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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 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 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 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 ...

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 ...

Presented to graduate education management as a part of the educational activities required to obtain a master's degree, the dimensions of MEMS components according to Figure (1-2) include a wide range, from dimensions smaller than one micrometer that are not visible to the eye to dimensions of one millimeter, also types of these systems can be in a simple state, a tool without ...

Dissertation for Master's Degree in Electrical Engineering (M.Sc) Major: Power System Abstract 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, adjusting the power system stabilizer parameters will be a complex and ...

Master's degree thesis report in the field of electrical engineering, power trend, 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 ...

The thesis submitted to graduate education management as part of the educational activities required to obtain a master's degree in the field of 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 ...

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

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

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 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.

Dissertation or thesis for obtaining a master's degree in the field of industrial engineering with a focus on social-economic systems in September. 2013 Summary of unexpected incidents and medical disasters

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 Farsi Abstract: Today, with the expansion of DC consumers and non-linear loads connected to the network, the design and construction of power factor correction circuits using electronic power converters has gained special importance. With the advancement of technology, integrated circuits have come to help in this field. Due to the complexity and non-linear ...

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 ...

Dissertation for M.sc degree, field: electricity, orientation: power electronics. Abstract Voltage stability is related to the power system's ability to maintain acceptable voltages in all system buses under normal conditions and after disturbance. The system enters an unstable state when a disturbance, an increase in the required load or a change in the system's position causes ...

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 ...

Dissertation for receiving a master's degree, field of study: electricity-power, orientation: electric machines in a synchronous generator, a dc current is applied to the rotor coil to produce a magnetic field. Then the rotor of the generator is rotated by a prime mover to create a rotating magnetic field in the machine. This magnetic field induces a three-phase voltage 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 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, ...

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

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 of Faculty of Technology and Engineering, Computer Department Abstract: The issue of concurrency control in databases is a necessary and important issue. Asynchronous execution of transactions in a database management system may lead to inconsistencies. Inconsistency is caused by incorrect values ??for existing data, due to conflict and interference of ...

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 ...

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 ...

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 ...

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 ...

Dissertation for receiving the master's degree ""MSc"" specialization: applied chemistry Farsi abstract of the thesis or dissertation (including: summary of objectives, implementation methods and results obtained in maximum 10 lines): The possibility of manipulating matter at the nano level was first proposed in written form by Richard Feynman. During his conference called ...

Master's thesis in the field of chemical engineering, abstract of the design of the Driso ring base and the use of hydrocarbon solvent in the dehumidification process in Farashband refinery, water vapor is one of the most important impurities in the flow of natural gas. Usually, the water vapor itself is not a problem, but instead the liquid or solid phase that forms when the ...

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 ...

Dissertation for Master's Degree (M.Sc.) Field: Gas Processing and Transmission Engineering Abstract: Today, one of the problems in gas transmission lines is the gas hydrate phenomenon, which is a combination of light gases such as methane, ethane or carbon dioxide with water molecules under certain temperature and pressure conditions to form an ice-like substance that contains ...

Master's Thesis in Telecommunication Electrical Engineering- LFSR-based scrambler parameter blind detection system in digital data In digital telecommunication systems, linear scramblers are used both for simple encryption and for breaking a large sequence of identical bits. The bit sequence issue, i.e. a large number of 0's and 1's in a row, usually leads to synchronization ...

Dissertation for Ph.D. Persian Abstract Opioid system can interfere with various neurotransmitters such as dopaminergic, serotonergic, GABAergic, glutamatergic and noradrenergic system. It has been shown that opioids (such as morphine) cause an increase in the amount of dopamine in the mesolimbic system, and increasing the amount of dopamine in the nucleus accumbens plays a key ...

Dissertation for obtaining the master's degree ""M.Sc."" (Chemical Engineering - Thermodynamics and Kinetics) Abstract: Keywords: Computational fluid dynamics, bubble, continuity and failure, floating bed reactors, multiphase systems, vertical vertical flows, PBM, DQMOM, recently liquid gas floating bed reactors have received attention due to their wide application in chemical, ...

Master's Thesis in Chemical Engineering (Process Simulation and Control) Abstract Modeling and Simulation of the Electrostatic Desalination Process of Crude Oil by Elham Ariafard The aim of this research is to model the desalination process of crude oil based on the population balance method. For this purpose, the one- and two-stage electrostatic desalination process, which ...

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 ...

Dissertation for M.sc degree, field: electricity, orientation: power electronics. Abstract Voltage stability is related to the power system's ability to maintain acceptable voltages in all system buses under normal conditions and after disturbance. The system enters an unstable state when a disturbance, an increase in the required load or a change in the system's position causes ...

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 ...

Dissertation for receiving a master's degree, field of study: electricity-power, orientation: electric machines 1.1 Introduction: In a synchronous generator, a dc current is applied to the rotor coil to produce a magnetic field. Then the rotor of the generator is rotated by a prime mover to create a rotating magnetic field in the machine. This magnetic field induces a ...

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 ...

Master's Thesis in Telecommunication Electrical Engineering- LFSR-based scrambler parameter blind detection system in digital data by Zahra Zakeri In digital telecommunication systems, linear scramblers are used both for simple encryption and for breaking a large sequence of identical bits. The bit sequence issue, i.e. a large number of 0's and 1's in a row, usually leads to ...

Abstract A wireless sensor network is a network consisting of many small nodes. The node receives information about the environment through sensors. The energy consumption of the nodes is usually provided by batteries, which in most cases cannot be replaced. Therefore, the consumption power of nodes is an important issue in these networks. And it is very necessary to use ...

Dissertation for Master's Degree in Electrical Power 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, for the ...

