Results 281 to 290 of about 45,289 (325)
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System Level Hardening by Computing with Matrices
2010 13th Euromicro Conference on Digital System Design: Architectures, Methods and Tools, 2010Continuous advances in transistor manufacturing have enabled technology scaling along the years, sustaining Moore's law. As transistors sizes rapidly shrink, and voltage scales, the amount of charge in a node also rapidly decreases. A particle hitting the core will probably cause a transient fault to spam over several clock cycles.
Ronaldo Rodrigues Ferreira +2 more
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32-bit radiation-hardened computers for space
1998 IEEE Aerospace Conference Proceedings (Cat. No.98TH8339), 2002Over the past 11 years, the Air Force Research Laboratory (AFRL), Phillips Research Center (formerly Phillips Laboratory) has championed the development of microprocessors and computers for United States Air Force (USAF) space and strategic missile application.
J. Nedeau +4 more
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Correction for beam hardening in computed tomography
Physics in Medicine & Biology, 1979We investigate how one can estimate from the total attenuation, p, of a polyenergetic X-ray beam what the total attenuation, m, of a monoenergetic beam would have been along the same ray. We find that for beams with typical diagnostic X-ray spectra passing through the human body one can find a simple function f such that f(p) is a sufficiently close ...
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Hardening functions for large scale distributed computations
Proceedings 19th International Conference on Data Engineering (Cat. No.03CH37405), 2004The past few years have seen the development of distributed computing platforms designed to utilize the spare processor cycles of a large number of personal computers attached to the Internet in an effort to generate levels of computing power normally achieved only with expensive supercomputers.
D. Szajda, B. Lawson, J. Owen
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Beam Hardening Corrections in Quantitative Computed Tomography
AIP Conference Proceedings, 2007Volumetric computed tomography (VCT) is the emerging 3D NDE inspection technique that gives highest throughput and better image quality. Industrial components in general demands higher x‐ray energy for inspection for which polychromatic x‐ray sources are used in common.
Venumadhav Vedula +3 more
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Computer simulaton of induction hardening
2001The computer simulation of electromagnetic, thermodynamic and microstructural transformations in treated work-piece is usually recommended for the exact definition of working parameters in process planning of the induction hardening processes. A special simulation program has been developed for the axially symmetric work-pieces.
Cajner, Franjo, Smoljan, Božo
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A beam-hardening correction using dual-energy computed tomography
Physics in Medicine and Biology, 1985The problems associated with beam hardening in X-ray transmission computed tomography (CT) have been described by Brooks and DiChiro (1976). These include the introduction of non-linear artefacts in CT images with corresponding errors of as high as 10% in CT measurements of the linear attenuation coefficient, thus severely limiting the use of CT in ...
A J, Coleman, M, Sinclair
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Electron beam surface hardening utilizing computer control
Journal of Heat Treating, 1983Computer Controlled Electron Beam Machines, which are capable of precise beam placement and heat input, provide a means for localized surface hardening of steel. Minimal heat input to parts, which are selfquenched, reduces part distortion and eliminates post processing.
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Computed tomography: beam hardening and environmental density artifact.
Radiology, 1983Phantoms designed to simulate cysts or avascular masses and other material encountered in computed tomographic (CT) body and head scanning were used to evaluate the effect of beam hardening in a GE CT/T 8800 scanner. The phantoms were scanned before and after the addition of iodinated contrast material to various compartments within the phantoms.
S W, Young, H H, Muller, W H, Marshall
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Computer process planning of induction hardening
2001Phases in setting up the induction hardening procedure have been discussed. For the exact definition of working parameters, computer simulation is recommended. For the axially symmetric work-pieces a special simulation program has been developed.
Cajner, Franjo, Landek, Darko
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