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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: 105 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering - Applied Design Abstract of elastoplastic analysis of thick-walled tanks made of targeted materials with linear kinematic stiffness behavior under cyclic loading, stress analysis and deformation of spherical thick-walled tanks made of subject materials under internal pressure loading and temperature difference are discussed in this ...

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: 124 Category: Facilities - Mechanics

Presented to obtain a master's degree in the field of mechanical engineering-applied design orientation. Abstract In this research, we investigated the free vibration of a cracked beam and found its natural frequencies. In the first part, by using the open crack model, by modeling the cracked part as a beam-shaped element and satisfying the boundary conditions, we obtained the ...

Number of pages: 133 Category: Civil Engineering

Dissertation for receiving a master's degree in the field of structural oriented civil engineering, 2013, although the construction and design methods of structures have expanded over the years, but still the effect of earthquakes is one of the most important.

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: 137 Category: Civil Engineering

Dissertation for receiving a master's degree in the field of civil engineering in the field of earthquakes. Abstract: The introduction of damage generators is very close to the concept of inelastic behavior and, as a result, hysteresis energy. Therefore, it can be said that the hysteresis energy at these levels can be a significant criterion for the design or control of the ...

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: 143 Category: Civil Engineering

Civil engineering, soil and foundation, abstract, considering that all engineering infrastructures and vital urban and non-urban places and arteries such as: foundations of buildings, bridges, silos, dams, retaining walls, marine structures, industrial facilities, etc. . . All spread on a platform called the earth. The importance of investigating the type of instability in ...

Number of pages: 231 Category: Civil Engineering

Dissertation to receive M.Sc degree in civil engineering, structural orientation. Abstract: One of the ways to strengthen the building against lateral loads is the use of a wind system (convergent or divergent). The increasing use of steel braces to deal with earthquake forces requires that the seismic performance of these types of systems be given more attention. The common ...

Number of pages: 79 Category: Facilities - Mechanics

Introduction Engineers are always looking for better quality. In mathematics and computer science, it is the process of choosing or finding the best member in the sets of available options. Every process has the potential to be optimized and complex problems can be modeled as optimization problems in the fields of engineering, economic and business sciences. The goal of modeling ...

Number of pages: 112 Category: Facilities - Mechanics

The thesis for obtaining a master's degree in the field of mechanical engineering, applied design, is an abstract of the experience of losing a limb. The full understanding of this feeling will be possible only when a person loses a limb. Obesity and longer life expectancy have increased the number of knee replacement implants [1]. Due to the increase in life expectancy as well ...

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: 160 Category: Facilities - Mechanics

Master's Thesis in Mechanical Engineering (Applied Design) Abstract of Gas Turbine Rotor Stress Analysis Using Continuous Damage Mechanics In this thesis, Lometer's unified model based on continuous damage mechanics is used to model the stress-strain behavior of a gas turbine rotor sample. The unified damage law, which is used to model creep-fatigue interaction, is based on the ...

Number of pages: 68 Category: Facilities - Mechanics

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

Number of pages: 154 Category: Civil Engineering

Dissertation for obtaining a master's degree in civil engineering – Spring 2014 structure trend, first chapter, general research 1-1- Introduction: Mostly structures for severe earthquakes and surface acceptance

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: 169 Category: Civil Engineering

Thesis for receiving a master's degree in the field of civil engineering with structural orientation in February. 2013 Abstract: In recent years, significant progress has been made in the field of improvement and resistance

Number of pages: 170 Category: Civil Engineering

Dissertation of Master's Degree in Civil Engineering – Earthquake Engineering 2013 Abstract: Concrete beam and slab bridges with neoprene supports are among the most common highway bridges in the country.

Number of pages: 115 Category: Civil Engineering

Master's Thesis in Civil Engineering - Structural Orientation, February 2013 Abstract: The performance of a building during an earthquake depends on many factors, as a result, predicting the seismic performance of structures should be considered either explicitly or implicitly as part of the design or evaluation. Predicting the seismic response of the structure is very ...

