Download the thesis about non linear control✅ Word Document

Download more than 100 examples of thesis, proposal and project topics about non linear control in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.

Number of pages: 133 Category: Electrical Engineering

Abstract: The design of output resistant static controller to achieve fuzzy tracking for nonlinear systems described by Takagi-Sugno T-S model. The subject of this thesis is related to the problem of designing output resistant static controller to achieve fuzzy tracking for systems with time delay and uncertainty that can be modeled by Takagi-Sugno (T-S) fuzzy modeling. The ...

Number of pages: 97 Category: Electronic Engineering

Dissertation for the M.Sc. In the field of electrical engineering, power electronics, abstract: The material that is analyzed in this thesis in order to simulate and implement the buck converter nonlinear controller is presented in four chapters. In general, the buck converter and the relationships governing it and the studies conducted on the buck converter and a control method ...

Number of pages: 107 Category: Industrial Engineering

Thesis for receiving the degree of M.Sc. Industrial Engineering-Industrial Engineering Summer 2013 Abstract: In today's age, are there fewer companies? It can be seen that it is exclusively related to the production of a product.

Number of pages: 127 Category: Electronic Engineering

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 ...

Number of pages: 92 Category: Electronic Engineering

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 ...

Number of pages: 100 Category: Civil Engineering

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 ...

Number of pages: 87 Category: Civil Engineering

To obtain a master's degree in the field of civil engineering - structural orientation. Abstract: The subject of this research is to investigate the level of performance and accuracy of methods based on non-linear static analysis and the need to retrofit steel buildings with a dual system of bending frame with cross brace and convergent 7-shaped brace designed with the 2800 Iran ...

Number of pages: 140 Category: Civil Engineering

Master's thesis in the field of road, building and environmental engineering - hydraulic structures Abstract In this research, nonlinear wave differential equations are solved by the local RBF-DQ numerical method. These differential equations are in the form of Laplace's equation (as a governing equation) and nonlinear boundary conditions on the free surface; The basis of the ...

Number of pages: 104 Category: Paramedical

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 ...

Number of pages: 91 Category: Electrical Engineering

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 ...

Number of pages: 94 Category: Facilities - Mechanics

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 ...

Number of pages: 129 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering (Applied Design) Abstract: Electromechanical micro and nano systems have been noticed due to their distinctive features and unique characteristics, mainly in the two fields of sensors and sensors, in various sciences such as mechanics, aerospace and medicine. Electrostatic stimulation is one of the simplest and most ...

Number of pages: 129 Category: Electrical Engineering

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 ...

Number of pages: 76 Category: Electrical Engineering

Master's degree in electrical engineering, control orientation, electrical engineering, control orientation, abstract. Today, chemistry and oil and gas extraction and refining is one of the most important economic and productive support points of countries. One of the most common processes in refineries is the separation of chemicals. This is done using separator towers. The ...

Number of pages: 124 Category: Facilities - Mechanics

Dissertation for master's degree in Applied Design-Dynamics and Control Abstract: Transverse instability is one of the common problems in high-speed rail vehicles, which occurs on rails without arches and due to the friction-creep nature of wheel-rail contact that creates non-conservative forces in the system. This phenomenon is called hunting, which is a type of ...

Number of pages: 133 Category: Civil Engineering

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

Number of pages: 81 Category: Electrical Engineering

Obtaining a master's degree in the field of electrical engineering, electronics, abstract, mechanization of tools is one of the most important and extensive fields used in production processes. Due to the complexity and uncertainty of machining processes, recently soft computing techniques [1] based on physical models have been preferred to predict the performance of machining ...

Number of pages: 181 Category: Civil Engineering

Dissertation for Master's Degree > Direction: Hydraulic Structures Abstract: One of the assumptions that is made to simplify the dynamic analysis of the existing weighted concrete dams is the uniformity of the foundation in terms of physical parameters such as modulus of elasticity and damping. This is despite the fact that, in practice, different geological conditions may ...

Number of pages: 114 Category: Electrical Engineering

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 ...

Number of pages: 203 Category: Electronic Engineering

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 ...

Number of pages: 113 Category: Electronic Engineering

Dissertation for Master's Degree in Telecommunication Electrical Engineering (Field) In this thesis, a patch microstrip antenna with very effective changes in the ground plane and its radiation part is studied to increase efficiency, create various modes of frequency response and the possibility of controlling these modes. The changes applied to this antenna have created a new ...

