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About 10,000 papers for “Parallel array”

Optical Parallel Array Logic System

Yoshiki Ichioka, Jun Tanida · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1989

The Optical Parallel Array Logic System (OPALS) is a parallel optical digital computing system using optical array logic as its operational basis. Its salient features are the capability of implementing fully 2-D parallel logical operation, parallel neighborhood operation, iterative processing, and programmability. In this paper, we represent optical array logic and realizable versions of OPALS&apos;s.<sup>1-4</sup> Then we briefly describe programming in optical array logic and the concept of pattern logic useful for space-variant processing with optical array logic.

Cited by 0

Parallel active mixing microdroplet array

Faten Kardous, Réda Yahiaoui, Jean‐François Manceau · HAL (Le Centre pour la Communication Scientifique Directe) · 2009

In the micro- and nano-fluidics field, the mixing of droplets is a difficult challenge. This function is usually achieved by mixing two or more continuous flows via their injection in the same micro-channel. This strategy may be further improved by the active mixing introduced by an additional energy source plugged into the system to create flow instabilities. For example, ultrasonic mixers using stationary wave patterns or surface acoustic waves (SAW) were developed in order to decrease the mixing time and to improve the homogeneity of continuous-flow mixtures. Some micro-devices using microchanels even permit to generate micro-drops of reagents and to coalesce them in a carrier continuous phase. An alternative approach to continuous microfluidic systems is the manipulation of discrete droplets. The electrowetting-based linear-array droplet mixer, for example, proves that microdroplets can be transported, merged and actively mixed using an electrostatic field. Acoustic field can also be used for that purpose, several examples have been presented using, for the most part, high frequency vibrations such as SAW devices. In this paper, we introduce a parallel microdroplet mixing strategy based on local acoustic field generation using low frequency vibrations. An active acoustic mixer array was designed and fabricated. This microfluidic device permits the creation in parallel of an active mixture in a matrix of 25 microdroplets that are localized on a surface. It was designed to avoid contamination between droplets while they are excited. Experiments showing the independent and active mixture of droplets will be presented.

Cited by 0

Parallel Sigma-Erasing Array Acceptors.

Akira Nakamura · 1979

Abstract : A parallel Sigma-erasing array acceptor (P Sigma-EAA) is introduced. It is proved that the class accepted by P Sigma-EEA's is exactly the context-free array languages. (Author)

Cited by 0

Massively parallel suffix array construction

Rovan, B, Korda, M · Research Portal (King's College London) · 1998

This paper considers the construction of the suffix array of a string on the MasPar MP-2 architecture. Suffix arrays are space-efficient variants of the suffix trees, a fundamental dictionary data structure that is the backbone of many string algorithms for pattern matching and textual information retreival. We adapt known PRAM techniques for implementation on the MasPar: bulletin boards, doubling techniques and sorting methods. Performance results are presented.

Cited by 0

Parallel Imaging with an Array

Greg Parker · Patrick Moore's practical astronomy series/˜The œPatrick Moore practical astronomy series · 2016

Cited by 0

ANDROX Parallel Image Array Processor

Phil Dunbar · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1988

A single board parallel processor designed for operations on images is described. The system is based on the Multiple Instruction, Multiple Data (MIMD) model with four independent signal processing nodes and a large global image memory. Image acquisition is provided for four simultaneous video inputs, and video output for color or monochrome display. Examples of the system&apos;s application for two dimensional FFTs, color transformations, and texture modeling are given.

Cited by 0

Optical parallel array logic system

Yoshiki Ichioka, Jun Tanida · 2005

A new optical-digital computing system called Optical Parallel Array Logic System (OPALS) is presented. OPALS is a fundamental processor of optical parallel digital computers. OPALS can execute optically various parallel neighborhood operations such as cellular logic as well as parallel logical operations for two-dimensional signals. The system has ability to perform iterative operations. OPALS is systemized, centering on the optical parallel logic method using image coding and optical correlation techniques. The mechanism of the optical parallel logical operations corresponds to that of array logic except for parallelism. This analogy leads to the concept of spatial array logic. The concept of spatial array logic plays an important role in designing the OPALS. A pure optical version of the OPALS is proposed.

Cited by 2

Parallel contextual array P systems

Somnath Bera, Linqiang Pan, Bosheng Song et al. · International Journal of Advances in Engineering Sciences and Applied Mathematics · 2018

Cited by 5