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second bound
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     Second .
     二、破自造论。
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     The second;
     第二,专业设置随波逐流;
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     Upper Bound of the Second Characteristic Value of Higher Differential Equation
     高阶微分方程第二特征值的上界
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     On the Bound of P-Series
     关于P─级数的界
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     On the Upper Bound of Second Eigenvalues for Differential Equations with High Order
     一类高阶微分方程第二特征值的上界(英文)
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  second bound
The second bound depends on the structure of the set of subfunctions.
      
Our second bound for the first time does not require finite variance of S; it only involves terms of the form E[Sβ], where 1 >amp;lt; β >amp;lt; 2.
      
The fourth subsite relates to the second phosphate group of the second bound 3'-ribonucleotide.
      
The ?(m logn) lower bound is under the assumption thatn is a-priori known to the nodes, while the second bound is for the case in which such knowledge is not available.
      
First and second bound state for a three-body system assuming a local two-body potential with repulsive term
      
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To verify if the unique serum ALP with multiple antennary complex type sugar chain comes from liver cancer tissue, WGA(Wheat germ agglutinin)、LCA(Lens culinaris agglutinin)、ConA(concanavalin A) and DSA(Datura stromonium agglutinin) were used to study the alternation of N glycan structures in ALP from human liver cell cancer tissue in nude mice(LTNM). It was found that ALP from LTNM were separated by DEAE Cellulose (DE 52 ) chromatography into two or three active peaks. The first bound peak (76 16±10 86%)...

To verify if the unique serum ALP with multiple antennary complex type sugar chain comes from liver cancer tissue, WGA(Wheat germ agglutinin)、LCA(Lens culinaris agglutinin)、ConA(concanavalin A) and DSA(Datura stromonium agglutinin) were used to study the alternation of N glycan structures in ALP from human liver cell cancer tissue in nude mice(LTNM). It was found that ALP from LTNM were separated by DEAE Cellulose (DE 52 ) chromatography into two or three active peaks. The first bound peak (76 16±10 86%) was eluted by 0 15 mol/L NaCl and the second bound peak (23 84±11 16%) with 0 5 mol/L NaCl. The third active peak eluted by 1 mol/L NaCl was present in some of LTNM and was too less to study. The first and the second peaks were subjected to WGA、LCA、ConA and DSA immobilized lectin affinity chromatography to analyze their oligosaccharide structures respectively. The results indicated that half of the ALP in the first peak has biantennary complex type sugar chain;30% was high mannose (HM) type and hybrid (Hyb) type.The content of 2,4,2 triantennary and (or) 2,4 biantennary sugar chain (weak bound on DSA) was 26%.55% of the ALP in this peak contained core fucose (Fuc) and 98% contained “Bisecting” GlcNAc residue. The ALP in the second peak contained almost only multiple antennary complex type sugar chain. The content of biantennary complex type sugar chain, HM and Hyb were very low. There were some ALP with core Fuc in this peak. 28% of the ALP in this peak contained “Bisecting” GlcNAc residue. So the conclusion is that the ALP from LTNM does contain multiple antennary complex type sugar chain, and also core Fuc and “Bisecting” GlcNAc residues.

裸鼠人肝癌组织(humanLivercelcancerTissueinNudeMice,LTNM)中碱性磷酸酶(alkalinephos-phatase,ALP)在DE52纤维素离子交换层析柱上均出现两个活性峰,分别由0.15mol/LNaCl(峰1)和0.5mol/LNaCl(峰2)所洗脱,有些LTNM还会出现1mol/LNaCl洗脱峰。用麦胚凝集素(wheatgermagglutinin,WGA)、小扁豆凝集素(lensculinarisagglutinin,LCA)、伴刀豆蛋白A(concanavalinA,ConA)和蔓陀萝凝集素(daturastra-moniumagglutinin,DSA)固相凝集素亲和层析研究峰1和峰2中ALP的糖链结构发现:峰1中ALP主要为二天线复杂型糖链,高甘露糖型及杂合型糖链约占30%,2,4,2-三天线或2,4-偏二天线糖链约占26%,含核心岩藻糖(Fuc)和平分型GlcNAc残基的糖链含量分别为55%和98%。峰2中ALP几乎均为多天线复杂型糖链(95%),二天线复杂型糖链和高甘露糖型及杂合型糖链含量很少。此峰的ALP糖链均不含核心Fuc,但含平分型GlcNAc残?

In this paper, a new method-micrdialysis has been established to determine the interaction binding parameters of Cd2+ with human serum albumin (HSA). The recoveries of meta1 ions on microdialysis are Zn2+ 70.45% (RSD of 3.2%, n=6) and Cd2+ 58.36% (RSD 2.1%, n=6). The primary binding numbers and constants are: 1.81 and 3.55×105M-1 for Cd2+. Through competing binding experiments of these metal ions on HSA a way of judging the common binding sites and relative binding strength has...

