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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: 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: 87 Category: Industrial Engineering

History of Aluminum Rolling Company 1- Introduction of Arak Aluminum Rolling Company in 1351, 2 km from Arak-Aqran road, on a land with an area of ??22 hectares, approximately 1.2 hectares of which is under the factory building and administrative role, and 2 hectares of which is green and open space, which is the development and expansion and renovation of Iran's industries. ...

Number of pages: 136 Category: Facilities - Mechanics

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 ...

Number of pages: 86 Category: Chemical - Petrochemical Engineering

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

Number of pages: 118 Category: Chemical - Petrochemical Engineering

Master's Thesis in the field of Chemical Engineering (no orientation) Abstract of the laboratory study of the wear phenomenon of liquid containing sand in pipelines. The studied fluid consists of two phases, liquid and solid. The liquid phase is water, and sand particles form the solid phase. In this research, the parameters affecting the wear rate, including: fluid speed, sand ...

Number of pages: 76 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering Field: Applied Design Abstract In this thesis, stability analysis of composite beam reinforced with carbon nanotubes on elastic support under axial force is investigated. The distribution of nanotubes is assumed to be uniform[1]. To determine the properties of materials reinforced with nanotubes, the results of molecular ...

Number of pages: 85 Category: Facilities - Mechanics

To get a master's degree in mechanical engineering Abstract: Today, the use of aluminum and magnesium alloys in the automotive and aerospace industries is increasing due to the high strength of these alloys and their light weight. Since the forming ability of these alloys is low at ambient temperature, forming these alloys at high temperatures improves their formability. ...

Number of pages: 155 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering (Energy Conversion) Abstract Numerical investigation of three-dimensional heat transfer in traveling wave amplifier collector with input power of 900 and 3000 watts, traveling wave lamp[1] is one of the types of microwave amplifiers. This lamp consists of five main parts, which are electron gun, slow wave structure, wave input and output ...

Number of pages: 104 Category: Medical Sciences

Dissertation to receive the degree of Doctor of Dentistry Abstract Introduction: One of the best methods for reconstructing bone defects in the mouth and teeth of patients is the use of autogenous grafting, which is still considered as the gold standard for augmentation of bone deficient areas. There are numerous intraoral areas for the removal of this bone graft, the maxillary ...

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: 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: 229 Category: Librarianship

Dissertation for receiving a master's degree, orientation: accounting, abstract in this research, pointing out that the implementation of the general policies of Article 44 of the Constitution in recent years as an important economic policy, for favorable economic development, reducing excessive production costs and getting rid of the inefficient performance of state-owned ...

Number of pages: 91 Category: Facilities - Mechanics

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 ...

Number of pages: 94 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering, Applied Design, Abstract In this research, an analytical solution is presented to show the size dependence and the effect of temperature difference on nonlinear free vibrations and post-buckling behavior of microtubes containing current. Based on Euler-Bernoulli model, strain gradient theory, Couple's stress theory and von-Carman ...

Number of pages: 129 Category: Facilities - Mechanics

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 ...

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: 114 Category: Biology - Environment

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 ...

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: 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: 104 Category: Chemical - Petrochemical Engineering

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 ...

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: 154 Category: Agricultural Engineering

Dissertation (or thesis) for receiving a master's degree in agriculture, agricultural biotechnology, abstract: Potato (Solanum tuberosum L.) is the most important nutritious plant after cereals, and it is the fourth major crop in the world after wheat, rice and corn. Due to its vegetative reproduction, the potato product is susceptible to contamination by bacteria, fungi, ...

Number of pages: 112 Category: Facilities - Mechanics

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 ...

Number of pages: 72 Category: Food and Packaging Industries

Dissertation for M.Sc. Degree: Food Industry 1.1 Introduction Along with the increase in population, the demand for food has also increased and this has caused the excessive use of chemical and organic fertilizers to increase crop production (Ardkani et al., 2005). Vegetables are rich in vitamins, minerals and antioxidant compounds, whose anti-cancer properties have been proven ...

Number of pages: 99 Category: Telecommunication Engineering

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 ...

