Download more than 100 examples of thesis, proposal and project topics about flow in the control valve 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 the field of mechanics, specialization: mechanical engineering - energy conversion. Abstract: One of the most important components of fluid transmission systems are control valves, which can be seen in different routes of oil and gas transmission pipelines, etc. In control valves, the most important issue is the property of the flow in order to achieve the ...
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 ...
Master's Thesis in Mechanical Engineering, Applied Design 1-1-Introduction All humans know that the heart is a vital organ in the human body, so we cannot live without it. But with a purely mechanical view, the heart is just a pump; A very complex and important pump; And in terms of being a pump, like all pumps, there is a possibility of clogging, failure or needing to be ...
Master's Thesis in Mechanical Engineering - Energy Conversion Abstract The vortex tube is a simple mechanical device that has no moving parts and is one of the equipment used in the refrigeration system, in which a high-pressure fluid enters the vortex tube through the inlet nozzles and splits into two streams with a lower and higher temperature than the inlet temperature, thus ...
Abstract: Hydraulic jump is one of the amazing hydraulic phenomena that consumes the kinetic energy of water. Hydraulic structures such as relaxation ponds mainly use this important property of hydraulic jump to consume energy downstream of overflows, rapids and valves. The dimensions of these structures are directly dependent on the characteristics of hydraulic jump, therefore, ...
Master's Thesis (Civil Engineering - Water and Wastewater Engineering) Abstract: In this study, ram impact pump modeling was done by the software that was prepared. This software finds the outputs of the HAMMER software as input and by obtaining other information (including the pumping height, etc.) it calculates the amount of pumped water every time the valve is suddenly turned ...
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 ...
Dissertation for Master's Degree in Civil Engineering, Hydraulic Structures, Abstract: It is obvious that water resources are essential for the life of living organisms and especially for human life. Drainers are a set of structures that are used to transfer water from the dam lake to the discharge point downstream. Therefore, due to the importance of this part of the dam, the ...
Presented to graduate education management as part of the academic activities required to obtain a master's degree in the field of mechatronics. Abstract As you know, air conditioner is a high consumption device and has a Freon refrigeration cycle. What drew the companies to the production of inverters was to solve the shortcoming of air conditioners in high energy consumption. ...
A master's thesis in the field of chemical engineering. Abstract of the laboratory study of the wear phenomenon of gas containing sand and liquid droplets in pipelines. For this purpose, a pipeline test device including: vertical and horizontal pipelines and various connections has been made. The studied fluid consists of three phases: gas, liquid and solid. The gas phase is ...
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 Engineering, Power 1-1 Introduction Energy supply sources in the last few decades have been from fossil sources, which until recently have been obtained almost cheaply. Cheap energy sources caused that the optimal use of energy and energy recycling were practically not paid much attention. Due to the energy shortage crisis and the sense of danger ...
Master's Thesis on Automotive Powertrain Abstract In this thesis, which is presented under the title of turbocharger adaptation suitable for EF7 engine in order to improve volumetric efficiency, firstly, the history of the invention and use of turbocharger is discussed. Then, the naturally aspirated and turbocharged engine are compared, the result of which is to clarify the ...
Dissertation to receive Ph.D. Persian Summary Otostegia persica is one of the Lamiaceae (mint) plants, which in traditional medicine is used to treat malaria, reduce blood sugar and blood pressure, and relieve S fever. The name of this plant in Persian culture is ""golder"". This genus has 3 species of perennial herbaceous plants in Iran: Otostegia aucheri, Otostegia micchauxii, ...
Dissertation for receiving a master's degree in the field: Food Science and Industry Abstract: In addition to changing the organoleptic characteristics of the food, the oxidation of oils reduces the nutritional value and shelf life of oils and has a negative effect on the health of consumers due to the production of undesirable compounds in the oil. There are many ways to ...
Dissertation for Master's Degree in Food Science and Technology, Food Technology, Abstract: In addition to changing the organoleptic characteristics of food, oxidation of oils reduces the nutritional value and shelf life of oils and is harmful to the health of consumers due to the production of undesirable compounds in oil. To prevent oxidation, there are several methods, one of ...
