查询词典 coefficient problem

By introducing the nonlinear complementarity problem function, the Karush-Kuhn-Tucker conditions of OPF model are transformed equivalently into a set of semismooth nonlinear algebraic equations. Then the set of semismooth equations can be solved by a semismooth L-M method based on the subdifferential. The method belongs to Newton-type method. It can ensure the positive defmitiveness of the iterative coefficient matrix by using the L-M parameter, which avoids the ill-conditioning of iterative equations. The method, requiring only the approximate solution of a linear system at each iteration, is quite applicable to the large-scale cases.

在利用非线性互补函数将OPF模型的KKT条件转化为半光滑非线性代数方程组后，采用基于次微分的半光滑L-M法求解，该方法属于牛顿法范畴，可通过对L-M参数的调整保证迭代系数矩阵的正定性，克服了系数矩阵的奇异引起的"病态"，且该方法在确定搜索方向时只需求解线性系统的加热器近似解，适用于大规模系统的求解。

According to GBEM,a fullysymmetric Galerkin multi-zone boundary element methodisproposed in this paper.Based on regarding the coefficient matrix as thesum of a symmetric part and a non-symmetric one,this problem is solvedby adopting a proper assembly.Following this treatment,GBEM will beextended for a wide scope.

针对这一问题，(1)本文在单域伽辽金边界元的基础上，采用先生成各子域的方程，将系数矩阵表达为对称部分与非对称部分之和，通过恰当的集成方式，消除非对称部分的方法，提出了一种完全对称的伽辽金边界元子域法，拓宽了伽辽金边界元法的使用范围。

The "divide and conquer" strategy is used to improve the key steps of the undetermined coefficient algorithm for constructing polynomial conservation laws of nonlinear DDEs, so the calculation complexity problem caused by the dramatic increase of redundancy is solved. Furthermore, Wu\'s elimination method is applied to solve the obtained nonlinear algebraic equations thus to get a more efficient algebraic algorithm.

本文从微分方程的标度变换出发，利用"分治"策略改进了构造非线性DDE守恒律待定系数算法中的关键步骤，有效解决了因冗余项急剧增加引起的中间计算过程膨胀问题，并将吴消元法应用到非线性代数方程组的求解上，从而给出了一个更高效的代数算法。

Through grey relation estimation matrix, the threat sequencing is transformed into a MADM problem. The algorithm for the weight of each threat criteria is proposed by information entropy to reduce the effect of the extreme numerical value. Applied the grey related projection value, the treat sequencing is carried out from the aspect of vector projection. In addition, the effects of the identification coefficient and the criteria weights on threat sequencing are investigated respectively.

首先通过建立灰色关联判断矩阵将威胁排序转化为多指标决策问题；其次为缩小极端值的影响提出了基于信息熵的威胁指标权重算法；最后从矢量投影角度应用灰色关联投影值进行威胁排序；并分别研究了分辨系数和指标权重对威胁排序的影响。

The people very are early realize CVT are facilitate driving, enhance the vehicles fuel oil efficient ideal installment, appears the bipyramid ball, the plate, the hooped column body from several dozens years ago and so on develops the leather belt transmission, but as a result of the rubbing surface friction coefficient and the components withstanding unit pressure limit, adds in the processing craft and the control difficult problem, cannot transmit compares the high efficiency, only limits uses in on the compact car.

人们很早就意识到CVT是方便驾驶、提高车辆燃油经济性的理想装置，由几十年前出现的双锥体球、盘、环柱体等发展到皮带传动，但由于摩擦面的摩擦系数及零件承受单位压力的限制，加之加工工艺和控制上的难题，不能传递较大功率，仅限用于微型汽车上。

Whether there is a significant effect of surface thermal conductivity on heat transfer coefficient in dropwise condensation is a problem that has yet not been settled hitherto.

本文的主要研究工作如下：（1）应用随机分形模型构造了液滴的空间和尺度分布，在此基础上首次建立了珠状凝结换热数值模拟的数学模型。

Aiming at local hydrological feature, the problem of transport and transformation of heavy metal in river network regions through mathematical modeling at the first time. Establishing modeling of heavy metal transport and transformation, dissolved heavy metal was the main research goal and the synthetically sedimentation coefficient was imported to investigate the migration of heavy metal between aquatic phase and sedimental phase.

针对区域水文特点，首次采用数学模拟的方式对平原河网地区的重金属迁移转化问题进行研究；建立重金属迁移转化模型，以溶解态重金属为主要研究对象，通过引入综合沉降系数分析重金属水相和沉积相之间的相互迁移过程。

Reducing the complexity of vector quantization is still a main problem. This paper presents a new algorithm of minimum distortion predicting vector quantization based on intraband and interband correlation. Here the whole distortion of the vector is predicted by the part distortion of the lower frequency coefficient components of vector, resulting in a reduction of 76 percent of complexity.

降低矢量量化器的复杂度一直是人们研究的一个主要问题，本文提出一种新的基于带间相关性的最小失真预测矢量量化算法，通过矢量中前面部分低频系数分量失真的计算去预测整个矢量的失真，编码复杂度降低了76％，而解码图像信噪比下降不到1dB。

Aiming at this problem, firstly, calculation formulae of utilization adhesion coefficient after installment of retarder were detailedly deduced. Then braking force distribution ratio , braking intensity and vehicle full-load parameters were taken as variables and inequalities which are about of retarder braking force , braking force distribution ratio , braking intensity and vehicle full-load parameters were established based on the ECE Law. The range of corresponding to any , as well as the most optimal matching between them, were obtained by solving these inequalities.

为此，论文在推导了安装缓速器后前、后轴利用附着系数、的计算公式基础上，基于ECE法规要求，以制动力分配比、制动强度及车辆满载参数为变量，建立了缓速器制动力关于车辆制动力分配比、制动强度和满载参数之间的多元不等式组，通过求解多元不等式组获得缓速器制动力与制动力分配比之间的取值关系，并从中得到二者之间的最优匹配。

Of the influence coefficient. Comprehensive machine set of vibration and equilibrium problem theories contact actual, the method which uses science then can insure the safe movement of machine set in actually the movement.

综合机组的振动与平衡问题理论联系实际，用科学的方法才能在实际运行中确保机组的安全运行。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。