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。     

适合《水情信息编码标准》报汛系统的开发研制

水情报汛站与水情信息分中心之间的水文情报传输是水情信息传输的“瓶颈”。文中介绍了适合新的《水情信息编码标准》要求的报汛系统的组成、功能、特点以及应用前景。该系统适用于新标准情况下水情报汛站与地市级水情信息分中心的水情信息传输,为水情报汛站贯彻实施《水情信息编码标准》提供了简单易行的手段。     

脉冲式激光测距系统中存储接口的设计

针对激光测距系统中脉冲信号的特点,设计了基于FPGA的CompactFlash卡数据存储接口.通过在Verilog硬件描述语言中使用状态机的方式,实现了对接口电路的时序控制.经实际调试证明,该设计方案是行之有效的.     

无碳复写纸的生产及其常见问题

介绍了无碳复写纸生产加工过程中的影响因素、常见问题及其解决方法.     

18万吨/年纸机包装线自动控制系统

介绍了延边石岘白麓纸业股份有限公司从韩国大印公司引进的自动包装生产线控制系统的组成以及生产中出现的问题及采取的改进措施,尤其是软件程序的改进方案.     

对生产现代办公用废纸脱墨浆的主要技术及工序组合的探讨

论述了现代办公用废纸脱墨浆的生产，采用间歇式高浓碎解技术，浮选为主洗涤为辅浮选洗涤相结合的脱墨方法，热分散处理技术等的科学合理性。探讨了主要工艺流程及其在经济上的合理性。     

银行保安信息系统的设计与实现

本文介绍以ＩＢＭ－ＰＣ３８６计算机，Ｖ－ＬＩＮＫ２Ｃ语音接口卡及自动电话拨号机组成的银行保安信息系统的工作原理，主要功能部件的构成和工作原理，工作语音库的建立和裁剪方法，以及整个系统的硬件组成和软件设计方法。