ALBERT

Description: Behavior of different planar multilayer periodic structures due to plane wave excitation has been studied using the transfer matrix method. Multilayer structure is composed of odd number of slabs and the layers at odd locations have same characteristics and layers at even locations have same characteristics. For each structure, layers at odd locations are of chiral nihility metamaterial whereas three different cases are considered for layers at even locations, i.e., dielectric, chiral and chiral nihility. Effects of polarization rotation due to the optical activity of material's chirality is studied with respect angle of incidence and frequency in THz region. Chiral nihility adds property of transparency to the structure for normal incidence. Chiral nihility-chiral nihility structure for normal incidence yields transparency whereas same structure for oblique incidence yields total rejection at higher frequencies. Content Type Journal Article Pages - DOI 10.3233/JAE-131724 Authors Nayyar Abbas Shah, Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan Faiz Ahmad, Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan Aqeel A. Syed, Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan Qaisar A. Naqvi, Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan Journal International Journal of Applied Electromagnetics and Mechanics Online ISSN 1875-8800 Print ISSN 1383-5416

Description: The contact behavior between a transversely isotropic piezoelectric material and a rigid-conducting punch of flat-end was analyzed under the condition that there is no biased-electric potential applied to the punch. Two limiting cases were studied; one was for semi-infinite piezoelectric materials and the other for piezoelectric films with contact radius much larger than the film thickness. Analytical relationships were derived between the indentation load and the indentation depth and between the indentation-induced potential and the indentation depth. Both the indentation load and the indentation-induced potential are proportional to the indentation depth. For the adhesive contact, the pull-off force is proportional to the 3/2 power of the punch radius for semi-infinite piezoelectric materials and to the square of the punch radius for piezoelectric films. The piezoelectric charge coefficient determined from the contact deformation of a piezoelectric film with contact radius much larger than the film thickness is only dependent on dielectric constant and piezoelectric constant. Content Type Journal Article Pages - DOI 10.3233/JAE-131721 Authors Fuqian Yang, Materials Program, Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA. Tel.: +1 859 257 2994; Fax: +1 859 323 1929; E-mail: fyang0@engr.uky.edu Journal International Journal of Applied Electromagnetics and Mechanics Online ISSN 1875-8800 Print ISSN 1383-5416

Description: This paper deals with the novel structure and coupling analysis of a 3-degrees of freedom (3-DOF) conical magnetic bearing. The conical stators of the bearing are designed symmetrical to provide the axial control exclusively, and the radial stators are separated by nonmagnetic material between X and Y channels, so the magnetic flux path can be separated among different channels. The configuration and working principle of the bearing are provided, and the mathematical model is derived based on the bias and control magnetic circuits. In order to evaluate the degree of force coupling between different channels, the concept of coupling factor is proposed, which is defined as the ratio of force variation caused by coupling to the original force when there is no coupling. The coupling factors are analyzed not only among the translational movement of X, Y and Z channels but also between the translational and rotational degrees of freedom. The calculation results show that although the component coupling factors of each magnetic poles are a little larger, the resultant ones in X, Y and Z directions of the designed bearing are all less than 4%. Therefore, the magnetic forces and torques of different channels are weakly coupled, and it is convenient for the control of the magnetic bearing. Content Type Journal Article Pages - DOI 10.3233/JAE-131725 Authors Chun'e Wang, Science and Technology on Inertial Laboratory, Fundamental Science on Novel Inertial Instrument and Navigation System Technology Laboratory, Beihang University, Beijing, China Jiancheng Fang, Science and Technology on Inertial Laboratory, Fundamental Science on Novel Inertial Instrument and Navigation System Technology Laboratory, Beihang University, Beijing, China Jiqiang Tang, Science and Technology on Inertial Laboratory, Fundamental Science on Novel Inertial Instrument and Navigation System Technology Laboratory, Beihang University, Beijing, China Jinji Sun, Science and Technology on Inertial Laboratory, Fundamental Science on Novel Inertial Instrument and Navigation System Technology Laboratory, Beihang University, Beijing, China Journal International Journal of Applied Electromagnetics and Mechanics Online ISSN 1875-8800 Print ISSN 1383-5416

Description: In order to improve recycling quality of asphalt mixtures based on microwave heating, thermoelectric coupling theory is researched. Heat conduction equation is built according to Fourier's Law. Series model, parallel model and Maxwell model are studied to solve thermal conductivity of asphalt mixtures. Radiation field model of pyramidal horn antenna is set up and mean value of electric field intensity is measured by experiment. Thermoelectric coupling model is built on the basis of dielectric property of asphalt mixtures. Numerical simulation is performed for the model. It is found that influence of asphalt-aggregate ratio on temperature field is not distinct. Average temperature of asphalt mixtures is related to microwave power and increases with microwave power linearly. The asphalt mixtures using diorite as aggregate have a strongest adsorption capability to energy. The result can simulate hot in-place regeneration process, and has important significance to improve regeneration quality of asphalt mixtures. Content Type Journal Article Pages - DOI 10.3233/JAE-131722 Authors Tongsheng Sun, School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, Anhui, China. Tel.: +86 553 287 1252; E-mail: suntongsheng@ahpu.edu.cn Journal International Journal of Applied Electromagnetics and Mechanics Online ISSN 1875-8800 Print ISSN 1383-5416

