List of Articles Location

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  1 - The impact Geomorphology in the Locating Urban
  Marzieh Mogholi
  Choose landfill is one of the most important steps in the management of municipal solid waste. With regard to environmental impact, economic and ecological landfill, the landfill must be done carefully and in a scientific process. In this study, to determine the appropr More

  Choose landfill is one of the most important steps in the management of municipal solid waste. With regard to environmental impact, economic and ecological landfill, the landfill must be done carefully and in a scientific process. In this study, to determine the appropriate location for Solid Waste Palm City Taqi using the capabilities of GIS tools have been implemented. Geographic information systems including the innovative methods used today to study the location. The selection criteria for landfill waste Mnayb places such as geology, access roads, slope, fault, maps, land use, urban and rural centers have been used.the current location is buried in the wrong zone. Manuscript profile
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  2 - The relationship of crime and geography
  nemat nhrughe Farhad allahverdi mahdi kazemi
  Today, it is one of the applied disciplines in forensic science and geography. Geography is referred to as a fundamental scientific discipline, because of the phenomena and processes that we go through we have to talk about the place where it was created and expanded an More

  Today, it is one of the applied disciplines in forensic science and geography. Geography is referred to as a fundamental scientific discipline, because of the phenomena and processes that we go through we have to talk about the place where it was created and expanded and eventually left or disappeared and its location conditions. To identify. One of these phenomena is "crime or crime". The existence and manner of crime in different places varies. So that the "conditions of place" are of great importance in the presence and absence, expansion or non-spread of mass. However, we must bear in mind that every place in different economic, cultural, political, and environmental dimensions has various components and variables that directly or indirectly influence the amount of spatial weight or location power. Therefore, the greater the power of the place, the less likely the crime will be. This fundamental article, with a descriptive-analytical approach, seeks to express the relationship between crime and geography, especially in the big cities of the present age. The importance of the research is that by explaining the relevant theories and perspectives it seeks to answer the question why crime is increasing in some places and in others it is decreasing. In fact, we seek to prove the hypothesis that there is a strong relationship between geographic space and crime that criminals screen their first thoughts in the context of the subject before considering committing the crime, taking into account the location conditions. Manuscript profile
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  3 - Spatial-physical structure management of in-city structures, by AHP method and fuzzy logic (Case study: region17 of Tehran)
  Nemat Hosseinzadeh Faraz  Estelaji Elham Amini
  Due to the central role of the city, Tehran has been associated with increasing population and density, and consequently in providing services and facilities in various fields, due to lack of and, in some cases, due to the lack of appropriate geographical distribution o More

  Due to the central role of the city, Tehran has been associated with increasing population and density, and consequently in providing services and facilities in various fields, due to lack of and, in some cases, due to the lack of appropriate geographical distribution of applications, there are shortcomings Is. The fuel filling stations network is one of the components of the municipal services network that acts as a fuel supplier to the intercity transportation sector, which is important in terms of traffic considerations, urbanization, safety and the environment. One of the most important factors surrounding fuel supply stations (petrol stations) is their proper location. Multi-criteria decision-making models (MCDMs) are now becoming an expanding tool for addressing complex spatial decision-making problems. There are several methods in making multi-criteria decisions. Studies and evidence show that multi-criteria decision-making methods, especially the combined methods between them, provide accurate results for spatial decision-making. Due to the high population density and the density of internal and external passage overnight and the passage to the adjacent areas, Tehran's region 17 shows the need for fuel efficiency and optimal location. Therefore, the purpose of this study was to determine the appropriate location of pump-gas stations in the 17th district of Tehran and to investigate the position of the existing sites in this area, using the GIS and utilizing the fuzzy AHP combined method. Not. The research method has descriptive-analytical and applied nature in this evaluation. In order to achieve these goals, suitable criteria, consistent with the studied area and different methods have been used. Finally, by using paired comparisons and experts' opinion and calculations by the fuzzy AHP method, the final weight of the criteria has been determined. The results of the integration of information layers in ARCGIS software, while identifying suitable locations for building new stations, have analyzed the location of gas station positions, which shows that each of the 2 existing locations in the 17th district of Tehran in an appropriate and optimal position they are not. Manuscript profile
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  4 - A Comprehensive Approach to Urban Disaster Management Based on Vulnerability Map and Risk Zoning Case Study: Tehran Municipal District 1
  وحید  اسماعیلی کیاسج   Kamran shahanaghi
  Natural Disasters have always been a part of life on our planet. With human society development, urban areas and Metropolises have not been safe from destructive effects and consequences of disasters. In addition to intensity and extent of disasters, vulnerability of so More

