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Number of pages: 67 Category: Food and Packaging Industries

Persian Abstract Introduction: In the food industry, there is an increasing tendency to develop economic methods in order to prepare food products with high nutritional and sensory value. Drying is one of the most widely used methods for preserving fruits and vegetables. Citrus fruits are one of the most important tropical and sub-tropical fruits in the world, which are highly ...

Number of pages: 79 Category: Food and Packaging Industries

Dissertation for receiving a master's degree, specialization: food industry, abstract of osmotic dehydration, the process of removing water is based on the placement of food materials in a hypertonic solution. In this research, the combination of osmotic dehydration process for carrot pieces with a thickness of 0.5 cm at a temperature of 60 degrees Celsius and time intervals of ...

Number of pages: 81 Category: Food and Packaging Industries

Dissertation for receiving a master's degree, specialization: food industry, abstract of osmotic dehydration, the process of removing water is based on the placement of food materials in a hypertonic solution. In this research, the combination of osmotic dehydration process for kiwi pieces with a thickness of 0.5 cm at a temperature of 60 degrees Celsius and time intervals of ...

Number of pages: 217 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree (M.Sc.) Direction: Chemical Engineering Abstract It has been less than two centuries that the preparation and distribution of food in a commercial manner and gradually modernized today to where any type of product or product can be purchased in any season, but since food is a perishable substance, different methods have been created for long-term ...

Number of pages: 101 Category: Facilities - Mechanics

In order to obtain a master's degree in the field of mechanical engineering, energy conversion, abstract: In this thesis, the mass and heat transfer by integral method in the flow of natural displacement of a fluid with a very low frontal near the wavy inclined wall and under the magnetic field has been investigated. The wall is permeable and as a result, the fluid can be sucked ...

Number of pages: 106 Category: Agricultural Engineering

Dissertation for Master's Degree in Water Resources Engineering Abstract Nowadays, due to the issue of water crisis and the need for accurate planning, the use of statistical models and methods is increasing. The research conducted in this field has also shown the usefulness of using statistical methods. The use of different forecasting methods has many advantages, including ...

Number of pages: 123 Category: Electronic Engineering

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 ...

Number of pages: 78 Category: Electronic Engineering

Electrical-Electronics Engineering Master's Thesis Abstract In this thesis, we have used graphene nano-ribbons as an active layer of a solar cell for the first time. To simulate this cell, the non-equilibrium Green's function method was used in the mode space, and the effect of electron-photon interactions was calculated by means of Born's self-consistent approximation. To ...

Number of pages: 96 Category: Chemical - Petrochemical Engineering

Thesis for Master's degree in the field: Chemical Engineering Abstract Today, tea is one of the most popular drinks among the people of the world, especially in Iran, that's why drying tea leaves is essential for long-term storage. In this research, both a tea leaf and a pile of it were examined and dried. Green tea leaves were dried in the temperature range of 35 to 55 degrees ...

Number of pages: 125 Category: Biology - Environment

Master's Thesis in Electrical Engineering (M. S. C) Major: Power Abstract At present, fossil resources are rapidly running out, and with increasing concern about air pollution and global warming, experts are thinking of using cleaner energy sources and more compatible with the environment. Among these, wind power and solar energy are two types of huge renewable energy sources. ...

Number of pages: 71 Category: Biology - Environment

Master's Thesis of Power Electricity Abstract: Photovoltaic energy is one of the clean and efficient energies that is expanding rapidly. With the increase in the penetration percentage of these power plants in the power grid, problems arise that may lead to errors and problems in the distribution system. One of the problems that may occur is the issue of voltage increase at the ...

Number of pages: 122 Category: Biology - Environment

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 ...

Number of pages: 78 Category: Biology - Environment

Electrical-Electronics Engineering Master's Thesis Abstract In this thesis, we have used graphene nano-ribbons as an active layer of a solar cell for the first time. To simulate this cell, the non-equilibrium Green's function method was used in the mode space, and the effect of electron-photon interactions was calculated by means of Born's self-consistent approximation. To ...

