The SAMs of 10-[4-(4-phenylazo)naphth-1-oxyl]-1-decanethioI (Compound 1) on gold were prepared. Their molecular structures were determined by surface enhanced Raman spectroscopy (SERS) and reflection absorption infrar...The SAMs of 10-[4-(4-phenylazo)naphth-1-oxyl]-1-decanethioI (Compound 1) on gold were prepared. Their molecular structures were determined by surface enhanced Raman spectroscopy (SERS) and reflection absorption infrared spectroscopy (RAIR).展开更多
The liquid steel will be leaked from the slit between the bottom of solidification mold and mother sheet during inversion casting process. By substitution of the actual liquid steel, the Ph-Sn alloy and the numerical ...The liquid steel will be leaked from the slit between the bottom of solidification mold and mother sheet during inversion casting process. By substitution of the actual liquid steel, the Ph-Sn alloy and the numerical simulation can be used to study the fluid flow in the inversion solidification mold, the mother sheet critical speed is determined for preventing the leakage from the slit of bottom. When the mother sheet speed is more than 0.06 m/s, Pb-Sn liquid alloy will not leak from the slit of the mold. Otherwise, the Ph-Sn liquid alloy can leak from the slit of the mold.展开更多
A number of chiral quaternary ammonium salts were synthesized from (1 R,2S)-(-)-1,2-diphenyl-2-aminoethanol and applied to the enantioselective alkylation
IN a previous paper, we have studied the energy transfer mechanism among the PBS-thy-lakoid complex in detail by using steady-state spectra and deconvolution techniques. The ex-perimental results indicated that the en...IN a previous paper, we have studied the energy transfer mechanism among the PBS-thy-lakoid complex in detail by using steady-state spectra and deconvolution techniques. The ex-perimental results indicated that the energy transfer from PBS to two reaction centers of PS Ⅰand PS Ⅱ were parallel, and confirmed the model which was suggested by Mullineaxu.展开更多
Up to now, the energy transfer study has been focused on the composite of isolated PBSs, PCand APC, as well as isolated PS Ⅱ and PS Ⅰparticles with time-resolved fluorescence tech-niques. Although these studies give...Up to now, the energy transfer study has been focused on the composite of isolated PBSs, PCand APC, as well as isolated PS Ⅱ and PS Ⅰparticles with time-resolved fluorescence tech-niques. Although these studies give more important information about the energy transferamong them, they cannot explain why the energy transfer from PBS to reaction centers展开更多
THE phycobilisomes (PBSs) of A. variabilis, like most other cyanobacteria and red alage,are hemi-discoidal. They contain various phycobiliproteins such as phycoerythrocyanin(PEC), C-phycocyanin (C-PC) and allophycocya...THE phycobilisomes (PBSs) of A. variabilis, like most other cyanobacteria and red alage,are hemi-discoidal. They contain various phycobiliproteins such as phycoerythrocyanin(PEC), C-phycocyanin (C-PC) and allophycocyanin (APC), and the energy transfer flowscan be examplified by the following scheme: PEC→C-PC→APC. Although the high resolu-tion crystal structures of PEC, C-PC and APC have been determined by X-ray method,展开更多
文摘The SAMs of 10-[4-(4-phenylazo)naphth-1-oxyl]-1-decanethioI (Compound 1) on gold were prepared. Their molecular structures were determined by surface enhanced Raman spectroscopy (SERS) and reflection absorption infrared spectroscopy (RAIR).
基金supported by the National Nature Foundation of China.
文摘The liquid steel will be leaked from the slit between the bottom of solidification mold and mother sheet during inversion casting process. By substitution of the actual liquid steel, the Ph-Sn alloy and the numerical simulation can be used to study the fluid flow in the inversion solidification mold, the mother sheet critical speed is determined for preventing the leakage from the slit of bottom. When the mother sheet speed is more than 0.06 m/s, Pb-Sn liquid alloy will not leak from the slit of the mold. Otherwise, the Ph-Sn liquid alloy can leak from the slit of the mold.
文摘A number of chiral quaternary ammonium salts were synthesized from (1 R,2S)-(-)-1,2-diphenyl-2-aminoethanol and applied to the enantioselective alkylation
文摘IN a previous paper, we have studied the energy transfer mechanism among the PBS-thy-lakoid complex in detail by using steady-state spectra and deconvolution techniques. The ex-perimental results indicated that the energy transfer from PBS to two reaction centers of PS Ⅰand PS Ⅱ were parallel, and confirmed the model which was suggested by Mullineaxu.
文摘Up to now, the energy transfer study has been focused on the composite of isolated PBSs, PCand APC, as well as isolated PS Ⅱ and PS Ⅰparticles with time-resolved fluorescence tech-niques. Although these studies give more important information about the energy transferamong them, they cannot explain why the energy transfer from PBS to reaction centers
基金This work was supported by the National Natural Science Foundation of China (Grant No. 39670065).
文摘THE phycobilisomes (PBSs) of A. variabilis, like most other cyanobacteria and red alage,are hemi-discoidal. They contain various phycobiliproteins such as phycoerythrocyanin(PEC), C-phycocyanin (C-PC) and allophycocyanin (APC), and the energy transfer flowscan be examplified by the following scheme: PEC→C-PC→APC. Although the high resolu-tion crystal structures of PEC, C-PC and APC have been determined by X-ray method,
