Results 251 to 260 of about 6,359,946 (309)
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Systematic Error in Computerized Pachymetry
Ophthalmologica, 1993In a polycentric study, the influence of some of the most common variables capable of influencing the reliability of prekeratotomy pachymetry has been evaluated. The fluctuation in a sequence of measurements from the same point on the cornea, with the patient in different positions (orthostatic and clinostatic), during progressive drying of the ...
C A, Stucchi +4 more
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Journal of Quality Technology, 1981
Nature, origin, and treatment of systematic errors in measurements and calibrations are discussed. It is shown how systematic errors can vary, how random errors under one set of conditions will become systematic errors under another set of conditions an..
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Nature, origin, and treatment of systematic errors in measurements and calibrations are discussed. It is shown how systematic errors can vary, how random errors under one set of conditions will become systematic errors under another set of conditions an..
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Systematic error of diode thermometer
Review of Scientific Instruments, 2009Semiconductor diodes are often used for measuring temperatures. The forward voltage across a diode decreases, approximately linearly, with the increase in temperature. The applied method is mainly the simplest one. A constant direct current flows through the diode, and voltage is measured at diode terminals.
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Systematic errors in nulling interferometers
Applied Optics, 2004Nulling interferometers combine on-axis suppression with high angular resolution, making them ideal instruments for the direct detection of faint planets close to their parent star. Analysis is developed to show that it is systematic errors, resulting from fluctuations in the null depth, that drive the instrument performance. A second-order combination
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2019
Systematic errors bias measurements. Obviously, cheating is a biasing factor. Answer copying is a type of cheating, which can be detected by answer-copying indices. Satisficing is responding to items with less than optimal efforts. It is detectable by building instructional manipulation checks or bogus items into the test. A response style is a typical
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Systematic errors bias measurements. Obviously, cheating is a biasing factor. Answer copying is a type of cheating, which can be detected by answer-copying indices. Satisficing is responding to items with less than optimal efforts. It is detectable by building instructional manipulation checks or bogus items into the test. A response style is a typical
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Errors of observation and systematic errors
Contemporary Physics, 1966Summary Methods of displaying results of repeated measurements, and choice of measures of scatter are considered. It is argued that graphical displays and a 50 per cent probability as basis for expression of errors are simpler than, and in many cases as useful as, any other method.
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2006
Abstract : Even when executing routine procedures with relatively simple devices, people make nonrandom errors. Consequences range from the trivial to the fatal, with Navy personnel often operating at the more extreme end of this range. This problem has received surprisingly little attention from cognitive psychologists.
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Abstract : Even when executing routine procedures with relatively simple devices, people make nonrandom errors. Consequences range from the trivial to the fatal, with Navy personnel often operating at the more extreme end of this range. This problem has received surprisingly little attention from cognitive psychologists.
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Systematic Errors of MiniBooNE
AIP Conference Proceedings, 2008Modern neutrino oscillation experiments use a ‘near to far’ ratio to observe oscillation; many systematic errors cancel in a ratio between the near detector's unoscillated event sample and the far detector's oscillated one. Similarly, MiniBooNE uses a νe to νμ ratio, which reduces any common uncertainty in both samples.
K. B. M. Mahn +3 more
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1977
There are two main categories of error: systematic and statistical. Systematic errors are due to defective apparatus or improper adjustment or incorrect operation; these faults give rise to a difference between the measuring result and the true value, as theoretically predicted or as determined by means of a better apparatus, properly adjusted and ...
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There are two main categories of error: systematic and statistical. Systematic errors are due to defective apparatus or improper adjustment or incorrect operation; these faults give rise to a difference between the measuring result and the true value, as theoretically predicted or as determined by means of a better apparatus, properly adjusted and ...
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Systematic errors in physical constants
Physics Today, 1961Physicists today make very little use of statistical techniques. There was good reason for the minor role so long accorded the statistical evaluation of the errors in physical constants. When two laboratories make independent determinations, each may attach to its “best” value a ± sign followed by an estimate s of the error.
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