Dissertation for receiving the master's degree (M.A.) public management, human resources orientation, summer 2019, abstract knowledge in today's advanced world of organizations, is rapidly becoming a competitive advantage.
Master's Thesis in Accounting (MA) Abstract The purpose of this article is to investigate the relationship between investment sensitivity and cash flows with the level of capital expenditures. In this research, the financial information of 73 companies admitted to the Tehran Stock Exchange during the period from 1382 to 1391 has been examined (730 years - companies). 18SPSS ...
1- General 1- 1- Introduction Quality can be defined in different ways, most people only have a conceptual understanding of quality, or in other words, an understanding of one or more specific features in a product or service. Conceptual understanding of a point
Dissertation for Master's Degree (M.A.) Major: General, the relationship between self-control and family functioning with social adjustment among high school students in Abadeh city. Abstract The present study was conducted with the aim of investigating the relationship between family functioning and social adjustment among high school students in Abadeh city. This ...
Master's Thesis Abstract Thinking about the surrounding social phenomena begins when a question occupies the mind of the thinker. Philosophers of science believe that science begins with a problem and the problem will be extracted from the heart of the theory. In this research, while agreeing with the first part of this statement, the author refuses to accept the monopoly of ...
Thesis for obtaining a master's degree in the field: business management-financial orientation. Abstract: The purpose of this research is to investigate the role of accruals in evaluating and forecasting cash flows of companies. This research is a library and analytical-causal study and is based on panel data analysis. In this research, the financial information of 103 companies ...
Dissertation for Master's Degree in Civil Engineering - Transportation Planning Abstract Ramp control is one of the most effective highway management strategies and has created many benefits in terms of increasing output in bottlenecks, reducing travel time, number of accidents, etc. Ramp control consists of two competing constraints: freeway capacity and ramp queue. The ...
Abstract Babol-Babolsar study area, with an area of ??1817 square kilometers, is under the Babol-Amol area, which is located in Mazandaran province. About 898 square kilometers of the area is the plain and 919 square kilometers are the heights of the northern slopes of Alborz. Babolrud river is the main source of surface water in the area. The climate of Babol-Babolsar plain is ...
Master's Thesis in the field of Physical Education and Sports Sciences - Physiology. Abstract: Investigating the effect of four weeks of isometric handgrip exercise on changes in blood flow-related vascular dilation and blood pressure in women with hypertension. It seems that hypertension has a complex relationship with endothelial dysfunction. Increased blood pressure ...
Master's thesis in the field of road, building and environmental engineering - hydraulic structures. In this research, the effect of geobags on the scour control of bridge piers has been studied using Computational Fluid Dynamics (CFD) method. Geobags are geotextile bags that are filled with materials such as sand, concrete or materials from river dredging. Due to the ...
An academic thesis for receiving a master's degree in chemical engineering, environmental orientation. Among the models that are able to make successful predictions for the performance of reverse osmosis membranes, that is, the amount of separation and flow flux in a wide range of physical conditions (membrane and solution) and laboratory conditions (pressure and concentration), ...
The first chapter of research overview 1- Introduction The growth and development of joint-stock companies over time led to the emergence and increase of a class of capital owners who did not directly participate in the management of the companies and guided and monitored the company's affairs through the selection of the board of directors. This new development created a new ...
Dissertation to receive a master's degree in the field of Analytical Chemistry, Abstract Biosynthesis of gold nanoparticles with small size and biological stability are very important and have various biomedical applications. In this work, an easy and simple method for the green synthesis of gold nanoparticles using willow tree bark extract is reported. The bark of the willow ...
Doctoral thesis in the field of chemical engineering abstract theoretical and experimental investigation of the continuous process of desalination of heavy crude oil using microwaves and ultrasonic waves Desalination of crude oil is the first step in oil refining, by which the undesirable compounds with the oil are separated before they reach the main unit. In order to reduce ...
Master's thesis in the field of chemical nanoengineering Abstract The synthesis of silicon dioxide nanoparticles from silicon oil waste using the synthesis method of silicon dioxide nanoparticles [1] has many industrial applications. The industrial use of these particles in traditional fields as well as new fields is expanding, for which new applications are continuously found. ...
