Exploitation time

T is the exploitation time for filter (from new filtering material up to breakthrough point)... 

Temperature is very important on formation of the heterophase system. Even at low concentration of PVC in ester-type plasticizer (for example, in diocfyl phthalate at O 0.1 mol/L) the true solutions are formed only at temperatures above 400 K. Globular structure of suspension PVC and formation of associates retain at temperatures up to 430 - 445 K. In other words, PVC at plasticization, is capable to keep its structural individuality on a supermolecular level, which is formed during polymer s synthesis. Specifically in these conditions the ester-type plasticizer behaves not as a highly-basic solvent, but as a stabilizer at PVC s thermo-degradation due to formation of associates etc. This leads to a reduction of stabilizer s amount, extension of exploitation time of materials and products, etc. 

The main challenges in the rest of this chapter are to handle the presence of complex integrals and to exploit time-reversal symmetry. For this latter purpose we will resort... 

For the relativistic case, we use time-reversal symmetry instead of nonrelativistic spin symmetry to effect a reduction, and we introduce a set of spinors that are grouped as Kramers pairs. If we exploit time reversal on the integrals, we find that... 

Ring-opening polymerization (ROP) of aliphatic cyclic esters leads to aliphatic polyesters, a rediscovered class of polymers important in practice that show compatibility with natural environment (including human body) and are able to undergo hydrolytic and biological degradation after desired exploitation time. ... 

Bourland, K.E., Powell, S.G., and Pyke, D.F., 1996, Exploiting timely demand information to reduce myoalones, European Journal of Operational Research, 92 (2) 239. 

Thus they have been replaced with elements with a martensite structure mixture fully transformed by the zero processing and mounted in openings with insens of austenite steel (Fig.3). Thus prepared elements for caUbration. will be stable with time and will not cause any indication changes during exploitation. 

A the time of eddy-current testing, we exploit information given at distance by the variation of the impedance [L,R] of a solenoid near a conducting piece to defect and characterize the defects. 

Equation (A 1.6.94) is called the KHD expression for the polarizability, a. Inspection of the denominators indicates that the first temi is the resonant temi and the second temi is tire non-resonant temi. Note the product of Franck-Condon factors in the numerator one corresponding to the amplitude for excitation and the other to the amplitude for emission. The KHD fonnula is sometimes called the siim-over-states fonnula, since fonnally it requires a sum over all intennediate states j, each intennediate state participating according to how far it is from resonance and the size of the matrix elements that coimect it to the states i. and The KHD fonnula is fiilly equivalent to the time domain fonnula, equation (Al.6.92). and can be derived from the latter in a straightforward way. However, the time domain fonnula can be much more convenient, particularly as one detunes from resonance, since one can exploit the fact that the effective dynamic becomes shorter and shorter as the detuning is increased. 

As the number of atoms in the asyimnetric unit increases, the solution of a structure by any of these phase-independent methods becomes more difficult, and by 1950 a PhD thesis could be based on a single crystal structure. At about that time, however, several groups observed that the fact that the electron density must be non-negative everywhere could be exploited to place restrictions on possible phases. The first use of this fact was by D Marker and J S Kasper [24], but their relations were special cases of more general relations introduced by J Karle and H Hauptman [25]. Denoting by A. the set of indices h., k., /., the Karle-Hauptman condition states that all matrices of the fonu... 

The intensity autocorrelation measurement is comparable to all of the spectroscopic experunents discussed in the sections that follow because it exploits the use of a variably delayed, gating pulse in the measurement. In the autocorrelation experiment, the gating pulse is just a replica of the time-fixed pulse. In the spectroscopic experiments, the gating pulse is used to mterrogate the populations and coherences established by the time-fixed pulse. 

In general, multiple-time-step methods increase computational efficiency in a way complementary to multipole methods The latter make use of regularities in space, whereas multiple-time-stepping exploits regularities in time. Figure 2 illustrates the general idea ... 

MTS methods exploit the existence of different time scales arising from the many interactions present in the force field. For expository purposes assume... 

Two different types of dynamic test have been devised to exploit this possibility. The first and more easily interpretable, used by Gibilaro et al [62] and by Dogu and Smith [63], employs a cell geometrically similar to the Wicke-Kallenbach apparatus, with a flow of carrier gas past each face of the porous septum. A sharp pulse of tracer is injected into the carrier stream on one side, and the response of the gas stream composition on the other side is then monitored as a function of time. Interpretation is based on the first two moments of the measured response curve, and Gibilaro et al refer explicitly to a model of the medium with a blmodal pore... 

Thorium occurs in thorite and in thorianite. Large deposits of thorium minerals have been reported in New England and elsewhere, but these have not yet been exploited. Thorium is now thought to be about three times as abundant as uranium and about as abundant as lead or molybdenum. Thorium is recovered commercially from the mineral monazite, which contains from 3 to 9% Th02 along with rare-earth minerals. 

---