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Thesis for obtaining a master's degree in the field: Chemistry, with a focus on preface. Computational chemistry is a new approach to known and familiar physical and chemical phenomena that can lead to a better understanding of the world around us. Today, with the increasing progress of computers, we are able to study various phenomena in very complex matrices such as biological ...

Master's thesis in the field of chemical engineering, abstract of the design of the Driso ring base and the use of hydrocarbon solvent in the dehumidification process in Farashband refinery, water vapor is one of the most important impurities in the flow of natural gas. Usually, the water vapor itself is not a problem, but instead the liquid or solid phase that forms when the ...

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 ...

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 ...

Academic Dissertation for Master's Degree in: Organic Chemistry 1-1) Introduction Today, nanotechnology [1] is an attractive subject that has attracted the attention of scientists, industrialists and even ordinary people due to the special properties and practical potentials of these materials. Considering the wide applications of carbon nanotubes, the methods of mass production ...

Thesis for obtaining a master's degree in organic chemistry. Abstract: Title: Effective three-component synthesis of new 4-aryl-5-(tert-butylamino)-2-(1-methyl-1H-pyrrol-2-yl)furan-3-carbonitrile derivatives. In this research, a direct and efficient method for preparing new 4-aryl-5-aminofuran derivatives through a three-component one-pot reaction ...

A master's thesis in the field of chemical engineering, abstract of biodiesel production from microalgae by supercritical carbon dioxide extraction method. In this research, different stages of biodiesel production from Chlorella vulgaris microalgae, especially the stage of oil extraction from it, were experimentally studied. The method of microalgae cultivation was selected ...

Chemical Engineering Master's Thesis Abstract: In this research, a method for the synthesis of ZSM-5 nanozeolite was presented. Then this nanozeolite was modified with CTAB surfactant and its characteristics were investigated using XRD, FT-IR, and SEM methods. This nanozeolite was used to prepare a modified carbon paste electrode (SMNZ/CPE) to measure sulfate anion. Also, the ...

Master's Thesis in Mechanical Engineering - Applied Design Abstract In recent years, most of the researches have been focused on compressive and combined loading in order to investigate the buckling of nanotube structures, and for this purpose, the work done on tensile loading is very limited. Since the results of compressive and tensile loading in carbon nanotubes are ...

Dissertation for Master's Degree in Mechanical Engineering (Applied Design) Abstract: Electromechanical micro and nano systems have been noticed due to their distinctive features and unique characteristics, mainly in the two fields of sensors and sensors, in various sciences such as mechanics, aerospace and medicine. Electrostatic stimulation is one of the simplest and most ...

Master's thesis in the field of electrical-electronic engineering Abstract of the construction of a humidity sensor using carbon nanotubes Today, humidity sensors have many applications in various fields, including environmental control processes, household applications, automotive industry, medicine, agriculture and chemical industries. Until now, various structures have been ...

Dissertation for Master's Degree in Medical Nanotechnology Abstract Choline is one of the constituents of phospholipids and plays an important role in fat metabolism. It is also necessary for the formation of acetylcholine, which is involved in the transmission of nerve impulses. Lack or increase of choline in the body causes complications and diseases in humans; Therefore, it ...

Thesis for obtaining a master's degree in the field: Chemistry, specialization: Analytical Chemistry, Abstract In recent years, the use of nanotubes as nanocarriers for drug delivery has been researched. In this research, carbon nanotubes CNT(5-5), CNT(0-6), BNNT(0-6) and BNNT(5-5) doped with Ga have been used. First, the nanotubes were drawn using Gauss View and Nanotube ...

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

Dissertation to receive a master's degree in the field: Chemistry, specialization: organic. Abstract In recent years, the use of nanotubes as nanocarriers for drug delivery has been researched. In this research, fullerene C60 and nine different nanotubes have been used as carriers of the drug molecule 8-hydroxyquinoline. First, the structure of HQ-8 drug molecule and nanotubes ...

The thesis for obtaining a master's degree in the field of mechanics, investigating and analyzing the free and forced vibrations of a multi-walled carbon nanotube placed in an elastic medium in order to achieve a clear mathematical understanding of the behavior of different walls of the nanotube under the influence of van der Waals forces and the elastic medium is one of the ...

Master's Thesis for Master's Degree Abstract Carbon nanotube can be considered the most amazing nanostructured material discovered so far. Unique features such as high strength, light weight, and high energy absorption capability have made this material recently attracted the attention of scientists in making bulletproof vests. In this thesis, a structural model in the Abaqus ...

Dissertation for M.Sc) in the field of mechanics in the field of construction and production. Abstract In the present research, the design and construction of the ECAR machine in order to investigate the effects of the process on carbon steel sheets was our goal. The desired research was carried out in the research workshop of Islamic Azad University, Jaseb branch. After the ...

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

((M.Sc)) Thesis for Master's Degree Abstract This study was conducted to investigate the toxic effects of functionalized single-walled carbon nanotubes on three cell lines MCF7, HUVEC, PC12. The cells were treated with different concentrations of two single-walled carbon nanotubes with different functional groups (carboxyl and cyclic functional groups) and incubated for 24, 48 ...

Dissertation for Master's Degree in Civil Engineering – Shahrivar Marine Structures, September 1992 Abstract: Pipe-in-pipe systems are widely used in transmission line applications.

Dissertation for Master's Degree in Civil Engineering/ Cold Water Engineering 1392 1-1- Introduction In this chapter, an overview of the concept of climate change and its causes and the effect of this phenomenon on natural resources and

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

Dissertation for Master's Degree in Civil Engineering (M.Sc) Orientation: Structure Winter 2013 Abstract: Resilient construction of important government buildings, infrastructure facilities and vital arteries due to the increase

Abstract: Today, air pollution has become one of the main management challenges in different countries of the world, so that countries, in addition to internal policies and measures, organize pollution in the field of

Dissertation for Master's Degree in Polymer Industry Engineering April 2013 Abstract Nowadays, the topic of energy and energy saving in all fields, even in homes, is one of the most important.

Thesis for the M.Sc degree in wood and paper industry engineering, Mehr 2013 Abstract: In this research, the physical and mechanical properties of nanocomposites obtained from cellulose nanofibers and poly polymers

Chapter 1 1-1-Introduction: Common fluids such as water, oils and ethylene glycol, which are usually used as heat transfer media, have a limited ability in terms of thermal properties, which is the first obstacle to compress and increase the efficiency of heat exchangers. One of the ways to improve heat transfer is to add particles to the fluid. This method is used for fluids ...

Thesis for obtaining a master's degree in environmental economics, Shahrivar 2019 Abstract: In this research, the relationship between gross domestic product, energy intensity, population, urbanization rate and Co gas emission rate

Master's Thesis in Public Administration - Financial Management, Abstract: In the past years, the trend of electric energy consumption has been increasing due to national growth and development, until the amount of fossil fuels consumed, natural gas and petroleum products, was equal to 385.5 barrels of crude oil in 2013. Of this amount, 306.1 barrels of crude oil have been ...

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 ...

Academic Thesis for Master's Degree Field: Business Management Major: International Business Abstract The increase in competition in the industry sector and the increase in the level of knowledge and awareness of customers has caused more attention to customer retention. The issue of customer loyalty and trust in the brand and the factors affecting it is of particular ...

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 ...

Thesis for obtaining a master's degree (MA) field: Geography, orientation: political. Abstract The Islamic world has a set of heterogeneous geopolitical features. Muslim countries have extremely important facilities for regional convergence and the formation of a regional system based on indigenous elements and mixtures. This thesis was done with the aim of analyzing the ...

The field of natural geography, climatology trend in environmental planning Abstract: Ardabil province in the northwest of the country with its long and elongated shape has faced climatic anomalies in recent years such as: increase in temperature especially in winter season, increase in the occurrence of hot winds, increase in evaporation and transpiration potential, decrease in ...

Dissertation for Master's Degree (M.A.) Direction: ""Domestic Business"" Introduction in Management Science To increase the performance of employees of an organization, various strategies have been proposed, such as increasing job satisfaction, applying continuous monitoring and implementing incentive and punishment programs, and other cases. In addition to the above solutions, ...

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 ...

Dissertation for Master's Degree in Physical Education, Sports Physiology, Introduction Today, there is fierce competition between athletes in different countries to win championship titles in the Olympic, World and Continental Games, and the effort to improve the performance of athletes has made sports scientists to work more in this field and has increased research in sports ...