Number of pages: 173 Category: Industrial Engineering

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

Number of pages: 108 Category: Civil Engineering

Dissertation of master's degree in structural engineering February 2019 Chapter 1: Introduction 1-1. General, one of the most important natural events that always affects the lives of human beings

Number of pages: 109 Category: Psychology

Master's Thesis in Psychology (M.A.) Orientation: Clinical Abstract The main goal of people with rhinoplasty is to achieve an imaginary shape of the nose that they think is more in harmony with their face in order to achieve a more favorable image of their body. Research has shown that there is a relationship between metacognitive components and cosmetic surgery. The present ...

Number of pages: 132 Category: Educational Sciences

Dissertation to receive a master's degree in educational technology (M.A) Abstract This research was conducted with the aim of investigating the effect of TEAL on learning and memorization of high school chemistry course. The research method was based on quasi-experimental nature with a pre-test-post-test design and a control group. The statistical population in this research is ...

Number of pages: 157 Category: Psychology

Thesis for obtaining a master's degree, field: psychology, orientation: clinical, abstract: the present study was conducted with the aim of comparing social anxiety, body image, and hope for life in men and women applying for cosmetic surgery with normal people. Research method: This research is a causal-comparative study. In this research, 100 people applying for cosmetic ...

Number of pages: 165 Category: Physical Education - Sports

Master's Thesis of Physical Education and Sports Sciences, Sports Physiology, Abstract Doxorubicin (DOX) is an antibiotic with a wide range of anti-tumor and anti-cancer (anti-neoplastic) functions and has been widely used in the treatment of various cancers since the late 60s. Unfortunately, the clinical use of this highly effective anticancer drug has been limited, and this is ...

Number of pages: 106 Category: Civil Engineering

In order to obtain a master's degree in the field of civil engineering - soil and foundation orientation, Abstract Nowadays, circular foundations are more or less used for structures, especially structures that have axial symmetry. In this research, a numerical study was conducted on bearing capacity and settlement of annular foundation. PLAXIS software was used for modeling. ...

Number of pages: 153 Category: Civil Engineering

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

Number of pages: 107 Category: Civil Engineering

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

Number of pages: 144 Category: Civil Engineering

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

Number of pages: 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: 174 Category: Civil Engineering

Dissertation for master's degree in civil engineering, structural orientation. Abstract: Today, in earthquake-prone countries, it is recommended to use a variety of energy-depleting tools in order to dissipate the energy of earthquakes on the structure. One of these tools is rotational friction dampers. Because the current regulations do not provide a value for the coefficient ...

Number of pages: 145 Category: Textile Industries

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

Number of pages: 147 Category: Civil Engineering

Dissertation of Master's Degree in Civil Engineering - Structure Abstract In metal structures, one of the most important places of stress concentration is the joint. In form cutting, the shear force at the connection point is so high that a part of the beam or its reinforcement is broken and separated in pieces, and this is due to negligence in the design of the connection or ...

Number of pages: 117 Category: Civil Engineering

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

Number of pages: 285 Category: Management

Industrial Management Doctoral Dissertation, Production and Operations, Abstract: The global automobile industry has grown a lot in recent decades compared to other industries. Every day, the intensity of competition in this industry increases to gain global market share. Iran's automobile industry has also taken effective steps to gain global market share through exports. In ...

Number of pages: 82 Category: Civil Engineering

Dissertation for receiving M.SC Master's degree Major: Water Engineering Abstract: Dams are the largest man-made structures. Their design often stems from their unique nature and the consequence of failure, which is certainly greater than the collapse of other types of structures. The stability of dam body and foundation structures can be analyzed and checked in various ways. ...

Number of pages: 109 Category: Civil Engineering

Master's thesis in the field of civil engineering, structure, first chapter: introduction 1-1. General One of the most important natural events that has always changed people's lives and sometimes destroyed human civilizations by destroying buildings is earthquake. Therefore, humans have always tried to identify and deal with the dangers caused by earthquakes and still have not ...

