Download more than 100 examples of thesis, proposal and project topics about phase change in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
Master's Thesis in Mechanical Engineering, Energy Conversion, Abstract: Thermal energy storage and phase change materials for use in heating and cooling systems of buildings has become an important issue in the last 20 years. When there is a mismatch between energy production and its consumption time, the issue of energy storage becomes important. In the present work, the fluid ...
Master's Thesis on Energy Conversion Abstract: Increasing heat transfer as well as increasing the efficiency of energy storage systems due to the limitation of natural resources and with the aim of reducing costs has always been one of the most basic concerns of engineers and researchers. This is especially important in fluids due to the small thermal conductivity coefficient. ...
Dissertation for Master's Degree in Industrial Management, Financial Orientation Abstract After the Islamic Revolution and 8 years of holy defense, the economic situation was such that the government decided to pay subsidies to energy carriers in order to help the vulnerable and grow. In the following years, due to the sufficient economic growth and strengthening of the ...
Dissertation for obtaining a master's degree in the field of business management, financial orientation. Abstract: The main purpose of this research is to investigate the relationship between each of Garvin's comprehensive quality management principles on the financial performance of companies admitted to the Tehran Stock Exchange. This research is a descriptive survey research. ...
Dissertation of the master's course in electrical field (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are examined and the factors that cause them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, i.e. the ...
A master's thesis in the field of physiology, abstract comparing the effect of two different methods of protecting the myocardium during coronary artery bypass surgery by evaluating enzyme changes. In the present study, two different methods of protecting the myocardium during coronary artery bypass surgery, by evaluating the changes of enzymes affecting oxidative stress, ...
Abstract: This thesis proposes a new control strategy to control single-phase distributed generation system DG [1] connected to the grid based on Lyapunov stability theory. The main idea in this strategy is that a Lyapunov function similar to energy is defined by considering different states of the distributed generation system and then the control law that makes the time ...
Dissertation for Master's Degree in Nursing Education (Community Health Orientation) Abstract Introduction: Physical activity is one of the most important components of a healthy lifestyle and identifying various psychosocial variables affecting physical activity is of particular importance. Objective: This study was conducted with the aim of determining the amount of physical ...
Dissertation for receiving a Master's degree (M.Sc) major: applied chemistry Persian Summary Raloxifene is used to treat breast cancer and infertility related to oligomenorrhea or secondary amenorrhea. Raloxifene is a new treatment that has recently become available for the prevention of osteoporosis of the spine. This medicine is taken as one pill a day. In some ways, this drug ...
Dissertation to obtain a doctorate degree in general dentistry. Findings: The vertical changes of the soft tissue in all the measured points were lower in the test group compared to the control group, and this difference was not significant only in the midbuccal region, but it is significant in other places. The horizontal dimensional changes of the soft tissue were also less at ...
Abstract Common-mode voltages and currents are generated due to the creation of parasitic capacitance between solar cells and their frame, which is usually grounded. These capacities are usually modeled as capacitors between the negative terminal of the solar cell and ground. In solar cells that are connected to the grid through a transformer, the electrical insulation of the ...
Dissertation to receive a master's degree (((M.sc) specialization: medical nanotechnology) Abstract In the present research, the cation exchange property of clinoptilolite is used due to its negative charge in its structure. The connection of this research topic with medical nanotechnology is due to the nanopores and porosity of clinoptilolite and the high absorption level of ...
Introduction Flexible Power Transmission Networks (FACTS[1]), is one of the aspects of the electronic revolution that is happening in all fields of electrical energy. The concept of FACTS was first proposed in 1988 by Hingorani. In addition to the advantages of fast and reliable switching, the range of semiconductor power devices provides opportunities to value electrical energy ...
Dissertation for receiving a master's degree in the field of electrical power, power systems trend. Abstract: Reactive power compensation has always been one of the important research topics in most universities and research centers. Meanwhile, the new generation of compensators (FACTS) has been the focus of the power industry and research centers in order to control reactive ...
