H Measurement

Simmler H., and Manz H. Measurement and modelling of solar facade components and shading systems. CisBat 99. Lausanne EPF, 1999. 

In Eq. (10-17), parameters a and b measure the sensitivity of the reaction to these nucleophilic parameters. Since H measures proton basicity and En the electron-donation ability, this treatment models nucleophilicity as a combination of electron loss and electron pair donation. The Edwards equation is thus an oxibase scale of nucleophilic reactivity. Table 10-5 summarizes the nucleophilic parameters. 

We have successfully synthesized an inventory of polymers with this method. Table 7.4 summarizes viscosity and size data for select samples. The hydrodynamic radii (f h) measured by VIS and QELS agree within experimental error. 

Clearly defined time of onset <3 h Measurable stroke-related deficit No intracranial hemorrhage on CT... 

Isolated by complexation with host (+)-26 h measured in THF at the concentration of c 0.2 c no optical resolution occurred... 

Vlugt, T. J. H., Measurement of chemical potentials of systems with strong excluded volume interactions by computing the density of states, Mol. Phys. 2002, 100, 2763-2771... 

Louge, M., Lischer, J., and Chang, H., Measurements of Voidage Near the wall of a Circulating Fluidized bed Riser, Powder Tech., 62 269-276 (1990)... 

The DART large programme at ESO made v ei and [Fe/H] measurements from FLAMES spectroscopy of 401 red giant branch (RGB) stars in the Sculptor (Scl) dSph [6]. The relatively high signal/noise, S/N ( 10-20 per pixel) resulted in both accurate metallicities ( 0.1 dex from internal errors) and radial velocities ( 2 km/s). This is the first time that a large sample of accurate velocities and metallicities have been measured in a dwarf galaxy. 

Fig. 2. VLT/FLAMES [Fe/H] measurements for 308 potential members of Sculptor dSph versus elliptical radius. Also marked, is the extent of the RHB distribution (as a dashed line) and the tidal radius, rtidal-...

There are indications that the presence of two populations is a common feature of dSph galaxies. Our preliminary analysis of HB stars, Vhei and [Fe/H] measurements in the other galaxies in our sample (Fornax and Sextans dSph Battaglia et al., in prep) also shows very similar characteristics to Scl, especially in the most metal poor component. Pure radial velocity studies [15], [16] have also considered the possibility that kinematically distinct components exist in Ursa Minor, Draco and Sextans dSph galaxies. 

Fig. 4.6. Comparison of D/H measurements at high redshift from Lyman-limit and damped Lyman-a systems. The measurements come from O Meara et al. (2001 3 Lyman-limit systems and one marginal DLA), Crighton et al. (2004 the highest column density Lyman-limit system), Kirkman et al. (2003 another marginal DLA), Pettini Bowen (2001), Levshakov et al. (2002) and O Meara et al. (2006) (three classical DLAs). There is no convincing evidence for systematic trends with either column density or metallicity up to about 1/30 solar.

Willemer, H. Measurements of temperature, ice evaporation rates and residual moisture content in freeze-drying. Developments in Biological Standardization, Vol. 74, p. 123-136. Acting Editors Joan C. May, F. Brown, S. Karger AG, CH-4009 Basel (Switzerland), 1992... 

The reactor, an agitated tank, operates under a pressure of 1.5 kN/m2 (15 bar) and at 433 K (160°C). It is charged with a batch of 0.06 m3 of o-xylene and air introduced at the rate of 0.0015 m3/s (5.4 m3/h) measured at reactor conditions. The air is dispersed into small bubbles whose mean diameter is estimated from a photograph to be 0.8 mm, and from level sensors in the reactor, the volume of the dispersion produced is found to be 0.088 m3. Soon after the start of the reaction (before any appreciable conversion of the o-xylene) the gas leaving the reactor is analysed (after removal of condensibles) and found to consist of 0.045 mole fraction O2, 0.955 mole fraction N2. 

Kim, Y. Paek, U. Lee, B. H., Measurement of refractive index variation with temperature by use of long period fiber gratings, Opt. Lett. 2002, 27, 1297 1299... 

