Physically based rendering of metallic and pearlescent appearance requires knowledge of the composition of paint or coating. However, sometimes composition is not available, while the Bi-directional Reflectance Distribution Function (BRDF) is measured from an actual sample. Such a situation invokes the inverse problem to find a paint composition from a given BRDF. We solve this problem based on...

This paper is about a development process of a novel sound effect device, which resembles ordinary spray can, with the purpose of adding sound elements to existing spray paint art. To this end, we first investigate the processes and the characteristics of spray paint art and find the common elements that can be expressed in an auditory form. We then design a prototype using Arduino and various ...

A THESIS ON TECHNIQUES FOR NON-PHOTOREALISTIC SHADING USING REAL PAINT by Reynold J. Bailey ADVISOR: Professor Cindy Grimm May, 2004 Saint Louis, Missouri The goal of this research is to explore techniques for shading 3D computer generated models using scanned images of actual paint samples. The techniques presented emphasize artistic control of brush stroke texture and color. We first demonstr...

A tensile mechanical test suitable to measure the adhesion between brittle coatings and ductile substrates was applied to measure the adhesion of painted layers on polypropylene blends. The test involves the tensile deformation of the painted assembly, resulting in the periodic cracking of the brittle coating on the ductile substrate. The interfacial shear strength was determined by measuring t...

A laboratory test with a flow-through system was designed and its applicability for testing antifouling paints of varying efficacies was investigated. Six different formulations of antifouling paints were prepared to have increasing contents (0 to 40 wt.%) of Cu2O, which is the most commonly used antifouling substance, and each formulation of paint was coated on just one surface of every test p...

When teacher salaries are discussed, two very different pictures often emerge. The first of these portrays teachers as underpaid, overworked servants of the public good. The second paints a picture of an overpaid group of civil servants who spend very little time actually working. As we might expect, reality is somewhere between these two extremes. This report looks at Michigan teacher salaries...

Could titanium-clean air be how advertisers one day try to sell us the virtues of paint or even clothing that reduces the pollution caused by automobiles? The technology behind such products involves the well-known ability of titanium dioxide (TiO2) to photocatalytically split water to form hydroxyl and peroxyl radicals, a reaction that has already been harnessed to make self-cleaning windows. ...

Air-coupled ultrasound is a well-established tool for acoustic NDT and material characterization. Its major shortcoming is concerned with a weak penetration into material due to a severe impedance mismatch at the air-solid interface. A strong rise in acoustic coupling to solids is obtained by using acoustic mode conversion in slanted configurations. In our experiments, a substantial increase of...

In this paper, we consider the design of minimum time maneuvers for multi-spacecraft interferometric imaging systems. We show that the process of image formation in a multispacecraft interferometric imaging system is analogous to painting a “large disk” with smaller “paintbrushes,” while satisfying a paint thickness constraint. We show that spiral maneuvers form the dominant set for the paintin...