Dissertation of the Master's course in the field of electricity (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are first examined and the factors causing them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, ...
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 ...
Master's Thesis, Energy Conversion Engineering, Abstract: In many processes in the industry, the combination of liquid droplets with gas flow will lead to problems such as corrosion of downstream equipment and loss of expensive liquids. To solve these problems, the phases are separated from each other with the help of a separator. Cyclone separators, as a type of high efficiency ...
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.
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
Chapter 1 1-1-Introduction: Common fluids such as water, oils and ethylene glycol, which are usually used as heat transfer media, have a limited ability in terms of thermal properties, which is the first obstacle to compress and increase the efficiency of heat exchangers. One of the ways to improve heat transfer is to add particles to the fluid. This method is used for fluids ...
The first chapter of research overview Introduction: In a world that is rapidly increasing urbanization, the role of cities as a means of economic growth is more important. This issue has made the need to use informed decisions and adopt new approaches in urban development planning inevitable in less developed countries that are facing an unprecedented increase in the rate of ...
Dissertation for receiving the master's degree ""MA"" Field of industrial engineering: industries – Winter Industries 2013 Abstract Today attention is paid to the issue of supply chain and its management, in Asr
To receive a Ph.D. in the field of General Psychology Abstract Objective: This research was conducted with the aim of comparing the effectiveness and continuity of the effect of schema therapy and metacognitive therapy in a group manner on reducing symptoms, social health and quality of life of students with social anxiety disorder. Method: The current study was ...
Master's thesis in the field of technology management, technology transfer trend, first chapter, generalities of the research 1-1) statement of the problem: commercialization[1] is an important category both in theory and in practice. The competition crisis of the 70s and 80s in the United States was not the crisis of creating new scientific and technological ideas, but the ...
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 in Psychology (M.A) Major: Clinical Abstract Considering that addiction is one of the most common psychiatric disorders, ""Cognitive Therapy"" is a tool that therapists use to control and treat addiction by influencing thoughts and beliefs. For this purpose, the present study was conducted with the aim of investigating the effectiveness of ...
Master's thesis in information technology management, comprehensive quality trend, first chapter, introduction, the emergence of the global village, which has been in existence for several decades, has brought about tremendous changes in matters related to the management and organization of organizations, which unfortunately, not only did our country not contribute to its ...
Dissertation for Master's Degree (M.A.) Field: Geography and Rural Planning Abstract Rural growth and development is closely related to the participation of villagers, because participation actually increases the efficiency of economic, social and cultural programs and the quality of decision-making for rural areas. The weak participation of the people in the rural society ...
Dissertation for Master's Degree in General Psychology Abstract: The purpose of this research was to compare cognitive emotion regulation strategies, attachment styles, self-expression and locus of control in runaway and normal girls. The research method in this study was causal-comparative. The subjects included 36 girls (18 runaway girls and 18 normal girls). The group of ...
Dissertation for Master's Degree (M.A) in Business Administration, Administrative Transformation, Abstract Nowadays, in addition to research and education, universities play a role in the new mission of participation in the economic development of society. In the current research, an attempt has been made to explain the process of commercialization and the results of university ...
Dissertation for M.Sc Master's Degree in Remote Sensing and Geographical Information System - Water and Soil Resources Abstract One of the important issues in crisis management of unexpected natural events, especially earthquakes, is optimal location in order to accommodate citizens during or after an accident. One of the major problems of the organizations involved in urban ...
Master's Thesis in Accounting Abstract: The strength and credibility of financial and credit institutions is the money that depositors have deposited in them, and the progress and survival of each of the mentioned institutions depends on the share of the total market resources, and increasing the share of the market resources requires continuous effort and a strong, ...
Dissertation for the master's degree of the Faculty of Management Abstract Since the application of accrual accounting has an important contribution in improving the level of accountability and achieving the goals of financial reporting, therefore, in this research, the obstacles to the establishment of this accounting system and providing the necessary solutions to remove the ...
