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在水热体系中利用双模板剂合成了纯相ZSM 11分子筛,并考察了合成条件的影响。同时利用多种表征手段对产品的物理化学性质进行了表征。  相似文献   
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Present address: The Polytechnic of the South Bank, Borough Road, London, S.E.1 England. The linear dependence of the values of Nth degree spline andits pth derivatives at N successive equally spaced knots isshown and the constants associated with this linear dependencecalculated. A recurrence relation which enables the constants to be foundfor any N is also given. The results are applied to equal intervalinterpolation.  相似文献   
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Orthogonal polynomials are widely used in discrete least squarespolynomial curve fitting. Here we explain why a variant proposedrecently by several authors is superior and propose a logicalextension which produces better results under some circumstances.  相似文献   
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ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.  相似文献   
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