查询词典 method of artificial variables

The (0,1) placement variables are treated as continuous variables and then rounded after the optimization. The computational formula of the sensitivities of the freevibration frequency with respect to placement variables is derived.

在压电材料组成的桁架结构的自由振动频率优化设计中，提出了压电杆件配置的(0，1)设计变量并将其连续化处理，推导了压电桁架自振频率对该设计变量的灵敏度计算方法。

Results: Independent variables of year and hospital level, rather than area were associated with the increase of the two dependent variables. The two dependent variables positively correlated with each other.

结果：多元多层模型显示，自变量中的年份与医院级别对两因变量（医院仪器设备总值与业务收入）的增长值有影响，而地区对其无影响；两因变量间存在正相关关系（r=0.962）。

Results: Independent variables of year and hospital level, rather than area were associated with an increase of the two dependent variables. The two dependent variables positively correlated with each other.

结果：多元多层模型显示，自变量中的年份与医院级别对两因变量（医院仪器设备总值与业务收入）的增长值有影响，而地区对其无影响；两因变量间存在正相关关系（r=0.962）。

State variables at left end of time interval and costate at right end of time interval were taken as independent mixed variables, and the state and costate variables inside the time interval were approximated by Lagrange interpolation. Nonlinear optimal control problems were replaced by nonlinear equations through dual variable principle, and the symplectic algorithm for solving nonlinear optimal control problems can be obtained at the same time.

以时间区段一端状态和另一端协态作为混合独立变量，在时间区段内采用拉格朗日插值近似状态变量与协态变量，然后利用对偶变量变分原理并将非线性最优控制问题转化为非线性方程组的求解，最终得到求解非线性动力学系统最优控制问题的保辛数值方法。

State variables at left end of time interval and costate at right end of time interval were taken as independent mixed variables,and the state and costate variables inside the time interval were approximated by Lagrange interpolation.

以时间区段一端状态和另一端协态作为混合独立变量，在时间区段内采用拉格朗日插值近似状态变量与协态变量，然后利用对偶变量变分原理并将非线性最优控制问题转化为非线性方程组的求解，最终得到求解非线性动力学系统最优控制问题的保辛数值方法。

On the basis of expectation disconformity pattern, considering simultaneously equity pattern and need disconformity pattern, this model introduces perceptive equity and perceptive price variables, and designs the corresponding observable variables and path relations for these structural variables.

该模型在期望不一致模式的基础上，同时考虑了公平模式和需要不一致模式，引入感知公平和感知价格变量，并为这些结构变量设计了相应的观测变量和路径关系，建立了由顾客满意、企业形象、感知价格到顾客忠诚三条路径关系，改变了传统模型中从顾客满意到顾客忠诚路径过于单一的情况。

Optimization design is often used in the design of MRI superconducting main magnet, where all variables are treated as continuous ones. According to the fact that not all variables are continuous, here the design problem is seen as a global optimization problem with discrete variables.

软件简介：在进行MRI超导主磁体的设计时常采用优化设计的方法，将各设计参数看作连续变量处理，但实际上很多参数是离散变量，为了更符合工程实际，将超导MRI 主磁体的设计作为一个含有离散变量的全局优化问题。

In reliability-based optimization problems of a ship's longitudinal structural design, there are lots of discrete variables and continuous variables. This kind of mixed-discrete non-linear optimization problem containing discrete and continuous variables has long been payed attention to, which is more difficult to solve when a number of reliability constraints are taken into account.

在船舶纵向结构的可靠性优化设计中，含有许多离散型设计变量和连续型设计变量，这种含有两种不同性质设计变量的大型结构物的混和优化问题，一直是人们瞩目的难题，尤其是考虑了多个可靠性约束条件之后，求解这种非线性优化问题就更为困难。

In this algorithm, at first the reactive power optimization problem is converted to integer nonlinear programming problem with discrete control variables which are solved by IGA; then by use of PDIP algorithm, the continuous variables which can match with the obtained most are solved, and the reactive power optimization is changed into a nonlinear programming problem with continuous control variables.

首先通过改进遗传算法求解无功优化问题中的离散变量，然后采用原对偶内点法求解与已获得离散变量最匹配的连续变量。

The dissertation suggestes that one should think over the variability of variables measured from drillholes, the variablility of variables measured from whole mineralization domain and the variability of variables measured from one direction.

本文建议确定块金值时综合考虑钻孔样品间变量变异性、整个矿化域范围内变量变异性和某个主要方向上变量变异性。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。