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离态
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     Calculations for [(1s2p)~3P,4d]~2P~0 and [(1s2s)~1S,5p] ~2P~0 autoionizing states of the lithium isoelctronic sequence
     LiⅠ等电子序列[(1s2p)~3P,4d]~2P~0及[(1s2s)~1S,5p]~2P~0自电离态的计算
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     Determination of dissociative K~+,Na~+,Ca~(2+) and Mg~(2+) in soil by SPE-ion chromatography
     固相萃取-离子色谱法测定土壤中游离态的K~+、Na~+、Ca~(2+)、Mg~(2+)
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     ~2P~0 autoionization states in BeⅡ
     BeⅡ的~2P~0自电离态的理论计算
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     Furthermore,energy dependence of asymmetry parameters of electrons ejected from Ba 6pjns autoionizing states to the 6s 1/2,5d 3/2,5d 5/2,and 6p 1/2 ion states has been studied.
     此外 ,还研究了Ba原子从 6pjns自电离态衰变到6s1/2 ,5d3/2 ,5d5/2 和 6 p1/2 各个电离限的弹射电子的非对称因子与激发能量的相互关系。
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     By use of the heavy ion()~(127)I with high change state (Q_1=15,Q_2=25) the (obtained) LET value is 86.7 MeV·mg~(-1)·cm~(-2) for 45° incidence of beam to the devices and with the reign of 20 μm in Si.
     当用高剥离态 (Q1 =1 5 ,Q2 =2 5 )重离子1 2 7I 45°倾斜入射时 ,已得到的LET值为 86 7MeV·mg- 1 ·cm- 2 ,Si中射程约 2 0 μm。
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     Measurements of Excitation Spectra of Highly Charged Atoms
     高电离态原子光谱测量
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     AUTOIONIZATION STATES ~1P~0 AND ~1S~e OF THE BERYLLIUM-LIKE IONS
     类铍离子的自电离态
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  apomorph
A pharmacological study of changes in central nervous system receptor responsiveness after long-term dexamphetamine and apomorph
      
The meaning of apomorph characters of the proboscis organ and of certain parts of the genital apparatus is discussed.
      
As the apomorph character state is ambiguous for some characters, different assumptions of directionality as well as deletions of some characters are tested in a number of analyses.
      


Ion dip spectroscopy, a folded OODR process with ion detection, has hitherto only been applied to the study of high-lying vibrational levels of ground state polyatomics. We have succeeded in employing this technique to obtain rotationally resolved spectra of NH3 A 1A'2' , a fast predissociating species. Conceivably,the method can be generalized to deal with a large number of other predissociating species,We first obtain high resolution REMPI spectra of C'←X transition via a 3 + 1 photon scheme by scanning a...

Ion dip spectroscopy, a folded OODR process with ion detection, has hitherto only been applied to the study of high-lying vibrational levels of ground state polyatomics. We have succeeded in employing this technique to obtain rotationally resolved spectra of NH3 A 1A'2' , a fast predissociating species. Conceivably,the method can be generalized to deal with a large number of other predissociating species,We first obtain high resolution REMPI spectra of C'←X transition via a 3 + 1 photon scheme by scanning a pulsed dye laser in the 430-480 nm. A sample spectrum of the 0-0 band is shown in Fig. 1. Rotational constants B0= 10.80 ?0.01 cm-1 and C0 =5.23 ■0.01cm-1 are obtained for the C' 1A'1 v2 = 0 level.pre-dissociation lifetimes are inferred from the rotational linewidth for the C' v'2 =0,1,2 levels. We then induce the C'→A stimulated emission by scanning a second dye laser from 560-580 nm while holding the first laser to a specific C'←X rovibronic transition. The competition between C'→A and the ionization process from C' state results in the ion dip spectra shown in Fig, 2. The rotational lines of C'→A 0-0, 1-1 and 2-2 bands are listed in Table 3. While selection rules allow Δv2 = 0, ±2 , ±4… transitions, Franck-Condon factor favors Δv2 - 0 only. Since both C'←X and C'→A processes belong to the parallel band, the selection rules of the sequential process are as follows; For any one of the following the IDS lines appearing in the transitions, spectrum will be.Case and Case Case All the ion dip lines we obtained conform to these selection rules (cf. Fig. 2).

NH_3(~1A_2~″)是一个快速预解离态,以往的光谱研究从未得到它的转动分辨光谱。我们用两个脉冲染料激光器研究了NH_3′→的3+1多光子电离光谱和NH_3→′→的折叠光学双共振多光子电离光谱,称为“离子凹陷光谱”。对前者观察到了较高分辨的转动光谱,得出′v_2~′=O的高精度转动常数。通过谱线宽度,得到了′v_2~′=0,1,2能级的预解离寿命。从离子凹陷光谱上,首次观察到了′→跃迁的0-0,1-1,2-2等带的转动分辨光谱。由双共振选择定则简化的光谱使漫散至~50cm~(-1)线宽的转动线得以分开,由此得到v_2~″=0,1,2能级的转动常数和各谱带的带原点。在消除功率加宽的情况下,测出v_2~′=1能级的寿命。这种方法对研究分子的快速预解离态有一定的普遍意义。

OOD-RMPI spectroscopy Of ammonia using the fast predissoeiating A state as the intermediate has proved to be a feasible approach to uncover hidden spectroscopic information on both the upper electronic states and the intermediate predissociating species. The rotationally resolved MPI spectra of NH_3 and ND_3 transition and correspondingly the rotational constants of ND_3 (?)′ ~1A_1′(v_2=0,1) haStebeen obtained. We found that only Q branch lines of NH_3 (?)→(?) 2-photon transition appeared when linearly polarised...

OOD-RMPI spectroscopy Of ammonia using the fast predissoeiating A state as the intermediate has proved to be a feasible approach to uncover hidden spectroscopic information on both the upper electronic states and the intermediate predissociating species. The rotationally resolved MPI spectra of NH_3 and ND_3 transition and correspondingly the rotational constants of ND_3 (?)′ ~1A_1′(v_2=0,1) haStebeen obtained. We found that only Q branch lines of NH_3 (?)→(?) 2-photon transition appeared when linearly polarised pumping light was used. At a series of different v_1 frequences, we can always get 2v_1+v_2 resonant with a fixed (?)→(?)′ rovibronic transition line by tunning v_2. The intensity envelope of the ion signal thus obtained represents the rotational line profile of (?) state. From the width of the profile predissociation life time of (?) is obtained.

NH_3(~1A″_2)是个快速预解离态,寿命约10~(-13)S。本文研究了以这个态为中间共振态的2+1+1双色双共振多光子电离过程。我们首先获得了NH_2和ND_3两分子→NH_3~+(或ND_3~+)+e跃迁的多光子电离光增,求出了ND_3v_2=),1两能级的转动常数,然后通过合理的实验设计,得到了NH_3分子跃迁转动线的增益线型。

A kinetic method tor distinguishing between dissociation and association lor hysteretic enzymes has been proposed. It has been shown that this method can be used not only to determine the kinetic constants for both dissociation and association states of hysteretic enzymes, but also to ascertain whether inactiva-tion of oligomer enzymes during denaturation is caused by dissociation or association.

分析了滞后酶解离-聚合的动力学过程,提出了区分解离和聚合机制的动力学方法。这一方法不仅可用于滞后酶本身的研究,确定滞后酶解离态和聚合态的动力学常数,也可以用于判别变性剂引起寡聚酶的失活过程是否由亚基的解离或聚合所致。

 
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