Objective:To compare the prognostic significance of Chronotropic function(85%of maximal age-predicted heart rate,heart rate reserve),exercise myocardial perfusion tomography(MPI), post-exercise end-systolic volume(ESV)and left ventricular ejection fraction(EF)in patients with known or suspected coronary artery disease(CAD),probe into the usefulness of risk stratification by multivariate analyses.
目的比较心率变时性功能(次极量心率、心率储备)、运动SPECT心肌灌注显像(MPI)结果、左心室收缩末容积(ESV)和左心室射血分数(EF)各自对疑诊冠心病(CAD)患者的预后价值;探讨多因素结合在患者危险分层中的作用。
Removal of water vapor from 1,1-difluoroethane by membrane;
膜法脱除1,1-二氟乙烷气体中的水蒸气
On the basis of the quantum chemistry theory and the transition state theory, the degradation reactions of 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1-difluoroethane (HFC-152a) in the atmosphere are investigated theoretically to reveal their mechanism and kinetics properties.
本文采用量子化学方法研究了目前工业上使用最广泛的两种氟利昂替代物,HFC-134a(1,1,1,2-四氟乙烷,CH_2FCF_3)和HFC-152a(1,1-二氟乙烷,CH_3CHF_2)在大气中化学转化的微观机制。
Research of EF-Tu Multiple Protein Complex in Escherichia Coli;
大肠杆菌EF-Tu多蛋白复合体的研究
A Study on the Integration of EF Group in M & A Process;
EF集团公司并购中的整合过程研究
An algorithm to Achieve queue fairness;
实现队列公平性的EF-RED算法
Degradation of Phenol by EF Method and Its Analysis by HPLC;
EF法降解苯酚及中间产物的高效液相色谱分析
Analysis of EST Profile Induced by SMV and SR-EF Gene in Soybean;
大豆SMV诱导的EST表达谱分析及SR-EF基因研究
Immune Protection Research of Muramidase-released Protein, Extracellular Factor Protein and GroEL from Streptococcus Suis Serotype 2;
猪链球菌2型MRP、EF和GroEL免疫保护力的研究
The Clinical Non-invasive Methods Diagnosis Assessment of the Diastolic Heart Failure with EF>50%
EF>50%舒张性心力衰竭的临床无创诊断评估
Cloning and Sequencing of tuf Gene for Elongation Factor Tu from Streptococcus Mutans;
变形链球菌延伸因子（EF-Tu）tuf基因的克隆及序列分析
Cloning、Expression Three Virulence Related Proteins of Streptococcus Suis Type 2 and Preparation Monoclonal Antibody Against MRP and EF;
SS2三种毒力相关蛋白的克隆、表达及MRP与EF单克隆抗体的制备
Cloning of Elongation Factor-1A (EF-1A) Gene cDNA and Preliminary Function Analysis in Musa Acuminata;
香蕉延长因子1A（EF-1A）基因全长cDNA的克隆及其特征分析
Effect of EF-1A2 Antisense Oligonucleotide on the Proliferation and Apoptosis in SKOV3 Cells of Ovarian Carcinoma;
EF-1A2反义寡核苷酸对卵巢癌SKOV3细胞增殖和凋亡的影响
Correlation between SNP of TaCCaMK Gene EF Hands Domain and Drought and Flood Tolerance in Wheat;
小麦TaCCaMK基因EF手性结构域的SNP及其与抗旱、耐涝性的关系
Study on the Phylogeny of Seven Genera of Diaspidinae Based on EF-1a Sequences;
基于EF-1a序列的盾蚧亚科7属的分子系统学研究
Study on the phylogeny of seven genera of Diaspidinae based on EF-1a sequences
基于核基因EF-1a序列的盾蚧亚科7个属的系统发育
Decoupling Interactions between EF-hands of Recoverin and Ca~(2+):Steered Molecular Dynamics Simulation
恢复蛋白EF-hand与钙离子去耦合作用的拉伸分子动力学模拟
Expression and purification of the extracellular factor from Streptococcus suis type 2 of human origin strain ZYH24 and preparation of its monoclonal antibodies
SS2人源分离株ZYH24 EF的表达纯化及其单克隆抗体的制备
" Environmental testing for electric and electronic products--Part 2: Tests method Test Ef: Impact,pendulum hammer"
GB/T2423.46-1997电工电子产品环境试验第2部分：试验方法试验ef：撞击摆锤
Fine Mapping of a Dominant Earliness Gene Ef-s in Rice and Some Research of a Novel Transcription Factor MYB;
水稻显性早熟基因Ef-s的精细定位及一个新的MYB转录因子的研究