  Natural Disasters have always been a part of life on our planet. With human society development, urban areas and Metropolises have not been safe from destructive effects and consequences of disasters. In addition to intensity and extent of disasters, vulnerability of societies has remarkable dependence on proper urban infrastructures, strong structures, preventive programs and appropriate preparation in emergency-related organizations. Occurrence of an onset disaster like earthquake, usually leads to secondary damages in urban areas; they happen for an obvious reason and have specific outcomes. Identification of all significant reasons and consequences results in creating a vulnerability map for urban wards which could be a useful basis for preventive programs. On the other side, one of the most effective and efficient approaches to create preparedness and response plan disaster management organizations, is designing a relief chain with proper logistic modules and devoting responsibilities to authorities, based on data achieved from damage estimation studies. Hence, in this paper, a sequential approach is used to apply geographic information system and eliciate experts' knowledge of urban areas so as to create both damage estimation and vulnerability maps; These information. In turn, help designing disaster management cycle, specifically, Preventive, preparedness and response programs for an urban area. In order to create a better perceptive of the proposed approach, Tehran municipality district (1) is used as a real case study and its vulnerability to a hypothetical earthquake is estimated to create disaster management program. Manuscript profile
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  5 - Optimization of LZ78 compression algorithm in tracing location of mobile communication users
  M.R. mirsarraf Mohammad Hakkak
  For location updating of mobile users, two compression algorithms, namely, LZ78 and proposed compression algorithm (modified LZ78) are introduced in this paper to be used in PCS networks. Some problems related to using these algorithm are the usage of memory of dictiona More

  For location updating of mobile users, two compression algorithms, namely, LZ78 and proposed compression algorithm (modified LZ78) are introduced in this paper to be used in PCS networks. Some problems related to using these algorithm are the usage of memory of dictionary in mobile users and HLR data base as well as the ambiguity about the last location of mobile users due to delay in location updating caused by the compression algorithm. The advantage of these algorithms is reduction at the number of location updatings for a mobile user. With some modifications in the LZ78 algorithm, its problems in implementation are reduced and its usage for PCS networks is enhanced. These changes result from combining this algorithm with distance based location updating algorithm and sending symbols corresponding to some limited neighborhoods identity instead of cell number by compression algorithm For comparison between LZ78 and proposed modified algorithm, we use simulation technique. The simulation program have two structures for PCS network, namely, square cells and hexagon cell networks. For mobile users, we considered two movement pattern: one is directional and the other is omnidirectional movement pattern. The outputs of the simulation program are the number of location updating, the maximum ambiguity of user location and size of dictionary for compression algorithms. Comparing the two algorithms by simulation, we observe that in the modified LZ78 algorithm the parameters of location updating number, maximum user ambiguity and size of dictionary are lower than those in the LZ78 algorithm. At the end of the article, cost of location management of mobile user versus call to mobility ratio (the average number of call toward user to the average number of its movement) is calculated. By comparing location management for LZ78 algorithm, modified LZ78 and distance based location updating algorithm, we observe that the cost of location management is reduced for modified LZ78 compression algorithm. Manuscript profile
• Open Access Article
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  6 - Fault Location Algorithm in Practical Radial Distribution Systems Based on Voltage and Current Recorded by Digital Fault Recorders
  S.  Jamali V. Talavat
  This paper presents a new impedance based fault location algorithm for practical radial distribution systems. The algorithm uses the fundamental components of voltages and currents recorded by a digital fault recorder usually installed at the head of main feeders. At f More