Dissertation for Master's Degree (M.A) in the field of Geography and Urban Planning Abstract: The increase in the population of cities and how to settle them is one of the problems of today's cities, and due to the need to preserve agricultural and natural lands as well as reduce urban costs, the issue of the optimal distribution of population density is of particular ...
Master's Dissertation in the field of Psychology (M.A.) Major: Education Abstract: The purpose of this research was to determine the effectiveness of teaching coping skills and stress management on increasing the academic performance of Islamic Azad University nursing students. For this purpose, 32 nursing students were randomly selected and placed in two experimental and ...
Evaluating the readiness to use an enterprise solution (ERP) based on critical success factors (case study: Iran Khodro Diesel Company) Abstract The enterprise resource planning system is a software package with a wide application that integrates all the functions of the organization in a single system. In order to successfully implement an ERP[i] project in the organization, it ...
Dissertation for receiving a master's degree in the field: political geography. Abstract: The development of communication in the form of virtual space communication, the possibility of information exchange, access and access of people and devices to each other through the Internet at the same time, has created a new paradigm in human life, which is considered as an advantage ...
Dissertation for Master's Degree in Electrical Engineering (M.Sc) Abstract The power system stabilizer is added to the excitation system in order to improve the damping of the power system during low frequency disturbances. For large-scale power systems that include a large number of connected generators, setting the power system stabilizer parameters will be a complex and ...
Dissertation for Master's Degree (M.A.) Direction: Remote Sensing and Urban and Rural Geographical Information System Abstract: Subsidence phenomenon is one of the natural disasters that causes the reduction of underground resources such as underground water, oil, etc. One of the most important causes of land subsidence is the drop in static level and increase in effective ...
Master's Thesis of Executive Management (M.A) Strategic Orientation Abstract The purpose of this research is to investigate the effect of knowledge management on the performance of employees of the scientific-applied training center in Miandoab city. For this purpose, knowledge management based on the theory of Nonaka and Takeuchi in four dimensions; Socialization of ...
Dissertation for receiving a master's degree in computer engineering, software orientation. The abstract of many software development costs, related to frequent tests, is in the phase of software maintenance, evolution and modification; Because making any change in the software code results in a new version, the correctness of which requires the design of new tests as well as ...
Master's Thesis Abstract The purpose of this research is to develop a strategic business plan for Behdeh tourism in order to provide an effective model. The research method is descriptive and relevant information and data have been collected using observation tools, document review, library sources and questionnaires. The statistical population of this research includes all ...
Dissertation for M.Sc degree, direction: relationship between man, machine, computer. Abstract: Today, with the rapid changes in technology, the level of security of individuals and organizations has also decreased, and this security has been invaded by profiteers and vandals. In the meantime, the increasing progress of biometric methods has made tremendous achievements in the ...
Thesis for obtaining a master's degree in the field: computer, software, abstract. In a sensor network, which is a pervasive distributed system, communication synchronization is one of the discussed cases. One of the main tasks of synchronizing processes is mutual exclusivity. The new algorithms provided are more fair compared to the old algorithms. In this thesis, we present a ...
Dissertation to receive a master's degree in electrical engineering, power trend. Abstract: Flexible power transmission systems, which are known as FACTS[1] compensators, are modern tools that have been used in power systems to strengthen the controllability and develop the transmission capacity of power networks based on power electronic converters during the last decade. In ...
Dissertation for Master's Degree in Power Direction Abstract Transmission lines protected by distance relays have limitations in the presence of series compensation. When the fault loop includes a series capacitor, the impedance seen by the distance relay is reduced. The level of compensation at any moment depends on the number of capacitors connected at that time. Therefore, ...
Master's Thesis in Information Technology Engineering, Computer Networks, Abstract Location and synchronization are key elements in many underwater communication applications, which, despite being highly interdependent, usually operate separately from each other. But since the synchronization services are the prerequisite of the positioning algorithms and the information about ...
