1) the curve-fitting method
电子适线法
2) curve fitting method
适线法
1.
Ac- cording to the regulations of design flood frequency computation for water resources and hydropower pro- jects,a curve fitting method of design flood frequency was presented by using the particle swarm optimization and applying the WLS,ABS,and WLS.
通过实例验证,认为粒子群算法进行设计洪水频率曲线参数估计优于传统的经验适线法。
2.
In order to calculate the volume of water exchange between groundwater and surface water in a lake area, the curve fitting method and Monte-Carlo method were used for fitting the probability distribution of vertical hydraulic conductivity based on the data from in situ measurement, and the reliability of measured data was analyzed.
为了确定某湖区湖水与地下水的交换水量,根据湖底地层渗透系数的野外现场测定值,用适线法和蒙特卡罗法对研究区地层垂向渗透系数的概率分布进行拟合,在此基础上,分析了渗透系数试验测定值的可靠性。
3.
A discussion is made on the theoretical basis of the curve fitting method and eleven formulas for calculation of the empirical frequency.
阐述适线法的理论基础并简介 1 0个经验频率计算公式 。
3) curve-fitting method
适线法
1.
Statistical experiment study of design annual runoff satisfying P-Ⅲ distribution estimated by curve-fitting method;
适线法估计P-Ⅲ分布设计年径流量的统计试验研究
4) fitting method
适线法
1.
A constrained and weighted fitting method for hydrologic frequency calculation;
水文频率计算有约束加权适线法
5) genetic algorithm based curve fitting
GA适线法
6) frontier electron density method
前线电子密度法
1.
Based on the molecular orbital theories, three kinds of methods are systematically introduced, such as the π charge density method, localization energy method and frontier electron density method, which are used in predicting the reactivity at the ortho, para and meta position of the mono-substituted benzenes.
以分子轨道理论为基础,系统介绍了π电荷密度法、定域能法和前线电子密度法等三种用于预测一元取代苯进行亲电取代反应时邻、间、对位的相对反应活性及反应产物的方法。
补充资料：X线电子计算机横断体层扫描
X线电子计算机横断体层扫描
co?mputed tomography,CT
一种新型的X线检查设备。有以下几部分组成：扫描机架、高压系统、数据采集系统、计算机系统、磁盘机、磁带机和操控台。其原理是人体各种组织对X线的吸收衰减值不同(吸收系数用Hμ表示），反映了不同的组织特性。X线通过人体对各点内投影值进行测量，把测到的不同强度的信号经模数转换输入到磁盘机暂时贮存。这些数字再经计算机处理得出可以产生图像的数据信号再存于磁盘，最后经数模转换形成模拟信号，在显示屏上显示出图像。本法具有较高的密度分辨率和空间分辨率，定位定性效果较好，还可以完成图像的矢状位、冠状位及斜位重建。
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