photochemical in English
photochemical smog
Use "photochemical" in a sentence
1. Aryl azide reaction scheme for light-activated photochemical conjugation
2. The photochemical conversion is much more important for the living retina.
3. Angelicins, angular analogs of psoralens: chemistry, photochemical, photobiological and phototherapeutic properties
4. The photochemical retro-aldol type reactions of several nitrobenzyl derivatives are reported.
5. Wilhelm Homberg described how light darkened some chemicals (photochemical effect) in 1694.
6. Actinisms The property of radiation that enables it to produce photochemical effects
7. Actinic definition: (of radiation ) producing a photochemical effect Meaning, pronunciation, translations and examples
8. The key step in the synthesis was a photochemical cycloaddition of 5 and allene.
9. (a) Improvement of standardization of analytical methods, especially for NOX, hydrocarbons and photochemical oxidants.
10. The ring opening of Cyclopropane under thermal or photochemical condition was studied in organic synthesis
11. Actinism (the property of radiation that enables it to produce photochemical effects) Context examples
12. A general method for the photochemical generation of ribose Abasic sites within RNA oligonucleotides is reported
13. Alternatively, the sand could also have come from organic solids produced by photochemical reactions in Titan's atmosphere.
14. Hydrocarbon solvents absorb only at short wavelengths and are thus preferred for photochemical experiments requiring high energy photons.
15. In 1819 Grotthuss published a paper on the chemical effectiveness of light and formulated the photochemical absorption law.
16. 10 Back propagating artificial neutral net ( BP - ANN ) was applied to the forecasting of photochemical degradation of phthalates.
17. Of course, this can be done by electrolytic decomposition, but they are looking for a photochemical method.
18. Photochemical and fluorescence studies of acetylene initiated by absorption of light in the vacuum ultraviolet have been described.
19. The method is based on the use of a photochemical reaction of o-phenylenediamine (o-PD) Autosensitized oxidation as …
20. Actinism (usually uncountable, plural Actinisms) (chemistry, physics) That property of electromagnetic radiation that leads to the production of photochemical effects; Translations
21. Photochemical and chemical reactions involving it drive many of the chemical processes that occur in the atmosphere by day and by night.
22. From the study of photochemical reduction of CO 2 on silicate rocks (granite, etc.), it was found that formic acid is formed Abiologically on wetting
23. On the basis of these results and taking into account photochemical influences, a tentative scheme of the yearly ozone circulation in the atmosphere is postulated.
24. The experiment involves the photochemical dimerization of Anthracene, characterization of the product by UV, IR and NMR spectroscopy, and thermolysis of the dimer.
25. Actinism (usually uncountable, plural Actinisms) ( chemistry , physics ) That property of electromagnetic radiation that leads to the production of photochemical effects Translations [ edit ]
26. 2 Ameliorating tumor hypoxia PDT can be classified into type 1 and type 2 PDT based on the different photochemical reaction mechanisms (Figure 2 )
27. Airglow is a photochemical reaction in the Earth’s atmosphere caused by electronically excited atoms, molecules and ions that react to ultraviolet radiation from the Sun
28. Application p-Anisaldehyde may be used as a triplet sensitizer to catalyze the photochemical intermolecular atom-transfer radical addition (ATRA) of haloalkanes onto olefins
29. The photochemical equivalence law applies to the part of a light-induced reaction that is referred to as the primary process (i.e. absorption or fluorescence).
30. Actinometer definition is - any of various instruments for measuring the intensity of incident radiation; especially : one in which the intensity of radiation is measured by the speed of a photochemical reaction.
31. Cess et al. So, the anomalous absorption of solar radiation by clouds is basically equal to the absorption of solar actinic radiation by the substance with photochemical reactions in the atmosphere.
32. A photochemical reaction that occurs high in the atmosphere, Airglow is the result of various atoms, molecules and ions that get excited (chemistry-excited, that is… not “whee!”-excited) by
33. Actinism: 1 n the property of radiation that enables it to produce photochemical effects Type of: property a basic or essential attribute shared by all members of a class
34. The general principle of the Cyanotype process is the photochemical reduction of iron (III) salts to iron (II) salt that reacts with potassium ferricyanide (red prussiate of iron), forming an intensely blue complex
35. Edmond Becquerel was associated with his father in much of his work, but he himself paid special attention to the study of light, investigating the photochemical effects and spectroscopic characters of solar radiation and the electric light, and the phenomena of …
36. This interpretation challenged the century-old Adolf von Baeyer theory of photochemical reduction of CO2 adsorbed on chlorophyll which had guided decades of effort by Richard Willstätter, Arthur Stoll, and many others in vain searches for formaldehyde.
37. Airglow [ âr ′glō′ ] A faint photochemical luminescence in the upper atmosphere caused by the collision of x-rays and charged particles from the Sun with atoms and molecules, especially of oxygen, sodium, and the hydroxyl radical (OH)
38. The identity of breakdown products formed which at any time during the study are present in quantities ≥ 10 % of the active substance added, a mass balance to account for at least 90 % of the applied radioactivity, as well as photochemical halflife must be reported.
39. Because of its reactivity in the atmosphere, acrylonitrile’s potential contribution to photochemical ozone (and also smog) creation is moderate; however, quantities and concentrations available for reaction (18.75 tonnes in Canada in 1996) make the contribution very low relative to those of other substances.
40. Definition of Airglow : light that is observed especially during the night, that originates in the high atmosphere of a planet (such as the earth), and that is associated with photochemical reactions of gases caused by solar radiation Examples of Airglow in a Sentence
41. This was also observed in Japan, where the concentrations of acetaldehyde in the central mountainous region were not associated directly with motor exhausts but rather were associated with the photochemical oxidation of anthropogenic pollutants occurring there through long-range transport (Satsumabayashi et al., 1995).
42. Although photochemical cleavage of [H.sub.2] [O.sub.2] is Conceptionally the simplest method for the production of hydroxyl radicals, the exceptionally low molecular absorptivity of [H.sub.2] [O.sub.2] at 254 nm ([ [epsilon].sub.254nm] = 18.6 [M.sup.-1] [cm.sup.-1]) limits the [sup.*]OH yield in the solution.
43. It was confirmed that no acetone is formed in the limit of infinite hydrocarbon concentration and therefore that the primary chemical act leading to the eventual formation of acetone is the formation of two tert-butoxy radicals from the excited peroxide molecule; in addition, some crude information was obtained concerning relative rates of photochemical vs. deactivation processes.
44. Actinometer, in chemistry, a substance or a mixture of substances that reacts through the action of light and that, because of the easily determined quantitative relationship between the extent of the reaction and the energy of the absorbed light, is used as a standard for measurement of light energies involved in photochemical work.
45. Decision No 2179/98/EC of the European Parliament and of the Council of 24 September 1998 on the review of the European Community programme of policy and action in relation to the environment and sustainable development ‘Towards sustainability’ ( 6 ) specified that particular attention should be given to developing and implementing a strategy with the goal of ensuring that critical loads, in relation to exposure to acidifying, eutrophying and photochemical air pollutants, are not exceeded.