Download more than 100 examples of thesis, proposal and project topics about three phase inverters in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
Abstract Common-mode voltages and currents are generated due to the creation of parasitic capacitance between solar cells and their frame, which is usually grounded. These capacities are usually modeled as capacitors between the negative terminal of the solar cell and ground. In solar cells that are connected to the grid through a transformer, the electrical insulation of the ...
Dissertation to receive a master's degree ""M.Sc"" in the field of electrical engineering, power, high voltage, abstract. Inverters can produce single-phase and three-phase ac voltages from a constant or variable dc voltage. There are various methods to control the output voltage of the inverter, which is introduced in this thesis from an inverter system with solar panel input. ...
Abstract: This thesis proposes a new control strategy to control single-phase distributed generation system DG [1] connected to the grid based on Lyapunov stability theory. The main idea in this strategy is that a Lyapunov function similar to energy is defined by considering different states of the distributed generation system and then the control law that makes the time ...
Dissertation for receiving the master's degree ""M.Sc"" in the field of power electrical engineering Abstract Inverters can produce single-phase and three-phase ac voltages from a constant or variable dc voltage. There are various methods to control the output voltage of the inverter, which is introduced in this thesis from an inverter system with solar panel input. In this ...
Dissertation to receive a master's degree in electrical engineering, power trend. Abstract: Flexible power transmission systems, which are known as FACTS[1] compensators, are modern tools that have been used in power systems to strengthen the controllability and develop the transmission capacity of power networks based on power electronic converters during the last decade. In ...
Dissertation for M.Sc)) Electrical Orientation - Power Abstract Common-mode voltages and currents are generated due to parasitic capacitance between solar cells and their frame, which is usually grounded. These capacities are usually modeled as capacitors between the negative terminal of the solar cell and ground. In solar cells that are connected to the grid through a ...
Dissertation to receive a master's degree in electrical engineering, power orientation. Abstract: Flexible power transmission systems, which are known as FACTS[1] compensating devices, are modern tools that have been used in power systems to strengthen the controllability and develop the transmission capacity of power networks based on power electronic converters during the last ...
Master's Thesis in Electrical Engineering - Power Abstract Nowadays, pulse width modulation techniques are widely used to control the output voltage and current of AC/DC converters. Among these methods, space vector modulation (SVM) has received a lot of attention due to its simplicity and favorable properties in controlling three-phase inverters digitally. The limitation of ...
Master's Thesis of Electrical Engineering - Power Abstract: Induction motor condition monitoring is an absolutely necessary and important technology to detect various defects at the initial stage. which can prevent the spread of unexpected defects in the initial stages. Approximately 30-40% of induction motor defects are related to stator defects. In this thesis, a comprehensive ...
Dissertation of the master's course in electrical field (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are examined and the factors that cause them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, i.e. the ...
Dissertation of the Master's course in the field of electricity (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are first examined and the factors causing them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, ...
Master's Thesis on Energy Conversion Abstract: Increasing heat transfer as well as increasing the efficiency of energy storage systems due to the limitation of natural resources and with the aim of reducing costs has always been one of the most basic concerns of engineers and researchers. This is especially important in fluids due to the small thermal conductivity coefficient. ...
Dissertation for Master's Degree in Industrial Management, Financial Orientation Abstract After the Islamic Revolution and 8 years of holy defense, the economic situation was such that the government decided to pay subsidies to energy carriers in order to help the vulnerable and grow. In the following years, due to the sufficient economic growth and strengthening of the ...
Dissertation for receiving a Master's degree (M.Sc) major: applied chemistry Persian Summary Raloxifene is used to treat breast cancer and infertility related to oligomenorrhea or secondary amenorrhea. Raloxifene is a new treatment that has recently become available for the prevention of osteoporosis of the spine. This medicine is taken as one pill a day. In some ways, this drug ...
Dissertation to receive a master's degree ""M.Sc"" in the field of electrical engineering, power systems trend Abstract Today, significant advances in semiconductor technology and the emergence of high-power switches that have the ability to be turned off by a control signal on the one hand and the better efficiency of multi-level converters compared to two-level converters on ...
