The aim of the research was to summarize a mathematical model of bow and arrow interaction in the vertical plane and to develop an appropriated computer model. A bow was modeled as a non-deformed riser and hinged to it two nondeformed limbs with Archimedean springs. Their stiffness as well, as an elasticity of a string was taken into account in a linear approach. An asymmetric bow scheme was co...

A finite element model aimed at predicting the in-plane and out-of-plane static mechanical behavior of a tightened bow is developed. It takes into account the prestress due to hair tension and the nonlinear behavior due to large displacements. An non-destructive procedure to determine the input parameters of the model from measurements on a bow is described. Numerical and experimental results a...

The crowding of wireless band has necessitated the development of multiband and wideband wireless antennas. Because of the self similar characteristics, fractal concepts have emerged as a design methodology for compact multiband antennas. A Koch-like fractal curve is proposed to transform ultra-wideband (UWB) bow-tie into so called Koch-like sided fractal bow-tie dipole. A small isosceles trian...

This paper explores the potential of near-field optical reflective sensing for musical instrument gesture capture. Near-field optical sensors are inexpensive, portable and nonintrusive, and their high spatial and temporal resolution makes them ideal for tracking the finer motions of instrumental performance. The paper discusses general optical sensor performance with detailed investigations of ...

This paper addresses the need to utilize precision measurement techniques in the the creation of new performance instruments and interfaces. Discussed within is the design and construction of a new violin interface, the Hyperbow, which serves as a £rst demonstration of how a violin bow might be made capable of measuring the most intricate aspects of violin technique–the subtle elements of physi...

Bow-tie diagrams are emerging as a very useful tool to depict and maintain an up-to-date, real-time, working risk management system embedded in daily operations. They are a proven concept in the worldwide offshore industry. These diagrams provide a pictorial representation of the risk assessment process. This article introduces the bow-tie concept to the downstream and chemical process industri...

There has been an increasing attention to the effect of hull roughness on ship resistance and powering. In conventional studies, surfaces have treated as uniform rough while real ships' hulls are exposed heterogeneous fouling accumulation. The work described here presents experimental investigation into resistance. A series towing tests were conducted using a model Wigley with various condition...

Silicon-on-insulator (SOI) wafers are nowadays being prominently used for the manufacture of new generation semiconductor devices. In order to maximize the device yield, the device industry is seeking SOI wafers that meet very stringent wafer specifications such as very low wafer bow and warp. An SOI wafer can undergo severe process-induced stresses during its manufacture leading to significant...

Typically, in textual document classification the documents are represented in the vector space using the “Bag of Words” (BOW ) approach. Despite its ease of use, BOW representation cannot handle word synonymy and polysemy problems and does not consider semantic relatedness between words. In this paper, we overcome the shortages of the BOW approach by embedding a known WordNet-based semantic re...

In light of the promising results obtained by driving a lowcomplexity digital waveguide (DW) violin model with synthetic bowing gestures , we currently explore the possibilities of combining DW and finite-difference time-domain (FDTD) frameworks to construct refined, yet efficient physical models of string quartet instruments. We extend previous approaches by combining a finite-width bow-string...