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Open Access Article
1 - Novel Defect Terminolgy Beside Evaluation And Design Fault Tolerant Logic Gates In Quantum-Dot Cellular Automata
Mehrdad Poorhosseini -
Open Access Article
2 - Fault Tolerant Design of QCA Binary Wire
Mojdeh Mahdavi Mohammad Amin Amiri -
Open Access Article
3 - A New Coplanar Full Adder/Subtractor in Quantum-Dot Cellular Automata Technology
Mohsen Vahabi Amir Sabbagh Molahosseini -
Open Access Article
4 - High Level Modeling of AES in QCA Technology
Mojdeh Mahdavi Mohammad Amin Amiri -
Open Access Article
5 - Designing Ultra-low-power Cardiac Pacemaker with Quantum Cellular Automation Technology
Mojdeh Mahdavi Mohammad Amin Amiri -
Open Access Article
6 - Urban expansion and physical development simulation using fuzzy cellular automata (FCA).Case Study: Ahwaz City
Saaid zangane shahrAki Morteza omidi Pour yousef tazesh ateena moenmehrThis study is proposed a model of urban expansion based on cellular automata principles and fuzzy logic approach. The most effective indicators were first selected using the DEMATEL method. The weight of each indicator was then obtained with the help of the prepared str MoreThis study is proposed a model of urban expansion based on cellular automata principles and fuzzy logic approach. The most effective indicators were first selected using the DEMATEL method. The weight of each indicator was then obtained with the help of the prepared structure using the Analytic Network Process (ANP). Three satellite images of 2003, 2007, and 2013 were used to simulate urban growth of Ahvaz in the year 2020. The selected base year was 2003. After performing preprocessing operations, the images were classified using the maximum likelihood method. The combination of fuzzy logic and the classic cellular automata model was made operational by defining the transition rules using the degrees of fuzzy membership. The Kappa index was employed in two stages to study accuracy of the images. The images of the base year were first classified and their accuracy was examined, and the accuracy of the simulated images with respect to reality was also investigated for the year 2007 and then simulation of the images of the other years was performed. Since the degree of accuracy of the model was considered acceptable, the linear regression model and the matrix of transition probabilities were employed for simulation in 2020. Results indicated the model enjoyed acceptable accuracy. It also yielded more realistic results in urban simulations compared to the classic CA method. Moreover, and growth and development of Ahvaz in different periods did not take place in any specific direction but rather was completely irregular and occurred in all directions. Manuscript profile -
Open Access Article
7 - Predicting the growth and development of Bandar-e-Gaz Town Using Fuzzy Cellular Automata (FCA)
دنیائی Donyaiiautomated cell-based models (CAs) are defined based on two-value logic and in a non-flexible manner. Combining fuzzy logic with the classical cellular automata model makes it possible to model the uncertainty governing the urban development simulation process by definin Moreautomated cell-based models (CAs) are defined based on two-value logic and in a non-flexible manner. Combining fuzzy logic with the classical cellular automata model makes it possible to model the uncertainty governing the urban development simulation process by defining the transition rules using the degrees of fuzzy membership. This study presented the model of urban expansion based on the fuzzy cellular automata. The most effective indicators were first selected using the DEMATEL method. The weight of each indicator was then obtained using the Analytic Network Process (ANP). Three satellite images from 2012, 2014 and 2019 were used to simulate urban development in the study area (Bandar-e-Gaz Town) for the year 2100.After preprocessing; the images were classified for all three periods by the maximum likelihood method. The Kappa index was used to check the accuracy of the maps in two steps. The images of the base year were first classified and their accuracy was examined, and then the simulation of the images of the other years was performed and their accuracy again was examined. Since the degree of accuracy of the model was considered acceptable, the linear regression model and matrix of transition probabilities were used for simulation. The results of this study showed that the proposed model is acceptable so that it works better in urban simulation than the classical model of CA. Also, the growth and development of Bandar-e-Gaz town in different periods has been more in the eastern and western parts. Manuscript profile -