Master's Thesis in Mechanical Engineering, Energy Conversion, Abstract: Thermal energy storage and phase change materials for use in heating and cooling systems of buildings has become an important issue in the last 20 years. When there is a mismatch between energy production and its consumption time, the issue of energy storage becomes important. In the present work, the fluid ...
Dissertation of Master's Degree in Civil Engineering – Earthquake Engineering 2013 Abstract: Concrete beam and slab bridges with neoprene supports are among the most common highway bridges in the country.
Chapter 1 1-1-Introduction: Common fluids such as water, oils and ethylene glycol, which are usually used as heat transfer media, have a limited ability in terms of thermal properties, which is the first obstacle to compress and increase the efficiency of heat exchangers. One of the ways to improve heat transfer is to add particles to the fluid. This method is used for fluids ...
Dissertation for master's degree in the Department of Geography and Urban Planning Abstract One of the phenomena that today's cities, especially large cities, are facing is the phenomenon of high-rise construction. The rapid and uncontrolled growth of the population in cities and the consequent need for housing on a large scale, on the one hand, and preventing the horizontal ...
Master's degree thesis Industrial Engineering - Socio-Economic System, February 2013 Abstract During the last decades, electric energy, along with other factors of production, plays a decisive role in the country's economic growth.
To receive a Ph.D. in the field of General Psychology Abstract Objective: This research was conducted with the aim of comparing the effectiveness and continuity of the effect of schema therapy and metacognitive therapy in a group manner on reducing symptoms, social health and quality of life of students with social anxiety disorder. Method: The current study was ...
Master's Thesis in Geography and Tourism Industry Abstract The topic of tourism and the tourism industry in the contemporary world, especially in developed countries, has grown very significantly in line with other industries and economic sectors. Today, many countries in the world have understood the wide dimensions of the tourism industry in terms of production, employment and ...
Dissertation for Master's Degree in Psychology (M.A) Major: Clinical Abstract Considering that addiction is one of the most common psychiatric disorders, ""Cognitive Therapy"" is a tool that therapists use to control and treat addiction by influencing thoughts and beliefs. For this purpose, the present study was conducted with the aim of investigating the effectiveness of ...
Master's thesis in information technology management, comprehensive quality trend, first chapter, introduction, the emergence of the global village, which has been in existence for several decades, has brought about tremendous changes in matters related to the management and organization of organizations, which unfortunately, not only did our country not contribute to its ...
Dissertation for Master's Degree (M.A) in Business Administration, Administrative Transformation, Abstract Nowadays, in addition to research and education, universities play a role in the new mission of participation in the economic development of society. In the current research, an attempt has been made to explain the process of commercialization and the results of university ...
Dissertation for M.Sc Master's Degree in Remote Sensing and Geographical Information System - Water and Soil Resources Abstract One of the important issues in crisis management of unexpected natural events, especially earthquakes, is optimal location in order to accommodate citizens during or after an accident. One of the major problems of the organizations involved in urban ...
Dissertation for receiving a master's degree in the field: political geography. Abstract: The development of communication in the form of virtual space communication, the possibility of information exchange, access and access of people and devices to each other through the Internet at the same time, has created a new paradigm in human life, which is considered as an advantage ...
Dissertation for master's degree in electrical engineering, power orientation. Abstract The limitation of fossil fuel resources and the possibility of running out of fossil energy reserves, global warming, environmental pollution, price instability, as well as the increasing need of industrial and urban centers for energy, have made the international community think of suitable ...
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 ...
Dissertation for receiving a Master's degree (M.Sc.) major: environment - statement of the problem With the invention of the steam engine, mankind moved from the stage of pastoral and agricultural economy to the era of the industrial revolution. With industrial development, the traditional fabric of societies was transformed, cities expanded and villages lost prosperity due to ...
Master's Thesis of Physical Education and Sports Sciences (Exercise Physiology) Abstract The purpose of this study was to study the effect of omega-3 supplementation during an increasing aerobic training period on the response of pro-inflammatory cytokines TNF-?, ?1-IL and insulin resistance index in type 2 diabetic men. For this purpose, 30 men with type 2 diabetes with an ...
Dissertation for receiving a master's degree in computer engineering, software orientation. The abstract of many software development costs, related to frequent tests, is in the phase of software maintenance, evolution and modification; Because making any change in the software code results in a new version, the correctness of which requires the design of new tests as well as ...