Number of pages: 117 Category: Civil Engineering

Civil Engineering Master's Thesis, Soil and Foundation Engineering Abstract In this thesis, in order to analyze the behavior of surface foundations based on reinforced soil, a simple physical method based on the resistance of materials called ""cone method"" is used, which is actually used as an alternative to the exact solution methods that are based on the three-dimensional ...

Number of pages: 154 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering - Structural Orientation Abstract: The most basic goal in the seismic design of structures is to prevent the structure from collapsing during severe earthquakes, which is the basis of the governing theory of seismic behavior, the result of investigating the nonlinear behavior of the structure during an earthquake and the ...

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: 108 Category: Civil Engineering

Dissertation of the master's degree in the field: civil engineering - structure, page 1-1-problem definition: In the science of structural engineering, there has always been an attempt to predict a set of events that will have a significant effect on the efficiency and endurance of the structure during its useful life. These factors should be considered by the design engineer ...

Number of pages: 127 Category: Civil Engineering

A master's thesis in the field of civil engineering - hydraulic structures Abstract Liquid storage air tanks are used not only to store water, but also to store chemicals and toxic substances in different forms. Considering the use of these structures in civil and urban development and industrial networks, their importance is determined before and after the earthquake. The ...

Number of pages: 174 Category: Physical Education - Sports

Master's Thesis of Physical Education and Sports Sciences, Sports Physiology, Abstract Doxorubicin (DOX) is an antibiotic with a wide range of anti-tumor and anti-cancer (anti-neoplastic) functions and has been widely used in the treatment of various cancers since the late 60s. Unfortunately, the clinical use of this highly effective anticancer drug has been limited, and this is ...

Number of pages: 86 Category: Medical Sciences

Dissertation for general doctor degree in dentistry Abstract Introduction: One of the common problems after the surgery of the latent third molar tooth is the development of periodontal problems, which manifests itself in the form of a pocket in the distal second molar tooth, loss of connections and lack of adequate bone formation. To solve this problem, various methods such as ...

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: 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: 139 Category: Chemical - Petrochemical Engineering

Master's thesis in the field of polymerization engineering, abstract was determined by using experimental design methods to determine the optimal feed recipe for the preparation of nitrile rubber. Initially, to determine the factors affecting the rate of polymerization, screening tests were designed according to the Plate-Boorman method, which examines a large number of factors ...

Number of pages: 101 Category: Chemical - Petrochemical Engineering

(M.SC) Dissertation to receive a master's degree, specialization: organic, abstract of the thesis (including summary, objectives, implementation methods and obtained results): Computational chemistry using computer software is a powerful tool in the design of molecules with special properties. Computational chemistry is a general and general term that includes a wide range of ...

Number of pages: 139 Category: Chemical - Petrochemical Engineering

Master's Thesis in Polymerization Engineering Abstract In this research, the thermal and catalytic pyrolysis of four types of polymers such as heavy polyethylene and polypropylene and two styrene butadiene rubber and polybutadiene rubber in a semi-continuous stirred reactor under nitrogen gas and using HZSM-5, FCC and H-Mordenite catalysts has been investigated. In this study, ...

Number of pages: 115 Category: Food and Packaging Industries

Master's Thesis in Food Industry (M.Sc) Abstract Walnut kernel is an edible substance that has a lot of fat, protein, sugar and starch, but due to various reasons, it undergoes physical and chemical changes very quickly and loses its quality. The purpose of this study was the effect of packaging and storage conditions on the quality and shelf life of walnuts. In the research ...

Number of pages: 45 Category: Agricultural Engineering

Dissertation for Master's Degree (M.Sc.) Field: Horticultural Sciences, Major: Ornamental Plants Abstract In order to investigate the effect of plant growth regulators and variety on the rooting of gardenia cuttings, a study in the form of a factorial experiment based on a completely randomized design with three plant growth regulating factors including: IBA at 4 levels (0, ...

