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Number of pages: 127 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 125 Category: Biology - Environment

Master's thesis in the field of civil and environmental engineering. Abstract The main problem in using landfill biogas is the presence of pollutants such as hydrogen sulfide. Hydrogen sulfide gas is colorless, toxic, flammable, and has an unpleasant odor. It is highly toxic and produces SO2 when biogas is burned. In addition, hydrogen sulfide has a corrosive effect. It costs a ...

Number of pages: 115 Category: Chemical - Petrochemical Engineering

In order to obtain a master's degree in chemical engineering, abstract freezing of fans in operational units, including the hydrogen unit of Imam Khomeini Shazand Refinery in the cold seasons of the year is one of the important problems in this refinery. In order to provide a suitable solution to this problem, we must have a suitable estimate of the fan outlet temperature. The ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

Chemistry - trend of organic chemistry Abstract Coumarin or (2-H-chromen-2-one) and their derivatives are compounds that are naturally present in many plants, including tonka beans. And they are an important class of the family of benzopyrone compounds. Coumarin and its derivatives are considered essential elements in many bioactive compounds such as anticoagulant, anti-HIV, ...

Number of pages: 99 Category: Chemical - Petrochemical Engineering

Dissertation to receive a master's degree in the field of chemical engineering, thermokinetic orientation. Abstract With the increase in the use of fuel cells in the industry and as an on-site application, there is a need to develop production units on the site of hydrogen. In this research, a monolithic catalytic reformer in which autothermal reforming of methane takes place is ...

Number of pages: 91 Category: Chemical - Petrochemical Engineering

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

Number of pages: 119 Category: Electrical Engineering

Dissertation for M.Sc. Electrical Engineering - Control Abstract Considering the high consumption of petrochemical products in the world today and Iran's high potential for the development and supply of petrochemical feedstock, petrochemical complexes are of special importance. Therefore, one of the important reactions called acetylene hydrogenation has been investigated and ...

Number of pages: 101 Category: Textile Industries

Dissertation to receive the master's degree ""M.S.c"" specialization: Textile chemistry and fiber science Abstract: One of the important processes in the completion of textile goods is the underhand improvement in textiles. Finishing the softener provides a desirable softness to the fabric and improves its properties, and the main goals of the softener are to reduce static ...

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: 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: 85 Category: Physical Education - Sports

Educational Department of Physical Education and Sports Sciences, Academic Thesis for Master's Degree Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and ...

Number of pages: 113 Category: Biology - Environment

Dissertation for Master's Degree in Civil Engineering Majoring in Environmental Engineering Abstract In this research, the effect of biological reactions on the removal of organic substances in wastewater during transfer from production sources to the treatment plant in conventional networks and new small diameter networks was investigated. For this purpose, a part of these ...

Number of pages: 116 Category: Civil Engineering

Dissertation for master's degree in the field of civil engineering, road and transportation, the abstract of asphalt failures is one of the problems that are the concern of road and transportation engineers today, and every year huge costs are spent on the maintenance and repair of asphalt roads. Many efforts have been made to increase the strength and life of asphalt, among ...

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: 113 Category: Biology - Environment

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. ...

Number of pages: 111 Category: Biology - Environment

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. ...

Number of pages: 60 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Chemistry (Applied Chemistry - Polymer) Abstract: Ethylene polymerization was successfully performed in the presence of Phillips catalyst and in the slurry phase. In the continuation of the work, the effect of some effective parameters in polymerization, including the effect of trialkylaluminum, the effect of 1-hexane comonomer, the effect of ...

Number of pages: 120 Category: Physical Education - Sports

Dissertation for Master's Degree (M.A) Major: Sports Biomechanics Abstract Objective: In recent years, the use of permitted sports supplements has become one of the most important parts of an athlete's preparation to participate in the field of competition. Despite the many researches that have been conducted in the field of supplements, there is no general consensus on ...

Number of pages: 95 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 63 Category: Physical Education - Sports

Academic Thesis for Master's Degree in Physical Education and Sports Sciences Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and body mass index 22.2±1.2 ...

Number of pages: 171 Category: Physics

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 ...

Number of pages: 142 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 60 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 136 Category: Physics

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) ...

