Stability requirements

Many pigments are quite color-stable when used at high eoneentrations to give deep eolors. Fewer are eolor-stable at intermediate eoneentrations and only a few are suitable 

Although the final product dictates stabilizer requirements as well as color requirements, it is important to remember that stabilizers and pigments are additives and additives may affect color even if they are not pigments. They may affect thermal and UV stability even though they are considered to be colorants. It has been already mentioned that stabilizers affect color. Modern stabilizers add very little color to fiber products and do not change drastically on exposure hence, they have little effect on color. However, pigments do interact with stabilizers and cause thermal and UV stability to differ from what is obtained without the pigments. 

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The tubes of the new MCB series are a highly integrated and reliable ready-to-use component for radiation applications, which until now were not feasible due to the lack of robustness, size, or stability requirements. 

Themiodynamic stability requires a repulsive core m the interatomic potential of atoms and molecules, which is a manifestation of the Pauli exclusion principle operating at short distances. This means that the Coulomb and dipole interaction potentials between charged and uncharged real atoms or molecules must be supplemented by a hard core or other repulsive interactions. Examples are as follows. 

When we say cycloheptatriene is not aromatic but cycloheptatrienyl cation is we are not comparing the stability of the two to each other Cycloheptatriene is a stable hydrocarbon but does not possess the special stability required to be called aromatic Cycloheptatrienyl cation although aromatic is still a carbocation and reasonably reac tive toward nucleophiles Its special stability does not imply a rock like passivity but rather a much greater ease of formation than expected on the basis of the Lewis struc ture drawn for it A number of observations indicate that cycloheptatrienyl cation is far more stable than most other carbocations To emphasize its aromatic nature chemists often write the structure of cycloheptatrienyl cation m the Robinson circle m a ring style... 

Many stabilizers require costabilizers. Several organic costabilizers are quite useful with barium—zinc and calcium—zinc stabilizers, eg, P-diketones, epoxies, organophosphites, hindered phenols, and polyols (122). 

This stability requirement is quite demanding. Superficially, it appears that Azmax decreases as Ar, but V iR — Ar) is also decreasing, in approximate proportion to Ar. The net effect is that Az varies as Ar. Doubling the number of... 

Stability requirements for the existence of these alternative conformational states at Tg allowed us also to estimate the strength of their coupling to the regular lattice vibrations, which is determined by Tg, the material mass density, and the speed of sound. This enabled us to understand the universality of the phonon scattering at the low temperatures. 

In the production of aerated confections it is very important to add various hydrocolloids, in order to obtain a foam which will withstand the specific stability requirements of the specialty food product involved. 

Englezos, P., N. Kalogerakis and P.R. Bishnoi, "Estimation of Binary Interaction Parameters for Equations of State Subject to Liquid Phase Stability Requirements", Fluid Phase Equilibria, 53, 81-88, (1989). 

H. L. Newmark and E. DeRitter, Animal Health Dosage Forms Stability Requirements, in Animal Health Products Design and Evaluation (D. C. Monkhouse, ed.), American Pharmaceutical Association, Washington, DC, 1978, p. 133. 

The complete Routh array analysis allows us to find, for example, the number of poles on the imaginary axis. Since BIBO stability requires that all poles lie in the left-hand plane, we will not bother with these details (which are still in many control texts). Consider the fact that we can calculate easily the exact roots of a polynomial with MATLAB, we use the Routh criterion to the extent that it serves its purpose.1 That would be to derive inequality criteria for proper selection of controller gains of relatively simple systems. The technique loses its attractiveness when the algebra becomes too messy. Now the simplified Routh-Hurwitz recipe without proof follows. 

In practical application, Raman sensors exclusively use frequency-stabilised laser sources to compensate for the low intensity of the Raman radiation. For Raman sensors, prevalently compact high-intensity external cavity laser diodes are used, operated in CW (continuous wave) mode. These diode lasers combine high intensity with the spectral stability required for Raman applications and are commercially available at various wavelengths. 

The macromolecule containing sulfhydryl residues to be blocked or protected is dissolved in a buffer suitable for its individual stability requirements. The blocking process may be done on a purified protein or during the early stages of a purification process to protect sulfhydryl active centers from oxidation. PBS buffers containing 1 mM EDTA work well. 

Lifetime/stability requirements 10 years/> 10000 hours -> 15 years/>20000 hours ... 

Initial stabilization requires achievement of adequate arterial oxygen saturation and content. 

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