Number of pages: 73 Category: Facilities - Mechanics

Dissertation for M.Sc. Mechanical Engineering - Manufacturing and Production Trend Abstract The manufacture of square and rectangular pipes has received more attention due to their wide use in industries that require high pressure and temperature. There are different methods for making rectangular tubes, including extrusion, stretching and pressing. Another method that has been ...

Number of pages: 29 Category: Research Methodology

Abstract Introduction: Intravenous feeding is considered a preferred and safe method for patients hospitalized in special wards, which despite its many advantages, has complications such as respiratory aspiration. Aspiration pneumonia is responsible for causing 15-20% of hospital infections and 39% increase in costs, and it is also considered one of the ten causes of death in ...

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: 171 Category: Industrial Engineering

Master's Thesis of Precision Instrumentation and Automation in the Oil Industry. Abstract: Corrosion rate prediction and wear rate constant in gas brain tube using neural network is a phenomenon that is very complex due to the influence of various factors and cannot be modeled easily. In order to predict and model corrosion, attention is paid to its physical, chemical and ...

Number of pages: 115 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering (Energy Conversion) Abstract In this thesis, the mass and heat transfer of water-aluminum oxide nanofluid in a two-dimensional porous medium under a magnetic field and in the vicinity of a vertical wall has been investigated. The boundary wall can be permeable or impermeable. The concentration and temperature of the wall ...

Number of pages: 84 Category: Facilities - Mechanics

Master's Thesis of Mechanics, Energy Conversion, Abstract In this study, by using the computational fluid dynamics technique, an attempt has been made to obtain the optimal dimensions for the injection nozzles of the vortex tube device. For this purpose, numerical simulation has been performed for different values ??of length, width, and height of injection nozzles, and other ...

Number of pages: 120 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering - Energy Conversion Abstract The vortex tube is a simple mechanical device that has no moving parts and is one of the equipment used in the refrigeration system, in which a high-pressure fluid enters the vortex tube through the inlet nozzles and splits into two streams with a lower and higher temperature than the inlet temperature, thus ...

Number of pages: 120 Category: Civil Engineering

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

Number of pages: 100 Category: Civil Engineering

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.

Number of pages: 104 Category: Civil Engineering

Master's Thesis in Civil Engineering - Earthquake Engineering March 2012 Abstract Reinforced soil is a special material that is created from the combination of soil and reinforcing member. Arming components resistant to N

Number of pages: 131 Category: Geography - Urban Planning

Thesis for obtaining a master's degree in the field of natural geography, geomorphology in environmental planning. Abstract: Studies on the effects of urban development on Zarjoub and Goharroud rivers in Rasht city have been carried out with the aim of improving the environmental quality of changing the conditions of the rivers from their pollution and flooding to favorable and ...

Number of pages: 130 Category: Social Sciences - Sociology

Master's Thesis in Advertising and Cultural Communication Abstract The present research has studied the relationship between the use of social networks and the religious identity of users with the aim of knowing the relationship between the individual characteristics of users and political and social factors with their religious identity and in order to answer the basic question ...

Number of pages: 228 Category: Social Sciences - Sociology

Dissertation for Master's degree (M.A.) abstract of the present study has studied the relationship between the use of social networks and the religious orientation of social network users using a survey method. This research was conducted in the Faculty of Fine Arts of Tehran University and among the students of different fields and courses of this faculty. Analysis of the ...

Number of pages: 200 Category: Geography - Urban Planning

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

Number of pages: 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: 92 Category: Chemical - Petrochemical Engineering

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

Number of pages: 82 Category: Computer Engineering

Master's Thesis in Artificial Intelligence Abstract Today, social networks such as Facebook have become very popular, because they allow people around the world to communicate with their friends without physical contact, leave messages for them, and express their opinions on various topics. Identifying organizations in social networks is very useful in different fields, so this ...

Number of pages: 104 Category: Computer Engineering

Master's thesis in the field of computer engineering (artificial intelligence) abstract of various image processing techniques are widely used in the field of dentistry. Among these applications, we can mention the identification based on dental images, the detection of dental caries, as well as the identification and examination of dental lesions, which mainly occur around the ...

