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Number of pages: 46 Category: Computer Engineering

Dissertation for Master's Degree in Computer Engineering - Artificial Intelligence Abstract Data clustering is a method for classifying similar data, which has been used for many years in various sciences and many algorithms have been designed in this field. Recent clustering research leads to hybrid methods that are more robust and accurate. Hybrid clustering tries to first ...

Number of pages: 102 Category: Industrial Engineering

Master's thesis in the field of automation engineering and precision instruments, abstract presenting a new method in information clustering using a combination of bat algorithm and Fuzzy c-means. The similarity between data within each cluster is maximum and the similarity between data within different clusters is minimum. Fuzzy c-means is also a fuzzy clustering technique that ...

Number of pages: 105 Category: Computer Engineering

A master's thesis in the field of computer-software engineering. Software vulnerabilities can lead to financial and information losses. Due to the limited financial and human resources, prioritizing the damages is very important. Before this research, a large number of researchers have classified vulnerabilities based on empirical and statistical knowledge. However, the variable ...

Number of pages: 120 Category: Computer Engineering

Master's Thesis in Computer Engineering - Software Orientation Abstract Clustering can be considered one of the most important steps in data analysis. Many clustering methods have been developed and presented so far. One of these methods that has been studied in recent studies is consensus clustering method. The goal of consensus clustering is to combine several initial ...

Number of pages: 154 Category: Physics

Abstract The differential equations that appear in physical problems are often non-linear, and their exact solution is necessary to obtain the solution. Since most of the nonlinear differential equations do not have an analytical solution, the numerical solution methods of these equations seem useful for things like plasma physics. For this purpose, in this thesis, the numerical ...

Number of pages: 103 Category: Industrial Engineering

Master's thesis in the field of automation engineering and instrumentation, abstract presenting a new method in information clustering using a combination of bat algorithm and Fuzzy c-means. The similarity between data within each cluster is maximum and the similarity between data within different clusters is minimum. Fuzzy c-means is also a fuzzy clustering technique that ...

Number of pages: 121 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree M. A) Field: Geography and Urban Planning Chapter 1 (Research Plan) 1-1- Introduction The establishment of any urban element in a specific physical-spatial location of the city is subject to specific principles and rules and mechanisms (mechanisms) which, if followed, will lead to the success and functional efficiency of that element ...

Number of pages: 133 Category: Industrial Engineering

Thesis for obtaining a master's degree in industrial engineering, Fall 2012 Abstract During the past years, many efforts have been made to reduce the cost of transportation by using different models.

Number of pages: 99 Category: Psychology

A master's thesis in the field of psychology and education of exceptional children, examining the dimensions of cognitive processing in students with learning disorders. The aim of this research was to examine the dimensions of cognitive processing in students with learning disorders. For this purpose, 120 children (82 boys and 38 girls) aged 7 to 13 years were selected by ...

Number of pages: 80 Category: Educational Sciences

Master's Thesis Field: Psychology (M.A) Orientation: Educational Abstract: The present study was conducted with the aim of investigating the relationship between students' resilience and their different personality traits and attachment styles. The statistical population of this descriptive study included all pre-university students of Beshagard city. The sample size was ...

Number of pages: 119 Category: Geography - Urban Planning

Master's Thesis in Urban Affairs Management Abstract Municipality is one of the most key organizations that plays an important role in providing urban services to citizens. By applying the knowledge of information technology and telecommunication systems as well as the ability of internal and experienced specialists in urban management, this organization has created a system ...

Number of pages: 166 Category: Computer Engineering

Computer Software Engineering Master's Thesis Abstract: Presenting a method for identity recognition based on the feature of the fractal dimension Introduction: There have been many techniques for identifying people since long ago. Meanwhile, biometric-based identity recognition systems are more accurate and reliable. These systems should be designed in such a way that they can ...

