Searched for: mods_originInfo_publisher_s%3A%22U.S.%255C%2BDepartment%255C%2Bof%255C%2BVeterans%255C%2BAffairs%22
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Smit, G. (author), Plettenburg, D.H. (author)
Current articulating electric and body-powered hands have a lower pinch force (15–34 N) than electric hands with stiff fingers (55–100 N). The cosmetic glove, which covers a hand prosthesis, negatively affects the mechanical efficiency of a prosthesis. The goal of this study is to mechanically compare polyvinylchloride (PVC) and silicone...
journal article 2013
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Smit, G. (author), Bongers, R.M. (author), Van der Sluis, C.K. (author), Plettenburg, D.H. (author)
Quantitative data on the mechanical performance of upper-limb prostheses are very important in prostheses development and selection. The primary goal of this study was to objectively evaluate the mechanical performance of adult-size voluntary opening (VO) prosthetic terminal devices and select the best tested device. A second goal was to see...
journal article 2012
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Herder, J.L. (author), Vrijlandt, N. (author), Antonides, T. (author), Cloosterman, M. (author), Mastenbroek, P.L. (author)
This article describes the development of a mobile arm support for people with muscular diseases. The arm support is spring-balanced, with special attention on reduction of operating effort (high balancing quality and low friction), functionality (large range of motion), and aesthetics (inconspicuous design). The spring settings can be adjusted...
journal article 2006
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Doorenbosch, C.A.M. (author), Harlaar, J. (author), Veeger, D.J. (author)
Positions of the shoulder joint are commonly described in terms of degrees of humeral elevation in the principal planes. This approach is inadequate for an accurate and unambiguous description of functional arm movements that are not confined to these planes. In this paper, a general unambiguous method for describing shoulder positions is...
journal article 2003
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De Visser, H. (author), Herder, J.L. (author)
This paper presents the design of a body-powered voluntary closing prosthetic hand. It is argued that the movement of the fingers before establishing a grip is much less relevant for good control of the object held than the distribution of forces once the object has been contacted. Based on this notion, the configurations of forces on the...
journal article 2000
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Herder, J.L. (author), Cool, J.C. (author), Plettenburg, D.H. (author)
For cosmetic reasons, hand prostheses are provided with cosmetic gloves. Their pleasing appearance, however, is accompanied by poor mechanical behavior, resulting in a negative influence on prosthesis operation. Glove stiffness is high and nonlinear, and internal friction in the glove material causes energy dissipation (hysteresis). In this...
journal article 1998
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Bilsen, F.A. (author), Soede, W. (author), Berkhout, A.J. (author)
Hearing-impaired listeners often have great difficulty understanding speech in situations with background noise (e.g., meetings, parties) . Conventional hearing aids offer insufficient directivity to significantly reduce background noise relative to the desired speech signal . Based on array techniques, microphone prototypes have been developed...
journal article 1993
Searched for: mods_originInfo_publisher_s%3A%22U.S.%255C%2BDepartment%255C%2Bof%255C%2BVeterans%255C%2BAffairs%22
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