Number of pages: 48 Category: Research Methodology

Introduction Since ancient times, energy supply has been a very important issue for human societies. In today's era, due to the industrial and technological advances that have a very important place in the daily life of people, the importance of the problem is manifested in a more obvious way. But the common sources of energy production, which are mostly non-renewable, will be ...

Number of pages: 209 Category: Biology - Environment

Thesis for Master's Degree in Energy Conversion (M.Sc.) Abstract The country of Iran is located between the orbits of 25 to 40 degrees north latitude and is located in an area that is among the highest in the world in terms of receiving solar energy. The amount of solar radiation in Iran is estimated between 1800 and 2200 kilowatt hours per square meter per year, which is higher ...

Number of pages: 54 Category: Food and Packaging Industries

Dissertation for receiving a master's degree in food technology, Persian abstract, background and purpose: Olive tree leaves have many compounds, including oleuropein, which are related to the majority of their medicinal properties. Olive leaf extract is also rich in phenolic compounds. In order to extract phenolic compounds, olive leaves must first be dried. Natural drying and ...

Number of pages: 153 Category: Biology - Environment

Master's Thesis in Energy Systems Abstract In recent years, the possibility of using solar energy for cooling and dehumidification has occupied the human mind. Solar absorption cooling systems (Solar Absorption Cycles) have advantages such as not being environmentally dangerous and low energy consumption, especially during electrical peak hours. In addition, since the cost of ...

Number of pages: 87 Category: Civil Engineering

Dissertation of master's degree in civil engineering, structural orientation, October 1390, first chapter of generalities. 1-1 Introduction In recent years, there have been many advances in the field

Number of pages: 214 Category: Architectural Engineering

Dissertation for receiving a master's degree in the field of architecture, Mehr 2013 Abstract: One of our needs today is to have a space to get acquainted with new architectural technologies in the world

Number of pages: 118 Category: Architectural Engineering

Dissertation for Master's Degree, Field: Architecture, Orientation: Architectural Technology, Spring 2014 Abstract With the formation of cities and the development of cities and communities, the needs and demands of people in the city

Number of pages: 163 Category: Architectural Engineering

Abstract Considering the sensitivity of the geographical location and the potentials in the Azad Qeshm Special Zone and the idea of ??improving the level of social interactions with other regions of the country and attracting domestic and foreign investors and improving the economic relations of the organization

Number of pages: 124 Category: Agricultural Engineering

Abstract Today, rice is the main food of more than half of the world's population and rice is cultivated in five continents and more than forty countries. Rice is one of the main meals of the people of Iran, until 1340, Iran exported more or less rice annually, and since then, as a result of the improvement of the economic situation of the people and the rapid increase of the ...

Number of pages: 124 Category: Geography - Urban Planning

Thesis for obtaining a master's degree in the field: Geography, specialization: Climatology in environmental planning. Abstract Different climatic parameters such as temperature, humidity and rainfall in a place are factors that influence the climate of that region and knowing them determines the climate of that region. Climate change is one of the most important climate issues ...

Number of pages: 196 Category: Architectural Engineering

Dissertation for receiving a master's degree (M.A) in the field of architecture – Architectural engineering trend spring 2014 Urban safety area, fire training centers are one of the most effective places in the three training departments

Number of pages: 103 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.A) in the field of Natural Geography, Climate Hazards Abstract Dust storms are destructive weather phenomena that cause irreparable damage to urban areas, fields, facilities, roads, etc. every year. This phenomenon is affected by special weather conditions, and if the mechanism of its development and expansion is known, it is possible to ...

Number of pages: 184 Category: Geography - Urban Planning

Dissertation for receiving a master's degree in the field: Political Geography (M.A) Abstract: The science of political geography is one of the broad topics of science and is created from a politically organized unit in a specific geographical territory that includes the government's rule and a specific space. These organized units can include the primary political core, limited ...

Number of pages: 173 Category: Geography - Urban Planning

Master's thesis in the field of natural geography, climatology and environmental planning, abstract human civilization is based on the stability of climatic conditions, therefore climate change can be considered a threat to human civilization. In recent years, climate scientists have tried to trace these changes for some climatic elements, the most important of which is ...

