搜索结果: 1-15 共查到“理学 photochemical”相关记录64条 . 查询时间(0.151 秒)
Photochemical Hole-burning Spectroscopy of Bovine Rhodopsin and Bacteriorhodopsin
Photochemical Hole Spectroscopy Bovine Rhodopsin Bacteriorhodopsin
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2016/5/23
Photochemical hole burning has been observed at 1.5 K in bacteriorhodopsin (bR) and bovine rhodopsin at wavelengths spanning their lowest energy electronic absorption bands. Hole widths were approxima...
Photochemical Hole-Burning Spectroscopy of a Photosynthetic Reaction Center Mutant with Altered Charge Separation Kinetics:Properties and Decay of the Initially Excited State
PRIMARY ELECTRON-DONOR VIRIDIS REACTION CENTERS BACTERIAL REACTION CENTERS RHODOPSEUDOMONAS-VIRIDIS RHODOBACTER-SPHAEROIDES BURNED SPECTRA PURPLE BACTERIA LOW-TEMPERATURE ABSORPTION HETERODIMER
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2016/5/23
Photochemical hole-burning spectra have been obtained for the lowest energy electronic absorption band of the primary electron donor P of photosynthetic reaction centers (RCs) that exhibit different r...
Reversible Photochemical Holeburning in Rhodopseudomonas viridis Reaction Centers
Reversible Photochemical Holeburning Rhodopseudomonas viridis Reaction Centers
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2016/5/20
The change in absorption of the band assigned to the primary electron donor in R. Vfrid is reaction centers (P96Q) has been measured at 1.4-2.1 K following narrow bandwidth excitation at many waveleng...
Photochemical Hole-burning in Photosynthetic Reaction Centers
Photochemical Hole-burning Photosynthetic Reaction Centers
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2016/5/20
The change in absorbance (hole spectrum) of the primary electron donor (P870) in bacterial photosynthetic reaction centers has been studied at 1.5-2.1 K following narrow-band excitation at several wav...
Path-integral method for the source apportionment of photochemical pollutants
photochemical pollutants Path-integral method
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2015/8/6
A new, path-integral method is presented for apportioning the concentrations of pollutants predicted by a
photochemical model to emissions from different sources. A
novel feature of the method is th...
Photochemical bleaching of fluorescent dissolved organic matter in the subtropical North Pacific Ocean
marine humic-like fluorescent dissolved organic matter photobleaching solar irradiation size distribution hydrophobic/ hydrophilic properties Abbreviations: DIC dissolved in
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2017/4/10
We examined the molecular weight distribution of the fluorescence intensity of FDOMM and dissolved organic carbon
(DOC) concentrations in the subtropical western North Pacific, in order to characteri...
Photochemical grid model implementation and application of VOC, NOx, and O3 source apportionment
model implementation application
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2015/3/5
. For the purposes of developing optimal emissions
control strategies, efficient approaches are needed to identify the major sources or groups of sources that contribute to
elevated ozone (O3/...
Atmospheric dissolved iron deposition to the global oceans: effects of oxalate-promoted Fe dissolution, photochemical redox cycling, and dust mineralogy
global oceans oxalate-promoted Fe dissolution
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2014/12/12
Mineral dust deposition is suggested to be a significant atmospheric supply pathway of bioavailable iron
(Fe) to Fe-depleted surface oceans.
A method to represent ozone response to large changes in precursor emissions using high-order sensitivity analysis in photochemical models
represent ozone response precursor emissions high-order sensitivity analysis photochemical models
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2014/12/12
Photochemical grid models (PGMs) are used to simulate tropospheric ozone and quantify its response to emission changes. PGMs are often applied for annual simulations to provide both maximum concentrat...
Photochemical Hydrogen Abstraction and Electron Transfer Reactions of Tetrachlorobenzoquinone with Pyrimidine
Tetrachlorobenzoquinone Thymine Uracil Triplet state Hydrogen abstrac-tion Electron transfer Laser flash photolysis
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2012/4/5
Pentachlorophenol, a widespread environmental pollutant that is possibly carcinogenic to humans, is metabolically oxidized to tetrachloroquinone (TCBQ) which can result in DNA damage. We have investig...
Photochemical, microbial and metal complexation behavior of fluorescent dissolved organic matter in the aquatic environments
photodegradation microbial degradation metal complexation
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2017/4/12
Chemical properties and reactivity of fluorescent dissolved organic matter (FDOM) are examined in this paper. They
are key issues to understand the biogeochemical processes in the aquatic environment...
Evaluation of simulated photochemical partitioning of oxidized nitrogen in the upper troposphere
simulated photochemical oxidized nitrogen the upper troposphere
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2011/1/19
Regional and global chemical transport models underpredict NOx (NO + NO2) in the upper troposphere where it is a precursor to the greenhouse gas ozone. The NOx bias has been shown in model evaluations...
Source identification and budget analysis on elevated levels of formaldehyde within the ship plumes: a ship-plume photochemical/dynamic model analysis
Source identification budget analysis the ship plumes a ship-plume photochemical/dynamic model analysis
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2010/12/28
Elevated levels of formaldehyde (HCHO) along the ship corridors have been observed by satellite sensors, such as ESA/ERS-2 GOME (Global Ozone Monitoring Experiment), and were also simulated by global ...
A modelling study of photochemical regimes over Europe: robustness and variability
photochemical regimes Europe robustness and variability
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2010/11/3
The variability of the relative sensitivity of photochemical ozone formation to volatile organic compounds (VOC) and NOx emissions, the chemical regime, over Europe during summers 2001 to 2003 is simu...
Evaluated kinetic and photochemical data for atmospheric chemistry: Volume V – heterogeneous reactions on solid substrates
kinetic and photochemical data atmospheric chemistry heterogeneous reactions solid substrates
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2010/10/11
This article, the fifth in the ACP journal series, presents data evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry. It covers the heterogeneous processes on ...