Modeling of mass transfer characteristics of bubble column reactor with surfactant present

Danckwert's method was used to determine the specific interfacial area, a, and the individual mass transfer coefficient, kL, during absorption of CO2 in a bubble column with an anionic surfactant in the carbonate-bicarbonate buffer solution and NaAsO2 as catalyst, the presence of which decreases the specific interfacial area and the individual mass transfer coefficient. The specific interfacial area and the individual mass transfer coefficient increase with increasing superficial gas velocity. The specific interfacial area decreases whereas the individual mass transfer coefficient increases with increasing temperature. The results of experiments were used to determine the dependence of a, kL, and kLa on the surface tension, the temperature of the absorption phase, and the superficial velocity of the gas. The calculated results from the correlation were found to be within 10% deviation from the actual experimental results.     

基于冒泡算法的USB加密狗系统研究

介绍了一种基于USB和精锐IV的硬件加密系统的设计方案,使用代码移植技术,将bubble-sort()和main()集成到加密狗中,实现了结构简单、实时性好的加密系统。实际使用情况表明,该系统达到了设计要求。     

链式存储结构上冒泡排序算法的研究与实现

线性表上进行的冒泡排序法是一种较简单的内部排序算法,计算机工作者经常研究和讨论顺序表中冒泡排序算法的实现及其改进,很少研究冒泡排序法在链表上的实现.文中讨论了冒泡排序在单链表上和静态链表上的算法及实现过程.最后分析了算法时间复杂度和空间复杂度.     

房地产泡沫下的货币政策选择

本文分析了房地产泡沫形成的原因,认为货币政策与房地产泡沫存在紧密的联系。并据此提出了相应的对策建议。建议实行不对称信贷政策,前瞻性的提高利率。     

C S Smith’s development of a viewpoint

Cyril Smith’s distinguished career in industrial metallurgy was wonderfully transformed into his masterful engagement with the history of science and technology. These two phases were bridged by a piece of research that particularly pleased him, as epitomising his general ideas of form and organisation. It was based on his conception of the 2D soap froth as a prototype for metallic grain growth (and much else). He rightly sensed that it would be an enduring source of understanding of some of the complex effects that he so admired in materials.     

基于PLC控制气泡自动测量装置的研制

通过需求分析,研制了一款军用检测水幕弹产品发泡量的仪器。该仪器以PLC为控制核心,机械机构部分,从整体设计、局部设计再到详细设计的分层递阶思想展开,并应用三维实体软件对其进行干涉检验;控制部分,根据功能需求选择适当的电器元件,搭建系统控制平台,并选用梯形图语言编写控制程序,实现系统的自动控制。经过试验测试,该系统能够很好地实现精密测量和自动控制的要求。     

虚拟经济偏离对我国房地产市场泡沫的影响分析

虚拟经济的过度膨胀会引发经济泡沫,而我国房地产市场存在泡沫是不争的事实。本文从分析虚拟经济的概念与特点入手,分析了虚拟经济偏离对我国房地产市场泡沫的影响分析,并以日本虚拟经济偏离产生的房地产泡沫实例进一步阐述虚拟经济偏离对房地产市场泡沫的影响。由于经济泡沫的存在,实体经济对虚拟经济影响趋弱,且虚拟经济对宏观经济政策反应迟钝,甚至逆势而上。这些反常表现说明中国经济的发展隐藏巨大的隐患,不及时制止有发生经济危机的可能。日本上个世纪末房地产市场崩溃导致经济的衰退与低迷则是前车之鉴。     

VB冒泡排序的四种算法实现

排序是数据处理中很重要的技术之一,冒泡排序是实现排序功能诸多方法中的一种。根据冒泡排序算法思想,讨论了4种算法,并在Visual Basic环境中实现。