Number of pages: 186 Category: Electronic Engineering

Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy for uncertainty estimation. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a result, the volume of controller ...

Number of pages: 100 Category: Electrical Engineering

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 ...

Number of pages: 93 Category: Electrical Engineering

Master's Thesis, Electrical Engineering, Power, Abstract: The sliding mode control method is one of the most important non-linear control methods, whose distinctive characteristics are insensitivity to parameter changes, complete rejection of disturbance, and dealing with uncertainty. This controller first brings the system from the initial state using the law of reaching the ...

Number of pages: 94 Category: Electrical Engineering

Dissertation for receiving a master's degree in the field of: Power Electricity Abstract 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 micro-grids[1] have increased the need for new ...

Number of pages: 79 Category: Electronic Engineering

Seminar for obtaining a master's degree in the field of electrical engineering, electronics, abstract mechanization of tools is one of the most important and extensive fields used in production processes. Due to the complexity and uncertainty of machining processes, recently soft computing techniques [1] based on physical models have been preferred to predict the performance of ...

Number of pages: 198 Category: Industrial Engineering

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 ...

Number of pages: 110 Category: Electrical Engineering

Dissertation for M.Sc. The tendency of the abstract power transmission networks of modern power systems is increasingly changing due to the increase in demand and limitations in the construction of new lines. One of the consequences of such a stressed system is the risk of losing stability after a disturbance. Flexible alternating current transmission systems (facts) are very ...

Number of pages: 119 Category: Electrical Engineering

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 ...

Number of pages: 147 Category: Electrical Engineering

Dissertation for receiving the master's degree ""M.Sc."" Trend: The power of the series active filter is designed for harmonic separation and load voltage regulation in non-linear loads of single-phase and three-phase harmonic voltage source type. A new method for extracting harmonics of load voltage is proposed under the name of absolute value method, which is applied to the ...

Number of pages: 147 Category: Facilities - Mechanics

Dissertation for Master's Degree in Energy Conversion Mechanical Engineering Abstract: Fluid propulsion vector orientation has emerged as an important technology for high performance air vehicles. This technology can improve the maneuverability of the aircraft by changing the nozzle flow and its deviation from its axial direction. The purpose of this study is to investigate the ...

Number of pages: 107 Category: Facilities - Mechanics

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 ...

Number of pages: 190 Category: Electronic Engineering

Dissertation for Doctoral Degree Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy to estimate uncertainty. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a ...

Number of pages: 103 Category: Electrical Engineering

Dissertation for Master's Degree in Telecommunication Electrical Engineering (Field) In this thesis, a patch microstrip antenna with very effective changes in the ground plane and its radiation part is studied to increase efficiency, create various modes of frequency response and the possibility of controlling these modes. The changes applied to this antenna have created a new ...

Number of pages: 101 Category: Educational Sciences

Dissertation for Master's Degree in Educational Psychology Spring 2019 Abstract Concept map is one of the teaching-learning strategies that can facilitate meaningful learning in students and relationships

Number of pages: 154 Category: Civil Engineering

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

Number of pages: 108 Category: Civil Engineering

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

Number of pages: 147 Category: Management

Dissertation for obtaining a master's degree (M.A) Business Management - Marketing Orientation Summer 2019 Abstract Considering the ever-increasing speed of changes and competition in the economic world, managers should have

Number of pages: 124 Category: Agricultural Engineering

Abstract Today, rice is the main food of more than half of the world's population and rice is cultivated in five continents and more than forty countries. Rice is one of the main meals of the people of Iran, until 1340, Iran exported more or less rice annually, and since then, as a result of the improvement of the economic situation of the people and the rapid increase of the ...

Number of pages: 134 Category: Librarianship

Dissertation for receiving a master's degree, Major: Accounting, Abstract: Considering the importance of the liquidity of companies' shares in the capital market, the present research seeks to investigate the factors affecting liquidity. In this regard, the impact of dividend policies on the liquidity of companies' shares has been tested. In this research, multiple linear ...

Number of pages: 136 Category: Social Sciences - Sociology

Master's Thesis in Family Counseling Abstract: The present study was conducted with the aim of investigating the relationship between emotional intelligence of female teachers and violence against them. In addition, subscales of emotional intelligence were used to predict violence against female teachers. For this purpose, 280 female teachers were selected by cluster sampling ...