Number of pages: 174 Category: Geography - Urban Planning

Master's Thesis, Geography, Geomorphology, Abstract: The wide plain of Khuzestan hosts important permanent rivers, the largest of which is the Karun River. The Karun watershed is one of the largest sub-basins of Iran and a part of the main watershed of the Persian Gulf and the Oman Sea. The Karun River, with a length of about 890 kilometers, consists of four main branches, named ...

Number of pages: 187 Category: Geography - Urban Planning

Dissertation for Master's degree (M.A) major: urban planning, abstract of the increasing development of the country's urban population and the lack of prediction of sufficient and suitable land for the development of cities, the need to locate land for urban development, either by evaluating the possibilities of physical growth and development of existing cities along with ...

Number of pages: 92 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering Kidney stones are one of the most common diseases in the world, most of its crystals consist of calcium oxalate crystals. Therefore, it has been a long time that the investigation of effective substances in controlling this disease through the control of calcium oxalate crystals has been considered. The purpose of this ...

Number of pages: 217 Category: Art - Graphics

Master's thesis in traditional design and painting. Abstract The purpose of this research is to know the elements of light and color in contemporary Iranian painting and the pathology of the elements of painting in the reflection and influence of Western art, especially in the use of the element of light and color. In this context, the works of five prominent painters: Hossein ...

Number of pages: 284 Category: Art - Graphics

Master's thesis in dramatic literature. The abstract of this research deals with the formation of Iran's modern theater field through Bourdieu's sociological lens. It also examines the criteria of legitimacy and acceptability of this new field of establishment. The social atmosphere of Iranian society has fixed and traditional institutions before constitutionalism and modernity. ...

Number of pages: 90 Category: Geography - Urban Planning

Dissertation for master's degree in natural geography majoring in climatology in environmental planning Abstract One of the diseases of this century that unfortunately young people especially girls and young women are suffering from is the disease (MS), the cause of which is still unknown according to the expert doctors of the world and unfortunately they state various theories ...

Number of pages: 66 Category: Textile Industries

To receive a master's degree in textile technology engineering. Abstract In the previous research, multi-sized nano-roughness was developed using nanoparticles with different sizes and different surface charges along with silicone resin coating to produce multi-purpose textiles with stable properties. In this research, the idea of ??using laser irradiation and finishing textiles ...

Number of pages: 122 Category: Literature - Persian Language

Dissertation for Master's degree (M.A) in the field of Dramatic Literature. Dissertation abstract (including summary, objectives, implementation methods and results obtained): Solar eighties, in terms of political and social conditions, is one of the turbulent decades of Iran's contemporary history. In this decade, the reformist government that believed in granting more freedoms ...

Number of pages: 88 Category: Electronic Engineering

The master's thesis in the field of power. Abstract Control of scattered productions and their planning is one of the important issues of power systems operation. The purpose of this issue is to minimize the cost of operation and pollution and to supply cargo by observing the operation restrictions. The increase in the desire to use renewable resources and the move towards the ...

Number of pages: 66 Category: Electrical Engineering

Dissertation for master's degree in the field: Power Electrical Engineering Abstract Due to the extent and complexity of distribution networks, the probability of an accident occurring in them is very high, and the occurrence of an accident can affect many subscribers. Therefore, reliability is one of the key parameters determining the success rate of the system in providing ...

Number of pages: 118 Category: Electronic Engineering

Dissertation for Master's degree (M.Sc) Abstract: A sensor network consists of a large number of sensor nodes that are widely distributed in an environment and collect information from the environment. Since the nodes are powered by batteries, an important issue that is considered in sensor networks is the issue of energy consumption. One of the methods that are very common in ...

Number of pages: 88 Category: Physical Education - Sports

Dissertation for Master's Degree in Physical Education, Physiology, Abstract Central stability is the ability to control the position and movement of the trunk on the pelvis, which allows the control and transfer of force and movement to the extremities during sports activities, which muscle contraction can increase this stability. Improving central stability can be effective in ...

