用Excel计算玻璃的线膨胀系数

本文采用线性拟合法计算玻璃的热膨胀系数，用Excel软件进行拟合计算，计算结果与BASIC编程计算相同。由于该方法不要编写计算程序，初学者也可使用。     

玻璃木箱包装用钢带的选型

本文通过对３２ｍｍ×０．８ｍｍ和１９ｍｍ×０．８ｍｍ两种钢带及各种卡扣厚度的抗拉力检测分析和比较,选择了既经济又能提高木箱包装坚固性的钢带和卡扣。     

Excel规划求解在玻璃料方计算中的应用

以Excel2003为例,介绍了如何在保持混合系数不变的情况下,通过Excel规划求解功能计算玻璃配合料料方的问题,以及在使用Excel规划求解功能计算玻璃配合料料方时需要注意的问题。     

木板直接夹紧玻璃的简易木箱

最近我们进行了一次客户对平板玻璃包装要求的调查。从调查的情况看,有８０％以上客户对平板玻璃的包装要求使用木板箱包装,特别是制镜、镀膜等深加工企业的客户几乎１００％要求用木箱包装。其理由是：木箱包装比较牢固可靠,对玻璃保护性好,破损率低;木箱包装体积小...     

Excel 2003在玻璃配方计算中的应用

详细介绍了用Excel2003的内置函数对玻璃配方进行计算,简化了计算过程,确保计算结果的正确性和准确性。     

Excel在玻璃配料计算中的应用

本文采用Excel的规划求解方法进行玻璃配料的计算，解决玻璃工厂原料设计中配料计算的难题。     

用Excel计算玻璃的线膨胀系数

采用线性拟合法计算玻璃的热膨胀系数，用Excel软件进行拟合计算，计算结果与用BASIC编程计算相同。由于该方法不要编写计算程序，初学者也可使用。     

完善物流推进玻璃裸片包装

通过对玻璃现有包装形式的对比分析,指出只有推行玻璃裸片包装,完善其生产及运输物流,才能从根本上提高玻璃包装质量,降低包装成本,进而最大限度地保护森林资源.     

用Excel软件辅助计算顶盖柱壳

<正> 徐芝纶的《弹性力学》(第三版)下册§20—11节给出了顶盖柱壳(如图,两端简支,纵边自由,覆盖面积为长a宽b的矩形,且a/b大于1.5,纵向荷载X=0,环向、法向荷载只与β有关)的半无矩理论解答,共8个方程求解8     

An engineering procedure to calculate strain in glass above the glass transition temperature

A procedure based on an analysis of experimental data is proposed for determining the strain in glass above the glass transition temperature. Translated from Steklo i Keramika, No. 3, pp. 10–11, March, 1997.     

使用新西兰辐射松 降低玻璃木箱耗材

通过使用新西兰辐射松，在木箱结构上进行创新，增大木箱单元包装量，来降低玻璃单位重箱耗材，从而实现企业和社会的最大效益。     

Reducing the consumption of materials — An important method for increasing efficiency in glass production

Glass and Ceramics -     

A software package to assess the energy efficiency of tunnel kilns

The paper discusses a software package intended to assess the energy efficiency of tunnel kilns and to assist in enhancing their energy and technico-economic performance. The key element of the package is a mathematical model of the kiln, for which a method is set out to account for convective heat transfer in the internal channels of the charge. An approach is described whereby joint operation of the software package and the necessary instrumentation and computer can be organized in assessing the energy efficiency of an operating kiln. Translated from Steklo i Keramika, No. 4, pp. 14–16, April, 1997.     

A software package to streamline the titrimetric determination of lipase activity

A computer software method, the Lipase Titrimetric Analysis Program, has been developed which considerably improves the utility of the Radiometer TitraLab/pH Stat system for the determination of lipolytic activity. The program features increased user interaction in the calculation of maximal lipolytic activity, allows additional titrations to be performed while previously collected data are being analyzed, and permits the permanent storage of titration data.     

A procedure to calculate the structural parameters of densified ceramic materials

A method is developed with which the structural parameters of monodisperse ceramic materials can be calculated, taking into account in a fairly simple manner the way they have been densified. A refined model of the structure is used. The dependence of the average coordination number of a densified system on its porosity is calculated. The calculated results closely agree with the experimental data over a wide range of porosity. Translated from Steklo i Keramika, No. 10, pp. 21–23, October, 1997.     

An attempt to unify the structure of polymerases

With the great availability of sequences from RNA- and DNA-dependentRNA and DNA polymerases, it has become possible to delineatea few highly conserved regions for various polymerase types.In this work a DNA polymerase sequence from bacteriophage SPO2was found to be homologous to the polymerase domain of the Klenowfragment of polymerase I from Escherichia coli, which is knownto be closely related to those from Staphylococcus pneumoniae,Thermits aquaticus and bacteriophages T7 and T5. The alignmentof the SPO2 polymerase with the other five sequences considerablynarrowed the conserved motifs in these proteins. Three of themotifs matched reasonably all the conserved motifs of anotherDNA polymerase type, characterized by human polymerase a. Itis also possible to find these three motifs in monomeric DNA-dependentRNA polymerases and two of them in DNA polymerase ßand DNA terminal transferases. These latter two motifs alsomatched two of the four motifs recently identified in 84 RNA-dependentpolymerases. From the known tertiary architecture of the Klenowfragment of E.coli pol I, a spatial arrangement can be impliedfor these motifs. In addition, numerous biochemical experimentssuggesting a role for the motifs in a common function (dNTPbinding) also support these inferences. This speculative hypothesis,attempting to unify polymerase structure at least locally, ifnot globally, under the pol I fold, should provide a usefulmodel to direct mutagenesis experiments to probe template andsubstrate specificity in polymerases.     

一次改善生料易烧性的尝试

葛洲坝钟祥水泥有限公司1#窑规格为Φ4.8m×74m,由于矿山石灰石氧化钙含量偏低、尾渣、氧化镁、碱含量偏高,投产运行多年来,熟料质量受影响较大,经过多次生料易烧性检测,生料的易烧性较差,熟料游离氧化钙煅烧较困难,公司技术人员搜寻周边磷化工企业的尾渣,通过计量后配入生料入窑煅烧,大大改善生料的易烧性,提高熟料游离氧化钙合格率,提高熟料的28d抗压强度2MPa,降低P·O42.5水泥熟料掺入比例5%。     

An attempt to simulate the bowing phenomenon in tenter with simple models

The bowing phenomenon throughout a tenter was experimentally observed with a pilot plant of successive biaxial stretching. The observed results were compared with simulated ones, by which the deformation behaviors of film in a tenter were predicted, with the assumption that the film was homogeneous isotropic, homogeneous anisotropic, heterogeneous isotropic, or heterogeneous anisotropic for a two-dimensional elastic body with an FEM. Comparatively good agreement between the simulated and observed results was obtained for a heterogeneous anisotropic elastic body with an initial mesh, involving in advance a plastic deformation part. © 1993 John Wiley & Sons, Inc.