Master's Thesis of the Department of Occupational Therapy Farsi Abstract Introduction: The increasing prevalence of stroke, the need to use more effective tools and techniques in this disease to reduce the duration It requires treatment, acceleration and facilitation of recovery and return of function of the affected organs. Therefore, the present study was conducted with the ...
Dissertation to receive the Ph.D. degree in Pharmacy Persian Summary A group of N-aryl phthalimide derivatives were evaluated for anti-inflammatory activity. Non-steroidal anti-inflammatory drugs are considered as analgesic and anti-inflammatory and their primary mechanism is cyclooxygenase enzyme inhibition. Cyclooxygenase is a key enzyme in the production of prostaglandin and ...
Master's thesis in the field of instrumentation and automation engineering in the oil industry, abstract modeling and non-invasive control of implantable blood pumps in the body for heart failure patients. Left ventricular assist devices (LVAD) are mechanical pumps that are surgically placed in the body of patients who are in the dangerous and final stages of congestive heart ...
Dissertation for Master's Degree Abstract The general purpose of this research is to investigate the effect of low-intensity resistance training with restricted blood flow on the serum levels of growth hormone, cortisol, testosterone and IGF-1 in young men. 30 healthy young men with an age range of 19-24 years who volunteered to participate in the study were selected as a ...
Master's Thesis in Chemical Engineering Abstract: The purpose of this thesis is mathematical modeling of rotary dryer for drying dicalcium phosphate. In this project, with different temperature conditions and different number of cycles of the dryer, the moisture level of the product exiting the dryer has been checked. As a result, 100 data have been obtained from the output of ...
Dissertation to receive a master's degree ""M.Sc"" in the field of electrical engineering, power systems trend Abstract Today, significant advances in semiconductor technology and the emergence of high-power switches that have the ability to be turned off by a control signal on the one hand and the better efficiency of multi-level converters compared to two-level converters on ...
Master's Thesis in Speech Therapy 1 Introduction Speech and language is the most efficient way of communication between humans. This method of communication can play its role effectively if it has special features. Each of these features may be damaged to different degrees separately or together for various reasons and disrupt the human communication path. One of the most common ...
Master's Thesis in Mechanical Engineering, Applied Design, Abstract In this research, an analytical solution is presented to show the size dependence and the effect of temperature difference on nonlinear free vibrations and post-buckling behavior of microtubes containing current. Based on Euler-Bernoulli model, strain gradient theory, Couple's stress theory and von-Carman ...
Dissertation for Master's degree (M.Sc) in the field of electrical-power engineering. Abstract In this thesis, the design of a resistant controller in power electronic circuit breakers and its comparison with linear control methods have been examined. The main goal of research and development in this field is always to find the most suitable control method in order to implement ...
Dissertation for Master's Degree (M.Sc.) Field: Horticulture-Ornamental Plants Abstract To investigate the effect of gap and silver nanoparticles on the life of the flower and the hyphae characteristics of Alstroemeria hybrida cut flowers, a 2-factor factorial experiment based on a completely randomized design with two factors of stem end gap in 2 levels (5 cm gap and no gap) ...
Dissertation for Master's Degree (M.Sc) Abstract Chrysanthemum (Chrysanthemum morifolum L.) is one of the most important cut flowers in the world, which today ranks second in the world after roses in terms of economy and cultivation. One of the important problems of this flower is vascular blockage and disruption of the water balance. For this purpose, a study based on a ...
Master's thesis in the field of agricultural engineering - horticultural sciences, specialization: ornamental plants. Abstract In order to investigate the effect of sodium nitroprusside on the flowering life of rose, sunflower and lisianthus cut flowers, a study was conducted in the form of a factorial experiment based on a completely randomized design with two sodium ...
Dissertation for obtaining a master's degree in natural resources-environmental engineering. Abstract: Assessment of development effects is a process that deals with diagnosis, identification, prediction, evaluation and reduction of the effects of development projects. Determining the importance of environmental effects is one of the most important concerns of the process of ...
Department: Plant Products Master's Thesis in Plant Products-Horticulture Abstract Rose (Rosa hybrida) is considered one of the most popular flowers in the world and its cut flower branch is the most used among other flowers. Due to the physiological reasons of being a rose cut flower, during its shelf life, it is highly susceptible to withering and reducing its freshness and ...
