1. The initial setting reaction is photochemical polymerisation.

2. Here 130 million light-sensitive rods and cones cause photochemical reactions which transform the light into electrical impulses.

3. This paper firstly introduces the photochemical reaction principles briefly.

4. The photochemical reactions transform the light into electrical impulses.

5. Photochemical effect has quite strong selectivity upon laser wavelength.

6. This work mainly studies on the photochemical reaction of benzylideneaniline and azobenzene derivatives, we also studies on the pharmaceutical chemistry of the product from our new reaction.

7. Afterwards " fuliginous model " , " photochemical smog " after pollution, modern is being entered with " indoor air is polluted " the 3rd generation that is a mark pollutes period.

8. Objective To observe the photochemical effect of methylene blue (MB) on the inactivation of E. coli in blood and on biological functions of blood cells.

9. The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog.

10. Later, it was known as photochemical smog of this pollution.

11. The aggregate state and photochemical properties of their dilute aqueous solution are investigated in details.

12. The active radicals produced in the photochemical hydrogen-abstraction reaction between five Tatty amines and five nitrofluorenones have been studied by means of spin trapping -ESR technique .

13. Photochemical oxidants have been associated with impaired athletic performance in healthy cross - country runners .

14. Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.

15. The photochemical degradation of alizarin red is studied by the static method.

16. The photosensitivity of film is one kind of photochemical action.

17. If the dark period was too short, the photochemical system was not completely regenerated.

18. The photochemical reaction and mechanism of chlorofluorocarbons and aromatic compounds in solid ice was introduced chiefly.

19. In sunlight, VOCs can react in the lower atmosphere with nitrogen oxides to generate photochemical smog.

20. Likewise the fact that blood is red is surely a photochemical accident, not a design feature.

21. When it is bombarded with red light, it undergoes a photochemical reaction.

22. A more attractive long-term possibility is the direct solar production of hydrogen from water by photochemical conversion.

23. Finally, the chemistry of the stratosphere is dominated by the photochemical production and catalytic destruction of ozone.

24. A new method was developed for determination of nitrazepam by photochemical fluorescence analysis (PCFA).

25. Back propagating artificial neutral net ( BP - ANN ) was applied to the forecasting of photochemical degradation of phthalates.

26. Covalent bonds between chromogen and macromolecule chains enhance their photochemical stability, increase their whitening performance and fluorescence quantum yield.

27. A simple and mild method for the synthesis of fluorenol was studied. 9 bromofluorene (9 BF) can be selectively obtained by the photochemical reaction of fluorene with N bromosuccinimide (NBS).

28. The application of tactical blinding laser weapons need to know about the effects of laser induced retinal damage, mainly discussed the thermal effect and photochemical effect in detail.

29. Molybdenum(IV) chloride with high purity was prepared by the photochemical reaction of tetrachloroethylene and molybdenum(V) chloride in special reactor.

30. These successful applications demonstrate that two-dimensional FTIR spectroscopy may be a convenient and effective means in the study of the mechanism of photochemical photochromism.

31. Photochemical reaction engineering is a branch of chemical reaction engineering.

32. Via exposured, photochemical and make the cross - linking of Filmer aggregate compounding anti - alcohol.

33. Photochemical transformation of pesticides is an important non-biological process, in which the pesticide efficacy, catabolite, toxicity and environmental impact are significantly affected.

34. A third nonthermal process known as photochemical escape operates on Mars and possibly on Titan.

35. Photochemical smog is found in many large cities all over the world.

36. The decaying kinetics changed in different RCs, indicating that pheophytin replacement influenced the energy transduction and primary photochemical reaction in purple bacterial reaction centers.

37. The photochemical effect has been reproduced many times in laboratory experiments.

38. Thus it is electric field which triggers the photochemical process.

39. Structures and photochemical reaction of aswell as their applications in photosensitive materials as photoinitiataor. are reviewed.

40. Conclusion: MB photochemical method can inactivate bacteriophage f 2 , HIV - 1 and Japanese encephalitis virus in blood effectively.

41. Generally hydrocarbons are recognized as a component and promoter of photochemical smog.

42. Objective : To observe the histochemical changes of retinal photochemical damage in rats.

43. An innovative process for synthesizing vitamin D 2 by photochemical reaction is also put forward.

44. There is common physical relation among solar cells, photochemical convertion and selective radiation heat convertion detectors.

45. The kinetic characteristics of the two photochemical processes were monitored by using an UV - Vis absorption spectrophotometer.

46. Ozone is formed in the stratosphere and mesosphere by photochemical processes.

47. The authors also studied the route of photochemical reaction using bicyclo( tricyclo) diterpene derivatives as material and ambergris type materials were obtained with a16% total yield.

48. It was proved that this method is a feasible and efficient parallel algorithm for simulating the photochemical reactions.

49. An HPLC method was established for the determination of antiepilepserine and its cis-isomer and was used to study the kinetics of photochemical isomerization of antiepilepserine in methanol solution.

50. The photochemical behavior of succimide in alcohol was investigated and the photolysis mechanism was proposed with the aid of DFT (density functional theory) calculations.

51. The main chemical degradation of fenarimol in the environment was photochemical degradation,() but the hydrolysis and microbial degradation were difficult.

52. HO · may be an important factor to cause photochemical decolorization of congo red.

53. 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.

53.

54. The photochemical product was prepared and identified as the cis-isomer of antiepilepserine by elementary analysis and HNMR.

55. Theoretical analysis is given to this result based on photochemical process.

56. Construction and efficiency of prototype photochemical bleaching machine is introduced.

57. The role of photochemical reactions in soil pesticide degradation remains uncertain.