Number of pages: 108 Category: Psychology

Dissertation for the Master's degree ""M.A"" Major: Educational Psychology Farsi Abstract The purpose of this study was to determine the relationship between parenting methods and personality traits with resilience in adolescence. The statistical population of the research was female secondary school students of one Khorramabad district in the academic year of 1392-1393. The ...

Number of pages: 63 Category: Educational Sciences

Master's thesis in the field of psychology and education of exceptional children. The present study was conducted in order to compare the visual-spatial ability of children with non-verbal learning disorder and high-functioning independent children. In this research, a descriptive type of contextualization was used, which was implemented in two stages of selection (subjects and ...

Number of pages: 97 Category: Geography - Urban Planning

Dissertation for M.Sc degree in natural geography-geomorphology in environmental planning. Abstract The city expands in the geographical environment not based on capacity and facilities but on the basis of urgency and necessity. This issue is very noticeable in today's cities. It is noteworthy that the city must be in harmony with its natural location and it is essential that ...

Number of pages: 187 Category: Psychology

Dissertation to receive M.A. degree in educational psychology. Abstract Objective: The aim of the present study was to compare short-term memory, accuracy and concentration of 10 and 11-year-old children who learned and did not learn music. Method: The present research method was causal-comparative or post-event. The research sample consisted of 50 music students (with at least ...

Number of pages: 178 Category: Geography - Urban Planning

Dissertation for M.Sc Master's Degree in Remote Sensing and Geographical Information System - Water and Soil Resources Abstract: Urban heat islands are areas of the earth's surface that have a higher temperature than neighboring areas. The spread of this phenomenon varies in space and time. The creation of thermal islands and its spatial and temporal changes are mostly ...

Number of pages: 98 Category: Electronic Engineering

Master's thesis in electrical engineering, control trend, abstract of new methods of identifying errors in systems, such as the use of qualitative analysis of events, can lead to tangible and understandable results for everyone. The gas turbine system is one of the systems in which there is a possibility of many errors. And sometimes even modeling them with mathematical methods ...

Number of pages: 81 Category: Electronic Engineering

Dissertation for Master's Degree in Electrical Engineering (M.Sc) Abstract The power system stabilizer is added to the excitation system in order to improve the damping of the power system during low frequency disturbances. For large-scale power systems that include a large number of connected generators, setting the power system stabilizer parameters will be a complex and ...

Number of pages: 81 Category: Electronic Engineering

Dissertation for Master's Degree in Electrical Engineering (M.Sc) Abstract The power system stabilizer is added to the excitation system in order to improve the damping of the power system during low frequency disturbances. For large-scale power systems that include a large number of connected generators, setting the power system stabilizer parameters will be a complex and ...

Number of pages: 140 Category: Computer Engineering

Doctoral thesis in the field of computer engineering (artificial intelligence) Abstract Understanding and extracting information from images and videos is the common thread of the majority of problems related to machine vision. Finding the main and useful parts of a movie and modeling the actions between these parts is one of the main goals of movie analysis. In the last decade, ...

Number of pages: 85 Category: Computer Engineering

Dissertation for M.Sc. Abstract In this thesis, we have presented a new method in network processing with Ant algorithm. The model we used in the network space is a continuous two-way auction. Due to their simplicity and dynamics, these models are used in many algorithms used to control resources and schedule tasks. Many of these models have weaknesses in their response time ...

Number of pages: 104 Category: Computer Engineering

Master's Thesis of Computer Engineering - Computer Architecture Abstract With the advancement of electronic device manufacturing technology and the cost-effectiveness of large-scale sensor networks, wireless sensor networks provide research fields with rapid growth and great interest, which have attracted a lot of attention in recent years. Large-scale wireless sensor networks ...

Number of pages: 124 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.A.) Direction: Remote Sensing and Urban and Rural Geographical Information System Abstract: Subsidence phenomenon is one of the natural disasters that causes the reduction of underground resources such as underground water, oil, etc. One of the most important causes of land subsidence is the drop in static level and increase in effective ...

