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Energy, improvement

Typically, the biggest lost that occurs in chemical processes is in the combustion step (6). One-third of the work potential of natural gas is lost when it is burned with unpreheated air. Eigure 3 shows a conventional and a second law heat balance. The conventional analysis only points to recovery of heat from the stack as an energy improvement. Second law analysis shows that other losses are much greater. [Pg.222]

Actual and projected refrigerator-freezer energy improvements from 1972 to 2001. [Pg.998]

Succinic add source of carbon and energy improves metabolic balance between carbon flux from glucose and oxidation throgh TCA cyde. [Pg.365]

We found that these more sophisticated spin-coupled calculations, which used larger basis sets with polarization functions on all of the atoms and which allowed the a orbitals to relax, produced a picture of bonding in the 7t-electron system of benzene which is practically identical to that described earlier. As before, we found six equivalent spin-coupled orbitals which are transformed into one another by successive C6 rotations. The overlaps between the orbitals, ordered cpa to cp6 around the ring, are reported in Table 1. In this case, the electron correlation effects incorporated in the spin-coupled model provide an energy improvement over the SCF description of 170 kJ mol - with a further lowering of 20 kJ mol -1 on including spin-coupled ionic structures. [Pg.48]

Galloway, R.C. and Haslam, S. (1999) The ZEBRA electric vehicle battery power and energy improvements, J. Power Sources 80, 164-70. [Pg.240]

At each step, one basis set is added to the set already in use, and a sequence of calculations is performed, each with the added exponential parameters determined by random selection. The set of added parameters that give the lowest energy defines the new basis function, which then becomes a permanent member of the basis set provided the energy improvement is greater than a predetermined increment. This increment is adjusted during the calculation to control convergence. [Pg.21]

Table IV shows test results of samples with various levels of piperidine and a constant amount of Hycar CTBN. The data on fracture energy in the table show conclusively an increase in crack resistance with increasing amounts of piperidine, but there is no corresponding increase in the Gardner impact. This system shows a rate sensitivity. The slow rate cleavage test for fracture energy improves although a fast rate impact test does not. Also there is a greater deterioration of mechanical properties when the additional piperidine is used. Table IV shows test results of samples with various levels of piperidine and a constant amount of Hycar CTBN. The data on fracture energy in the table show conclusively an increase in crack resistance with increasing amounts of piperidine, but there is no corresponding increase in the Gardner impact. This system shows a rate sensitivity. The slow rate cleavage test for fracture energy improves although a fast rate impact test does not. Also there is a greater deterioration of mechanical properties when the additional piperidine is used.
A precursor to four neurotransmitters and to thyroid hormone and growth hormone, tyrosine amplifies energy, improves mental function, and may help depression caused by norepinephrine deficiency. [Pg.21]

The local-scaling version of density functional theory is still in its infancy in regard to its applications. Although formally exact, in order to become a useful tool in the hands of practicing quantum chemists, it requires that a number of numerical developments be carried out. The problem is that some of the methods for energy improvement, such as, for example, those indicated in Subsections 3.1.1, 3.1.2 and... [Pg.108]

C/,phF - When this process is carried out at fixed Hartree-Fock density, for set A, the energy improves from -14.589 499 hartrees to -14.589 526 hartrees. A similar improvement occurs also for the other sets B and C. For the former, the energy goes from -14.609808 hartrees to -14.609833 hartrees and for the latter, from -14.609751 hartrees to -14.609803 hartrees. [Pg.116]


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See also in sourсe #XX -- [ Pg.660 ]




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A Method for Evaluating Energy Improvement Options

An Improved Lower Bound on the Free Energy

Approaches to improve heat transport and energy conversion efficiency

Energy efficiency improvements

Energy improvement, options under

Energy improvement, options under evaluation

Fiber Coating for Improved Energy Absorption Capability

Five Ways to Improve Energy Efficiency

Industrial energy efficiency improvements

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The focus on major improvements in energy-efficient solutions

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