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mn离子
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  mn ion
     This is because that Mn ion and Co ion have different electronic structures and spin states.
     这是由于Mn离子和Co离子具有不同的电子结构和自旋态。
短句来源
     The correlation between organic material and Fe ion was not significant. The correlation between Mn ion and organic material in sediment was minus(R2=0.425,P<0.05),and there was not an obvious correlation between organic material and temperature.
     Fe离子与沉积物中有机质相关不显著,Mn离子与沉积物中有机质呈负相关(R2=0.425,P<0.05); 有机质和温度之间没有明显的相关性。
短句来源
     Furthermore, introduction of magnetic ions (Mn ion) in to the B niche, would not only affect its dielectric properties, but induce magnetic properties due to double exchange effect caused by Mn~(3+)/Mn~(4+).
     然而,B位磁性离子(Mn离子)的引入,不仅会影响材料的介电性能,还可能由于存在Mn~(3+)/Mn~(4+)双交换作用以及-Mn-O-Mn-电子输运通道的形成,对材料的导电性能和磁性能产生影响。
短句来源
     EFFECT OF Mn ION IN NANO-DOPANT ON BaTiO_3-BASED DIELECTRICS FOR MULTILAYER CERAMIC CAPACITOR
     纳米掺杂剂中Mn离子对BaTiO_3基多层陶瓷电容器瓷料的影响
短句来源
     Mn ion is preferentially acted as donor when the concentration of Mn is small,which can improve the ferroelectric properties of PZT films.
     试验结果表明:当Mn离子含量较少时,Mn在PZT中主要表现施主掺杂特性,薄膜铁电性能提高; 而当浓度增大时,薄膜性能降低。
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  “mn离子”译为未确定词的双语例句
     In the present experiment,the effect of Mn-ion on the formation of 2223 phasein Bi-system superconductor was investigated by doping Mn-ion into Bi-Sr-Ca-Cu-O Superconductor.
     通过对Bi-Sr-Ca-Cu-O超导体系中掺杂Mn,以探讨Mn离子对Bi系超导2223相形成的影响。
短句来源
     Raman Spectroscopy Study on Ce:BaTiO 3 and Mn + Ion Implante Ce:BaTiO 3
     四方相BaTiO_3:Ce及Mn离子注入的BaTiO_3:Ce的拉曼散射的研究
短句来源
     In this paper, the crystal structure and magnetic properties of Sr_2Fe_(1-x)Mn_xMoO_6 ( 0 .1≤x≤0.9) have been investigated.
     本文通过传统的固相反应法合成了Sr_2Fe_(1-x)Mn_xMoO_6 (0Mn离子,从而改变其磁性相互作用。
短句来源
     the peak-to-tail roughness of PbSe thin films surfaces was less than 200nm and that of ZnO and Mn doped ZnO films surfaces was less than 100nm;
     其中PbSe薄膜的表面不平整度小于200nm,ZnO和Mn离子掺杂ZnO薄膜的表面不平度小于100nm;
短句来源
     The change of I 311/I 400 in XRD patterns of LiMn2O4 is related to the positions of Li and Mn ions in spinel LiMn2O4 structure.
     LiMn2O4的XRD衍射谱中,(311)、(400)衍射峰强度比变化和Li离子、Mn离子在结构中位置变化有关,而Li和Mn的位置直接影响锂离子蓄电池的充放电循环性能。
短句来源
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  相似匹配句对
     (mn) result for n buyers, m commodities single-minded auction.
     (mn)。
短句来源
     Study of Oxidation Process of Mn( Ⅱ )Ions
     Mn(Ⅱ)离子氧化过程的研究
短句来源
     Mn ions entering LiNbO_3 crystal substitute Li~+ sites;
     Mn离子进入晶体,占据Li位;
短句来源
     Ion-selective Electrodes in China
     离子选择电极
短句来源
     A Review:Ion Selective Electrodes
     离子选择电极
短句来源
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  mn ion
The maximum value of the residual magnetic moment in the series of samples obtained was 2.5% of the maximum possible value (4μB for each Mn ion).
      
