This is due to the incompatibility of helium with the matrix atoms . but on the whole , the trend of helium distri bution by the determination was similar to that by calculation . and the depth which helium - 3 could reach in both samples were 350 microns and 500 microns respectively 在金属铝中氦行为的理论研究中,基于密度泛函理论、广义梯度近似、赝势平面波方法,计算了单个he原子在金属铝中的各种能量数据,包括各种he原子-缺陷的形成能、迁移能、束缚能以及离解能数据。
After analyzing the switching characteristic of mosfet , the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss , then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice , then the least square method is adopted to fit simulation curves to calculate corresponding energy data 在电子线路仿真软件pspice中进行了mosfet开关电路以及典型dc dc转换线路仿真测试,针对不同频段的测试结果,采用最小二乘拟合法对仿真曲线进行拟合,计算出相应的能量数据,最后综合仿真结果确定出减小器件开关损耗,提高dc0c转换线路效率的器件输出电容cob优化曲线。
能量: energy; amount of energy数据: data; record; information大量数据 海量数据: massdata标量数据: scalar data测量数据: measured data; measurement data; measuring data; metric data; metrical data; o erveddata; observed data; survey data测量数据库: measurement data base; measurement database大量数据: large amounts of data; large sets of data; ma data; mass data; mass of data; massive data定量数据: quantitative data度量数据: measurement data度量数据库: metrics database多变量数据: multivariate data海量数据: a huge quantity of data; huge quantities of data; mass data话务量数据: traffic data计量数据: continuous data; measurement data库存量数据: inventory data流量数据: data on flows实变量数据: real variable data矢量数据: vector data通信量数据: traffic data微剂量数据: microdosimetric data增量数据: incremental data变量数据类型: data type of a variable测量数据处理: measurement and data processing测扫测量数据: side-scan measurements纯量数据类型: scalar data type