【摘 要】
：
This paper has an objective to show a developed quantitative criterion, based in two mathematical variables that explicit the deviation degree of a normal situa
论文部分内容阅读
This paper has an objective to show a developed quantitative criterion, based in two mathematical variables that explicit the deviation degree of a normal situation, applying simultaneously data from terminal impedances and frequency response. Based in more than 100-measured equipment, of different applications (step-up transformer, transmission transformer, etc.,), for a period of 10 years, the work presents some examples of practical application of this methodology in Brazilian Electrical System.
其他文献
Background Mechanical asynchrony is an important parameter in predicting the response to cardiac resynchronization therapy,but detailed knowledge about cardiac
Short peptides based on the tripeptides,Leu-Arg-Pro and Leu-Lys-Pro,were synthesized by microwaveassisted solid-phase synthesis method,in order to make a search
对TC4-DT钛合金在不同应力比下的疲劳裂纹扩展行为进行了研究,绘制出疲劳裂纹扩展速率和应力强度因子幅值ΔK之间的关系曲线,用SEM对断口形貌进行了观测。实验结果表明,随着
基于Powell寻优反演分析的方法,利用施工过程中上一施工工况的变形监测值反演下一工况的土体m值、支护结构刚度及支撑刚度,进而对施工过程中支护结构变形量的准确预报,实现对
Objective To review the recent developments in the mechanisms of glucocorticoids induced osteonecrosis of femoral head (ONFH) and introduce a new theory of ONFH
Background The success and complication rates of atrial fibrillation (AF) ablation may be related to regional differences in left atrial (LA) wall thickness.The
While the quadriceps muscles of human body are quite important to the daily activities of knee joints,the determination of quadriceps forces poses significant c
为满足复杂靶标背景下激光光斑形心的高精度定位要求,提出了一种基于几何特征约束残差修剪的定位方法。首先通过分析成像特点提取激光光斑;然后在几何特征约束下对残差边缘进行二次修剪,优化边缘;最后利用最小二乘拟合法得到激光光斑形心的精确定位,并将其应用于火炮的重要静态参数——弯曲度测量。实验结果表明,该方法具有较强的稳定性,定位精度高且实时性好,与传统的定位方法相比,复杂靶标上激光光斑的水平和竖直定位偏差
Background The percutaneous transcatheter closure of secundum atrial septal defect (ASD) is increasingly a widespread alternative to surgical closure.The aim of