In this paper, a new method-micrdialysis has been established to determine the interaction binding parameters of Cd2+ with human serum albumin (HSA). The recoveries of meta1 ions on microdialysis are Zn2+ 70.45% (RSD of 3.2%, n=6) and Cd2+ 58.36% (RSD 2.1%, n=6). The primary binding numbers and constants are: 1.81 and 3.55×105M-1 for Cd2+. Through competing binding experiments of these metal ions on HSA a way of judging the common binding sites and relative binding strength has been established. There is a common primary binding site of Cd2+ and Zn2+ on HSA. There is a common second binding site of mu1tip1e meta1 ions on HSA. Using this precise, quick and convenient method more than 3/4 protein can be saved.

本文建立了一种新的方法──微透析法用于研究金属离子铺与人血清蛋白(Human Serum Albumin,简称HSA)的相互作用.测定了金属离子Cd2+与HSA之间的结合位点数为1.81和结合常数3.55×105M-1微透析回收率Cd2+为58.36%(R.S.D2.1%,n=6).通过各种离子之间的竞争结合建立了通用的判定金属离子的共同结合位点及相对结合强度的方法.证明在HSA上Cd2+和Zn2+有共同的第一结合位点,它们在HSA上有一多元素的共同结合位点.应用本实验方法可以节约蛋白3/4以上,并具有精确、快速、方便等特点.

The properties of the exciton in the surface layer of crystals influence the properties of crystals very remarkably. In recent years,a lot of authors studied the surface polaron and the surface exciton. The properties of the exciton have been studied by many theoretical method by many investigators.Sumi et al. studied self-trapping of excitons (or electrons)interacting with phonons via short-range potential and found that the self-trapping depends strongly on the degree of lattice freedom.Chen et al. calculated...

The properties of the exciton in the surface layer of crystals influence the properties of crystals very remarkably. In recent years,a lot of authors studied the surface polaron and the surface exciton. The properties of the exciton have been studied by many theoretical method by many investigators.Sumi et al. studied self-trapping of excitons (or electrons)interacting with phonons via short-range potential and found that the self-trapping depends strongly on the degree of lattice freedom.Chen et al. calculated the ground state energy of the strongly bound exciton-phonon system by using a concise variational approach.The influence of the interaction between phonons of different wave vectors in the recoil process on the effective potential between electron and hole, the self-trapping energy, and the self-trapping condition of the exciton in polar crystals has been discussed by using a perturbation method by present authors.Using the nearest-neighbor tight-binding approximation Luban et al. calculated the lowest bound-state energy of the effective 1D electron Hamiltonian and the exciton binding energy is obtained.The results for the exciton binding energy are in very good agreement both with experiment and the results of other theoretical calculations.Kasapoglu et al. calculated the binding energy of the exciton in the symmetric and asymmetric quantum wells by using a variational approach.The third-order nonlinear optical absorptions in hyperbolic quantum wires are studied by Guo et al., with most emphasis devoted to the influence of excitons on the third-order nonlinear optical absorptions. The analytic form for the third-order nonlinear optical absorption coefficient of this system is derived by means of density matrix treatment.A variational calculation of the ground-state energy of neutral excitons and of positively and negatively charged excitons (trions) confined in a single-quantum well is presented by Riva et al. They studied the dependence of the correlation energy and of the binding energy on the well width and on the hole mass.By using the method of few-body physics, the binding energy spectra of the second bound state of a negatively charged exciton X - in a GaAs quantum dot with a parabolic confinement have been calculated as a function of the electron-hole mass ratio and of the dot radius by Xie. The properties of the exciton have been investigated by many methods. Many of these mainly concentrated attention on the weak-and intermediate-coupling cases and on the ground state energy. However, the exciton in strong-coupling polar crystals and the excited state energy of the exciton has not been studied so far. Recently we study the internal excited state of the weak-coupling surface magnetopolaron by means of Huybrechts's linear combination operator method. In this paper,the properties of internal excited state of the strong-coupling surface exciton in polar crystals are investigated by using the linear combination operator and the unitary transformation method and the excited state energy, the excitation energy and the mean number of phonon of the strong-coupling surface exciton are calculated. The results show that the self-energy of ground state and excited state, the excitation energy and the mean number of phonon of the strong-coupling surface exciton could be written as a series in α -1 s,the first term being proportion to,the coupling constant α s for Wannier surface exciton.

采用线性组合算符和幺正变换方法 ,研究极性晶体中强耦合表面激子内部激发态的性质。计算了表面激子的激发态能量、激发能量和平均声子数。

 
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