The Algorithm of Reduced Dimension forQuadratic Programming with Equality Constraints

In this paper,based on reference a method to solve the problem with equality constraints is given.A new approach for solving these problems is obtained,the number of dimensions of corresponding system or equations is less than that of the classic Lagrangian multiplier approximation.Using nonlinear equality constraints,the approximate algorithm is obtained.Moreover,the numerical difficulty is reduced by means of the new algorithm.     

Descending Dimension Algorithmfor Quadratic Programming Problem

This paper deals with the linear equations algorithm for quadratic programming problems with equality constraints.In this paper the optimality conditions were used for programming problem with equality constraints and then a linear equation was established. Finally the solution of these leads to optimal solution of quadratic programming problems.     

A Reactive Power Optimization of Classic Method Combined with Lincar Programming

A tow-stage VAR optimization model is presented in this paper.First.the optimal solution is quickly solved by VAR classic method,which only considers the limitaryconditions of Reactive Power and reactiue power equation and yet linear increment model based onsensitivity is set up and linear programnung is employed to correct the overlimit varlables,Theoptimal resnlts in the tirst stdge are corrected to be feasible.The proposed method has beensuccessful in the sample systems and reai systems.     

Descending Dimension Algorithm of Nolinear Programming Problem with Linear Inequality Constraints

The general nonlinear programming with linear constraints was investigated. In the algorithm, the method of contributing set was used. Comparing with the general contributing set method, the descending dimension method was used to solve the sub-problem with equality constraints in iterative procedure and the problem with inequality constraints. The algorithm is effective by the numerical test. Finally, it was proved that the iteration points are descending, when the objective functions are convex.     

The Optimal Model of Repaying Debt for Construction Projects and Its Applications

In this paper the optimal model of repaying debt combined with operational research and technology economics was presented. It is for solving the problem to increase the benefit of project in terms of planning to repay capital with interest.     

Application of the Method of Ordinary DifferentialEquations in Multiobjective Programming

In the author's previous works,a methed of ordinary differential equations forsolving multiobjective programming problem had been presented. In this paper, we further use ordi-nary differential equatfons to discuss the general multiobjective programming Problem and its con-straints more deeply. Under certain conditions, starting from some neibourhood of any feasible solu-tion of multiobjective programming problem, along the trajectory of the established system of ordi-nary differential equations,the solution is always conversent to the(weak)efficient solution of theoriginal multiobjective programming problem with respect to partial arguments.     

the Autolisp Programming Method Processing the Data of the Function of Mechanical and Electrical Products

This paper has briefly stated the necessit of applying the computer to processing automatically the data of the function of mechanical and electrical products. It has also presented the method which can solve this practical problem. The method is AutoLISP programming design. Besides, It has summarized the features of LISP and A oLISP language and the principles of the AutoLISP programming method. With examples.     

Optimization Algorithm Research on the Arch Axis of Steel Box-Concrete Composite Arch Bridge

The paper proposed an innovative optimized design philosophy of the optimal arch axis of steel box-concrete arch bridge. Formulas to calculate the arch axis at the arch crown and the arch springing of this type of arch bridge were respectively derived wit     

混合有机溶剂回流法提取玉米黄色素的实验研究

以玉米蛋白粉为原料,玉米黄色素的提取率为指标,根据玉米黄色素的性质,在单一溶剂提取实验的基础上进行了混合溶剂的提取实验研究。通过单因素实验表明,体积分数为95%乙醇的提取率最佳。在此基础上采用4因素二次旋转正交组合实验设计,建立了混合溶剂玉米黄色素的提取率Y与液料比(X1),提取时间(X2),乙醇体积分数(X3)和提取温度(X4)之间的回归模型。通过优化得到最优参数组合为:液料比为13∶1,提取时间为4h,乙醇体积分数为46%,提取温度为47℃,在此条件下的玉米黄色素最大提取率为4.17%,比单一溶剂提取得到了一定的提高。     

The Convergence of a 2-Block AOR Method for Large-Scaled Least-Square Problems

A necessary and sufficient condition and some sufficient conditions concerning the convergence of a 2-block AOR method for large-scaled least-square problems are given. It is shown that, by appropriately selecting parameters, the 2-block AOR method is always convergent and the theorem in [3] is only a corollary of this paper.     

The Method of Diagnosing Brain-dysfunction Based on Membership Function and BP Neural Network

Membership functions.formed with the characteristic values obtained by applying the continuous reaction time (CRT) theory from controls and heptic encephalopthy and proposedin this paper.whith these membership functions,the CRT data to be diagnosed are calculated in advance,and then discriminated by BP meural network to differentiate patients with or without braindysfunction.The troubles of low accuracy and efficiency,encountered in training BP network withfuzzy samples.scattered data and extended samples,are solved.     

应用二次回归正交旋转组合法进行小麦抗低温胁迫复配植物生长调节剂研发

为了缓解小麦苗期遭受低温胁迫造成的生长和生理伤害。通过二次回归正交旋转组合法,以‘淮麦30’为试验材料,小麦叶片中MDA含量为判断指标,研发水杨酸,硅酸钾,甜菜碱3种药剂不同浓度的组合作为复配植物生长调节剂。结果显示:二次回归正交旋转组合法设计的模型的优化数学方程为:Y=3.94254+0.52740X1+0.46793X3+0.40134X12+0.65125X1X2。通过对二次回归方程的方差分析得出小麦抗低温胁迫的最适配方浓度为:硅酸钾浓度1841 mg/L,水杨酸浓度50 mg/L,甜菜碱浓度468.2 mg/L。     

移动慕课混合式教学方法在“食品营养学”教学中的应用

慕课是近年来国内外兴起的大规模网络公开课授课模式,在"食品营养学"教学过程中采取了移动慕课混合式教学法,即课程授课方式以网络和面授方式混合授课,通过视频授课、在线讨论、在线作业等缩减面授次数,增加学生自主学习时间,改变传统模式授课过程中学生的被动学习地位,给学生最大发挥主观能动性的空间。     

文献计量分析在快速检索文献中的应用——以土壤氨挥发为例

为解决关注的研究领域中检索关键文献效率低的问题,本研究利用R语言bibliometrix包,以土壤氨(NH3)挥发为例,进行文献计量分析(包括关键词共现分析、共词分析及高被引论文分析),探索文献计量分析在Web of Science核心数据库中精确快速检索文献的方法.研究发现,第一次文献检索时,输入少量简单关键词(土壤...