Number of pages: 61 Category: Computer Engineering

Dissertation for Master's Degree (M.S.c) Field: Computer Orientation: Software Abstract Today, the use of botnets as a tool for criminal activities with a large scope in computer networks against large targets such as a country has greatly increased. Bot is a distributed environment that is used for various attacks with a large volume. For this reason, the detection of this type ...

Number of pages: 123 Category: Electronic Engineering

Master's Thesis in the field of electrical engineering- control, abstract assessment of the transient stability of power systems using the data of phasor measurement units, quick assessment of security in power networks in emergency situations and the occurrence of various errors, is a vital thing to prevent collapse and create nationwide outages. Therefore, the evaluation ...

Number of pages: 89 Category: Computer Engineering

Dissertation for Master's Degree in Computer Engineering - Artificial Intelligence Abstract Image segmentation is a basic process in many applications of image processing and machine vision, which can be considered as the first low-level processing step in digital image processing. Image segmentation has various applications such as medical image processing, face recognition, ...

Number of pages: 100 Category: Computer Engineering

Master's thesis in the field of computer - software engineering. Abstract: The review of car insurance information has shown that factors such as the type of car used, having a driver's license, the type of license and its compatibility or non-compatibility with the vehicle, the amount of the insurance premium, the amount of insurance policy obligations, the quality of the car ...

Number of pages: 138 Category: Electronic Engineering

Master's thesis in telecommunications-systems, the abstract of the current research is about the issue of scalability in wireless sensor networks with imaging capability, which has analyzed, mathematically modeled and simulated the scalability by considering a relatively practical scenario of the sensor network, and based on the performance criteria of outage capacity and ...

Number of pages: 83 Category: Electrical Engineering

Dissertation for master's degree in electricity, power orientation Abstract: The production of electrical energy for power systems with the aim of minimizing the total cost of production for active units in the power network is one of the most important topics for today's modern systems. In other words, the purpose of economic load distribution is optimal and appropriate ...

Number of pages: 87 Category: Computer Engineering

Master's Thesis in the field of Computer Engineering-Artificial Intelligence Abstract Inferring gene regulatory networks from Microarray time series data by dynamic Bayesian networks Genetic regulatory networks are a set of gene-gene relationships that create a cause and effect relationship in gene activities. Our knowledge about these networks plays a very effective role in ...

Number of pages: 85 Category: Computer Engineering

Computer Engineering Master's Thesis Abstract Web development that lacks an integrated structure creates many problems for users. Not finding the information needed by users in this huge warehouse is one of the problems of web users. In order to deal with these problems, web personalization systems have been provided, which by finding the behavior patterns of users without their ...

Number of pages: 80 Category: Computer Engineering

Dissertation for Master's Degree in Artificial Intelligence Abstract One of the most complex tasks in digital image processing is image segmentation. Due to increasing attention to this technique by researchers and turning it into a vital role, it is used in many practical fields such as medical applications. Today, in modern dentistry, techniques based on the use of computers, ...

Number of pages: 110 Category: Computer Engineering

Dissertation for M.Sc degree: Software Abstract One of the challenges in the field of sensor networks is how to route and collect information from network nodes. Since these networks are limited in terms of energy and processing resources, they need special methods for routing and transmitting information that have low energy consumption. To make the issue clearer, in ...

Number of pages: 79 Category: Computer Engineering

Master's Thesis Field: Computer Engineering Major: Software Abstract Expensiveness of information is a major problem in the current web. To deal with this problem, web personalization systems have been provided that adapt the content and services of a website to people based on their interests and browsing behavior. A fundamental component of any web personalization system is ...

Number of pages: 75 Category: Computer Engineering

Dissertation for M.Sc Computer Engineering - Software Abstract: The rapid growth in demand for computing power has led computing to move towards a cloud computing model based on massive virtualized data centers. Cloud computing allows users to provide computing resources efficiently and dynamically to meet their needs. The use of these resources certainly requires payment by the ...

