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Dissertation for Master's Degree in Applied Design Mechanics Abstract: Composites have received a lot of attention in recent decades due to their high strength and low weight. Such materials can fail due to static, impact, dynamic loading, etc., and the various failures that occur can cause a severe drop in strength in the structure. Engineers always think of using different ...

Master's Thesis on Car Structure and Body Abstract In recent years, many researchers have allocated their attention to a special category of materials, memory materials. The ability to absorb and control vibrations actively or passively, respectively, is affected by the features of shape memory and hysteresis energy loss caused by the pseudo-elastic characteristics of these ...

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 ...

Master's Thesis of Polymer Science and Technology Engineering Abstract Urethane-acrylate resins are of interest due to their low viscosity and flame retardant properties and relatively easy curing. On the other hand, natural fibers with renewable resources, low price, low density and high special properties have a special ability to be used in composites. However, their ...

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 ...

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

Master's Thesis in Mechanical Engineering-Applied Design Abstract In this thesis, classical sheet theories, first-order shear deformation theory and refined two-variable theory for the free vibration problem are investigated using standard finite element and hierarchical finite element methods. The refined two-variable theory is an equivalent single-layer theory, in which two ...

Dissertation for obtaining a master's degree in civil engineering, structural orientation, March 2013, abstract of the scope of using FRP materials for shear strengthening of reinforced concrete beams in

Dissertation of master's degree in civil engineering, structural orientation, October 1390, first chapter of generalities. 1-1 Introduction In recent years, there have been many advances in the field

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

Master's thesis in the field of civil engineering, structural orientation. Abstract In this study, the evaluation and comparison of nonlinear and numerical analysis of deep reinforced concrete beams with openings without reinforcement with deep concrete beams with openings reinforced with FRP sheets and deep reinforced concrete beams without openings by Abaqus finite element ...

Dissertation for Master's Degree Abstract: Dealing with external forces such as earthquakes is one of the most important missions of civil engineers. In order to achieve this goal, the light metal frame system, which has advantages such as the possibility of industrial production, prefabrication and lightness, can be considered as a suitable alternative to traditional systems. ...

Master's thesis in the field of civil engineering, structure orientation Alkaline Aggregate Reaction [1] (AAR), is a chemical reaction that occurs in some concrete structures. (AAR) is a reaction between alkaline fluids in the pores and silica aggregates. Concrete failure, including expansion and cracking due to the alkaline reaction of aggregates, is of particular importance. ...

Dissertation for receiving a master's degree in the field of civil engineering, structure orientation. Abstract: Today, many reinforced concrete structures that are in operation are more than 75 years old and have been damaged due to natural disasters such as earthquakes and wind, or due to material fatigue or corrosive factors. Maintenance of structures is very important due to ...

Dissertation for receiving a master's degree in the field of Civil Engineering (M.Sc) Major: Structure Abstract: The retrofitting of important government buildings, infrastructure facilities and vital arteries due to the increase in terrorist attacks around the world and the possibility of bombings near buildings and urban places is one of the most important discussions in the ...

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 ...

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

Master's Thesis of Mechanical Engineering-Applied Design Abstract In many applications, graphene (monolayer or multilayer) is used in the polymer matrix as a composite. In this research, ideal graphene with a hexagonal bond shape between atoms, located in a polymer matrix, with different boundary conditions, including gripped and simple, under biaxial external compressive ...

Master's Thesis in Mechanical Engineering (Applied Design) Introduction The question of the generating factor has always been raised as a dynamic question in all fields of science. Due to the complexity and unforeseen factors and the lack of all-round human mastery over physical issues, it has not been possible to identify the causative factor in many cases, therefore, due to ...

Master's Degree Thesis Abstract With the advancement of technology, the need to use new materials is felt. New methods have been developed to make new materials. Among the new materials in progress, we can mention double-layer sheets. These materials have composite properties of composite materials. The purpose of this research is to produce a double-layer sheet of 304L ...

