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FUZZY GOAL PROGRAMMING FOR MULTIOBJECTIVE TRANSPORTATION PROBLEMS
Zangiabadi, M.,Maleki, H.R. 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1
Several fuzzy approaches can be considered for solving multi-objective transportation problem. This paper presents a fuzzy goal programming approach to determine an optimal compromise solution for the multiobjective transportation problem. We assume that each objective function has a fuzzy goal. Also we assign a special type of nonlinear (hyperbolic) membership function to each objective function to describe each fuzzy goal. The approach focuses on minimizing the negative deviation variables from 1 to obtain a compromise solution of the multiobjective transportation problem. We show that the proposed method and the fuzzy programming method are equivalent. In addition, the proposed approach can be applied to solve other multiobjective mathematical programming problems. A numerical example is given to illustrate the efficiency of the proposed approach.
Ali Zangiabadi,Simin Armaghan 한국문화관광학회 2017 문화관광연구 Vol.19 No.1
Nwadays, urban cities residents are trying to escape the environmental pollution which threatens them, and spend a part of their time in peaceful and natural places. Hence tourism is one of the phenomenon which in the last decades, it has an influence on urban rural and specially the country villages. The goal of this research is to analyze the foundation and identification process of the effective factors in tourism development around Tehran’s “KALAN SHAHR”. The research method in this study is descriptive, that in order to gather the information, questioning from sample of 200 families, have been made. The results show that the study of the tourism in rural in 1390 decade has been increased. And has a significant relation between environmental and human factors in formation of this industry. Due to the research results, identification of the outcomes and the effects of environmental factors in tourism structure of urban rural have been proposed.
Reconstruction and Renewal of Traditional Houses and its Impact on Tourism Development in Rasht
Simin Armaghan,Ali Zangiabadi 한국문화관광학회 2017 문화관광연구 Vol.19 No.1
Traditional house in Rasht contains monuments and heritage of ancestors who once lived in these houses. These houses represent the customs, culture and lifestyle of the people of Rasht and bridge the gap between modern people and their past that is being forgotten. Maintenance of the buildings and architectural heritage together with their unique architecture and climatic related construction has an important role in tourism attraction and sustainable development. The purpose of this study was to develop a new definition of vacation shacks that is different with the definition of Cultural Heritage Organization. The place to stay and visit that is rebuilt or renovated based on traditional architectural style of Rasht and yet provides modern amenities so that it would not undermine indigenous traditional sense of the house. Data collection for this study is based on review of literature and field study. Results and the statistics of this study will prove that the research hypothesis is supported and there is a correlation between traditional houses of Rasht, as tourism - accommodation place and tourist attraction. It also indicates the capability and potential of these ancient monuments in the introduction of the culture of this land, and calling people and many tourists come to visit and stay in such places.
Mansouri, Hossein,Pirhaji, Mohammad,Zangiabadi, Maryam Korean Mathematical Society 2017 대한수학회논문집 Vol.32 No.3
Finding an initial feasible solution on the central path is the main difficulty of feasible interior-point methods. Although, some algorithms have been suggested to remedy this difficulty, many practical implementations often do not use perfectly centered starting points. Therefore, it is worth to analyze the case that the starting point is not exactly on the central path. In this paper, we propose a weighted-path following interior-point algorithm for solving the Cartesian $P_{\ast}({\kappa})$-linear complementarity problems (LCPs) over symmetric cones. The convergence analysis of the algorithm is shown and it is proved that the algorithm terminates after at most $O\((1+4{\kappa}){\sqrt{r}}{\log}{\frac{x^0{\diamond}s^0}{\varepsilon}}\)$ iterations.
AN ADAPTIVE PRIMAL-DUAL FULL-NEWTON STEP INFEASIBLE INTERIOR-POINT ALGORITHM FOR LINEAR OPTIMIZATION
Asadi, Soodabeh,Mansouri, Hossein,Zangiabadi, Maryam Korean Mathematical Society 2016 대한수학회보 Vol.53 No.6
In this paper, we improve the full-Newton step infeasible interior-point algorithm proposed by Mansouri et al. [6]. The algorithm takes only one full-Newton step in a major iteration. To perform this step, the algorithm adopts the largest logical value for the barrier update parameter ${\theta}$. This value is adapted with the value of proximity function ${\delta}$ related to (x, y, s) in current iteration of the algorithm. We derive a suitable interval to change the parameter ${\theta}$ from iteration to iteration. This leads to more flexibilities in the algorithm, compared to the situation that ${\theta}$ takes a default fixed value.
An adaptive primal-dual full-Newton step infeasible interior-point algorithm for linear optimization
Soodabeh Asadi,Hossein Mansouri,Maryam Zangiabadi 대한수학회 2016 대한수학회보 Vol.53 No.6
In this paper, we improve the full-Newton step infeasible interior-point algorithm proposed by Mansouri et al. \cite{Arzani}. The algorithm takes only one full-Newton step in a major iteration. To perform this step, the algorithm adopts the largest logical value for the barrier update parameter $\theta$. This value is adapted with the value of proximity function $\delta$ related to $(x\k y\k s)$ in current iteration of the algorithm. We derive a suitable interval to change the parameter $\theta$ from iteration to iteration. This leads to more flexibilities in the algorithm, compared to the situation that $\theta$ takes a default fixed value.
Via Method for Lithography Free Contact and Preservation of 2D Materials
Telford, Evan J.,Benyamini, Avishai,Rhodes, Daniel,Wang, Da,Jung, Younghun,Zangiabadi, Amirali,Watanabe, Kenji,Taniguchi, Takashi,Jia, Shuang,Barmak, Katayun,Pasupathy, Abhay N.,Dean, Cory R.,Hone, Ja American Chemical Society 2018 NANO LETTERS Vol.18 No.2
<P>Atomically thin 2D materials span the common components of electronic circuits as metals, semiconductors, and insulators, and can manifest correlated phases such as superconductivity, charge density waves, and magnetism. An ongoing challenge in the field is to incorporate these 2D materials into multilayer heterostructures with robust electrical contacts while preventing disorder and degradation. In particular, preserving and studying air-sensitive 2D materials has presented a significant challenge since they readily oxidize under atmospheric conditions. We report a new technique for contacting 2D materials, in which metal <I>via contacts</I> are integrated into flakes of insulating hexagonal boron nitride, and then placed onto the desired conducting 2D layer, avoiding direct lithographic patterning onto the 2D conductor. The metal contacts are planar with the bottom surface of the boron nitride and form robust contacts to multiple 2D materials. These structures protect air-sensitive 2D materials for months with no degradation in performance. This via contact technique will provide the capability to produce “atomic printed circuit boards” that can form the basis of more complex multilayer heterostructures.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2018/nalefd.2018.18.issue-2/acs.nanolett.7b05161/production/images/medium/nl-2017-05161z_0005.gif'></P>