Woven Surface and Form

The Advanced Geometry Unit (AGU) at Arup, founded by Cecil Balmond and Charles Walker, has become synonymous with a highly mathematical, topological approach to architecture. It has, however, collaborated on some of the most exciting experimental fabric structures of recent years, including Anish Kapoor's Marsyas at Tate Modern and Rem Koolhaas's Cosmic Egg at the Serpentine Gallery. Here, the unit's Tristan Simmonds, Martin Self and Daniel Bosia describe how the AGU has progressed research into textile techniques that encompass tailored biomorphic forms alongside knot diagrams. Copyright © 2006 John Wiley & Sons, Ltd.     

Large-scale fabrication of bioinspired fibers for directional water collection

Spider-silk inspired functional fibers with periodic spindle-knots and the ability to collect water in a directional manner are fabricated on a large scale using a fluid coating method. The fabrication process is investigated in detail, considering factors like the fiber-drawing velocity, solution viscosity, and surface tension. These bioinspired fibers are inexpensive and durable, which makes it possible to collect water from fog in a similar manner to a spider's web.     

基于CMOS图像传感器的计花器设计

阐述了新型CMOS图像传感器ME1010的结构模块与工作方式,设计出了以ME1010为核心的计花器系统,给出了系统硬件、软件结构,对硬件和软件进行了计算机仿真分析。仿真结果表明该系统能够满足高支纤维生产过程对计花作业的要求,具有实用价值。     

Knot Insertion Algorithms for ECT B-spline Curves

Knot insertion algorithm is one of the most important technologies of B-spline method. By inserting a knot the local prop- erties of B-spline curve and the control flexibility of its shape can be fiu＇ther improved, also the segmentation of the curve can be rea- lized. ECT spline curve is drew by the multi-knots spline curve with associated matrix in ECT spline space; Muehlbach G and Tang Y and many others have deduced the existence and uniqueness of the ECT spline function and developed many of its important properties .This paper mainly focuses on the knot insertion algorithm of ECT B-spline curve.It is the widest popularization of B-spline Behm algorithm and theory. Inspired by the Behm algorithm, in the ECT spline space, structure of generalized P61ya poly- nomials and generalized de Boor Fix dual functional, expressing new control points which are inserted after the knot by linear com- bination of original control vertex the single knot, and there are two cases, one is the single knot, the other is the double knot. Then finally comes the insertion algorithm of ECT spline curve knot. By application of the knot insertion algorithm, this paper also gives out the knot insertion algorithm of four order geometric continuous piecewise polynomial B-spline and algebraic trigonometric spline B-spline, which is consistent with previous results.     

On Perspectives of Mineral Deposit Mining in the Ozerny Ore Knot

A review is cited for technological schemes of processing the ores of the Ozerny knot, and the comparative analysis of these schemes is given in terms of efficiency, complexity, and ecological safety. The variant is presented for developing the reserves of complex ores in the Ozerny and Nazarovsk deposits, iron ores in the Solongo deposit, and boric ores. The technology is proposed for pyrite concentrate processing.     

区间B样条曲线的降阶

提出了区间B样条曲线的降阶问题,并给出了两种不同的降阶方法:整体降阶法与分段降阶法.给出了两个实例来说明算法,并比较了两种算法的优劣.实验结果表明,无论对均匀区间B样条曲线还是非均匀区间B样条曲线,分段降阶方法比整体降阶方法都更有效,而且能得到更紧的降阶区间B样条曲线.     

结子线纺制的加捻机理分析

介绍了精纺机纺制结子线的工艺过程,通过对捻合点的纱线进行受力、速度及加捻、退捻力矩的分析,阐述了结子线的成纱机理和影响结子线结构的因素     

木节对板材抗拉强度影响的研究

本研究采用大尺寸构件为试件,较好地反映构件实际抗拉工作.分别给出了不同相对偏心φ下的φ-K回归方程,并得出φ>0.35时.Ψ对K几无影响的结论.文中分析了木节生长过程中纤维的变化,认为弦切板径切面上的纤维倾斜和割断对抗拉强度影响最大,过去从未考虑此影响,本文计入这一客观事实,利用Hoffman复合材料强度理论,结合木节对截面削弱的假定给出了木节对板材强度折减系数K_i的计算公式,与试验结果吻合较好.     

西方时装之中国“草根”情结探析

"中国风"对西方时装的影响可谓久矣。时代发展到今天,中西方开放式地经济往来与文化交流促使西方对中国的理解不再限于从前单纯的想象。随着西方对中国了解的深入,中国"草根"元素日渐成为西方设计师们热衷的设计资源。文章通过分析西方时装中出现的一些中国"草根"现象和现代社会文化特征,从而探寻西方时装大牌在设计中的中国"草根"情结之根源。