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表征数据
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  characteristic data
     THE EFFECT OF CHARACTERISTIC DATA OF SOLID CATALYST ON PATENT PROTECT
     表征数据在固体催化剂专利保护中的作用
短句来源
  identification data
     In order for the application performence of the rare earth complex fluorescent materials to be improved, 1,3diphenyl4butyrol5pyrazolone, a new chelating agent, which has larger conjugate plane and appropriate carbon chain, has been synthesized. Its structure identification data are provided by elementary analysisFTIR and HNMR.
     为了改进稀土配合物发光材料的应用性能,合成了一种新的螯合剂1,3-二苯基-4-丁酰基-5-吡唑酮,它具有较大共轭平面和适当长度的碳链.通过元素分析,红外光谱和核磁共振谱提供了其结构表征数据
短句来源
  representing the data
     This paper has proposed the word error rate as the index representing the data availability and discussed the reliability of RAID (Redundant Array of Inexpensive Disks).
     本文提出以误字率作为表征数据可用性指标,讨论冗余磁盘阵列(RAID——Redundant Array of Inexpensive Disks)的系统可靠性。
短句来源
  “表征数据”译为未确定词的双语例句
     Two complexes Fe(NO)2(CO)(PPh3)and Fe2(μ2-NO)(NO)2(PPh3)2 are prepared. The properties of the complexes are characterized by element analysis . IR, MS etc.
     文章报道了Fe(NO)2(CO)(PPh3)和Fe2(μ2-CO)2(μ2-NO)(NO)2(PPh3)2两个羰基铁的配合物的合成及元素分析、红外光谱和质谱等表征数据,并对后一簇合物进行了结构的讨论。
短句来源
     It is revealed that the non-stoichiometric Mg-Fe and Mg-Fe-Al spinel complex oxide catalysts are composed of nano-sized ferrite spinel and α-Fe 2O 3 crystallites by XRD, TEM and TPR techniques.
     催化剂表征数据揭示 ,非化学计量比的Mg Fe和Mg Fe Al复合氧化物催化剂是由纳米尺度的铁酸盐尖晶石和α Fe2 O3 微晶相构成的 .
短句来源
     The results show that for the data adopted here, the mixed Weibull distribution appears to be better suited for use.
     结果表明,对本文所采用的试验数据用混合威布尔分布能更确切地表征数据的统计特性。
短句来源
     The Crystal structure, characterization of spectra and molar conductivity showed that two cadmium (Ⅱ) atoms were bridged by threc phenoxy oxygen atoms.
     穴合物的晶体结构,光谱表征数据及摩尔电导表明,穴合物中的两个镉离子通过三个酚氧基桥连。
短句来源
     In part two, we studied the ionic liquids-promoted selective organic reaction, the selective bromonation of activated aromatic compounds using ionic liquid [Bmim]Br_3. In part three, we reported the experimental procedure and spectroscopic data etc.
     第二章主要研究了离子液体[Bmim]Br_3与活性芳烃的选择性溴化反应。 第三部分是实验部分,讲述了实验的具体步骤和化合物的结构表征数据
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      characteristic data
    A practical circuit system based on theoretical consideration has been built, and characteristic data are obtained from the system showing that precision of the logarithmic function is better than 99%.
          
    Characteristic data for stationary phases of vegetable origin were measured.
          
    Characteristic data for dextran 40 and 70 were obtained from the integral distribution curves.
          
    Characteristic data on the team members, their activities and motivation to participate in the program, as indicated by the questionnaire results, are discussed.
          
    The use of the characteristic data found for check methods is demonstrated for scheelite samples.
          
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      identification data
    From electrophoretic and identification data it is concluded that the lactococaal CEPI, CEPIII and several mixed-type proteinases all act on the peptide bonds at positions 79-80 and 95-96.
          
    Our approach is useful for capture-recapture studies with photo-identification data where part of the population does not have any distinctive characteristic which allows unique identification of the individuals.
          
    A punched paper tape control unit that provides for recording of identification data, scanning matrix parameters, test and data overflow functions, and has an option for data transmission is described.
          
    For the remaining pure culture-maintained isolates examined, the molecular identification data obtained corresponded with those delineated by traditional methods.
          
    The goal is to find the weights that minimize the root-mean-square error between the identification data and output of the network.
          
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      representing the data
    The main features of these phases were studied using a series of test solutes of varying chemical characteristics representing the data set for principal component analysis.
          