Mechanical Engineering Master's Thesis - Energy Conversion One of the ways to reduce energy consumption for underwater devices is to reduce the drag on these devices. The nose of underwater objects is one of the most important parts of these objects in dealing with currents. By optimizing this part, the drag can be reduced by controlling the boundary layer of the fluid, by ...
Dissertation for obtaining a master's degree in the field: horticulture, ornamental plants. Abstract This study was conducted in order to investigate the effect of nickel on the life after harvesting of gerbera flower in the form of a completely randomized design with three replications. Healthy gerbera flowers (Gerbera jamesonii cv. 'Intense') were purchased from a commercial ...
Dissertation for Master's Degree in Mechanical Engineering (Energy Conversion) Abstract In this thesis, the mass and heat transfer of water-aluminum oxide nanofluid in a two-dimensional porous medium under a magnetic field and in the vicinity of a vertical wall has been investigated. The boundary wall can be permeable or impermeable. The concentration and temperature of the wall ...
Dissertation for Master's Degree (M.Sc.) Field: Horticulture-Ornamental Plants Abstract chrysanthemum (Dendranthema grandiflorum L.) is one of the non-flowering flowers and sensitive to vascular blockage. This study is based on a completely randomized design with 10 treatments including geranium plant essential oil in 3 levels (2, 6 and 10 cc in 600 cc of distilled water), case ...
Master's thesis in the field of mechanical engineering (applied design) abstract of dynamics and adaptive fuzzy control of limited-time sliding mode of hexa-parallel robots using the synchronization error of the development and increase of industrial production and the subsequent economic and social growth of a society in the new century is tied to the automation of production ...
Master's Thesis in the field of Mechanical Engineering - Energy Conversion Abstract Numerical investigation of fluid flow and heat transfer on mesh plates with cross holes under discontinuous suction Introduction 1-1- Fluid flow on mesh plates The urgent need of modern humans to use different fuels and the problem of environmental pollution caused by improper and indiscriminate ...
Thesis for receiving a master's degree in the field of civil engineering of hydraulic structures, October 2013 This study is to quantitatively evaluate the effects of watershed operations and with the aim of evaluating the efficiency of projects
Department of Industrial Management Winter 2019 Abstract: The current research is about the mutual effect of supply chain management and customer relationship management in Esfrain Steel Company. In order to answer the research questions
Dissertation for Master's Degree in Civil Engineering/ Cold Water Engineering 1392 1-1- Introduction In this chapter, an overview of the concept of climate change and its causes and the effect of this phenomenon on natural resources and
endname? Rasht Master's Degree: Civil Engineering (M.S.C.) Focus: Hydraulic Structures Academic Year 2011-2012 Summary of the Minab River, the most important river of Khan? The fresh water is in Hormozgan province. this river
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
Master's Thesis in Financial Management and Budgeting, September 2019, abstract according to the duties of the legislator to implement financial supervision in order to properly implement the budget and comply all payments with laws and regulations.
Dissertation for Master's Degree in Business Management with Financial Orientation Year: February 2018 Abstract: The purpose of this research is to investigate the effect of future contracts on investment risk in Tehran Stock Exchange.
Dissertation for obtaining a master's degree (A..M) orientation: Human Resources Winter 2019 Abstract With the advancement of technology and the complexity of organizational activities, it can be boldly claimed that the working life of
Master's Thesis of Ardakan Faculty of Art and Architecture, Department: Carpets, November 2013 Abstract: Some contemporary (mostly commercial) carpets have defects in color, which are checked by a restorer upon the customer's request.
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
Abstract: Today, air pollution has become one of the main management challenges in different countries of the world, so that countries, in addition to internal policies and measures, organize pollution in the field of
Dissertation for receiving a master's degree (M.A.) orientation: development economics and economic planning summer 2012, the first chapter of the plan 1-1 Statement of the research problem: T
Thesis for obtaining a master's degree in economic sciences, February 2019 Abstract: The main objective of this research is to estimate the factors that determine the intensity of trade for member countries of the Organization of the Islamic Conference in the export of foreign goods.
