浅议化工企业的设备折旧制度

本文简要介绍了国内外化工设备折旧概况，提出在我国应实行加速设备折旧制度。     

Kinetics of volume expansion during infusion of Ringer’s solution based on two volume model

In this work mathematical models were developed to represent the kinetics of volume changes of fluid spaces associated with infusion of Ringer’s solution. During infusion of Ringer’s solution, the human body is assumed to be characterized by the two-fluid space model which has second volume space in addition to the first volume so that fluid exchanges between these two spaces are possible. Various infusion types were tested to accommodate different medical situations. Volunteers were given Ringer’s solution and the changes in blood hemoglobin were detected. From the comparison with experimental data, the two-fluid space model was found to represent adequately the kinetics of human volume expansion during infusion of Ringer’s solution.     

Synthesis of tertiary poly(amido-amine)s with amido- and amino-groups randomly arranged along the macromolecular chain

A new synthesis of poly(amido-amine)s from bis (secondary amine)s and acryloyl chloride has been studied, leading to polymers in which the amido- and amino-groups are randomly arranged along the macromolecular chain. A poly(amido-amine) based on piperazine, chosen as the mother compound, has been fully characterized by ¹³C n.m.r. as well as by identification and quantitative evaluation of its hydrolysis products.     

变压吸附富氧工艺用于合成氨制气过程的技术经济分析

本文介绍了变压吸附法制备富氧空气用于合成氨造气系统的新工艺，并对５００００ｔ／ａ合成氨厂进行了技术经济评估。结果表明，同间歇法气化相比，该技术工艺先进且具有显著的经济效益。     

A conservative discontinuous Galerkin scheme for the 2D incompressible Navier–Stokes equations

In this paper we consider a conservative discretization of the two-dimensional incompressible Navier–Stokes equations. We propose an extension of Arakawa’s classical finite difference scheme for fluid flow in the vorticity–stream function formulation to a high order discontinuous Galerkin approximation. In addition, we show numerical simulations that demonstrate the accuracy of the scheme and verify the conservation properties, which are essential for long time integration. Furthermore, we discuss the massively parallel implementation on graphic processing units.     

硅酸盐激光玻璃的离子交换增强

用离子交换法能使硅酸盐激光玻璃机械强度增加２－３倍，激光强度增加３倍，从而弥补了自身热光系数较大的缺点。虽然玻璃在处理后，阈值稍微升高，效率稍有下降，但因允许输入更大的能量，使输出得到３倍的增加，说明了离子交换增强方法是成功的。     

强化环保设计,促进水泥工业的可持续发展

从烟(粉)尘排放总量控制、大气污染物排放标准、清洁生产、中水回用、环境绿化和加强环境法制观念等方面,提出强化水泥建设项目环保设计和建设、促进水泥工业可持续发展的想法和建议。     

PAN－S与镉的显色反应及其应用

本文研究了１－（２－吡啶偶氮）－２－萘酚－磺酸（ＰＡＮ－Ｓ）与镉的显色条件．在ｐＨ为１０的缓冲介质中显色，配合物的最大吸收峰位于５３６ｎｍ波长处，表现摩尔吸光系数ε＝２．９×１０４Ｌ·ｍｏｌ－１·ｃｍ－１．镉量在０～５０μｇ／２５ｍＬ范围内符合比耳定律．用巯基棉分离水中的常见离子富集镉，选择性好．本方法用于工厂排放水中微量镉的测定，结果今人满意．     

螺旋槽管外含高浓度不凝组分蒸汽冷凝传热研究

分析了含高浓度不凝组分蒸汽在立式螺旋槽管表面强制对流冷凝的传热机理。在不凝性组分体积百分浓度超过９０％时，螺旋槽管的强化传热效果不明显，而含量为４４％～９０％时，螺旋槽管总换热系数比光滑管提高２０％～３５％。     

多孔陶瓷分离膜

多孔陶瓷膜由于其优良的耐高温、耐腐蚀、耐微生物侵蚀等性质，近年来被快速地应用于分离领域。本文介绍其制备方法、性能测定及应用前景。