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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: 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: 79 Category: Biology - Environment

Electrical Engineering Master's Thesis - Power Abstract Wind is a suitable and powerful source of energy. Power generation in a variable speed wind turbine is an interesting topic. Because in wind energy converter systems, maximum utilization can be achieved at any speed. But this system needs its parameters to calculate the optimal speed of the turbine. In this thesis, a ...

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: 120 Category: Facilities - Mechanics

Dissertation for M.Sc Mechanical Engineering - Energy Conversion Trend Abstract In the last century, with the increasing demand for energy and the reduction of fossil fuel resources, the role of renewable energy in the progress and development of countries is not hidden from anyone. In the meantime, wind energy has a special share and has the highest growth rate among other ...

Number of pages: 86 Category: Biology - Environment

Dissertation for the Master's degree ""M.Sc"" in Mechanical Engineering - Energy Conversion. Abstract In this thesis, experimental analysis along with numerical simulation has been carried out to investigate the performance of Savunius vertical axis wind turbine. In order to carry out the tests, the turbine was tested in the subsonic wind tunnel. In order to check the accuracy ...

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: 125 Category: Electronic Engineering

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 ...

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: 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: 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: 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: 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: 175 Category: Facilities - Mechanics

Mechanical Engineering Master's Thesis - Energy Conversion Abstract Coating with thin layers plays a very important role in semiconductor industries and microelectromechanical and nanoelectromechanical equipment. By adding a thin layer to the surface due to interference of electromagnetic waves, the radiation properties of the surface will be completely different. In this ...

Number of pages: 81 Category: Facilities - Mechanics

Mechanical Engineering Master's Thesis - Energy Conversion One of the ways to reduce energy consumption for underwater devices is to reduce the drag on these devices. The nose of underwater objects is one of the most important parts of these objects in dealing with currents. By optimizing this part, the drag can be reduced by controlling the boundary layer of the fluid, by ...

Number of pages: 152 Category: Facilities - Mechanics

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. ...

Number of pages: 108 Category: Facilities - Mechanics

Master's Thesis in the field of Mechanical Engineering - Energy Conversion Abstract Numerical investigation of fluid flow and heat transfer on mesh plates with cross holes under discontinuous suction Introduction 1-1- Fluid flow on mesh plates The urgent need of modern humans to use different fuels and the problem of environmental pollution caused by improper and indiscriminate ...

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: 85 Category: Computer Engineering

Master's Thesis in Computer Engineering Abstract: In recent years, due to the growing number of requests and the joining of new customers to the world of computing, computer systems Computing should also change and be more powerful and flexible than before. In the meantime, cloud computing was presented as a model beyond a system that currently has the ability to respond to most ...

Number of pages: 112 Category: Electrical Engineering

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.

Number of pages: 138 Category: Electronic Engineering

Master's thesis in the field of electrical engineering - power abstract of the possible analysis of dynamic stability of microgrids, considering wind turbines, in recent years, the high penetration of renewable energy sources, especially wind energy, in power networks has created new problems. One of the most important issues is the uncertainty in the power produced by wind ...

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: 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: 135 Category: Biology - Environment

Master's thesis in the field of electrical engineering - power abstract of the possible analysis of dynamic stability of microgrids, considering wind turbines, in recent years, the high penetration of renewable energy sources, especially wind energy, in power networks has created new problems. One of the most important issues is the uncertainty in the power produced by wind ...

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: 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: 103 Category: Biology - Environment

Dissertation for Master's Degree in Electrical Engineering, Power Systems, Abstract: In this thesis project, a new analytical approach is proposed for planning electric energy production and determining the amount and location of storage of rotating storage corresponding to the risk level of subscriber load points through profit/cost analysis in the optimization program for the ...

Number of pages: 88 Category: Electrical Engineering

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.

Number of pages: 102 Category: Electronic Engineering

Dissertation for master's degree in electricity, power orientation Abstract: In the past, the structure of energy production and consumption systems, such as electricity and natural gas, were independent of each other. But due to the ever-increasing growth of energy consumption and the development of control systems and the need for coordination between energy production and ...

Number of pages: 109 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering-Energy Conversion Abstract The goals of this project include providing a solution for calculating the calorific value of waste based on the knowledge of the composition of waste and also proposing a combined cycle of waste incinerator power generation using the cold energy recovery of liquefied natural gas along with the ...

