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The investigation is based on three methods: the twisted factorization、LU factorization of tridiagonal matrix and expression the block inverse matrix with four block column vectors.

该算法比经典的LU算法约快两倍。研究了非奇H矩阵的半径,得到一个非奇H矩阵半径的上界估计式。

There are four parts in this thesis, the main works of author are summarized and presented as follows:1. Multivariate curve resolution with alternating least squares and alternating trilinear decomposition are applied in the resolution of overlapping peaks of camptothecin and 7-ethyl-10-hydroxy- camptothecin (SN-38) from HPLC-DAD.

全文共分四章,作者的主要工作有以下三个方面:一、采用HPLC-DAD检测,结合多元曲线分辨-交替最小二乘和交替三线性分解方法对未优化的色分离条件下产生的7-乙基-10-羟基喜树碱(SN-38)和喜树碱的严重重叠的色峰进行分辨。

In this paper, total logistics amounts are chosen as evaluation index, and artificial time series are designed to solve the shortness of statistical data in Chinese logistics. Spectrum estimation theory depicts time characteristics in frequency domain thus has such benefit than time domain methods. This paper evaluates the period of Chinese logistics using spectrum estimation. Stationarity of artificial series is verified, parameter sensitivity of truncation point is analyzed, six periods with different delay window are compared, and significance of period evaluated is tested.

中国物流统计数据缺乏,客观上限制了对其周期规律的研究,本文选取社会物流总额作为测度指标,设计了一种人工序列,解决了统计数据过短问题;估计法从频域角度揭示客观事物的时间特性,在研究时间序列周期波动方面具有时域分析法所不具备的优势,作者采用估计法对中国物流发展周期进行测定,检验了指标序列平稳性,分析了截断点参数灵敏度,比较了6种不同滞后窗下周期值,并检验了所测得周期的显著性。

By the interaction of ethyl acetate and water class solution, The nano silica was synthesized on fused silica capillary tubular inner surface, its morphology and change trend of surface area pore volume and pore size under different reaction condition were investigated.

第三章 原位溶胶-凝胶法制备纳米SiO〓型PLOT石英毛细管色柱及其应用建立了原位溶胶-凝胶法制备纳米SiO〓型PLOT色柱的方法,采用原位溶胶-凝胶法在毛细管内壁合成出均匀的纳米硅胶多孔层,对所合成的纳米硅胶颗粒进行了形貌表征,同时考察了不同反应条件下纳米硅胶的比表面积、孔体积和孔径的变化规律。

The theory and construction of two dimensional holospectrum and three dimensional holospectrum are described especially.

着重对二维全息、三维全息的原理及构建方法进行了说明。

The experimental process was as follows: a set of 5 immobilized copper ion affinity membranes were loaded into a column, uncombined copper ion was removed with 5 mL of sodium phosphate-citric acid buffer (pH 7); the Hb sample volume was 2 mL, and uncombined Hb was eluted with 10 mL of the buffer.

中文内容:摘要:将纤维素滤纸进行碱处理及环氧活化、偶联亚氨基二乙酸、固定化铜离子等处理,并将其装入自制的色柱管,制得固定化铜离子亲和膜色柱。

Volatile flavor components of unfermented smelly tofu were extracted by a simultaneous distillation-extraction apparatus and analyzed by gas chromatography-mass spectrometry.

通过同时蒸馏萃取得到非发酵臭豆腐的挥发性风味物质,并通过气相色-质联用仪进行分析,共有49种化合物被检出。

The absorption band at 2240 A discovered by Stucklen in an underwater spark does not agree with the band observed by Hulthen and Zumstein in a high temperature oven and later studied by Grundstrom. The important difference lies in the complete lacking of the R-branch lines in Stucklen's band. New experimental investigation led to the discovery of the unfound R-branch lines. This is a strong evidence that the bands are actually the same.

Stcklen氏发现用铜极在水中生火花有一吸收光带位於2240A区域此光带与Hulthen氏及Zumstein氏及Grund-strom氏在高温度炉中用铜之蒸气加以氢气所得之吸收光带(亦在2240A附近)不能一致最大之分别在Stucklen之光带全无R支线新实验工作发现R支线之存在得R(0)至R(13)之十四根线确实证明Stucklen之光带并非另一新带。

Unguis Hominis METHOD:The lipids are extracted by solvent method,then esterified,and identified by capillary gas chromatography mass spectra computer technique.

溶剂法提取脂类成分,经酯化后,采用气相色-质-计算机联用技术分离鉴定,归一化法计算相对百分含量。

Unguis Hominis ; lipids ; squalene ; GC/MSD Analysis

人指甲;脂类;角鲨烯;气相色-质分析

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。