1.A new WAHTD(weighted adjustments based hyperlinks topic distillation) algorithm is presented,which constructs personalized root set and base set using weighted adjustments and then computes authority and hub value of web pages by HITS to distill topic.
提出一种基于权值调整的超链主题提取算法(weightedadjustments based hyperlinks topic distillation),先在获得根集的过程中,用改进的权值进行相似度计算,得到相对更为准确的个性化根集,再利用HITS算法计算Web页面的权威值和中心值。
2.A shortcut design using the Fenske Underwood Gilliland(FUG) equations of continuous distillation design is developed based on the reasonable approximation that the batch distillation column can be considered as a continuous distillation column with changing feed The method is a powerful and computationally fast tool that can be used in batch vacuum distillation process design
对间歇真空精馏过程的近似处理,将一个间歇真空精馏过程看作是一个改变进料组成的拟稳态连续过程,从而用于连续过程设计的Fenske-Underwood-Gililand方程被应用到间歇真空精馏过程的设计计算。 该简捷设计法对组份较多且未知的复杂体系的间歇真空精馏过程的初步设计是适宜的。
3.This paper introduces several separation technologies for alcohol-water system, which include not only traditional azeotropic distillation and extraction distillation, but also new membrane separation techniques, such as membrane distillation, pervaporation and membrane contactor.
摘要主要介绍了醇-水体系分离的几种工艺和新方法,其中包括传统的恒沸精馏和萃取精馏等主流工艺,以及膜蒸馏、渗透汽化和膜接触器等新型膜分离技术。
4.The 24-plate column is normally used for continuous distillation experiments and the 12-plate distillation column for batch distillation experiments.
24盘的蒸馏塔通常情况下是用来持续的蒸馏试验而12盘的蒸馏塔则是用来作成批的蒸馏试验。
5.With datas provided by refinery,simulation of main equipments in atmospheric and vacuum distillation unit was carried out using Aspen Plus. Then,heat exchange net was optimized with Aspen Pinch,old heat exchangers were rated and new heat exchangers were designed with the aid of Aspen B-JAC. Finally,whole process simulation was implemented,which provided requiremnts for the reconstruction of atmospheric and vacuum distillation unit.
根据炼油厂提供的数据,利用Aspen Plus、Pinch和B-JAC等软件分别实现了常减压蒸馏车间的主装置模拟、换热网络优化和旧换热器的校核及新换热器的设计,并最终实现了整个车间的全流程模拟,为常减压蒸馏装置的改造奠定了基础。
6.In the Unit Operations Laboratory, we experiment with two distillation columns: a 24-plate and a 12-plate distillation column.
在设备操作实验室中,我们用两套蒸馏设备进行试验:一个24盘的蒸馏塔和一个12盘的蒸馏塔。
7.On the basis of analyzing the methods used in ECSS(Engineering Chemistry Simulation System) for calculating the physical properties of petroleum, improvements of fitting distillation curve and division of the distillation curve were studied for the original methods.
在对化工模拟软件ECSS(Engineering Chemistry Simulation System)处理石油物性方面的分析基础上,针对其中蒸馏曲线的拟合和蒸馏曲线的切割方法进行了改进。
8.In this paper, further theory study on the vacuum membrane distillation (VMD) is developed, which provides a new theoretical foundation for the application of vacuum membrane distillation technique.
本文针对真空膜蒸馏过程,在前人的研究基础上,对传递机理进行了进一步的理论研究,为真空膜蒸馏技术的应用提供了新的理论基础。
9.A STUDY ON THE CORRELATION BETWEEN CHROMATOGRAPY SIMULATED DISTILLATION ASTM D2887AND VACUUM DISTILLATION ASTM D1160
色谱法模拟蒸馏ASTM D2887与减压蒸馏ASTM D1160数据关联的研究
10.The primary problems existing in industrializing large-scale distillation equipments are pointed out, the magnifying &energy saving distillation technology developed by Tianjin University, such as low liquid-level gradient technology, uniform liquid-vapor distribution technology, anti-clogging technology and a series of tower internals technology, on the basis of modern mass transfer theory hydrodynamics calculation hydrodynamics &process system engineering theory, axe introduced.
针对蒸馏装置大型化过程中面临的问题,本文提出了蒸馏过程大型化理论和节能策略,开发出了低液面梯度技术、气液均匀分布技术、抗堵塞技术以及与此配套的一系列塔内件技术,形成了关键技术的系统集成,显著降低了过程能耗。