Master's thesis in chemical engineering field, vapor pressure is an important thermodynamic property in process equipment design and chemical engineering unit operation. Therefore, experimental vapor pressure data that cover the entire range of vapor pressure are very valuable, but due to the lack of accurate measurements for the vapor pressure of some materials near the triple ...

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 ...

Dissertation for master's degree in electrical engineering, power orientation. Abstract The limitation of fossil fuel resources and the possibility of running out of fossil energy reserves, global warming, environmental pollution, price instability, as well as the increasing need of industrial and urban centers for energy, have made the international community think of suitable ...

Dissertation for 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 ...

Thesis for Master's Degree in Chemical Engineering Today, creating a safe environment in which all harmful factors are identified, evaluated, eliminated or controlled in order to guarantee the health of people and facilities is one of the priorities of industrial management. Safety science has also been reactive like the traditional approach to safety, that is, managers did not ...

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 ...

Dissertation for Master's Degree in MBA General Orientation Abstract: The common destiny of humans has placed planning for the world in a special position, whose inherent differences with planning for companies, non-profit institutions, and international and global organizations have necessitated further exploration. Recognizing the current process of planning for the world was ...

Dissertation for Master's Degree (M.A.) Major: ""Production and Operations Management"" Thesis abstract (including summary, objectives, implementation methods and results): With the increase in competition in the global trade arena, the way to supply and select suppliers of machinery and spare parts in the supply chain is considered an important challenge for most organizations. ...

Master's thesis in the field of civil engineering (environmental engineering) is an abstract of the surface absorption method, one of the effective methods for removing metals, including nickel metal. In this research, modified rice paddy has been used as absorbent material. Since this adsorbent is a natural material with a high contact surface, in addition to its high ability ...

Master's thesis in the field of civil engineering, structure orientation. Abstract: In this study, the effect of some effective parameters on the strength of polymer concrete based on epoxy resin, including hardener, filler, and solvent, has been investigated. Rice husk ash and broom stalk ash were used as fillers and acetone-toluene mixture with a ratio of 50-50% was used as a ...

The effect of fiber and pozzolanic materials on the mechanical properties of glass fiber reinforced concrete Master's Thesis of Civil-Structural Engineering Abstract The failure and destruction of concrete is highly dependent on the formation of cracks and microcracks. With increasing loading, microcracks are connected and form cracks. In order to solve this problem and also to ...

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 ...

Dissertation for Master's Degree in Civil Engineering, Structures, Abstract: This thesis is the results of a numerical and parametric study on the effect of reinforcing reinforced concrete shear wall with FRP composite and applying the results of the finite element method. The finite element program is compared and calibrated against experimental data. Then, the numerical ...

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

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 ...

In order to receive a master's degree in textile technology, it is essential to know the physical and mechanical properties of carpets to produce a quality product and maintain the proper appearance. In this research, an attempt has been made to provide a model to determine the relationship between the different parameters of these characteristics, therefore, to measure these ...

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 ...

Master's Thesis in Accidents Abstract: Vehicle traffic safety is one of the most basic principles in traffic engineering and transportation planning in the world. Non-observance of safety principles in the design of roads, maintenance and planning of transportation and traffic in the country has caused heavy damages to the society. Slip resistance[1] is considered as one of the ...

Master's thesis abstract shows the necessity of having a healthy environment and raising the health level of the society, the need to have proper planning to reduce the sources of air pollutants production and predicting these pollutants to prevent its harmful effects is inevitable. Prediction of pollutants can be useful in air pollution management and control. In this research, ...

Abstract Babol-Babolsar study area, with an area of ??1817 square kilometers, is under the Babol-Amol area, which is located in Mazandaran province. About 898 square kilometers of the area is the plain and 919 square kilometers are the heights of the northern slopes of Alborz. Babolrud river is the main source of surface water in the area. The climate of Babol-Babolsar plain is ...

Dissertation for Master of Electrical Engineering (M.A.) Direction: Power Abstract Reliability assessment in power networks is essential. With the discussion of smart grids in traditional power systems, a lot of attention has been paid to the use of renewable resources, electric cars that can be connected to the grid, and also other types of energy sources such as CHPs[1]. On ...