Dissertation for the Master's degree ""M.A."" Accounting major: Accounting Abstract: In this research, the relationship between ownership structure and financing methods of companies accepted in the capital market of Iran has been investigated. The model (Lin et al., 2013) has been used to measure financing methods. Among the financing control mechanisms, institutional ...
Master's thesis in accounting, the present research was done to provide evidence to clarify the relationship between the quality of profit and the liquidity of stocks, as well as to evaluate the impact of the quality of profit on the liquidity of stocks. In this research, 96 companies admitted to the Tehran Stock Exchange in the 5-year period of 1387-1392 (with one year in ...
Faculty of Basic Sciences, Department of Human Geography, Dissertation for Master's Degree ""M.A"" Major: Rural Planning, Introduction to the investigation of activity platforms, especially agriculture and factors affecting the quality and quantity of its products, which itself plays an effective role in the development of activists and is extremely important. Summarizing the ...
Master's Thesis in Accounting, Abstract The purpose of this research is to investigate the relationship between the components of quality costs and quality in the company. In this research, the traditional method was used to collect the quality costs and the PAF model was used to determine the components of the quality costs. Research hypotheses based on a statistical sample for ...
Addressing the problem of the stock exchange is the main way of equipping and optimally allocating capital in the country, and knowing this market and the elements and connections in it is considered one of the most important factors in the capacity of the capital market. Investors are one of the important elements of this market. Investors have different goals for investing in ...
Dissertation for Master's Degree in Social Sciences Abstract: The present study was conducted with the aim of investigating the relationship between social factors and the level of political awareness of women in Garami city. The research method in this study is a survey, and the statistical population includes all women over 20 years old in the city of Garami, which is about ...
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
The thesis for obtaining a master's degree in the field of librarianship and communication. The abstract of the present research examines and compares the information-seeking behavior of graduate students of Islamic Azad and Kurdistan University, Sasandaj branch, on the global web based on the Ellis model. The research method is a survey and the data is collected through a ...
Dissertation for Master's Degree (M.A.) Major: General Psychology. The abstract of the present research is to investigate the effectiveness of emotional intelligence in reducing the dependence on Facebook of female high school students in Tehran. The hypotheses of the research are: 1- Training to improve emotional intelligence reduces the dependence of high school students on ...
Dissertation for obtaining a master's degree in the field: Natural Geography, specialization: Geomorphology in environmental planning. The abstract of this research, using the descriptive and analytical method along with library and documentary studies and field observations, investigates the hydrogeomorphology of the Masuleh River basin with an emphasis on the waterfalls of the ...
Master's Thesis in Geography and Urban Planning Abstract Today, cities are expanding and developing with rapid growth, so that the process of urban development is currently one of the most important issues facing researchers of urban issues. In addition to the rate of growth of cities, how the uses change at the macro level is also of interest. The current research is provided ...
Dissertation for M.A degree in geography and urban planning. This research examines the role of people's participation in the development of Ardabil city. After reviewing the theoretical literature and the research conducted in relation to the topic, the research hypotheses were formulated as follows. There is a significant relationship between public participation and the ...
Master's thesis in the field of financial management Abstract Deciding on the payment of interest and its amount is an important issue in the field of corporate finance; Because in this decision, the amount of money that should be paid to investors and also the amount of money that should be accumulated for reinvestment is determined. In this research, the factors affecting the ...
Dissertation for Master's Degree in Psychology (M.A.) Direction: Clinical The purpose of education and training is to flourish and actualize all human talents with well-considered programs, this requires identifying and realizing their strengths and weaknesses, counselors have played a sensitive and effective role in this field for a long time, so the main goal of this research ...
Thesis of Master's Degree in Economic Sciences, Mehr 2013 Abstract Although the achievement of economic development should be considered as a result of several factors, but without a doubt, one of the most important factors in creating it can be entrepreneurship.
Dissertation to receive M.A. degree Abstract: The present study investigates the relationship between the influence of the composition of ownership and the board of directors of companies on corporate social responsibility in companies listed on the Tehran Stock Exchange. The purpose of this research is to identify the factors affecting the level of compliance with social ...