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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.Sentencedict.com

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(sentencedict.com), 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.