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 ...

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.

Master's Thesis (M.Sc.) Direction: Process Design Abstract Currently, membranes have found a special place in different separation industries and have wide applications in different fields of separation, including liquid solutions and different gases. Membrane technology is one of the most widely used technologies in today's industry, whose field of application is wide ranging ...

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 ...

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

Dissertation for obtaining a doctorate degree in dentistry. Introduction Removing large amounts of dental tissue weakens the restored tooth. The type of restoration and composite method can be one of the influencing factors on tooth fracture resistance under occlusal forces. The purpose of this study was to investigate the effect of using new low-shrinkage composites on the ...

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 ...

Master's degree thesis, field: Chemical Engineering Abstract: In this research, the absorption of methyl orange dye, which is one of the most widely used dyes in the textile industry, by polypyrrole adsorbent based on polyvinyl alcohol has been investigated. The tests were performed in a discontinuous system using a colored solution with a concentration of 40 ppm. After ...

Dissertation for Doctorate Degree in Dentistry Abstract The purpose of this study was to compare the microleakage of adhesive total etch and self etch using three methods of Fluid filtration, dye penetration and dye extraction, as well as to determine the statistical relationship between these three methods. Materials and methods In this laboratory study, 72 extracted human ...

Master's Thesis of Polymer Industry Engineering Abstract With the progress of human civilization, technology development and the ever-increasing population, the world is currently facing a problem called pollution that threatens the lives of the inhabitants of the earth. Pollution caused by the accumulation of persistent toxic compounds in soil and water, such as chemicals, ...

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

Dissertation for Master's Degree in Food Science and Engineering, Food Microbiology, Abstract: Today, the increase in environmental pollution and the decrease in oil resources have led to the development and replacement of biodegradable packaging instead of packaging derived from petroleum resources. Also, in this regard, the use of antimicrobial compounds such as silver ...

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

Dissertation for M.Sc Master's Degree, Mechanical Engineering - Applied Design Abstract Modern wind turbines today tend to vibrate a lot due to their elastic, long and narrow structure. Therefore, all components of wind turbines should be subjected to vibration and modal analysis in the design stages, and their natural frequencies should be reviewed with turbine excitation ...

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 ...

Master's Thesis in Mechanical Engineering (Applied Design): Abstract of the analysis of leading damage in pin connections of composite materials. The purpose of this research is to analyze the leading damage in pin connections of composite materials. To do this, finite element software ABAQUS and FORTRAN programming have been used. The contact between the composite plate with ...

Master's thesis in the field of mechanical engineering (applied design trend) Abstract of the study of the deterioration of non-isotropic TWB sheets under the hydroforming process. During the research, four different metals of aluminum alloys 6111-T4, 5083-H18, 5083-O and dual-phase steel DP590 and two spherical tensile tests and simple uniaxial tensile tests were used. Then we ...

Master's Thesis in Mechanical Engineering (Applied Design) Abstract of three-dimensional interlayer stress investigation in mechanical connections in layered composite materials The purpose of this thesis is to investigate three-dimensional interlayer stresses in mechanical connections in layered composite materials. For this purpose, finite element method and ABAQUS software ...

Dissertation for Master's Degree in Mechanical Engineering, Manufacturing and Production, Abstract: The process of laser forming, especially in recent years, has been widely noticed. In this process, shaping is done by irradiating the laser beam on the surface of the sheet, which is accompanied by a rapid local heating and subsequent cooling of the heated area. However, the way ...

Thesis - Master's Degree in Geophysics - Winter Seismology 2012 Abstract In this research, the effect of a branch fault in a subduction zone on tsunami waves using numerical modeling of tsunami waves.