Number of pages: 105 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 130 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree (M.Sc.) Field: Gas Processing and Transmission Engineering Abstract: Today, one of the problems in gas transmission lines is the gas hydrate phenomenon, which is a combination of light gases such as methane, ethane or carbon dioxide with water molecules under certain temperature and pressure conditions to form an ice-like substance that contains ...

Number of pages: 114 Category: Electronic Engineering

Dissertation for Master's Degree in Power Electrical Engineering Abstract In this thesis, a hybrid power generation system using fuel cell/battery/supercapacitor to power a light electric vehicle with independent excitation electric motor drive system was studied and simulated. The electric vehicle system consists of a feed and control system, multiple sources, power control ...

Number of pages: 131 Category: Chemical - Petrochemical Engineering

Chemical engineering master's thesis without preface today simulation in processes can be an important tool to solve problems in different industries. A new idea that should be done in the real world by trial and error with a lot of costs and risks can be simulated in the environment of a strong software and the results can be used. Simulation can also be used to check and ...

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: 129 Category: Chemical - Petrochemical Engineering

Doctoral Dissertation in Chemical Engineering-Biotechnology Abstract The purpose of this study was to produce polyhydroxyalkanoate biopolymer using glucose, fructose, molasses and whey carbon sources by microorganisms Azohydromonas lata DSMZ 1123, Azotobacterbeijerinckii DSMZ 1041, Cupriavidus necator DSMZ 545, Hydrogenophaga pseudoflava DSMZ 1034. In the first stage, to screen ...

Number of pages: 68 Category: Physical Education - Sports

Academic Thesis for Master's Degree in: Physical Education and Sports Sciences, Sports Physiology, Abstract The purpose of this study was to evaluate the effect of one week of glutamine supplementation on oxidative stress caused by activity. Nineteen young, healthy, non-smoking men voluntarily participated in this study. Subjects were randomly divided into placebo (10 people) ...

Number of pages: 78 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 71 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 235 Category: Chemical - Petrochemical Engineering

Dissertation for receiving M.Sc degree) Major: Inorganic Chemistry Dissertation Abstract: We used Density Functional Theory (DFT) method at DFT/6-31G level to investigate the geometric structure, relative energies and electronic properties of possible protropic tautomers in Nexium, Protonix and Lamivudine. The structure and relative energies of tautomers in different solvents ...

Number of pages: 74 Category: Paramedical

Persian summary: Coumarin derivatives are of great interest due to their biological importance and medicinal activities. A number of coumarin derivatives, especially biscoumarins, are known to be anti-inflammatory due to their numerous and prominent features such as anti-blood clots. In this regard, one-pot synthesis of biscoumarin derivatives using aromatic aldehydes, ...

Number of pages: 56 Category: Chemical - Petrochemical Engineering

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

Number of pages: 79 Category: Biology - Environment

Master's Thesis in Chemical Engineering Abstract of Electrochemical Analysis of Formaldehyde Formaldehyde is one of the organic chemicals that is widely used as a raw material in many industries. Industrial effluents that contain high concentrations of formaldehyde must be treated before entering the environment due to its possible carcinogenic and mutagenic risks. The purpose ...

Number of pages: 80 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Organic Chemistry. Summary of the research done in this thesis consists of two parts, the first part is the synthesis of the precursor of 4,5-dihydropyrrolo[1,2,3-hi]indole-1,2-dione (compound 1) and one-pot, three-component synthesis of new derivatives of spiro terecates in water-green solvent and in the presence of HMTA catalyst. The second ...

Number of pages: 91 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Organic Chemistry Abstract: The new works carried out in this thesis include the condensation reaction of arylglyoxals prepared during the oxidation of acetophenones related to selenium dioxide with 1,2-diaminobenzene, 2,3-diaminomalonitrile, 2,3-diaminopyridine and 4-nitro-1,2-diaminobenzene in order to prepare quinoxalines and the ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Organic Chemistry Abstract of the research done in this thesis consists of two parts, the first part includes the one-pot synthesis of new spiro compounds using 4,5,5-trimethyl 4,5-dihydropyrrolo{1,2,3-hi}indole 1,2-dione with aromatic amines and vectors. The second part includes the synthesis of new derivatives of spiro compounds using ...

