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十六烷值
相关语句
  cetane number
    STUDY ON RELATIONSHIP BETWEEN CETANE NUMBER AND FREE RADICAL CONCENTRATION OF DIESEL FUEL
    柴油的十六烷值与其自由基浓度的关系研究
短句来源
    Diesel Cetane Number Measurement with NIR Spectroanalysis Using LS-SVM
    基于支持向量机的柴油十六烷值近红外光谱测量方法
短句来源
    The electron-spin resonance spectra method was employed to determine the free radical concentrations of four diesel fuel samples with and without cetane number improvers. Cetane numbers of the test samples were determined by ASTM D613-79 method. The results show that the relative free radical concentrations are higher for fuels that contain various cetane number improvers.
    本文采用电子顺磁共振波谱方法测定了四种柴油样品的自由基相对强度,同时用ASTMD613-79方法测定了这四种柴油的十六烷值,两者比较的结果发现,十六烷值高的样品,其所对应的自由基相对强度也较大。
短句来源
  “十六烷值”译为未确定词的双语例句
    The relationships between diesel fuel properties and structural compositions have been interpreted by correlation analysis on their NIR spectra。
    通过近红外光谱与柴油性质的相关性分析 ,解释了柴油中各种 C—H基团的存在对柴油十六烷值、密度、折光、馏程等性质的影响。
短句来源
  相似匹配句对
    The influence of structure of the chiral aminoalcohol on the enantioselectivity was studied.
    的影响;
短句来源
    STUDY ON RELATIONSHIP BETWEEN CETANE NUMBER AND FREE RADICAL CONCENTRATION OF DIESEL FUEL
    柴油的十六烷与其自由基浓度的关系研究
短句来源
    Diesel Cetane Number Measurement with NIR Spectroanalysis Using LS-SVM
    基于支持向量机的柴油十六烷近红外光谱测量方法
短句来源
    IRRADIATIVE OXIDATION OF HEXADECANE
    十六烷的辐射氧化
短句来源
    HLB VALUE OF SURFACTANTS
    表面活性剂的亲水亲油平衡
短句来源
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  cetane number
Fischer-Tropsch (F-T) diesel fuel is characterized by a high cetane number, a near-zero sulphur content and a very low aromatic level.
      
Effect of paraffins C10-C13, C14-C17, C18-C23, tert-butyl hydroperoxide, cumyl hydroperoxide, and isopropyl nitrate as cetane number improvers for summer- and winter-grade diesel fuels, added in amount of 0.4-5 wt %, is studied.
      
On the basis of published data, parametric equations relating the basic physicochemical characteristics of off-standard diesel fuels, i.e., the cetane number, the density, and the sulfur content, were derived.
      
When cetane indexes calculated according to the simultaneous equation method were applied to the fatty acid mixtures, the agreement with those experimentally determined was approximately the error of determination of the cetane number.
      
Neither the lower cetane number of POD fuel nor its emulsification with water presented obstacles to the operation of the diesel engine during a series of steady-state engine tests and the twenty-hour endurance tests.
      
更多          


The electron-spin resonance spectra method was employed to determine the free radical concentrations of four diesel fuel samples with and without cetane number improvers. Cetane numbers of the test samples were determined by ASTM D613-79 method. The results show that the relative free radical concentrations are higher for fuels that contain various cetane number improvers.

本文采用电子顺磁共振波谱方法测定了四种柴油样品的自由基相对强度,同时用ASTMD613-79方法测定了这四种柴油的十六烷值,两者比较的结果发现,十六烷值高的样品,其所对应的自由基相对强度也较大。

Near infrared spectroscopy is a fast,high efficiency and low cost analytical technique,that depended on analytical models which are built through near infrared spectra,the primary method results of calibration set and chemometrics methods.The reliability of analytical results mostly depends on the suitability of analytical model to unknown samples.To judge the suitability of analytical model,a new method is presented that combine principle factor analysis (PCA) and Mahalanobis distance.It is different with...

Near infrared spectroscopy is a fast,high efficiency and low cost analytical technique,that depended on analytical models which are built through near infrared spectra,the primary method results of calibration set and chemometrics methods.The reliability of analytical results mostly depends on the suitability of analytical model to unknown samples.To judge the suitability of analytical model,a new method is presented that combine principle factor analysis (PCA) and Mahalanobis distance.It is different with traditional method,that the Mahalanobis distance is calculated through PCA factor scores.It can avoid the wavelengths selection problem in traditional method of spectral Mahalanobis distance.Through the determination of cetane number of diesel fuel,some factors that affect model suitability judgement are discussed.

近红外光谱作为一种依靠模型进行分析的技术 ,对测定的样品进行模型适用性判断是得到可靠分析结果的前提。对于通过校正集样本近红外光谱测量和标准方法测定的基础数据依靠因子分析技术建立的多元校正模型 ,提出将因子分析与Mahalanobis距离相结合判断定量模型适用性的方法 ,以近红外光谱测定柴油十六烷值为例 ,对影响模型适用性判断的一些因素进行了讨论。

The relationships between diesel fuel properties and structural compositions have been interpreted by correlation analysis on their NIR spectra。With respect to the advantages of near infrared spectroscopy technique and the convenience of correlation analysis, the near infrared spectroscopy can be used as a tool to study relationships between fuel oil products properties and hydrocarbon structural compositions

通过近红外光谱与柴油性质的相关性分析 ,解释了柴油中各种 C—H基团的存在对柴油十六烷值、密度、折光、馏程等性质的影响。鉴于在测样技术上的特点和相关分析的便利性 ,近红外光谱可以作为一种研究油品组成与性质关系的有效手段

 
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