Large zone

In the region of the terrestrial planets, there may have been several thousand planetesimals of up to several hundred kilometres in diameter. During about ten million years, these united to form the four planets—Mercury, Venus, Earth and Mars—which are close to the sun. Far outside the orbit of the planet Mars, the heavier planets were formed, in particular Jupiter and Saturn, the huge masses of which attracted all the hydrogen and helium around them. Apart from their cores, these planets have a similar composition to that of the sun. Between the planets Mars and Jupiter, there is a large zone which should really contain another planet. It... 

The evidence for live 26A1 and its in situ decay is the precise correlation of 26Mg excesses with Al/Mg ratios. The observed variations in (26A1/27A1)Q and large zoning of Mg,... 

Ability to achieve and sustain a relatively large zone of uniform temperature in excess of 2500C,... 

Tests when performed with Gram-negative bacteria, such as Escherichia coli 25922, revealed a large zone of inhibition of 18.9 mm around the Cf discs, while a 17.8 mm zone of inhibition around Fp discs when placed individually. These on combination became a 20.0 mm zone of inhibition for Cf and a 18.9 mm zone of inhibition for Fp, respectively. The surface area of inhibition due to Cf was 11.98%, while that due to Fp was 12.74% (Table 40). 

Indeed, the electron transfer bands situated in the U. V. are shouldered on the long wavelength side by a large zone of weak absorption which is differently resolved according to different authors. 

Homopolymers and both ethylacrylate and vinylacetate copolymers of 8-hydroxyqulnolyl acrylate, (5), gave large zones of inhibition in agar dish tests due to rapid self-hydrolysis from the polymers. Thus, the polymer systems are not suitable for slow release. Tests are underway on polymers of the extended chain analog, (6). 

The above acetate (1 g.) was dissolved in benzene (10 ml.) and chromatographed on a column (230 x 35 mm.) of Magnesol/Celite (5 1 by wt.) by development with 750 ml. of benzene-ethanol (100 1 by voL). An alkaline permanganate streak showed a large zone near the bottom and a faint one near the top of the column. The bottom zone was sectioned and extracted with acetone, and the residue obtained on removal of the solvent was crystallized from methanol-ether-petroleum ether crystalline solid with a sli t yellow tinge, m.p. 136.5-137.5° (cor.), [a]g - 59° (c 4, CHCls). 

The large zone scheme and a common set of dispersion curves for the uniaxial crystal direction were discussed in Datareview 2.2, Section B (p.21 of this book). 

The presence of a fairly large zone of steam ahead of the burning front allows much earlier termination of the combustion process than is the case with the dry air injection. This circumstance leads to reduction in air consumption 1 2-3 times. 

The images in Fig. 2.33a show that large zones in some of the Pb02 particles are nontransparent for the electron beams (dark zones), while others let the electron beams through. The latter zones are heterogeneous in structure comprising fully transparent and less transparent zones. When the sample is heated in the microscope, it boils and water is released, as a result of which the Pb02 phase concentrates into a compact mass. This indicates that the electron transparent zones in the particles are composed of hydrated lead dioxide (Pb(OH)4 and PbO(OH)2). 

Recommendation 8. Use more short heating zones and side-fired burners to help maintain the burner wall temperature very high during maximum firing rates. Flat-flame roof burners also can help maintain nearly constant across-fumace temperatures throughout the maximum heat transfer period. The benefit will come from increased A r as needed to control load temperature in many small zones in stead of a few large zones. 

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