Number of pages: 123 Category: Medical Sciences

Dissertation to receive the Ph.D. degree in Pharmacy Persian Summary A group of N-aryl phthalimide derivatives were evaluated for anti-inflammatory activity. Non-steroidal anti-inflammatory drugs are considered as analgesic and anti-inflammatory and their primary mechanism is cyclooxygenase enzyme inhibition. Cyclooxygenase is a key enzyme in the production of prostaglandin and ...

Number of pages: 122 Category: Biology - Environment

Dissertation for Master's Degree (M.Sc.) Orientation: Environment Abstract Environmental risk assessment is the examination of risks that result from natural events, technology, practices and methods, processes, productions, chemical, biological, radiological and industrial activities and may threaten ecosystems, animals and people. A preliminary research has been done in the ...

Number of pages: 107 Category: Chemical - Petrochemical Engineering

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

Number of pages: 162 Category: Biology - Environment

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

Number of pages: 126 Category: Chemical - Petrochemical Engineering

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

Number of pages: 104 Category: Chemical - Petrochemical Engineering

Master's Thesis in Chemical Engineering (Process Simulation and Control) Abstract Modeling and Simulation of the Electrostatic Desalination Process of Crude Oil by Elham Ariafard The aim of this research is to model the desalination process of crude oil based on the population balance method. For this purpose, the one- and two-stage electrostatic desalination process, which ...

Number of pages: 90 Category: Chemical - Petrochemical Engineering

Master's degree thesis in the field of chemical engineering, thermokinetic and catalyst orientation. Abstract The purpose of this research is to estimate the electrical conductivity of natural waters based on modern mathematical methods. To achieve this, the waters of the Karaj and Jajrud rivers are considered as special cases. For this purpose, 20 sampling stations were ...

Number of pages: 28 Category: Biology - Environment

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

Number of pages: 107 Category: 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: 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: 95 Category: Chemical - Petrochemical Engineering

Master of Chemistry (Chemistry-Physics) Abstract In the present work, the theory of stable structures, bond energies and interactions in H2SO4...HNO...(H2O)n clusters (n = 0-2) were studied at the MP2/aug-cc-pVDZ computational level. The presence of one and two H2O molecules strengthens the interaction between HNO and H2SO4 molecules, and this indicates the positive role of H2O ...

Number of pages: 63 Category: Biology - Environment

Thesis for receiving a master's degree in the field of chemical engineering, environmental orientation. Abstract: Ethylenediaminetetraacetic acid, due to its ability to solubilize and deactivate metal ions by forming a complex in the aqueous environment, has many applications, especially as a chelating agent for iron fertilizer. The synthesis of this substance is done in ...

Number of pages: 85 Category: Biology - Environment

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

Number of pages: 83 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 82 Category: Chemical - Petrochemical Engineering

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

Number of pages: 249 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree (M.Sc) Direction: Applied Chemistry Persian Summary According to international standards, the sulfur in the fuels used in the transportation industry, as one of the most important polluting industries, should be reduced to about 10 ppmw, while many refineries in the world produce fuels with a sulfur content of more than 1000 ppmw. One of the new ...

Number of pages: 86 Category: Chemical - Petrochemical Engineering

Dissertation for M.Sc Master's degree, specialization: process engineering, abstract of the proposed project, the feasibility of converting gas condensates into products with higher added value and consumable fuels such as gasoline. Considering the huge gas and oil reserves in Iran, this country is one of the major importers of gasoline. Therefore, it is very necessary to ...

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: 159 Category: Physics

Dissertation for Master's Degree in Physical Chemistry Abstract In this research, to evaluate the intermolecular potential energy level (IPS) of the F2-F2 system, the second virial coefficient of fluorine gas was calculated. The IPSs were obtained using the QCISD(T) level of theory and the cc-pVTZ-aug basis set. Calculations were performed in the temperature range of 100 to 600 ...

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: 116 Category: Veterinary Medicine

Dissertation: To obtain the degree of professional doctor of veterinary medicine (D.V.M.) Farsi abstract title: Evaluation of the total dissolved solids (TDS) factor in the drinking water of poultry farms in Piranshahr city. Water is considered one of the most important chemical substances in terms of biology and exists in solid, liquid, and vapor forms in nature. Water is one ...

Number of pages: 76 Category: Chemical - Petrochemical Engineering

Dissertation for receiving a master's degree in applied chemistry, Persian abstract. In this research, graphite particles were converted to graphene oxide by Hammer's method. Graphene nanoparticles are one of the best and most effective absorbent materials that have been produced so far. Graphene is one of the successful allotropes of carbon in the field of drug absorption and ...