At the end of 24 h, measure the depth of the settled soil. This represents the total depth of soil. 

In Table 5.4 the contributions of the individual weathering reactions were assigned and combined in such a way as to yield the concentrations of Ca2+, Mg2+, Na+, K+, and H+ measured in these lakes the amounts of silicic acid and aluminum hydroxide produced and the hydrogen ions consumed were calculated stoichiometrically from the quantity of minerals assumed to have reacted. Corrections must be made for biological processes, such as ammonium assimilation and nitrification and the uptake of silicic acid by diatoms. Some of the H4Si04 was apparently lost by adsorption on aluminum hydroxide and Fe(III)(hydr)oxides, but the extent of these reactions was difficult to assess. 

Nevertheless the potential to be monitored in flotation system would be the mineral potential, not the solution potential. The electrode constracted from the mineral being concentrated should be the most appropriate electrode for f h measurements because the relevant is established at the mineral/solution interface (Woods, 1991). 

Dewulf, J., Drijvers, D., and Van Langenhove, H. Measurement of Henry s law constant as function of temperatrrre and salinity for the low temperatrrre range, Atmos. Environ., 29(3) 323-331, 1995. 

Howard, P.H., Banerjee, S., and Robillard, K.H. Measurement of water solubilities, octanol/water partition coefficients and vapor pressures of commercial phthalate esters. Environ. Toxicol. Chem., 4(5) 653-661, 1985. 

Punter, P.H. Measurement of human olfactory thresholds for several groups of structurally related compounds, Chem. Sens., 7(3-4) 215-235, 1983. 

Spellmeyee, D.C., Wong, A.K., and Moos, W.H. Measuring diversity experimental design of combinatorial libraries for dmg discovery. J. Med. 

L.L. Sasmor, H. Griffey, R.H. Measurement of macromolecular binding using electrospray mass spectrometry. Determination of dissociation constants for oligonucleotide serum albumin complexes. J. Am. Chem. Soc. 1995, 117, 10765-10766. 

Burgoyne and Hayes (1998) and Sessions et al. (1999) introduced the continuously flow technique for the D/H measurement of individnal organic compounds. The precise measurement of D/H ratios in a He carrier poses a number of analytical problems, related to the tailing from the abundant " He+ onto the minor HD+ peak as well as on reactions occurring in the ion source that produce H3+. However, these problems have been overcome and precise hydrogen isotope measurements of individnal organic compounds are possible. 

Swanson, J. R., and Wilkinson, J. H., Measurement of creatine kinase activity in serum. Stand. Methods Clin. Chem. 7, 33-42 (1972). 

For the study of complex cuticular mixtures, measurements of cross-polarization dynamics proved to be especially informative. The equality of Ti/>(H) values in cutin-wax assemblies demonstrated that these cuticular materials were mixed intimately. By contrast, Ti >(H) measurements showed that the polymeric components of suberized cell walls were present in distinct domains, suggesting that suberin was attached at a few structural sites rather than being embedded in the polysaccharide wall. 

Clarke, D.B., Lloyd, A.S., Botting, N.P., Oldfield, M.F., Needs, P.W., and Wiseman, H., Measurement of intact sulfate and glucuronide phytoestrogen conjugates in human urine using isotope dilution liquid chromatography-tandem mass spectrometry with [13C(3)]isoflavone internal standards, Anal. Biochem., 309, 158, 2002. 

Minimum reflectivities at 370 nm. h Measured with respect to N02 photolysis. 

Another possibly problematical observation is that the D/H ratio of the Earth s oceans is roughly half that measured in comets, but is similar to that for carbonaceous chondrites (Fig. 14.10). For this reason, Dauphas et al. (2000) calculated that no more than 10% of our planet s H20 was accreted as comet ice, a conclusion consistent with dynamical constraints (Morbedelli et al., 2000). Despite the importance that D/H measurements have been given in recent publications, fractionation of these isotopes when ice is sublimated has been demonstrated experimentally. Consequently, the measurements of D/H in comet comae may not... 

---