A comparison of experimental with expected Mn ion moments suggests that magnetic order does not extend throughout the sample volume.
      
The substitutional Mn create a strong random crystal field at the interstitial Mn ion.
      
X-ray absorption spectroscopy for the study of spatial Mn ion distribution in diluted magnetic semiconductors and discrete heter
      
The X-ray K spectra of Mn absorption were used for Mn ion distribution in (Ga, Mn)N.
      
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(1) With the exception of EDTA and Na-azide most of the chelating agents were able to inhibit the activity of acylase. Under conditions of reversible inhibition the activity could be partially or completely restored by the addition of various metal ions. If the concentration of the inhibitor was kept at a chosen value, the extent of reactivation was found to depend on the concentration of the metal ions added. For each of these ions there was a definite and optimum concentration. It is suggested that the metal...

(1) With the exception of EDTA and Na-azide most of the chelating agents were able to inhibit the activity of acylase. Under conditions of reversible inhibition the activity could be partially or completely restored by the addition of various metal ions. If the concentration of the inhibitor was kept at a chosen value, the extent of reactivation was found to depend on the concentration of the metal ions added. For each of these ions there was a definite and optimum concentration. It is suggested that the metal ion needed for acylase activity may be Co~(++) or Mn~(++).

(1)大多数金属絡合剂除EDTA和迭氮化鈉外都能抑制酰化酶的活力,在可逆抑制情况下加入不同金属离子能部分或全部恢复酶活力。在固定絡合剂的浓度下酶活力的恢复程度与所加的金属离子浓度有关,每一金属离子都有一最适浓度。从以上結果推测酰化酶中的金属离子可能是Co~(++)或Mn~(++)离子。(2)在温和的条件下并有底物存在时,邻二氮菲和巯基乙酸对酰化酶的抑制是属于竞爭性,K_i值分別为1.28×10~(-4)M和1.74×10~(-3)M;一分子酶是与二分子抑制剂相結合。推測酰化酶可能是以二聚体形式存在。当抑制剂的浓度增大或使反应温度升高时都将引起不可逆的抑制。若酶与抑制剂預先一起保温亦得到类似的結果。(3)用电透析或在不同pH緩冲液下透析以除去酰化酶中的金属离子,都将导致酶的不可逆失活,因此酶中金属离子除起与底物結合的作用外,尚与維持蛋白貭的构型有关。

The succinate-linked reduction of exogenous NAD~+ in submitochondrial particle preparation of rat liver has been studied. It has been found that the submitochondria 1 particle preparation was capable of catalyzing the oxidation of β-hydroxybutarate with coupled phosphorylation, and the P/O ratio was about 0.7. High activities of the Mg~(++) and Mn~(++) induced ATPase have been found in the submitochondrial particle preparation. Exogenous NAD~+ was rapidly reduced by succinate in the presence of ATP. The energy-linked...

The succinate-linked reduction of exogenous NAD~+ in submitochondrial particle preparation of rat liver has been studied. It has been found that the submitochondria 1 particle preparation was capable of catalyzing the oxidation of β-hydroxybutarate with coupled phosphorylation, and the P/O ratio was about 0.7. High activities of the Mg~(++) and Mn~(++) induced ATPase have been found in the submitochondrial particle preparation. Exogenous NAD~+ was rapidly reduced by succinate in the presence of ATP. The energy-linked NAD~+ reduction was inhibited by amytal, dicumarol and DNP, and was completely dependent on the presence of Mg~(++) or Mn~(++). However, higher concentrations of Mg~(++) or Mn~(++) had an inhibitory effect. The finding that the energy-linked NAD~+ reduction was inhibited by EDTA, even in the presence of an excessive amount of Mg~(++), indicates that the energy-linked NAD~+ reduction requires an additional metal ion other than Mg~(++) or Mn~(++). Vitamin K_3 inhibited the succinatelinked reduction of NAD~+ in the presence of CN~-. Thus it seems unlikely that the inhibition of the succinate-linked reduction of NAD~+ by vitamin K_3 was due to the increase in the rate of aerobic reoxidation of NADH in the presence of vitamin K_3 as suggested by Ernster et al. It is believed that vitamin K_3 may inhibit the succinate-linked reduction of NAD~+ by increasing the rate of hydrolysis of high energy intermediates.