Number of pages: 62 Category: Biology - Environment

Abstract In this research, the effect of different degrees of burial in windy sand on some physiological and vegetative characteristics of Qara Dagh and Rames species was measured. One-year-old saplings of Qarhadagh and Rames species were obtained from the nursery of the General Department of Natural Resources of Yazd province and subjected to five control treatments, burial ...

Number of pages: 73 Category: Electronic Engineering

Dissertation for receiving a master's degree in the field of electricity - the tendency of electric machines. Abstract In this thesis, the behavior of the wind power plant is investigated using the detailed model of induction generator with two-way feeding. Electronic converters of the power plant and its control systems and the behavior of the power plant include electrical and ...

Number of pages: 107 Category: Facilities - Mechanics

Dissertation for M.Sc Master's Degree, Mechanical Engineering - Applied Design Abstract Modern wind turbines today tend to vibrate a lot due to their elastic, long and narrow structure. Therefore, all components of wind turbines should be subjected to vibration and modal analysis in the design stages, and their natural frequencies should be reviewed with turbine excitation ...

Number of pages: 82 Category: Electrical Engineering

Master's Thesis in Electrical Engineering (M. Sc.) Power Orientation Abstract - Nowadays, due to environmental and economic reasons, the trend of using renewable energies, especially wind turbines, to produce electricity has increased in different countries of the world. On the other hand, the production power of wind turbines depends on the wind speed, and due to the ...

Number of pages: 131 Category: Electronic Engineering

Master Thesis (M.Ss) Abstract The desire to use distributed generation (DG) resources is increasing day by day due to their numerous advantages. The disproportion between the consumption load and the production power will cause the power systems to be operated close to the corresponding nominal capacity, which will seriously aggravate this issue by using FACTS control tools with ...

Number of pages: 89 Category: Biology - Environment

Master's Thesis in Mechanical Engineering, Energy Conversion, Abstract Due to the lack of fresh water resources, it is of great importance to discover new ways of water production. One of the new methods of producing fresh water in low capacity is the use of air humidity, which is known as condensation water production system. In this method, the flow of hot and humid air is ...

Number of pages: 94 Category: Facilities - Mechanics

Dissertation for M.Sc. Mechanical engineering trend - applied design In this research, a wind turbine with a vertical axis of the Savonius model is modeled. The wind turbine has been modeled in the fluid control volume, which is the same as the wind tunnel in real conditions, and has been investigated under wind blowing with different speeds. Also, in terms of overlap ratio, it ...

Number of pages: 112 Category: Facilities - Mechanics

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 ...

Number of pages: 179 Category: Electrical Engineering

Dissertation for obtaining a master's degree in the field of electrical engineering, power orientation Abstract Wind energy will be one of the important sources of electricity in future systems. In this work, an overview of wind energy power electronic control is provided and the development of modern power electronic components is also briefly reviewed. The application of power ...

Number of pages: 133 Category: Civil Engineering

Dissertation for receiving a master's degree in the field of structural oriented civil engineering, 2013, although the construction and design methods of structures have expanded over the years, but still the effect of earthquakes is one of the most important.

Number of pages: 120 Category: Civil Engineering

Master's Thesis in Civil Engineering - Earthquake Engineering 1391 Abstract Structures with frames with coaxial braces are among earthquake resistant systems. These structures are widely

Number of pages: 154 Category: Civil Engineering

Dissertation for obtaining a master's degree in civil engineering – Spring 2014 structure trend, first chapter, general research 1-1- Introduction: Mostly structures for severe earthquakes and surface acceptance

Number of pages: 231 Category: Architectural Engineering

Thesis­ academic certificate for obtaining the master's degree Major: Architecture, architectural trend, February 2013 Abstract of the influential role of therapeutic spaces and the environment in general, in the behavior and mood of Mes children

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: 108 Category: Civil Engineering

Dissertation of master's degree in structural engineering February 2019 Chapter 1: Introduction 1-1. General, one of the most important natural events that always affects the lives of human beings

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: 185 Category: Industrial Engineering

Dissertation for receiving a master's degree in the field of industrial engineering, Shahrivar's industrial trend. 2013 Abstract: Many economists consider agriculture as the driving force of economic growth.

