车锥管轧辊专用机床的工作原理

应用机床、刀具、夹具及机械设计理论对Ｃ６３０车床进行改造，从而使该车床能够完成锥管轧辊的加工，保证零件加工质量，降低了成本，提高了生产率     

杂种马褂木无性系插条生根能力的遗传变异

通过田间对比试验研究了杂种马褂木无性系插条的生根类型，生根能力的遗传变异，母株的年龄效应和位置效应。结果表明：（１）插条兼有皮部生根和愈伤生根二种类型，大多数无性系呈现其中一种类型，少数无性系同时包含二种类型；（２）成年树和幼年树基部插条生根能力均存在较大变异性，而且幼年树比成年树的变异幅度更大；（３）扦插繁殖的母株年龄效应不明显，成年树的基部萌条具有很强的生根能力；（４）幼年树插条生根存在位置效     

试论优质造纸原料红麻

利用红麻全秆制浆造纸是改变原料结构、增加产品品种、提高产品档次的重要途径之一。通过对河南息县红麻纤维形态和化学成分的评价分析，表明红麻是一种优质长纤维造纸原料。     

条纹动感投影片的剪贴法设计原则及技巧

从设计系列条纹投影片的实践中，总结出设计条纹投影片所要遵循的原则，找出了解决实际问题的一些技巧和规律，有利于教师和技术人员更多、更好地设计高质量的条纹动感投影片。     

一种基于时隙切割的集中计费系统

论述了一种基于时隙切割的集中计费系统。该系统的计费信息是利用数字中继的一个信道来传输的，其结构简单，易于实现，经实际应用，用户反应良好     

废旧龙门刨的创新改造成龙门铣

本文通过非常规创新设计，将常规认为不能将龙门刨改造成龙门铣的论点推翻，成功地将废旧龙门刨改造成进给传动无级调速的龙门铣．     

菏泽造纸厂生产工艺与技术革新

简要介绍菏泽造纸厂概况,简述其生产工艺流程,分析造纸废液产生的原因和危害,指出技术革新的必要性,提出酶法制浆工艺的新设想。     

浅谈现代成衣中立体裁剪的应用

大多的成衣设计及生产都运用平面裁剪来完成,随着人们对局部造型设计的需求日益增加,平面裁剪已经无法满足服装设计及生产的要求,取而代之的就是立体裁剪。本文从成衣的现状、立体裁剪的特点以及立体裁剪在成衣中的应用三方面来阐述现代成衣中立体裁剪的应用。     

State of the field: Paper tools

Paper occupies a special place in histories of knowledge. It is the substrate of communication, the stuff of archives, the bearer of marks that make worlds. For the early-modern period in particular we now have a wealth of studies of ‘paper tools’, of the ways in which archives were assembled and put to use, of the making of lists and transcribing of observations, and so on. In other fields, too, attention has turned to the materiality of information. How far is it possible to draw a stable methodology out of the insights of literary and book historians, bibliographers, anthropologists, and those working in media studies? Do these diverse fields in fact refer to the same thing when they talk of paper, its qualities, affordances and limitations? In attempting to answer these questions, the present essay begins in the rich territory of early-modern natural philosophy – but from there opens out to take in recent works in a range of disciplines. Attending to the specific qualities of paper is only possible, I argue, if it is understood that paper can be both transparent and opaque depending on the social world it inhabits and helps to constitute. Paper flickers into and out of view, and it is precisely this quality that constitutes its sociomateriality.     

数控等离子切割工艺路径优化及变形控制

针对数控等离子切割件产生变形的原因,对切割件的变形进行了分析,同时对加工件的切割路径优化及变形控制进行了详细的阐述。