鼠肝麟粒体超声波碎片制剂能氧化庄狸基丁酸,P/O比值豹为0 .7,但墟拍酸氧化时磷酸化效率很低。接粒体碎片制剂有较强的ATP酶活力,在加入吨++或Mn十+后,ATP酶活力显著地增强。当墟拍酸存在时加入ATP引起:NAD十’的还原。NAD斗的需能还原被Amy七al、双香豆素和DNP抑制,反应需要吨+平或Mn++离子,但较高偎度的Mg++或Mn十十反而产生抑制作用。郎使在过量Mg斗干的存在下,EDTA仍然对NAD+的需能还原有抑制作用,歌明除Mg++外NAD+的需能还原可能还需要另一个金属离子参与作用。推生素K:能抑制NAD+的需能还原,但推生素K:的作用井不是使NADH通过DT黄酶最后被氧重行氧化,而可能是由于NADR通过推生素K3在不断地氧化与再被还原的过程中消耗了NAD+需能还原所必需的高能键,因而抑制了NAD+的需能还原。实输拮果税明NAD十的还原是由于唬拍酸氧化电子倒流的桔果。本研究承那承鲁先生积极关怀与甜萧特此志甜。

Several important factors for the enzymatic synthesis of poly C were studied and the proper reaction conditions for the enzymatic synthesis of poly C were given. The polymerization ratio of poly C synthesis is 72.4%. The sedimentation constant of poly C is 8.8 S.In the present paper, the relationship among the nine factors at four orders were studied and optimal reaction conditions for the enzymatic synthesis of poly I were obtained by orthogonal method. The polymerization ratio of poly I synthesis is 72.0%....

Several important factors for the enzymatic synthesis of poly C were studied and the proper reaction conditions for the enzymatic synthesis of poly C were given. The polymerization ratio of poly C synthesis is 72.4%. The sedimentation constant of poly C is 8.8 S.In the present paper, the relationship among the nine factors at four orders were studied and optimal reaction conditions for the enzymatic synthesis of poly I were obtained by orthogonal method. The polymerization ratio of poly I synthesis is 72.0%. Control of the molecular size of poly I was also studied; after the maximum relative viscosity of the reaction solution was reached, the reaction was stopped The sedimentation constant of poly I is 11 S.The characteristics of the above reactions are as follows: (1) only crude PNPase from E. coli. is needed, (2) small amounts of the enzyme are used and (3) the yield of the polymers is high. Cu~(++) and Mn~(++) ions are used in synthesizing poly I, which can attain a high molecular weight even with the crude enzyme. These methods provide an effective procedure for the synthesis of poly I: C for medical uses.

本文报道了影响酶促合成poly C的主要因素,找出了合成poly C的适宜反应条件。聚合率达72.4%,poly C的沉降常数为8.8S。采用正交设计法研究了影响酶促合成poly I的九个因素在四个位级上的相互关系,并求出了合成poly I的最适反应条件。聚合率为72.0%。同时还研究了控制poly I分子大小的途径;当反应系统相对粘度显最大值后中止反应,此时poly Ⅰ的沉降常数为11S。上述反应的特点是利用大肠杆菌的PNPase粗酶液,而且用酶量少,产率高。在合成poly I时运用了Ca~(++)和Mn~(++)离子的特殊作用,达到了用粗酶液合成大分子产物的目的。实践证明,这些方法为生产药用poly I:C提供了可行的工艺路线。

 
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