Number of pages: 122 Category: Electronic Engineering

Abstract The reduction of fossil fuel resources, adverse environmental effects and low efficiency of traditional power grids have increased the desire to produce electricity near the load and the level of the distribution network using renewable sources. One of the basic solutions to solve the problems raised is the use of microgrids. A set of small sources of energy production ...

Number of pages: 117 Category: Electronic Engineering

Electronics Department of Master's Thesis Abstract: Speaker identification is one of the topics discussed in speech processing. Speaker identification is the process of identifying who is really speaking and when using the speech signal. The goal is to design a system that can identify the change in the speaker and tag each speaker's speech for the system. It means to specify ...

Number of pages: 132 Category: Computer Engineering

Master's Thesis in Computer Engineering (Artificial Intelligence) Abstract Extracting useful patterns from data sets is one of the challenging topics in data mining. On the other hand, in high-dimensional data, extracting a small set of emerging patterns with strong predictive ability is one of the important issues in creating a classifier based on emerging patterns. In the real ...

Number of pages: 207 Category: Computer Engineering

Master's Thesis in Computer-Software (M.Sc) Abstract The quality of service in wireless sensor networks is very different compared to traditional networks. Some of the parameters that are used in evaluating the quality of service in these networks are: network coverage, optimal number of active nodes in the network, network lifetime and energy consumption. In this thesis, three ...

Number of pages: 128 Category: Civil Engineering

Master's thesis in the field of civil engineering, soil and foundation, in this research, the bearing capacity of the conical pile group and the cylindrical pile group with the same volume are calculated and compared. Due to the lack of numerical studies and modeling by software for conical piles compared to laboratory tests in this field, in this research, the modeling of the ...

Number of pages: 82 Category: Civil Engineering

Dissertation for receiving M.SC Master's degree Major: Water Engineering Abstract: Dams are the largest man-made structures. Their design often stems from their unique nature and the consequence of failure, which is certainly greater than the collapse of other types of structures. The stability of dam body and foundation structures can be analyzed and checked in various ways. ...

Number of pages: 120 Category: Electronic Engineering

Field of study: Electricity, specialization: Telecommunication. Dissertation Abstract In this thesis, the problems of multi-objective and multi-sensor tracking are investigated using the rule of random particle collection. The regression probability density hypothesis (PHD) is implemented dynamically. This dynamic mode is performed by combining the transfer bias value with the ...

Number of pages: 123 Category: Chemical - Petrochemical Engineering

An academic thesis for receiving a master's degree in chemical engineering, environmental orientation. Among the models that are able to make successful predictions for the performance of reverse osmosis membranes, that is, the amount of separation and flow flux in a wide range of physical conditions (membrane and solution) and laboratory conditions (pressure and concentration), ...

Number of pages: 140 Category: Civil Engineering

Master's thesis in the field of road, building and environmental engineering - hydraulic structures Abstract In this research, nonlinear wave differential equations are solved by the local RBF-DQ numerical method. These differential equations are in the form of Laplace's equation (as a governing equation) and nonlinear boundary conditions on the free surface; The basis of the ...

Number of pages: 105 Category: Chemical - Petrochemical Engineering

Master's Thesis in Chemical Engineering (Gas Orientation) Abstract Laboratory Investigation of Gas Dehumidification Using Triethylene Glycol Solution in Hollow Fiber Membrane Contactors In this study, two hollow fiber membrane contactors with different types of Polyvinylidene Fluoride (PVDF) and Polypropylene (PP) fibers have been used for gas dehumidification by Triethylene ...

