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转移电子
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  transferred electron
     Dynamic Simulation Investigation on GaAs/AIAs Heterostructure Intervalley Transferred Electron Devices
     GaAs/AlAs异质谷间转移电子器件动态工作模式的模拟研究
短句来源
     Electronical Tuning in Transferred Electron Oscillators
     转移电子振荡器电子调频
短句来源
     Microwave Oscillation of GaAs/AlAs Heterostructure Intervalley Transferred Electron Devices
     GaAs/AlAs异质谷间转移电子器件微波振荡特性的研究
短句来源
     A software to simulate the electron moving in heterostruc ture intervalley transferred electron devices is written down through the combination of energy band mixing theory and Monte Carlo simulation.
     结合能带混合隧穿共振理论和 Monte Carlo模拟计算 ,编制异质谷间转移电子器件的模拟软件。
短句来源
     → O-2. It suggests that MnO2 can strongly catalyze this reaction and thus more energy is evolved as it proceeds on MnO2. The electron-transfer from MnO2 to O2 is a process of delocalization, that is, the one transferred electron is not only from the Mn atom at adsorption site but also from the Mn atoms of the bulk MnO2 crystal cluster.
     氧气与MnO2固体间发生了单电子转移,氧气得到电子被还原成O-2,转移电子属于整个体系,具有离域性.
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  transfer electron
     A Spectroelectrochemical Cell was made successfully from cut sections of Reticulated Vitreous Carbon (RVC). Normal Potential E~(0′) and Transfer Electron Number n of redox system K,Fe(CN)_6/K_3Fe(CN)_6 was determined with this Optically Transparent Electrodes.
     本文采用多孔玻碳切片作为电极材料,制作成功玻碳光透电极,并以K_4Fe(CN)_6K_3Fe(CN)_4作为氧化还原体系,测定了式量电位E°′与转移电子数n。
短句来源
     A description of the experimental technique of saturation transfer electron paramagnetic resonance (ST-EPR) is given by using maleimide spin labeled hemoglobin as an example. It relates to the main points of the sample preparation and the experimental measurement as well as determination of the parameters of ST-EPR spectrum.
     本文以马来酰亚胺自旋标记的人血红蛋白样品为例,阐述了饱和转移电子顺磁共振实验技术,其中包括样品制备、测量要点和波谱参数的测定。
短句来源
  “转移电子”译为未确定词的双语例句
     It was determined that the match ratio of complex compound was 1:2.
     经实验测定 ,其配合物的配合比为 1∶2 ,电极反应转移电子数为 3.9。
短句来源
     When an aqueous solution of the four components Ru(bpy)32+/bisviologen compounds/ EDTA/K2 PtCl6/is illuminated by visible light,it is found that the yields of H2 formation decreased for higher pH value,in particular for n=3 and 4.High pH value is favourable to the intramolecular association of cation biradical,leading to the formation associated ion,which has low ability of electron transfer.
     用可见光辐照Ru(bpy)_3~2+/双紫精/EDTA/K_2PtCl_6的水溶液,发现在较高的pH条件下,产H_2率显著减小(特别对n=3,4)。 较高的溶液pH值有利于分子内缔合的形成并减弱其转移电子的能力。
短句来源
     The calculated results indicated that the lumines- cence originates from the electronic transition from the thiophenol ring to the pyridine ring.
     结果表明,电子在基态与激发态间的跃迁,主要是在配体8-巯基喹啉(tq)环内的电荷转移,电子从含S的苯硫酚环转移至含N的吡啶环上;
短句来源
     Monte Carlo Simulation of Heterostructure Intervalley Transferred Devices
     异质谷间转移电子器件的Monte Carlo模拟研究
短句来源
     A new off-line electronic cash scheme with Transferability
     一个离线可转移电子现金方案
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  transferred electron
Consideration of the charge transfer between the complex and the outer-sphere water molecules has no significant effect on the calculated electronic spectrum; the transferred electron density is below 1e.
      
This value (6 cm-1 for one transferred electron) is identical to the downshift of the Ag(2) mode in alkali metal fullerides with ionic bonding.
      
The transferred electron does not localize on the proton, but tunnels directly from the substrate to the ferric active site in a concerted proton tunneling-electron tunneling (PTET) process.
      
The197Au M?ssbauer spectrum obtained from Au(5 ?)/Fe(8 ?) is entirely magnetic at 16 K, suggesting the existence of a magnetic hyperfine interaction at197Au nuclei through the transferred electron spin polarization.
      
Theoretical and experimental investigations of millimeterwave GaAs second harmonic transferred electron device (TED) oscillators using separate circuits for frequency and power optimization, are described.
      
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  transfer electron
Semi-reduced species formed by the reaction of e-aq with TNA (k = 1.6 × 1010 dm3 mol-1 s-1) was found to be a good reductant which could transfer electron to methyl viologen.
      
(CH3)2˙COH radicals were found to transfer electron to 3-PCA at all the pH values tested and by making use of changes in the absorption spectra, pKa values of the semi-reduced species were determined to be 4.5 and 10.6.
      
(CH3)2·COH radicals were found to transfer electron to 3-PCA at all the pH values tested and by making use of changes in the absorption spectra, pKa values of the semi-reduced species were determined to be 4.5 and 10.6.
      
