草酸生产水洗塔设计

对目前国内合成法生产草酸所用水洗塔,采用加大水量到50m~3/h,提高塔板开孔率到19.55%(一般推荐6%～12%),降低溢流堰高为25mm,增大降液管到下层塔板间距为95mm 的办法,使洗涤后的气体达到要求。     

带参模糊关系合成

该文对广义λ-并算子的性质作了进一步的研究,利用该算子对通常的模糊关系合成进行了推广,提出一种带参的模糊关系合成,并给出了它的若干性质。     

健康的个性与数学教育的相互作用

本文探讨了健康的个性对数学教育的积极作用,同时又论述了数学教育对培养学生健康的个性的重要意义.     

不同温度均匀二半空间接触后产生的辐射场

 应用电磁线路中涨落耗散理论，推导了不同温度均匀二半空间接触后产生辐射场密度的公式。将此公式近似展开后，即得Grover和Urtiew所获得的表示式，不过多了一松弛项，该项如用非富里叶热传导理论推导，也是存在的。该结果和实验结果一致，不过这里的松驰时间可以应用介质性质进行计算。     

Focusing-defocusing phenomena of radio echo signal after passage of the morning solar terminator

Summary Campaign results of high-repetition ionospheric soundings, performed at the ionospheric station of Rome using a Digisonde 128P, are presented. We introduce an index derived from run rapid ionograms that can be used to detect oscillations of isodensity surfaces ofF ionospheric region started by morning solar terminator.     

A parallel version of the preconditioned conjugate gradient method for boundary element equations

The parallel version of precondition techniques is developed for matrices arising from the Galerkin boundary element method for two-dimensional domains with Dirichlet boundary conditions. Results were obtained for implementations on a transputer network as well as on an nCUBE-2 parallel computer showing that iterative solution methods are very well suited for a MIMD computer. A comparison of numerical results for iterative and direct solution methods is presented and underlines the superiority of iterative methods for large systems.     

服装主观热感觉的统计分析

本文用多因子方差分析模型和多重比较分析了服装穿着时的主观热感觉与服装品种、环境条件、穿着者的活动状态与籍贯之间的关系。通过主成分回归建立了用生理指标预测主观热感觉的模型，从而得出一种定量地评价服装属性的方法。     

The change of the superstructure of semicrystalline polymers during deformation: results from small-angle scattering with synchrotron radiation

The change of the superstructure of different polyethylenes during uniaxial deformation is investigated. The method used is small-angle scattering with synchrotron radiation. For branched polyethylene (Lupolen 1840D) the whole deformation range is analyzed. Beginning with superstructure of the lamellar cluster type, the superstructure partly disappears on a time scale of a few minutes and the fibrillar structure is built up. The degree of destruction and rebuilding depends on the drawing temperature. For very high molecular weight polyethylene (GUR) a reversible change of the superstructure at higher deformation ratios and at different temperatures is observed. The superstructure of (ethylene—hexene) copolymers (TIPELIN) at high draw ratios depends on the drawing temperature and is almost independent of the side group content. Interfibrillar microcracks parallel to the draw direction are produced in samples with a low side group content for draw ratios λ ≥ 1.5.