搜索结果: 1-15 共查到“知识库 理学 Magnetic Fields”相关记录81条 . 查询时间(1.184 秒)
Energetics of Primary Charge Separation in Bacterial Photosynthetic Reaction Center Mutants:Triplet Decay in Large Magnetic Fields
horseradish peroxidase lignin peroxidase enzymatic oxidations N-demethylation methylene blue azure B azure C
2016/5/24
The triplet state of aromatic molecules forms and decays by intersystem crossing, as originally demonstrated by Kasha and Lewis. By contrast, the triplet state of the primary electron donor, 3 P, in p...
The Effect of Very High Magnetic Fields on the Reaction Dynamics in Bacterial Reaction Centers:Implications for the Reaction Mechanism
Reactioncenter Photosynthesis Bacterialphotosynthesis Delayedfluorescence Magnetic fieldeffect (Rb. sphaeroides)
2016/5/23
Magnetic field effects have proven to be a powerful tool for elucidating the mechanism of the initial charge separation and recombination steps in bacterial photosynthesis. Since the first data were o...
The Effect of Very High Magnetic Fields on the Delayed Fluorescence from Photosynthetic Reaction Centers
Reactioncenter Photosynthesis Bacterialphotosynthesis Delayedfluorescence Magneticfieldeffect (Rb. sphaeroides)
2016/5/23
Delayed fluorescence is observed from quinone-depleted Rhodobacter sphaeroides reaction centers due to re-formation of the excited state of the special pair electron donor from the initially formed ra...
Energetics of Initial Charge Separation in Bacterial Photosynthesis:The Triplet Decay Rate in Very High Magnetic Fields
Photosynthesis Electron transfer Reaction center Magnetic field effect primary electron acceptor primary electron donor quinone
2016/5/20
The triplet state of the primary electron donor is formed in bacterial reaction centers when electron transfer to the quinone is blocked. The relative quantum yield of formation and the rate of decay ...
The Use of Large Magnetic Fields to Probe Photoinduced Electron Transfer Reactions:An Example from Photosynthetic Reaction Centers
Large Magnetic Fields Photoinduced Electron Transfer Reactions Photosynthetic Reaction Centers
2016/5/20
We will outline an experimental approach that uses large magnetic fields and simple optical methods, combined with a method of data analysis, that is ideally suited for studying the mechanism of rapid...
The Effect of Large Magnetic Fields and the g-factor Difference On the Triplet Population in Photosynthetic Reaction Centers
Large Magnetic Fields g-factor Difference Triplet Population Photosynthetic Reaction Centers
2016/5/20
The tnplet population m reduced photosynthetic reaction cente rs IS found to Increase on application of large magnetic fields (1 S-14 hG) We conclude that the tnplet IS fo rmed by charge recombmatron ...
Anomaly disturbances of the magnetic fields before the strong earthquake in Japan on March 11, 2011
Magnetic field ULF magnetic field 2011 Japan earthquake
2015/8/24
One of the strongest earthquakes, with magnitude M 8.9, occurred at the sea bottom near to the east coast of Japan on March 11, 2011. This study is devoted to the investigation of anomaly disturbances...
Fast-ignition design transport studies: realistic electron source, integrated PIC-hydrodynamics, imposed magnetic fields
Fast-ignition design transport realistic electron source integrated PIC-hydrodynamics imposed magnetic fields
2012/5/29
Transport modeling of idealized, cone-guided fast ignition targets indicates the severe challenge posed by fast-electron source divergence. The hybrid particle-in-cell [PIC] code Zuma is run in tandem...
Magnetic Fields, Relativistic Particles, and Shock Waves in Cluster Outskirts
Magnetic Fields Relativistic Particles Shock Waves Cluster Outskirts
2011/10/20
It is only now, with low-frequency radio telescopes, long exposures with high-resolution X-ray satellites and gamma-ray telescopes, that we are beginning to learn about the physics in the periphery of...
Nuclear structure in strong magnetic fields: nuclei in the crust of a magnetar
Nuclear structure strong magnetic fields: nuclei crust magnetar
2011/10/14
Covariant density functional theory is used to study the effect of strong magnetic fields, up to the limit predicted for neutron stars (for magnetars $B \approx10^{18}$G), on nuclear structure. All ne...
Magnetic Fields at First Order Phase Transition: A Threat to Electroweak Baryogenesis
Magnetic Fields First Order Phase Transition:Electroweak Baryogenesis
2011/10/17
The generation of the observed baryon asymmetry may have taken place during the electroweak phase transition, thus involving physics testable at LHC, a scenario dubbed electroweak baryogenesis. In thi...
Evolution and Distribution of Magnetic Fields from AGNs in Galaxy Clusters II. The Effects of Cluster Size and Dynamical State
Galaxy Clusters Effects Cluster Size Dynamical State
2011/10/9
Theory and simulations suggest that magnetic fields from radio jets and lobes powered by their central super massive black holes can be an important source of magnetic fields in the galaxy clusters. T...
Magnetic Fields in Earth-like Exoplanets and Implications for Habitability around M-dwarfs
magnetic fields exoplanets habitability
2011/10/9
We present estimations of dipolar magnetic moments for terrestrial exoplanets using the Olson & Christiansen (2006) scaling law and assuming their interior structure is similar to Earth. We find that ...
Solar Magnetic Fields
Solar Magnetic Fields
2011/9/28
This review provides an introduction to the generation and evolution of the Sun's magnetic field, summarising both observational evidence and theoretical models. The eleven year solar cycle, which is ...
Three-Axis Measurement and Cancellation of Background Magnetic Fields to less than 50uG in a Cold Atom Experiment
Three-Axis Measurement a Cold Atom Experiment
2011/8/29
Many experiments involving cold and ultracold atomic gases require very precise control of magnetic elds that couple to and drive the atomic spins. Examples range from quantum transport,entanglement ...