Number of pages: 91 Category: Computer Engineering

Computer Engineering (Artificial Intelligence) Master's Dissertation Abstract Recommender systems are software tools and techniques that introduce items according to the user's needs. Content-oriented methods and shared filtering are successful solutions in recommender systems. The content-oriented method is defined based on the characteristics of the items. This method checks ...

Number of pages: 241 Category: Management

Dissertation for Master's Degree (M.A) Field of Study: Public Management (Transformation Orientation) Abstract In the current research, the relationship between organizational learning and organizational entrepreneurship in Noordulule Safasaveh company has been investigated. In this regard, organizational learning based on Nifa's model and organizational entrepreneurship based ...

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: 98 Category: Civil Engineering

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

Number of pages: 147 Category: Electronic Engineering

Master's thesis in medical engineering, bioelectrical trend, abstract of the separation of prosthesis projections and tissue implants in sinogram images of spiral CT scan using active contour methods for metal implants such as prostheses and tooth filling materials during the reconstruction of CT images with different methods, creates an artifact that appears as light and dark ...

Number of pages: 128 Category: Civil Engineering

Master's thesis in the field of civil engineering, soil and foundation, in this research, the bearing capacity of the conical pile group and the cylindrical pile group with the same volume are calculated and compared. Due to the lack of numerical studies and modeling by software for conical piles compared to laboratory tests in this field, in this research, the modeling of the ...

Number of pages: 109 Category: Electronic Engineering

Master's Thesis of Electrical Engineering - Power Abstract: Induction motor condition monitoring is an absolutely necessary and important technology to detect various defects at the initial stage. which can prevent the spread of unexpected defects in the initial stages. Approximately 30-40% of induction motor defects are related to stator defects. In this thesis, a comprehensive ...

Number of pages: 119 Category: Tourism - Tourism

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 ...

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: 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: 55 Category: Chemical - Petrochemical Engineering

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 ...

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: 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: 85 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Analytical Chemistry Abstract: Today, modern catalysts are used in the petrochemical industry for various reactions. Zeolites in the more advanced form of ""nano zeolite"" are very important in this regard due to their high surface area. The aim of this research is to provide a ""spectroscopy-chemimetry"" method and to provide an optimal ...

Number of pages: 137 Category: Chemical - Petrochemical Engineering

Master's thesis in the field: Chemical Engineering Abstract In this research, a comprehensive two-dimensional model based on the Finite Element Method (FEM) is proposed for modeling gas-solvent membrane contactors to remove carbon dioxide[1] from synthesis gas. Aqueous solution of monoethanolamine has been used as absorbent solvent stream and CO2/N2 gas mixture as gas stream. ...

Number of pages: 81 Category: Paramedical

Dissertation to receive a Ph.D. degree in Pharmacy Persian Summary Urinary tract infection (UTI) is the occurrence of infection due to the entry and growth of bacteria in any part of the urinary system, including the organs that collect and hold and excrete urine, namely the kidneys, ureters, bladder and urethra. UTI is usually caused by the entry of bacteria that can live in ...

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: 66 Category: Chemical - Petrochemical Engineering

Master's degree thesis in the field: Chemical Engineering Abstract In this project, an attempt was made to take a small step towards the synthesis of silicoaluminophosphate molecular sieve in nano dimensions and its use in fuel cells with methanol fuel. Therefore, in this way, nano silicoaluminophosphate was produced under optimal hydrothermal conditions. Next, XRD, FT-IR, SEM ...

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: 57 Category: Medical Sciences

Abstract Introduction: One of the most common types of fractures in the jaw and face area is the fractures of the middle area of ??the face and cheekbones, in which the anterior wall of the sinus is involved in the majority of these fractures. Following the fracture of the front wall of the sinus, soft tissue prolapse, sinusitis, rhinitis, pain and tenderness can occur when ...

Number of pages: 99 Category: Physical Education - Sports

Dissertation for Master's Degree in Sports Physiology Abstract: Title: The effect of menstrual cycle on selected factors of physical fitness in non-athletic high school female students Background and purpose: Women face special conditions during their life, one of them is menstruation. Cycles that repeat every 28 days and have three phases: luteal, follicular and bleeding. Some ...

