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Number of pages: 134 Category: Librarianship

Dissertation for receiving a master's degree, Major: Accounting, Abstract: Considering the importance of the liquidity of companies' shares in the capital market, the present research seeks to investigate the factors affecting liquidity. In this regard, the impact of dividend policies on the liquidity of companies' shares has been tested. In this research, multiple linear ...

Number of pages: 95 Category: Economics

Dissertation for Master's Degree (M.A.) Major: ""Production"" Abstract: The implementation method in this research, which is applied in terms of purpose and descriptive-analytical in nature, the research hypotheses were expressed in two formats, descriptive statistics and regression model, and spss was used for calculations. The main goal of this research is to investigate the ...

Number of pages: 111 Category: Management

Dissertation for Master's Degree in Financial Management Abstract: Along with the advancement of technology and due to the comprehensive connection of human life with communication technologies and especially the Internet, the banking system in all countries has undergone changes and transformations in the last century. All these efforts have been aimed at reducing the cost of ...

Number of pages: 118 Category: Management

Dissertation for Master's Degree in Business Administration, Financial Orientation. Abstract The main purpose of this research is to investigate the reaction of the stock market to the announcements of cash dividends in companies admitted to the Tehran Stock Exchange. The statistical population of this research includes all the companies admitted to the Tehran Stock Exchange ...

Number of pages: 137 Category: Chemical - Petrochemical Engineering

Dissertation for obtaining a master's degree M. Sc)) Department of Chemistry - Green Synthesis of Organic Chemistry 2-phenylimidazoles boiled using ionic liquid. Imidazoles are an important group of heterocyclic compounds that have various biological and medicinal activities such as anti-hypertensive, anti-cancer, anti-HIV, anti-bacterial and pain reliever. In this thesis, new ...

Number of pages: 91 Category: Facilities - Mechanics

Master's thesis in the field of mechanical engineering - energy conversion trend Abstract: In this research, the turbulent flow of a non-Newtonian nanofluid in a microchannel with a circular cross-section is simulated. First, the types of classification of microchannels, the methods of making microchannels, as well as the advantages and challenges of using microchannels are ...

Number of pages: 166 Category: Librarianship

Dissertation for receiving a master's degree, Major: Accounting, Abstract: Considering the importance of the liquidity of companies' shares in the capital market, the present research seeks to investigate the factors affecting liquidity. In this regard, the impact of dividend policies on the liquidity of companies' shares has been tested. In this research, multiple linear ...

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: 104 Category: Art - Graphics

Master's Thesis of Faculty of Art and Architecture, Department: Carpet (Painting), October 2013 Abstract: Today, in today's advanced and industrialized world, using new methods, it is trying to make Tul products

Number of pages: 141 Category: Librarianship

Accounting training group, academic thesis for obtaining a master's degree, abstract of the company's capital structure is the permanent financing of the company, which is shown by long-term debt and equity. Financing methods for the continuation of activity and the implementation of profitable projects are very effective in the growth process of the company and cause the ...

Number of pages: 66 Category: Economics

Master's thesis in the field of economic sciences for the academic year 2013-1394 The first chapter Generalities of the research Introduction Today in many countries, especially in the developing countries, besides the economy

Number of pages: 156 Category: Librarianship

Dissertation for Master's Degree in Accounting Abstract: The purpose of this research is to investigate the impact of stock market fluctuations on the performance of companies. The desired criteria for measuring the performance of companies are return on equity (ROE) ? return on assets (ROA) ? net profit and economic added value and the desired criterion for fluctuations ? ...

Number of pages: 134 Category: Librarianship

Thesis for obtaining a master's degree in the field: accounting, profit abstract is one of the items that investors pay attention to, and it is considered the basis of many important economic decisions. Interest has two components: cash and accrual, on the other hand, accrual items have two normal and abnormal parts. Some evidences show the fact that investors face many problems ...

