Results 161 to 170 of about 5,789 (211)

Clocking and Cell Placement for QCA

2006 Sixth IEEE Conference on Nanotechnology, 2006
In this paper we propose a novel two-dimensional clocking and timing scheme for systems which permit a reduction in the longest line length in each clocking zone. The proposed clocking schemes utilize logic propagation techniques which have been developed for systolic arrays.
Vankamamidi, V, OTTAVI, MARCO, Lombardi, F.   +2 more
openaire   +1 more source

FFT implementation using QCA

2012 19th IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2012), 2012
Quantum dot Cellular Automata (QCA) is an emerging nanotechnology paradigm that is currently being investigated as a possible CMOS substitute. It offers higher speed and lower area and power consumption than CMOS transistors. However, due to its intrinsic pipelined nature, QCA circuits suffer from serious throughput reductions due to feedback signals ...
AWAIS, MUHAMMAD, VACCA, MARCO, GRAZIANO, MARIAGRAZIA, MASERA, Guido   +3 more
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A review of QCA adders and metrics

2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2012
Quantum-dot Cellular Automata is a potential game changer for integrated circuit design and development. The still evolving technology promises very small, very fast and very low power computation. It differs from current integrated circuit technology in that on chip communication is relatively slow while logic operations are fast.
Weiqiang Liu 0001, Máire O'Neill, Earl E. Swartzlander Jr.   +2 more
openaire   +1 more source

Conservative QCA Gate (CQCA) for Designing Concurrently Testable Molecular QCA Circuits

2009 22nd International Conference on VLSI Design, 2009
Nanocircuits based on molecular QCA are prone to high error rates. In this paper, we present a novel conservative logic gate termed 'CQCA' (conservative QCA) to design concurrently testable circuits for molecular QCA.  In conservative logic gates, there would be an equal number of 1s in the output as there would be on the input.
Himanshu Thapliyal, Nagarajan Ranganathan   +1 more
openaire   +1 more source

QCA Circuits for Robust Coplanar Crossing

Journal of Electronic Testing, 2007
In this paper, different circuits of Quantum-dot Cellular Automata (QCA) are proposed for the so-called coplanar crossing. Coplanar crossing is one of the most interesting features of QCA because it allows for mono-layered interconnected circuits, whereas CMOS technology needs different levels of metalization.
Sanjukta Bhanja, Marco Ottavi, Fabrizio Lombardi, Salvatore Pontarelli   +3 more
openaire   +5 more sources

Quantitative coronary angiography (QCA) in interventional cardiology: Clinical application of QCA measurements

Progress in Cardiovascular Diseases, 1994
Q UANTITATIVE coronary angiography (QCA) has had a tremendous impact in the field of interventional cardiology. Because of its superior accuracy and objectivity, QCA has supplanted visual and hand-held caliper assessments of coronary arteriograms and has improved interobserver and intraobserver variability.
D P, Foley, J, Escaned, B H, Strauss, C, di Mario, J, Haase, D, Keane, W R, Hermans, B J, Rensing, P J, de Feyter, P W, Serruys   +9 more
openaire   +2 more sources

The QCA Package

2018
In the first chapter, we have briefly covered some of the basics in using R. This chapter presents the structure of the QCA package with its associated functions, complementing their explanation with an overview of the associated graphical user interface.
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Quad Countries Algorithm (QCA)

2012
This paper introduces an improved evolutionary algorithm based ontheImperialist Competitive Algorithm (ICA), called Quad Countries Algorithm (QCA). The Imperialist Competitive Algorithm is inspired by socio-political process of imperialistic competition in the real world and has shown its reliable performance in optimization problems.
Mohammad Amin Soltani-Sarvestani, Shahriar Lotfi, Fatemeh Ramezani   +2 more
openaire   +1 more source

QCA-LG: A tool for the automatic layout generation of QCA combinational circuits

Norchip 2007, 2007
Quantum-dot Cellular Automata (QCA) is a promising successor for CMOS transistor technology, while allowing the implementation of logic circuits using quantum devices, such as quantum dots or single domain nano magnets, a new set of tools must be developed to assist the design and implementation process.
Tiago Teodosio, Leonel Sousa
openaire   +1 more source

Array Dividers in QCA

2019
In this chapter, we present design and implementation of iterative computational unit such as binary divider using QCA. Different types of dividers are introduced. Specifically, non-restoring divider is discussed that realized by iterative cellular arrays for parallel divisions. Performance metrics of different existing dividers are analyzed.
Trailokya Nath Sasamal, Ashutosh Kumar Singh, Anand Mohan   +2 more
openaire   +1 more source