Global ETD Search

1	Street Art: Its Display in Public Space and Issues within a Municipality Gunnell, Katherine 17 December 2010 (has links) Hip Hop graffiti has been marking our urban landscapes for decades. However street art, a much less researched topic, has claimed notoriety in recent years. Much of the existing research groups hip-hop graffiti, gang graffiti and street art together and calls for a uniform response from communities, city officials and law enforcement. While street artists have made their mark in the urban landscapes of the United States as well as internationally, it is important to define the terms "street art"and "graffiti" and where they deviate from one another in order for cities to begin to address these expressions with any level of success. As municipalities grapple with visual public expression--street art and graffiti--a framework must be established taking into consideration legal parameters for both cities and artists. Street art graffiti public space first amendment spray paint urban expression mural arts legal walls anti-graffiti New Orleans Broken Window Theory NoLa Rising
2	Ordmånglarens Brunn Wordmonger’s Well Ardelius Blane, Mercedes January 2019 (has links) In my essay I am looking at the common heritage of written signs and images through my own experience of attention deficiency and mental illness. Through this lens of experience in which words and images are vividly transformed and merged, I am reflecting on language and art and their overlapping. Throughout the text I reference early written entirely pictorial languages, the painterly terms of thought disorders, as well as how the images that gave name to the characters in the phonetic alphabet is still lurking in the very letters themselves. I also exemplify how attention deficiency can evoke new image/text hybrids in a chapter I call ADHD poetry. In my own artistic practice I am drawn towards a melting point of language, written sign, image, high and low, illusion-representation-materiality, intellect and intuition. The surface as a physical object and idea – that there is a two-dimensional space where we project fantasies and fiction. Through prose, play, rhythm, rant, word salad, crumble of meaning etc. sandwiched, I am observing the swelling of words. Wordmonger adhd mental illness fossil sand cat sand instant stone spray paint painting process amphibious poem logographic and ideographic signs alto-relievo low relief humor alternate languages art surface 2D and my love Visual Arts Bildkonst
3	A comparison of catalyst application techniques for membrane electrode assemblies in SO2 depolarized electrolysers / Dreyer H.M.E. Dreyer, Herbert Morgan Evans January 2011 (has links) Hydrogen production via the electrolysis of water has gained a lot of attention in the last couple of years. Research related to electrolysers is mostly aimed towards decreasing the noble–metal catalyst content. In this study the presently used catalyst application techniques were reviewed and critically examined to find commercially applicable and effective methods. Selected methods were then practically applied to determine their feasibility and to gain “know–how” related to the practical application of these techniques. The selected techniques were the hand paint, inkjet print, screen print and spray paint techniques. Meaningful comparisons were made between the methods in terms of parameters such as practicality, waste of catalyst and microstructure. The results point out that the hand paint and spray paint methods are feasible methods although there are improvements to be made. The hand paint method was improved by applying a carbon micro porous layer to the gas diffusion layer before the painting is carried out. The addition of the carbon layer reduced the soaking of the catalyst–containing ink through the gas diffusion layer. A method not initially investigated was identified an evaluated and showed promising results in lowering the mass of catalyst applied. This method comprised of sputtering a layer of catalyst material onto a prepared gas diffusion layer. It also came to light from the results that electrodes, and therefore membrane electrode assemblies, can be produced at a much lower cost than the commercial available membrane electrode assemblies. / Thesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2012. Carbon micro porous layer Catalyst application techniques Catalyst layer Electrolyser electrode Fuel cell electrode Hand paint Inkjet print Membrane electrode assembly Screen print Spray paint Sputtering Water electrolysis Brandstofsel-elektrode Handverf Inkjet-druk Katalisator-aanwendingstegnieke Katalisatorlaag Membraanelektrode-samestelling Poreuse koolstoflaag Spuitverf Waterelektrolise Waterelektroliseerder-elektrode
4	A comparison of catalyst application techniques for membrane electrode assemblies in SO2 depolarized electrolysers / Dreyer H.M.E. Dreyer, Herbert Morgan Evans January 2011 (has links) Hydrogen production via the electrolysis of water has gained a lot of attention in the last couple of years. Research related to electrolysers is mostly aimed towards decreasing the noble–metal catalyst content. In this study the presently used catalyst application techniques were reviewed and critically examined to find commercially applicable and effective methods. Selected methods were then practically applied to determine their feasibility and to gain “know–how” related to the practical application of these techniques. The selected techniques were the hand paint, inkjet print, screen print and spray paint techniques. Meaningful comparisons were made between the methods in terms of parameters such as practicality, waste of catalyst and microstructure. The results point out that the hand paint and spray paint methods are feasible methods although there are improvements to be made. The hand paint method was improved by applying a carbon micro porous layer to the gas diffusion layer before the painting is carried out. The addition of the carbon layer reduced the soaking of the catalyst–containing ink through the gas diffusion layer. A method not initially investigated was identified an evaluated and showed promising results in lowering the mass of catalyst applied. This method comprised of sputtering a layer of catalyst material onto a prepared gas diffusion layer. It also came to light from the results that electrodes, and therefore membrane electrode assemblies, can be produced at a much lower cost than the commercial available membrane electrode assemblies. / Thesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2012. Carbon micro porous layer Catalyst application techniques Catalyst layer Electrolyser electrode Fuel cell electrode Hand paint Inkjet print Membrane electrode assembly Screen print Spray paint Sputtering Water electrolysis Brandstofsel-elektrode Handverf Inkjet-druk Katalisator-aanwendingstegnieke Katalisatorlaag Membraanelektrode-samestelling Poreuse koolstoflaag Spuitverf Waterelektrolise Waterelektroliseerder-elektrode

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