An electron probe microanalyzer (EPMA) with a palm-size chamber including the electron source and the sample stage was developed using a pyroelectric crystal. Energy of obtained continuous X-rays and lower limits of detection of transition metals (titanium, iron, and nickel) were evaluated. End point energy (Duane-Hunt limit) of obtained continuous X-rays was about 40 keV, but the palm-size EPM...

The character of a brass musical instrument is primarily dependent on its bore profile. Many historic brass instruments are so constructed that substantial parts of the air column are inaccessible to direct measurement. This paper discusses the factors involved and reports recent advances in the use of pulse reflectometry for bore reconstruction, in particular compensation for losses and allowa...

Large vibrating plates are used as thunder sheets in orchestras. We have extended the use of flat plates by cementing a flat panel electroacoustic transducer on a large brass sheet. Because of the thickness of the panel, the output is subject to nonlinear distortion. When combined with a real-time input and signal processing algorithm, the active brass plate can become an effective musical inst...

In the present work, nano/ultrafine structured Al/Brass composite was produced by accumulative roll bonding (ARB) up to eight cycles. The evolution of grain refinement and deformation texture and their effect on the mechanical properties were investigated. It was observed that by increasing the ARB cycles, due to the difference in flow properties of the metal constituents, brass layers necked, ...

The complexity of brass instrument radiation theory has led to a large number of hypotheses and simplifications, which allow for the development of computable models. Most of these, used in the calculation of input impedances, sound simulation and instrument auralisation amongst others, are yet to be validated experimentally. Schlieren imaging techniques permit visualisation of pronounced gradi...

The dearth of females playing so-called masculine instruments has not gone unnoticed, but frameworks for investigating females’ participation have been driven almost entirely by a feminist agenda. A construct for studying gendered participation in music, employing a post feminist perspective is presented. As one of the major areas in which female participation does not match their male counterp...

Strength tests on single lap joints with one adhesive (AV138/HV998) and layer thickness (0.5 mm), three peel stoppers (brass bolt, nylon bolt steel pin), four lengths (12.5 mm, 25 40 mm 100 mm) were conducted to investigate the effects of varying length stiffness peel-stop fasteners. Joint failure stress decreased, but force increased length. Furthermore, joint was higher stopper. The effect br...

accumulative roll-bonding (arb) is a severe plastic deformation process that is using rolling to produce ultrafine grains in coarse grained metallic materials. in this study, arb has been applied on 70/30 brass up to 6 cycles at ambient temperature and non-lubricated conditions to apply a true strain up to 4.8 von mises strain. microstructures of arbed brass samples were characterized by scanni...