  This paper presents a new impedance based fault location algorithm for practical radial distribution systems. The algorithm uses the fundamental components of voltages and currents recorded by a digital fault recorder usually installed at the head of main feeders. At first, the algorithm estimates the average loading and power factor of distribution transformers by using the pre-fault voltage and current phasors. Then from the post-fault voltage and current phasors, the preliminary candidates for fault location are determined by searching all the feeder sections. Finally, the actual fault location is determined by checking operated fuses/sectionalizers, or fault indicators. The fault location method has been developed as a software package named DFL (Digital Fault Locator) in “Electricity Networks Protection and Automation” research laboratory of Iran University of Science and Technology (IUST). The accuracy of the proposed algorithm has been validated by several fault conditions carried out on a 205-node 20 kV practical radial distribution feeder. The results of the developed software have shown very remarkable accuracy in fault location as presented in the paper. Manuscript profile
• Open Access Article
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  7 - Fault Location in Distribution Networks Using a Combination of Impedance Base Method and Voltage Sag
  Mohammad Daisy R. Dashti
  Load taps, laterals, and sub laterals are different branches of power distribution (PD) networks. In PD systems, reliability indices and their efficiency are improved using an accurate method in fault locating. In this paper, a new combined method for locating single, d More

  Load taps, laterals, and sub laterals are different branches of power distribution (PD) networks. In PD systems, reliability indices and their efficiency are improved using an accurate method in fault locating. In this paper, a new combined method for locating single, double and three phase faults to ground is proposed in PD networks. In this article, for finding the possible fault locations, an impedance based fault-location algorithm is used. Then, for determining the faulty section, the new method is proposed using voltage sag matching algorithm. In this method, the possible fault locations are determined, after occurrence of single and double phase faults to ground, using an algorithm which is impedance based fault-location algorithm. Separately, the same fault is simulated in possible locations. Then, at the beginning of a feeder, the voltage is saved and the amplitude and angle of the voltage differences are determined and accordingly, an online data bank is generated. Then, the obtained and recorded amplitude and angle of the voltage differences (at the beginning of the feeder) is compared with that data bank, for the actual fault. By the matching value of each possible fault location, the real location of fault is determined. Compared to the other counterparts, the proposed method is more accurate in locating faults and less sensitive to the fault resistance. Manuscript profile
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  8 - A comparison of construction and location of mosques of the early Islamic period and mosques of the Qajar period based on Quran verses
  هانیه  اخوت
  The mosque is a subject that the Quran has dealt with in a comprehensive manner. One of the aspects of mosque emphasis in the Quran that has received less attention is the issue of construction and location of mosques. This article has been written using the method of d More

  The mosque is a subject that the Quran has dealt with in a comprehensive manner. One of the aspects of mosque emphasis in the Quran that has received less attention is the issue of construction and location of mosques. This article has been written using the method of descriptive-analytical research and by selecting a case study of the early mosques of the Islamic period and mosques of the Qajar period in Iran. This article has been prepared with the aim of comparative study of two different periods of mosque construction in Iran and also the evolution of their construction based on Quranic verses and Islamic traditions. To analyze the subject, 8 principles of mosque construction were extracted from Quranic verses and Islamic narration, and then the extent and manner of the effect of the extracted principles on the mosques of the Islamic period and Qajar mosques were measured and finally comparatively examined. Based on the results of the research, the Quranic principles of mosque construction were classified into 8 principles, all of which were observed in the samples of early Islamic mosques. If in the mosques of the Qajar period, 4 principles have been observed, which include stability and strength (even in this case, the use of lower quality materials and the use of rapid construction techniques, the strength of mosques compared to previous periods and to Especially in the early Islamic period. Manuscript profile
• Open Access Article
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  9 - The effect of ethnic identity and the geographical location of the house on the academic performance of students
  Saed   Abadian
  Ethnicity refers to a group that is distinguished from other social groups that have racial continuity and correlation with basic anatomical features such as religion, religion, language, customs and historical and cultural heritage. These factors cause a person to use More

