Interactive digital graffiti canvas system

This paper presents an interactive digital painting system that allows a user to draw graffiti on a virtual 3D canvas with a digital spray can. The system visualizes a stereoscopic representation of the canvas by tracking the user's head. It also emulates real‐time spray painting by tracking the spray can in the user's hand as well as sensing the button pressure of the spray device. After painting a 3D object, the user can interact with the object on the display and see it flying in the 3D environment through a tracked head‐mounted display. As demonstrated in the results of our evaluation, we verified that the system resembles real graffiti in regard to a natural and realistic graffiti experience. Copyright © 2015 John Wiley & Sons, Ltd.     

广告纸自清洁、防涂鸦涂层的制备及性能研究

纸作为常见的广告载体,因具有成本低廉、易于控制、内容详尽、针对性强、覆盖范围广泛等优点深受欢迎。然而,纸易受潮、变黄、褪色,难以长期保存,且相对较薄,易被拉断,这些缺点又限制了其应用。因此,本研究以聚二甲基硅氧烷(PDMS)、疏水型SiO₂、甲苯为基本原料,制备自清洁溶液,将配制好的溶液喷涂在广告纸表面,室温固化后将其浸泡在氟硅烷溶液,加热烘干即可获得具有自清洁、防涂鸦性能的广告纸。采用扫描电镜(SEM)对基底表面形貌和粗糙度进行测量,发现涂层表面形貌变得粗糙不平;通过接触角测量仪检测广告纸表面润湿性的变化,发现纸张变为超疏水;用电子万能试验机测试涂层的抗拉强度,发现由5.5MPa增加到14.8MPa。     

Beyond designer diversity: Planners,public space and a critical politics of difference

Abstract

This article is concerned with the connection between the planning of public space, social justice and the politics of difference. I argue that, to remedy injustice in public spaces, planning must be informed by a critical politics of difference, which can distinguish between various kinds of social difference. The article outlines some important dimensions of a critical politics of difference with reference to three recent conflicts in Australian public spaces: over graffiti, a women's pool and the policing of public spaces in Perth.     

涂鸦表现手法在设计中的应用与消费个性需求分析

随着社会的发展,设计的范畴越来越广泛,与人们的生活息息相关,设计离不开个性因素,而个性因素又具有提升产品价值的作用。从设计的个性、人性、情感方面进行探讨,以涂鸦表现手法在设计中的应用为出发点,借用涂鸦设计作品,揭示涂鸦表现形式在设计中怎样为消费者服务,分析"个性"时尚在涂鸦中的体现,以及涂鸦在这个时代所展现出的设计魅力。     

Beyond designer diversity: Planners, public space and a critical politics of difference

This article is concerned with the connection between the planning of public space, social justice and the politics of difference. I argue that, to remedy injustice in public spaces, planning must be informed by a critical politics of difference, which can distinguish between various kinds of social difference. The article outlines some important dimensions of a critical politics of difference with reference to three recent conflicts in Australian public spaces: over graffiti, a women's pool and the policing of public spaces in Perth.     

生物基聚氨酯抗涂鸦自清洁涂料的制备及性能

以环氧大豆油和2,2-双（羟甲基）丙酸为原料，在无溶剂条件下通过开环法合成了1种高羟值生物基多元醇（ESOD）。以ESOD为羟基组分，六亚甲基二异氰酸酯三聚体为固化剂，单羟基封端聚二甲基硅氧烷（PDMS-OH）为低表面能润滑剂，制备了1种透明光滑的生物基聚氨酯抗涂鸦自清洁涂料。结果表明，只需添加1%（质量分数，下同）PDMS-OH，涂层即具有良好的抗涂鸦和自清洁性能。水、咖啡、白米醋、正十六烷、花生油液滴可在倾斜的涂层表面滑落而不留下痕迹。石墨粉、黏土粉和橙色颜料粉在倾斜的涂层表面能够被水滴轻松带走。油性记号笔在涂层表面划过时，墨水自动收缩成细小的液滴，且可用纸巾轻松擦除而不在涂层表面留下任何痕迹。涂层具有良好的耐磨性，记号笔在涂层表面涂写和擦除1 200次循环后，涂层仍具有优异的墨水收缩能力。