Sharif Digital Repository

Numerical and experimental investigations for design of a high performance microhydro-kinetic turbine

Author

Zahedi Nejad, A.

Pub. Year

2017

Subjects

Duct. / Dynamic simulation. / Hydro-kinetic turbine. / Propeller test. / Computational fluid dynamics. / Computer simulation. / Computer software. / Degrees of freedom (mechanics) / Ducts. / Fabrication. / Kinetics. / Manufacture. / Numerical methods. / Propellers. / Rotation. / Turbines. / Turbomachine blades. / Water absorption. / Experimental investigations. / Experimental modeling. / Experimental models. / High speed rotation. / Kinetic turbines. / Numerical results. / Onedimensional flow. / User defined functions. / Turbine components.

Analytical comparison of various fiber-optic CDMA receiver structures

Author

Zahedi, S.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2000

Subjects

Channel interference. / Optical code division multiple access (CDMA) / Optical encoder and decoder. / Optical hard-limiter. / Poisson distribution.

Equations of motion of a ring-like robot with a flexible body and creeping-rolling motion

Author

Nejad, A. H.

Pub. Year

2010

Subjects

Flexibility body. / Dynamic analysis. / Kinematics. / Mechanical engineering. / Speed. / Constant speed. / Creeping motion. / Flexible bodies. / Input parameter. / Kinematics analysis. / Mass centers. / Motion simulations. / Quasi-static stability. / Reciprocating motion. / Rescue operations. / Robot arms. / Rolling motion. / Rough terrains. / Stationary state. / Equations of motion.

Essential design considerations for wireless multi-channel photoplethysmography system

Author

Kadhim, A. Y.

Pub. Year

2008

Subjects

Base module. / Bluetooth technology. / Communication subsystems. / Design considerations. / Host computers. / Input signal. / Multi-channel. / Photoplethysmography. / Sensor modules. / Transfer time. / Wireless transmissions. / Computer hardware description languages. / Firmware. / Microcontrollers. / Sensors. / Time division multiple access. / Time division multiplexing. / Bluetooth.

Sensor module for multi-channel wireless photoplethysmography system

Author

Kadhim, A. Y.

Pub. Year

2007

Subjects

Computer graphics. / Computer networks. / Research and development management. / Counter. / Interrupt. / Microcontroller. / PPG. / PWM. / Timer. / Sampling. / Photoplethysmography (PPG)

Design and development of a self-assembling protein nanoparticle displaying PfHAP2 antigenic determinants recognized by natural acquired antibodies

Author

Zahedi, F.

Publisher

Public Library of Science,

Pub. Year

2022

Subjects

Antibody. / Epitope. / Malaria vaccine. / Nanoparticle. / Protein. / Chemistry. / Human. / Malaria falciparum. / Antibodies. / Epitopes. / Humans. / Malaria. / Malaria Vaccines. / Malaria, Falciparum. / Nanoparticles. / Proteins.

System identification for characterization of the frequency response of an 'open-source' biomedical circuit

Author

Zahedi, E.

Pub. Year

2015

Subjects

System identification. / Biomedical engineering. / Frequency response. / Identification (control systems) / Photoplethysmography. / Religious buildings. / Reverse engineering. / Auto-regressive. / Biomedical circuits. / Exogenous input. / Frequency behavior. / Open-source components. / Pseudorandom signals. / Second orders. / System identification techniques. / Open systems.

Fabrication and characterization of core-shell electrospun fibrous mats containing medicinal herbs for wound healing and skin tissue engineering

Author

Zahedi, E.

Publisher

MDPI AG,

Pub. Year

2019

Subjects

Aloe vera extract. / Co-axial electrospinning. / Core-shell fiber. / Polysaccharide. / Wound healing. / Herbaceous agent. / Keratin. / Polycaprolactone. / Polymer. / Nanofiber. / Polyester. / Cell adhesion. / Cell growth. / Controlled study. / Cytotoxicity test. / Electron microscopy. / Electrospinning. / Hydrophilicity. / In vitro study. / Skinfold thickness. / Tensile strength. / Aloe. / Chemistry. / Drug effect. / Infrared spectroscopy. / Medicinal plant. / Procedures. / Scanning electron microscopy. / Tissue scaffold. / Chitosan. / Materials Testing. / Microscopy, Electron, Scanning. / Nanofibers. / Plants, Medicinal. / Polyesters. / Polymers. / Skin. / Spectroscopy, Fourier Transform Infrared. / Tensile Strength. / Tissue Engineering. / Tissue Scaffolds.

Investigation and modeling of the thermal conductivity of PP/clay nanocomposites and PP/MWCNT nanocomposites

Author

Shahryar Nejad, S.

Pub. Year

2010

Subjects

Polypropylene. / Melt-blending methods. / Nano clays. / PP matrix. / Blending. / Carbon nanotubes. / Thermal conductivity. / Thermoanalysis. / Thermoplastics. / Nanocomposites.