Number of pages: 106 Category: Agricultural Engineering

Abstract: Salinity stress is one of the most important abiotic stresses in the world, and its negative effects on the growth of agricultural plants have led to an increase in research on salinity tolerance with the aim of improving plant tolerance. In addition to increasing growth, potash fertilizers help to improve product quality and increase plant resistance against adverse ...

Number of pages: 63 Category: Medical Sciences

- Introduction Colorectal cancer is the second leading cause of cancer death after lung cancer in the United States. In 2007, 52,180 new cases of colon cancer and death due to colorectal cancer occurred. Colorectal cancer is the most common gastrointestinal cancer in the United States; The incidence of colorectal cancer in this country has remained unchanged for the past 30 ...

Number of pages: 92 Category: Facilities - Mechanics

Mechanical Engineering Master's Thesis - Applied Design Abstract Today, in various industries such as aerospace, atomic energy, chemical industries, refineries, petrochemical industries, etc., there is a need to use high-pressure mechanisms to enable the completion of relevant processes. The increase in pressure is done inside the cylindrical chambers and as a result, such an ...

Number of pages: 63 Category: Agricultural Engineering

An academic thesis for obtaining a master's degree in the field of agricultural engineering, agriculture, abstract, in order to determine the appropriate planting date and investigate the effect of mulch application on the growth and yield of experimental beans in the form of a randomized complete block design with three replications in the crop year of 2013, was carried out in ...

Number of pages: 67 Category: Agricultural Engineering

Thesis for obtaining a master's degree (M.Sc.) field: agricultural engineering, specialization: agriculture, the effect of planting date and use of mulch on the growth and yield of bean plants in Gilan. Abstract In order to determine the appropriate planting date and investigate the effect of mulch application on the growth and yield of beans, a factorial experiment was ...

Number of pages: 133 Category: Facilities - Mechanics

Dissertation for Master's Degree in Rock Mechanics Abstract The unexpected stress intensity factor of some engineering structures has caused a lot of financial and collateral damage. In investigating the causes of failure, researchers gradually found that the design of many of these structures was correct based on the theory of elasticity and resistance of materials, and the ...

Number of pages: 107 Category: Civil Engineering

Master's thesis in the field of civil engineering, structural orientation Chapter 1: Introduction 1-1. General One of the most important natural events that have always transformed human life and sometimes destroyed human civilizations by destroying buildings is earthquake. Therefore, humans have always tried to identify and deal with the dangers caused by earthquakes and still ...

Number of pages: 83 Category: Facilities - Mechanics

Dissertation for receiving master's degree in mechanical engineering, the trend of manufacturing and production of complex industrial products from metal pipes with the aim of increasing the strength-to-weight ratio of structures and especially reducing the fuel consumption of vehicles has attracted the attention of industrialists in recent years. In this regard, one of the new ...

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: 124 Category: Civil Engineering

Thesis - Master's Degree in Geophysics - Seismology 2012 Abstract Seismic hazard estimation to calculate a certain level of damage and vulnerability in the design of structures is one of the most important topics and principles of earthquake engineering, but

Number of pages: 209 Category: Civil Engineering

Thesis of master's degree in civil engineering, soil and foundation mechanics orientation, September 2019, abstract: analysis of dynamic interaction between soil and structure (due to the mutual effect of the structure and its retaining soil on each other), D

Number of pages: 142 Category: Educational Sciences

Abstract The general purpose of the research is to analyze the content of social studies books for the fourth and fifth grades of elementary school based on metacognitive skills. Descriptive research method and basically a ""research"" Content analysis " is cup

Number of pages: 108 Category: Civil Engineering

Dissertation for master's degree in civil-structural field winter 2012 Abstract In recent years, the number of buildings that have suffered damage due to the loss of their gravity-bearing members has increased. Therefore, it has become important to design structures so that they are resistant to progressive damage in addition to the effects of earthquakes. One of the factors ...

