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Number of pages: 149 Category: Geography - Urban Planning

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

Number of pages: 91 Category: Geography - Urban Planning

Dissertation for M.A Master's Degree Field: Natural Geography Major: Climatology in Environmental Planning Abstract Climate is one of the most important basic factors for identifying the natural areas of the earth, among the climatic elements, precipitation is of great importance. By examining the rainfall areas, it is possible to identify the potential of the country's water ...

Number of pages: 152 Category: Geography - Urban Planning

Academic Thesis for Master's degree in the field: Natural Geography-Climatology in Environmental Planning Abstract Rains of more than 100 mm in one day are one of the causes of floods and natural hazards, and knowing how they occur and the extent of their effects helps greatly in reducing possible environmental damage. The current research was conducted to identify and ...

Number of pages: 97 Category: Medical Sciences

Dissertation for receiving a general doctorate degree Abstract Introduction and purpose: Metallobetalactamases (MBL) are enzymes that are produced by non-fermenting Gram-negative bacilli such as Pseudomonas aeruginosa and make these strains resistant to carbapenems. As a result, Pseudomonas carrying metallobetalactamase genes are considered a serious clinical threat. Considering ...

Number of pages: 64 Category: Paramedical

Dissertation (or Thesis) to receive the master's degree ""M.SC"" in microbiology. Abstract: Abstract: E.coliO157H7 bacteria is one of the main causes of food poisoning and diseases such as diarrhea, hemorrhagic colitis, hemolytic uremic syndrome, thrombocytopenic purpura and even death in humans. The aim of this study is to evaluate pathogenic genes 1stx, 2stx, eaeA in urine ...

Number of pages: 102 Category: Food and Packaging Industries

Dissertation for receiving a master's degree (M.Sc.) in the field of food science and engineering, majoring in food microbiology. Abstract One of the effective ways to improve the quality of bread and baked goods is to optimize the fermentation conditions of the product. In addition to increasing the nutritional value of bread, proper fermentation improves the rheological ...

Number of pages: 67 Category: Agricultural Engineering

Dissertation for master's degree in the Department of Plant Pathology Abstract One of the limiting factors of potato cultivation in Golestan province are plant diseases, the most important of which are viruses, and among them, PVY (Potato virus Y) is one of the most destructive. This virus infects many species of the Solanaceae family, plus more than 60 other plant species. The ...

Number of pages: 101 Category: Educational Sciences

Dissertation for Master's Degree in Educational Psychology Spring 2019 Abstract Concept map is one of the teaching-learning strategies that can facilitate meaningful learning in students and relationships

Number of pages: 181 Category: Geography - Urban Planning

Dissertation for Master's degree (M.A) Major: Climatology Abstract: Geographically, Iran has little rainfall due to its proximity to the subtropical high pressure center of STHP and the prevailing weather conditions of this system. In the southern regions of the country, as a result of the longer rule of this system, the drought phenomenon becomes more acute. Rainfall changes ...

Number of pages: 174 Category: Architectural Engineering

Thesis (or dissertation) to receive the master's degree. In the field of architecture, the architectural trend of Bahman 93 abstract: Since the creation of multi-purpose and multi-functional spaces in

Number of pages: 100 Category: Management

Master's Thesis in Industrial Management - Operations Research. Abstract Many researches have been conducted in the field of urban transportation, each of them trying to improve these networks by specifying the type of vehicle and also a specific purpose. The current thesis also tries to provide a mathematical model to increase the income of Tehran subway. For this purpose, we ...

Number of pages: 200 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree in the field: Natural Geography, specialization: Geomorphology in environmental planning. The abstract of this research, using the descriptive and analytical method along with library and documentary studies and field observations, investigates the hydrogeomorphology of the Masuleh River basin with an emphasis on the waterfalls of the ...

