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    Clinical methods in medical family therapy

    , Book ; Mendenhall, Tai ; Lamson, Angela ; Hodgson, Jennifer ; Baird, Macaran A
    Springer International Publishing AG  2018

    Disability and vocational rehabilitation in rural settings : challenges to service delivery

    , Book ; Harley, Debra A ; Ysasi, Noel A ; Bishop, Malachy L ; Fleming, Allison R
    Springer International Publishing AG  2018

    Business ethics : a philosophical and behavioral approach

    , Book Conrad, Christian A.
    Springer International Publishing AG  2018

    Energy and the wealth of nations : an introduction to biophysical economics

    , Book Hall, Charles A. S ; Klitgaard, Kent
    Springer International Publishing AG  2018

    Trajectory Optimization of a Dual-arm Cam-lock Robot Considering Redundancy

    , M.Sc. Thesis Sharif University of Technology Rashidnejhad, Sajad (Author) ; Meghdari, A. (Ali) (Supervisor) ; Ghaemi Osgouie, Kambiz (Supervisor)
    In the present work, trajectory optimization of the Dual-Arm Cam-Lock robot considering kinematic and dynamic redundancy is performed. First, the optimal control problem is solved only considering kinematic redundancy and then is solved considering dynamic redundancy. General form of the dynamic model for the system is developed using Lagrangian relations. Global optimization method is used for redundancy resolution problem. A performance index is defined based on the consumed kinetic energy and is minimized through a desired trajectory using the global optimization method. Formulations of optimal control problem are derived and initial boundary problem is changed to two point boundary value... 

    Hardware Implementation of Fuzzy Logic for Turbojet Engine Fuel Control System

    , M.Sc. Thesis Sharif University of Technology Yousefpour, Hossein (Author) ; Montazeri, Morteza (Supervisor) ; Kazemzadeh Hannani, Siamak (Co-Advisor)
    Gas turbine engine control is a demanding task that requires the regulation of the thrust as well as the satisfaction of the limitations such as engine aerodynamic instability, over temperature and over speed. Fuzzy logic is an attractive technique for the control of poor understood unmodeled, or complex systems especially where the experience of human operators is available to provide qualitative rules. In such cases, it has been found that control decisions can be made on the basis of linguistic measures or fuzzy algorithms. The controller that is designed on the basis of this theory is called fuzzy logic controller. The main objective of this thesis is hardware implementation of fuzzy... 

    Mechanical Behavior Analysis of Carbon Nanotube-Based Polymer Composites using Multiscale Modeling

    , Ph.D. Dissertation Sharif University of Technology Montazeri Hedesh , Abbas (Author) ; Naghdabadi, Reza (Supervisor) ; Rafii Tabar, Hashem (Supervisor) ; Bagheri, Reza (Supervisor)
    In this project, two multiscale modeling procedures have been implemented to study the mechanical behavior of SWCNT/polymer composites. First, a new three-phase molecular structural mechanics/ finite element (MSM/FE) multiscale model has been introduced which consists of three components, i.e. a carbon nanotube, an interphase layer and outer polymer matrix. The nanotube is modeled at the atomistic scale using MSM, whereas the interphase layer and polymer matrix are analyzed by the FE method. Using this model, we have investigated the macroscopic material properties of nanocomposite with and without considering the interphase and compared the results with molecular dynamics (MD) simulations.... 

    Uranium Recovery from Liquid Waste of UCF by Solvent Extraction Method

    , M.Sc. Thesis Sharif University of Technology Aminoro-a-yaei Yamini, Leyla (Author) ; Samadfam, Mohammad (Supervisor) ; Taghizadeh, Mohammad (Supervisor) ; Ghasemi, Mohamad Reza (Co-Advisor)
    The Atomic Energy Organization of Iran (AEOI) has launched a program of low level waste management. This program also includes waste produced at Uranium Conversion Facility (UCF) of Esfahan. The liquid waste, which was generated during the operation of plant and concentrated in lagoon, was characterized for the development of the treatment process. The aim of this study was to recovery of uranium content of liquid waste in the lagoon. The recovery of uranium has the advantage of saving this valuable metal and the avoidance of unacceptable discarding solution to the environment. Uranium may be recovered from an aqueous solution by precipitation, solvent extraction and ion exchange.... 

    Boron Isotope Separation by Distillation of BF3-(C2H5)2O Complex

    , M.Sc. Thesis Sharif University of Technology montazeri, Meysam (Author) ; Otukesh, Mohammad (Supervisor) ; Ahmadi, Javad (Supervisor)
    Natural boron consists of two stable isotopes, mass 10 (19.3%) and mass 11 (80.7%). 10B isotope has a large thermal neutron capture cross-section and it therefore, used widely in such aspects as modern industry, military equipment, medical science and so on. specially the demand of atomic energy industry for the boron isotope is increased severely. So the separation of 10B from natural boron has received very wide attention at present. There are many kinds of methods on the boron isotopes separation, such as chemical exchange reaction and distillation in boron trifluoride method, ion exchange in boric acid solution method, counter current recycle membrane cascades in boron trifluoride... 