Number of pages: 75 Category: Food and Packaging Industries

Dissertation for M.Sc degree in food science and industry Abstract Oils and fats are oxidized during storage at high temperatures and their nutritional quality decreases. The process of oxidation of oils and fats and the formation of free radicals causes the development and development of cancer. These damages can be prevented by consuming antioxidant compounds found in fruits ...

Number of pages: 88 Category: Paramedical

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 ...

Number of pages: 80 Category: Chemical - Petrochemical Engineering

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 ...

Number of pages: 97 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Analytical Chemistry Abstract Nowadays, nanostructures have attracted the attention of many researchers due to their new features and applications in different fields and branches of science and technology. Meanwhile, nanocomposites, due to their unique physical and chemical properties, as well as potential applications in catalytic, ...

Number of pages: 57 Category: Food and Packaging Industries

Master's Thesis in Agricultural Engineering, Food Industry, Abstract: The effect of the water extract of the monkey flower plant on the storage time and quality of frozen rainbow salmon. Recently, due to the avoidance of using chemical preservatives in the food industry, the attention of researchers has been drawn to the use of natural compounds in order to increase the shelf ...

Number of pages: 85 Category: Electrical 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: 91 Category: Food and Packaging Industries

Dissertation for receiving a master's degree in the field of agricultural engineering, food science and food industry, food technology. Abstract In this research work, the effect of saponin of Chubak plant on the stability and increase of foam in beer has been done. As we know, the root of Chubak plant is a rich source of saponin compounds, which are the most important and ...

Number of pages: 71 Category: Animal Husbandry - Poultry Farming

A Master's Thesis in the field of Animal Science- Animal Physiology Abstract: The effect of adding dry citrus pomace powder on the reproductive performance of old broiler chickens with the aim of improving egg quality and sperm penetration into the vitelline layer and increasing fertility. The number of 36 broiler chickens of the Cobb 500 strain and their 12 hens of the same ...

Number of pages: 74 Category: Food and Packaging Industries

Dissertation for M.Sc. in Food Engineering, Agricultural Orientation Abstract The focus of recent research has been photochemical substances derived from plants, which are due to their positive effects on human health. During processing in factories, food can be enriched with active compounds such as phenolic compounds that have benefits and physiological properties such as ...

Number of pages: 86 Category: Facilities - Mechanics

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 ...

Number of pages: 158 Category: Facilities - Mechanics

Dissertation for obtaining a doctorate degree in the field of mechanical engineering - manufacturing and production: the advantages of using semi-solid processes are reducing the amount of gas porosity and shrinkage and modifying the microstructure, which aims to improve the mechanical properties of the part. In this research, the cooling ramp method has been used to produce the ...

Number of pages: 95 Category: Electrical Engineering

Dissertation for Master's Degree in Power Electrical Engineering Abstract In this thesis, a hybrid power generation system using fuel cell/battery/supercapacitor to power a light electric vehicle with independent excitation electric motor drive system was studied and simulated. The electric vehicle system consists of a feed and control system, multiple sources, power control ...

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: 135 Category: Food and Packaging Industries

Dissertation for Master's Degree in Agricultural Engineering - Food Science and Technology - Food Technology Abstract Vegetable oil is considered a strategic product in our country. The amount of import of this product in the country is important, and for this reason, the effort to produce crude oil extracted from oilseeds in the country, at the level of competition with its ...

Number of pages: 70 Category: Veterinary Medicine

Dissertation: To receive the degree of professional doctor of veterinary medicine (D.V.M.) Farsi abstract Title: Investigating the contamination of drinking water of broiler farms in Piranshahr city with Escherichia coli bacteria Drinking water is one of the vital and nutritious factors that is necessary for optimal growth and control of body temperature and should always be ...

Number of pages: 106 Category: Medical Sciences

((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 ...

Number of pages: 84 Category: Animal Husbandry - Poultry Farming

- Introduction Among herbivorous domestic animals, ruminants have a great contribution in food supply and human health. On the one hand, nutrition has played a major role in the economic and functional efficiency of these animals, so that almost two-thirds of the total cost of animal production in different livestock breeding units is allocated to feed costs, and on the other ...