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原子吸附
相关语句
  atomic adsorption
     This work puts forward the concepts of vibration fingerprint of atomic adsorption state, the transmission and variance of the critical characteristics.
     在本章中提出了表面原子吸附态的振动指纹,临界性质的遗传与变异等的概念。
短句来源
     And what is more, this work predicted the adsorption of O atom on Ru (1121) stepped surface by the theoretical calculation and the inheritance and transformation of the vibration fingerprint property for atomic adsorption state.
     并且通过理论计算及原子吸附态振动指纹的遗传、遗变特性预言了氧原子在Ru(1121)台阶面的吸附.
短句来源
  atoms adsorbed
     The most probable structure is that Cs atoms adsorbed on hollow position of graphite layer with a interlayer distance of 2.80 A between Cs laver and graphite, and substrate has the same, structure as that of graphite bulk structure.
     该表面的最可能结构为Cs原子吸附在石墨面上芯位,Cs原子层与C原子层的层间距为2.80A,衬底石墨的结构与其体结构相同。
短句来源
     The I-V curves of the initial stage of porous silicon formation have been measured, and the amount of charge transfer for silicon atoms adsorbed different elements has been calculated.
     测量了在多孔硅形成初期阶段的电流I-电压V曲线,计算了硅表面原子吸附不同元素时电荷的转移量.
短句来源
  atom adsorption
     Caculation results reproduced the dynamic characteristics of atom adsorption on low index transition metals surface, such as the adsorption sites, the adsorption geometry, the binding energy and the eigenvibration etc.
     计算结果重现了原子吸附在过渡金属低指数面上的微观动力学特性,如吸附位、吸附几何、结合能、正则振动频率等。
短句来源
  “原子吸附”译为未确定词的双语例句
     The results indicate that the most stable structure is that H_2O is adsorbed through H atom of H_2O locating on the top of N atom of β-Si_3N_4(0001).
     结果表明:H2O分子通过H原子吸附在-βS i3N4(0001)面的N原子顶位时最有利;
短句来源
     Reconfiguration of GaAs(110)surface with the adsorption of Xe atoms
     Xe原子吸附对GaAs(110)表面重构的影响
短句来源
     On Ni(320) surface, the hydrogen atoms prefer to adsorb at B, LB, LB' and SB sites.
     在Ni(320)表面上,氢原子吸附到B、LB、LB′和SB。
短句来源
     Influence of Hydrogen Adsorption on Si(113) Surface
     H原子吸附对Si(113)表面的影响
短句来源
     The result on 6H SiC(0001) (3×3) R 30° surface obtained by low\|energy electron diffraction(LEED) shows that 1/3 monolayer Si atoms were absorbed on T\-4 hollow sites and bonded to three Si atoms in the first SiC bilayer with a distance of 0.171nm.
     低能电子衍射 (LEED)对 6H SiC(0 0 0 1) (3× 3)R30°表面的研究结果表明 ,该表面有 1/3单层的Si原子吸附在T4 空位上与第一个SiC复合层中的三个Si原子键接 ,它们之间的垂直距离为 0 171nm .
短句来源
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      atomic adsorption
    The conjugates have been characterized by spectrophotometry, voltammetry, atomic adsorption spectrometry, and nuclear magnetic relaxation.
          
    A one-dimensional model is developed to describe atomic diffusion in a graphite tube atomizer for electrothermal atomic adsorption spectrometry.
          
    This paper reports on the results of MNDO calculations of the atomic adsorption of oxygen and fluorine on the surface of armchair and zigzag single-walled carbon nanotubes with a cylindrical symmetry.
          
    The concentrations of selected pollutants (mineral oil, PAHs - polycycle aromatic hydrocarbons and Cd) were determined by UV spectrometer, HPLC and AAS (atomic adsorption spectrometer) spectrometer, respectively.
          
    Therefore we are allowed to conclude that the O-O interaction stabilizes atomic adsorption.
          
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      atoms adsorbed
    Both hypochlorite and chlorate inhibit the absorption through the oxidation of hydrogen atoms adsorbed at the electrode surface.
          
    t curves, which is due to concurrent reactions of electrochemical and chemical recombination involving hydrogen atoms adsorbed at the alloy surface.
          
    These sites cause different deformations of the crystal matrix by generating different local strains, which enhance the inhibiting effect of impurity atoms adsorbed on the surface.
          
    A kinetic model is proposed wherein the experimental results are explained by a change in the density of neutral acceptor and hole surface states formed by hydrogen, oxygen, and fluorine atoms adsorbed on the surfaces of pores.
          
    Experimental evidence has been obtained for the hydrodynamic flow of a 2D gas of hydrogen atoms adsorbed on the surface of liquid helium.
          
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      atom adsorption
    The hypothesis that the probability of the Eley-Rideal reaction decreases and the probability of atom adsorption increases with increase in the atom collision energy is confirmed.
          
    The effect of metal atom adsorption in a vacuum on the properties of a real germanium surface
          
    Within the framework of the electron density functional, a technique is developed for calculation of the adsorption energy and variation in the electron work function for metal substrates due to metal atom adsorption.
          
    For the solution of this problem the use of the atom adsorption method is very useful.
          