Number of pages: 184 Category: Chemical - Petrochemical Engineering

Master's Thesis in Chemical Engineering, Thermodynamics and Kinetics Abstract: A major part of the final properties of the product in emulsion polymerization is determined by the particle size distribution. In this project, an accurate model based on population balance equations (zero-one model) which includes the phenomena of nucleation and particle growth has been chosen to ...

Number of pages: 193 Category: Electronic Engineering

Master's Thesis Electricity- Pollution power of big cities has become an acute issue for years. Expert research shows that the main cause of pollution in cities are cars with internal combustion engines. Combustion vehicles have many disadvantages, among which we can mention things such as dependence on a specific type of energy (oil), production of greenhouse gases, production ...

Number of pages: 145 Category: Chemical - Petrochemical Engineering

Dissertation for obtaining the master's degree ""M.Sc."" (Chemical Engineering - Thermodynamics and Kinetics) Abstract: Keywords: Computational fluid dynamics, bubble, continuity and failure, floating bed reactors, multiphase systems, vertical vertical flows, PBM, DQMOM, recently liquid gas floating bed reactors have received attention due to their wide application in chemical, ...

Number of pages: 108 Category: Electronic Engineering

Master's Thesis in Electrical Engineering, Power Orientation Abstract In this thesis, while investigating the phenomenon of saturation in protective CTs, the problems related to the detection of this phenomenon and the compensation of CT secondary current have been discussed, and in order to solve the problems raised, methods have been introduced and the results have been ...

Number of pages: 159 Category: Electronic Engineering

Dissertation for receiving a master's degree in electrical engineering, electronics orientation. Chaos theory was founded at the end of the 20th century by Lorentz. Chaos science investigates non-linear systems and their behavior in different conditions. Since the systems around us are mostly non-linear, by creating feedback in them, they may show chaotic behavior, so chaos ...

Number of pages: 100 Category: Medical Sciences

In order to receive a general doctorate in the field of dentistry Abstract Introduction: This study was conducted in order to investigate the effects of cedar honey in the treatment of atrophic lichen planus and oral erosion. Materials and methods: The current research is a clinical trial study that continued from September 2018 to September 2019. 30 patients (2 men and 28 ...

Number of pages: 119 Category: Telecommunication Engineering

A master's thesis in the field of electrical-telecommunications engineering (field) Abstract: Investigation of coupling effects in arrays of wire antennas for use in passive radar has always been concerned with detecting targets that are immune to visual vision. Electromagnetic waves can be used to identify targets. The first step to receiving waves is a suitable antenna array. ...

Number of pages: 70 Category: Chemical - Petrochemical Engineering

Master's Thesis on Simulation and Process Design Abstract So far, many methods have been presented to remove phenol from wastewater, among them, the membrane bioreactor process has received attention in the last decade. The use of hollow fiber membrane contactor in this process is to avoid direct contact between two phases and increase the surface-to-volume ratio. In the current ...

Number of pages: 118 Category: Chemical - Petrochemical Engineering

Master's Thesis in the field of Chemical Engineering (no orientation) Abstract of the laboratory study of the wear phenomenon of liquid containing sand in pipelines. The studied fluid consists of two phases, liquid and solid. The liquid phase is water, and sand particles form the solid phase. In this research, the parameters affecting the wear rate, including: fluid speed, sand ...

Number of pages: 155 Category: Electrical Engineering

Dissertation for receiving a master's degree in electrical engineering, electronics orientation. Chaos theory was founded at the end of the 20th century by Lorentz. Chaos science investigates non-linear systems and their behavior in different conditions. Since the systems around us are mostly non-linear, by creating feedback in them, they may show chaotic behavior, so chaos ...

Number of pages: 118 Category: Electrical Engineering

The abstract of the current research is about the issue of scalability in wireless sensor networks with imaging capability, which has analyzed, mathematically modeled and simulated the scalability by considering a relatively practical scenario of the sensor network, and based on the performance criteria of outage capacity and ergodic capacity of the network. Scalability is ...

