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电子自旋共振    
技术
esr
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  “电子自旋共振技术(esr)”译为未确定词的双语例句
    METHODS The reaction product and free radical intermediate in the reaction medium with or without antioxidants and other moderators was detected by spectrophotometry and electron spin resonance(ESR).
    方法 用分光光度法和电子自旋共振技术 (ESR)检测加入或未加抗氧化剂等调节物的反应体系中反应产物及自由基中间产物的生成情况。
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  technology
NEW TECHNOLOGY FOR DRUG DISCOVERY BASED UPON INSERTION OF LIGANDS INTO GENE SEQUENCES BY NUCLEAR RECEPTOR PROTEINS
      
Two scheduling problems in group technology with deteriorating jobs
      
This paper considers single-machine scheduling problems in group technology with the jobs' processing times being simple linear functions of their start times.
      
Impact of operating costs on investment strategies in new technology adoption with a further new technology anticipated
      
This paper studies a dynamic duopoly model in which two firms compete in adoption of current technology with a further new technology anticipated.
      
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  technique
A number of q,t-analogues of this fact were conjectured in [10]; the present paper proves most of those conjectures, as well as some new identities suggested by the proof technique.
      
In this paper we present a technique for proving bounds of the Boas-Kac-Lukosz type for unsharply restricted functions with nonnegative Fourier transforms.
      
This technique gives rise to several "epsilonized" versions of the Boas-Kac-Lukosz bound (which deals with the case f(u) = 0, |u| ≥ 1).
      
The basic technique uses factorization of group elements and Gel'fand-Tsetlin bases to simplify the computations, and may be extended to treat the computation of Fourier transforms of finitely supported distributions on the group.
      
Our technique applies, in particular, to the Shannon and Journe wavelet sets.
      
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  method
In this note we present a very simple method of proving that some hyperbolic manifoldsM have finite sheeted covers with positive first Betti number.
      
The method applies to the standard arithmetic subgroups ofSO(n,1) (a case which was proved previously by Millson [Mi]), to the non-arithmetic lattices inSO(n,1) constructed by Gromov and Piatetski-Shapiro [GPS] and to groups generated by reflections.
      
(HereM3 denotes the vector space of 3×3 matrices over k andp>amp;gt;3.) The method of proof involves an induction, and is potentially of wide applicability.
      
The proof is based on a variant of Moser's method using time-dependent vector fields.
      
In the second part we apply this method to obtain pseudo-Riemannian homogeneous manifolds with real Killing spinors.
      
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  techniques
Commonly used techniques such as circular convolution and symmetric extension can produce undesirable edge effects which propagate into the interior of the transformed data as the number of DWT iterations increases.
      
The fiberization of affine systems via dual Gramian techniques, which was developed in previous papers of the authors, is applied here for the study of affine frames that have an affine dual system.
      
Gramian techniques are also used to verify whether a dual pair of affine frames is also a pair of bi-orthogonal Riesz bases.
      
In this article we investigate the asymptotic behavior of and using the dynamical system techniques: the pressure function and the variational principle.
      
As an application of these techniques, we prove that the set of MRA wavelets is arcwise connected in L2(R).
      
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  其他


AIM To study the effect of the natural flavonoid antioxidants 〔green tea polyphenol(GTP),(-) epigallocatechin 3 gallate(EGCG), quercetin and rutin〕 on the co oxidation of four compounds (guaiacol, benzidine, p phenylenediamine and o dianisidine) mediated by lipoxygenase for investigating the possibility that the mechanism of their anti oxidation is based on the inhibition of lipoxygenase co oxidation. METHODS The reaction product and free radical intermediate in the reaction medium with or without...

AIM To study the effect of the natural flavonoid antioxidants 〔green tea polyphenol(GTP),(-) epigallocatechin 3 gallate(EGCG), quercetin and rutin〕 on the co oxidation of four compounds (guaiacol, benzidine, p phenylenediamine and o dianisidine) mediated by lipoxygenase for investigating the possibility that the mechanism of their anti oxidation is based on the inhibition of lipoxygenase co oxidation. METHODS The reaction product and free radical intermediate in the reaction medium with or without antioxidants and other moderators was detected by spectrophotometry and electron spin resonance(ESR). RESULTSGTP, EGCG, quercetin and rutin all reduced the co oxidation reaction rate and the amount of oxidative product and free radical intermediate of the tested four compounds mediated by soybean lipoxygenase(SLO). The 50% inhibition concentration(IC50) of these natural antioxidants for the co oxidation of guaiacol mediated by SLO was 8.2 mg·L-1, 17.4 μmol·L-1, 41.4 μmol·L-1 and 46.1 μmol·L-1, respectively, which was significant lower than reduced glutathion, dl dithiothreitol, butylated hydroxyanisole and gossypol. CONCLUSION GTP, EGCG, quercetin and rutin all can obviously inhibit the co oxidation of four compounds including guaiacol and benzidine catalyzed by SLO.

目的 研究天然黄酮类抗氧化剂茶多酚(GTP)、表没食子儿茶素没食子酸酯 (EGCG)、槲皮素、芦丁对脂氧合酶介导愈创木酚、联苯胺、对苯二胺和二甲氧联苯胺协同氧化的影响 ,初步探讨此类抗氧化剂通过抑制脂氧合酶协同氧化作用的机制发挥其抗氧化作用的可能性。方法 用分光光度法和电子自旋共振技术 (ESR)检测加入或未加抗氧化剂等调节物的反应体系中反应产物及自由基中间产物的生成情况。结果 GTP ,EGCG ,槲皮素、芦丁均可降低大豆脂氧合酶 (SLO)介导的受试化合物协同氧化反应的速度 ,以及氧化产物和自由基中间产物的生成量。其对SLO介导愈创木酚氧化的半数抑制浓度 (IC50 )分别为 8.2mg·L- 1,17.4 ,4 1.4和 4 6 .1μmol·L- 1,均有显著意义地低于还原型谷胱甘肽、二硫苏糖醇、丁基羟基茴香醚、棉子酚。结论GTP ,EGCG ,槲皮素、芦丁均可明显抑制SLO介导愈创木酚、联苯胺等的氧化活化

 
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