    Coupled Attitude-orbit Dynamics and Control of Solar Sail by Moving the Center of Mass

    , M.Sc. Thesis Sharif University of Technology Montazeri Hedesh, Hamidreza (Author) ; Asadian, Nima (Supervisor)
    In this thesis, firstly we have developed a coupled dynamic for the orbit and attitude of a solar sail. Secondly, we found an optimal trajectory from the Earth to Mars and tried to control the system on the optimal trajectory by a control mechanis which moves the center of mass of the sail. The solar sail is considered to be rigid and Ideally reflective which means the sail reflects the full extent of the photons it receives. Adjusting the center of mass of the sail is done by changing the position of two sliding masses rode on two rails perpendicular to each other. Moving the center of mass of the sail brings about a change in the attitude of the sail which then causes a deflection in the... 

    Real-Time Fusion of Asynchronous Data in Distributed Sensor Networks

    , Ph.D. Dissertation Sharif University of Technology Talebi, Hadi (Author) ; Hemmatyar, A. M. Afshin (Supervisor)
    Real-time asynchronous data fusion for high-speed phenomena is an important and challenging task in the sensor networks. Examples of data fusion applications in sensor networks are: managing the traffic of maneuvering airplanes and ground vehicles in airside areas of an airport, traffic management in streets and roads, Driver Assistance Systems, guidance of antiaircraft and antimissile missiles. In all the data fusion applications the estimation of the required variables is necessary.
    In this research two methods are introduced for real-time asynchronous data fusion, especially for track-to-track fusion of high-speed phenomena in sensor networks. The effectiveness and usability of these... 

    Multi-scale Simulation of Protein Corona Formation at Nano-bio Interface in the Presence of Different Metabolites

    , Ph.D. Dissertation Sharif University of Technology Tavakol, Mahdi (Author) ; Naghdabadi, Reza (Supervisor) ; Sohrabpour, Saeid (Supervisor) ; Montazeri Hadesh, Abbas (Co-Supervisor) ; Mahmoudi, Morteza (Co-Supervisor)
    One of the most promising strategies for fighting cancer is the drug delivery process using synthetic nanoparticles. Once in biological milieu, the nanoparticle surfaces get covered with a layer of biomolecules called the “Protein Corona”. The protein corona formation changes the nanoparticles interaction with the human body dictating a new fate for them. The protein corona composition is not only dependent on the nanoparticle itself, but also it is affected by the health condition of patients as recently discovered through the experimental studies. Here, the effect of disease on the protein corona formation is discussed through the molecular dynamics simulations. A multiscale simulation... 

    Nanoparticle Translocation Across a Lipid Bilayer:An Investigation into Size and Shape

    , M.Sc. Thesis Sharif University of Technology Shadmani, Peyman (Author) ; Naghdabadi, Reza (Supervisor) ; Montazeri Hedesh, Abbas (Co-Advisor)
    In recent years, application of nanotechnology in medicine is growing rapidly, specially, in the area of drug delivery. One of most import applications of nanotechnology is the using of nanoparticles as a carrier in targeted drug delivery systems. Simulation of drug delivery and prediction of drug release are developing in experimental and industrial areas. Mathematical modeling is used in drug delivery systems because they are time and cost saving and also can be used to predict drug behavior. The aim of this research, is to provide a framework for designing nano drug carriers. To this end, uptake of nanoparticles into different types of cells with different characteristics, in different... 

    Simulation of Surface Chemical Reactions in Bosch Process for a Polymer Film and Investigation of Etching Quality

    , M.Sc. Thesis Sharif University of Technology Montazeri Shahtoori, Abdolsamad (Author) ; Saeedi, Mohammad Saeed (Supervisor)
    Deep reactive ion etching is one of the most used techniques for manufacturing micro-structures. The most popular silicon DRIE technique is Bosch process. Ability to manufacture high aspect ratio features made Bosch process the main technique for developing micro-electromechanical devices. Dry etching is a combination of physical and chemical processes. The chemical processes play a very important role due to their speed of material removing and also due to their high selectivity. Also chemical processes are responsible for development of passive resist layer on the surface. On the other hand, if not controlled properly it can reduce anisotropy, resulting in a low quality etch. In this... 