Number of pages: 92 Category: Geography - Urban Planning

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

Number of pages: 104 Category: Psychology

Dissertation for receiving a master's degree (M.A.) orientation: general. Comparison of executive functions in patients with schizophrenia without psychotic symptoms, major depression without psychotic symptoms and normal people in Shiraz (2013). Abstract Various researches have proposed cognitive deficits as one of the important aspects of schizophrenia. In addition, the ...

Number of pages: 116 Category: Tourism - Tourism

Dissertation for Master's Degree in Geomorphology in Environmental Planning Abstract Geotourism is one of the newest and most popular branches of tourism and its fans are increasing every day and it is considered a tool for sustainable development. Geotourism or geotourism is a branch of tourism whose purpose is to enjoy seeing beautiful and amazing geological and ...

Number of pages: 93 Category: Psychology

Dissertation for receiving a master's degree (M.A.) major: psychology and education of exceptional children Abstract of the thesis (including summary, objectives, implementation methods and obtained results): The present study compares perception and visual and auditory memory in educable mentally retarded girls with and without physical-motor disabilities in Tehran. 1391-92

Number of pages: 247 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree in the field: Natural Geography Major: Climatology Abstract Floods are one of the natural phenomena that mankind has been witnessing since a long time ago. In Iran, due to the large area, multiple climates, and temporal and spatial density of rainfall in most watersheds, every year we see huge floods in most regions of the country. ...

Number of pages: 110 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.Sc) Field: Natural Geography - Hydrology and Synoptic Meteorology Abstract Damages caused by critical cold temperatures are increasing, especially in natural ecosystems and densely populated urban areas. Central Iran is a dry land prone to cold weather, especially during winter, and lacks resources to moderate temperature tensions, such as ...

Number of pages: 102 Category: Geography - Urban Planning

Dissertation for the Master's degree ""M.A"" Field: Geography and Urban Planning Abstract: Today, with the expansion of cities and the growth of urbanization, as well as the increase in problems and dilemmas caused by this process and the importance of finding integrated management and balanced, comprehensive and sustainable development of the city, the discussion of improving ...

Number of pages: 82 Category: Geography - Urban Planning

Dissertation for receiving a master's degree (M.A) in the field of geography and climatology in environmental planning. Abstract Due to the significant role of snow cover in the hydrological cycle, it seems necessary to investigate the characteristics of snow cover (snow cover level) with a high spatial and temporal resolution. The measurement of this parameter is generally done ...

Number of pages: 163 Category: Geography - Urban Planning

Dissertation to receive a master's degree (M.A) in natural geography, specialization: climatology in environmental planning, abstract: natural disasters have been the most important cause of human concern at all times. Landslides are one of the most important natural disasters that cause financial and human losses every year, which creates problems in the implementation of ...

Number of pages: 97 Category: Computer Engineering

Master's Thesis in Computer Engineering (Artificial Intelligence) Abstract Multi-agent systems are computing systems in which several agents interact and work together to achieve a specific goal. The reason for the emergence of such systems is the existence of situations in which a problem must be solved in a distributed fashion. For example, in situations where the use of a ...

Number of pages: 96 Category: Geography - Urban Planning

Dissertation for receiving the M.A. degree in the Department of Geography. The field of natural geography, the trend of climatology in environmental planning, is the abstract of a flood, a water flow that exceeds the capacity of the river channel and then flows into the adjacent floodplain. Although many local hydrological factors related to the catchment may affect the flood, ...

Number of pages: 92 Category: Electronic Engineering

Master's Thesis in Electrical-Control Engineering Abstract In this article, diagnosis, reconstruction and fault prediction of nonlinear systems with uncertainty are investigated. The diagnostic criterion is the residual signal calculated from the difference between the system output and a sliding mode viewer. The idea of ??sliding mode is to compensate the effect of ...

Number of pages: 92 Category: Computer Engineering

Master's Thesis in Computer Engineering (Artificial Intelligence) Abstract In recent years, many methods have tried to investigate the level of mental fatigue with different criteria. These methods have used different scales for this task, including performance and electrophysiological based measurements. Among these tools, electroencephalogram (EEG) seems to work better and ...