Number of pages: 153 Category: Electronic Engineering

Dissertation for obtaining a master's degree in electrical engineering, electronics, abstract, accurate measurement and control of temperature in industrial and research systems is of particular importance, and the correct operation of some industrial and laboratory tools is possible only in a certain location with a small number of channels (maximum 8 channels). Therefore, the ...

Number of pages: 140 Category: Management

Dissertation for Master's Degree in Business Administration Examining the relationship between dividends and stock returns has long been one of the most difficult challenges faced by financial economists. This is done by measuring the cumulative abnormal return. Especially in this study, we investigate the influencing factors on the accumulated abnormal return in periods when ...

Number of pages: 101 Category: Management

Dissertation for M.A in Business-Financial Management Abstract: The main research problem in this research is whether there is a significant relationship between earnings per share, Tobin's Q ratio and financial leverage with the stock prices of companies listed on the Tehran Stock Exchange? In order to find an appropriate answer to the main research question, four hypotheses ...

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: 212 Category: Management

Dissertation for receiving a master's degree in the field of industrial management, financial orientation. Abstract: Since there are several factors that play a decisive role in the success of financial and service institutions, including banks, and attracting resources, deposits and customers is one of the main and most important issues that a banking system faces, therefore, ...

Number of pages: 65 Category: Art - Graphics

Dissertation for master's degree in visual communication. The abstract of the present research in four chapters examines the works of cinema posters of the last three decades of Iran - 1360 to 1390. During a period of library research, materials related to the formation and birth of cinema in the world were conducted for the first chapter, and in the second chapter, the same ...

Number of pages: 232 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering - Earthquake Engineering Abstract The city of Birjand, as the capital of South Khorasan province, is located in the structural zone of Sistan, which is particularly sensitive due to its proximity to seismic and fundamental faults (Neh Khawri and Westi faults in the south, Ardkol fault in the northeast, Nawaz fault in the ...

Number of pages: 109 Category: Civil Engineering

Dissertation for receiving a master's degree in the field of civil engineering with a focus on soil and foundation. Abstract: The compressibility behavior of soils has become an important concern in geotechnical engineering. As buildings, embankments and roads are implemented, significant settlements often occur. Since long-term settlements occur due to creep, therefore, the ...

Number of pages: 144 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering with Earthquake Orientation Abstract: Semi-rigid joints [1] are joints whose hardness is between the two states of grip and joint and transmit a part of the anchor, in other words, its degree of rigidity is between 20% and 90%. In this thesis

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: 126 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical engineering (gas engineering trend) in recent years, many horizontal wells have been drilled around the world. The main reason is the ability to increase the level of the tank in contact with the well, which increases the utilization of the well. Well testing is used to identify the models of hydrocarbon reservoirs and to identify their ...

Number of pages: 173 Category: Biology - Environment

Doctoral Dissertation in the field of Civil Engineering - Water and Environment Abstract Network methods are among the most widely used groundwater modeling tools that have been widely spread and accepted in the last two decades. On the other hand, the advancement of computing power of computers and the ease of access to them have led to the rapid development of numerical ...

Number of pages: 92 Category: Industrial Engineering

Master's Thesis (M.Sc.) Direction: Process Design Abstract Currently, membranes have found a special place in different separation industries and have wide applications in different fields of separation, including liquid solutions and different gases. Membrane technology is one of the most widely used technologies in today's industry, whose field of application is wide ranging ...

Number of pages: 94 Category: Chemical - Petrochemical Engineering

Thesis for obtaining a master's degree. Abstract: The increase in environmental concerns and the progress of green chemistry processes have necessitated the replacement of homogeneous catalysts with heterogeneous ones. In this research, activated carbon was used as a suitable substrate due to its special properties. The most important of these properties are resistance in acidic ...

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: 147 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 90 Category: Paramedical

Master's Thesis in Special Care Nursing Abstract: Introduction: Today, one of the most common invasive ways in medical care is the use of intravenous injections, and like any other method, it has many complications, the most common of which is phlebitis, and one of the treatment goals is to prevent it. Therefore, this study was conducted with the aim of determining the effect of ...

