Objective To assess feasibility, sensitivity of transesophageal echocardiography ( TEE) in visualizing coronary artery segments and in measuring their coronary flow velocity ( CFV). 目的为评价经食道超声心动图(TEE)显示冠状动脉形态和血液频谱的可行性和敏感性。
Use customer current value ( CCV), customer future value ( CFV) and the level of customer loyalty ( CL) as dimensionality to design the new three-dimensional customer segmentation. 应用客户当前价值(CCV)、客户预期价值(CFV)和客户忠诚度(CL)作为细分维度,构建一种三维的客户细分法,并提出相应的客户保持策略。
Two CFV are applied along the main channel and the sampling one in the system to assure the fixed ratio of the volume of the analyzed sample to the volume of total diluted emission. 系统分别在主通道和采样通道上采用两个超临界流文丘里管流量计,使取样分析用的样气与总的稀释排气成固定的比例,即保证等比例采样。
CFV reduces the workload feature vector dimensions, and reduces the complexity of matching. CFV能减少负载特征向量维数,降低匹配复杂度。