Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Operational integrity, definition

Note that the constants must be defined equal to their numerical values (defined = is on the keyboard). These definitions must be above the integral you wish to solve. Mathcad operates top down. Mathcad produces the same value for the integral that we obtained from TableCurve. This calculation is redundant with the calculations already performed in this section to inboduce new software by solving a problem for which we already know the answer. [Pg.28]

Definite Integral The concept and derivation of the definite integral are completely different from those for the indefinite integral. These are by definition different types of operations. However, the formal operation J as it turns out treats the integrand in the same way for both. [Pg.447]

During operation, the filter eake builds up and is periodieally diseharged. The time taken to build up eake ean be estimated by integrating equation 4.87 but first it is neeessary to derive a relationship between eake thiekness and filtrate volume, viz. by definition... [Pg.113]

Whilst programmed eooling (i.e. operation at eonstant nueleation rate within the metastable zone) inereases the mean produet erystal size ef. natural eooling, is it the optimum in produeing the largest possible erystals The problem is to find the maximum of the integral of erystal growth over the bateh time. Thus beeause bateh operation is by definition transient, a funetional has to be maximized over time rather than just a funetion at some point in time. Jones (1972, 1974) addressed this problem by applieation of a partieular result in... [Pg.197]

At the same time, relying on model programs has its share of pitfalls, in large part because a PSM system cannot succeed unless it can be properly integrated into the management systems in place for other activities. By definition a model program reflects the specific needs, operations, and practices of a given company, all of which may be quite different from your own. [Pg.136]

It is noteworthy that dq(e,t) does not satisfy this relation, as equality [J,x, dq] = 2 C q dq+ll (the definition of an irreducible tensor operator) does not hold for it [23]. Integration in (7.18), performed over the spherical angles of vector e, may be completed up to an integral over the full rotational group due to the axial symmetry of the Hamiltonian relative to the field. This, together with (7.19), yields... [Pg.232]

A function/(x) starts with a number, x, performs mathematical operations, and produces another number, /. It transforms one number into another. A functional starts with a function, performs mathematical operations, and produces a number. It transforms an entire function into a single number. The simplest and most common example of a functional is a definite integral. The goal in Example 6.5 was to maximize the integral... [Pg.207]

In Sect. 2.7.2 the mathematical definition of a projection has been given. A projection is an operator which maps a multidimensional function on a subspace by means of an integration. [Pg.147]

We note that the definition of 8LN (see 5) implies that the only non-vanishing contributions to In start with 8LaiK We specify j = 2 and introduce an indistinguishability factor (N — 1) (because of the p2.. . Pjy integration, the particles 2, 3,.. ., N play the same role). Moreover, we insert in (A.39) the dynamical cluster expansion, giving the streaming operators in terms of the operators and from which the formulae (23) have been deduced. Finally, we use the well-known results ... [Pg.375]

Abstract The theoretical basis for the quantum time evolution of path integral centroid variables is described, as weU as the motivation for using these variables to study condensed phase quantum dynamics. The equihbrium centroid distribution is shown to be a well-defined distribution function in the canonical ensemble. A quantum mechanical quasi-density operator (QDO) can then be associated with each value of the distribution so that, upon the application of rigorous quantum mechanics, it can be used to provide an exact definition of both static and dynamical centroid variables. Various properties of the dynamical centroid variables can thus be defined and explored. Importantly, this perspective shows that the centroid constraint on the imaginary time paths introduces a non-stationarity in the equihbrium ensemble. This, in turn, can be proven to yield information on the correlations of spontaneous dynamical fluctuations. This exact formalism also leads to a derivation of Centroid Molecular Dynamics, as well as the basis for systematic improvements of that theory. [Pg.47]

Aeeording to Eq. (10), (x 0(Xc,Pc) x") is aphase spaee path integral representation for the operator 27t/iexp —pA, where all the paths run from x to x", but their eentroids are eonstrained to the values of Xc and po. Integration over the diagonal element, whieh corresponds to the trace operation, leads to the usual definition of the phase space centroid density multiplied by 2nH. In this review and in Refs. 9,10 this multiplicative factor is included in the definition of the centroid distribution function, pc (xc, pc). Equation (6) thus becomes equivalent to... [Pg.51]


See other pages where Operational integrity, definition is mentioned: [Pg.143]    [Pg.7]    [Pg.304]    [Pg.151]    [Pg.233]    [Pg.222]    [Pg.141]    [Pg.301]    [Pg.308]    [Pg.115]    [Pg.215]    [Pg.223]    [Pg.344]    [Pg.88]    [Pg.64]    [Pg.29]    [Pg.24]    [Pg.204]    [Pg.395]    [Pg.165]    [Pg.174]    [Pg.244]    [Pg.24]    [Pg.68]    [Pg.374]    [Pg.28]    [Pg.114]    [Pg.429]    [Pg.4]    [Pg.12]    [Pg.173]    [Pg.233]    [Pg.110]    [Pg.270]    [Pg.274]    [Pg.20]    [Pg.50]    [Pg.768]   
See also in sourсe #XX -- [ Pg.2583 ]




SEARCH



Integral operation

Integral operator

Integrals definite

Integrator operation

Operating definition

Operation definition

Operator, definition

© 2024 chempedia.info