Number of pages: 166 Category: Chemical - Petrochemical Engineering

Doctoral Dissertation in Chemical Engineering Abstract With the increase in population, the need for energy resources for mankind has also increased. Diesel, as an effective fuel, fulfills the need for transportation fuel in the world. Biodiesel, which is considered a renewable fuel and produces less harmful environmental effects, is produced from various sources, among which ...

Number of pages: 107 Category: Chemical - Petrochemical Engineering

Master's Thesis in Chemical Engineering Abstract Simulation of dynamic surface tension phenomenon in solvent oil systems based on permeation process is one of the prominent processes in the field of increasing extraction from oil reservoirs, gas injection. Therefore, a correct understanding of the mechanisms and how these processes are carried out is a big step towards ...

Number of pages: 107 Category: Food and Packaging Industries

Dissertation for M.Sc. Degree: Food Industry Abstract: Pectinases are a group of hydrolytic enzymes that break down pectic substances. Exopolygalacturonase (exo-p) and endopolygalacturonase (endo-p) are two types of this group. In this study, two fungal species, namely Aspergillus niger and Vetrichodermarisi, which were able to produce pectinase, were isolated. The results of ...

Number of pages: 99 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemistry, Analytical Chemistry, Abstract In this project, a molecular template polymer was prepared for the selective extraction of furan. To prepare this polymer, methacrylic acid (functional monomer), ethylene glycol dimethacrylate (cross-linking agent), 2,2-azobisisobutyronitrile (initiator), a mixture of pyrrole (furan substitute or target ...

Number of pages: 121 Category: Chemical - Petrochemical Engineering

Dissertation for receiving a master's degree in chemical engineering, advanced orientation. Abstract The limitation of heat transfer fluids in various industries due to their poor thermal conductivity has caused the improvement of the heat transfer of working fluids to be considered as a new method of advanced heat transfer. So that the idea of ??dispersing solid particles in ...

Number of pages: 87 Category: Medical Sciences

Dissertation for Doctorate Degree in Dentistry Abstract The purpose of this study was to compare the microleakage of adhesive total etch and self etch using three methods of Fluid filtration, dye penetration and dye extraction, as well as to determine the statistical relationship between these three methods. Materials and methods In this laboratory study, 72 extracted human ...

Number of pages: 96 Category: Facilities - Mechanics

Dissertation for M.Sc Mechanical Engineering - Energy Conversion Orientation Abstract: In this research, the turbulent flow of a non-Newtonian nanofluid in a microchannel with a circular cross-section is simulated. First, the types of classification of microchannels, the methods of making microchannels, as well as the advantages and challenges of using microchannels are stated. ...

Number of pages: 155 Category: Electronic Engineering

Master's degree in electrical engineering, electronics, abstract, accurate measurement and control of temperature in industrial and research systems is of particular importance, and the correct operation of some industrial and laboratory tools is possible only in a specific location with a small number of channels (maximum 8 channels). Therefore, the decision was made to build a ...

Number of pages: 107 Category: Electronic Engineering

Dissertation for Master's Degree in Electrical-Electronic Engineering (M.Sc) Abstract Sulfur recovery process by Klaus method is one of the most common methods of separating elemental sulfur from acid gas resulting from the sweetening process in gas and oil refineries. But due to the complexity of this process and the multivariable nature of the reaction furnace and the lack of ...

Number of pages: 112 Category: Economics

Dissertation for receiving a master's degree, specialization: accounting. Abstract: Research conducted in other countries shows that investors have shown a favorable and positive reaction to the release of news related to bonus shares. In other words, the obtained results show that the rate of return on shares of companies that distributed bonus shares was higher than the rate ...