Number of pages: 90 Category: Chemical - Petrochemical Engineering

Master's Thesis of Polymer Science and Technology Engineering Abstract Urethane-acrylate resins are of interest due to their low viscosity and flame retardant properties and relatively easy curing. On the other hand, natural fibers with renewable resources, low price, low density and high special properties have a special ability to be used in composites. However, their ...

Number of pages: 118 Category: Electronic Engineering

Electronics Department of Master's Thesis Abstract: Speaker identification is one of the topics discussed in speech processing. Speaker identification is the process of identifying who is really speaking and when using the speech signal. The goal is to design a system that can identify the change in the speaker and tag each speaker's speech for the system. It means to specify ...

Number of pages: 94 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering, Applied Design, Abstract In this research, an analytical solution is presented to show the size dependence and the effect of temperature difference on nonlinear free vibrations and post-buckling behavior of microtubes containing current. Based on Euler-Bernoulli model, strain gradient theory, Couple's stress theory and von-Carman ...

Number of pages: 97 Category: Chemical - Petrochemical Engineering

Master's Thesis Abstract In this project, the coat cracker unit of Abadan refinery has been simulated using Hysys refinery software. In simulating and receiving information, feed properties and solving mass and energy balance equations have been used. Simulation data and operational data of Abadan Cat Cracker unit have been compared. Also, by changing some important operational ...

Number of pages: 106 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering, Energy Conversion, Abstract Most of the time, initial information and boundary conditions are not precisely defined and cause errors in the output of the problem. These initial values ??can be obtained through experiments and statistical methods. It is often not possible to study individual members of the society due to ...

Number of pages: 67 Category: Electrical Engineering

Dissertation for master's degree in electricity, power orientation Abstract: The production of electrical energy for power systems with the aim of minimizing the total cost of production for active units in the power network is one of the most important topics for today's modern systems. In other words, the purpose of economic load distribution is optimal and appropriate ...

Number of pages: 124 Category: Electrical Engineering

Dissertation for Master's Degree in Power System Abstract: The trend of reducing fossil fuel resources, adverse environmental effects and low efficiency of traditional power grids has increased the tendency to produce electricity near the load and the level of the distribution network using renewable sources. One of the basic solutions to solve the problems raised is the use of ...

Number of pages: 111 Category: Chemical - Petrochemical Engineering

Master's Thesis of Polymer Industry Engineering Abstract Phenolic resins have excellent dimensional, thermal, chemical and corrosion resistance. Also, the fugitives produced during the thermal degradation of this resin have low toxicity and, in addition, they have high charring. Phenolic resins, due to having desirable properties, are used in many fields such as internal parts ...

Number of pages: 70 Category: Electronic Engineering

Dissertation for Master's Degree in Medical Engineering Abstract Cardiac arrhythmias are one of the heart diseases that should be taken care of in patients admitted to the intensive care unit. Smartening the process of accurate diagnosis of heart diseases is a problem that has attracted the attention of researchers for years. In this research, an efficient method for selecting ...

Number of pages: 64 Category: Facilities - Mechanics

Master's Thesis of Mechanical Engineering-Applied Design Abstract In many applications, graphene (monolayer or multilayer) is used in the polymer matrix as a composite. In this research, ideal graphene with a hexagonal bond shape between atoms, located in a polymer matrix, with different boundary conditions, including gripped and simple, under biaxial external compressive ...

Number of pages: 122 Category: Electrical Engineering

Master's Thesis in the field of Electrical Engineering - Control Abstract Evaluation of the transient stability of power systems using the data of phasor measurement units by the efforts of Hanieh Mohammadi Rapid evaluation of security in power networks in emergency situations and the occurrence of various errors is a vital thing to prevent collapse and create nationwide ...

Number of pages: 76 Category: Facilities - Mechanics

Dissertation for Master's Degree in Applied Design Mechanics Abstract: Composites have received a lot of attention in recent decades due to their high strength and low weight. Such materials can fail due to static, impact, dynamic loading, etc., and the various failures that occur can cause a severe drop in strength in the structure. Engineers always think of using different ...