Number of pages: 120 Category: Geography - Urban Planning

Thesis for obtaining the master's degree ""M.A"" in the field of geography - climatology. Abstract Every research work is definitely done in order to find a problem in the society. When the problem in a society reaches a certain limit, a person feels that he should seek a solution, and for this reason, he researches. The movement of people is considered one of the important ...

Number of pages: 153 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.A.) Field: Geography and Urban Planning Abstract The revitalization plan or the restoration plan of the city actually fulfills the task of predicting the way of development of the existing phenomena for the continuation of the life of the people of the city. In other words, the urban revitalization plan - in the existing conditions and more ...

Number of pages: 129 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering - Structures Abstract: One of the important problems in seismic design and implementation of buildings is the significant dead weight used in it. Therefore, in the case of using lightweight concrete that has favorable mechanical properties, significant benefits can be obtained, including a reduction in dead load and ...

Number of pages: 142 Category: Management

Master's Thesis of Business Management International Business Abstract In the business world today, any organization that cannot produce faster, cheaper and with higher quality than its global competitors will be removed from the market. In this highly competitive field, organizations can be successful if they use all their human capacity. Today, one of the most important ...

Number of pages: 72 Category: Art - Graphics

Master's Thesis on Theater Directing Abstract This research is an attempt to explain Walter Benjamin's opinions and critical thoughts about modern art, and it is also an attempt to reread many of his opinions that are not directly aimed at the category of theater, but in the author's opinion, the scope of the foundations proposed by him is enough to tie the modern theater of the ...

Number of pages: 83 Category: Civil Engineering

Master's Thesis (M.sc) Civil Engineering, Soil and Foundation Mechanics Abstract In this research, the stability of soil reinforced with geogrid located on an underground cavity was analyzed using plaxis software, and the effect of several factors such as the number of geogrid layers, the length of the geogrid layer, the stiffness of the geogrid layer, the optimal location of ...

Number of pages: 149 Category: Civil Engineering

Dissertation for receiving the master's degree ""M. Sc."" Field: Agricultural Engineering Major: Water Structures Abstract The sediment transfer process is a completely complex, variable and non-linear phenomenon. So that the behavior of the river in the sediment transfer capacity for a certain discharge is different in different times. Therefore, due to the complexity of the ...

Number of pages: 169 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Soil and Foundation Mechanics Abstract: Since many structures are built in dense urban areas, there is an increasing need to build buildings and geotechnical structures on soft clay soils. Clay soils usually show significant creep deformation. Although a lot of research has been done on the creep behavior of natural clay, ...

Number of pages: 187 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Soil and Foundation Mechanics Abstract: Fine-grained clay soils have always caused problems in construction projects, one of the ways to improve the properties of problematic clay soils is to use lime to stabilize the soil. It swells. this

Number of pages: 138 Category: Management

Master's Thesis in Public Administration Abstract The purpose of this research is to investigate the effects of social capital on strategic decision-making in branches of Tejarat Bank of Isfahan province. The research method is a description of the survey type and the researched population includes all the employees of Tejarat Bank branches in Isfahan province, which was 1300 ...

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: 95 Category: Computer Engineering

Master's thesis (M.sc) Abstract: Nowadays, spam [1] is one of the main problems of search engines, because they make the quality of search results unfavorable. In recent years, there have been many advances in detecting fake pages, but new spamming techniques have also emerged in response. It is necessary to improve anti-spam techniques to overcome these attacks. A common ...

Number of pages: 151 Category: Civil Engineering

Master's thesis in the field of civil engineering, soil and foundation, today, due to the progress of the tunneling industry, the need to analyze and design underground structures in rocky environments is felt more than in the past. Although there are many numerical and practical software available in this field, none of them are complete and perfect in all fields, and each of ...