Open Access Article
8 - Introducing an Innovative D Flip-Flop for Designing Quaternary QCA Register
Alireza Navidi Reza Sabbaghi-Nadooshan Massoud DoustiTaking advantage of advances in Nanotechnology, the quantum-dot cellular automata (QCA) has overcome many limitations that complementary metal-oxide-semiconductor (CMOS) had been confronted. Undesirable characteristics such as too many leakage currents limit the CMOS de MoreTaking advantage of advances in Nanotechnology, the quantum-dot cellular automata (QCA) has overcome many limitations that complementary metal-oxide-semiconductor (CMOS) had been confronted. Undesirable characteristics such as too many leakage currents limit the CMOS designs in nano dimensions. The idea of designing multiple-valued logic (MVL) systems rather than standard binary has gotten attractive to many designers. The application of MVL in the design of digital circuits offers so many advantages over traditional methods. D flip-flop is a primary sequential circuit in any register. In this paper, a novel quaternary D flip-flop based on introducing quaternary QCA (QQCA) is presented. The structure of our quaternary model is clarified. Also, we have proposed a 4-qubits register by utilizing the presented quaternary D flip-flop. Both circuits got simulated and evaluated by QCASim (quaternary edition). QCASim can illustrate the simulation result in a truth table and a waveform format. Our work got compared with other published works. The simulation results show that our proposed circuit is efficient in terms of latency and energy consumption. Manuscript profile -
Open Access Article
9 - Computational Circuit Design Using a New Seven-Input Majority Gate in Quantum-dot Cellular Automata
Farzaneh Jahanshahi Javaran Somayyeh Jafarali Jassbi Hossein Khademolhosseini Razieh FarazkishThe quantum-dot cellular automata (QCA) technology is a computational technology used to build nano-scale circuits. When the dimensions of the components decrease, the sensitivity of the circuit increases and the quantum circuits become more vulnerable to the occurrence MoreThe quantum-dot cellular automata (QCA) technology is a computational technology used to build nano-scale circuits. When the dimensions of the components decrease, the sensitivity of the circuit increases and the quantum circuits become more vulnerable to the occurrence of defects and radiation in the environment. The two major gates in this technology are inverter and majority gates, and most circuits are built based on these two gates. This paper aimed to design a seven-input majority gate in quantum-dot cellular automata by imposing low overhead on the circuit. Using a majority gate with more inputs reduces cell count, latency, and complexity in the QCA circuit. However, perhaps the need to use the seven-input gate is not yet felt we then design and implement a number of logic circuits. A new 7-input majority gate is designed in this paper, with 19 cells. The proposed structure is single-layer with an occupied area of 24564 nm2 that produces the correct output in one clock phase, then a four-input AND gate, a four-input OR gate, a two-input XOR gate, a two-input XNOR, a three-input XOR gate and a full adder are implemented using the designed seven-input gate. Including all multi-bit full adders, using the proposed seven-input gate. The proposed full adder is designed by the seven-input majority gate proposed and a fault-tolerant three-input majority gate. Therefore, it can be said that the designed full adder is somewhat tolerable, that means, it is somewhat tolerable against the fault that occur in this technology. QCAPro software is used to analyze the energy consumption of the recommended structure. Then, the circuit performance is evaluated using QCADesigner 2.0.3 simulator software for quantum-dot cellular automata. Manuscript profile -
Open Access Article
10 - Designing a New Gate-Diffusion Input in Quantum-Dot Cellular Automata Technology
