跟踪。在滑模控制保证系统的鲁棒性前提下,引入自适应控制单元来补偿模型参数不确定性和外界扰动,并用Lyapunov理论证明了系统的渐进稳定。仿真结果表明该方法能够良好的跟踪参考高度和轨迹。
It is a challenge to design the controller for quadrotor aerial robot because of its uncertainty of model parameter and extern disturbance. The paper presents an adaptive sliding mode controller which is applied to the slow and fast loop control of quadrotor for waypoints trajactory tracking. On the premise of sliding mode control to ensure the control robustness, the adaptive control variables are used to compensate the parameter uncertainty and extern disturbance. Base on the Lyapunov theory, the global asymptotic stability is validated. It behaves perfectly at the reference altitude and trajectory track in simulation.
Roles of phosphatases in pathogen infection: a review
磷酸酶在病原菌侵染寄主中的作用

Pei Zhu,Xinqiang Li,Zhenlun Li,<br>,李鑫强,李振轮
生物工程学报 , 2012,
Abstract: Phosphatases play a key role not only in cell physiological functions of an organism, but also in host-pathogen interactions. Many studies demonstrated that some Gram-negative pathogenic bacteria could evade host immunity and promote pathogenicity by injecting phosphatases into host cells through type III secretion system. However, there were few reports about pathogenic fungi evading the immunity of hosts. Our researches indicated that the entomogenic fungus Metarhizium anisopliae could dephosphorylate the signal transduction substance of locust humoral immunity specifically in vitro by secreting extracellular protein tyrosine phosphatase, which implied that the fungus might interfere with the immune defense of locust. To provide reference for further studies of the functions of phosphatases, we reviewed the types of phosphatases and their roles in pathogen infection.
On Policy Related to Sci-tech Journals Charging Publication Fee on Writers and Our Suggestions
科技期刊收取版面费相关政策与建议

ZHU XiaoDong,SONG PeiYuan,ZENG JianXun,<br>晓东,,曾建勋
中国科技期刊研究 , 2007,
Abstract: 对科技期刊版面费收取的原因、作用、有关政策依据,出现的问题进行了详尽的论述,指出当前收取版面费之所以引起关注,并产生了不同看法,其主要原因是缺少对收取版面费的专项法规。根据相关政策的分析并结合科技期刊的特性,认为科技期刊收取版面费合情合理,是科技期刊稳步发展的需要,及时出台相关法规和收费方式,使其合法化并有章可循,是顺应时代潮流的科学举措。对版面费收取的范围、数额、用途、具体操作规范提出了观点和建议。
Analysis on Current Situation of China''s Sci-tech Journals and Present Management Policy
我国科技期刊现状及管理政策分析

ZHU XiaoDong,SONG PeiYuna,ZENG JianXun,<br>晓东,,曾建勋
中国科技期刊研究 , 2006,
Abstract: 从数量、质量、学术水平和与国际合作等方面介绍了我国科技期刊的现状。通过对新中国成立以来颁发的112种科技期刊管理政策出台背景及功能作用的分析研究,肯定了其在各个历史阶段的作用并结合当前的需求提出了需制定创新政策的意见。
Criterion for Appraising Scientific and Technical Journals
科学技术期刊评估标准

ZHU XiaoDong,SONG PeiYuan,ZEN JianXun,<br>晓东,,曾建勋
中国科技期刊研究 , 2007,
Abstract: 科学技术期刊评估标准在20世纪70年代末国家科委着手研究制订。为了能准确反映每种科技期刊的共性及特色,首先对科技期刊进行了分类研究,确定科技期刊划分为学术、技术、科学普及、指导、检索五大类,并对五大类分别制订了各类的质量要求,在此基础上制定了五大类的评估标准。评估标准为便于操作,采用了百分制的原则。80年代末经各省、自治区、直辖市及各部委对所属期刊的评选优秀期刊实践后,加以修订,于1992年国家科委、中宣部、新闻出版署用此标准联合举办了首届全国优秀科技期刊评比。此后,经过进一步完善,国家科委于1994年正式颁发《关于颁布五大类科技期刊质量要求及评估标准的通知》(国科发信字1994]148号),要求科技期刊的管理、审读、期刊质量的白检白查、评选优秀期刊等工作,按此通知执行。
Discussion on Managing China'' Sci-tech Journals by Classifying their Quality and Subjects
对我国科技期刊实施分级管理的探讨

ZHU XiaoDong,SONG PeiYuan,ZENG JianXun,<br>晓东,,曾建勋
中国科技期刊研究 , 2008,
Abstract: 科技期刊分级并针对性进行管理是一项巨大的系统工程。经过二十多年的努力,现条件已具备。实施分级管理首先要对科技期刊进行类型划分,之后要制定各类的期刊质量要求和评价体系。根据我国科技期刊现状,划分为七大类较为科学。分级模式分为两种:第一种是在七大类的基础上按类对期刊进行分级;第二种是在七大类基础上按类再按学科对期刊进行分级。首先采用第一种模式。通过第一种模式的实践,积累经验,完善评价体系和质量标准,最终过渡到第二种模式。分级操作方法按百分制。
Development of Chinese Sci-tech Journals in Past 60 Years and Prospect
新中国科技期刊60年发展回顾与展望

ZHU XiaoDong,SONG PeiYuan,ZENG JianXun,<br>晓东,,曾建勋
中国科技期刊研究 , 2009,
Abstract: 分为五个阶段回顾了我国科技期刊建国以来发展历程和取得的丰硕成果.在每一阶段,分别介绍了学术类、技术类、指导类、检索类、科普类期刊发展状况.对全译本期刊、高校自然科学版学报、外文版本特殊类型期刊的发展历程作了回顾.各阶段分为两部分介绍,一是出台的管理政策和法规,其保证了科技期刊健康有序的发展,二是期刊发展的具体过程和各类期刊不同阶段的数量、功能、发挥的作用.最后在描绘我国科技期刊现状的前提下,对今后科技期刊的发展和繁荣,充满信心地加以展望.
Experimental study on removal dioxide sulfur by using concentrated brine
氧化镁强化浓海水吸收低浓度二氧化硫的实验研究

Zhu Peiyi,Wang Haizeng,Guo Lugang,<br>,王海增,郭鲁钢
环境工程学报 , 2009,
Abstract: 研究了添加氧化镁强化后浓海水对低浓度二氧化硫的吸收效果。利用鼓泡吸收装置考察了不同氧化镁投加量、气体流速和吸收液温度对二氧化硫吸收效果的影响。结果表明,氧化镁可以极大地提高吸收液的脱硫效率。在室温,氧化镁投加量为0.5 g/L时,吸收体系对二氧化硫的吸收效果最好,吸收容量达到1 901.38 mg/L,是普通海水脱硫和未加添加剂的3~6倍。
Page 1 /308037
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.