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   

A national interlibrary loan network: the OCLC approach     

Jacob ME 《Bulletin of the American Society for Information Science / ASIS》1979,5(5):24-25

  相似文献   

Gesch?ftsmodelle und Besch?ftigungspotenziale der Software-Industrie     

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

  相似文献   

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   

The Motivations of Book Publishers in Germany and Australia: An Empirical Comparison     

Albert Martin  Susanne Bartscher-Finzer  Anne Richards 《Publishing Research Quarterly》2018,34(1):69-88

Our study compares the motivations of Australian and German book publishers. The results demonstrate remarkable similarities, but also a significant difference regarding the effects of the publishers’ self-concept. In the German case the publishers with a dominant economic orientation are more proactive than the publishers with a dominant cultural orientation. In the Australian case, this correlation does not exist. The same difference holds for the relationship between the economic orientation and extrinsic motivation. We discuss these results and examine empirical evidence and theoretical suggestions to explain the differing findings. The data stem from surveys conducted in the two countries with responses of 196 (Germany) and 54 publishers (Australia).  相似文献   

Print Media Standardisation and Professionalism     

Jacob Nyarko  Ruth E. Teer-Tomaselli 《Journalism Practice》2018,12(1):76-93

The independence of the media under Ghana’s Fourth Republic is assessed from the perspective of standards and professionalism. Using a qualitative method, the study shows that unethical practices are evident in the print media landscape in Ghana, and argues that this can be traced to four major spheres: educational qualification, existence of several professional associations, a weak regulatory body and “money matters”. Overall, the study argues that legalities form a minimal part of the independence of the Ghanaian media but concerns about freedom seem to be self-inflicted by the very media practitioners through their actions and sometimes questionable reportage.  相似文献   

The University Experiences of Students with Learning Disabilities     

Karla K. McGregor  Natalie Langenfeld  Sam Van Horne  Jacob Oleson  Matthew Anson  Wayne Jacobson 《Learning disabilities research & practice》2016,31(2):90-102

To explore the university experiences of students with learning disabilities (LD), 63,802 responses to the 2014 Student Experience in the Research University Survey were analyzed. Compared to other students, those with self‐reported LD (5.96 percent) had difficulty with assignments and had more obstacles caused by nonacademic responsibilities and imposed by their skill levels. Students with self‐reported LD sensed more bias toward people with disabilities on campus, and they were less satisfied with their overall experience. Interactions between disability status and age suggested even more challenges for older students who self‐reported LD. Approximately one‐third of students who self‐reported LD received accommodations. The rate of accommodations was higher among individuals who were wealthy, who lived alone, and who were out‐of‐state students. Compared to students who self‐reported LD but reported no accommodations, those with accommodations had more contact with faculty and less difficulty with assignments.  相似文献