H Factor

To illustrate how different m(X ) and x may happen to be, let s consider as a specific example (others can be found in Saraiva and Stephanopoulos, 1992c) a Kraft pulp digester. The performance metric y, that one wishes to minimize, is determined by the kappa index of the pulp produced and the cooking yield. Two decision variables are considered H-factor (xj), and alkali charge (X2). Furthermore, we will assume as perfect an available deterministic empirical model (Saraiva and Stephanopoulos, 1992c), /, which expresses y as function of x, i.e., that y =/(xi, X2) is perfectly known. 

Schery, S.D., Gaeddert, D.H., and Wilkening, M.H., Factors Affecting Exhalation of Radon from a Gravelly Sandy Loam, J. Geophys. Res 89. 7299-7309 (1984). 

Incubate with rabbit anti-H factor serum (first antibody) without dilution for 10 min. 

Stevens, P.J.G., Baker. E.A., and Anderson. N.H. Factors affecting the foliar absorption and redistribution of pesticides. 2. Physicochemical properties of the active ingredient and the role of surfactant, Pestic. Sci., 24(l) 31-53,1988. 

Krebs, E.G., Graves,D.J. and Fischer, E.H. Factors affecting the activity of muscle phosphorylase kinase (1959) J. Biol. Chem. 2867-2873... 

These (without the h factor) are the Pauli spin matrices. 

In 1980, the g- and h-factors were defined in a slightly different102) manner making the direct application more feasible... 

No restriction is made to the same molecular weight distribution. Instead of this, the natural distributions for f > 2 and f = 2 are taken. For star-molecules, f = 2 corresponds to the monodisperse linear chain or to a linear chain that obeys the most probable distribution, and in the case of random polycondensates, f > 2 corresponds to the branched non-fractionated sample, and f = 2 to the linear polycondensate. The g and h-factors so defined no longer have the appearance of shrinking factors in all cases, as may be recognized from Figs. 43 and 44. For star-molecules, both factors decrease as... 

It may be emphasized here that the h-factor has become the more reliable parameter in spite of a less marked effect since with the recent photon-correlation spectroscopy, translational diffusion coefficients can be measured with a high accuracy and over the whole molecular weight range, from the monomer up to the largest molecular weights. 

The characterization of branched or cyclic structures by the g- and h-factors has the disadvantage that the properties of the analogous linear chains must be known. Such characterization requires a great deal of work in preparative chemistry as well as accurate physical chemical measurements, and in some cases the linear analogs are not even known. In such cases, a direct combination of the mean-square radius of gyration and the hydrodynamic radius leads to the very useful dimensionless parameter188. ... 

H. Factors Determining Resolution, Line Shape, and Relaxation. . 251... 

Martens, H., Factor Analysis of Chemical Mixtures Non-Negative Factor Solutions for Cereal Amino Acid Data Anal. Chim. Acta 1979, 112, 423—141. 

Fang, J., Sawa, T., and Maeda, H. Factors and mechanism of EPR effect and the enhanced antitumor effects of macromolecular drugs including SMANCS. Adv. Exp. Med. Biol. 519 29-49. 2003. 

Blank, I.H. Factors which influence the water content of the stratum corneum. J. Invest. Derm. 18 433, 1952. 

Hennings, H., Holbrook, K.A., and Yuspa, S.H., Factors influencing calcium-induced terminal differentiation in cultured mouse epidermal cells, J. Cell. Physiol. 116, 265-281, 1983. 

Wasserman GA, Liu X, Parvez F, Ahsan H, Factor-Litvak P, van Geen A, Slavkovich V, Lolacono NJ, Cheng Z, Hussain I, Momotaj H, Graziano JH (2004) Water arsenic exposure and children s intellectual function in Araihazar, Bangladesh. Environ Health Perspect, 112(13) 1329-1333. 

Martens, H., Factor analysis of chemical mixtures, Anal. Chim.Acta, 112,423 448,1979. 

A number of compounds yield more than two ions per molecule when dissolved in H2SO4 urea (NH2CONH2) has an i i factor of about 3, whereas sodium sulfate, sodium hydroxide, and nitric acid have H factors a bit less than 4 ... 

When the relative reaction rate is plotted against cooking time, the area under the resulting curve is called H factor ... 

A normal heating period contributes to the H factor by 150-200, and 1500-2000 are needed for a complete kraft cook. Within the bulk delignifi-cation phase the relative reaction rate is doubled when the temperature is increased by about 8°C. If the hydroxide and hydrosulfide ion concentrations vary in a reproducible manner the H factor will predict the degree of delignification with sufficient precision. 

Adina Mishkoff, Administrative Assistant Amcha, Jerusalem, E-mail from Wed, Aug. 13, 1997, 16 17 20 CDT, to Multiple recipients of list H-HOLOCAUST E. Spanic, H. Factor, V. Struminsky, Number of Living Holocaust Survivors , Amcha Press Release, PO Box 2930,1-91029 Jerusalem, July 27, 1997. 

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