拓石与雕版印刷

雕版印刷的发明直接来源于拓石 ,由拓石到雕版 ,最重要的是复制观念的转变。即由去拓已有之石到为拓而刻石 ,这与雕版的本质是一样的。根据最早记载拓石的唐代资料 ,可以认为 :一、晋代就有拓石 ;二、拓石普及于隋唐之际 ,对书法的爱好和传播佛教教义以求福报的心理构成较大的社会需求 ,刻拓观念随之出现并成熟 ,故雕版印刷也当出现于隋唐之际     

未来大众传媒的发展格局

通过对各种传播媒介所依赖的符号手段以及其他物理特性,对目前常见的新闻传播媒介--印刷传媒、广播电视传媒以及网络传媒特点作基本的分析,可知不同的传播媒体各有各的优势,网络传媒不可能完全取代传统的大众传媒。各种不同特质的传媒将会相互并存,并以不同的方式和机制作用于人的信息沟通,对人类的生存方式产生不同的影响。     

亲水性织物转移印花纸研制及应用初探

本文探讨了在铜析纸上用活性染料生产转移印花纸的工艺,并对棉,粘胶和真丝织物转移印花工艺进行了试验,试验结果表明,活性染料的转移率和固色率都达到９０％以上,染色牢度很好。     

The cloud factory: Making things and making a living with desktop 3D printing

This paper presents a case study of an open-source 3D printer called ‘Rep-rap’. 3D printing derives from computer numerical control machinery, a technology first introduced against a background of industrial conflict. This historical fact reactualises labour process theory as a theoretical resource. However, the hobbyists in the Rep-rap project are located ‘outside’ the typical setting studied in labour process theory, that is, the workplace. The case study is, therefore, suitable for examining the limits of labour process theory. Its key tenet regarding structured antagonism between labour and capital is put to the test when the ‘point of production’ is located in a community and ‘labour’ consists in non-remunerated contributions by hobbyists (i.e. non-employees). Drawing on theories of the social factory and free labour in the cultural sector, the article argues that this is changing as hobbyists, fans, makers, etc., are put to work by start-up firms and venture capital in the so-called “sharing economy.”     

焊接车间烟尘治理方法的探讨

在总结国内外经验的基础上 ,提出了改善焊接车间空气品质的两种方法 :1 .设置局部排风装置 ;2 .对有害气体进行有效净化