Master's Thesis Abstract The purpose of this research is to develop a strategic business plan for Behdeh tourism in order to provide an effective model. The research method is descriptive and relevant information and data have been collected using observation tools, document review, library sources and questionnaires. The statistical population of this research includes all ...
Dissertation for M.Sc degree, direction: relationship between man, machine, computer. Abstract: Today, with the rapid changes in technology, the level of security of individuals and organizations has also decreased, and this security has been invaded by profiteers and vandals. In the meantime, the increasing progress of biometric methods has made tremendous achievements in the ...
Dissertation for receiving a master's degree, field of study: electricity-power, orientation: electric machines in a synchronous generator, a dc current is applied to the rotor coil to produce a magnetic field. Then the rotor of the generator is rotated by a prime mover to create a rotating magnetic field in the machine. This magnetic field induces a three-phase voltage in the ...
Dissertation for Master's Degree in Power Direction Abstract Transmission lines protected by distance relays have limitations in the presence of series compensation. When the fault loop includes a series capacitor, the impedance seen by the distance relay is reduced. The level of compensation at any moment depends on the number of capacitors connected at that time. Therefore, ...
Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...
Master's Thesis in Computer Engineering (Software) First Chapter Preface 1-1- Introduction Some authors define data mining as a tool to search for useful information in a large amount of data. To perform the data mining process, we encounter various research fields, such as database, machine learning and statistics. Databases are essential for analyzing large amounts of data. ...
Dissertation in master's degree in motion picture directing Abstract This research is an attempt to find answers to questions related to the effect of watching cartoons encouraging drawing on the drawings of preschool children and whether the production and distribution of such programs have been done to the required extent or not. The point that has been taken into ...
Master's Thesis of Faculty of Technology and Engineering, Computer Department Abstract: The issue of concurrency control in databases is a necessary and important issue. Asynchronous execution of transactions in a database management system may lead to inconsistencies. Inconsistency is caused by incorrect values ??for existing data, due to conflict and interference of ...
Master's Thesis in Electrical Engineering (M.Sc) Major: Electronics Abstract: The increase in demand for portable systems has led the electronics industry to pay special attention to power consumption as an important criterion. Adders are important elements in many digital systems. For this reason, various digital collectors have been proposed in the current era, each of which ...
Master's Thesis of MBA, Financial Orientation Abstract: The progress of insurance is parallel with the economic development of the country. The development of insurance helps to improve the living conditions of the people of the country and preserve the national wealth and create large savings. When the economy of a country does not rely on insurance and its provision, the ...
Master of Business Administration Abstract The future of the world in the 21st century is full of competition, the development of emerging markets, uncertain environmental factors, the spread of superior technologies and the expansion of business. The condition for success in this field is to take advantage of the strengths and opportunities and face the weaknesses and ...
Department of Business Management - Policy Direction of Doctoral Dissertation Abstract of the studies conducted on strategies related to performance evaluation, shows that there is no comprehensive model of performance evaluation for regulatory organizations in Iran. The main purpose of this research is to design a pattern of performance evaluation strategies for the regulatory ...
Dissertation for obtaining a master's degree in computer engineering - software orientation. Abstract In all the projects that are carried out today, the discussion of management is a very decisive issue. Software projects are no exception to this rule. One of the most important aspects of software development is time and cost management. Considering that in the early stages of ...
Dissertation for Master's Degree in International Orientation Chapter 1: Research Overview 1) Introduction: The reason for the existence of any organization is to achieve a specific and specific goal. There is no such thing as an organization without a goal. Such a thing is not possible.
Dissertation for Master's Degree in Civil Engineering Majoring in Environmental Engineering Abstract In this research, the effect of biological reactions on the removal of organic substances in wastewater during transfer from production sources to the treatment plant in conventional networks and new small diameter networks was investigated. For this purpose, a part of these ...
Dissertation for receiving a master's degree in the field: civil engineering, orientation: structure. Abstract: In this paper, a new approach for optimal selection of acceleration maps and their scaling to perform dynamic time history analysis, to achieve the average response spectrum that has a suitable match and a small distance with the target spectrum and represents the ...
