Results 271 to 280 of about 190,075 (318)
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Digest of Papers COMPCON Spring 1992, 2003
The author introduces a new way to organize memory elements into scan chains for built-in self-testable data path logic. The goal of the procedure is to minimize the hardware overhead and performance impact associated with pseudo-random built-in self-test (PR-BIST) techniques by organizing the memory elements such that some of the logic required for ...
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The author introduces a new way to organize memory elements into scan chains for built-in self-testable data path logic. The goal of the procedure is to minimize the hardware overhead and performance impact associated with pseudo-random built-in self-test (PR-BIST) techniques by organizing the memory elements such that some of the logic required for ...
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Significance Tests for Saturated Orthogonal Arrays
Journal of Quality Technology, 1991Experimental designs used in industry often allow no degrees of freedom for the estimation of error. Nevertheless, analysis of variance results can (if used properly) be used to determine which factors are significant. We give a back-of-the-envelope cal..
Kenneth N. Berk, Richard R. Picard
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Orthogonal Array and Virtualization as a Method for Configuration Testing Improvement
2009 First IEEE Eastern European Conference on the Engineering of Computer Based Systems, 2009Combinatorial testing methods are often applied in cases of configuration testing. Good practice points to the simultaneous application of combinatorial testing and virtualization. Virtualization, in the process of testing, is based on setting the necessary environment to multiple virtual machines, which run on one computer or in smaller groups of ...
Snezana Popovic, Ljubomir Lazic
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Orthogonality Tests in Linear Models
Oxford Bulletin of Economics and Statistics, 1997This paper considers several tests of orthogonality conditions in linear models where stochastic errors may be heteroskedastic or autocorrelated. It is shown that these tests can be performed with Wald statistics obtained from simple auxiliary regressions.
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An assessment of the orthogonal astigmatism test for the subjective measurement of astigmatism
Ophthalmic and Physiological Optics, 2002The orthogonal astigmatism test (OAT) is a newly developed method for assessing ocular astigmatism. This study compares the OAT with the Jackson crossed‐cylinder (JCC), Raubitschek arrow (RA) and the fan and block (FB) (fan chart). Fifty emmetropes or corrected spherical ametropes (<0.25 DC of astigmatism) were recruited, with a visual acuity of at ...
Paul J, Murphy +2 more
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Constant envelope pseudo orthogonal excitations for ultrasound testing
2013 18th International Conference on Digital Signal Processing (DSP), 2013Various techniques to generate pseudo-orthogonal excitations for Ultrasonic Non Destructive Testing (UT-NDT) are discussed, with the constraint that they deliver constant-envelope waveforms and they are FM based. Pseudo-orthogonal excitations enable multiple Tx probes to be operated simultaneously so that many measurements can be taken at once.
Salvatore Caporale +3 more
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Experimental tests with orthogonal transmission
Proceedings of the Institution of Electrical Engineers, 1968Propagation tests indicate that the skywave field strength from a medium-frequency broadcasting transmitter can be reduced by 16dB on paths to the north at midlatitudes in the southern hemisphere, when vertically polarised transmission is replaced by orthogonal transmission.
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Testing the Principle of Orthogonality in Language Design (Abstract Only)
ACM SIGCHI Bulletin, 1989Formulating precise descriptions of human-computer interactions is a prerequisite for the principled design, implementation and evaluation of interactive systems. This paper reports an exercise in interaction specification using Foley and Van Dam's (1982) multilayered method of documenting the design of a user-computer interface.
Edward M. Bowden +2 more
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A new method testing the orthogonality of different protecting groups
Carbohydrate Research, 2015A new test was elaborated to identify a new set of orthogonal protecting groups. With the developed method eight different protecting groups were tested under various deprotection conditions and the complex reaction mixtures were analysed by HPLC. The developed method allows for quick identification of orthogonality using simple model structures.
Károly, Ágoston +3 more
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Orthogonal Frontiers and Alternative Mean‐Variance Efficiency Tests
The Journal of Finance, 1987ABSTRACTThis paper catalogues properties of minimum norm orthogonal portfolios: portfolios which minimize a quadratic objective function and have returns uncorrelated with those of a candidate portfolio that is not mean‐variance efficient. The analysis shows that the dollar versions of these portfolios correspond to estimators of zero beta rates based ...
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