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偏振吸收
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  polarized absorption
     Low Temperature Polarized Absorption Spectra and Fine Structure for Ni ̄(2+) in Trigonal Ni_2CdCl_6.12H_2O Single Crystals
     低温下单晶Ni_2CdCl_6·12H_2O中Ni~(2+)离子偏振吸收谱及精细
短句来源
     Judging from the absorbancy, shape and band position of Cr~(3+) polarized absorption spectra, it is proposed that the Cr~(3+) ions occupy the D_4 symmetry site in clinopyroxenes.
     通过对单斜辉石系列钠铬辉石-硬玉样品中Cr~(3+)偏振吸收谱的谱带强度、形状及位置的分析,提出:这类矿物晶体中Cr~(3+)应处于四角畸变D_4对称晶场的晶位。
短句来源
     Normal and polarized absorption spectra of crystal Cr:Mg_2SiO_2 at both room temperature and liquid-nitrogen temperature are obtained, and the characteristics of the absorption bands in the visible and near-infrared range are described. The mechanism of some bands is analyzed, based on the theoretical results of the MS-X_αstudy on CrO_6~(9-) and CrO_4~(4-).
     本工作研究了Cr:Mg_2SiO_4晶体在室温和液氮温度下的常规吸收谱和偏振吸收谱,系统描述了该晶体在可见光和近红外波段各吸收带的特征,并根据CrO~6~(9-)和CrO_4~(4-)的MS-Xα计算结果对一些吸收带的机制作了初步分析。
短句来源
     The polarized absorption spectra were investigated at room temperature,and the polarized absorption cross sections were calculated.
     在室温下测试了晶体的偏振吸收谱,对谱图中的7个吸收峰进行了能级归属,并计算了偏振吸收截面.
短句来源
     DETERMINATION OF THE SITE SYMMETRY AND ANALYSIS OF THE POLARIZED ABSORPTION SPECTRA OF Cr~(3+) IONS IN CLINOPYROXENES
     天然单斜辉石中Cr ~(3+)的晶位对称性和偏振吸收谱的分析
短句来源
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  “偏振吸收”译为未确定词的双语例句
     The polarized emission spectra measurements of ZnWO4:Ho3+,Yb3+crystalpumped by 943nm were performed.
     测试 ZnWO4:Ho3+,Yb3+晶体的偏振吸收谱和偏振荧光光谱,并分析了 ZnWO4晶体中 Yb3+的能级结构。
短句来源
     The results of the calculation based on crystal field theory is in good agreement with experiment for M_1 lattice site and predicts the existence of a 1348cm~(-1) spectral line for M_2 lattice site.
     结果表明M_1晶位的计算结果与电子偏振吸收谱实验符合较好,而对M_2晶位,计算结果可以予言应存有一条1348cm~(-1)的谱线。
短句来源
     In order to determine the energy levele diagram of Cr3+ ions in chrysoberyl, the splitting of the 4T2 and 4T1 are calculated. We have discussed the anisotropic transition intensities of corresponding absorption bands and have found a method to fit the spectra.
     为从偏振吸收谱上确定BeAl_2O_4:Cr(3+)的能级图,本文计算了4~T_2和4~T_1的分裂,找到了对谱方法,得到了表征能级分裂的参量K_1和K_2的值。
短句来源
     Based on this matrix,the absorption spectra and the fine structure of Ni2+ in Ni2CdCl6.12H2O are studied. The restults agree well with the experimental data.
     从理论上研究了低温下Ni2CdCl6·12H2O中Ni2+离子的偏振吸收谱和精细分裂谱,理论结果与实验相符合。
短句来源
     Nd∶GdVO 4 crystal has been grown by using Czochralski method. The polarization absorption and emission spectra of Nd∶GdVO 4 crystal have been measured. The wavelength of the main absorption peak is centered at 808.5nm,and that of the emission peak is centered at 1064nm.
     本文报道了用 Czochralski 方法生长 Nd∶ Gd V O4 晶体,测量了该晶体的偏振吸收谱和荧光谱,表明晶体在808 .5nm 有吸收峰,其发射波长在1064nm 。
短句来源
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  相似匹配句对
     ABSORPTION SPECTRUM INSTRUMENT OF HIGH PRESSURE POLARIZATION AND LOW TEMPERATURE AND THEIR EXPERIMENTAL STUDY
     高压偏振·低温吸收光谱仪及实验研究
短句来源
     ON THE POLARIZED ABSORPTION OF MICROWAVE BY BOUND WATER MOLECULES IN FIBRE
     纤维中束缚水分子的偏振吸收
短句来源
     K uptake by spring maize is significantly improved by potassium fertilizer and established the dynamic model of N.
     K的吸收。 建立了N.
短句来源
     The Polarization of Light in the Rainbows
     虹霓的偏振
短句来源
     Showing- Colour Polarization
     显色偏振
短句来源
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  polarized absorption
New methods were suggested for measuring the local-field parameters in the Dho phase from intensities and positions of the polarized absorption bands taking into account the mixing of molecular excitations.
      
The polarized absorption and emission spectra of these crystals with different activator concentrations and the decay kinetics of the 3H4 and 3F4 excited states of Tm3+ ions at 300 K were investigated.
      
Polarized absorption spectroscopy was employed to investigate the anisotropy of the polymer film during irradiation of the excitation light.
      
The polarized absorption spectra were investigated with high optical resolution at helium temperatures and in external magnetic fields up to 6.6T parallel as well as perpendicular to the trigonal axis.
      