Dissertation for the Master's Degree in Business Administration (M.A) Major: Marketing Abstract The aim of this research is to design a conceptual model of sustainable tourism based on sustainable marketing. This model includes independent variables of social stability, political stability, service quality, environmental sustainability, cultural sustainability, sustainable ...

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. ...

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 ...

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 ...

Dissertation for receiving a Master's degree (M.Sc.) specialization: Environment Abstract Gaseous liquids obtained from the refining of sour gases are also sour and contain a large percentage of hydrogen sulfide and mercaptans. Therefore, after distilling and preparing the products, it needs refining processes to remove or reduce the amount of sulfur and mercaptans present. ...

Dissertation to receive the master's degree ""M.Sc. Orientation: ""Biochemical Engineering"" Abstract: The presence of sulfur compounds in gasoline creates a serious problem in air pollution, environment, corrosion of equipment and destruction of human health. The new environmental standards also impose strict limits on the amount of sulfur and aromatic compounds in gasoline. ...

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 ...

Dissertation for Master's Degree (M.Sc) Chemistry-Physics Abstract: In this thesis, the role of efficient marketing and sales techniques and methods in the chemical industry has been discussed and investigated. In fact, the main task of marketing, which is to find the market and the logical combination of 4 actions of attracting and attracting customer attention, making the ...

Dissertation to receive a master's degree in the field of Analytical Chemistry, Abstract Biosynthesis of gold nanoparticles with small size and biological stability are very important and have various biomedical applications. In this work, an easy and simple method for the green synthesis of gold nanoparticles using willow tree bark extract is reported. The bark of the willow ...

Dissertation for receiving the master's degree ""MSc"" specialization: applied chemistry Farsi abstract of the thesis or dissertation (including: summary of objectives, implementation methods and results obtained in maximum 10 lines): The possibility of manipulating matter at the nano level was first proposed in written form by Richard Feynman. During his conference called ...

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 ...

Master's thesis in the field of chemical engineering (simulation and process control) abstract design of the control system for the fluidized bed reactor for the production of linear light polyethylene of the LLDPE unit of Jam Petrochemical under the license of Basel and Spherilene technology with an annual production capacity of 300,000 tons of product is one of the largest ...

Dissertation for M.Sc degree, field: chemical engineering, orientation: biotechnology, research method: first, the surface of the gold electrode was coated with nickel and cobalt salt in suitable conditions, then the standard solution of atrazine poison was placed in contact with the modified electrode, and after optimizing a series of mechanical and chemical parameters, its ...

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 ...

Dissertation for M.Sc. Master's degree Abstract: Nanostructures introduced with the pioneering of fullerene and carbon nanotubes have opened new horizons in various fields of science and technology, the most important of which is the use of nanostructures in biological sciences. Silicon carbide nanostructures are considered heteroatom nanostructures that have some ionic ...

M.Sc. Dissertation for Master Degree in Chemical Engineering - Process Engineering Abstract Mercaptans are removed from hydrocarbon streams by various methods. The use of caustic soda solution and mucoli sieve beds are among the most widely used methods. In the oil and gas industries of our country, washing with relatively dilute caustic solution is often used to remove light ...

Master's Thesis / Inorganic Chemistry Abstract Considering the application of nonlinear optical properties (NLO) in technologies such as lasers, remote communication, photovoltaic cells, information processing and holography and the mineral diversity of these materials, we started a research in this field and focused on borazine-containing dyes. Our main goal in this research is ...

Abstract Gas hydrates are a group of solid host compounds that play an important role in many processes such as gas storage, transfer and separation, heterogeneous catalysis and water purification. These crystals are formed at a temperature higher than the freezing point of water and high pressure. There are different methods to calculate the free energy difference: 1) ...

Master's Thesis in the field of Chemical Engineering Abstract Investigation of parameters affecting the production of alumina gel by sol-gel method Sol-gel method is one of the common methods that is widely used to produce different nanoparticles. In this method, a solution of initiators is mixed with water in the presence of a catalyst, and hydrolysis and polymerization ...

Doctoral thesis in the field of chemical engineering abstract theoretical and experimental investigation of the continuous process of desalination of heavy crude oil using microwaves and ultrasonic waves Desalination of crude oil is the first step in oil refining, by which the undesirable compounds with the oil are separated before they reach the main unit. In order to reduce ...

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