查询词典 quadratic

The numbers of new cases and the rate of incidence of malaria can be predicted by the quadratic forecast model of population and the logarithmic curve model of new cases. The general trend of malaria are gradually decreasing in Chongqing municipal.

运用人口数的二次曲线模型和疟疾新发病例的对数曲线模型能够较好的预测疟疾发病数和发病率，总体来看重庆市疟疾动态的总趋势是持续下降的。

Result The population and new case of malaria can be predicted by the quadratic forecast model of population and logarithmic curve model of new case in Chongqing municipal. The prediction range of population is from 3113112 to 3368928, and the range of the new cases rate of incidence of malaria is from 126 to 134 in 2002 year. These two numbers are consistent with actual number of population and new cases, which are 31309038 and 130, respectively.

结果 重庆市人口数的二次曲线模型和疟疾新发病例的对数曲线模型能够对重庆市人口数和疟疾新发病例数进行预测，2002年重庆市人口数预测范围为3113112~3368928人，新发病例数范围为126~134例；分别与实际的人口数（31309038人）和病例数（130例）基本吻合。

The quadratic forecast model of population and logarithmic curve model of new case were established using the time series models. The malaria cases and incidence rate were analyzed and predicted by using these models.

运用SPSS 12.0统计软件，利用时间序列模型建立人口数的二次预测模型和年新发病例数的对数曲线模型来分析预测疟疾的发病数及发病率。

The paper provides a new dimension-reduced method of sensitivity analysis for stochastic user equilibrium assignment model based on the relation between its Lagrange function and logarithmic barrier function combined with a Courant quadratic penalty term. The advantage of this method is of smaller dimension than general sensitivity analysis and reducing the complexity.

基于随机用户平衡分配扰动模型的Lagrange函数及带柯朗二次惩罚项的对数边际函数之间的关系给出了一种的新的降维灵敏度分析方法，与通常所说的灵敏度分析相比它的优点是大大减小了计算的维数，降低了复杂性。

Relation between longitudinal wave velocity and uniaxial tensile strength is quadratic curve after high temperature.

高温后纵波波速与抗拉强度关系复合2次曲线关系。

The quadratic variation is lower than 0.6 indicating that the expert group has achieved high consensus over the contents of all indices.

各指标之四分差皆小於0.6，显示专家小组成员对於所有指标内涵已达高度共识。

Formulas in the MAX(1) and MARG(1), it is shown that the literal renaming problems are solvable in linear time, and the variable renaming problems are solvable in quadratic time.

证明了对于MAX(1)和MARG(1)中的公式，文字改名问题在线性时间内可解，变元改名问题在平方次时间内可解。

The Newton-Euler method is used to set up a mathematical model for the inverted pendulum, and then a pendulum controller is designed by using an optimal control method in a linear quadratic form.

用牛顿－欧拉方法建立了倒立摆的数学模型，在此基础上采用线性二次型最优控制方法设计了倒立摆的控制器。

The new updating method is to minimize the error matrix norm under the condition of a quadratic constraint under which the mode orthogonality should be satisfied and the mass and stiffness matrices should be fitted into the eigen equation.

该方法是在质量矩阵和刚度矩阵满足正交性条件和特征方程的约束下，使修正矩阵的范数最小，将模型修正问题转化为一个带二次约束的最小二乘问题。

It only takes quadratic bit complexity for the cryptosystem to perform an encryption/decryption operation.(6) A public-key cryptosystem is proposed by using a special combinatorial problem defined over the matrix ring. The security of the scheme is related to but not directly dependent upon the integer factorization problem.

6使用矩阵环上的一个特殊的组合问题构造了一个公钥加密算法，其安全性与整数分解问题有关，但并不直接依赖于整数分解问题，而是依赖于一类特殊的矩阵组合问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。