Number of pages: 187 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Soil and Foundation Mechanics Abstract: Fine-grained clay soils have always caused problems in construction projects, one of the ways to improve the properties of problematic clay soils is to use lime to stabilize the soil. It swells. this

Number of pages: 114 Category: Electrical Engineering

Dissertation for receiving a master's degree in the field of: Power Electricity, the increase in the presence of non-linear power electronic loads in distribution networks, on the one hand, and the ongoing changes in distribution networks, such as the presence of scattered production sources and the possibility of forming power microgrids [1], have increased the need for new ...

Number of pages: 90 Category: Management

Master's Thesis Field: MBA Abstract About two-thirds of the world's energy is consumed in cities. Along with the many solutions that have been provided to reduce the energy demand, some technologies and researches have also been aimed at optimizing the energy supply. The technology of simultaneous production of electricity and heat is among the technologies that have been ...

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: 87 Category: Civil Engineering

Master's thesis in the field of civil engineering, structure orientation Alkaline Aggregate Reaction [1] (AAR), is a chemical reaction that occurs in some concrete structures. (AAR) is a reaction between alkaline fluids in the pores and silica aggregates. Concrete failure, including expansion and cracking due to the alkaline reaction of aggregates, is of particular importance. ...

Number of pages: 150 Category: Electronic Engineering

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. ...

Number of pages: 86 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering, abstract of simulation and optimization of biological reactor producing butanol, semi-continuous fermentation is an efficient and beneficial method to produce valuable metabolic products such as biofuels. Mathematical modeling of semi-continuous bioreactors is a very difficult and complex issue due to the transitory and ...

Number of pages: 87 Category: Physical Education - Sports

Dissertation for Master's Degree in Physical Education, Physiology, Abstract Central stability is the ability to control the position and movement of the trunk on the pelvis, which allows the control and transfer of force and movement to the extremities during sports activities, which muscle contraction can increase this stability. Improving central stability can be effective in ...

Number of pages: 117 Category: Electronic Engineering

Presented to graduate education management as part of the academic activities required to obtain a master's degree in the field of mechatronics. Abstract As you know, air conditioner is a high consumption device and has a Freon refrigeration cycle. What drew the companies to the production of inverters was to solve the shortcoming of air conditioners in high energy consumption. ...

Number of pages: 100 Category: Electronic Engineering

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 ...

Number of pages: 88 Category: Electronic Engineering

Master's Dissertation in Electrical Engineering (M.Sc.) Focus: Power Abstract Reliability in any system is a concept that refers to the safe and reliable operation of the system. Although this concept is undefined in most systems such as electrical, mechanical, pneumatic, etc., it is of interest to designers and consumers, but with the advancement of technology and the increase ...

Number of pages: 91 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering, abstract of the laboratory study of iron oxide production on a microstructural scale using the precipitation method with supercritical anti-solvent by: One of the problems of cement used in oil wells, which are used to connect wall pipes and well walls, is that these cements do not have the desired resistance against high ...

Number of pages: 121 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical nanoengineering Abstract The synthesis of silicon dioxide nanoparticles from silicon oil waste using the synthesis method of silicon dioxide nanoparticles [1] has many industrial applications. The industrial use of these particles in traditional fields as well as new fields is expanding, for which new applications are continuously found. ...

Number of pages: 89 Category: Literature - Persian Language

Thesis for obtaining the M.A. master's degree. Field: Persian Language and Literature Abstract: The structural and semantic transformations of words and language combinations are very important in the field of language history research because it helps us to identify the authenticity and antiquity of our border language. Over time, these compounds gradually lost their original ...

Number of pages: 56 Category: Chemical - Petrochemical Engineering

Doctoral Dissertation Proposal Abstract Gaseous pollutants, including volatile organic compounds and aromatic substances, are very harmful and dangerous for the environment and human health. There are many methods such as physical methods, chemical methods and biological methods to remove gaseous pollutants. In the meantime, biological methods are more widely used due to their ...

