Karl G. J?reskog: Award for Distinguished Scientific Applications of Psychology.

Presents the citation, biography, and selected bibliography for Karl G. J?reskog, one of the 2007 recipients of the American Psychological Association's Award for Distinguished Scientific Applications of Psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一类广义水平线性互补问题解的结构及其误差界

文中借助Fischer函数将水平线性互补问题（HLCP）等价转化为一个方程系统,并讨论（HLCP）的解的结构及其误差界．     

新型无毒无味卡尔.费休试剂的研制

对原卡尔．费休试剂进行了改进。以无毒无味的咪唑代替了原试剂中的吡啶，并以乙醇代替了试剂中的甲醇，制成了无毒无味的卡氏试剂。对由卡尔．费休试剂组成的电解液进行了改进，用碘化物代替碘，解决了长期储存和问题。     

无吡啶,无甲醇卡尔费休试剂的应用

对传统卡尔费休试剂的不足进行了分析 ,提出了一种用有机胺代替吡啶 ,用多元醇衍生物代替甲醇的无吡啶、无甲醇、高效低毒、性能稳定、应用范围广泛、克服了传统卡尔费休试剂无法测定含羰基化合物样品中微量水弊端的新型卡尔费休试剂。经与英国BDH公司、北京石油科学研究院和山东淄博无线电一厂生产的市售卡尔费休试剂的对比分析和工厂现场试验证明本试剂可完全替代传统和进口卡尔费休试剂对石油产品、化工产品及含有羰基化合物样品中的微量水分分析。分析误差符合GB6 0 6 77规定的范围     

Bridge over broadway

Abstract

In the middle of the 19th century, traffic congestion on the streets of New York City's commercial districts was, as it remains today, a major problem. Getting around town was especially difficult for pedestrians. Numerous solutions to ease the situation were proposed. One popular idea that had been discussed for years was finally tried in 1867. A bridge for pedestrians was built spanning the intersection of Broadway and Fulton Street in the heart of crowded lower Manhattan. Officially called the Broadway Bridge it became more commonly known as the ‘Loew Bridge’ after City Alderman Charles E. Loew, a major proponent of the project. As successful and practical as the bridge might have been it was removed a year following its erection. Its short life has been attributed to Knox, the famous hatter, who, with a store on one corner of the intersection and competition all around him, apparently felt it was a deterrent to business. According to one newspaper account, a sign was hung on the bridge just before its demolition that read, ‘This bridge has been Loew for some time, Hard Knox killed it.’     

Novel inorganic precursors [Co4.32Zn1.68(HCO2)18(C2H8N)6]/SiO2 and Co4.32Zn1.68(HCO2)18(C2H8N)6]/Al2O3 for Fischer–Tropsch synthesis

The silica- and alumina-supported Co–Zn catalysts were synthesized by thermal decomposition of new inorganic precursors [Co_4.32Zn_1.68(HCO₂)₁₈(C₂H₈N)₆]/SiO₂ or Al₂O₃. A novel coordination polymer formulated as [Co_4.32Zn_1.68(HCO₂)₁₈(C₂H₈N)₆] (1) was prepared using the solvothermal technique and characterized by elemental analysis, FT-infrared spectroscopy. Thermal stability of the complex 1 was investigated by thermogravimetric analysis and differential scanning calorimetry, and its structure was determined by single-crystal X-ray diffraction. Characterization of catalysts was carried out using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and BET specific surface area. The catalysts were evaluated for Fischer–Tropsch synthesis (FTS) in the temperature range 200–300 °C. The results revealed that the synthesized catalysts have higher selectivity to the desired products at 260 °C. The performance of the catalysts was compared to those of catalysts constructed via impregnation method and the fabricated catalysts show higher activity and selectivity than the reference catalysts.     

容量法测定2-乙酰基-r-丁内酯中的水分

采用DL31型卡尔费休滴定仪对2-乙酰基-r-丁内酯的水分进行了测定，对仪器使用环境、极化电流、飘移值、进样时间、搅拌时间、称样量等影响因素进行了剖析，优化了仪器参数，确定了实验方法。     

Comprehensive Fischer–Tropsch reactor model with non-ideal plug flow and detailed reaction kinetics

This paper presents a detailed first principle Fischer–Tropsch reactor model including detailed heat transfer calculations and detailed reaction kinetics. The model is based on a large number of components and chemical reactions. The model is tuned to a fixed bed nearplug flow reactor but can also be applied to slurry and micro-channel reactors.The presented model is based on a cascade of ideally stirred reactors. This modelling approach is novel for Fischer–Tropsch reactors and has the advantage of being able to represent none-ideal reactors. Using a large number of components and reactions makes it possible to better represent the product slate than with conventional modelling based on distribution models.The results of the simulations emphasise that temperature control is important. Global conversion and product yields are dependent on operating conditions especially the temperature. The model is used to calculate the dimensions of an industrial reactor from a laboratory scale reactor.