Number of pages: 154 Category: Geography - Urban Planning

The first chapter of the general research 1-1- Introduction The increasing development of natural resources and environmental science in the world has led to the creation of new branches of related sciences and industries, each of which in turn has the ability to influence the natural environment. The knowledge of ecotourism or nature tourism is considered as one of the most ...

Number of pages: 92 Category: Geography - Urban Planning

Abstract: All crops are different from each other in terms of biological characteristics and environmental needs, while the natural and environmental characteristics of the land also have drastic changes from one region to another. Many factors affect the growth and development of plants. Some of these factors include: the amount of energy received from the sun, the temperature ...

Number of pages: 184 Category: Geography - Urban Planning

Abstract The formation of educational and cultural settlements in terms of shape, how to settle and the type of materials and many other parameters are related to climatic elements. Architecture compatible with climatic conditions, in addition to providing a comfortable atmosphere, prevents energy waste and will bring favorable economic effects on a micro and macro scale. The ...

Number of pages: 149 Category: Geography - Urban Planning

In order to receive a master's degree in geography and climatology in environmental planning, in order to identify the synoptic patterns leading to torrential rain, first, daily rainfall equal to 20 mm and more during the statistical period of 1991 to 2010 was determined as the basis for analyzing the torrent for the synoptic stations of Astara, Anzali, Rasht and Ramsar with the ...

Number of pages: 142 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.Sc) Field: Natural Geography - Applied Climatology Abstract Due to its location in a special geographical location, topographic conditions and climatic systems affecting the region, the city of Kavus has a relatively cold climate. So that the air temperature in the coldest month of the year reaches 9.2 degrees Celsius and has the highest ...

Number of pages: 200 Category: Geography - Urban Planning

Chapter 1 1-1-Introduction Climate[1] is a complex system[2] that is changing mainly due to the increase of greenhouse gases. During the 20th century, especially in the last two decades, the climate of the earth lost its balance and showed a tendency to increase the temperature (Rahimiu et al., 2012). According to many experts, climate change is a natural phenomenon[3] that has ...

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: 129 Category: Geography - Urban Planning

Academic thesis for obtaining a master's degree in the field: Natural Geography, specialization: Geomorphology in environmental planning. Abstract: Basically, the settlement and creation of an area depends on environmental conditions and geographical location more than anything, because natural complications and phenomena have a decisive effect on location, dispersion, influence ...

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: 138 Category: Electronic Engineering

Dissertation for Master's Degree in Electrical Engineering, Power Systems, Abstract: In this thesis project, a new analytical approach is proposed for planning electric energy production and determining the amount and storage location of rotating storage corresponding to the risk level of subscriber load points through profit/cost analysis in the optimization program of shared ...

Number of pages: 105 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 124 Category: Physical Education - Sports

Faculty of Physical Education and Sports Sciences Thesis for Master's degree Abstract: Background and purpose: The purpose of this study is to determine the effect of 8 weeks of intense training with and without water extract (red and black valelic) on plasma and liver neuropeptide w levels, cortisol and plasma T4 hormones in male rats. Materials and methods: In this ...

Number of pages: 151 Category: Electronic Engineering

Dissertation for Master's Degree in Electrical Engineering, Power Systems, Abstract: During the last two decades, the electricity industry has undergone fundamental changes in the way it is produced, transmitted and distributed, which is referred to as restructuring. With the restructuring in the electricity industry, reactive power has been introduced as one of the most ...

Number of pages: 119 Category: Electrical Engineering

Master's Thesis in Electrical Engineering. M.Sc. Major: Power. Abstract: In recent years, two major developments have occurred in power systems. One of these changes is related to the restructuring of the electricity industry and the transformation of the traditional centralized environment into a decentralized one. Another development is in the field of expanding the use of ...

Number of pages: 90 Category: Computer Engineering

Dissertation for Master's Degree in Computer Engineering, Software Orientation Abstract: With the advancement of hardware, then operating systems, followed by software, the demand for more services and higher speed and power has also increased, and this situation has reached a point where users cannot run their desired software without suitable hardware. By producing 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: 100 Category: Electronic Engineering

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 ...

Number of pages: 80 Category: Cartography - Drawing

Master's Thesis of Mapping Engineering Field of Remote Sensing Abstract Updating land databases in urban environment is a difficult and costly task. Satellite remote sensing techniques have been widely used in the extraction and control of land cover change at different scales, which have led to useful results. Doing this becomes easier with the help of automatic change ...

