Force transducer system for measurement of ice hockey skating force     

Tyler J. Stidwill  Rene Albert Turcotte  Phil Dixon  David J. Pearsall 《Sports Engineering》2009,12(2):63-68

The purpose of this study was to develop a portable force measurement system for ice hockey skating. The system consisted of three strain gauge pairs affixed to an ice hockey skate’s blade holder with wire leads connected to a microprocessor controlled data acquisition device carried in a backpack worn by the skater. The configuration of the strain gauges simultaneously determined the vertical and medial–lateral force components experienced by the blade holder with a resolution accuracy of 1.9 N and a coefficient of variation of 9.2%. On-ice testing of this system with subjects performing forward start, acceleration, and constant velocity skating permitted unencumbered, natural movement and demonstrated clear, unambiguous signal responses, high trial-to-trial repeatability, and easy data retrieval. The practicality and accuracy of this testing approach have many applications, such as a quantitative tool for skating force assessment to aid athletes and coaches, as well as providing the means to examine other skill-specific dynamics.  相似文献   

Book reviews     

Louise L. Stevenson  Albert N. Greco  Ann Okerson  Beth Luey 《Publishing Research Quarterly》1991,7(1):85-91

Association of Research Libraries  相似文献   

E-mail in government: Not post-bureaucratic but late-bureaucratic organizations     

Albert Jacob   《Government Information Quarterly》2008,25(3):429-447

Empirical research provides evidence that electronic communication does not change government agencies into post-bureaucratic organizations. Structuration Theory is used to explore the interaction between e-mail use, communication patterns of civil servants, and two bureaucratic characteristics: formalization and hierarchy. Previous research suggested that the use of e-mail leads to less formalization and less hierarchy, but empirical research in three bureaucratic organizations in the Netherlands leads to different conclusions. First, the use of e-mail leads to informal formalization: the style of communication is more informal but the content focuses less on personal issues and emphasizes efficient recordings of agreements. Second, the use of e-mail leads to hierarchical horizontalization: horizontal contacts take a more central position in bureaucratic organizations but these horizontal contacts are tightly linked to vertical structures. The result of the interaction between e-mail and government bureaucracy is horizontal communication directly linked to vertical structures. Electronic communication turns government agencies into late-bureaucratic organizations.  相似文献   

UnCover on the Web: search hints and applications in library environments     

Galpern NF  Albert KM 《Medical reference services quarterly》1997,16(3):1-18

Among the huge maze of resources available on the Internet, UnCoverWeb stands out as a valuable tool for medical libraries. This up-to-date, free-access, multidisciplinary database of periodical references is searched through an easy-to-learn graphical user interface that is a welcome improvement over the telnet version. This article reviews the basic and advanced search techniques for UnCoverWeb, as well as providing information on the document delivery functions and table of contents alerting service called Reveal. UnCover's currency is evaluated and compared with other current awareness resources. System deficiencies are discussed, with the conclusion that although UnCoverWeb lacks the sophisticated features of many commercial database search services, it is nonetheless a useful addition to the repertoire of information sources available in a library.  相似文献   

Myles Blomefylde, Elizabethan physician, alchemist and book collector: a sketch of a life     

Baker DC  Murphy JL 《The Bodleian Library record》1982,11(1):35-46

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现行的有约束力的多样化的博物馆道德公约——国际博协1970年以来对道德准则不断深入的关注     

伯尼斯·墨菲 《中国博物馆》2006,22(3):14-18

任何一门专业都有其用于行业自律的职业道德规范,博物馆也不例外。自1986年国际博协布宜诺斯艾利斯大会通过《博物馆职业道德准则》以来,已被世界上许多国家的博物馆及其专业人员所接受,成为国际博物馆界除《国际博协章程》之外一个最重要的文件。本文作者曾亲自参与该文件的讨论、起草和修订。在文章中,她对上个世纪70年代以来博物馆职业道德形成的社会背景、哲学体系、核心关注、道德与法律的关系以及近年来的最新修订作了较全面的回顾和分析。  相似文献   

Gesch?ftsmodelle und Besch?ftigungspotenziale der Software-Industrie     

Albert Endres 《Informatik - Forschung und Entwicklung》2006,21(1-2):99-103

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Forschungs- und Entwicklungsprojekte     

Albert Endres 《Informatik - Forschung und Entwicklung》2004,18(2):88-93

Zusammenfassung. Information ist der wichtigste Grundbegriff der Informatik. Ein semantischer Ansatz erklärt Information als Bedeutung einer Nachricht für ihren Empfänger. Als Folge davon hängt der Informationsgehalt einer Datei, einer Datenbank, eines Buches oder eines Filmes von der Interpretation ab, die ein Nutzer vornehmen kann oder gerade vornimmt. Informationsmaße werden sowohl von der Lesbarkeit einer Nachricht als auch von der Qualität des Interpreten bestimmt. Information kann neu entstehen, verloren gehen oder verändert werden.CR Subject Classification: E.4, H.1  相似文献   

Standards for the academic veterinary medical library.     

Sarah Anne Murphy  Martha A Bedard  Jill Crawley-Low  Diane Fagen  Jean-Paul Jette 《Journal of the Medical Library Association》2005,93(1):130-132

The Standards Committee of the Veterinary Medical Libraries Section was appointed in May 2000 and charged to create standards for the ideal academic veterinary medical library, written from the perspective of veterinary medical librarians. The resulting Standards for the Academic Veterinary Medical Library were approved by members of the Veterinary Medical Libraries Section during MLA '03 in San Diego, California. The standards were approved by Section Council in April 2005 and received final approval from the Board of Directors of the Medical Library Association during MLA '04 in Washington, DC.  相似文献   

Narrative Persuasion in a New Media Environment: The Impact of Binge-Watching and Second-Screening     

Nathan Walter  Sheila T. Murphy  Erica L. Rosenthal 《Communication Research Reports》2018,35(5):402-412

The study explored the role of second-screen use and binge-watching in moderating entertainment education (EE) effects. A pretest/posttest experiment of 273 viewers of East Los High measured the effects of exposure to three subplots, concerning alcohol abuse, abortion, and immigration. The effect of identification with characters on change in attitudes was significantly moderated by second-screen use and binge-watching. In particular, second-screening tended to enhance the positive impact of identification; whereas, among respondents who binge-watched the show, the effects of identification were weaker.  相似文献