Number of pages: 106 Category: Literature - Persian Language

Dissertation for receiving a master's degree in the field: Persian language and literature. Abstract: Music is a combination of sounds in a pleasant way. The history of Iranian music is tied to the emergence of the Aryan race, the pleasant and melodious words gradually took the form of poems and songs and led to the creation of songs and music. Music and literature as two ...

Number of pages: 86 Category: Civil Engineering

Master's Thesis in Civil Engineering-Earthquake Abstract Using braces as a lateral resistance system in steel structures is one of the most common methods to withstand the forces caused by earthquakes. One of the weak points of this system is the compression resistance of the bracing member and its buckling as a result of reducing the member's load. Today, this problem has been ...

Number of pages: 159 Category: Civil Engineering

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

Number of pages: 194 Category: Civil Engineering

Master's Thesis in Civil Engineering, Earthquake Orientation Abstract: Bridge structures are affected by various loads and are designed according to the level of risk that is considered for them. Explosive loading is one of the loads that threaten the health of bridges. It is necessary to evaluate the amount of damage and performance of bridges under the effect of this loading ...

Number of pages: 93 Category: Literature - Persian Language

Dissertation for Master's degree (M.A) subject: Persian language and literature, love in Nimai's poems (based on the poems of Nima Yoshij, Faridun Moshiri, Sohrab Sepehri, Hoshang Ebtahaj and Forough Farrokhzad) by: Solmaz Reihani Abstract One of the dominant themes of poetry, in the poetry of most poets, from the beginning until now, is love. Many definitions have been given ...

Number of pages: 135 Category: Literature - Persian Language

The abstract of this thesis with the title ""Manifestation of Prophets' Stories in Sinaitic Poems"" deals with the quality of the poetic manifestation of Prophets' stories in Sinaitic poems. The contents are arranged in five chapters, the first chapter as the generalities of the research, stating the problem, the importance of the research, goals, questions and assumptions. ...

Number of pages: 74 Category: Tourism - Tourism

Master's Thesis: MBA Executive Management Abstract In this research, we investigate and identify the factors influencing the choice of travel packages by travelers. First, according to the knowledge of the existing market and the current activity of travel service offices, and according to the knowledge of the behavior of travelers and tourists, we prepare a model for choosing ...

Number of pages: 120 Category: Civil Engineering

Abstract Underground facilities are an integral part of modern society and are used for many applications, including subways and railway lines, highways, material storage and water and sewage transportation. is used Underground facilities built in areas affected by earthquake activity must withstand both earthquake and static loading. By reviewing the historical cases of ...

Number of pages: 146 Category: Literature - Persian Language

Dissertation for Master's degree (M.A.) major: Persian language and literature. Abstract The searching mind of man is looking for an answer to find out how human culture and civilization has evolved and what are these relative differences of human culture for? Undoubtedly, different types of folk culture, which include: fictional, literary, historical works, language arts, ...

Number of pages: 115 Category: Civil Engineering

Master's thesis in the field of structural civil engineering Abstract: Steel-reinforced concrete is a material that is widely used in civil engineering structures due to reasons such as suitable compressive strength, low cost of preparation and availability of raw materials. But reinforced concrete prepared from cement paste, ordinary aggregates, and steel rebars has weaknesses ...

Number of pages: 105 Category: Civil Engineering

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

Number of pages: 82 Category: Literature - Persian Language

An academic thesis for obtaining a master's degree in the field: Persian language and literature. Hermeneutics is a knowledge that deals with the understanding of a work and tries to provide a way to better understand the work by criticizing the methodological understanding. Schleiermacher, the father of modern Protestant theology, established a new form of intuitive ...

Number of pages: 141 Category: Management

Dissertation for Master's Degree in Public Administration, Human Resource Orientation Abstract The general purpose of this research is to examine the relationship between emotional intelligence and conflict and creativity. The research method is descriptive and its purpose is practical, and the data collection method is field and the tool is questionnaire. In the current ...

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: 226 Category: Civil Engineering

Master's thesis in the field of civil engineering, the trend of water engineering, which is used in various stages of the production of each product, is called virtual water[1] stored in the product. Many countries located in arid and semi-arid regions, by importing food, preserve part of the water needed for domestic production of products for use in other purposes. In this ...