Master's Thesis in Computer Engineering (Software) First Chapter Preface 1-1- Introduction Some authors define data mining as a tool to search for useful information in a large amount of data. To perform the data mining process, we encounter various research fields, such as database, machine learning and statistics. Databases are essential for analyzing large amounts of data. ...
Dissertation in master's degree in motion picture directing Abstract This research is an attempt to find answers to questions related to the effect of watching cartoons encouraging drawing on the drawings of preschool children and whether the production and distribution of such programs have been done to the required extent or not. The point that has been taken into ...
Dissertation for Master's Degree (M.Sc Computer Engineering (Software Orientation) Abstract With the developments in networks and communication technologies, wireless networks are used more. Among them, we can refer to ad hoc networks. Due to the many applications of these networks, the need for security is very important for their proper functioning. One of the problems that ...
Master's Thesis in Electrical Engineering (M.Sc) Major: Electronics Abstract: The increase in demand for portable systems has led the electronics industry to pay special attention to power consumption as an important criterion. Adders are important elements in many digital systems. For this reason, various digital collectors have been proposed in the current era, each of which ...
Academic Thesis for Master's Degree in Industrial Design Abstract Today, vandalism is observed in all societies. One of the examples of vandalism is writing memorials on historical and cultural monuments. The purpose of this research was to design urban furniture in order to prevent memorial writing on the wall of the theater in Tehran as a cultural monument. In other words, the ...
Master's Thesis of MBA, Financial Orientation Abstract: The progress of insurance is parallel with the economic development of the country. The development of insurance helps to improve the living conditions of the people of the country and preserve the national wealth and create large savings. When the economy of a country does not rely on insurance and its provision, the ...
Master of Business Administration Abstract The future of the world in the 21st century is full of competition, the development of emerging markets, uncertain environmental factors, the spread of superior technologies and the expansion of business. The condition for success in this field is to take advantage of the strengths and opportunities and face the weaknesses and ...
Dissertation for receiving a master's degree in the field: executive management, direction: strategic. Abstract: The purpose of this research is to investigate the possibility of using a balanced scorecard to implement its strategies in Saipa Automobile Company. Balanced scorecard is one of the performance evaluation techniques of organizations that evaluates the organization ...
Dissertation for Master's degree (M.A.) field and orientation: public administration-organizations and methods. Abstract Considering the depth and breadth of the system's cultural principles and goals, cultural affairs centers should have high decision-making power in order to realize these goals. Making a decision according to logical and principled bases is an important part ...
Department of Business Management - Policy Direction of Doctoral Dissertation Abstract of the studies conducted on strategies related to performance evaluation, shows that there is no comprehensive model of performance evaluation for regulatory organizations in Iran. The main purpose of this research is to design a pattern of performance evaluation strategies for the regulatory ...
Master's Thesis in Computer Engineering-Software Abstract Continuous improvement of processes is one of the goals that all industries are looking for today. In this regard, the Integrated Maturity/Capability Model (CMMI) has been proposed at the international level for more than two decades by providing an effective framework. Configuration management (CM) is one of the ...
Dissertation for Master's Degree in Civil Engineering Majoring in Environmental Engineering Abstract In this research, the effect of biological reactions on the removal of organic substances in wastewater during transfer from production sources to the treatment plant in conventional networks and new small diameter networks was investigated. For this purpose, a part of these ...
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 of Structures Abstract In the welding process, after a stage of cooling of the body, due to the uneven distribution of temperature, stresses remain in it, which are called residual stresses. To obtain these stresses, the temperature history of the object during the welding process must be available. For this purpose, first a thermal analysis is done to obtain the ...
Dissertation for Master's Degree in Business Administration-Marketing Abstract Successful implementation and implementation of customer relationship management requires the correct design and formulation of goals and strategies with structure, culture (or human resources) and organizational technology. Although there has been a lot of research on the reasons for the failure of ...