Spatial integration by a dielectric slab and its planar graphene-based counterpart

Author

Zangeneh Nejad, F.

Pub. Year

2017

Subjects

Analog computers. / Dielectric materials. / Fourier series. / Graphene. / Integration. / Signal processing. / Analog computation. / Dielectric slabs. / Mode excitation. / New approaches. / Planar graphene. / Reconfigurable. / Spatial integrations. / Transmission coefficients. / Electric excitation.

Optimal control of nonlinear dynamical systems using direct solution of neural network controllers

Author

Pourtakdoust, S. H.

Publisher

American Institute of Aeronautics and Astronautics Inc,

Pub. Year

2002

Subjects

Chaotic dynamics. / Grnn. / Neural networks. / Optimal control.

Ultrasonic-assisted cylindrical grinding of Alumina-zirconia ceramics

Author

Tawakoli, T.

Publisher

American Society of Mechanical Engineers (ASME),

Pub. Year

2013

Subjects

Aluminum-Zirconia ceramic. / Cylindrical plunge grinding. / Surface roughness. / Ultrasonic assisted grinding. / Alumina. / Ceramic materials. / Mechanical engineering. / Stochastic systems. / Ultrasonic effects. / Ultrasonic waves. / Zirconia. / Cylindrical grinding. / Optimized parameter. / Surface characteristics. / Ultrasonic vibration. / Ultrasonic-assisted grinding. / Workpiece materials. / Grinding (machining)

Evaluating the effect of using different sets of enrichment for FAs on fuel management optimization using CA

Author

Moghaddam, N. M.

Pub. Year

2011

Subjects

Computer codes. / Core calculations. / Core design. / Economic requirements. / Enrichment. / FA selection. / Finite number. / Fixed quantity. / Fuel assembly. / Fuel compositions. / Fuel management. / Fuel optimization. / Fuel quality. / MCNP code. / Nuclear fuel management. / Optimization process. / Power peaking factor. / Two parameter. / VVER-1000. / VVER-1000 reactor. / Cellular automata. / Design. / Fuels. / Nuclear energy. / Nuclear propulsion. / Pattern recognition systems. / Reactor cores. / Reactor shutdowns. / Optimization.

An age index for vascular system based on photoplethysmogram pulse contour analysis

Author

Chellappan, K.

Publisher

Springer Verlag,

Pub. Year

2008

Subjects

Biomedical engineering. / Ageing. / Cardiovascular. / Contour analysis. / Linear relationships. / Photo-plethysmogram. / Photoplethysmography (PPG) / Pulse wave. / Pulse-contour analysis. / Cardiovascular system.

A photon counting approach to the performance analysis of indoors wireless infrared CDMA networks

Author

Zahedi, S.

Pub. Year

2000

Risk management framework in Agile software development methodology

Author

Zahedi, M. H.

Publisher

Institute of Advanced Engineering and Science,

Pub. Year

2023

Subjects

Agile development. / Risk management. / Software assessment process. / Software development project. / Software project management. / Software quality.

Simulation of carbon dioxide direct air capture plant using potassium hydroxide aqueous Solution: Energy optimization and CO2 purity enhancement

Author

Zolfaghari, Z.

Pub. Year

2024

Subjects

Aqueous Solution. / DAC. / Direct Air Capture. / Energy Optimization. / Energy utilization. / Optimization. / Potassium hydroxide. / Process design. / Waste heat. / Air captures. / Direct air capture. / Energy optimization. / Energy-consumption. / Optimal design. / Optimal process. / Pinch analysis. / Solution energy. / Carbon dioxide.

Quick deployment of open-source hardware and software for a dual-channel biosignal recorder

Author

Zahedi, E.

Pub. Year

2013

Subjects

Electronic rapid prototyping. / Medical vital signs. / Optical sensors.

A new approach for touching cells segmentation

Author

Nasr Isfahani, S.

Pub. Year

2008

Subjects

Arsenic compounds. / Biomedical engineering. / Biophysics. / Boolean functions. / Image segmentation. / Separation. / Informatics. / Touching cells. / Cells.

Using sliding mode control to adjust drum level of a boiler unit with time varying parameters

Author

Moradi, H.

Pub. Year

2010

Subjects

Boiler unit. / Boiler units. / Control signal. / Drum Level. / Drum water level. / Economic operations. / Generator systems. / Input variables. / Linear model. / Mass rate. / Model parameters. / Model uncertainties. / Operating condition. / Output variables. / Parameter mismatches. / Sliding mode controller. / Stable control. / Time varying parameter. / Time varying parameters. / Boilers. / Computer simulation. / Controllers. / Sliding mode control. / Steam power plants. / Systems analysis. / Uncertainty analysis. / Water levels. / Boiler control.