Motameni H.,Islamic Azad University at Sari |
Nemati M.,Tabari University of Babol
International Journal of Engineering, Transactions B: Applications | Year: 2014
CRC cards are unconventional methods for identifying and describing classes, behavior and their responsibilities and collaborators of class. Representation of three categories of class, responsibilities and collaborators can give proper image of the scenario. These cards are effective method for analyzing scenarios. With all positive features of CRC cards, these cards have some weaknesses such as failure to show details of operations and failure to evaluate them. These weaknesses guide us to model and evaluate these cards using petri nets. Basis of petri nets is on graph. In addition, these petri nets have mathematical structure and definitions, they have graphics. One of the other important characteristics of petri nets is their applicability which can be used for evaluating behavior and efficiency of a system. Therefore, our goal in this paper is to map CRC cards into stochastic petri net for evaluating and analyzing quality parameter of security.
Abdollahzadeh G.,Babol Noshirvani University of Technology |
Faghihmaleki H.,Tabari University of Babol
Journal of Advanced Research in Dynamical and Control Systems | Year: 2014
Major part of existent structures have been designed based on old regulations and, hence, they are not able to respond to the expected operation under the effect of severe earthquakes. In present research, some methods of seismic rehabilitation of steel structures of medium moment frame with braces are studied. In this way, three models of steel medium moment frames (in two directions) with 3, 8 and 12 stories are designed according to old seismic design codes. Next, these models are evaluated on the basis of the seismic provisions for steel structures (ANSI/AISC 341-10). It is noticed that these structures don’t meet the required seismic provisions. Then, the models are rehabilitated by two following methods: (1) by using the Typical Buckling Braces (TBBs) and (2) by using Bucking Restrained Braces (BRBs). Structural models are analyzed in SAP2000 software with nonlinear static and dynamic time history analysis. The seismic responses are discussed in detail to explore pros and cons of the aforementioned strengthening methods. © 2014 Institute of Advanced Scientific Research, Inc.
Roodgar M.,Tabari University of Babol |
Mahmoudi M.M.,University of Tehran |
Ebrahimi P.,Islamic Azad University at Varamin |
Molaei D.,K. N. Toosi University of Technology
Procedia Engineering | Year: 2011
Although Green Building is one of the familiar subjects all over the world, it is a recently known field in Iran. This subject has been developed to expand the communications between domestic architecture and foresight in order to protect the environmental and climatic problems. This work generates a detailed comparison between modern and traditional housings by considering sustainability in energy and resource consumptions, architectural topology and green building evaluations in Kashan as a hot-arid region of Iran. The investigation shows results in several designrelated methods which are suitable to contribute as efficient use of energy and domestic resources. Finally, this work puts forward a set of recommendation to enhance the sustainability of future Kashan buildings. © 2011 Published by Elsevier Ltd.
Shahabi H.,University of Technology Malaysia |
Keihanfard S.,Islamic Azad University |
Ahmad B.B.,University of Technology Malaysia |
Amiri M.J.T.,Tabari University of Babol
Environmental Earth Sciences | Year: 2014
The city of Saqqez has a population of 140,000 people, making it one of the largest cities in Iran. Population growth, consumerism, and change in eating habits, such as the increased use of packaged products, is causing the accumulation of waste in this city to increase. In this study, the selection of a waste landfill site for Saqqez focused on 13 layers of geography information that was used by the IDRISI and Arc GIS software. Different models of the analytic multi-criteria decision-making process, such as an analytical hierarchy process (AHP), weighted linear combination (WLC), and Boolean logic, were used to manage layers to establish specific databases for urban waste landfills. Satellite images (Landsat ETM+ and SPOT 5), proposed sites and a land use map of the study area were also used. The results of this study indicated that two methods (AHP and WLC) in the early stages had better decision-making powers for locating landfill sites when compared to Boolean logic. Overlapping and compounding the similarities between these models in Arc GIS software, a 74-ha site was found. This site will be able to accept 130 tons of waste per day for the next 20 years. © 2013 Springer-Verlag Berlin Heidelberg.
Salmanpour S.,Tabari University of Babol |
Motameni H.,Islamic Azad University at Sari
Journal of Intelligent and Fuzzy Systems | Year: 2014
In this paper, the generalized intelligent water drops (IWD) algorithm is proposed to solve robot path planning problem. Path planning is modeled by IWD algorithm, because there is inherent similarity between this and finding most appropriate route in natural rivers, that occurs by interaction between water drops and the river bed. The proposed algorithm has two levels; first level, finds the best global feasible path. Second level, performs local search at relatively near distances of global path and reduces its length and time to reach optimal solution. The IWD algorithm, like other inspired nature algorithms, has not a mechanism to deal with constrained optimization problem in its original version. So, a mechanism has been proposed based on repair of infeasible solutions. In this mechanism, a fuzzy inference system is proposed for selecting the best possible infeasible solution and then the local search operator repairs any of them in violation locations. Another innovation of this paper provides a mechanism to local soil update, which is based on fuzzy systems and is independent of size and complexity of environment and its soil altering will be defined in fixed range. Simulation result shows ability of IWD algorithm in finding of the optimal path.