Hydrogen, free

In the plasma deposition process, siUcon tetrachloride vapor is passed through an induction-coupled plasma torch using a hydrogen-free oxygen... 

Different methods have been devised to represent proteins. A structure for porcine pancreatic procolipase is reported in the Protein Databank, as determined by NMR spectroscopy. Many such structures are reported without the hydrogen atoms, since their positions often cannot be determined experimentally. Most MM packages will add hydrogens. Figure 1.18 gives the hydrogen-free procolipase structure in line representation. 

Hydrostatic pressure considerably increases workability of hydrogenated titanium alloys. Thus, their ductility at 20-250 C exceeds that of the hydrogen-free alloys in the pressure range of 10 kbar. 

In situ visbreaking with steam and a catalyst can produce crude oils with reduced viscosity [821]. A special variety of visbreaking that involves a partial steam reforming, which produces smaller hydrocarbon components and additional hydrogen free radicals and carbon dioxide, has been described. 

Figure 3.18 Spectrum of free energies of hydrogen adsorption, AGh, on binary surface alloys at r = 298K. The vertical axis shows the number of elements with free energies within 0.1 eV windows (O.O-O.l eV, 0.1-0.2 eV, etc.). The sohd vertical line indicates AGh = 0- The dashed vertical line gives the hydrogen free energy adsorption for pure Pt. AU free energies are referenced to gas phase H2. Adapted from [Greeley and Nprskov, 2007] see this reference for more details.

It will be interesting to discern if the preceding transformations are a consequence of electronic effects due solely to nitrogen incorporation, or if there is some influence of the growth process itself. Different theoretical approaches were used in the study of hydrogen-free carbon-nitrogen solids. 

The case of most frequent interest to us is that where the hydrogen-free center can exist in two charge states if I is an acceptor, these will be 1° and I-. We shall continue to assume that all IH complexes are neutral (5) is then replaced by... 

To evolve H2 for measurement of D/H burn 5 mg dry sawdust in 1 atm. 02 in a cupric oxide furnace at 750 °C. Use oxygen purified over silica gel and cupric oxide to ensure that the 02 is hydrogen free. Freeze out H20 and C02 in a liquid oxygen trap. Release C02 at dry ice temperature. React H20 vapor on clean uranium shavings at 950 °C, thus producing H2 quantitatively. 

Optical absorption, of hydrogenated and hydrogen- free films, 17 206 Optical amplifiers, 11 145-146 Optical applications U.S. patents in, 12 614t of vitreous silica, 22 440-441 Optical cavities, 14 849 Optical cells, for high pressure measurements, 13 417-419 Optical coatings, cerium application,... 

Krupp Uhde (KU) know-how and technology is based on extensive experience in chlorine production and provides clients with short shutdown periods for the conversion of chlorine plants to membrane technology, low-energy consumption and includes special technologies for higher chlorine quality and hydrogen-free production. 

Nowotny el al. (1956) who initially thought that all these phases were ternaries (Me5X3Z) According to Corbett and Leon-Escamilla (2003) the preparation of a hydrogen-free compound and of a ternary hydride can be summarized by the following reaction examples ... 

Figure 2. Description of the initial and boundary conditions for the hydrogen diffusion problem in the pipeline. The parameter / denotes hydrogen flux and C,(P) is normal interstitial lattice site hydrogen concentration at the inner wall-surface of the pipeline in equilibrium with the hydrogen gas pressure P as it increases to 15 MPa in 1 sec. At time zero, the material is hydrogen free,...

COS flames exhibit two zones. In the first zone, carbon monoxide and sulfur dioxide form and in the second zone, the carbon monoxide is converted into carbon dioxide. Since these flames are hydrogen-free, it is not surprising that the CO conversion in the second zone is rapidly accelerated by adding a very small amount of water to the system. 

In a hydrogen-free oxidizing atmosphere, a slower step forms the boron dioxide,... 

J. Bjerrum (35) proposes to call Lewis acids for anti-bases, reserving the word acids for the species participating in Bronsted equilibria with solvated protons. Since a Brmsted acid hence contains hydrogen, many hydrogen-free anti-bases exist. Actually, Berzelius called species such as SO3 acids but for about 100 years, this word was reserved for compoimds containing hydrogen which can be replaced by metallic elements. J. Bjerrum then argues that all Lewis bases are also Bronsted bases. 

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