Big Chemical Encyclopedia

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

Articles Figures Tables About

General knowledge

Based on a general knowledge of base-catalyzed reactions of carbonyl compounds, a reasonable sequence of steps can be written, but the relative rates of the steps is an open question. Furthermore, it is known that reactions of this type are generally reversible so that the potential reversibility of each step must be taken into account. A completely... [Pg.197]

The precursor of such atomistic studies is a description of atomic interactions or, generally, knowledge of the dependence of the total energy of the system on the positions of the atoms. In principle, this is available in ab-initio total energy calculations based on the loc density functional theory (see, for example, Pettifor and Cottrell 1992). However, for extended defects, such as dislocations and interfaces, such calculations are only feasible when the number of atoms included into the calculation is well below one hundred. Hence, only very special cases can be treated in this framework and, indeed, the bulk of the dislocation and interfacial... [Pg.356]

Crude oils are refined to separate the mixture into simpler fractions that can be used as fuels, lubricants, or as intermediate feedstock to the petrochemical industries. A general knowledge of this composite mixture is essential for establishing a processing strategy. [Pg.12]

The information on inhibitor adsorption, derived from direct measurements and from inhibitive efficiency measurements, considered in conjunction with general knowledge of adsorption from solution indicates that inhibitor adsorption on metals is influenced by the following main factors. [Pg.807]

Use your general knowledge of alkene chemistry to suggest a mechanism for the following reaction ... [Pg.258]

Many of the reactions of qualitative and quantitative chemical analysis take place in solution the solvent is most commonly water but other liquids may also be used. It is, therefore, necessary to have a general knowledge of the conditions which exist in solutions, and also of the factors which influence chemical reactions. [Pg.15]

The Nobel Prize has been awarded since 1901. Dimitri Mendeleev, who designed the Periodic Table in 1869, lived until 1907. He was not distinguished with this prize, because his discovery had been made too long ago and in the meantime had become scientific general knowledge. [Pg.110]

I do not want to burden the Tribunal with tedious exposition, but we are concerned here with men who occupied key positions in a mammoth and intricate industrial establishment. In order to understand this case, it will be necessary to gain a general knowledge of the history and structure of the Farben empire and how the defendants fitted mto the organization. [Pg.78]

Additionally, the determination of THg levels in muscle of some fish species within the Flix reservoir has been studied (Diez, unpublished results). As expected, THg concentrations increased with trophic level. A comparison between mercury levels in muscle tissue of the individual fish species (p < 0.05) produced the following order European catfish > common carp > rudd > roach. Average THg concentrations (in ww) in muscle of European catfish (n = 9), common carp (n = 30), rudd (n = 20), and roach (n = 5) were 0.848 0.476 ig/g 0.333 0.155 pg/g 0.283 0.163 pg/g and 0.217 0.199 pg/g, respectively. The relative trophic level of the analyzed species is based on a generalized knowledge of the species and stomach contents of the studied adult fish populations [56, 60, 62, 71],... [Pg.251]

As general knowledge of the role of the gene in biology and in the practice of medicine increases, the definitions of race and ethnicity are likely to evolve in social discourse to reflect a more scientific understanding of biological diversify. The value of race as a predictor of disease and response to, or compliance with, drug therapy is an area of considerable debate. The... [Pg.268]

Note This table is not meant to be quantitative and is based on a general knowledge of these drugs. It is very difficult to determine incidence, and it can also be difficult to determine causality, especially with most case reports. [Pg.461]


See other pages where General knowledge is mentioned: [Pg.397]    [Pg.4]    [Pg.24]    [Pg.537]    [Pg.2288]    [Pg.285]    [Pg.154]    [Pg.18]    [Pg.161]    [Pg.44]    [Pg.44]    [Pg.24]    [Pg.314]    [Pg.532]    [Pg.2]    [Pg.9]    [Pg.324]    [Pg.215]    [Pg.152]    [Pg.209]    [Pg.765]    [Pg.507]    [Pg.357]    [Pg.255]    [Pg.408]    [Pg.14]    [Pg.213]    [Pg.310]    [Pg.74]    [Pg.695]    [Pg.214]    [Pg.29]    [Pg.379]    [Pg.292]    [Pg.1612]    [Pg.228]    [Pg.35]    [Pg.305]    [Pg.76]   
See also in sourсe #XX -- [ Pg.29 ]

See also in sourсe #XX -- [ Pg.29 ]




SEARCH



General chemical knowledge

© 2024 chempedia.info