Solid Freeforming and Combinatorial Research

A view of manufacturing processes is presented in which five distinct categories are defined as casting, deformation, machining, joining, and solid freeforming. Solid freeforming is essentially biomimetic and shares problems of morphogenesis with natural processes. Our team in University of London has been exploring three mechanisms of solid freeforming. In dry powder deposition and direct ink-jet printing, the emphasis has turned to the problem of delivering a complex shape in which the three dimensional spatial arrangement of composition is delivered from the design file. In extrusion freeforming, the aim is to control microstructure at hierarchical levels also from the design file. The quest for 3-D functional gradients is satisfied by acoustic and ultrasonic dispensing and mixing of powders so that each layer can be patterned. These methods could be extended to deliver the complex patterns demanded by left-handed microwave metamaterials. Dry powder deposition and direct ink-jet printing are turning towards combinatorial methods in which multiple sample libraries are used to accelerate discovery. In turn, this paves the way for ’autonomous research machines’ which steer their own search refinements in response to our requests for new materials. In this way, solid freeforming used for sample preparation can give an ’arm’ to an intelligent machine so that it can conduct its own experimentation and learning; an idea that originated with Alan Turing in the late 1940s.     

ERP系统在报业印刷厂的应用

简要介绍了ERP系统的概况,重点阐述了印刷ERP系统的组成模块,并对其应用效果进行了分析。     

彩色图像印染CAD系统的面向对象技术分析和类库设计

以面向对象的思想和技术构建了彩色图像印染ＣＡＤ系统的模型和总体框架，设计了适用于印染ＣＡＤ应用的类库体系．软件系统体系结构先进，具有良好的可扩充性和软件重用性，便于维护和推广．     

丝网镂印技术制备镍扣极板绝缘层的工艺

通过正交试验的方法确定用丝网镂印技术制备镍扣极板绝缘层的最佳工艺条件.结果表明,当印刷操作间温度为22℃,刮墨速度为200 mm/s,刮墨刀的角度为45°,网距为8 mm,烘干温度为150℃时经过套印,可以制备出绝缘性能良好的镍扣极板绝缘层.     

基于ASP.NET的复杂表格打印控制及实现

本文结合实际应用,以班级重修成绩单打印为例,详细阐述了基于ASP.NET的复杂表格打印控制及实现。该打印程序输出的成绩单可以随意设置字体字号、表格合并、学生姓名及成绩的动态输出,有效地提高了教务管理的工作效率,具有良好的实用性、先进性和推广价值。该打印控制程序,既可以直接应用于其他基于asp.net技术的管理系统中,也...     

按需出版与图书馆工作

在给出按需出版定义的基础上,介绍了按需出版的产生背景、特点和发展现状,分析了按需出版模式给图书馆带来的重要影响,指出图书馆应充分认识按需出版对自身的价值,积极推进按需出版事业的发展。     

实现日常报表模仿打印的一种实用方法

本文编写的BASIC程序利用了SPT图形文件的文件头 ,实现了日常报表的模仿打印。这种方法可以在普通打印机上方便地实现图表打印 ,模仿了人们的习惯形式 ,其效果令人满意     

Calculation of impact factor of vibrator oscillation in offset printing based on fuzzy controller and genetic algorithm

In the inking system of an offset printing press,a vibrator roller distributes ink not only in the circumferential direction but also in the axial direction.In the control process,if ink amount is determined only by the dot area coverage without considering the impact of vibrator roller's oscillation,the printing colour quality will be reduced.This paper describes a method of calculating the impact factor of vibrator roller' s oscillation.First,the oscillation performance is analyzed and sample data of impact factor is got.Then,a fuzzy controller used for the calculation of the impact factor is designed,and genetic algorithm is used to optimize membership functions and obtain the fuzzy control rules automatically.This fuzzy controller can be used to calculate impact factors for any printing condition,and the impact factors can be used for ink amount control in printing process and it is important for higher printing colour quality and lowering ink and paper waste.     

导流电凝聚法印染废水脱色电解槽结构设计

阐述了导流电凝聚法的基本原理，由模拟废水脱色试验确定了电解槽的结构及各项尺寸。应用于活性模拟试样脱色，处理后各项指标均达到国家允许排放标准。     

活性污泥法处理印染废水中的主要微生物种群

对用活性污泥法处理印染废水中的微生物区系进行分离与鉴定，细菌与原生动物占优势．分离的２７０余株细菌大多数是具有芽孢、荚膜的革兰氏阳性杆菌．实验表明，分离的细菌对所用的分散染料的降解能力比活性染料强．凝结芽孢杆菌、枯草芽孢杆菌对两类染料都具有较强的降解活性；浸麻芽孢杆菌、坚实芽孢杆菌只对分散染料表现出较高的降解活性