Number of pages: 134 Category: Civil Engineering

Tendency of soil mechanics and foundations. Abstract: Investigating the behavior of soils due to different loadings is one of the most important issues in geotechnical engineering. The behavior of soils depends on several parameters such as grain size, grain type, loading method, stress history, etc. Non-alignment of main stress and main strain directions is a phenomenon that ...

Number of pages: 126 Category: Chemical - Petrochemical Engineering

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

Number of pages: 44 Category: Medical Sciences

-1. Introduction Helicobacter pylori, which was originally called Campylobacter pyloridis, is a microaerophilic Gram-negative bacillus that is mostly found in the deep parts of the mucous gel covering the gastric mucosa or between the mucus and the gastric epithelium (1). This bacterium can produce surface factors that are chemotactic for neutrophils and monocytes and in turn ...

Number of pages: 126 Category: Literature - Persian Language

Dissertation: In order to receive a master's degree in Persian language and literature, abstract in the upcoming thesis, love and its affiliates have been examined in the court of Saeb Tabrizi, a renowned poet of the Indian style. For this reason, first the verses in which the word love was directly present were extracted from the Divan of the poet. Then the concepts of love ...

Number of pages: 130 Category: Management

Dissertation for Master's Degree (M.A.) Major: Information Systems Management Abstract One of the important trends in business and management in the 21st century, which has been seriously raised since the mid-90s, is focusing on the spirituality of employees in organizations. Adherence of public sector servants to ethics and the crystallization of this commitment in their ...

Number of pages: 140 Category: Civil Engineering

Master's Thesis in Civil Engineering (Soil and Foundation) Abstract Dense sand piles have been used since 1950 in Japan and then in other countries of the world as one of the most effective and economical methods in strengthening soil in order to prevent liquefaction, increase bearing capacity and improve soils with different grain sizes. The process of implementing dense sand ...

Number of pages: 117 Category: Electronic Engineering

Presented to graduate education management as part of the academic activities required to obtain a master's degree in the field of mechatronics. Abstract As you know, air conditioner is a high consumption device and has a Freon refrigeration cycle. What drew the companies to the production of inverters was to solve the shortcoming of air conditioners in high energy consumption. ...

Number of pages: 145 Category: Biology - Environment

Dissertation for receiving a master's degree, specialization: microbiology. Abstract Staphylococcus aureus is considered as the third most important cause of food-borne diseases. Milk is the primary source of Staphylococcus aureus and milk products are a known source of staphylococcal poisoning. This study was conducted to determine the prevalence of Staphylococcus aureus in ...

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: 101 Category: Health - Health

Dissertation for Master's Degree in Food Safety and Health Abstract Introduction: In this research, according to the antimicrobial property and resistance of titanium dioxide-based silver nanoparticle packages to the penetration of gases, including oxygen, the effect of these packages on the fungal flora of consumer breads was compared with common polyethylene packages. This ...

Number of pages: 96 Category: Paramedical

Dissertation to receive a general doctorate degree Abstract Introduction and purpose: Since 1980, new groups of antibiotics called oxyimmunocephalosporins, which were resistant to the hydrolytic activity of beta-lactamases, were used to treat gram-negative bacterial infections. In the early 1990s, extended-spectrum beta-lactamases (ESBLs) produced by gram-negative bacteria ...

Number of pages: 103 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of mining chemistry Abstract: In this study, the effect of amide substitution on the surface of graphene oxide was studied. Two amines were chosen to change the contact surface and absorption rate. of a linear diamine such as ethylenediamine[1] and cyclic amine 6-aminouracil[2] with two different characteristics were evaluated. After the synthesis ...

