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A Short-Term Follow-Up Study of Left Ventricular Epicardial Lead Placement for Cardiac Resynchronization Therapy

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A Short-Term Follow-Up Study of Left Ventricular Epicardial ...

Response of Sodium Azide Induced Rice Mutants to BaMV

中华医学会第十次全国超声医学学术会议

作者： Ye Zhang~a,Zhi-an Li~a,Yihua He~a,Yang Ya~a,Haibo Zhang~b,Xu Meng~b a department of Echo b department of Cardiac Surgery,beijing Anzhen Hospital, capital Medical University,beijing,100029,china

Background:Cardiac resynchronization therapy(CRT) improves symptoms,quality of life,and ejection fraction in selected patients with heart failure(HF) and cardiac *** has been documented that locating the left ventricular(LV) lead site at the longest contraction delay segment has the optimal CRT benefit. Echocardiography plays an evolving and important role in the care of heart failure patients treated with CRT.

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Response of Sodium Azide Induced Rice Mutants to BaMV

A NEW TECHNIQUE—ELECTROMAGNETIC CENTRIFUGAL CASTING PROCESS

中国植物学会七十五周年年会

作者： Fan Shuguo (department of chemistry and Life Science,Chuxiong normal University,Chuxiong 675000)

Indirect ELISA,dot blot,and Northern blot have been done in order for investigation of sodium azide induced rice mutants’ response to Bamboo mosaic virus (BaMV) multiplication and *** mutants have variable responses ...

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Acta Metallurgica Sinica(English Letters) 1993年第11期6卷 349-358页

作者： GE Yunlong YANG Yuansheng JIAO Yuning HU Zhuangqi Institute of Metal Research,Academia Sinica,Shenyang,chinaGAO Yunyan JIA Guanglin Northeast University of Technology,Shenyang,china associate professor,Institute of Low Energy Nuclear Physics,beijing normal University,beijing,100875,china

A new technique of centrifugal casting under electromagnetic field was firstly proposed and *** a heat resisting alloy steel 25Cr20Ni and an Al-Cu alloy as examples,products,though their length,diameter and wall thickness are varied,re- vealed so superior macrostructures that the mechanical properties are much improved in comparison with conventional centrifugal casting.

关键词： electromagnetic field centrifugal casing heat resisting steel Al-Cu alloy

Distinguishing the authenticity of anti-freeze liquid and brake fluid by terahertz time-domain spectra technology

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Distinguishing the authenticity of anti-freeze liquid and br...

Assignment of the non-exchangeable proton resonances and conformational analysis of oligonucleotide DNA d(TTGGGGTT)by twodimensional nuclear magnetic resonance methods

中国光学学会2010年光学大会

作者： ZHU Shou-ming 1,ZHAO Kun 1,2,4.TIAN Lu 1,ZHAO Song-qing 1,ZHAO Hui 1,BAO Ri-ma 1,MIAO Qing 1,ZHOU Qing-li 3,SHI Yu-lei 3,ZHAO Dong-mei 3,ZHANG Cun-lin 3 1.School of Science,china University of Petroleum,beijing 10224.,china 2.State Key Laboratory of Heavy Oil Processing,china University of Petroleum,beijing 10224.,china 3.beijing Key Laboratory for Terahertz Spectroscopy and Imaging,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,department of Physics,capital normal University,beijing 10004.,china 4.International Center for Materials Physics,Chinese Academy of Sciences,Shenyang 110016,china.

Terahertz time-domain spectra （THz-TDS） technology is a new kind of coherent far infrared spectroscopy measurement technique based on the femtosecond *** optical property and spectroscopy of methanol,anti-freeze liquid and brake fluid are studied based on the THz-TDS in the terahertz *** whether methanol exists in anti-freeze liquid or brake fluid by Using THz-TDS technology is crucial to its *** room temperature,the time-domain spectra and the absorption spectrum in the 0.2-2.5 THz region of these samples are obtained in the environment full of *** Results show that methanol,anti-freeze liquid and brake fluid have significant different absorption spectra in this wave *** absorption peaks of methanol are located at 0.72 THz and 0.35 THz and the main absorption peaks of anti-freeze liquid and brake fluid are located at 0.62 ***-TDS Technology can distinguish minor differences in structure and can be applied to physical testing and *** provides a new experimental method for the identification of the organic chemical products and the study of spectrum more wide.

关键词： terahertz methanol anti-freeze liquid brake fluid

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Chinese Journal of chemistry 1990年第3期8卷 246-250页

作者： DONG,Yan-Hong TANG,Wen-Xia DAI,An-Bang Coordination chemistry Institute,Nanjing University,Nanjing 210008WU,Jia-Zhen beijing Biophysics Institute,Academia Sinica,beijing 100080van BOOM,J.H. REEDIJK,J. STRUIK,A.F. department of chemistry,Gorlaeus Laboratories,Leiden University,Leiden,The Netherlands Coordination chemistry Institute Nanjing University Nanjing 210008 beijing Biophysics Institute Academia Sinica Beijing 100080 department of chemistry Gorlaeus Laboratories Leiden University Leiden The Netherlands

Two-dimensional NMR study on the single-stranded octadeoxynucleotide,d(TT- GGGGTT)is *** of the base protons,the H1′,H2′ and H2″ protons were made by two-dimensional Nuclear Overhauser Enhancement Spectroscopy(NOESY)and two-dimensional homonuclear J-correlated Spectroscopy(COSY).The result indicates that the overall structure of the single-stranded d(TTGGGGTT)is a right-handed B-type helix.

