Standardization definition

Metrologia International Committee of Weights and Measures (CIPM) Pavilion de Breteuil Parc de St. Cloud, Prance Includes articles on scientific metrology worldwide, improvements in measuring techniques and standards, definitions of units, and the activities of various bodies created by the International Metric Convention. 

Standard Definitions ofiTerms Relating to Manufacturing Carbon and Graphite ASTM Standard C 709-90, Vol. 15.01 American Society for Testing and Materials, Philadelphia, Pa., 1991, p. 189. 

Standard Definitions of Terms Relating to Activated Carbon... 

By substimting the definition of H [Eq. (1)] into Eq. (8), we regain Eq. (6). The first first-order differential equation in Eq. (8) becomes the standard definition of momentum, i.e.. Pi = miFi = niiVi, while the second turns into Eq. (6). A set of two first-order differential equations is often easier to solve than a single second-order differential equation. 

As indicated in Section 3.7.9, this definition of ReMR may be used to determine the limit of stable streamline flow. The transition value (R ur)c is approximately the same as for a Newtonian fluid, but there is some evidence that, for moderately shear-thinning fluids, streamline flow may persist to somewhat higher values. Putting n = 1 in equation 3,140 leads to the standard definition of the Reynolds number. 

The foundation of any efficient computer-assisted data analysis system is the creation and use of data standards. Data standards consist of standard data file names for each predefined file, standard data elements in each data file, standardized names for each data element, and standard definitions for each data element. 

In SEC/LALLS, the molecular weight measured at any instant is (M ). Thus the sample M can be calculated by the standard definition... 

The key to minimizing waste is, as in other industries, to design more precision into organic synthesis. Chemists use the concept of selectivity as a measure of how efficiently a synthesis is performed. The standard definition of selectivity is the yield of product divided by the amount of substrate converted, expressed as a percentage. Organic chemists also distinguish among other forms of selectivity ... 

For approximately 20% to 30% of people with schizophrenia, drug treatment is ineffective. A standard definition of treatment resistance includes patients who have persistent positive symptoms despite treatment with at least two different antipsychotics given at adequate doses (at least 600 chlorpro-mazine equivalents) for an adequate duration (4 to 6 weeks). In addition, patients must have a moderately severe illness as defined by rating instruments, and have a persistence of illness for at least 5 years.40 These patients are often highly symptomatic and require extensive periods of hospital care. 

Sepsis is a continuum of physiologic stages characterized by infection, systemic inflammation, and hypoperfusion with widespread tissue injury.1 The American College of Chest Physicians and the Society of Critical Care Medicine developed definitions to utilize for sepsis (Table 79—l).2 They provide physiologic parameters categorizing patients as having bacteremia, infection, systemic inflammatory response syndrome (SIRS), sepsis, severe sepsis, septic shock, or multiple-organ-dysfunction syndrome (MODS).2 Standardized definitions have been developed for infections in critically ill patients.3... 

Elizabeth Lloyd That you cannot give a full explanation of what s happening in the group without giving an account of the gradient, and, in fact, the difference in socioeconomic gradients - I wouldn t prefer to call them causal myself but that they are descriptors of the situation that you cannot take them away from the explanation and understand it in the same way. I said one explains the phenomena in terms of what types of entities and their properties and so I take that to be a standard definition of a reductionist or anti-reductionist position. 

Formally the unperturbed Hamiltonian is equivalent to the Hamiltonian of the hydrogen atom in constant homogenious electric field. Chaotic dynamics of hydrogen atom in constant electric field under the influence of time-periodic field was treated earlier (Berman et. al, 1985 Stevens and Sundaraml987). To treat nonlinear dynamics of this system under the influence of periodic perturbations we need to rewrite (1) in action-angle variables. Action can be found using its standard definition ... 

IUPAC. Standard Definitions of Terms Relating to Mass Spectrometry—Provisional Recommendations. 2006. Available at http //www.iupac.org/web/ins/2003-056-2-500. 

We now generalize the ideas illustrated earlier from 2 to n dimensions. Proofs of the following theorems may be found in Dantzig (1963). First a number of standard definitions are given. 

After reviewing several dictionaries, we have found this fairly standard definition of terrorism ... 

Note that a. B may reflect either kinetic or equilibrium isotope partitioning between phases A and B. As discussed in the previous chapter, a -B for Fe/ Fe ratios typically varies between 0.997 and 1.003 (Chapter lOA Beard and Johnson 2004). In general, we will describe isotopic fractionations using A. b, following standard definitions ... 

In this model, Fe isotope exchange is envisioned to most likely occur between soluble Fe(III) and Fe(II) components, such as Fe(III)-LFe(in) and Fe(II)-Lpe(n) (Beard et al. 2003a), although only the Fe(II)aq component is measured. If this model is valid, a critical issue is whether isotopic equilibrium may be attained between these soluble pools of Fe, despite the changing reservoir sizes and fluxes that occur through Equations (5)-(8). As noted in the previous chapter (Chapter 1OA Beard and Johnson 2004), attainment of isotopic equilibrium will depend upon the elemental residence time in an Fe pool relative to the time required for isotopic exchange. We can define the residence time for Fe(III)-L, for example, using standard definitions, as ... 

Price, P. Standard Definitions of Terms Relating to Mass Spectrometry. A Report From the Committee on Measurements and Standards of the ASMS. J. Am. Soc. Mass Spectrom. 1991,2, 336-348. 

Other Although not R D, it should prove beneficial for fuel cell developers to provide species tolerance specifications to fuel processor developers established by standard definition, determination methods, and measurement procedures. This would aid the fuel processor developer to develop products compatible with various fuel cell units. Of particular importance are sulfur and CO limits. 

ASTM E 6-88, Standard Definitions of Terms Relating to Methods of Mechanical Testing, Aimual Book of ASTM Standards (1989), Vol. 8.03, p. 672. 

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