Number of pages: 107 Category: Industrial Engineering

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

Number of pages: 155 Category: Educational Sciences

Dissertation for Master's Degree (M.A.) Major: General Abstract The purpose of this research was to predict children's mental health and resilience based on marital satisfaction and mothers' attachment styles. The method of the present research was descriptive correlation of the predictive type. The statistical population of this research is made up of all the 10-12-year-old ...

Number of pages: 147 Category: Psychology

Dissertation for Master's Degree in Clinical Psychology Abstract In this research, the moderating role of coping strategies and social support in the relationship between quality of life, psychological symptoms and parenting styles has been examined and 120 female heads of households in Alborz province were selected as the research sample. Research evidence and the results of ...

Number of pages: 217 Category: Management

Dissertation for Master's Degree in Industrial Management, Finance, Subject: Investigating the relationship between credit risk management and overdue claims of Mellat Bank. The statistical population of the current research is Bank Mellat of Semnan province. The statistical sample of the present research is in the management of Bank Mellat branches in Semnan province in the ...

Number of pages: 145 Category: Psychology

Dissertation for Master's Degree (M.A.) Major: Industrial and Organizational Relationship between Emotional Intelligence and Job Satisfaction with Organizational Citizenship Behavior of Finance Employees of Fars University of Medical Sciences Abstract In this research, the effect of organizational citizenship behavior, emotional intelligence on job satisfaction of finance ...

Number of pages: 165 Category: Management

Dissertation for Master's degree ""M.A"" in Business Management International Business Abstract The aim of this research was to investigate the effect of brand personality on trust, attachment and commitment to the brand in the detergent industry. For this purpose, 385 consumers of detergents who buy from chain stores in Tehran were selected as a sample and answered the standard ...

Number of pages: 129 Category: Psychology

Dissertation for M.A. Degree: Clinical Psychology Abstract Objective: The present study compares active schemas in depressed subjects with anxious subjects in non-profit Azad University students of Rasht city. The research method is correlational and post-event, comparative and cross-sectional. The statistical population of this research was all the people who studied in the ...

Number of pages: 101 Category: Textile Industries

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 ...

Number of pages: 99 Category: Librarianship

Dissertation for obtaining a master's degree in the field: accounting, major: accounting. Abstract In this research, the relationship between avoidance and reckless financial reporting in companies listed on the Tehran Stock Exchange has been investigated. The statistical sample of the research included 140 companies during the period of 1381 to 1390. In this research, it ...

Number of pages: 159 Category: Librarianship

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 ...

Number of pages: 105 Category: Management

Dissertation for Master's Degree (M.A.) Orientation: ""Strategic"" Introduction Today, the need for proper planning is clear in order to correctly estimate the time and cost of the project and the amount of resources required in a project, which have a direct impact on the implementation, administration and proper exploitation of projects such as dam construction and building. ...

Number of pages: 179 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree, field: human geography, orientation: urban planning, abstract: urban decay is one of the serious problems and unavoidable phenomena that urban management in all countries of the world is facing. What is important is that urban wear and tear is not specific to a specific country or a specific city, but all cities and villages in the ...

Number of pages: 98 Category: Electronic Engineering

Master's thesis in electrical engineering, control trend, abstract of new methods of identifying errors in systems, such as the use of qualitative analysis of events, can lead to tangible and understandable results for everyone. The gas turbine system is one of the systems in which there is a possibility of many errors. And sometimes even modeling them with mathematical methods ...

Number of pages: 123 Category: Electronic Engineering

Dissertation for master's degree in electrical engineering, power orientation. Abstract The limitation of fossil fuel resources and the possibility of running out of fossil energy reserves, global warming, environmental pollution, price instability, as well as the increasing need of industrial and urban centers for energy, have made the international community think of suitable ...

Number of pages: 81 Category: Electronic Engineering

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 ...

Number of pages: 81 Category: Electronic Engineering

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 ...

Number of pages: 84 Category: Electronic Engineering

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 ...

Number of pages: 118 Category: Electronic Engineering

Dissertation for obtaining a master's degree in the field of electrical-power engineering. Abstract: In recent years, attention to high productivity and efficiency in various industries has rapidly expanded the scope of application of power electronic equipment. These equipments have increased power quality problems in distribution networks due to their non-linear ...

Number of pages: 123 Category: Electronic Engineering

Master's Thesis in the field of electrical engineering- control, abstract assessment of the transient stability of power systems using the data of phasor measurement units, quick assessment of security in power networks in emergency situations and the occurrence of various errors, is a vital thing to prevent collapse and create nationwide outages. Therefore, the evaluation ...

