Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Guiding centre

Let us now take Eq.(4) for the ion Larmor radius a less than a the pinch radius (or radial scale length), and calculate the total guiding centre current of ions, I... [Pg.283]

Heat flow by ion singular and guiding centre flows... [Pg.287]

Having now shown that even for zero axial ion centre of mass velocity there is a flow of ions to the electrodes with currents Isi and Igci the singular and (off-axis) guiding-centre ion... [Pg.287]

N. Clark, T. Cutter and J.-A. McGrance, Ventilation A Practical Guide, Centre for Occupational Hazards Inc., 5 Beekman Street, New York NY 10038, USA (1984). [Pg.91]

Liddament, M. W. Air infiltration calculation techniques An application guide. Coventry Air Infiltration and Ventilation Centre (AFVC), 1986. [Pg.1094]

Liddament M. W. A guide to energy efficient ventilation. Coventry Air Infiltration and Vcntilatitm Centre (AIVC), 1996. [Pg.1094]

EuReDatA Project Report No. 3, Guide to Reliability Data Collection and Management. B. Stevens, Commission of the European Communities, Joint Research Centre, Ispra Establishment, S.P./1.05.E3.86.20... [Pg.25]

Sequential instruments. The diagram of the light path of the Thermo Electron-200 ICP spectrometer is shown in Fig. 20.14. The plasma is located in the upper centre of the instrument just above the nebuliser, which is powered by a computer-controlled peristaltic pump. Communication with the instrument takes place on a video display, which not only guides the operator through the use of the system, but also provides graphics to simplify methods development. [Pg.776]

Guinde, J.B., Gorrde, M., Heijnngs, R. etal. (2001) Life Cycle Assessment An Operational Guide to the ISO Standards. Centre of Environmental Science (CML), Leiden University, The Netherlands. [Pg.225]

The abundance of structural information has led to a significant increase in the use of structure-based methods both to identify and to optimise inhibitors of protein kinases. The focus to date has centred upon small molecule ATP-competitive inhibitors and there are numerous examples of protein-ligand complexes available to guide design strategies. ATP binds in the cleft formed between the N- and C-terminal lobes of the protein kinase, forming several key interactions conserved across the protein kinase family. The adenine moiety lies in a hydrophobic region between the jS-sheet structure of subdomains I and II and residues from subdomains V and VIb. A... [Pg.3]

The Centre for Chemical Process Safety of the American Institute of Chemical Engineers has published a comprehensive and authoritative guide to quantitative risk analysis, AIChemE (2001). [Pg.390]

Goulet H, Huber JT (eds) (1993) Hymenoptera of the world an identification guide to families. Centre for Land and Biological Resources Research, Research Branch, Agriculture Canada, Ottawa... [Pg.175]

Figure 11. A schematic representation of the mean-field approximation, a central issue in the self-consistent-field theory. The arrows symbolically represent the lipid molecules. The head of the arrow is the hydrophilic part and the line is the hydrophobic tail. On the left a two-dimensional representation of a disordered bilayer is given. One of the lipids has been selected, as shown by the box around it. The same molecule is depicted on the right. The bilayer is depicted schematically by two horizontal lines. The centre of the bilayer is at z = 0. These lines are to guide the eye the membrane thickness is not preassumed, but is the result of the calculations. Both the potential energy felt by the head groups and that of the tail segments are indicated. We note that in the detailed models the self-consistent potential profiles are of course much more detailed than shown in this graph... Figure 11. A schematic representation of the mean-field approximation, a central issue in the self-consistent-field theory. The arrows symbolically represent the lipid molecules. The head of the arrow is the hydrophilic part and the line is the hydrophobic tail. On the left a two-dimensional representation of a disordered bilayer is given. One of the lipids has been selected, as shown by the box around it. The same molecule is depicted on the right. The bilayer is depicted schematically by two horizontal lines. The centre of the bilayer is at z = 0. These lines are to guide the eye the membrane thickness is not preassumed, but is the result of the calculations. Both the potential energy felt by the head groups and that of the tail segments are indicated. We note that in the detailed models the self-consistent potential profiles are of course much more detailed than shown in this graph...
Thus the simplest rule that the longer the bond the faster it breaks is not general not only are bond lengths in different systems not necessarily a guide to relative reactivity, but exceptions are to be expected also in systems where the conformation about the centres of interest varies. In fact this latter restriction is probably itself limited to situations, as in the benzylic system, or in acetals, in which strong rr-type orbital overlap directly affects the C-OX bond there appears to be little dependence on torsion angle in the [Pg.166]