Master's Thesis of Structures Abstract In the welding process, after a stage of cooling of the body, due to the uneven distribution of temperature, stresses remain in it, which are called residual stresses. To obtain these stresses, the temperature history of the object during the welding process must be available. For this purpose, first a thermal analysis is done to obtain the ...
Dissertation for Master's Degree in Civil-Structural Engineering Abstract In our country, most of the structures and maybe all the conventional buildings are analyzed and designed independently, which means that these structures are mainly analyzed and designed by conventional software and considering a rigid or articulated support, and then the forces obtained at the base of ...
Dissertation for Master's Degree in Civil Engineering - Abstract Hydraulic structures in high dams of spillways, as one of the dependent hydraulic structures, have the important role of discharging the incoming floods into the dam reservoir with sufficient safety in free flow or under pressure downstream. In tunnel overflows where the flow is at a high speed and often under ...
Dissertation of the master's degree in the field: Electrical Engineering - Power trend. Abstract Today, despite the wide use of sensitive loads such as power electronics, computers and non-linear loads in distribution networks, the issue of power quality has received more attention. Most of these loads are sensitive to voltage changes, such as undervoltage and overvoltage, and ...
Master thesis M.Sc. Discipline: Civil Engineering, Orientation: Hydraulic Structures. Abstract River containment is generally done by dams and similar structures. The flow passing through these structures has a significant potential for erosion and scouring of susceptible beds. Relaxation ponds are designed and built mainly for the purpose of depleting flow energy and ...
Master's Thesis Abstract One of the issues that makes speech catchy and makes it solid and elegant is the proper use of rhetorical figures. A knowledgeable theologian, by mastering the prevailing environmental conditions and using different forms and diversity in speech, tries to express his words in a way that has the greatest effect on the audience. Among the issues that are ...
Dissertation for Master's Degree in Physical Education, Movement Behavior, Abstract The purpose of this research was to investigate the effects of general and specific video self-control feedback on the performance and learning of the fixed basketball shot in 15-17-year-old boys. The research method was semi-experimental. The research sample included 56 students aged 15-17 from ...
Dissertation for master's degree in civil engineering, structural orientation. Abstract Good bond strength between the old and new concrete surface is a key factor in the performance of concrete repairs. The purpose of this thesis is to investigate and evaluate the bond strength between the surface of the old concrete and the added concrete. In this thesis, a laboratory research ...
Dissertation for master's degree in electrical engineering, power orientation Abstract: The use of renewable energy to produce electrical energy has increased increasingly with the expansion of the use of flexible alternating current transmission systems (FACTS), to compensate for the quality of power and voltage, the range of use of these energies has increased.
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 ...
Dissertation for Master's degree (M.A) Major: Exercise Physiology Abstract Considering the lack of research on the effect of various types of resistance training on urinary protein excretion, the purpose of this study was to compare the acute and chronic effects of two types of continuous and intermittent resistance training on resting proteinuria and in response to exercise in ...
Dissertation for receiving a Master's degree (M.Sc.) specialization: Environment Abstract Gaseous liquids obtained from the refining of sour gases are also sour and contain a large percentage of hydrogen sulfide and mercaptans. Therefore, after distilling and preparing the products, it needs refining processes to remove or reduce the amount of sulfur and mercaptans present. ...
Dissertation for Master's Degree in Chemistry (Applied Chemistry - Polymer) Abstract: Ethylene polymerization was successfully performed in the presence of Phillips catalyst and in the slurry phase. In the continuation of the work, the effect of some effective parameters in polymerization, including the effect of trialkylaluminum, the effect of 1-hexane comonomer, the effect of ...
Master's Thesis in Nano Chemical Engineering Abstract The aim of this study is to separate cationic polyacrylamide from the waste water of Prodeh Tabas coal washing plant using the polymer membrane filtration process. The primary membrane was prepared using polyacrylonitrile (PAN) by phase inversion process, and then they were prepared using hydrolysis as chemical modification ...
Master's thesis in the field of physical education and sports science, movement behavior, thesis/dissertation abstract: The purpose of this research was to investigate the effect of hypnosis and physical training on the acquisition and memorization of the skill of a wrestling bend. The method of this research was semi-experimental.