Description: In this paper, we investigate the multiple attribute decision making (MADM) problem based on the arithmetic and geometric aggregation operators with hesitant fuzzy linguistic information. Then, motivated by the ideal of traditional arithmetic and geometric operation, we have developed some aggregation operators for aggregating hesitant fuzzy linguistic information: hesitant fuzzy linguistic arithmetic aggregation operators, hesitant fuzzy linguistic geometric aggregation operators, hesitant fuzzy linguistic correlated aggregation operators, induced hesitant fuzzy linguistic aggregation operators, induced hesitant fuzzy linguistic correlated aggregation operators, hesitant fuzzy linguistic prioritized aggregation operators, hesitant fuzzy linguistic power aggregation operators. Then, we have utilized these operators to develop some approaches to solve the hesitant fuzzy linguistic multiple attribute decision making problems. Finally, a practical example is given to verify the developed approach. Content Type Journal Article Pages - DOI 10.3233/IFS-130977 Authors Rui Lin, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Xiaofei Zhao, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Hongjun Wang, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Guiwu Wei, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246

Description: In a process using monitoring with p-control charts or np-control charts, due to the uncertainty of the attribute data, traditional control charts may be insufficient. In this case, fuzzy control charts are pertinent control techniques used to capture vagueness. Many studies in the literature are configured with transformation techniques at the decision stage, and in this study, fuzzy control charts are constructed using rules. Therefore, fully fuzzy control charts are first introduced for fuzzy [( p )\tilde]-control charts based on constant sample size and variable sample size, and fuzzy n [( p )\tilde]-control charts are subsequently introduced using decision rules for the process state conditions. Therefore, “rather in control” and “rather out of control” decisions can be considered in monitoring of the process. Content Type Journal Article Pages - DOI 10.3233/IFS-130986 Authors Nihal Erginel, Industrial Engineering Department, Anadolu University, Eskisehir, Turkey Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246

Description: As generalize of the hesitant fuzzy sets, hesitant interval-valued fuzzy sets (HIVFSs), which permits the memberships of an element to a given set having a few different interval values in [0,1] rather than real numbers, can be considered as a powerful tool to express uncertain information in the human decision making process. Based on the traditional Hamming distance, Euclidean distance, Hausdorff distance, and generalized distance, in this paper, we propose a variety of distance measures for hesitant interval-valued fuzzy sets, based on which the corresponding similarity measures can be obtained. We investigate the connections of the aforementioned distance measures and further develop a number of hesitant interval-valued ordered weighted distance measures and hesitant interval-valued ordered weighted similarity measures. They can alleviate the influence of unduly large (or small) deviations on the aggregation results by assigning them low (or high) weights. Finally, we shall present a numerical example to show potential evaluation of emerging technology commercialization with hesitant interval-valued fuzzy information in order to illustrate the method proposed in this paper. Content Type Journal Article Pages - DOI 10.3233/IFS-130975 Authors Guiwu Wei, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Rui Lin, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Hongjun Wang, Institute of Decision Sciences, School of Economics and Management, Chongqing University of Arts and Sciences, Yongchuan, China Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246

Description: Optimal capacitor placement problem is a significant and precious strategy which can be supposed as an always appropriate solution to reduce the operating costs in the power systems. Nevertheless, as the result of nonlinear and discrete characteristics of this problem, traditional optimization methods can not solve it effectively. Therefore, this paper proposes a novel optimization framework based on shuffled frog leaping algorithm (SFLA) to solve the optimal capacitor placement and sizing problem properly. In this regard, a new modification approach based on the mutation and crossover operators is suggested to improve the local search ability of this algorithm. The effectiveness and satisfying performance of the proposed method is assessed on two IEEE test systems. Comparative results sow the superiority of the proposed optimization method than the other popular methods in the area. Content Type Journal Article Pages - DOI 10.3233/IFS-130997 Authors Mohammad-Reza Akbari-Zadeh, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran Mahdi Vosoogh, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran Mohammad Mirjavadi, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran Alireza Abbasi, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246

Description: This paper considers supply chain models with a manufacturer acting as the leader and two competitive retailers acting as followers under a fuzzy decision environment. The parameters of demand function and manufacturing cost are treated as the triangular fuzzy variables. Two retailers are assumed to pursue two kinds of competitive behavior: Cournot and Stackelberg. For each case, optimum policy of the expected value and two chance-constrained programming models are derived. Finally, a numerical example is provided to illustrate the results of proposed models. It is shown that in fuzzy models, the different competitive behaviors of two retailers do not affect the optimal pricing strategies of the manufacturer, and the confidence level of the profits for supply chain members affects the optimal sale price, wholesale price and profits. Content Type Journal Article Pages - DOI 10.3233/IFS-130994 Authors Shengju Sang, Department of Economics, Heze University, Heze, China Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246

Description: Today, preference relations are among the most common types of expressing decision maker's preference information found in uncertainty research. Intuitionistic multiplicative preference relation can reflect our intuition more objectively and it was proposed by Xia et al. [20] recently. In this article, we first develop some aggregation operators for intuitionistic multiplicative numbers, such as the intuitionistic multiplicative weighted averaging operator and intuitionistic multiplicative ordered weighted averaging operator. Their desirable properties are also investigated in detail. Furthermore, based on the proposed aggregation operators, we further introduce a group decision making method based on intuitionistic multiplicative preference relations. Finally, a real example about personnel selection is given to illustrate the effectiveness of our method, the numeric comparison between our group decision making method and the ones of Xia et al. [20] are also provided. Content Type Journal Article Pages - DOI 10.3233/IFS-130984 Authors Dejian Yu, School of Information, Zhejiang University of Finance and Economics, Hangzhou, China Lincong Fang, School of Information, Zhejiang University of Finance and Economics, Hangzhou, China Journal Journal of Intelligent and Fuzzy Systems Online ISSN 1875-8967 Print ISSN 1064-1246