Number of pages: 98 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Marine Structures, Abstract: Tension-based platforms are among economic marine platforms for use in deep waters. The correct prediction of the platform's dynamic response to environmental loads is very important in its economic and safe design. In this research, the dynamic behavior of the tension base platform under the ...

Number of pages: 231 Category: Civil Engineering

Dissertation to receive M.Sc degree in civil engineering, structural orientation. Abstract: One of the ways to strengthen the building against lateral loads is the use of a wind system (convergent or divergent). The increasing use of steel braces to deal with earthquake forces requires that the seismic performance of these types of systems be given more attention. The common ...

Number of pages: 159 Category: Civil Engineering

Dissertation to receive the master's degree in civil engineering ""M. Sc"" Major: Water. Abstract The aim of this thesis is to investigate the trend of annual rainfall changes in 37 selected stations in the whole of Iran using non-parametric method. The two Mann-Kendall tests and the age estimator, which are among the most common non-parametric methods, were used for the trend ...

Number of pages: 141 Category: Civil Engineering

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 ...

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: 110 Category: Electronic Engineering

Master's thesis in the field of electricity-power orientation Abstract Gearboxes are essential and inseparable components of power transmission systems. These machines convert torque into speed and sometimes speed into torque. The use of mechanical gearboxes in these systems has been common since long ago as an interface between the power generation sector and the power ...

Number of pages: 134 Category: Electronic Engineering

Master's Thesis of Electrical Engineering - Restructuring Abstract The trustees of distribution systems, as the last link in the chain of electricity supply to subscribers, face problems in their long-term decisions. Paying attention to electricity markets and rates affected by the performance of electricity market players challenges distribution companies, which are responsible ...

Number of pages: 109 Category: Civil Engineering

Master's thesis in the field of civil engineering, structure, first chapter: introduction 1-1. General One of the most important natural events that has always changed people's lives and sometimes destroyed human civilizations by destroying buildings is earthquake. Therefore, humans have always tried to identify and deal with the dangers caused by earthquakes and still have not ...

Number of pages: 105 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Hydraulic Structures, Abstract: It is obvious that water resources are essential for the life of living organisms and especially for human life. Drainers are a set of structures that are used to transfer water from the dam lake to the discharge point downstream. Therefore, due to the importance of this part of the dam, the ...

Number of pages: 165 Category: Civil Engineering

Dissertation for receiving a master's degree (Sc..M) field: civil engineering, specialization: structure, abstract: In recent years, the subject of seismic isolation has been particularly focused on the seismic design of buildings. The main purpose of this work is to isolate the structure from the ground instead of using conventional retrofitting methods The equipment used in ...

Number of pages: 102 Category: Electronic Engineering

Master's Dissertation in Power Electricity Abstract: In electrical networks, costs caused by system losses and defects caused by voltage deviations from permissible limits are among the biggest problems that plague power generation, transmission and distribution. Therefore, reducing the costs of planning and operating power systems, and at the same time, observing its limits and ...

Number of pages: 99 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemistry, chemical physics, abstract In this project, platinum/carbon nanocatalyst was first synthesized by chemical reduction of platinum salt with sodium borohydride chemical reducer. The structural and morphological characteristics of the synthesized nanocatalyst were investigated using energy dispersive spectroscopy and scanning electron ...

Number of pages: 70 Category: Biology - Environment

Dissertation for obtaining a master's degree in chemistry, fluoride has been known as a toxic ion for many years. The main source of fluoride in aqueous solutions is minerals containing fluoride and the industrial activities of factories. According to the report of the Environmental Protection Organization, the amount of fluoride more than 1 mg/liter causes various diseases. In ...

Number of pages: 125 Category: Physical Education - Sports

Physical Education and Sports Science Thesis for Master's Degree Abstract: Background and Objective: The purpose of this study is to determine the effect of 8 weeks of intense training with and without water extract (red and black oleander) on plasma and liver neuropeptide w levels, cortisol and plasma T4 hormones in male rats. Materials and methods: In this experimental study, ...

Number of pages: 185 Category: Civil Engineering

Dissertation for receiving a master's degree in the field of civil engineering, structure orientation. Abstract: Today, many reinforced concrete structures that are in operation are more than 75 years old and have been damaged due to natural disasters such as earthquakes and wind, or due to material fatigue or corrosive factors. Maintenance of structures is very important due to ...