    For difluorination, a time delay between the two atom adsorption events is quantified.
          
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    The chemisorbed state of oxygen on a type of Ag0Y zeolite has been studied by temperature programmed desorption (TPD) and electron spin resonance (ESR).The samples were conditioned prior to the data runs by using the OROA cleaning cycle procedure. Which consisted of out-gassing (500℃,1×10-6torr, 2hr) , hydrogen reduction (400℃, 60ml H2/min, 1hr) , out-gassing again (500℃, 1×10~storr, 2 hr), and oxygen adsorption. The adsorption of oxygen on Ag0Y zeolite was carried out under different conditions: (a) from 500℃...

    The chemisorbed state of oxygen on a type of Ag0Y zeolite has been studied by temperature programmed desorption (TPD) and electron spin resonance (ESR).The samples were conditioned prior to the data runs by using the OROA cleaning cycle procedure. Which consisted of out-gassing (500℃,1×10-6torr, 2hr) , hydrogen reduction (400℃, 60ml H2/min, 1hr) , out-gassing again (500℃, 1×10~storr, 2 hr), and oxygen adsorption. The adsorption of oxygen on Ag0Y zeolite was carried out under different conditions: (a) from 500℃ to room temperature, and (c) isothermal adsorption at a given temperature. Under these conditions, two adsorbed states a and β are observed in TPD spectra. The peak temperatures of the a and β states are about 120-160 and 233-250℃evolution process is second order indicating an atomic adspecies on silver surface, the activation energy of desorption is found to be 19.69 Kcal/mol. The results obtained from ESR measurements indicate that the atomic adspecies is diamagnetic.Comparing the data of the thermal desorption study with those of ESR study, it may be concluded that the atomic adspecies is Oad.

    用程序升温脱附(TPD)和电子自旋共振(ESR)研究了氧在Ag~0Y上的化学吸附态。在TPD谱图上观察到α和β两种吸附态,相应的峰温分别是120—160℃和233—250℃。较仔细地研究了β态,其脱附过程为二级,表明氧以原子态吸附在银表面,脱附活化能为19.69千卡/克分子。ESR的测量结果表明,该原子吸附态为抗磁性的。比较ESR和TPD的结果得出:原子态吸附氧种为O_吸~-。

    By using EHMO method,the adsorption of hydrogen on GaAs (110) surface has beencalculated.The adsorption position of the H atoms has been determined.The results cal-culated show that the most stable positions are on the dangling bonds of surface As atoms,and the next stable positions are on the dangling bonds of surface Ga atoms.The hydrogenatoms form covalent bonds with both surface Ga and As atoms,and both the bond lengthsare 1.32 A approximately.The results also show that when hydrogen atoms are on the Asdangling...

    By using EHMO method,the adsorption of hydrogen on GaAs (110) surface has beencalculated.The adsorption position of the H atoms has been determined.The results cal-culated show that the most stable positions are on the dangling bonds of surface As atoms,and the next stable positions are on the dangling bonds of surface Ga atoms.The hydrogenatoms form covalent bonds with both surface Ga and As atoms,and both the bond lengthsare 1.32 A approximately.The results also show that when hydrogen atoms are on the Asdangling bonds the surface states due to surface Ga and As atoms will appear within the en-ergy gap. Besides,the results calculated show that hydrogen molecules could not be adsor-bed on GaAs (110) surface which is in agreement with experimental results available.

    采用EHMO方法计算了氢在GaAs(110)表面的吸附,确定了氢原子在表面的吸附位置.计算结果表明,Ga与As都能吸附氢原子,最稳定的吸附位置在As的悬键位,其次为Ga的悬键位;氢与表面原子形成共价键,键长均约为1.32A|°.当氢原子吸附于As的悬键位时,禁带中出现由As原子及Ga原子引入的表面态.同时计算表明GaAs(110)表面不能吸附分子态的氢,与已知的实验结果相符.

    A method-pulse of N_2O-chromatographic technique for determining active copper surface area of various copper catalysts is presented.It is

    根据氧化亚氮在表面零价铜上分解放出氮的特征反应,建立了脉冲氧化亚氮-色谱法测定各种含铜催化剂活性表面积的方法。对商品氧化铜、实验室中碳酸钠分解硝酸铜所制成的活性氧化铜、Raney 铜、工业脱氧铜催化剂、一氧化碳加氢低压合成甲醇ICI-51型催化剂以及目前正在开发的合金铜-锌催化剂等均进行了活性铜表面积的测量。结果表明,上述催化剂的活性表面积仅占总表面积的一部分,甚至是极少的一部分。约为3—30%。将一系列合金铜锌催化剂的活性表面积数值与其在实验室中一氧化碳加氢合成甲醇的催化活性进行关联,发现甲醇时空收率与催化剂的活性夜面积成正比,亦即反应速度与活性表面积呈线性关系。通过对催化剂表面铜使氧化亚氮分解并吸附氧的本质的探讨,证实了一个氧原子吸附在两个相邻的表面铜原子上的设想,为含铜催化剂对一氧化碳加氢合成甲醇反应活性组分问题的探讨提供了有用的信息。

     
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