Number of pages: 144 Category: Facilities - Mechanics

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

Number of pages: 112 Category: Librarianship

Dissertation for receiving a master's degree, specialization: accounting. Abstract: Research conducted in other countries shows that investors have shown a favorable and positive reaction to the release of news related to bonus shares. In other words, the obtained results show that the rate of return on shares of companies that distributed bonus shares was higher than the rate ...

Number of pages: 154 Category: Biology - Environment

Doctoral Dissertation on Energy Conversion Abstract One of the most important issues in internal combustion engines is heat transfer in them; Because almost a third of the energy produced inside the combustion chamber is removed through engine cooling. The heat transfer of internal combustion engines is important from various aspects, including the protection of materials used ...

Number of pages: 82 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering, Applied Design, Abstract: Microbeams are used as the main element in most sensors and actuators. In some cases, such as micro switches, this member may also be used in an environment containing fluid. Therefore, in this article, we analyzed the dynamic behavior and frequency analysis of a micro beam that is located in a ...

Number of pages: 128 Category: Facilities - Mechanics

Abstract: Considering the reduction of underground water resources and fossil fuels in today's world and also in Iran, prevention of energy waste and introduction of new methods in the preparation of potable fresh water from sea water will have a special place in the future world. Using methods such as evaporation-distillation methods can be one of these methods. Due to the high ...

Number of pages: 91 Category: Facilities - Mechanics

Mechanical Engineering, Manufacturing and Production Department, Master's Thesis, Introduction High-speed rolling bearings have many applications in rotating machines, whose task is to separate the rotating parts from the fixed parts of the machine. Accuracy is very important in machine tool applications and bearing corrosion resistance in chemical machines. In aerospace ...

Number of pages: 91 Category: Facilities - Mechanics

Master's Thesis on Energy Conversion Abstract: Increasing heat transfer as well as increasing energy efficiency due to the limitation of natural resources and 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. One of the most important ways to ...

Number of pages: 96 Category: Facilities - Mechanics

Master's Thesis, Mechanical Engineering, Energy Conversion, Abstract In this thesis, using the CFD computational fluid dynamics technique, the effect of key parameters such as the effect of secondary inlet pressure on the ejector device, suction ratio, return currents caused by secondary inlet pressure and the effect of all these parameters on the hydrodynamic characteristics of ...

Number of pages: 121 Category: Facilities - Mechanics

Master's Thesis, Energy Conversion Engineering, Abstract: In many processes in the industry, the combination of liquid droplets with gas flow will lead to problems such as corrosion of downstream equipment and loss of expensive liquids. To solve these problems, the phases are separated from each other with the help of a separator. Cyclone separators, as a type of high efficiency ...

Number of pages: 88 Category: Facilities - Mechanics

Dissertation for M.Sc Master's Degree, Mechanical Engineering-Manufacturing and Production Abstract Nowadays, due to the need for parts with high strength and low weight, the method of manufacturing parts has become important. Hot gas forming [1] is a new process that, due to the elimination of side operations such as welding, the total weight of the parts is reduced, the ...

Number of pages: 68 Category: Facilities - Mechanics

Dissertation for M.Sc degree, specialization: manufacturing and production, abstract in this thesis, how to improve the properties of plastics with the help of heat treatment. First, we will talk briefly about polymers, plastics and their sub-branches and heat treatment on them, and then we will discuss the effect of annealing heat treatment on heavy polyethylene sheets that are ...

Number of pages: 123 Category: Civil Engineering

Dissertation for obtaining a master's degree in civil engineering, structural orientation, March 2013, abstract of the scope of using FRP materials for shear strengthening of reinforced concrete beams in

Number of pages: 120 Category: Librarianship

Master's thesis in accounting, the present research was done to provide evidence to clarify the relationship between the quality of profit and the liquidity of stocks, as well as to evaluate the impact of the quality of profit on the liquidity of stocks. In this research, 96 companies admitted to the Tehran Stock Exchange in the 5-year period of 1387-1392 (with one year in ...

