说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> QRS离散度
1)  QRS dispersion
QRS离散度
1.
Effects of reperfusion therapy on QRS dispersion in acute myocardial infarction;
再灌注治疗对急性心肌梗死患者QRS离散度的影响
2.
Objective:To determine whether QRS dispersion can be used to detect patients with risk on life\|threatening ventricular arrhythmias.
目的 :探讨 QRS离散度 (QRSd)对致命性室性心律失常的预测价值。
2)  QRS dissipativity
QRS耗散性
3)  QRS duration
QRS宽度
1.
Comparison on QRS duration and cardiac function during Multi-site pacing in the right ventricular;
右室多部位起搏的QRS宽度与心功能的对比研究
2.
The effects of right ventricular bifocal pacing on cardiac function and QRS duration;
右室单双部位起搏对心功能和QRS宽度的影响
3.
Objective To assess the acute hemodynamic effects of five different pacing modes in patients with cardiac function NYHAclass Ⅰ to Ⅱ without bundle branch block (BBB) and to compare their effects on QRS duration.
目的 在无束支阻滞、心功能Ⅰ~Ⅱ级患者中,比较5种不同起搏模式的血流动力学效应及其对QRS宽度的影响。
4)  QRS wave
QRS
1.
A linear analysis and pattern recognition method to detect and analyze dynamic cardiogram QRS wave are applied i this paper and an effective method for HRW analysis system is introduced.
采用线性分析和模糊模式识别理论,对动态心电图QRS波形进行检测和分析的算法进行了语法描述,并在此基础上给出了心率失常分析系统实现的具体方法。
5)  Discrete degree
离散度
1.
Stability of spatial grid structure based on variable discrete degree of imperfection distribution;
基于缺陷分布变离散度空间网格的结构稳定性
2.
It is shown that discrete degree can be taken as the criterion of rock-mass stability.
在演化模型的基础上,进行了模拟实验,且运用R/S分析法对结果进行分析,得到了以离散度作为岩体稳定性的标准。
3.
Discrete degree of splitting tensile strength with steel wire is less than that of splitting tensile strength with steel bearing plate;Discrete degree of splitting tensile strength is more smaller when the tensile strength become larger;When diameter of specimens is same and its thickness is different,the discrete degree of splitting tensile st.
采用钢丝垫条形式的大理岩劈裂抗拉强度离散度小于采用钢平板形式的离散度;大理岩劈裂抗拉强度值越高,其离散度越小;采用钢丝垫条形式的劈裂抗拉强度在总趋势上随厚度的增加先增加后减小;而采用平板形式的劈裂抗拉强度随厚度的增加而减小。
6)  dispersed degree
离散度
1.
It has close relation between broken pulling force of wire rope and tensile force value dispersed degree of steel wire for rope.
对国内 3家工厂和日本产 72A盘条进行试验并分析 ,钢丝绳的整绳破断拉力值和制绳钢丝拉力值的离散度有密切关系。
2.
For this reason,the article improves ID3 algorithm in terms of dispersed degree,through the contrast experiment of two kinds of algorithms,proves that utilizes the algorithm after improving to excavate the categorized rule,not only has i.
为此,从离散度的角度,对ID3算法进行改进,通过2种算法的对比实验,证明利用改进后的算法挖掘分类规则,不仅提高了分类的正确率,而且非常高效。
补充资料:离散时间周期序列的离散傅里叶级数表示
       (1)
  式中χ((n))N为一离散时间周期序列,其周期为N点,即
  式中r为任意整数。X((k))N为频域周期序列,其周期亦为N点,即X(k)=X(k+lN),式中l为任意整数。
  
  从式(1)可导出已知X((k))N求χ((n))N的关系
   (2)
  式(1)和式(2)称为离散傅里叶级数对。
  
  当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N,如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条