Summer 1390 Expertise Master of the field: Civil Engineering Orientation: Structure Abstract: In this thesis, the effect of nanosilica on the mechanical properties and durability of concrete containing polypropylene fibers

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

Dissertation for receiving a master's degree in the field of architecture, Mehr 2013 Abstract: One of our needs today is to have a space to get acquainted with new architectural technologies in the world

Master's Thesis in Accounting (M.A) Abstract We are all familiar with the meaning and concept of cheating, although cheating can be generalized to many examples, but we mean cheating in academic exams. Cheating is a dishonest behavior, it is a way other than the honorable way and reaching reality and truth, it is other than the legitimate way and showing oneself with an upside ...

Master's Thesis M.Sc. Industrial Engineering Industries-Industries trend of academic year 1389-1392 Abstract: With increasing government supervision and the increasing attention of public opinion to environmental issues, companies

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

Dissertation for receiving a master's degree in the field of accounting, accounting orientation. The independent auditor's reliance on internal audit saves money and provides more services to the employer with the same cost. Optimum use of the work of internal auditors can improve the efficiency and effectiveness of the independent auditor and increase the value of the internal ...

Thesis of Master's Degree in Economics, Economic Sciences, November 2019 Abstract: In countries that experience high inflation rates for a long time and the general level of prices increases dramatically.

Master's Thesis in Economic Sciences December 2013 Abstract Globalization means the rapid increase in the volume of international exchanges of goods, services and assets.

Master's Thesis in Geography and Tourism Industry Abstract The topic of tourism and the tourism industry in the contemporary world, especially in developed countries, has grown very significantly in line with other industries and economic sectors. Today, many countries in the world have understood the wide dimensions of the tourism industry in terms of production, employment and ...

Dissertation for Master's Degree (M.A.) Direction: Accounting Abstract Today, with the increasing acceleration of changes in the internal and external factors of organizations, the need to increase flexibility against changes is absolutely necessary, so the purpose of this research is to investigate the relationship between financial flexibility and cash policies with an ...

Dissertation for receiving the master's degree ""M.A."" Abstract In the last two decades, we have moved towards an economy where investment in human resources, information technology, research, development and advertising seems necessary in order to maintain competitive advantage and environmental guarantee of organizations. Therefore, it can be said that the source of creating ...

Dissertation for Master's Degree in General Psychology Abstract The aim of this research was to ""investigate the relationship between religious attitude, self-concept and social support with job satisfaction"". The statistical population of this research is 303 women employees of Azad, National and Payam Noor Universities in Kerman, who work in the administrative department. ...

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

Dissertation for M.Sc degree in natural geography-geomorphology in environmental planning. Abstract The city expands in the geographical environment not based on capacity and facilities but on the basis of urgency and necessity. This issue is very noticeable in today's cities. It is noteworthy that the city must be in harmony with its natural location and it is essential that ...

Academic Thesis for Master's degree in the field: Public Administration, Human Resources, Abstract The purpose of this research is to investigate the effect of team atmosphere and leadership empowerment on knowledge sharing behavior among employees of educational groups in Rasht district. Therefore, it is practical in terms of purpose, and in terms of the method of data ...

The thesis for receiving a master's degree (M.A) in the field of accounting, the abstract quality of profit from various aspects including (having predictive value, feedback value, neutrality, timeliness and honest expression) has been evaluated and considered by researchers. The purpose of this research is to examine the relationship between some corporate governance mechanisms ...

Dissertation for master's degree in natural geography majoring in climatology in environmental planning Abstract One of the diseases of this century that unfortunately young people especially girls and young women are suffering from is the disease (MS), the cause of which is still unknown according to the expert doctors of the world and unfortunately they state various theories ...

To receive a master's degree in textile technology engineering. Abstract In the previous research, multi-sized nano-roughness was developed using nanoparticles with different sizes and different surface charges along with silicone resin coating to produce multi-purpose textiles with stable properties. In this research, the idea of ??using laser irradiation and finishing textiles ...