Hamidreza Sadrarhamii Sayed Mohammadali Zanjani Mehdi Dolatshahi Behrang BarekatainQuantum-dot cellular automata (QCA) is a modern technology, which has higher speed, lower power consumption, higher density, and lower complexity than conventional technologies, such as CMOS. Moreover, the gate diffusion input (GDI) technique has been successful in redu MoreQuantum-dot cellular automata (QCA) is a modern technology, which has higher speed, lower power consumption, higher density, and lower complexity than conventional technologies, such as CMOS. Moreover, the gate diffusion input (GDI) technique has been successful in reducing complexity, area, and energy consumption in low-power circuit designs. In this technique, a wide range of complex logic functions can be implemented using only two transistors as the main block. In this study, a QCA-based GDI block is proposed using only 11 cells as a standard design unit that can be used to implement basic functions such as AND, OR, MUX, BUFFER, NOT and XOR in digital circuits. QCADesigner simulations of the functions in 18 nm technology indicate the superior performance of the proposed block with only one clock cycle delay in performing the operations. Moreover, the power consumption analysis of the designed circuits is performed using QCADesigner. The advantages of the proposed circuit compared to previous designs are 31% reduction in cell count, 50% smaller surface area, and 17% reduction in total energy loss. Manuscript profile -
Open Access Article
11 - A New Design for Two-input XOR Gate in Quantum-dot Cellular Automata
Hossein Khademolhosseini Yaser Nemati -
Open Access Article
12 - Design and Analysis of a Fault Tolerant 3-Input Majority Gate in Quantum-dot Cellular Automata
Somayyeh Jafarali Jassbi Farzaneh Jahanshahi Javaran Hossein Khademolhosseini Amir Sabbagh Molahosseini -
Open Access Article
13 - Designing and Implementing a Fast and Robust Full-Adder in Quantum-Dot Cellular Automata (QCA) Technology
Hojat-allah Bandani Sousan Mohammad Mosleh Saeed Setayeshi -
Open Access Article
14 - New Fault-Tolerant Majority Gate for Quantum Dots Cellular Automata
Razieh Farazkish -
Open Access Article
15 - New Approach to Design and Implementation XOR Gate in QCA Technology
Somayeh Aghababaei Samira Sayedsalehi -
Open Access Article
16 - New Approach to Decreasing the Number of Quantum Dot Cells in QCA Inverter
Razieh Farazkish -
Open Access Article
17 - Fault-Tolerant Techniques for Quantum-dot Cellular Automata Circuits and Systems
Razieh Farazkish Mani Zarei -
Open Access Article
18 - Design of Fault-Tolerant XOR/XNOR Gate Using Fault-Tolerant NNI Gate
Fatemeh Kiayi Behnaz Gharekhanlou Alireza Kashaninya -
Open Access Article
19 - Design and Implementation of Tile-shaped Fault-tolerant XOR/XNOR Gates Based on Intercellular Interactions
Fatemeh Kiayi Behnaz Gharekhanlou Alireza Kashaninya -
Open Access Article
20 - Removing High Density Impulse Noise Via a Novel Two Phase Method Using Fuzzy Cellular Automata
Mohammad Mehdi Piroozmandan Fardad Farokhi Kaveh Kangarloo -
Open Access Article
21 - A Smart Four-Input Minority Gate Based on QCA Technology
Samaneh-Sadat Hashemipour Keivan Navi -
Open Access Article
22 - Edge Detection Based On Nearest Neighbor Linear Cellular Automata Rules and Fuzzy Rule Based System
Rahil hosseini -
Open Access Article
23 - Comparison optimization Computational model between Cellular Automata and Genetic programming in dynamic response of guyed tower under vibration force
kaveh kumarciIn the telecommunication industry, guyed towers are one of the important structural subsystems. They support a variety of antenna systems at great heights to transmit radio, television and telephone signals over long distance, thus preserving them in events of natural d MoreIn the telecommunication industry, guyed towers are one of the important structural subsystems. They support a variety of antenna systems at great heights to transmit radio, television and telephone signals over long distance, thus preserving them in events of natural disasters such as earthquake is of high priority. Also, domes and transmission stations functions depend on transmitted information by guyed towers. In this paper, seismic behavior of guyed towers are studied. For that, one guyed tower in 9 clusters of guys is studied under earthquake force. This research was accomplished on the base of wind and earthquake forces and tower interaction to these forces. Here, the effect of earthquake force and tower response to seismic events are studied. At first, time history analysis is used in determination of towers vibration natural modes, then, under time- acceleration components of El-Centro earthquake, spectral analysis are accomplished. Analysis outputs are two parameters including frequency and maximum lateral displacement which are provided using ANSYS software. The results are used in comparing two different calculation models: genetic programming and cellular automata. Manuscript profile
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