It is shown that both large-transfer electron-proton scattering and large-angle proton-proton scattering may be consistent with, or close to, the lower limits obtained from dispersion theory.
      
Chronoamperometric study of proton transfer/electron transfer in solid state electrochemistry of organic dyes
      
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The features and the stability of four kinds of stationary domains in transferred electron devices have been investigated. The four kinds of stationary domains are: (1) A domain is triggered near the cathode, and travels toward the anode where it is trapped as a stationary domain, (2) A domain is triggered directly near the anode where it grows without traveling, and then settles as a stationary domain, (3) A domain is triggered near the cathode; then because the bias voltage increases further, the domain extends...

The features and the stability of four kinds of stationary domains in transferred electron devices have been investigated. The four kinds of stationary domains are: (1) A domain is triggered near the cathode, and travels toward the anode where it is trapped as a stationary domain, (2) A domain is triggered directly near the anode where it grows without traveling, and then settles as a stationary domain, (3) A domain is triggered near the cathode; then because the bias voltage increases further, the domain extends over the notch near the cathode, and so a stationary domain occurs, and (4) A stationary domain is formed due to a large inhomogeneous active layer.

本文讨论了在转移电子器件中静止畴的四种模式的形成原因、特点及共稳定性。这四种静止畴的模式是:1.畴从阴极产生,向阳极渡越,然后静止在阳极的阴极触发静止畴;2.畴直接也阳极产生,没有渡越,然后在阳极静止的阳极静止畴;3.在外加偏压增高以后,畴展宽到整个样品以后产生的静止畴;4.由于大的非均匀有源区引起的静止畴。前两种模式已有作者报导,后两种模式是本文重点讨论的内容。另外,还对这四种静止畴的稳定性、负阻与频率的依赖关系、开态电流降落及畴承受电压能力等进行了讨论,并作了比较,认为第四种静止畴模式优点较明显。

The three viologen-(CH2)n-viologen,n=2,3 and 4 have been synthesized,and also studied by cyclic volta-mmetry,ESR and uv-visible spectra respectively.Cyclic voltammetry shows that bisvio-logen compounds involve bielectron transfer process during the course of the eletrochemical reduction.The study of ESR indicates that the cation biradicals of the bisviologen compounds were formed by photoreduction of V2+-(CH2)B-V2+.Uv-visible and ESR also show that these doubly reduced species (n=3,4) occur intramolecular association...

The three viologen-(CH2)n-viologen,n=2,3 and 4 have been synthesized,and also studied by cyclic volta-mmetry,ESR and uv-visible spectra respectively.Cyclic voltammetry shows that bisvio-logen compounds involve bielectron transfer process during the course of the eletrochemical reduction.The study of ESR indicates that the cation biradicals of the bisviologen compounds were formed by photoreduction of V2+-(CH2)B-V2+.Uv-visible and ESR also show that these doubly reduced species (n=3,4) occur intramolecular association between the two radical moieties of bireduce form.In contrast,V+-(CH7)2-V+does not present any intramolecular association because too short methylene chain is not favourable to in-tramoleclar association. When an aqueous solution of the four components Ru(bpy)32+/bisviologen compounds/ EDTA/K2 PtCl6/is illuminated by visible light,it is found that the yields of H2 formation decreased for higher pH value,in particular for n=3 and 4.High pH value is favourable to the intramolecular association of cation biradical,leading to the formation associated ion,which has low ability of electron transfer.In the higher pH value aqueous solution,the low rate of H2 generation was mainly interpreted by an associated ion which almost does not have ability of reduction of water.These results suggest that molecule of the bisviologen compounds will be the suitable,in particular for n=2,in connection with an application as a direct bielectronic relay.

用循环伏安、ESR、电子光谱分别对所合成的三种双紫精化合物——(n=2,3,4)进行了研究。循环伏安表明,双紫精在电化学还原过程中呈双电子转移;而ESR表明,双紫精经光化学还原形成双基自由基。电子光谱和ESR均得出,双紫精的(n=3,4)双还原态出现分子内缔合,而V~+-(CH_2)_2-V~+由于其太短的次甲基链而不能形成分子内缔合。 用可见光辐照Ru(bpy)_3~2+/双紫精/EDTA/K_2PtCl_6的水溶液,发现在较高的pH条件下,产H_2率显著减小(特别对n=3,4)。较高的溶液pH值有利于分子内缔合的形成并减弱其转移电子的能力。在较高pH值时的低产氢率主要是缔合型离子几乎不具备还原水的能力所致。本工作认为,双紫精类化合物(尤其是n=2)作为双电子转移中继物是可行的。

A description of the experimental technique of saturation transfer electron paramagnetic resonance (ST-EPR) is given by using maleimide spin labeled hemoglobin as an example. It relates to the main points of the sample preparation and the experimental measurement as well as determination of the parameters of ST-EPR spectrum. In addition, the present paper goes further into the problems about the influences of the experimental conditions on ST-EPR spectra.

本文以马来酰亚胺自旋标记的人血红蛋白样品为例,阐述了饱和转移电子顺磁共振实验技术,其中包括样品制备、测量要点和波谱参数的测定。并探讨了实验条件对波谱的影响。

 
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