    Two alternative methods of representing the data in chromatograms are proposed.
          
    This is done by exchanging both, the instance graph, representing the data itself, and the schema, representing the graph structure.
          
    Presented here is an approach to representing the data from atmospheric pressure chemical ionization (APCI) mass spectrometry (MS) of triacylglycerols (TAG) using a set of one, two, or three Critical Ratios.
          
    A transformation system is a transition system where the transitions are labelled by sets of actions and the states are labelled by algebras representing the data states.
          
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    In this paper, the polynuclear aromatic hydrocarbon (PAH)cornponents of hexane-soluble fractions which were produced during the carbonization of aromatic fraction of Daqing decant oil were analysed by 20eV mass spectrometry. The main components in the fractions may be represented by six or seven polynuclear aromatic compound types which were composed of three to six-ring PAH molecules with one or two short alkyl substituents (usually methyl and ethyl). Their molecular weights were in the range of 200 to 350,...

    In this paper, the polynuclear aromatic hydrocarbon (PAH)cornponents of hexane-soluble fractions which were produced during the carbonization of aromatic fraction of Daqing decant oil were analysed by 20eV mass spectrometry. The main components in the fractions may be represented by six or seven polynuclear aromatic compound types which were composed of three to six-ring PAH molecules with one or two short alkyl substituents (usually methyl and ethyl). Their molecular weights were in the range of 200 to 350, concentrated near 270. By using the above data, some of the most important average molecular parameters, i.e., aromaticity (f_(ar)); number of aromatic rings (R_(ar)); degree of aromatic condensation (C_p/C_(ar)); number of aliphatic carbons (C_n) etc. were calculated.They agree well with those obtained from the ~1H-NMR spectroscopic data. The MS analysis may offer information about the molecular weight and structural distributions which could not be obtained by ~1H-NMR average structure method. MS analysis may reveal some structural details about the carbonization mechanism.

    利用质谱法对炭化中间相产物中多环芳烃(PAH)的组成及分布进行了考察。用六或七个芳核类型(芳环数为三至六)表征了多环芳烃的组成。其主要组分为含有一或两个取代基(甲基、乙基)的三至六环的PAH,其分子量分布范围为200—350,主要集中在270左右。所得结果与~1H-NMR波谱法的平均结构表征的数据相符合。

    The alkylation of toluene with ethanol was carried out over HZSM-5 zeolite catalyst modified with boron, and a catalyst with high toluene conversion, high selectivity and good stability was selected. The acidic and structural propetries of HZSM-5 zeolite impregnated with different amount of H_3BO_3 were investigated. Two basic postulates were proposed on correlating reaction results with acidity measurements. They are: effective utilization retio of active sites on catalysts(η), and effective number of active...

    The alkylation of toluene with ethanol was carried out over HZSM-5 zeolite catalyst modified with boron, and a catalyst with high toluene conversion, high selectivity and good stability was selected. The acidic and structural propetries of HZSM-5 zeolite impregnated with different amount of H_3BO_3 were investigated. Two basic postulates were proposed on correlating reaction results with acidity measurements. They are: effective utilization retio of active sites on catalysts(η), and effective number of active sites for alkylation(δ). The effect of catalyst modification is interpretted in terms of η and δ.

    采用硼酸改性的HZSM-5沸石催化剂进行甲苯/乙醇烷基化反应,筛选出一种具有高的活性、选择性、同时又具有较好稳定性的催化剂。对不同硼含量的催化剂进行了几种物性表征。通过将表征数据与反应结果关联,提出了两个基本概念:催化剂上活性中心的有效利用率η和烷基化有效活性中心数δ。催化剂的改性是决定η、δ值大小的主要手段。本文对影响η和δ值大小的因素以及引入这两个概念的意义各提出了几点看法。

    This paper has proposed the word error rate as the index representing the data availability and discussed the reliability of RAID (Redundant Array of Inexpensive Disks). We have shown that the data availability of RAID could be raised along with the in-creasement of the capacity redundancy and that RAID could come into real use widely as long as the word error rate is reduced by using a good error correcting scheme.

    本文提出以误字率作为表征数据可用性指标,讨论冗余磁盘阵列(RAID——Redundant Array of Inexpensive Disks)的系统可靠性。分析、计算、比较表明RAID的数据可用性随着容量冗余度的增加而提高。以一定的冗余度和合适的误码出错控制方式可使系统可靠达到实用要求。

     
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