Capital University of Economics and Business
Chaoyang, China

Capital University of Economics and Business is a university in Beijing, People's Republic of China. The main campus of the university is located in the Fengtai District of Beijing. There is a smaller campus located in the Hongmiao area of Beijing's Chaoyang district that houses the International and Correspondence colleges. Wikipedia.

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Tang T.,Beihang University | Shi W.,Beihang University | Shang H.,Capital University of Economics and Business | Wang Y.,Beihang University
Nonlinear Dynamics | Year: 2014

In this paper, we construct a new car-following model with inter-vehicle communication (IVC) to study the driving behavior under an accident. The numerical results show that the proposed model can qualitatively describe the effects of IVC on each vehicle's speed, acceleration, movement trail, and headway under an accident and that the new model can overcome the full velocity difference (FVD) model's shortcoming that collisions occur under an accident, which illustrates that the new model can better describe the driving behavior under an accident than the FVD model. © 2014 Springer Science+Business Media Dordrecht.

Wu Z.,Capital University of Economics and Business
International Review on Computers and Software | Year: 2012

An image filtering algorithm based on improved Particle Swarm Optimization (PSO) -Random Inertia Weight (RIW) algorithm is proposed in this work. Image denoising is an important task in computer vision and image processing, as images acquired through image sensors are usually contaminated by noise. Image denoising algorithms can be directly used for image restoration and other higher-level tasks as a pre-processing step. The main goal of image denoising is to suppress noise images while preserving their features, such as meaningful edges or texture details, as much as possible. PSO algorithms have gained increasing interest for dealing with continuous optimization problems in recent years. PSO algorithm is an optimization tool based on population, which starts from random solution, finds an optimal value via iteration and has the characteristics of simplicity, efficiency, high precision and quick convergence. This paper proposes to adopt a improved PSO-RIW method to seek the optimal parameter of a fuzzy membership function, then perform fuzzy median filtering on the noise image and recover the gray value of the noise stained pixel point. Experimental results show the proposed algorithm gets better PSNR than other methods mentioned, observably. In terms of visual quality, the proposed algorithm can get the images with more details, smooth profiles and aliasing is restricted. © 2012 Praise Worthy Prize S.r.l.

Jin T.,Capital University of Economics and Business
Advanced Materials Research | Year: 2012

This paper describes general situation and hot spots of development of aviation fuel from two aspects of high density, thermal stability, and studies direction of research and development of jet fuel in the future. © (2012) Trans Tech Publications, Switzerland.

Wu Z.,Capital University of Economics and Business
International Journal of Simulation Modelling | Year: 2014

This paper mainly discusses the application of the particle swarm optimization in logistics distribution routing problems. Combining with the characteristics of logistics and distribution, it established a mathematical model of the distribution routing problem. Introducing three kinds of optimization strategies in the particle swarm optimization to optimize the particle swarm algorithm, constructing three different particle swarm algorithms of LinWPSO, SAPSO and RandWPSO, used respectively the standard of PSO, LinWPSO, SAPSO and RandWPSO to solve calculation cases of problems in logistics and route, the results showed that the performance of the LinWPSO, SAPSO and RandWPSO to solve vehicle routing problem is better than standard PSO. Performance of SAPSO is optimal, which can effectively solve vehicle routing problems of the logistics distribution, when the problem size increases, optimization advantages of the SAPSO will display fully, we can greatly shorten the delivery mileage by using the SAPSO to solve the logistics distribution routing problem. © 2014, Vienna University of Technology. All rights reserved.

Yao C.,Capital University of Economics and Business
Applied Mechanics and Materials | Year: 2012

In this paper, the author analysized the internet evolution of public opinion and thought it was suitable for simulating network evolution in public opinion by using cellular automata model. At the same time, it was discussed for the application of cellular automata simulation model of internet evolution of public opinion. In the end, the author gave some conclusions. © (2012) Trans Tech Publications, Switzerland.

Yang L.,Capital University of Economics and Business
Procedia Engineering | Year: 2012

Halogen free fire-retardant silicon rubber compounds for cable covering materials were prepared, using Magnesium hydroxide (MH), microencapsulated red phosphorous (MRP) as a synergist agent. Tensile Test was used to testify the mechanical properties. Limiting oxygen index (LOI) and UL 94 test were used to characterize the flammability of the developed formulations. Thermal analysis (TA) was used to characterize their thermal properties. © 2012 Published by Elsevier Ltd.

Zhou X.,Capital University of Economics and Business
Proceedings - 2011 4th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2011 | Year: 2011

This paper presents a systematic and comprehensive investigation on factors affecting the use of computer for elderly people by reviewing a great deal of literature on their educational levels, daily activities and health problem. The investigation includes an extensive literature reviews in the area of population census, ageing and human-computer interaction. Through the investigation, we will demonstrate the situation of demographic shift all over the world, obtain more clear definition of who is an elderly adult and find out how their educational level, daily activities, and health problem affect the use of computer. © 2011 IEEE.

Wu Z.,Capital University of Economics and Business
Advances in Information Sciences and Service Sciences | Year: 2012

Finite element method disperses continuous substance into a batch of elements, and this can transform the problem of infinity freedom degree into the problem of finite freedom degree, and then solves it by computers. It is a powerful numerical analysis method in solving engineering problems. Before analysis using finite element method, the model to be calculated must be meshed. So, the research and implementation of algorithms for finite element mesh generation is quite important. To the problem of two-dimensional models, the existing methods of finite element mesh generation have achieved much success and on the whole fulfil the requirement of actual engineering. However, to the problem of three-dimensional models, mesh generation methods only have received a little bit of effect, so they must be researched and developed farther. Finite element analysis consists of computer design model that is stressed and analyzed for specific results. This paper proposes computer graphic exhibition design using finite element analysis. It constructs finite element model, then it uses ANSYS software to simulate the process of graphic exhibition, simulate result shows that the proposed finite element model is effective, sets up the regular finite elements in the premise of visual effects and precision, improves the real time application and practicability of the model.

Chen W.,Capital University of Economics and Business
Physica A: Statistical Mechanics and its Applications | Year: 2015

In this paper, we discuss the portfolio optimization problem with real-world constraints under the assumption that the returns of risky assets are fuzzy numbers. A new possibilistic mean-semiabsolute deviation model is proposed, in which transaction costs, cardinality and quantity constraints are considered. Due to such constraints the proposed model becomes a mixed integer nonlinear programming problem and traditional optimization methods fail to find the optimal solution efficiently. Thus, a modified artificial bee colony (MABC) algorithm is developed to solve the corresponding optimization problem. Finally, a numerical example is given to illustrate the effectiveness of the proposed model and the corresponding algorithm. © 2015 Elsevier B.V.All rights reserved.

Guo W.,Capital University of Economics and Business
Proceedings of the 2012 24th Chinese Control and Decision Conference, CCDC 2012 | Year: 2012

Third-party reverse logistics (3PRL) has created new and innovative opportunities for academic researchers and business communities to explore the strategic, economic, environmental, and regulatory implications of recycled, remanufactured, and disposed products. This paper first considered and analyzed the relevant literature in 3PRL and identified the present state of theory in selecting 3PL; secondly this paper introduces a model for dealing with selecting third-party reverse logistics (3PRL) providers in the presence, the proposed model is based on analytical hierarchy process (AHP); finally a numerical example demonstrates the application of the proposed method. © 2012 IEEE.

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