皖西潜山、岳西地区手工桑皮纸发展和传统工艺流程考述

桑皮纸是我国传统手工纸的一种,以桑树的韧皮纤维制成。皖西的潜山、岳西两县完好地保留着桑皮纸的传统工艺。2008年,两县申报的桑皮纸制作技艺被列为国家级"非物质文化遗产"。两县桑皮纸发展历史、工艺流程等值得深入研究。

平面组合钢模板新型维修工艺

介绍了平面组合钢模板传统维修工艺的特点和意义。在此基础上,论述了平面组合钢模板传统工艺流程和平面组合钢模板新型维修工艺流程。

追寻逐渐消失的民族记忆——云南花苗服饰探秘

云南是民族云集的地区,集聚了除汉族之外的25个少数民族,各民族间的文化以及服饰可谓争奇斗妍、五彩纷呈,极大程度的丰富了中国艺术文化宝库。但是近几年来,随着世界大众文化的全球化,纯粹的民族民间工艺已经日趋减少,几乎濒临灭绝状态。如何将民族民间文化精髓挖掘出来加以保护,并将其融合时尚元素,转化为现代文化意识或流行趋势,已经成为少数民族甚至全中国服装界所面临的最艰巨的任务。

Process Study and Exergy Analysis of a Novel Air Separation Process Cooled by LNG Cold Energy

In order to resolve the problems of the current air separation process such as the complex process, cumbersome operation and high operating costs, a novel air separation process cooled by LNG cold energy is proposed in this paper, which is based on high-efficiency heat exchanger network and chemical packing separation technology. The operating temperature range of LNG cold energy is widened from 133K-203K to l13K-283K by high- efficiency heat exchanger network and air separation pressure is declined from 0.5MPa to about 0.35MPa due to packing separation technology, thereby greatly improve the energy efficiency. Both the traditional and novel air separation processes are simulated with air handling capacity of 20t＇h-1. Comparing with the traditional process, the LNG consumption is reduced by 44.2%, power consumption decrease is 211.5 kWh per hour, which means the annual benefit will be up to 1.218 million CNY. And the exergy efficiency is also improved by 42.5%.