Number of pages: 128 Category: Electrical Engineering

Master's thesis in the field of electrical engineering (power trend) Abstract of the investigation of transient electromagnetic states in wind turbines with the increasing development of wind turbines, increasing its efficiency has become more critical. One of the factors for measuring wind turbine efficiency is its performance in transient state problems. The phenomena that ...

Number of pages: 107 Category: Chemical - Petrochemical Engineering

Dissertation for obtaining a master's degree in the field of chemical nanoengineering Abstract In the uranium enrichment unit by centrifuge, UF6 gas after passing through the centrifuge and performing the enrichment process, enters the cold trap and is solidified and collected at a low temperature. One of the absorbents used to absorb uranium hexafluoride is sodium fluoride. The ...

Number of pages: 92 Category: Electrical Engineering

Master's Dissertation in Electrical Engineering (M.Sc.) Focus: Power Abstract Reliability in any system is a concept that refers to the safe and reliable operation of the system. Although this concept is undefined in most systems such as electrical, mechanical, pneumatic, etc., it is of interest to designers and consumers, but with the advancement of technology and the increase ...

Number of pages: 162 Category: Biology - Environment

Master's Thesis in the field of power, power electronics, power electronics, abstract. Distributed generation power plants have a production capacity of several kilowatts to 10 megawatts, which are used to produce electric energy in places close to consumers. Among their types, we can mention solar cells, fuel cells, micro turbines, wind power plants, etc. If these power plants ...

Number of pages: 126 Category: Chemical - Petrochemical Engineering

Thesis for master's degree in the field: chemical engineering Abstract Hard polyurethane[1] is always considered one of the most effective and practical polymers in various industries, especially the coating industry. Excellent adhesive property, curing ability at ambient temperature and corrosion resistance of this polymer are some of its remarkable features. This study was ...

Number of pages: 28 Category: Biology - Environment

Dissertation for Master's Degree in Power Electricity Chapter 1 Overview of Wind Energy and Wind Turbine Preface Energy supply and demand in the world has become one of the most important issues of the day, so that the world will be seriously affected by it until the end of the 20th century and even after that. Fossil energies such as oil, gas and coal are facing a new big ...

Number of pages: 107 Category: Electrical Engineering

Master's Thesis in Electrical Engineering, Power 1-1 Introduction Energy supply sources in the last few decades have been from fossil sources, which until recently have been obtained almost cheaply. Cheap energy sources caused that the optimal use of energy and energy recycling were practically not paid much attention. Due to the energy shortage crisis and the sense of danger ...

Number of pages: 76 Category: Chemical - Petrochemical Engineering

Dissertation for M.A. degree. ""Trend of Biotechnology"" Abstract Today, due to the reduction of fossil fuel sources and the destructive effects of these types of fuels on the environment, researchers are thinking of replacing them. In recent years, biodiesel fuel is considered the most suitable alternative to diesel fuel due to its renewable nature and less pollution. The ...

Number of pages: 91 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering without major. Abstract: Modeling, simulation and optimization of Jam Petrochemical Check Bed Reactor for hydrogenation of 1 and 3-butadiene. Therefore, a suitable kinetic model has been selected as a basic structure for modeling the reactor, and after that the presented model has been developed in order to match the molar ...

Number of pages: 87 Category: Electrical Engineering

The master's thesis in the field of power. Abstract Control of scattered productions and their planning is one of the important issues of power systems operation. The purpose of this issue is to minimize the cost of operation and pollution and to supply cargo by observing the operation restrictions. The increase in the desire to use renewable resources and the move towards the ...

Number of pages: 86 Category: Chemical - Petrochemical Engineering

Master's Thesis in Chemical Engineering Abstract: The purpose of this thesis is mathematical modeling of rotary dryer for drying dicalcium phosphate. In this project, with different temperature conditions and different number of cycles of the dryer, the moisture level of the product exiting the dryer has been checked. As a result, 100 data have been obtained from the output of ...

Number of pages: 85 Category: Biology - Environment

Master's Thesis of Chemical Engineering-Biotechnology Abstract The deteriorating energy sources of fossil fuels will make the developing human society suffer from fuel shortage in the not too distant future. As a result, the concerns of the continuous and increasing release of carbon dioxide into the atmosphere, as well as the extent of pollution caused by fossil fuels that have ...