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 ...
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 ...
Dissertation for Master's Degree in Civil Engineering - Abstract Hydraulic structures in high dams of spillways, as one of the dependent hydraulic structures, have the important role of discharging the incoming floods into the dam reservoir with sufficient safety in free flow or under pressure downstream. In tunnel overflows where the flow is at a high speed and often under ...
Dissertation of the master's degree in the field: Electrical Engineering - Power trend. Abstract Today, despite the wide use of sensitive loads such as power electronics, computers and non-linear loads in distribution networks, the issue of power quality has received more attention. Most of these loads are sensitive to voltage changes, such as undervoltage and overvoltage, and ...
Master thesis M.Sc. Discipline: Civil Engineering, Orientation: Hydraulic Structures. Abstract River containment is generally done by dams and similar structures. The flow passing through these structures has a significant potential for erosion and scouring of susceptible beds. Relaxation ponds are designed and built mainly for the purpose of depleting flow energy and ...
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 ...
Master's Thesis Abstract One of the issues that makes speech catchy and makes it solid and elegant is the proper use of rhetorical figures. A knowledgeable theologian, by mastering the prevailing environmental conditions and using different forms and diversity in speech, tries to express his words in a way that has the greatest effect on the audience. Among the issues that are ...
Dissertation for Master's Degree in Mechatronics Abstract In this thesis, a phase-locked loop is designed based on micro-electromechanical systems. The loop system has a feedback phase lock that compares the input phase with the output phase. This comparison is done by a phase detector. Phase detector is a circuit whose average output voltage is linearly proportional to the ...
Dissertation for receiving a master's degree in the field of: Power Electricity, the increase in the presence of non-linear power electronic loads in distribution networks, on the one hand, and the ongoing changes in distribution networks, such as the presence of scattered production sources and the possibility of forming power microgrids [1], have increased the need for new ...
Dissertation for Master's Degree in Physical Education, Movement Behavior, Abstract The purpose of this research was to investigate the effects of general and specific video self-control feedback on the performance and learning of the fixed basketball shot in 15-17-year-old boys. The research method was semi-experimental. The research sample included 56 students aged 15-17 from ...
Dissertation for master's degree in civil engineering, structural orientation. Abstract Good bond strength between the old and new concrete surface is a key factor in the performance of concrete repairs. The purpose of this thesis is to investigate and evaluate the bond strength between the surface of the old concrete and the added concrete. In this thesis, a laboratory research ...
Master's degree thesis in the field of electrical engineering, power orientation. Abstract Today, the discussion of system control and monitoring is one of the most important discussions in the power network, and we need to know the exact state of the power network in order to design control devices. By knowing the state of the network at any moment, you can be aware of changes ...
Master's Thesis in Electrical Engineering - Telecommunication System Abstract VOR navigation system is a radio navigation system that has tactical and non-tactical applications and is made in two types CVOR and DVOR. This system is widely used in military and civilian air services in most countries of the world by determining the position (direction) of the flying vehicle in ...
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 ...
Electrical-Electronics Engineering Master's Thesis Abstract In this thesis, we have used graphene nano-ribbons as an active layer of a solar cell for the first time. To simulate this cell, the non-equilibrium Green's function method was used in the mode space, and the effect of electron-photon interactions was calculated by means of Born's self-consistent approximation. To ...
Dissertation for Master's degree (M.A) Major: Exercise Physiology Abstract Considering the lack of research on the effect of various types of resistance training on urinary protein excretion, the purpose of this study was to compare the acute and chronic effects of two types of continuous and intermittent resistance training on resting proteinuria and in response to exercise in ...
Dissertation for Master's degree (M.A) specialization: exercise physiology (Banfi et al., 1993, Ververn et al., 1991). Therefore, increasing exercises, especially if their intensity and duration are high, may cause overtraining and performance drop and bring negative physical and psychological consequences. Among the biochemical indicators for evaluating overtraining status in ...