Number of pages: 89 Category: Computer Engineering

Dissertation for Master's Degree in Computer Engineering - Artificial Intelligence Abstract Image segmentation is a basic process in many applications of image processing and machine vision, which can be considered as the first low-level processing step in digital image processing. Image segmentation has various applications such as medical image processing, face recognition, ...

Number of pages: 131 Category: Computer Engineering

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 ...

Number of pages: 85 Category: Electrical Engineering

Master's thesis in the field of medical engineering, improving the common spatial pattern filtering method to improve the efficiency of brain-computer interface systems. Therefore, this capability can help many sensory-motor patients and solve their problems in relation to their surroundings to a very high extent.

Number of pages: 107 Category: Electronic Engineering

Master's thesis in electrical engineering, electronics major. Abstract: In this thesis, a method for identifying Persian vowels in monosyllabic words is presented. For this purpose, after separating the image frames and selecting the frames that were related to the pronunciation of the vowel in the monosyllabic word, as well as extracting the area around the lips, various ...

Number of pages: 102 Category: Management

Thesis for obtaining the master's degree ""M.A."" Field: Business Management, Financial Orientation Abstract: Working capital management plays an important role in the better performance of companies. Therefore, determining the appropriate policies in this direction can have a greater impact. Because as the performance of companies improves, their value also increases. ...

Number of pages: 108 Category: Management

Dissertation for obtaining a master's degree in the field of business management, financial orientation. Abstract The purpose of this research was to investigate the situation of transformational leadership of staff managers of applied scientific universities in Semnan province and its relationship with the indicators of the learning organization. The main question of this ...

Number of pages: 149 Category: Civil Engineering

Dissertation for receiving the master's degree ""M. Sc."" Field: Agricultural Engineering Major: Water Structures Abstract The sediment transfer process is a completely complex, variable and non-linear phenomenon. So that the behavior of the river in the sediment transfer capacity for a certain discharge is different in different times. Therefore, due to the complexity of the ...

Number of pages: 153 Category: Civil Engineering

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

Number of pages: 159 Category: Civil Engineering

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 ...

Number of pages: 132 Category: Management

Master's Thesis of Public Administration, Information Systems, Abstract: Working environments are changing significantly, and the demand for high-quality goods and services is increasing. In order for organizations to maintain their competitive position in the face of such pressures, quality is considered a vital factor. Maybe the first step for companies to be competitive is to ...

Number of pages: 175 Category: Civil Engineering

Master's thesis in the field of civil engineering, structural orientation. Abstract: Investigating the effect of span length on bridge behavior under the simultaneous effect of horizontal and vertical components. Among all types of structures, bridges are one of the pillars of vital arteries that need to be used after an earthquake to provide access to hospitals, fire stations, ...

Number of pages: 158 Category: Civil Engineering

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. ...

Number of pages: 155 Category: Management

Dissertation for the degree of ""M.A."" Executive Management (Strategic) Abstract The general purpose of the research was to investigate the impact of comprehensive quality management on customer satisfaction in the telecommunications company of Hormozgan province. The descriptive research method is survey type. The statistical population of this research included all the ...

Number of pages: 231 Category: Civil Engineering

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

Number of pages: 107 Category: Civil Engineering

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

Number of pages: 174 Category: Civil Engineering

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

Number of pages: 182 Category: Electrical Engineering

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 ...

Number of pages: 96 Category: Civil Engineering

Master's Thesis Field: Civil Engineering Abstract Bridges are inseparable members of the means of communication and are very influential in economic and social conditions. The passage of time and random loads are among the things that threaten the health of bridges. Abnormal loads caused by natural accidents, execution errors and some other issues can cause progressive collapse ...

Number of pages: 97 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering, Structures Chapter 1: Introduction-1-Introduction In recent years, the philosophy of traditional methods, which were based on the design of structures against natural hazards, has undergone major changes. Extensive destruction of structures designed on the basis of old regulations in recent earthquakes, advances in analysis ...

Number of pages: 139 Category: Biology - Environment

Master's thesis abstract shows the necessity of having a healthy environment and raising the health level of the society, the need to have proper planning to reduce the sources of air pollutants production and predicting these pollutants to prevent its harmful effects is inevitable. Prediction of pollutants can be useful in air pollution management and control. In this research, ...