  Ethnicity refers to a group that is distinguished from other social groups that have racial continuity and correlation with basic anatomical features such as religion, religion, language, customs and historical and cultural heritage. These factors cause a person to use them to establish a relationship with other ethnic groups or individuals and groups. Ethnicity has both subjective and objective components, which include: subjective interest and awareness of identity, belonging, common resources, Common interests, objective cultural commonalities in the language of the historical history of religion and the common land. Set against the backdrop of a politically motivated ethnic hatred between the northern region and the rest, this study shows the relationship between students' regions of origin and their academic performance in world higher education to help support students' appropriate support and healthy study habits. The thematic analysis of the researchers' data showed that students believe that effort is more important in academic performance regardless of the region of origin. Implications for educational policy that utilize healthy study habits to increase student achievement, retention, and self-efficacy around success are discussed. Manuscript profile
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  10 - Using Fuzzy Values in the Whale Method to Solve the Problem of Locating Terminal Locations
  Mehdi  Fazli haasan hoseinzadeh
  In this article, fuzzy values are used in the meta-heuristic method to locate the location of the terminal facility. This article is written based on a modern method inspired by nature called Whale Algorithm and it is tested on scientific optimization problems and model More

  In this article, fuzzy values are used in the meta-heuristic method to locate the location of the terminal facility. This article is written based on a modern method inspired by nature called Whale Algorithm and it is tested on scientific optimization problems and modeling problems. To evaluate the performance of the proposed method, fuzzy coefficients have been applied to solve the location allocation problem, in such a way that the hypotheses of the problem, fuzzy random variables and the capacity of each center are considered unlimited. According to the results of this research, the problem of locating the terminal locations is practically solved and the optimal location of these facilities is proposed in the real world. Also, the numerical optimization results show that the proposed method has a better performance than similar methods Manuscript profile
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  11 - Determining the Location of Lightning Strike Using Electromagnetic Time Reversal (EMTR) Method and Machine Learning
  Abbas Hamedooni Asli m.h. m.
  <p>Determining the location of lightning strikes (LLS) is one of today's challenges in various fields, especially in the fields of electricity and electronics. To determine the location of the lightning strike, classical methods were used previously; however, the use of More

  <p>Determining the location of lightning strikes (LLS) is one of today's challenges in various fields, especially in the fields of electricity and electronics. To determine the location of the lightning strike, classical methods were used previously; however, the use of electromagnetic time reversal (EMTR) method has also become popular recently. According to the calculation of the complete waveform of the field using the EMTR method, the accuracy in determining the location of the lightning strike has significantly increased compared to the traditional methods. In the electromagnetic time reversal method with the help of finite difference time domain (FDTD), the transient electromagnetic field produced by the lightning channel is calculated first. After the time reversal of the wave, it is re-emitted from the sensor or sensors to its source and again with the help of FDTD, The re-emission electromagnetic field in the desired environment is calculated. With the electromagnetic field of the environment, using criteria (such as maximum field amplitude, maximum energy and entropy, etc.), the location of the lightning strike is determined. In traditional methods, it is quite difficult to determine the uniqueness of the final response in environments with different characteristics, and the use of at least three sensors is mandatory. In this paper, to overcome these limitations, a method based on the combination of machine learning and three-dimensional EMTR (3D-FDTD) is proposed to determine the lightning strike location. First, the three-dimensional time domain finite difference method is used to calculate the electromagnetic field of the environment and using EMTR, the back-diffusion electromagnetic field (again with the help of 3D-FDTD) is calculated in the entire environment. In this way, the necessary data for the production of RGB image profiles is prepared. Then VGG19, a pre-trained convolutional neural network (CNN), is used to extract image features. Finally, a fitting layer is used to determine the location of the lightning strike. The proposed method is simulated and implemented in MATLAB and Python, and the results show the effectiveness of the proposed method to determine the location of lightning strikes in a three-dimensional environment without requiring the use of at least three sensors.</p> Manuscript profile