    The Effect of Different SLS Parameters on the Density of Polymer-Metal Parts

    , M.Sc. Thesis Sharif University of Technology Montazeri, Ali (Author) ; Movahhedi, Mohammad Reza (Supervisor)
    Selective Laser Sintering (SLS) is one of the powder-based Additive Manufacturing (AM) technology in which parts built by CO2 laser. In this research work, Titanium-PMMA-Stearic Acid powders are mixed together to produce parts by Indirect Metal Laser Sintering (IMLS) method. The optimum process parameters such as energy density, Percentage composition of Titanium-PMMA and Scan Sintering are obtained by adopting the Taguchi method for getting the maximum density and minimum porosity. Experiments are planned by Taguchi’s Mix-L8 orthogonal array. According to the results obtained from this study, the percentage of combination Ti-PMMA and Energy density, respectively, are a major parameters that... 

    Synthesis and Characterization of Zeolitic Imidazolate Framework-8 as a Carrier for Gene Therapy Applications

    , M.Sc. Thesis Sharif University of Technology Montazeri, Farzad (Author) ; Simchi, Abdolreza (Supervisor) ; Behmanesh, Mehrdad (Co-Supervisor)
    Advances in genetics and biology have led to the ability to produce therapeutic genes and modify defective genes in patients' genomes, resulting in a solution to many genetic diseases. Many genetic diseases can be overcome through gene therapy by transferring therapeutic genes into the cell nucleus. However, researchers have not yet been able to develop a safe, high-efficiency carrier for the transfer of genes to the target cell, and this has become a bottleneck for the clinical applications of gene therapy. In this study, the ZIF-8 organic-metallic framework was used as a new vector for the transfer of therapeutic genes to target cells. For this purpose, ZIF-8 was synthesized by a... 

    Kinetics of Adsorption of DBT Sulfur Containing Compound of Gasoline via Nanostructured Adsorbent

    , M.Sc. Thesis Sharif University of Technology Montazeri, Mohammad (Author) ; Sadrnezhad, Khatiboleslam (Supervisor)
    Based on the new standards, less than 10 ppm sulfur is allowed for the automotive fuels. This has led researchers to try improving the present conventional methods as well as seeking alternative routes for refinement of the petroleum products so much to comply with the requirements. Since thiophenic fragments such as dibenzothiophene (DBT) are the most durable sulfur compounds in the current hydrodisulfurization method, many studies have been conducted over recent years on how to remove these compounds. In this thesis, the desulfurization of dibenzothiophene from gasoline via adsorption method was studied. In order to carry out the adsorption process, a nanocomposite of graphitic-carbon... 

    Controller Design for Nonlinear fractional Order Systems in the Presence of Input and Output Constraints

    , M.Sc. Thesis Sharif University of Technology Montazeri, Jalil (Author) ; Shahrokhi, Mohammad (Supervisor)
    The purpose of this thesis is design of an adaptive tracking control for input-quantized strict-feedback fractional order nonlinear systems with unknown dynamics and asymmetric time-varying output constraints. The controller design is achieved by using a hysteretic quantizer to avoid chattering and not needing the quantization parameters. The fuzzy logic method has been used to solve the problem of unknown dynamics. Also, due to the asymmetric time-varying output constraints, the Barrier Lyapunov function has been used. In this thesis, less restrictive assumptions have been considered than the work performed in previous researches.By utilizing the adaptive backstepping approach and based on... 

    Experimental Study of Effect of Nano-graphen Oxide on Methane Hydrate Formation Rate and Storage Capacity

    , M.Sc. Thesis Sharif University of Technology Montazeri, Vahab (Author) ; Baghalha, Morteza (Supervisor) ; Ramazani, Ahmad (Supervisor) ; Zarenezhad, Bahman (Co-Advisor)
    According to the importance of conversion and transmission of energy, and introduction of hydrate formation process as an alternative method, in this study, the nano-graphene oxide is used to increase the rate if methane gas hydrates formation. The experiments were performed at different concentrations of 30 to 70 ppm and the results were compared with pure water. The effect of temperature and pressure on hydrate formation at temperatures of 1 and 2˚C and pressures of 48 and 53 bar were studied. And it was found that nano-graphene oxide can be used to accelerate the methane hydrates formation. The effect of ultrasonic on methane hydrate formation has been studied that it was found that the... 

    Application of Multiscale methods for Modeling Spatial Heterogeneity in Complex Reservoirs

    , M.Sc. Thesis Sharif University of Technology Hajizadeh Mobaraki, Alireza (Author) ; Farhadpour, Farhad A (Supervisor) ; Sayf Kordi, Ali Akbar (Supervisor)
    Underground reservoirs are highly complicated due to the presence of spatial heterogeneities at length scales that span from micrometer in pore structure of the rocks to kilometer in the reservoir models. While large-scale flow units need to be characterized using seismic and well data, detailed displacements of fluids in pore space need to be modeled using thin section analysis and pore network modeling. It is therefore necessary to adopt a multi-scale approach to reservoir description to make best use of all the available data that vary over several orders of magnitude, from micro-scale in pore structure to field scale in reservoir flow models. In this thesis, an integrated framework for...