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

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 ...

Thesis for master's degree in the field of electrical engineering (power) Farsi abstract: Today, with the expansion of DC consumers and non-linear loads connected to the network, the design and construction of power factor correction circuits using electronic power converters has gained special importance. With the advancement of technology, integrated circuits have come to help ...

Field of study: Mechanics, orientation: energy conversion. The present research was conducted in order to investigate the movement of pig in pipelines. Due to the importance of pipelines in providing energy resources in the world, after installation and operation, the maintenance of these lines is of high importance, which has caused special attention to be paid to the design of ...

Thesis for Master of Science in Agriculture Abstract In order to investigate the effects of different levels of iron and the use of mulch on the growth and performance of beans in the agricultural year of 2013 for one season of autumn cultivation after harvesting peanuts in Salestan village of Astana Ashrafieh in Gilan province, it was carried out using a split-plot experiment ...

Master's Thesis of Precision Instrument Engineering and Industrial Automation in Oil Industries Abstract Non-linear dynamic systems face many challenges that must be investigated. Among these problems, we can point out things like extreme nonlinearity, changing operating conditions, dynamic uncertainty, both structured and unstructured, and external disturbances. Despite the ...

Dissertation for receiving a master's degree in agricultural engineering majoring in agriculture, abstract of this project in order to investigate the effect of nitroxin fertilizer under the conditions of irrigation interruption (based on BBCH, plant phenology stages) on the physiological and agronomic traits of fodder millet cultivars in Damghan region in 2011-2019 as a ...

Dissertation for M.Sc. Electrical Engineering - Control Abstract Considering the high consumption of petrochemical products in the world today and Iran's high potential for the development and supply of petrochemical feedstock, petrochemical complexes are of special importance. Therefore, one of the important reactions called acetylene hydrogenation has been investigated and ...

A master's thesis in the field of mechanics, applied design, abstract. These two characteristics are caused by phase transformations under different thermodynamic loadings. Depending on these two mentioned features, memory alloys can be used as actuators in different forms. These structures can be used in different fields such as medicine, aerospace, knowledge

Dissertation for Master's degree (M.Sc) orientation: energy conversion. Abstract In this research, a study on irreversible absorption refrigeration systems based on internal and external irreversibility is presented with regard to the limited thermal capacities of external tanks. To optimize the system, three scenarios were defined, in which objective functions such as ...

Submitted for Master's Degree Submitted for Master's Degree Abstract In addition to lateral instability, one of the major threats to passenger cars, especially SUVs, is the risk of overturning. In this thesis, a coordination strategy based on fuzzy logic is designed for the integrated operation of active steering, differential, brake and anti-roll bar subsystems. Separate ...

Dissertation for M.Sc degree, major: food microbiology, abstract Sterilized milk products that are prepared by the Faradam method, especially Faradam milk and cream, have opened their place in the diet of Iranian people in recent years. By adding healthy ingredients to products such as breakfast cream, the nutritional value of these products can be improved. In this research, ...

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 ...

Academic Thesis for Master's degree in the field: Accounting. Abstract: monitoring and controlling the price effect is one of the most dynamic research areas in commercial companies and is expanding rapidly. Examining the effects of block trading can be helpful in understanding how the market responds. The scientific purpose of the research is to investigate the impact of block ...

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 ...

Master's Thesis in the field of electrical engineering (control) abstract of the temporal analysis of the transmission of control signals through multi-stage links on industrial networks in order to implement wide control loops with high flexibility. The advancement of technologies related to communication networks in recent decades and their expansion in the upper layers of the ...

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 ...

Master's thesis in the field of civil engineering ""M.Sc. » Orientation: Engineering and Construction Management Abstract: The main goal of this research was to determine the prioritization of the most important factors affecting the productivity of human resources in the implementation phase of the life cycle of urban construction projects. After the investigations, 100 factors ...

Dissertation for Ph.D. Ph.D. Persian Summary Aripiprazole is an atypical antipsychotic drug that shows its therapeutic effect with a combination of antagonistic activity of 5-HT2A receptor and partial agonistic activity of 5-HT1A and D2 dopamine receptors. This drug is used in the treatment of schizophrenia, type I bipolar disorders and as an adjunctive treatment in major ...

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 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 ...

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 ...

Master thesis in the field of electrical engineering (control) abstract of the temporal analysis of the transmission of control signals through multi-stage links on industrial networks in order to implement wide control loops with high flexibility. The advancement of technologies related to communication networks in recent decades and their expansion in the upper layers of the ...

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 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. ...

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 ...

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

Abstract: The purpose of this research was to compare metacognitive skills of male and female high school students in district 3 of Shiraz. The descriptive research method is a survey method. The statistical population of the study includes all

Dissertation for Master's Degree (M.A.) Field: Educational Sciences Orientation: Elementary Education Summer/ 2013 Abstract The purpose of this research is to investigate the role of electronic education classes

Thesis for receiving the master's degree in management (MA), focus: educational management, academic year 1391-1392, abstract of training and improvement of human resources as one of the strategies to achieve

Thesis of Master's Degree in Business Management, Marketing Orientation, Summer 2013 Abstract With the emergence of phenomena such as e-commerce and e-business, the methods used in the field of increasing

Dissertation for receiving a master's degree in architectural engineering, specialization: Architecture, July 2019. Abstract Children have a very special place in today's world, as far as the future of nations and their global position can be predicted based on the characteristics of their children. In advanced countries, educational methods are determined for the flourishing of ...

Thesis for receiving a master's degree in the field of architecture 06/93 abstract Today, as a result of the application of massification and downsizing policy in large urban societies, traditional housing has lost its meaning and concept