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spectral variation
相关语句
  谱变分
     On the Spectral Variation of Normal Matrices
     关于正规矩阵的谱变分
短句来源
     Some new estimates are presented for the spectral variation of two normal matrices. We prove that for any monotone unitarily invariant norm||·||, v(A,B)≤||A-B||, where A and B are both normal.
     本文对正规矩阵A,B的谱变分给出一些新的估计,证明了对于任何单调酉不变范数||·||,v(A,B)≤||A-B||。
短句来源
  光谱变化
     SPECTRAL VARIATION OF NOVA DELPHINI BEFORE ITS DECEMBER 1967 MAXIMUM
     海豚座新星(N Del 1967)1967年12月极大前的光谱变化
短句来源
  “spectral variation”译为未确定词的双语例句
     STUDY ON THE SEISMIC SPECTRAL VARIATION BEFORE AND AFTER YONGDENG M S 5.8 EARTHQUAKE
     永登5.8级地震前后地震波频谱变化特征研究
短句来源
     AN IMPROVEMENT TO SPECTRAL VARIATION OF APPROXIMATE INVARIANT SUBSPACE OF NONNORMAL MATRICES
     非正规矩阵的近似不变子空间的特征值估计的改进
短句来源
     Study on spectral variation of LTN, CHL and LAI of summer maize
     夏玉米叶片全氮、叶绿素及叶面积指数的光谱响应研究
短句来源
     SPECTRAL VARIATION CHARACTERISTICS OF SOUTH CHINA SEA SUMMER MONSOON CONVECTION INTRASEASONAL OSCILLATION
     南海夏季风对流季节内振荡的频谱变化特征
短句来源
     The results show that the aerosol optical depth (AOD) at 550 nm at the two sites is 0.125 and 0.18 respectively . ν (Junge aerosol size distribution parameter) derived from spectral variation of AOD is 2.6 and 3.0 respectively. These values are compared with several typical aerosol models.
     测量结果显示 550nm波长平均气溶胶光学厚度分别为 0 .1 2、0 .1 8,由气溶胶光学厚度的波长变化得到气溶胶Junge参数分别为 2 .6、3.0 ,并与几种典型气溶胶类型比较。
短句来源
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  相似匹配句对
     On the Spectral Variation of Normal Matrices
     关于正规矩阵的谱变分
短句来源
     The variation of I.
     研究结果表明:I.
短句来源
     Spectral Estimate Applied to the Heart Rate Variation Signal
     心率波动信号的谱分析及其应用
短句来源
     On the variation of education
     谈教育的异化
短句来源
     THE SPECTRAL REPRESENTATION
     谱表示
短句来源
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  spectral variation
The spectral variation of the sensitivity of a polythene shielded net radiometer
      
Spectral variation bounds for diagonalisable matrices
      
Some inequalities for communtators and an application to spectral variation
      
Some inequalities for commutators and an application to spectral variation
      
The problem of satellite observation of infrared radiation is studied in terms of geometric and spectral variation of atmospheric radiation.
      
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Spectral observations of Nova Delphini were made at Purple Mountain Obser- vatory from July 22 to October 5,1967.Dispersion of the spectrograms is about 153A/mm at H_γ.In this paper its spectral characteristics and changes are described. The expansion velocities of the envelope are derived,and the speetrophotometric mea- surements are presented. From an analysis of the results,it is concluded: 1.Comparing the spectral feature of Nova Delphini with mainly the pre-maxi- mum spectrum of DQ Her,the...

