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De-coupling

Intermediate storage de-couples the process into periodically operated subprocesses in the sense that each of the subprocesses can be operated with its own limiting cycle time and batch size. If the storage capacity is sufficiently large to accommodate the intermediate product of an entire production campaign, then the subprocesses can be operated completely independently. Alternatively, the storage capacity can be selected so that it de-couples the... [Pg.482]

Perhaps the most significant advantage of using froth flotation to beneficiate fly ash is the ability to process ash that has been impounded in disposal ponds and landfills. This is advantageous for several reasons. First, it effectively de-couples ash beneficiation from ash production. There is no need for the utility to alter disposal practices or install additional ash handling equipment in order to accommodate ash processing since the feed to the processing plant... [Pg.259]

Ph. Marteau, H. Vu, and B. Vodar. Probability de transition des bandes de transition pure des couples de gaz rares aux basses frequences. Compt. Rend., 266 1068, 1968. [Pg.418]

Figure 1.11. NMR analysis of the keto-enol tautomerism of 2,4-pentanedione [CDCI3, 50% v/v, 25 °C, 60 MHz for H, 20 MHz for 13C]. (a) 1H NMR spectrum with integrals [result keto enol = 13 87] (b) 1H broadband de-coupled 13C nMR spectrum (c) "(J NMR spectrum obtained by inverse gated h decoupling with integrals [result keto enol = 15 85 ( 1)]... Figure 1.11. NMR analysis of the keto-enol tautomerism of 2,4-pentanedione [CDCI3, 50% v/v, 25 °C, 60 MHz for H, 20 MHz for 13C]. (a) 1H NMR spectrum with integrals [result keto enol = 13 87] (b) 1H broadband de-coupled 13C nMR spectrum (c) "(J NMR spectrum obtained by inverse gated h decoupling with integrals [result keto enol = 15 85 ( 1)]...
Bond lengths to be constrained can be selected using HyperChem, as described previously, or in MOMEC using Tools/Build Selections. Then, go to Execute/De-coupled Energy, set the Start Value, Step Value and Number of Data Points to the desired values as shown in Fig. 17.17.4. [Pg.281]

Lipid bilayers have been studied in vesicles of about 500 A diameter. The bilayers can be made of many lipids. The most common lipid is lecithin, phosphatidyl choline (PC). Packing the lipids in the vesicle results in two-thirds of the lipid head groups on the external face about one-third on the internal face. The head group of the lipid PC is phosphocholine -O-POJ-O-CH2-CH2N (013)3 and the head group is studied by P, H, D or C NMR and the long fatty chains by C, H, or D NMR. Conformational studies of the molecules by conventional de-coupling, nuclear Overhauser effects and by Ln(III) probes... [Pg.835]

From these time-scales, it may be assumed in most circumstances that the free electrons have a Maxwellian distribution and that the dominant populations of impurities in the plasma are those of the ground and metastable states of the various ions. The dominant populations evolve on time-scales of the order of plasma diffusion time-scales and so should be modeled dynamically, that is in the particle number continuity equations, along with the momentum and energy equations of plasma transport theory. The excited populations of impurities on the other hand may be assumed relaxed with respect to the instantaneous dominant populations, that is they are in a quasi-equilibrium. The quasi-equilibrium is determined by local conditions of electron temperature and electron density. So, the atomic modeling may be partially de-coupled from the impurity transport problem into local calculations which provide quasi-equilibrium excited ion populations and effective emission coefficients (PEC coefficients) and then effective source coefficients (GCR coefficients) for dominant populations which must be entered into the transport equations. The solution of the transport equations establishes the spatial and temporal behaviour of the dominant populations which may then be re-associated with the local emissivity calculations, for matching to and analysis of observations. [Pg.400]

The fact that the methanol is stored as an intermediate brings strength to this route as it de-couples the methanol synthesis from the subsequent conversion of methanol into olefins. [Pg.214]

We derived this before, see [1.3.9.6 and 7. The configurational integral requires the computation of the potential energy of the system for all configurations of the system, that is for all x, y, z positions of all molecules (numbered 1, 2,. .. N) in a volume V. Equations [2.9.5 and 6] are exact for three-dimensional systems of monatomic fluids, be they ideal or non-ideal. Now we apply them to a surface phase and introduce approximations compatible with the energy-entropy de-coupling. [Pg.177]

Equations ]4.7.9] are thermodynamic interpretations of the bending moduli for the case that the curvature and the chemical potential are coupled. This is the situation we wemted to describe. De-coupling can, for instance, take place in dilute micro-emulsions then the adsorption or desorption involved In bending the interface, or making more droplets, leads to a negligible change in concentration and hence to almost constant chemical potentials. In that limit. [Pg.551]

There have been patent applications for a wideband NQR system using multiple de-coupled radiofrequency (RF) coils,8 for an apparatus and method of detecting NQR signals in the presence of incoherent noise,9 and for a method and apparatus for improving the detection of NQR signals in coherent noise.10... [Pg.185]

CAP/V1T] Capdevila, H., Vitorge, P., Potentiels redox des couples PuO /PuOj et Pu /Pu a force ionique et temperature variables. Entropie et capacite calorifique, Commissariat a I Energie Atomique, Report CEA-N-2762, (1994), 73 pp.. Cited on pages 606, 607. [Pg.780]

Separation and identification of several thousand proteins are achieved by use of two-dimension electrophoresis (2-DE) coupled to MS. This procedure, which can be automated, involves excision of the protein spots from the 2-DE gel followed by individual enzymatic proteolysis with trypsin and MS analysis of the mixture (Ashcroft, 2003). [Pg.323]


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