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Minimal set

These must supplement the minimal set of experiments needed to determine the available parameters in the model-It should be emphasized here, and will be re-emphasized later, Chat it is important Co direct experiments of type (i) to determining Che available parameters of some specific model of Che porous medium. Much confusion has arisen in the past frcjci results reported simply as "effective diffusion coefficients", which cannot be extrapolated with any certainty to predict... [Pg.88]

Ihe one-electron orbitals are commonly called basis functions and often correspond to he atomic orbitals. We will label the basis functions with the Greek letters n, v, A and a. n the case of Equation (2.144) there are K basis functions and we should therefore xpect to derive a total of K molecular orbitals (although not all of these will necessarily 3e occupied by electrons). The smallest number of basis functions for a molecular system vill be that which can just accommodate all the electrons in the molecule. More sophisti- ated calculations use more basis functions than a minimal set. At the Hartree-Fock limit he energy of the system can be reduced no further by the addition of any more basis unctions however, it may be possible to lower the energy below the Hartree-Fock limit ay using a functional form of the wavefunction that is more extensive than the single Slater determinant. [Pg.76]

The result of the ETA is a Hst of combiaations of equipment and human failures that ate sufficient to result ia the accident (71). These combiaations of failures are known as minimal cut sets. Each minimal cut set is the smallest set of equipment and human failures that are sufficient to cause the accident if all the failures ia that minimal set exist simultaneously. Thus a minimal cut set is logically equivalent to the undesired accident stated ia terms of equipment failures and human errors. [Pg.83]

ICSUP/ umeric Tnaiion. on/ Pandc. AND OR INHIBIT/ None computer memory is limiting factor. Minimal cuLscls up to order 10 an n icd Ton down Boolean substitutioii Minimal cutsets/path Can determine minimal sets of intermediate gates ... [Pg.130]

The fundamental challenge of physics has always been the understanding of the phenomenologically observed complexity in nature using a minimal set of simple principles. This reductionist program has historically-and for obvious reasons-concentrated mostly on studies of comparatively simple systems, deliberately avoiding more complex descriptions and phenomena. [Pg.1]

While there are mairy variants of the basic, model, one can show that there is a well-defined minimal set of niles that define a lattice-gas system whose macroscopic behavior reproduces that predicted by the Navier-Stokes equations exactly. In other words, there is critical threshold of rule size and type that must be met before the continuum fluid l)cliavior is matched, and onec that threshold is reached the efficacy of the rule-set is no loner appreciably altered by additional rules respecting the required conservation laws and symmetries. [Pg.16]

The state variables are the minimal set of dependent variables that are needed in order to describe fully the state of the system. The output vector represents normally a subset of the state variables or combinations of them that are measured. For example, if we consider the dynamics of a distillation column, in order to describe the condition of the column at any point in time we need to know the prevailing temperature and concentrations at each tray (the state variables). On the other hand, typically very few variables are measured, e.g., the concentration at the top and bottom of the column, the temperature in a few trays and in some occasions the concentrations at a particular tray where a side stream is taken. In other words, for this case the observation matrix C will have zeros everywhere except in very few locations where there will be 1 s indicating which state variables are being measured. [Pg.12]

The controller setting is different depending on which error integral we minimize. Set point and disturbance inputs have different differential equations, and since the optimization calculation depends on the time-domain solution, the result will depend on the type of input. The closed-loop poles are the same, but the zeros, which affect the time-independent coefficients, are not. [Pg.107]

Depending on the oxidation conditions and its reactivity, the inhibitor InH and the formed radical In can participate in various reactions determining particular mechanisms of inhibited oxidation. Of the various mechanisms, one can distinguish 13 basic mechanisms, each of which is characterized by a minimal set of elementary steps and kinetic parameters [38,43 15], These mechanisms are described for the case of initiated chain oxidation when the initiation rate v = const, autoinitiation rate fc3[ROOH] -C vy and the concentration of dissolved dioxygen is sufficiently high for the efficient conversion of alkyl radicals into peroxyl radicals. The initiated oxidation of organic compounds includes the following steps (see Chapter 2). [Pg.492]

It should be noted that Table 14.1 presents the most simple variants of inhibitory mechanisms with a minimal set of basic reactions. In practice, the dependancies of F may be more complex. However, the function F allows the mechanism of the inhibitory action of antioxi-... [Pg.499]

Each CGTO can be considered as an approximation to a single Slater-type orbital (STO) with effective nuclear charge f (zeta). The composition of the basis set can therefore be described in terms of the number of such effective zeta values (or STOs) for each electron. A double-zeta (DZ) basis includes twice as many effective STOs per electron as a single-zeta minimal basis (MB) set, a triple-zeta (TZ) basis three times as many, and so forth. A popular choice, of so-called split-valence type, is to describe core electrons with a minimal set and valence electrons with a more flexible DZ (or higher) set. [Pg.712]

In this review we have chosen to focus on strategies for designing the templates and scaffolds used in library synthesis. Equally important is the selection of building blocks for library preparation. A number of powerful computational methods have been developed to select the minimal set of building blocks that maxi-... [Pg.77]

A client defines the type it expects of any other object it will use the minimal set of actions it must exhibit. An implementor of an object defines the type(s) she provides that set of actions she guarantees to meet now and through subsequent releases. This implementation can be used by the client if the provided type can be shown to conform to the expected one.1... [Pg.108]

Let us define the chemical components as the building blocks describing all the possible chemical species present in the system (Morel and Hering, 1993). The chemical components are the minimal set of atoms, species, or ions that may describe the entire attainable stoichiometry of the system. A desirable property is that these components be independent of each other, i.e., that they form an orthonormal set in composition space. [Pg.318]


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See also in sourсe #XX -- [ Pg.10 , Pg.14 , Pg.241 , Pg.265 , Pg.405 ]




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Basis set, minimal

Minimal basis set calculations

Minimal cut set

Minimal valence basis set

Minimal-basis-set wave function

Minimization Active Set Methods

Minimize Prime Anchor Sets

STO-3G minimal basis set

The Minimal Set of Basic Fundamental Units

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