Number of pages: 145 Category: Librarianship

Dissertation for Master's degree (M.Sc) Major: Accounting Abstract The main purpose of this research is to examine the relationship between stock liquidity and real profit management of companies listed on the Tehran Stock Exchange. The statistical population of the present research is the companies admitted to the Tehran Stock Exchange during the years 1382 to 1391, and the ...

Number of pages: 114 Category: Librarianship

Dissertation for receiving a master's degree major: Accounting Abstract: One of the topics that has been researched and discussed in the financial literature is the investigation of the relationship between the difference in the bid price of shares as a measure of the liquidity of shares and the capital structure. In this research, the difference in the bid price of shares as an ...

Number of pages: 258 Category: Librarianship

Dissertation for receiving a master's degree, specialization: accounting, abstract: according to the efficient market theory, one of the characteristics of an efficient and ideal market is the absence of transaction costs and, as a result, high liquidity. With the increase in liquidity, the cost of transactions will decrease significantly. Liquidity also plays an important role ...

Number of pages: 122 Category: Librarianship

Academic thesis for obtaining a master's degree in the field of accounting: In this chapter, the main problem of the research is explained first, and then the importance and necessity of the research topic is explained, because creating liquidity for securities is considered one of the most important functions of capital markets. In fact, liquidity is the most important ...

Number of pages: 101 Category: Psychiatry

Master's thesis in the field of psychology, orientation: general. This research was conducted with the aim of investigating the relationship between organizational justice and conflict resolution methods (interpersonal) with the job satisfaction of Hormozgan Cement Company employees. The research method of the present study was descriptive correlation. The statistical population ...

Number of pages: 87 Category: Librarianship

Dissertation for master's degree in accounting. The abstract of this research was to provide answers to some important questions regarding the new international liquidity standards. First, while the new liquidity risk ratios provide additional methodologies for coverage ratios and net cash assets, they provide components and assumptions that are generally untested. Secondly, ...

Number of pages: 159 Category: Librarianship

The thesis for receiving a master's degree (M.A) in the field of accounting, the abstract quality of profit from various aspects including (having predictive value, feedback value, neutrality, timeliness and honest expression) has been evaluated and considered by researchers. The purpose of this research is to examine the relationship between some corporate governance mechanisms ...

Number of pages: 121 Category: Management

Dissertation for Master's Degree in Executive Management Abstract: The review of information technology acceptance models shows that several competitive models have been presented, each of which has a different set of determining factors. In this research; User acceptance using the unified theory of acceptance and application of technology (UTAUT[1]) by Venkatesh et al. (2003), ...

Number of pages: 124 Category: Management

Dissertation for receiving a master's degree in business administration, specialization: Finance. Abstract: In this research, the relationship between profit transparency and liquidity risk in companies admitted to the Tehran Stock Exchange is investigated. In this research, we will check that increasing the transparency of companies' profits reduces liquidity risk. The ...

Number of pages: 125 Category: Electronic Engineering

Master's Thesis in Electrical Engineering (Communication System) Abstract: Optimizing Node Placement in Different Environments for Broadband Sensor Networks Locator Systems are systems that can detect the location of an object in a space. Such systems usually detect the distance between two objects by using radio communication and determine the location of the object in the area ...

Number of pages: 153 Category: Civil Engineering

Master's Thesis in Civil-Structural Engineering Abstract In order to estimate the capacity of buildings, it will be much easier and less expensive to use static methods instead of incremental dynamic methods. Although the incremental dynamic method gives more accurate and closer answers to the real behavior of the structure, its high cost and time has increased the desire to use ...

Number of pages: 117 Category: Civil Engineering

Dissertation for Master's degree (M.S) Chapter 1 History of dynamic analysis of liquid storage tanks and regulatory orders in this regard Abstract The main goal of this research is to investigate the effect of the presence of seismic isolators on the dynamic performance of liquid storage tanks during an earthquake. In this regard, it is necessary to first know the dynamic ...

