Consistency testing purpose

This property may not be possessed by many other approximate methods based on, e.g., mean field or semielassieal approaehes. Also, in low dimensional systems, the above property is not true for CMD, so to apply CMD to such systems is not consistent with spirit of the method (though perhaps still useful for testing purposes). 

Problems may also arise with respect to specificity when ELISAs are applied for trace residue analysis, because any compound whose molecule is in part identical with or closely similar to the antigenic determinant of the analyte can compete for antibody-binding sites. Therefore, immunochemical methods are valuable for screening and testing purposes but cannot be considered as definitive from a regulatory perspective. For legal enforcement use, these methods should be used as part of an analytical system that consists of additional methods capable of definitively identifying the compounds of interest. 

The consistency of the data can now be checked by plotting the initial value (c,) and the corrected value (c/c) in the same graph. Different weight factors are used if it is a priori known that some of the components are better calibrated than other ones. Furthermore, the weight factors can be used for testing purposes. The procedure presented above for a single-reaction case is easily extended to several simultaneous reactions with j . = y0i + 2 J, yt] [Pg.447]

A novel patch approach of sweat collection has been introduced recently for testing of drugs. Although not yet cleared for drug-testing purposes, the adhesive patch is approved for collecting perspiration, and may eventually prove to be a viable technique. The device consists of an adhesive layer on a 2 x 3-in. transparent film that adheres to the skin. The patch contains an adsorbent pad in its center that collects sweat as it exits the body. The device is intended to be worn for up to 2 weeks at a time, after which the collected sweat residue is removed by a simple extraction procedure. So far, the sweat patch has been effective in monitoring low levels of cocaine and heroin. 

The HV-module consists of transformer, voltage doubler, filtering network and feedback resistor chain, and is sealed so that no humidity can reach the components. If for any reason the feedback loop is interrupted, an over-voltage detection is activated and shuts down the instrument. For test purposes, it is necessary to disconnect (or remove) diode CR109. 

The purpose of the nondestructive control consists in detecting local modifications of the material parameters which, by their presence can endanger the quality of the half-finished or finished products. The electromagnetic nondestructive control permits to render evident surface and subsurface discontinuities in the electroconductive material under test. The present tendency of this control is to pass from a qualitative evaluation (the presence or absence of the material discontinuities which give at the output of the control equipment a signal higher or at least equal to that coming from a standard discontinuity whose shape and severity has been prescribed by the product standards) to a quantitative one, which enables to locate as exactly as possible the discontinuity and to make predictions over its shape and severity. 

Industry has standardized procedures for the quantitative sensory assessment of the perceived olfactory intensity of indoor malodors and their relationship to the deodorant efficacy of air freshener products. Synthetic malodors are used for these evaluation purposes. These malodors should be hedonicaHy associated to the "real" malodor, and must be readily available and of consistent odor quaUty. These malodors should be tested in various concentrations and be representative of intensities experienced under normal domestic conditions. 

Rotating Beam Fatigue Test for Steel Cords. The purpose of this test method is to evaluate steel cord for pure bending fatigue (121). The test sample consists of a 3-mm diameter mbber embedded with steel cord. Different bending stress levels are appHed and the time to failure is recorded. The test stops at 1.44 million cycles. The fatigue limit is calculated from S—N (stress—number of cycles) curve. 

Routine tests are conducted on subsequent similar machines. The purpose of a routine lest is to ascertain that the machine is assembled correctly and will be able to withstand the appropriate high-voltage test, and will be in sound working eondition, both electrically and mechanically. As a minimum requirement these tests will consist of ... 

The purpose of testing of a bus system is to ensure its compliance with design parameters, material inputs and manufacturing consistency. 

The Pieknowledge Test was administered before using the teaching unit on chemical reactions. The Preknowledge Test consisted of three tasks with subtasks checking the stndents knowledge at the micro, submicro and symbolic types of representation, whereby the maximmn score obtainable was 27. Stndents spent 25 minutes in taking the test. Details of the tasks purposes and conceptions can be obtained from the anthors. 

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