摘要：This article investigates the performances of different extractive distillation processes intensified with dividing-wall column for separating benzene-isopropanol-water ternary *** the processes with ethylene glycol as solvent are optimized with the minimal total annual cost(TAC)as *** order to get the global optimal solution intelligently,an improved simulated annealing algorithm is adopted,which is programmed in MATLAB and linked to Aspen *** results show that the extractive dividing wall column-solvent(EDWC-S)process consisting of an extractive dividing wall column and a solvent recovery column is the best *** can reduce the TAC by 28.65%and CO_(2) emissions by 32.84% compared to the conventional triple-column extractive distillation process.

摘要：This paper discusses design and comparison of simulated Annealing Algorithm and Greedy Randomized Adaptive Search Procedure (GRASP) to minimize the makespan in scheduling n single operation independent jobs on m unrelated parallel machines. This problem of minimizing the makespan in single machine scheduling problem with uniform parallel machines is NP hard. Hence, heuristic development for such problem is highly inevitable. In this paper, two different Meta-heuristics to minimize the makespan of the assumed problem are designed and they are compared in terms of their solutions. In the first phase, the simulated annealing algorithm is presented and then GRASP (Greedy Randomized Adaptive Search procedure) is presented to minimize the makespan in the single machine scheduling problem with unrelated parallel machines. It is found that the simulated annealing algorithm performs better than GRASP.

摘要：simulated signal, produced by digital to analog converter, is important and necessary in many fields, such as electronic experiment, equipment debugging and maintenance, especially, in medical area. In this paper, the design and application of an effective software which may be used to generate simulated signal data by special wave picture obtained by scanner or drawing software are presented. First, we introduce how to realize producing needed data that meet the given conditions including amplitude, samples and resolution by this software. Second, the method and steps of getting the stimulated signal data from wave figure file is given. Third, an example of application about this software to generate simulated physiological signal data is shown. Then, the data are put into use and by digital to analog converter, an idea stimulated signal is produced. Therefore, with full confidence, we could draw a conclusion that it is very convenient and effective to get needed data for digital to analog conversion to generate all kinds simulated signal with a novel method.

摘要：采用电子束熔化(EBM)成形工艺,制造具有可控多孔结构的Ti6Al4V植入体,分析测试其微观孔隙结构特征、孔隙率以及力学性能。扫描电镜观测结果表明,所制备的钛合金植入体孔隙结构特征与设计结构相符合,证明EBM技术能够实现钛合金植入体孔隙结构的控制;测得多孔植入体的孔隙率为60.1%,相应的抗压强度为163MPa,弹性模量为14GPa,与人体骨组织弹性模量相近。利用改进的碱热处理方法进行表面改性,并浸泡在模拟体液中以诱导磷灰石的形成。体外细胞培养试验结果表明,培养7d后成骨细胞在改性的试件表面大量粘附、生长、增殖。

摘要：A design synthesis technique based on sensitivity for Micro-Electro-Mechanical Systems (MEMS) proposed. This new technique can be called Sensitivity-Based Direct Solution Algorithm (DSA) of design synthesis for MEMS with expected performance. Design synthesis with expected performance is regarded as a reverse problem of MEMS analysis. Behavior equation group can be educed from analysis equations. Solving the behavior equation group only need L design variables, L is number of desired behaviors. This behavior equation group can be solved using any solution algorithm of non-linear equation group. Newton Iteration Method based on sensitivity is adopted. Comparing with Genetic Optimization Algorithm (GA) and simulated Annealing Optimization Algorithm (SA), computational workload of DSA is greatly decreased. For instance, synthesis computation of a meandering resonator only needs 4 iterations (17 analyses);computational time is decreased from 7~8 hours to less than 30 seconds.

摘要：本文引入模拟退火法,遗传算法和微粒群算法等三种常见的反分析算法,结合混凝土三维不稳定温度场的仿真计算理论,编制了相应的Fortran程序,并通过实例对这三种算法的可靠性和计算精度及效率进行了验证和对比。结果表明,微粒群算法反演效果最佳,模拟退火法反演精度最低。

摘要：连续系统仿真ＴｕｒｂｏＣ程序王春芳（轮机系）Ｏ引言计算机仿真技术广泛应用于航空、核能及工业过程控制等许多领域，已经成为分析、研究、设计控制系统必不可少的重要手段。数字仿真软件分两种：数字仿真程序及数字仿真语言。由于仿真程序是仿真语言的基础，它对计算机...