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Dynamic sensitivity

As noted eailier, the dynamic sensitivity of VCD carries it beyond the Bom-Oppenheimer approximation (17, 18). Even though non-Bom-Oppenheimer calculations have recently been initiated (116-119), the use of molecular orbital methods to describe these vibrationally induced currents is lagging behind the measurement and interpretation of VCD based on such currents. Nevertheless, the empirical basis that is now emerging for understanding VCD intensities based on chirally oriented oscillators and induced currents makes possible the immediate application of this methodology to stereochemical problems of widespread interest. [Pg.201]

Parton, W. J., Schimel, D. S., Ojima, D. S., and Cole, C. V. (1994). A general model for soil organic carbon dynamics Sensitivity to litter chemistry, texture and management. In Quantitative Modelling of Soil Forming Processes, Bryant, R. B., ed., Soil Science Society of America, Madison, WI, pp. 147-168. [Pg.215]

If the electron transfer proceeds as a b(molecular reaction, the formation of an encounter corrplex is required. However, besides the bimolecular dynamic sensitization, we have been able to show some advantages in realizing the concept of static sensltiza-t ion (15). [Pg.107]

Dynamic spectral sensitization (16). Based upon the kinetic scheme given above (Scheme 1), the dynamic sensitization pathway leading to the desired product, e.g. by electron transfer, ray be written as shown in Equation 2. [Pg.107]

The nrost critical barrier with respect to the generation of the products is the diffusion-controlled (k formation of the encounter corrp lex, since the generation of 5. . .M n y be prevented by an inadequate lifetime of S, by a high viscosity of the medium or by an unfavourable ionic strength. Further deactivation processes rrust also be considered, as illustrated previously (Scheme 1). Despite these disadvantages, there are known some ex-anpies where dynamic sensitization leads to the formation of products ( 1 ). [Pg.107]

Static spectral sensitization. To overcome some of the disadvan-tages of the dynamic sensitization, the concept of static sensiti-... [Pg.107]

The computation of the dynamic reaction of buildings imder wind load in the freqnency domain is suggested by Davenport (Davenport 1961a). Normally the goal of this method is to evaluate the size of a specific or a vary set of structural reaction values and the exceeding probability of the value for dynamic sensitive structures. The probability distribution used in the spectral method is already fixed with the standard Gaussian probability distribution. Initial step of the method is... [Pg.1347]

The applied model predictive algorithm has a few special features that make it more effective operates with constraints on manipulated variables and controlled variables a nonlinear form of the MPC algorithm was used to obtain feasible control performance the NLMPC controller was tuned according to the dynamic sensitivity analysis. [Pg.394]

The piezo qualities of PVDF are stable at temperatures up to about 70 C (158 C). When suitably treated, the film is stable up to 100°C (212°F) but is unfit for exposure above that point. Its dynamic sensitivity mns from about 10" to 10 N/m, a 286-dB range. With its many performance capabilities, PVDF has found many uses, a few of which are touched upon here. [Pg.238]

Figure 3 Schematic representation of the effect of hypoxia upon CO2 chemosensitivity in the carotid body. In the neonate, CO2-O2 interaction is additive and the steady-state CO2 sensitivity (solid lines) is thus independent of O2 and is shown as parallel lines in both normoxia (N) and hypoxia (H). Dynamic sensitivity (dashed lines) is steeper than the steady sensitivity and is also independent of O2 at this age and therefore the degree of adaptation (the vertical distance between the dynamic and steady-state responses) is also independent of O2. In the adult, the development of a multiplicative interaction between CO2 and O2, with the maintained O2 independence of the dynamic sensitivity, gives rise at this age to an 02-dependent adaptation, with the degree of adaptation decreasing proportionally with increasing hypoxia. Figure 3 Schematic representation of the effect of hypoxia upon CO2 chemosensitivity in the carotid body. In the neonate, CO2-O2 interaction is additive and the steady-state CO2 sensitivity (solid lines) is thus independent of O2 and is shown as parallel lines in both normoxia (N) and hypoxia (H). Dynamic sensitivity (dashed lines) is steeper than the steady sensitivity and is also independent of O2 at this age and therefore the degree of adaptation (the vertical distance between the dynamic and steady-state responses) is also independent of O2. In the adult, the development of a multiplicative interaction between CO2 and O2, with the maintained O2 independence of the dynamic sensitivity, gives rise at this age to an 02-dependent adaptation, with the degree of adaptation decreasing proportionally with increasing hypoxia.
The equation for G is given in Paragraph 6.5.8.2 of ASCE 7-2005 [2] for flexible or dynamically sensitive structures. This equation, listed as Eq. 6.8 in the standard, reads as follows ... [Pg.80]

Perumal, T.M., Krishna, S.M., Tallam, S.S., Gunawan, R. Reduction of kinetic models using dynamic sensitivities. Comput. Chem. Eng. 56, 37-45 (2013)... [Pg.139]

First Excursion Stochastic Dynamics Sensitivity Simulation Methods... [Pg.3247]

It is necessary to assume that the medium is isotropic, uniform, randomly constructed and represented by a nore-throat geometry between its boundaries. Connectivity of 1 implies a poorly connected or dead-ended pore connectivity of zero defines an isolated pore. Parallel, non-intersecting pores would define a one dimension void space of connectivity 2. Time effects due to intrapatticle back-mixing would create an extra dimension and lead to dynamic sensitivity of apparent transport resistance. [Pg.201]

The variation of stress along the thread due to diameter variation will confound the dynamic sensitivity above and complicate the correlation of tortuosity considerably. Unfortunately, in most real porous solids, a large PS/TS ratio is the norm rather than the exception. It has been observed in some porous solids (e.g., compressed Aerosils) that there is no scanning-rate influence on retained mercury. [Pg.204]

Figure 15 shows the modulus and the phase of the global calibration transfer function, A Vf/Ae(co), for an home-made configuration. At low frequencies, the phase shift of (AVf/Ae) is close to 0 and the modulus, AVf/Ae, is equal to 1.02. This result means that the dynamic sensitivity (AFf/A )jy amic of system is... [Pg.209]


See other pages where Dynamic sensitivity is mentioned: [Pg.509]    [Pg.195]    [Pg.82]    [Pg.214]    [Pg.15]    [Pg.443]    [Pg.118]    [Pg.187]    [Pg.291]    [Pg.2974]    [Pg.300]    [Pg.1828]    [Pg.87]    [Pg.362]    [Pg.277]    [Pg.485]   
See also in sourсe #XX -- [ Pg.238 ]




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