Spectral observations of Nova Delphini were made at Purple Mountain Obser- vatory from July 22 to October 5,1967.Dispersion of the spectrograms is about 153A/mm at H_γ.In this paper its spectral characteristics and changes are described. The expansion velocities of the envelope are derived,and the speetrophotometric mea- surements are presented. From an analysis of the results,it is concluded: 1.Comparing the spectral feature of Nova Delphini with mainly the pre-maxi- mum spectrum of DQ Her,the only Nova observed With complet spectral data,we find some common characteristics of the pre-maximum spectral variations of these Novae as follows: (a)The expansion velocity of envelope decreased with time and approached a constant value. (b)The color temperature of Nova decreased gradually only With minor fluctua- tions. (c)The intensities of some emissions lines,of which the excitation potentials or ionization potentials are higher,had a tendency to decrease relative to their con- tinuous background. The characteristics described above must be taken into consideration in the investigation of the model and mechanism of the nova explosion. 2.The fact that the spectral variations of Nova Delphini have the pre-maximum characteristics during the protracted maximum stage,supports the following hypothe- sis adopted by W.C.Seitter:“In slow novae the pre-maximum halt which is normally of short duration or absent appears to be protracted as a direct function of the slowness of the nova.” 3.The hypothesis of continuous ejection may explain the behaviour of the pre- maximum spectral variation of Nova Delphini satisfactorily.

本文对1967年海豚座新星12月极大前光谱作了分光光度测量,测定了壳层膨胀速度.分析测量结果,提出如下看法:一、归纳出新星极大前光谱变化有三个共同的特征.这些特征是:1.壳层膨胀速度逐步减小,并渐趋稳定;2.色温度总的趋势是下降;3.某些电离电位或激发电位相对较高的元素的发射线,其相对于连续谱的强度也有下降的趋势.二、海豚座新星特征有利于把其平坦极大阶段看成是极大前休止的假设.三、用连续物质流的假设可以满意地解释我们所观测到的新星极大前光谱变化的特征.

The reflective spectral characteristics of crop lands are essential infor mations to monitor the ecological change for remote sensing. Reflective spectra of rice fields were determined with an outdoor spectrophotometer (Type 302) .These spectra are different from those ofotner lands of crops such as millet, soybean. And the spectra of the same rice field in growthstages are also different. The spectral variations are appeared near infrared band, which are Important informations for translating the...

The reflective spectral characteristics of crop lands are essential infor mations to monitor the ecological change for remote sensing. Reflective spectra of rice fields were determined with an outdoor spectrophotometer (Type 302) .These spectra are different from those ofotner lands of crops such as millet, soybean. And the spectra of the same rice field in growthstages are also different. The spectral variations are appeared near infrared band, which are Important informations for translating the images. (L)

作物反射光谱特性是利用遥感信息进行生态监测的基础资料。为此,我们应用302型野外分光光度计对水稻反射光谱进行了测定。分析结果表明,水稻和主要旱田作物(如谷子、大豆等)的反射光谱虽然具有共同的特征,但由于种类不同,生态条件不同,其反射光谱仍存在差异。水稻在不同物侯期,不同生育状况条件下其反射光谱也有差异。均以近红外波段差异最显著,为图象解译提供了依据。

Suppose tridiagonal matrixthree problems will be considered in this paper: (1) Estimate the upper bound forwhere μi are the eigenvalues of Bn and λ is a fixed eigenvalue of a principal subma-trix Bl of Bn(1≤Zspectral variation SBn (Bl) of Bl with respect to Bn:SBn (Bl) = max min| μi-λj| 1≤j≤l 1≤i≤nand the eigenvalue variation VBn (Bl) of Bl with respect to Bn:VBn (Bl) = min max | μx(i)-λj| x 1≤j≤lwhere the minimum is taken with respect to the set or, all permutations...

Suppose tridiagonal matrixthree problems will be considered in this paper: (1) Estimate the upper bound forwhere μi are the eigenvalues of Bn and λ is a fixed eigenvalue of a principal subma-trix Bl of Bn(1≤Zspectral variation SBn (Bl) of Bl with respect to Bn:SBn (Bl) = max min| μi-λj| 1≤j≤l 1≤i≤nand the eigenvalue variation VBn (Bl) of Bl with respect to Bn:VBn (Bl) = min max | μx(i)-λj| x 1≤j≤lwhere the minimum is taken with respect to the set or, all permutations of (1, 2, ... , n).(3) Consider the stability of dl(λ), SBn(Bl),VBn(Bl)

设有三对角阵本文考虑下列三个问题:i)估计d_l(λ)=(?)min|μ_i-λ|的上界,其中μ_i(i=1,2,…,n)是B_n的特征值,λ是B_n的主子阵B_l(1≤l

 
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