Abstract: In electromyography studies, it is generally accepted to normalize the signals so that they can be compared and interpreted. But due to the lack of a standard method for normalization, there are many differences in the normalization method. These differences are related to the reference signal measurement method. The purpose of this study is to compare the reliability ...
Abstract Gas hydrates are a group of solid host compounds that play an important role in many processes such as gas storage, transfer and separation, heterogeneous catalysis and water purification. These crystals are formed at a temperature higher than the freezing point of water and high pressure. There are different methods to calculate the free energy difference: 1) ...
Master's Thesis in the field of Chemical Engineering Abstract Investigation of parameters affecting the production of alumina gel by sol-gel method Sol-gel method is one of the common methods that is widely used to produce different nanoparticles. In this method, a solution of initiators is mixed with water in the presence of a catalyst, and hydrolysis and polymerization ...
Dissertation for Master's Degree (M.Sc.) Field: Gas Processing and Transmission Engineering Abstract: Today, one of the problems in gas transmission lines is the gas hydrate phenomenon, which is a combination of light gases such as methane, ethane or carbon dioxide with water molecules under certain temperature and pressure conditions to form an ice-like substance that contains ...
Master's thesis in the field of chemistry, analysis, abstract. In this research, the synthesis of polymer nanoparticles of ion template using sedimentation method and for the separation and preconcentration of nickel ions from aqueous samples is reported. Nickel template polymer nanoparticles by dissolving stoichiometric amount of nickel nitrate and ligand ...
Dissertation for Ph.D. Persian Abstract Opioid system can interfere with various neurotransmitters such as dopaminergic, serotonergic, GABAergic, glutamatergic and noradrenergic system. It has been shown that opioids (such as morphine) cause an increase in the amount of dopamine in the mesolimbic system, and increasing the amount of dopamine in the nucleus accumbens plays a key ...
Master thesis in medical biotechnology Abstract: Introduction: Breast cancer is still the most common cancer among women. Biomarkers expressed in cancer tissue play an important role in diagnosis, prognosis and response to treatment. Cancer-testicular genes are often expressed in normal testicular tissue, but the expression of some of them has been reported in some types of ...
Master's thesis in the field: Chemical Engineering Abstract In this research, a comprehensive two-dimensional model based on the Finite Element Method (FEM) is proposed for modeling gas-solvent membrane contactors to remove carbon dioxide[1] from synthesis gas. Aqueous solution of monoethanolamine has been used as absorbent solvent stream and CO2/N2 gas mixture as gas stream. ...
Chemical engineering master's thesis without preface today simulation in processes can be an important tool to solve problems in different industries. A new idea that should be done in the real world by trial and error with a lot of costs and risks can be simulated in the environment of a strong software and the results can be used. Simulation can also be used to check and ...
Dissertation for Master's degree (M.A.) Major: Sports Management Abstract This research was conducted with the aim of investigating the relationship between emotional intelligence and communication skills with the mental health of employees of the General Department of Sports and Youth in Fars Province. The design of the research is descriptive and correlational, the statistical ...
A master's thesis in the field of chemical engineering, abstract of the laboratory study and modeling of calcium carbonate production from calcium chloride solution by absorbing carbon dioxide from industrial exhaust gases, by the efforts of Amin Alamdari, the effect of carbon dioxide concentration on the precipitation of calcium carbonate species and the kinetics of calcium ...
A master's thesis in the field of chemical engineering. Abstract of the laboratory study of the wear phenomenon of gas containing sand and liquid droplets in pipelines. For this purpose, a pipeline test device including: vertical and horizontal pipelines and various connections has been made. The studied fluid consists of three phases: gas, liquid and solid. The gas phase is ...
Dissertation for Master's Degree in Sports Physiology Abstract: Title: The effect of menstrual cycle on selected factors of physical fitness in non-athletic high school female students Background and purpose: Women face special conditions during their life, one of them is menstruation. Cycles that repeat every 28 days and have three phases: luteal, follicular and bleeding. Some ...
A master's thesis in the field of physiology, abstract comparing the effect of two different methods of protecting the myocardium during coronary artery bypass surgery by evaluating enzyme changes. In the present study, two different methods of protecting the myocardium during coronary artery bypass surgery, by evaluating the changes of enzymes affecting oxidative stress, ...