Number of pages: 67 Category: Medical Sciences

Dissertation: Dissertation for receiving a specialized doctorate degree in pediatrics. Persian abstract. Title: Comparison of the effect of cefixime and azithromycin on pediatric dysentery. Infectious diarrhea is diarrhea caused by an infectious microorganism, of which Shigella is known to be the most important causative agent. Shigellosis in children may be associated with high ...

Number of pages: 95 Category: Medical Sciences

Dissertation to receive Ph.D. Persian Summary Otostegia persica is one of the Lamiaceae (mint) plants, which in traditional medicine is used to treat malaria, reduce blood sugar and blood pressure, and relieve S fever. The name of this plant in Persian culture is ""golder"". This genus has 3 species of perennial herbaceous plants in Iran: Otostegia aucheri, Otostegia micchauxii, ...

Number of pages: 89 Category: Fisheries

Dissertation for receiving the master's degree ""M.Sc."" Orientation: food industry Abstract quantitative and qualitative analysis of bacterial and fungal flora and total volatile nitrogen, 6 types of commercial food, extruded (floating) produced in Mazandaran province, including: starters 1 and 2, growth and endings 1, 2 and 3, were investigated in a period of 90 days (0, 30, ...

Number of pages: 48 Category: Veterinary Medicine

Dissertation for receiving the professional doctorate degree in veterinary medicine D.V.M. Abstract: Objective: The disease caused by avian reoviruses is one of the economically important diseases in the poultry industry, which causes increased losses and culling cases, arthritis, tenosynovitis, reduced yield and reduced egg quality in broilers and especially broiler chickens. ...

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: 121 Category: Chemical - Petrochemical Engineering

Dissertation of the doctoral course in the field of chemical engineering, biotechnology, abstract. Heavy oil transportation by pipeline is one of the most important and suitable methods of transportation, and the high viscosity of heavy oil compounds and their sedimentation in the transportation route is the most obvious problem of this type of transportation. Emulsifying heavy ...

Number of pages: 87 Category: Health - Health

Dissertation for Master's Degree in Health Sciences in Nutrition Abstract Background: Depression is one of the most common mental disorders. So far, few studies have examined the relationship between dietary patterns and depression in developing countries. Purpose: The purpose of this study was to investigate the prevalence of depression and its relationship with dietary ...

Number of pages: 91 Category: Electrical Engineering

Master's Thesis in Electrical-Control Engineering Abstract In this article, diagnosis, reconstruction and fault prediction of nonlinear systems with uncertainty are investigated. The diagnostic criterion is the residual signal calculated from the difference between the system output and a sliding mode viewer. The idea of ??sliding mode is to compensate the effect of ...

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: 79 Category: Chemical - Petrochemical Engineering

Dissertation Chemistry for Master's Degree Abstract Acrylic-based pressure-sensitive adhesives are more expensive than rubber-based adhesives, but they have a longer life and resistance to high temperatures, chemicals, UV rays, solvents, light, softeners, and the environment. Modification of acrylic pressure-sensitive adhesives is useful for improving adhesion properties. In ...

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: 121 Category: Electronic Engineering

Master of Mechatronics Abstract As you know, the air conditioner is a high consumption device and has a Freon refrigeration cycle. What drew the companies to the production of inverters was to solve the shortcoming of air conditioners in high energy consumption. To improve energy consumption in every part of the industry, one should pay attention to several parameters, it is ...

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: 59 Category: Chemical - Petrochemical Engineering

Dissertation for Master's Degree in Chemistry, Chemistry, Abstract: Epoxy resins, which are thermosetting polymers, have properties such as high thermal stability, good adhesion, high chemical resistance, easy molding, and moisture resistance. These resins are used as adhesives, coatings, paints and polymer tools. The most common epoxy resin is prepared from the reaction of ...

Number of pages: 117 Category: Biology - Environment

Dissertation for Master's Degree (M.Sc.) Orientation: Environment Abstract Based on the studies conducted, there are various processes for desulfurization of naphtha, which determine the method of desulfurization of naphtha, there are very determining parameters, and the type of sulfur compounds and operating temperature and pressure are one of the most important parameters that ...