نتایج جستجو برای: photochemistry
تعداد نتایج: 3515 فیلتر نتایج به سال:
It is shown that the velocity of bleaching of visual purple by light, under comparable conditions of concentration, volume, and surface exposed, is directly proportional to the intensity.
Contact details: by EMAIL My research focuses on understanding the behaviour of and designing new methods to calculate the electronic structure of molecules. In particular understanding where and why existing methods fail tells us a lot about how to design new, better methods and algorithms. Below I list a number of possible research directions. These potential projects should be suitable for s...
Introduction Conclusions References Tables Figures
Ultrafast photochemical processes can occur in parallel with the relaxation of the optically populated excited state toward equilibrium. The latter involves both intra- and intermolecular modes, namely vibrational and solvent coordinates, and takes place on timescales ranging from a few tens of femtoseconds to up to hundreds of picoseconds, depending on the system. As a consequence, the reactio...
Starting from the various primary photochemical processes (luminescence, non-radiative transition to the ground state, electron and energy transfer, isomerization, addition, hydrogen abstraction, and fragmentation), the most important technical applications of photochemistry are reviewed. The main applications of luminescence phenomena are optical bleaching of textiles and paper. Rapid radiatio...
Photochemistry is expected to change the chemical composition of upper atmospheres irradiated exoplanets through dissociation species, such as methane and ammonia, association others, hydrogen cyanide. Although primarily high altitude day side should be affected by photochemistry, it still unclear how dynamical processes transport photochemical species throughout atmosphere, these disequilibriu...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید