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Degrees internal

The guidelines stress, however, that internal quality control is not foolproof even when properly executed. Obviously it is subject to errors of both kinds , i.e. runs that are in control will occasionally be rejected and runs that are out of control occasionally accepted. Of more importance, IQC cannot usually identify sporadic gross errors or short-term disturbances in the analytical system that affect the results for individual test materials. Moreover, inferences based on IQC results are applicable only to test materials that fall within the scope of the analytical method validation. Despite these limitations, which professional experience and diligence can alleviate to a degree, internal quality control is the principal recourse available for ensuring that only data of appropriate quality are released from a laboratory. When properly executed it is very successful. [Pg.89]

Note Optimized values taken from the Z-matrices, bond lengths in A, angles in degrees. Internal coordinates for water molecules did not show trends and are not shown. [Pg.250]

Pursuit of a doctorate through the nontraditional pathway requires a significant commitment in terms of time, money, and determination on the part of the candidate,The motivations behind obtaining a postbaccalaureate Pharm.D. are multifactorial, but can be separated into two broad categories—external or internal. External motivations for application to a nontraditional Pharm.D. program include earning a promotion, employer pressure, and concerns about future job security as a result of the shift from BS to Pharm.D. as the sole entry degree. Internal motivation, however, derives from a de-... [Pg.600]

A—Specimen platform supported at an angle of 45 degrees, internal width 6J in. [Pg.295]

Values of A, degrees - large end, a 30 degrees. Internal pressure... [Pg.59]

External rotation 45 degrees internal rotation approximately 35 degrees. [Pg.475]

All gases below their critical temperature tend to adsorb as a result of general van der Waals interactions with the solid surface. In this case of physical adsorption, as it is called, interest centers on the size and nature of adsorbent-adsorbate interactions and on those between adsorbate molecules. There is concern about the degree of heterogeneity of the surface and with the extent to which adsorbed molecules possess translational and internal degrees of freedom. [Pg.571]

Thus the kinetic and statistical mechanical derivations may be brought into identity by means of a specific series of assumptions, including the assumption that the internal partition functions are the same for the two states (see Ref. 12). As discussed in Section XVI-4A, this last is almost certainly not the case because as a minimum effect some loss of rotational degrees of freedom should occur on adsorption. [Pg.609]

These results do not agree with experimental results. At room temperature, while the translational motion of diatomic molecules may be treated classically, the rotation and vibration have quantum attributes. In addition, quantum mechanically one should also consider the electronic degrees of freedom. However, typical electronic excitation energies are very large compared to k T (they are of the order of a few electronvolts, and 1 eV corresponds to 10 000 K). Such internal degrees of freedom are considered frozen, and an electronic cloud in a diatomic molecule is assumed to be in its ground state f with degeneracy g. The two nuclei A and... [Pg.405]

There is an inunediate coimection to the collision theory of bimolecular reactions. Introducing internal partition functions excluding the (separable) degrees of freedom for overall translation. [Pg.780]

The present derivation can easily be generalized to systems with an arbitrary number of internal degrees of freedom, and it leads to coupled channel equations identical with equation (A3.11.63). where the coupling temis (A3.11.62) are expressed as matrix elements of the interaction potential using states which depend on these internal degrees of... [Pg.973]

The classical mechanical RRKM k(E) takes a very simple fonn, if the internal degrees of freedom for the reactant and transition state are assumed to be hamionic oscillators. The classical sum of states for s harmonic oscillators is [16]... [Pg.1017]

Isotropic rotational diffusion with one internal degree of freedom... [Pg.1505]


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See also in sourсe #XX -- [ Pg.17 ]




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Chemical Potential for an Internal Degree of Freedom

Degrees of freedom internal

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FIELDS AND INTERNAL DEGREES OF FREEDOM

Internal molecular degrees of freedom

Three Internal Rotational Degrees of Freedom

Torsion angles, internal degrees

Torsion angles, internal degrees freedom

Two Internal Rotational Degrees of Freedom

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