Chen J.,Huazhong University of Science and Technology |
Li Y.,China Mobile |
Fan Y.,Huazhong University of Science and Technology |
Wu W.,Fujian Chuanzheng Communications College |
And 3 more authors.
VCIP 2016 - 30th Anniversary of Visual Communication and Image Processing | Year: 2016
This paper presents a novel perspective of performance evaluation for visual attention estimation: how the saliency models perform in mobile conditions. In particular, a broad-spectrum contrast sensitivity function is firstly proposed in this work. Based on this function, a new visual perception model is established, which will be further used to simulate the image perception in various mobile circumstances. Then the influence caused by mobile surroundings for visual attention is investigated. Meanwhile three types of mobile ground truth are generated by collecting viewers' fixations in three typical mobile conditions. Finally, by the perception model and mobile ground truth, an evaluation for ten classical visual attention models in various mobile surroundings is presented. © 2016 IEEE.
Chen J.,Guangzhou Maritime Institute |
Chen J.,Shanghai JiaoTong University |
Tang W.,Shanghai JiaoTong University |
Huang P.,Guangzhou Maritime Institute |
Xu L.,Fujian Chuanzheng Communications College
Structural Engineering and Mechanics | Year: 2016
The paper is devoted to study a mesh-free analysis method of structural elements of engineering structures based on B-spline Wavelet Basis Function. First, by employing the moving-least square method and the weighted residual method to solve the structural displacement field, the control equations and the stiffness equations are obtained. And then constructs the displacement field of the structure by using the m-order B-spline wavelet basis function as a weight function. In the end, the paper selects the plane beam structure and the structure with opening hole to carry out numerical analysis of deformation and stress. The Finite Element Method calculation results are compared with the results of the method proposed, and the calculation results of the relative error norm is compared with Gauss weight function as weight function. Therefore, the clarification verified the validity and accuracy of the proposed method. Copyright © 2016 Techno-Press, Ltd.
Li Y.,Fujian Chuanzheng Communications College |
Feng B.,Wuhan University of Technology
Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) | Year: 2012
Ship hull form hydrodynamic performance integrated optimization usually requires a mass of calculation to complete a feasibility design, and the huge calculation complexity means that it is difficult to make a effective optimization design, must carries on system reconstruction. The paper separately illustrates the basic principle of MDF and IDF system reconstruction methods which are universally used at present, takes 46000t oil tanker principal dimension and hull form optimization design as example using two kinds of system reconstruction methods. The result presents that IDF is a ideal method of hull form multidisciplinary design optimization system reconstruction. The research makes a foundation for hull form multidisciplinary design optimization platform into application.
Yang J.,Fujian Agriculture and forestry University |
Li D.-F.,Fuzhou University |
Lai L.-B.,Fujian Chuanzheng Communications College
Journal of Intelligent and Fuzzy Systems | Year: 2016
The aim of this paper is to develop a new methodology for solving bimatrix games with payoffs of triangular intuitionistic fuzzy numbers (TIFNs), which are called TIFN bimatrix games for short. In this methodology, we define the concepts of the value-index and ambiguity-index and hereby develop a difference-index based ranking method, which is proven to be a total order. The parameterized bilinear programming models are derived from a pair of auxiliary TIFN mathematical programming models, which are used to determine solutions of TIFN bimatrix games. Validity and applicability of the models and method proposed in this paper are illustrated with a practical example. © 2016 - IOS Press and the authors.
Liang W.,Fuzhou University |
Liang W.,Fujian Chuanzheng Communications College |
Zhuo W.,Fuzhou University
International Journal of Earth Sciences and Engineering | Year: 2015
Aiming at the current problems that the existing bridge structure reliability analysis model is solved slowly and it is difficult to find the global optimal solution and other issues. This paper put forward a kind of reliability analysis model of bridge structure based on improved simulated annealing algorithm, reduced the computational complexity of the inner loop to optimize the disturbance mode, used adaptive cooling control strategy to improve annealing process speed, used the effective offset to improve the solving way. Simulation results showed that the reliability analysis model of bridge structure this paper proposed which based on improved simulated annealing algorithm had better performance, and had certain feasibility and accuracy. © 2014 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.
Yan W.,Fuzhou University |
Yan W.,Fujian Chuanzheng Communications College |
Fu G.,Fuzhou University
Materiali in Tehnologije | Year: 2012
A hot-processing map and TEM images of a 1235 aluminum alloy have been used while studying hot-deformation characteristics of this alloy. The results showed that an ideal processing region exists in the high-temperature/low-strain-ratearea and that the power-dissipation efficiency is around 46 %. It is better to avoid deformations at the low-temperature/high-strain rate and the high-temperature/moderate-strain rate due to their processing instability and lower power-dissipation efficiency.
Wei L.,Fuzhou University |
Wei L.,Fujian Chuanzheng Communications College |
Weidong Z.,Fuzhou University
International Journal of Earth Sciences and Engineering | Year: 2014
This paper has analyzed the problems in the current bridge durability design, explored the basic process of durability quantitative design, and established the limit state equation of durability based on various life span criteria. It has also summarized the research results of the performance degradation process of bridge members in the common atmosphere environment and provided practical examples to illustrate the process of bridge durability quantitative design. ©2014 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.
Ping Y.,Fujian Chuanzheng Communications College |
Rui W.,Chang'an University |
Yuhong S.,Chang'an University |
Pengmin L.,Chang'an University
Applied Mechanics and Materials | Year: 2013
The concrete pump truck's boom system of 5 booms is taken as the research object in this paper. Combined with finite element theory and multi-body dynamics theory, a rigid-flexible coupling model of concrete pump truck's boom system is established by modal synthesis method. With the measured displacement-time curve of turntable as the excitation, the booms' pumping process in horizontal mode is simulated by the dynamic simulation software ADAMS. Through the field experiment results, the rationality of the modal is verified. It provides an effective method for dynamics analysis and structure improve of the concrete pump truck's boom system. © (2013) Trans Tech Publications, Switzerland.
Chen R.,Fujian Chuanzheng Communications College
Open Mechanical Engineering Journal | Year: 2014
In this paper, we study the travel mode choice of residents to determine the set of factors which can influence travel mode choice of residents and analyze the influence factor characteristics. Using Bayesian theory, we analyze the travel decision-making data of the residents, discrete them, and use them in Bayesian network structure learning and parameter estimation by K2 algorithm. We establish a Bayesian network simulation model to analyze the dependence probability relationship between the parent nodes and child nodes. Validation test was carried out for the building simulation model of Bayesian network. Data analysis results showed that the Bayesian network has a high accuracy prediction for actual travel mode choice of residents. This paper studies the Bayesian structure and parameters learning method for the actual travel behavior, and this method which provides a new method for studying the travel mode choice of residents can reveal the relationship between the various attributes associated with travel mode choice through a new perspective. © Ruijing Chen.
Li Y.,Fujian Chuanzheng Communications College |
Xie Z.,Fujian Chuanzheng Communications College
Fenmo Yejin Jishu/Powder Metallurgy Technology | Year: 2014
It is shown that hardness and bending strength of segment can be increased by ball milled metal powders. The abrasive resistance and sharpness of three kinds of diamond circular saw bladess were tested. The results show that ball milled metal powders can improve the properties of saw blade, so new product with low cost and high performance can be developed. ©, 2014, Beijing Research Institute of Powder Metallurgy. All right reserved.