Table 1.1 shows that the nature of the a-substituent in the radical centre enormously influences the Si hfs constants. These constants, which can be used as a guide to the distribution of unpaired electron density, were initially correlated to changes in geometry at the radical centre by analogy with C hfs constants of a-substituted alkyl radicals. Indeed, it was suggested that by... [Pg.9]

Gifkins, C., Herrmann, W., Large, R.R. 2005. Altered Volcanic Rocks a guide to description and interpretation. Centre of Ore Deposit Research, University of Tasmania. [Pg.61]

Fig. 13 Rietveld refinement of Sc-II at 23 GPa using the C-centred guest structure. Reflections are indexed using their hklm indices. The upper tick marks show the calculated peak positions for hklG) host reflections and (hkOO) host/guest reflections, and lower ones mark (hkOm) guest-only reflections. The difference between the observed and calculated profiles is shown below the tick marks. The inset shows an enlarged view of the asymmetric peak at 17.5°, showing that it is accounted for by the (4400) and (0002) peaks. The vertical dashed line is a guide to the eye... Fig. 13 Rietveld refinement of Sc-II at 23 GPa using the C-centred guest structure. Reflections are indexed using their hklm indices. The upper tick marks show the calculated peak positions for hklG) host reflections and (hkOO) host/guest reflections, and lower ones mark (hkOm) guest-only reflections. The difference between the observed and calculated profiles is shown below the tick marks. The inset shows an enlarged view of the asymmetric peak at 17.5°, showing that it is accounted for by the (4400) and (0002) peaks. The vertical dashed line is a guide to the eye...
Dickson, M. H. Faneli.i, M. (eds) 1990. Small Geothermal Resources — A Guide to Development and Utilization. UNITAR/UNDP Centre on Small Energy Resources, Rome/ltaly, 274 p. [Pg.379]

Two [Fe4S4] clusters have been identified and analyzed in bacterial and archaeal adenylylsulfate reductases. These enzymes are of importance in the sulfur cycle. The role of the iron-sulfur centres in relation to the third cofactor, FAD, has been studied. It was shown that the [Fe4S4] clusters function were electron transport guiding two electrons to the FAD catalytic site.234 A novel [Fe4S4] cluster with a high spin ground state (S = 3/2) was observed in the catalytic site of E. coli nitrate reductase A.235... [Pg.148]


See other pages where Guiding centre is mentioned: [Pg.1311]    [Pg.104]    [Pg.1311]    [Pg.283]    [Pg.284]    [Pg.284]    [Pg.285]    [Pg.386]    [Pg.759]    [Pg.1311]    [Pg.104]    [Pg.1311]    [Pg.283]    [Pg.284]    [Pg.284]    [Pg.285]    [Pg.386]    [Pg.759]    [Pg.2679]    [Pg.459]    [Pg.191]    [Pg.216]    [Pg.134]    [Pg.5]    [Pg.218]    [Pg.276]    [Pg.313]    [Pg.95]    [Pg.602]    [Pg.190]    [Pg.235]    [Pg.24]    [Pg.161]    [Pg.101]    [Pg.68]    [Pg.7]    [Pg.13]    [Pg.30]   
See also in sourсe #XX -- [ Pg.104 ]




SEARCH



© 2024 chempedia.info