- Quantum-Dot Cellular Automata
- Advanced Memory and Neural Computing
- Quantum and electron transport phenomena
- Interconnection Networks and Systems
- Advancements in Semiconductor Devices and Circuit Design
- Semiconductor materials and devices
- Photonic and Optical Devices
- Parallel Computing and Optimization Techniques
- Molecular Junctions and Nanostructures
- Embedded Systems Design Techniques
- Supercapacitor Materials and Fabrication
- Plasmonic and Surface Plasmon Research
- Advanced biosensing and bioanalysis techniques
- Cellular Automata and Applications
- Semiconductor Quantum Structures and Devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic Crystals and Applications
- Nanowire Synthesis and Applications
- Quantum Computing Algorithms and Architecture
- Metaheuristic Optimization Algorithms Research
- Analog and Mixed-Signal Circuit Design
- Evolutionary Algorithms and Applications
- Graphene research and applications
- solar cell performance optimization
- Optical Coatings and Gratings
Islamic Azad University, Tehran
2011-2024
Islamic Azad University Central Tehran Branch
2015-2024
Islamic Azad University South Tehran Branch
2023
Institute for Research in Fundamental Sciences
2015-2022
Islamic Azad University, Science and Research Branch
2008-2010
DC motors are used in industry extensively due to their high reliability, low cost, simple control of speed and position, energy consumption compatibility with digital systems. There different methods for controlling the motors, mainly armature voltage or field control. In this paper, a separately excited motor is controlled by means self-tuning fuzzy PID method. Against classic controllers which [Formula: see text], text] values constant, determined specific speed, PID, varied variations....
Application of quantum-dot cellular automata (QCA) technology as an alternative to CMOS on the nanoscale has a promising future; QCA is interesting for building memory. The proposed design and simulation new memory cell structure based with minimum delay, area, complexity presented implement static random access (SRAM). This paper presents 16-bit x 32-bit SRAM in QCA. Since pipeline, this high operating speed. width designed implemented It ability conventional logic that can provide...
An all-optical Fredkin gate was proposed and designed. The is a reversible logic gate. For designing the structure we used three different optical nonlinear resonators. wide-bandwidth resonators do not have switching functionality. However, resonator modified to act as an switch in horizontal direction. final designed using four wide-band resonators, twelve sharp ring Simulation results show that maximum rise time for about 5 ps.
This paper presents the design, layout, and successful simulation of a 2 to 4 decoder, by five-inputs majority gate. decoder can be considered as module, which has fixed structure correct clocking. Therefore, Generalizing this provided only requires driver circuit, anyway select activate it. Decoder presented in paper, that implemented with five input gate, been designed minimum number cells, also acts pipeline. The is used moudular, implement n <sup...
Implementation of basic ternary logic gates is more complex than binary in quantum-dot cellular automata (QCA) technology. Several models have been presented for designing gates. Most these are different solutions and based on manual calculations. It seems that no simulation tool QCA (tQCA) has presented. Unlike previous works, this study an attempt to introduce alternative model the related software tQCA Prominent – such as Min gate, Max gate inverter proposed simulated newly designed...
Quantum-dot Cellular Automata (QCA) is a promising, emerging nanotechnology based on single electron effects in quantum dots and molecules. This paper presents the design, implementation simulation of elements principal standard Configurable Logic Block (CLB) Xilinx Field Programmable Gate Arrays (FPGA). The presented Look-Up Table (LUT) implemented with novel structure which has been allowed as frequently Read/Write operation occurs, also acts pipeline. decoders multiplexers are five-input...
This paper presents a high sensitive MEMS capacitive pressure sensor for biomedical applications. Two designs incorporating clamped and slotted diaphragm are implemented compared to realize the pressure-sensitive components. The has been designed measure pressures in range of 0 60 mmhg that is intraocular sensors. Intraocular sensors important detection treatment an incurable disease called glaucoma. formed using p++ silicon as biocompatible material. novelty this method relies on p++si...
In this paper, all-optical tunable filters based on two-dimensional photonic crystals with very small dimensions for optical telecommunication of WDM technology are designed and simulated. The structure is made air holes in a dielectric background. tuning done by changing resonant defect angle. channels obtained will be set wavelength range 1550 nm. Created at wavelengths 1550, 1551, 1552, 1565 (16 channels); the distance between adjacent 1 Design simulation filter RSOFT software. Quality...
Noise removal is a very important step in an iris segmentation process. Iris regions are usually occluded by Eyelid and eyelashes. For overcome this problem, we present robust method for eyelid eyelashes based on wavelet transform. Our approach follows two main stages. First, removed using Then eyelids boundary modeled with parabolic curve. Second, Eyelashes Hough Afterwards segmented neural network. Experimental results set of 756 images show that the accuracy proposed leading to accurate...
Abstract Background and Aim Coronavirus is an infectious disease that now known as epidemic, early accurate diagnosis helps the patient receive more care. The aim of this study to investigate Covid‐19 using blood tests multilayer perceptron neural network affective factors in improving preventing Covid‐19. Methods This cross‐sectional was performed on 200 patients referred Sina Hospital, Tehran, Iran, who were confirmed cases by computerized tomography‐scan analysis between 2 March 2020 5...