Number of pages: 112 Category: Nutritional Sciences

Dissertation of master's course in the field of educational sciences, history and philosophy of education, winter 93 Abstract: This research aims to analyze the content of moral concepts and themes in the Holy Quran and with the aim of

Number of pages: 224 Category: Tourism - Tourism

Dissertation for receiving master's degree (M.A) in regional planning orientation, winter 2013 Abstract: Today, many researchers pay attention to the role of tourism in economic and social development

Number of pages: 128 Category: Management

Dissertation for obtaining a master's degree in industrial management (production orientation) (case study of universities in Semnan and Golestan provinces) Summer 2011 Abstract: In the world economic system and increasing competition

Number of pages: 104 Category: Agricultural Engineering

Master's Thesis in (Agricultural Economics Engineering) Winter 2013 Abstract: Drought is one of the major problems that Kerman province is facing. And in the last decade, it has gained critical dimensions

Number of pages: 101 Category: Economics

Dissertation of Master's Degree in Economic Sciences October 1392 abstract In economic literature, population, both in terms of level and size and in terms of its growth rate, is one of the most important variables.

Number of pages: 209 Category: Geography - Urban Planning

Dissertation for Master's Degree in Geography and Urban Planning Abstract In this research, the changes in urban land use in Tabriz Region Three Municipality (comparison of new and old detailed plan) have been investigated. The statistical population consists of the municipality of Seh Kalanshahr region of Tabriz. This research is considered to be an applied type of research, ...

Number of pages: 121 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree M. A) Field: Geography and Urban Planning Chapter 1 (Research Plan) 1-1- Introduction The establishment of any urban element in a specific physical-spatial location of the city is subject to specific principles and rules and mechanisms (mechanisms) which, if followed, will lead to the success and functional efficiency of that element ...

Number of pages: 123 Category: Economics

Master's Thesis of Industrial Engineering, Financial Orientation, November 2013. Abstract: Evaluation of the performance of organizations and intra-organizational units is a necessary tool for their continued life and growth. Among various models and techniques.

Number of pages: 107 Category: Industrial Engineering

Dissertation of Master's Degree in Industrial Engineering – Summer Industries 2013 Abstract A supply chain is a collection of suppliers, manufacturers, and distributors.

Number of pages: 107 Category: Industrial Engineering

Dissertation of Master's Degree in Industrial Engineering - Systems Management and Productivity Orientation Fall 2019 Abstract: The growing and rapid movement of today's societies to acquire and exploit information, causes an ever-increasing expansion

Number of pages: 123 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.A) in the field of Geography and Rural Planning Abstract Creating industries is one of the strategies that help the development of villages Industrialization of rural areas as an accelerator to create sustainable employment and is the most effective solution to the problem of rural unemployment The theory of industrialization and the optimal ...

Number of pages: 193 Category: Management

Master's Thesis in Management (Industrial Orientation) Summer 2019 Abstract Data envelopment analysis models have long been used by experts to measure, compare and improve efficiency. with door

Number of pages: 131 Category: Librarianship

Dissertation for Master's degree (M.A.) Major: Accounting. Dissertation abstract (including summary, objectives, implementation methods and results obtained): In this research, the efficiency of stock purchase methods using technical strategies compared to the buy and hold method was investigated. The tested technical strategies are exponential moving average, movement size ...

Number of pages: 185 Category: Industrial Engineering

Dissertation for receiving a master's degree in the field of industrial engineering, Shahrivar's industrial trend. 2013 Abstract: Many economists consider agriculture as the driving force of economic growth.

Number of pages: 91 Category: Social Sciences - Sociology

Dissertation for Master's Degree (M.A.) Department of Social Sciences, Orientation: Researcher Abstract: The present meta-analysis is an attempt to re-analyze a set of these pathological researches in the field of factors affecting group conflict, in the present research for the meta-analysis of the research conducted, first the effect size was determined according to the ...