Number of pages: 91 Category: Civil Engineering

Civil Engineering Master's Thesis - Soil and Foundation Mechanics Abstract From the past until now, one of the most economical methods to improve the mechanical properties of clay soils has been stabilization by means of additives such as lime and cement in construction projects such as road construction and consolidation of building foundations. Also, with the passage of time ...

Number of pages: 86 Category: Management

Abstract: This research deals with factors affecting information asymmetry by considering company variables and market factors and examines the relationship of information asymmetry with liquidity and liquidity risk. Next, it examines the relationship between liquidity risk and excess stock returns. For this purpose, the information of the companies admitted to the Tehran Stock ...

Number of pages: 79 Category: Electronic Engineering

Dissertation for Master's Degree (M.S) in Power Electricity, Abstract With the ever-increasing expansion of energy consumption in the world, the development of power networks is essential. But the creation of new transmission lines requires time and high costs, so if it is possible to use the same lines with a higher transmission capacity, it is very cost-effective. Today, the ...

Number of pages: 106 Category: Paramedical

Dissertation for Ph.D. Ph.D. Persian Summary Aripiprazole is an atypical antipsychotic drug that shows its therapeutic effect with a combination of antagonistic activity of 5-HT2A receptor and partial agonistic activity of 5-HT1A and D2 dopamine receptors. This drug is used in the treatment of schizophrenia, type I bipolar disorders and as an adjunctive treatment in major ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 64 Category: Medical Sciences

Dissertation to receive a general doctorate, abstract, introduction and purpose, among the banding problems in orthodontics, is the creation of decalcified areas around the bands. On the other hand, during the treatment, the bands are prone to loosening and the cement used must have sufficient strength. Recently, new compounds containing amorphous calcium phosphate (ACP) have ...

Number of pages: 145 Category: Chemical - Petrochemical Engineering

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

Number of pages: 125 Category: Paramedical

Dissertation: To obtain a master's degree in neonatal special care nursing Abstract Introduction: Premature babies are subjected to many painful interventions during care and treatment, and nurses should use non-pharmacological methods without risk to prevent short and long-term complications caused by pain, so this study was conducted to determine the effect of swaddling on the ...

Number of pages: 102 Category: Medical Sciences

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 ...

Number of pages: 60 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Chemistry (M.Sc.) Major: Analytical Chemistry Abstract In the present research, the measurement of the medicinal substance isoprenaline in water was carried out using a gas chromatography device with a flame ionization detector (FID). In order to extract this compound from aqueous samples, the technique of diffusion liquid-liquid ...

Number of pages: 81 Category: Electrical Engineering

Dissertation for Master's Degree (M.S) in Power Electricity, Abstract With the ever-increasing expansion of energy consumption in the world, the development of power networks is essential. But the creation of new transmission lines requires time and high costs, so if it is possible to use the same lines with a higher transmission capacity, it is very cost-effective. Today, the ...

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: 116 Category: Chemical - Petrochemical Engineering

Dissertation to receive M.Sc. Field of organic chemistry abstract green synthesis of 2-phenyl oxazoles boiled using ionic liquid Oxazoles are an important group of heterocyclic compounds. They are the structural subunits of various natural active products and are valuable synthetic and pharmaceutical precursors. Oxazoles have antibacterial, antifungal, anti-inflammatory and ...

Number of pages: 124 Category: Electrical Engineering

Master's Thesis in Electrical Engineering (Communication System) Abstract: Optimizing the placement of nodes in different environments for ultra-broadband sensor networks. Locator systems are systems that can detect the location of an object in a space. Such systems usually detect the distance between two objects by using radio communication and determine the location of the ...

Number of pages: 117 Category: Electrical Engineering

In order to obtain a master's degree in electrical engineering majoring in electronics, one of the important topics of signal processing (for example, in communication systems, audio signal coding, voice recognition) is to reduce and remove unwanted noise from the original signal and improve it. For this purpose, in the past decades, extensive research has been conducted to ...