关键词： Assignment of the non-exchangeable proton resonances and conformational analysis of oligonucleotide DNA d DNA

Three dimensional passive underwater target motion analysis using correlated data fusion

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声学技术 2004年第S1期23卷 43-48页

作者： HU Youfeng, JIAO Bingli (department of Electrics, Peking University, beijing 100871, china) department of Electrics Peking University Beijing 100871 China

In this paper a new method of passive underwater TMA (target motion analysis) using data fusion is presented. The findings of this research are based on an understanding that there is a powerful sonar system that consists of many types of sonar but with one own-ship, and that different target parameter measurements can be obtained simultaneously. For the analysis 3 data measurements, passive bearing, elevation and multipath time-delay, are used, which are divided into two groups: a group with estimates of two preliminary target parameter obtained by dealing with each group measurement independently, and a group where correlated estimates are sent to a fusion center where the correlation between two data groups are considered so that the passive underwater TMA is realized. Simulation results show that curves of parameter estimation errors obtained by using the data fusion have fast convergence and the estimation accuracy is noticeably improved. The TMA algorithm presented is verified and is of practical significance because it is easy to be realized in one ship.

关键词： passive localization target motion analysis (TMA) data fusion

Modeling diameter distribution of the broadleaved-Korean pine mixed forest on Changbai Mountains of china

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Science china(Technological Sciences) 2006年第z1期49卷 177-188页

作者： WANG Shunzhong, DAI Limin, LIU Guohua, YUAN Jianqiong, ZHANG Hengmin & WANG Qingli Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, china Graduate University of Chinese Academy of Sciences, beijing 100039, china State Key Lab of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, beijing 100085, china Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China Graduate University of Chinese Academy of Sciences Beijing 100039 China State Key Lab of Systems Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

The broadleaved-Korean pine mixed forest is a native vegetation in the Changbai Mountains, northeast china. The probability density functions including the normal, negative exponential, Weibull and finite mixture distribution, were used to describe the diameter distributions of the species groups and entire forest stand. There is a strong correlation between parameters and mean DBH except the shape parameters in the mixture distribution. The diameter classes of species and entire forest stand showed not negative exponential but normal and "S" distribution. The mixture function was better than normal and Weibull to describe the model distribution. The location parameter had an effect on the estimated frequency in the first diameter class, when the estimated location parameter was bigger than the lower limit of the first diameter class.

关键词： broadleaved-Korean pine mixed forest, diameter distribution, finite mixture distribution.

Cytosolic calcium oscillations in submandibular gland cells

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Acta Pharmacologica Sinica 2006年第7期27卷 843-847页

作者： Li SU Chun-yan MA Yan-dong ZHOU Yan-hong JIA Zong-jie CUI~2 Institute of Cell Biology,beijing normal University,beijing 100875,china InstituteofCellBiology BeijingNormalUniversityBeijing100875China

Calcium oscillations can,by default,encode diverse and specific signals by differ-ent modes of *** modulation is illustrated by the activation ofcalcium/calmodulin-dependent protein kinase Ⅱ at unit Hz,and of calcineurin at 10mHz frequencies,*** submandibular gland secretory axis is charac-terized by both potassium and osmolarity gradients from the luminal side of thesecretory *** gradients may play significant physiological roles throughthe feedback modulation of cholinergic *** potassium transformsplateau calcium increases induced by cholinergic stimulation of the submandibu-lar acinar cells into oscillatory calcium *** ductal cells may have simi-lar mechanisms of feedback modulation both by high potassium and by *** feedback mechanisms could modulate the decision-making pro-cess for determining which secretory products are selectively released after nervestimulation.

关键词： submandibular gland secretory axis calcium oscillation

THE M/M/c QUEUE WITH PH SYNCHRONOUS VACATIONS

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Systems Science and Mathematical Sciences 2000年第1期13卷 7-16页

作者： TIAN Nai shuo (department of Mathematics, Yanshan University, Qinhuangdao 066004.china) LI Quan lin (National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, beijing 100080, china)

***,singleserverqueueswithvacationshavebeenstudiedextensivelyfromtheirowntheoreticalinterestaswellastheirapplicationstomanyengineeringsystemssuchascomputers,***/G/lqueueingsystemswit... 详细信息

***,singleserverqueueswithvacationshavebeenstudiedextensivelyfromtheirowntheoreticalinterestaswellastheirapplicationstomanyengineeringsystemssuchascomputers,***/G/lqueueingsystemswit...

关键词： M/M/c queue synchronous vacation phase type distribution quasi birth and death process matrix-geometric solution.