Number of pages: 87 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering, abstract of the effect of additives on crystal morphology in the crystallization process of calcium oxalate. Kidney stones are one of the most common diseases in the world, and most of its crystals are composed of calcium oxalate crystals. Therefore, it has been a long time that the investigation of effective substances in ...

Number of pages: 120 Category: Electrical Engineering

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 ...

Number of pages: 121 Category: Electronic Engineering

Master of Mechatronics Abstract As you know, the air conditioner is a high consumption device and has a Freon refrigeration cycle. What drew the companies to the production of inverters was to solve the shortcoming of air conditioners in high energy consumption. To improve energy consumption in every part of the industry, one should pay attention to several parameters, it is ...

Number of pages: 52 Category: Biology - Environment

Dissertation for master's degree in the field: Power Electrical Engineering Abstract Due to the extent and complexity of distribution networks, the probability of an accident occurring in them is very high, and the occurrence of an accident can affect many subscribers. Therefore, reliability is one of the key parameters determining the success rate of the system in providing ...

Number of pages: 91 Category: Electronic Engineering

Dissertation for Master's degree (M.Sc) Major: Electronics Abstract: A sensor network consists of a large number of sensor nodes that are widely distributed in an environment and collect information from the environment. Since the nodes are powered by batteries, an important issue that is considered in sensor networks is energy consumption. One of the methods that are very ...

Number of pages: 126 Category: Biology - Environment

Dissertation for Master's Degree in Chemical Engineering Abstract: Microbial fuel cell biotechnology is a new science, in which microorganisms, as cheap catalysts, convert the chemical energy contained in organic and inorganic compounds into electrical energy. Optimizing parameters affecting battery performance is one of the first laboratory steps towards the development of this ...

Number of pages: 179 Category: Chemical - Petrochemical Engineering

Dissertation for master's degree in chemistry and technology of essential oil Persian summary Yarrow genus in Iran has 19 species of perennial and often aromatic herbaceous plants, six of which are exclusive to Iran. Achillea filipendula with the Persian name of Zagros yarrow is one of the native species of this genus in Iran. Different parts of yarrow species are widely used in ...

Number of pages: 82 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Chemical Engineering Abstract According to reports, heterogeneous photocatalysts are suitable for photodegradation of polluting compounds. Many semiconducting metal oxides such as: TiO2, SnO2, ZnO2, etc. can be used as photocatalysts in water splitting reactions, synthesis of organic compounds and removal of wastewater pollution. synthesized ...

Number of pages: 86 Category: Electrical Engineering

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 ...

Number of pages: 94 Category: Electrical Engineering

Dissertation for receiving a master's degree in the field of: Power Electricity Abstract The increase in the presence of non-linear power electronic loads in distribution networks on the one hand and the ongoing changes in distribution networks such as the presence of scattered production sources and the possibility of forming power micro-grids[1] have increased the need for new ...

Number of pages: 76 Category: Biology - Environment

Master's Thesis of Electrical Engineering - Power Abstract Microgrids are networks with small scales at the low voltage level, which are used to supply thermal and electrical loads to small places and places that do not have access to the main power grid. Microgrids are used to supply energy to all types of consumers such as household, industrial and agricultural, and their cost ...

Number of pages: 167 Category: Biology - Environment

Dissertation for Master's Degree in Mechanical Engineering Abstract: Nowadays, due to the increase in population in big cities, building high-rise buildings and residential towers may seem inevitable. But in locating these types of buildings and placing them together, a series of environmental requirements must be observed. In this thesis, an attempt has been made to re-evaluate ...

Number of pages: 103 Category: Electronic Engineering

Dissertation for Master's Degree Abstract Today, preventing losses caused by blackouts and undistributed energy is very important. Therefore, one of the most important issues in the operation of the distribution network is the renewal of the load, which has a great impact on the constant service to the subscribers. When a part of the network is cut off due to an error or ...