Polarized absorption spectra of Co2+ in Na2Cd3Cl8 single crystals
      
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In this paper the polarized absorption of micro wave, including infrared, by water molecules in fibre is discussed. On the conception of rotater model of water molecules in fibre, the rotational energy level of water molecules in fibre and the absorption spectrum of microwave, including infra-red, are calculated by the general method of quantum mechanics. Experiments show that when the angle between the electric vector of microwave and the axis of fibre changes, the absorption of microwave in bound water will...

In this paper the polarized absorption of micro wave, including infrared, by water molecules in fibre is discussed. On the conception of rotater model of water molecules in fibre, the rotational energy level of water molecules in fibre and the absorption spectrum of microwave, including infra-red, are calculated by the general method of quantum mechanics. Experiments show that when the angle between the electric vector of microwave and the axis of fibre changes, the absorption of microwave in bound water will be changed according to the square of cosine law, whereas the absorption of microwave in approximate free water molecules mains unchanged. The law of polarized absorption is testified by the theoretical deduction; besides, the absorption coefficients of microwave both in bound water molecules and in approximate free water molecules are discussed.

本文讨论纤维中水分子对微波(及红外)的偏振吸收现象.提出了纤维中水分子的转体模型,用量子力学的一般方法,推算了纤维中水分子的转动能级及微波(红外)吸收波谱.实验表明,当微波的电矢量与纤维轴的夹角变化时,束缚水分子对微波的吸收将按余弦平方律变化,而近自由水分子的吸收则不变化.理论演绎,求证了这种偏振吸收规律,并讨论了束缚水分子和近自由水分子对微波的吸收系数.

Crystal field spectrum of Fe~(2+) in the iron—olivin has been calculated by crystal field theory. The Symmetry of M_1 lattice site which is 6—fold coordinated approaches to D_(4h), the symmetry of M_2 lattice site approaches to C_(3v). Crystal field spectrum of Fe~(2+) at M_1 and M_2 lattice sites has been calculated respectively by selecting only one parameter. The results of the calculation based on crystal field theory is in good agreement with experiment for M_1 lattice site and predicts the existence of...

Crystal field spectrum of Fe~(2+) in the iron—olivin has been calculated by crystal field theory. The Symmetry of M_1 lattice site which is 6—fold coordinated approaches to D_(4h), the symmetry of M_2 lattice site approaches to C_(3v). Crystal field spectrum of Fe~(2+) at M_1 and M_2 lattice sites has been calculated respectively by selecting only one parameter. The results of the calculation based on crystal field theory is in good agreement with experiment for M_1 lattice site and predicts the existence of a 1348cm~(-1) spectral line for M_2 lattice site.

本文用晶体场理论,计算了铁橄榄石的晶体场能谱。处于氧六次配位的Fe~(2+)的M_1晶位,对称性取D_(4h)近似;而处于氧六次配位的Fe~(2+)的M_2晶位,对称性取C_(30)近似。在只有一个选择参数下,分别计算了Fe~(3+)离子在M_1和M_2晶位上的晶场能谱。结果表明M_1晶位的计算结果与电子偏振吸收谱实验符合较好,而对M_2晶位,计算结果可以予言应存有一条1348cm~(-1)的谱线。

Piemonite is a Mn~(3+) bearing nesosilicate structural mineral with space group P2_1/m.The formula can be written as Ca_2(Al,Fe,Mn)_3[SiO_4][Si_2O_7]O(OH). Under a polarizing microscope,the pleochroism formulas are usually:α-Yellow, β-Pink,γ-red.The polarized absorption spectrum for piemonite from Shilu Mine, Hainan Island,Kwangtung Province,containing Mn~(3+)(0.39)and Fe~(3+)(0.71)is illustrated in Fig 2.The three polarized spectra are distinctive,and contain intense absorption bands in the visible regions.Absorption...

Piemonite is a Mn~(3+) bearing nesosilicate structural mineral with space group P2_1/m.The formula can be written as Ca_2(Al,Fe,Mn)_3[SiO_4][Si_2O_7]O(OH). Under a polarizing microscope,the pleochroism formulas are usually:α-Yellow, β-Pink,γ-red.The polarized absorption spectrum for piemonite from Shilu Mine, Hainan Island,Kwangtung Province,containing Mn~(3+)(0.39)and Fe~(3+)(0.71)is illustrated in Fig 2.The three polarized spectra are distinctive,and contain intense absorption bands in the visible regions.Absorption with this region is mainly due to electronic transitions between d orbital energy levels.This explains the occurrence of pleochroism in piemonite. Both theoretical calculation and experiment band position are compared in Table 5.The calculation results are in agreement with those of experiments.The correct energy order may be deduced from the calculation of crystal field theory.The 1x~2-y~2>is the ground state.R.G.Burns mistook xy for the ground state.The crystal field stabilization energy 40.5 kcal/mol in piemonite may be deduced from the energy level diagram in which the 17 kcal/mol derived from additional crystal field stabilization energy induced by the Mn~(3+) ion occurring is a stronly distorted coordination site.Thus,the Mn~(3+) may stabilize in piemonite rather than undergo oxidation or disproportionation. The distribution of Mn~(3+) gives the following site preferences:M(3)>M(2) >M(1).

通过对产自海南岛石碌铁矿的红帘石进行偏振吸收光谱测量和晶体场理论计算,说明了红帘石具有多色性的本质和 Mn~(-)在红帘石结构M(3)中 d 轨道能级分裂的特征以及稳定的原因.

 
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