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In signal processing, communications, and other branches of information technologies, it is often desirable to map the higherdimensional signals on Sn.


Its basic step is to divide the plane into subdomains that include only simple branches of the algebraic curve without singular points.


Each of the branches is then stably and efficiently traced in the particular subdomain.


The link curve of a spherical fourbar mechanism can be separated into two branches.


The double points may be the double points of either branch, or the intersection points of the two branches.

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This fact is deduced from results about equivariantDmodules supported on the nilpotent cone of.


Given integers n,d,e with $1 \leqslant e >amp;lt; \frac{d}{2},$ let $X \subseteq {\Bbb P}^{\binom{d+n}{d}1}$ denote the locus of degree d hypersurfaces in ${\Bbb P}^n$ which are supported on two hyperplanes with multiplicities de and e.


Smoothing Minimally Supported Frequency Wavelets: Part II


The main purpose of this paper is to give a procedure to "mollify" the lowpass filters of a large number of Minimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also lowpass filters for an MRA.


Smoothing minimally supported frequency wavelets: Part II

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 In engineering practice, the circumferential edge of a circular plate, aside from being leaned on hinged or fixed support, may happen to be leaned on elasticallyclamped support. This paper is to discuss: The bending of the circular plate with elastically clamped edges under parabolic distributeds symmetrical load. To use the principle of superposition to analyze the bending problem of the same plate with a concentrated load at the center. The same problem under other loading.  在工程实际中,圆形薄板之周边除了铰支和固定支座外,还会经常遇到沿板周边为弹性固定支座的情况,本文讨论:(一)周边弹性固定而受有抛物线分布载荷时的弯曲,(二)利用叠加法分析周边弹性固定而受有中心集中荷载时的弯曲问题。(三)其他载荷时的情况。  This paper presents a computation method for a new type of retaining structure—the anchor pile with a pull rod. The formulation has been performed according to the difference principle and with the help of fundamental knowledge of strength of materials and matrix algebra. This method is easy to understand and to operate, since it is very simple. It is reasonable for not only the mutual function between the pile and the elastic foundation but also that of the pile and the pull rod is considered.The author has... This paper presents a computation method for a new type of retaining structure—the anchor pile with a pull rod. The formulation has been performed according to the difference principle and with the help of fundamental knowledge of strength of materials and matrix algebra. This method is easy to understand and to operate, since it is very simple. It is reasonable for not only the mutual function between the pile and the elastic foundation but also that of the pile and the pull rod is considered.The author has extended the computing formula and proved that this method can be applied not only for the computation of the anchor pile with a pull rod but of the anchor pile without any pull rod. The computation is much simple especially for the later. The author has computed the anchored bulkheads in the port engineering by means of this method. And compared with the customary one, the method introduced here is also possible.  本文介绍一种新型支挡结构物——具有拉杆的锚固桩的计算方法。计算公式的建立是根据差分原理,并借助于材料力学和矩阵代数的基本知识完成的,公式简单明瞭,便于掌握。它不仅考虑了桩与地基的相互作用,而且也考虑了桩与拉杆的相互作用,较为合理。 作者将计算公式作了推广、延伸,证明此方法不仅适用于具有拉杆的锚固桩的计算,而且也适用于无拉杆的情况,对于后一情况,计算更为简单。作者对港口工程中的单锚板桩墙也采用本方法进行了计算,并与现行方法作了分析比较,认为本文所介绍的方法也同样适用于港口工程中的板桩墙的计算。  A structure assembled by sphere,cone and cylinder with support ring was cal culated using the finite element axisymmetrical analysis program.It is known that connection of a support ring to a cylinder is somewhat unusual,i.e.along the con tact line between the support ring and cylinder,only the ends are welded while the rest is faced each other.Consequently they used to be taken as a solid entirety in the calculation,resulting in the fact that the calculation results were not in agree ment with the experimental... A structure assembled by sphere,cone and cylinder with support ring was cal culated using the finite element axisymmetrical analysis program.It is known that connection of a support ring to a cylinder is somewhat unusual,i.e.along the con tact line between the support ring and cylinder,only the ends are welded while the rest is faced each other.Consequently they used to be taken as a solid entirety in the calculation,resulting in the fact that the calculation results were not in agree ment with the experimental ones.A support ring model with clearance which is capable of exhibiting the feature of the connection between them is presented.The calculated result shows that stresses and strains are in good agreement with the ex perimental ones,and that the calculating model and method are available.As a result,a reasonable explanation why previous results were not so satisfying has been made.  本文用轴对称壳有限元分析程序计算了具有支撑环的球、锥和柱壳的组合结构。支撑环和圆柱壳的连接形式比较特殊,即支撑环仅在两端与圆柱壳焊接,而在两者之间并无焊点相连,仅仅是贴合在一起。在以往的计算中都把两者当做一个实心的整体来计算,致使计算结果与实验结果很不一致,误差较大。本文提出了一种能反映支撑环和圆柱壳之间连结特点的所谓“有缝”摸型,并对这种模型进行了计算,求出的应力和变形与实验结果很接近,表明了计算模型和计算方法的可靠性,从而也对过去计算与实测结果不符合的原因给予合理的解释。   << 更多相关文摘 
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