Ultra-violet resistant pressure sensitive hot melt adhesives: Innovations for clear film

A new series of hot metl pressure-sensitive adhesives, having both clarity and resistance to ultra-violet light, designed for indoorapplications are described.     

Assessment of the influence of paper formation on the fluorescence contribution to brightness

Paper was produced under controlled conditions with a range of resultant formation and a constant level of fluorescent dye. Brightness and CIE-Whiteness and the fluorescent contribution to brightness or whiteness were measured by directional and diffuse illuminations. Brightness, whiteness, and fluorescence variability were evaluated as the illuminated sample aperture diameter was varied from a maximum of 12.7 mm to a minimum of 6.0 mm over a broad range of paper formation. an increase in the variance of CIE-Whiteness both including and excluding fluorescence is observed as formation degrades. the variance of the fluorescent contribution also increased, but not in a manner to suggest it is independent of the whiteness including or excluding fluorescence measurements. A higher level of instrument noise prevented a similar definitive concl usion for the fluorescent contribution to directional brightness, even though similar trends were observed. an increase in variance was observed for all whiteness and brightness measurements as viewing aperture size diminished. This suggests an opportunity to understand subjective appearance as a function of viewing aperture size. © 1995 John Wiley & Sons, Inc.     

电解纸中水溶性氯化物的定量测定

研究出一种用硝酸铅、磷酸盐共沉淀吸附氯离子，用硫氰酸汞作显色剂，用分光光度法定量测定电解纸中微量氯离子的方法。实践证明，该法适用于电解纸Ｃｌ－测定，且抽提液无须过滤，可为电解纸质量判定提供定量依据。     

Selected Division 22 paper/poster presentations from the Annual Convention of the American Psychological Association: August 14-18, 1998.

Presents abstracts of selected Division 22 paper and poster presentations from the Annual Convention of the American Psychological Association, held on August 14-18, 1998. The presentations cover a variety of topics related to rehabilitation psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

直通道磁元件磁场测量

为使重离子束从注入器（ＳＦＣ）不经主加速器（ＳＳＣ）直接传输到实验终端。最近在兰州重离子研究装置（ＨＩＲＦＬ）上新建了直通管道系统。在该系统中有３台偏转磁铁和３台四极透镜。本文叙述了它们的测磁内容和方法，给出了激磁曲线、径向和轴向场分布、磁场梯度、等效长度等结果。结果表明：全部符合原设计要求，并有一定的余量。     

高效浓密机在仓上金矿全泥氰化,逆流洗涤工艺中的应用

高效浓密机用于全泥氰化、逆流洗涤工艺在国内是第一次采用.它具有投资省,占地面积小,施工及设备安装简便等优点.本文重点介绍了高效浓密机在逆流洗涤生产过程中存在的问题及解决措施.     

An improved method using respirography for the design of activated sludge aeration systems

For the computation of the oxygen uptake for the aeration tank of the biological treatment plant several methods are available such as the OC/L method, Emde's method with fixed coefficients, Eckenfelder's method, and the method of levels of dissolved oxygen. The method for the determination of oxygen uptake for the treatment of industrial wastewaters was developed. The advantage of this method is a simple calculation of oxygen uptake for industrial biological treatment plant due to independent measurement of oxygen uptake for individual phases. The method is rapid and allows easy determination of individual phases of oxygen uptake.     

城市污水处理厂污泥热值及影响因素分析

以重庆市主城区城市污水处理厂污泥为研究对象,测定了污泥的热值并分析了影响污泥热值的主要因素,探讨了水分对热值利用的影响。结果表明:元素分析法和量热仪法测定的污泥热值较吻合;污水水质、排水体制、污水及污泥处理工艺通过影响污泥挥发分的含量而影响污泥热值,建议消化污泥和合流制区域污水处理厂污泥不宜采用焚烧处理。污水处理厂污泥具有自持燃烧特性时的最高含水率为68%;通过元素分析发现,不同污水处理厂污泥挥发分元素的计量组成基本一致,可用计量化学式CH1.72O0.55N0.12S0.03粗略地表示重庆市主城区污水处理厂污泥挥发分的组成。     

ATP,oxygen uptake rate and INT-dehydrogenase activity of actinomycete foams

The purpose of this study was to establish the validity of the INT-dehydrogenase test for determining the biochemical activity of actinomycete foams. Parallel measurements of INT-dehydrogenase activity, adenosine triphosphate and oxygen uptake rate were made on foam samples collected from three different activated sludge plants over a period of several months. Activity levels of actinomycete foams measured in this study were found to be comparable to those of activated sludge as reported in the literature. Good-to-excellent correlations (r² > 0.87) were found between INT-dehydrogenase activity and the alternative parameters. Precision of all assays tested was comparable. The INT-dehydrogenase test can therefore be used in lieu of ATP or oxygen uptake rate assays without sacrifice in either the reliability or reproducibility of results obtained.