Number of pages: 84 Category: Medical Sciences

Master's course in intensive care nursing Abstract Introduction: In the intensive care unit, ventilator-associated pneumonia ranks first among hospital infections. Since the role of nurses in preventing this complication is very important, the present study was conducted in order to compare the effect of two methods of face-to-face training and clinical guidelines for the ...

Number of pages: 121 Category: Biology - Environment

Medical Biotechnology Master's Thesis Background Abstract: Fibroblast growth factors (FGF) and their receptors (FGFR) play an essential role in the cell. Dysregulation of FGF/FGFR signaling pathways is associated with many abnormalities and cancer development. From this group, type 2 fibroblast growth factor receptor plays an essential role in cell signaling and regulation of ...

Number of pages: 107 Category: Paramedical

Dissertation for obtaining a specialized doctorate in oral and maxillofacial radiology Abstract: Introduction and purpose: The purpose of radiological evaluation of the temporomandibular joint (TMJ) is to depict suspected clinical disorders. This study was conducted with the aim of comparing the position and morphology of the condyle in symptomatic and asymptomatic patients with ...

Number of pages: 84 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 phenylmercury chloride. To prepare this polymer, methacrylic acid (active monomer), ethylene glycol dimethacrylate (cross-linking agent), 2,2-azobisisobutyronitrile (initiator), phenylmercury chloride (target ...

Number of pages: 169 Category: Electronic Engineering

The master's thesis of precision instruments and automation in the oil industry. The introduction of the entire research is one of the important scientific, technical and economic topics, the issue of corrosion of metals and the protection of metal facilities. Investigating the topic of corrosion is not so simple and with all the research done, its factors are still not known ...

Number of pages: 83 Category: Physical Education - Sports

Master's Thesis Field: Physical Education (M.A) Direction: Management Abstract: In this research, the motivations and effective factors of the spectators to watch the volleyball game of Al-Mahdi Hormozgan team were discussed. The method of this research is descriptive-correlation which was conducted in the field. The research tool was a twenty-seven question questionnaire about ...

Number of pages: 68 Category: Electronic Engineering

Academic thesis for obtaining a master's degree in electrical engineering, electronics orientation Abstract In this thesis, firstly, the introduction of graphene, its manufacturing method, advantages and applications in field effect transistors and the conducted research will be extracted and examined, then we will have an overview of the structure of field effect transistors ...

Number of pages: 132 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of chemical nanoengineering Abstract: Fabrication of ceramic nanofiltration membrane for chloride ion separation (case study: gas condensate) In this research, chloride ion separation using alumina-titania double layer nanofiltration membrane has been investigated. For this purpose, first, the alumina-titania double-layer membrane is made based on ...

Number of pages: 62 Category: Medical Sciences

Dissertation for receiving the degree of Doctor of Dentistry Abstract The long-term clinical success of implants is dependent on osseointegration and adhesion of soft tissues and epithelium to implant surfaces. Various indices including: plaque index, gingival index, bleeding during probing and bone resorption are used to evaluate the health of the soft tissues around the ...

Number of pages: 81 Category: Medical Sciences

Dissertation for receiving a professional doctorate degree in the field of medicine Persian abstract Title: Comparison of the prevalence of obsessive-compulsive disorder in children with and without functional constipation referred to the pediatric clinic of Amirkabir Hospital in 2013 Introduction: Constipation in childhood is a common problem that causes discomfort to the child ...

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: 122 Category: Physics

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: Chemical - Petrochemical Engineering

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

Number of pages: 110 Category: Electronic Engineering

Dissertation for Master's Degree in Mechatronics Engineering Persian Abstract The purpose of this project is to introduce a new approach for troubleshooting gas transmission pipelines using mechanical waves, which is much cheaper and easier than other methods. who are currently working. These lines are usually located in difficult environmental conditions and far away and in ...

Number of pages: 82 Category: Chemical - Petrochemical Engineering

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