Number of pages: 84 Category: Facilities - Mechanics

Master's thesis in electrical engineering, control trend, abstract of new methods of identifying errors in systems, such as the use of qualitative analysis of events, can lead to tangible and understandable results for everyone. The gas turbine system is one of the systems in which there is a possibility of many errors. And sometimes even modeling them with mathematical methods ...

Number of pages: 87 Category: Electrical Engineering

Dissertation for Master's Degree in Electrical Engineering (M.Sc) Major: Power System Abstract Stabilizer is added to the excitation system in order to improve the damping of the power system during low frequency disturbances. For large-scale power systems that include a large number of connected generators, adjusting the power system stabilizer parameters will be a complex and ...

Number of pages: 207 Category: Electrical Engineering

Doctoral thesis of electrical engineering - Power Abstract Islanding of interconnected power systems, which is also known for isolating and breaking power systems, is the last line of defense to deal with the collapse of the system and prevent catastrophic incidents in the power network. The islanding of interconnected power systems is presented as an extensive control method as ...

Number of pages: 190 Category: Electrical Engineering

Master's Thesis Electricity- Pollution power of big cities has become an acute issue for years. Expert research shows that the main cause of pollution in cities are cars with internal combustion engines. Combustion vehicles have many disadvantages, among which we can mention things such as dependence on a specific type of energy (oil), production of greenhouse gases, production ...

Number of pages: 147 Category: Agricultural Engineering

Abstract Industrial development through the development of business clusters is one of the alternative approaches that have been developed and developing in different countries during the last two or three decades, and it has been placed on the agenda and policy of policymakers in the field of industry and industrial development. The implementation of industrial cluster ...

Number of pages: 124 Category: Facilities - Mechanics

Dissertation for master's degree in Applied Design-Dynamics and Control Abstract: Transverse instability is one of the common problems in high-speed rail vehicles, which occurs on rails without arches and due to the friction-creep nature of wheel-rail contact that creates non-conservative forces in the system. This phenomenon is called hunting, which is a type of ...

Number of pages: 144 Category: Facilities - Mechanics

Master's thesis in the field of mechanical engineering, energy conversion trend. Abstract: Considering that heat transfer is widely used in various fields of science, it is necessary to use wide recessed or raised surfaces due to physical and spatial limitations in electrical systems. The main purpose of using these surfaces is to increase heat transfer by increasing the ...

Number of pages: 115 Category: Facilities - Mechanics

Dissertation for M.Sc Master's degree, mechanical engineering-applied design Abstract With the emergence of composite materials, a huge progress was achieved in many engineering applications. Nevertheless, problems such as delamination, stress concentration, and discontinuous distribution of stress, the idea of ??creating a new type of composite materials in which properties ...

Number of pages: 99 Category: Telecommunication Engineering

Master's Thesis of Electrical-Communication Engineering Abstract Production and amplification of radio frequencies [1] is the heart of satellite communication and optical electronics applications. The telecommunications industry is looking for smaller and more efficient RF amplifiers at higher frequencies. Nanostructures meet these needs due to their unique characteristics. In ...

Number of pages: 98 Category: Electrical Engineering

Master's Thesis in Electrical Engineering, Power Orientation Abstract In this thesis, while investigating the phenomenon of saturation in protection CTs, the problems related to the detection of this phenomenon and the compensation of CT secondary current have been discussed, and in order to solve the problems raised, methods have been introduced and the results have been ...

Number of pages: 76 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering Field: Applied Design Abstract In this thesis, stability analysis of composite beam reinforced with carbon nanotubes on elastic support under axial force is investigated. The distribution of nanotubes is assumed to be uniform[1]. To determine the properties of materials reinforced with nanotubes, the results of molecular ...