Dissertation for Master's Degree in Information Technology Engineering - Computer Networks Major Abstract Wireless surveillance networks are an important branch of wireless multimedia sensor networks with some unique features. The quality of service in wireless surveillance networks is closely related to the packet loss rate. Occurrence of congestion is one of the main and most ...

Dissertation for Master's Degree in Computer Engineering - Artificial Intelligence Abstract Considering the rapid growth of complexity and size of simulation systems, designing efficient structures for evaluation and validation is an important issue. Today, Petri net is used for validation and verification. Petri nets are used to model systems of discrete events that may occur ...

Abstract Glass making is one of the ancient arts of Iran, and the production of glass works is considered a significant part of the handicrafts of our country. The production of art glass in Iran has been based on its most original method, i.e., foot glass making, as well as some other methods, such as glass fusion, glass melting, etc. Unfortunately, in the past few years, glass ...

Thesis for obtaining a master's degree in the field: business management, specialization: financial management. Abstract One of the concerns of managers of organizations is their awareness of the performance of the systems under their management. The main goal of this research is to find the efficiency values ??of each of the cooperative companies in Rasht city and to identify ...

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 ...

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

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

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

Dissertation for receiving a master's degree in civil engineering, soil mechanics, and the abstract of the contents, one of the most important and at the same time the most difficult topics in soil mechanics is the problem of the stability of gables. Analyzing the stability of soil slopes in order to determine the most probable rupture process or in other words to find the ...

Master's Dissertation of Discontinuous Structure Abstract: In recent years, the use of composite material in the construction and strengthening of structures has expanded greatly. The structure of this material is such that there is a possibility of crack formation between the layers. Due to the increase in load, these cracks grow and cause a sharp drop in the strength and ...

Dissertation for Master's Degree in Civil-Structural Engineering Abstract In our country, most of the structures and maybe all the conventional buildings are analyzed and designed independently, which means that these structures are mainly analyzed and designed by conventional software and considering a rigid or articulated support, and then the forces obtained at the base of ...

Master's thesis in the field of structural engineering. Abstract: The increase in vulnerability caused by earthquakes and the large number of earthquake casualties caused by structures and houses that are weak in terms of construction forces people to conduct studies to reduce these risks and damages. Studies such as severe earth movement and seismic hazards related to it play ...

Dissertation for M.A. Abstract ""Fire in Sana'i Poems"" Alireza Gilani Sana'i is one of the prominent poets whose works are worthy of attention in terms of quantity and quality. Among the works of this unique speaker, his divan and garden has special subtleties and subtleties, which has a special and stable position in terms of literature, thought, language and variety of ...

Dissertation for the Master's Degree (M.A) in Business Management International Orientation Abstract Strategic flexibility and the effects this has on export performance are of particular importance. Researchers believe that strategic flexibility can potentially improve performance and increase profitability. The main question of this research: ""What effect does strategic ...

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

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

Master's Thesis in Civil-Structural Engineering Today, domes and arches have found wide applications in architectural and industrial structures due to their suitable coverage of large openings. The use of today's technologies in styling and optimizing energy consumption in these types of structures is one of the important challenges facing engineers. Therefore, the need to ...

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 ...

Executive Management Master's Thesis Abstract: Over the past few decades, the quality of electronic services has attracted the attention of many researchers due to its strong impact on business performance, customer satisfaction, and customer loyalty. Service quality is considered as a criterion in evaluating the degree of coordination of the level of service provided with the ...

Thesis for obtaining a master's degree (M.A) (Field: Business Management, Major: Domestic Business) Abstract: In today's ultra-competitive world, the secret of survival and success of organizations is to understand the competitive structure of the market. Achieving this understanding requires management's knowledge and understanding of customer's opinions and demands, and ...

Dissertation for Master's Degree (M.A.) Major: Persian Language and Literature Abstract Children's and adolescent literature refers to works that, both in terms of content and structure, as well as in terms of language and expression, are appropriate to the needs, interests, and abilities of understanding and reading of children and adolescents. Mehdi Azarizdi is one of the ...