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  • SAGE Publications  (15)
  • 2005-2009  (15)
  • 1
    Online Resource
    Online Resource
    Experimental definition of a failure model for the tribological behaviour of polytetrafluoroethylene bronze compounds
    SAGE Publications ; 2009
    In:  Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Vol. 223, No. 5 ( 2009-05-01), p. 807-815
    Details
    In: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, SAGE Publications, Vol. 223, No. 5 ( 2009-05-01), p. 807-815
    Abstract: Because of their high chemical and thermal resistance and advantageous friction behaviour, polytetrafluoroethylene (PTFE) compounds are frequently used in various engineering applications, especially for pressurized seals. To adjudge the applicability, and to establish a reliable ranking of various compounds with similar composition and micro-structure for tribological systems, a number of bronze-particle-filled PTFE materials (PTFE-Bz compounds) were investigated with a seal test system at the component level. The two best performing materials in these component tests, termed PTFE-Bz9 and PTFE-Bz14 in this article, were then selected for further, more detailed thermo-mechanical and tribological investigations on a laboratory specimen level. Furthermore, extensive failure analysis of both the worn seals and the test specimens were carried out using laser confocal and scanning electron microscopy techniques. Finally, based on the experimental results a model for describing the functionality and of the failure behaviour of these materials was developed and described.
    Type of Medium: Online Resource
    ISSN: 1350-6501 , 2041-305X
    URL: Article
    DOI: 10.1243/13506501JET549
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2032767-5
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
  • 2
    Online Resource
    Online Resource
    Does One Size Fit All? The Suitability of Answer Formats for Different Constructs Measured
    SAGE Publications ; 2009
    In:  Australasian Marketing Journal Vol. 17, No. 1 ( 2009-05), p. 58-64
    Details
    In: Australasian Marketing Journal, SAGE Publications, Vol. 17, No. 1 ( 2009-05), p. 58-64
    Abstract: Survey research is used to investigate a variety of different constructs, such as beliefs, behavioural intentions, perceptions, preferences and so on. Despite the wide range of constructs studied by social scientists, the ordinal answer format tends to be used across the majority of survey research studies. We challenge this standard approach in survey research by hypothesizing that the ordinal answer format is not optimal under all circumstances. Instead, we propose that the suitability of answer formats depends on the construct measured. We conduct a repeat measurement study using binary, ordinal and metric answer formats measuring two different constructs: beliefs and behavioural intentions. A clear interaction effect between answer formats and constructs is revealed. This supports the notion that no single answer format is optimal for all research problems, but that some constructs are naturally more suitable for certain answer formats than others. These findings call for increased use of pre-studies to determine the optimal answer format before fieldwork is conducted rather than relying on standard answer formats.
    Type of Medium: Online Resource
    ISSN: 1839-3349 , 1839-3349
    URL: Article
    DOI: 10.1016/j.ausmj.2009.04.001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    SSG: 3,2
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  • 3
    Online Resource
    Online Resource
    Question Stability in Brand Image Measurement: Comparing Alternative Answer Formats and Accounting for Heterogeneity in Descriptive Models
    SAGE Publications ; 2007
    In:  Australasian Marketing Journal Vol. 15, No. 2 ( 2007-12), p. 26-41
    Details
    In: Australasian Marketing Journal, SAGE Publications, Vol. 15, No. 2 ( 2007-12), p. 26-41
    Abstract: High quality image data on how consumers perceive brands is essential to make good brand management decisions. Prior studies reveal that brand images are not very reliable, as they are typically measured in industry, which might be due to the answer format typically used (Rungie et al., 2005). The practical implication is that brand image data — as currently collected in consumer surveys — is not a valid source of market information. We challenge this implication. Using three measures of stability we test whether the binary answer format produces image data less reliable than alternative formats. We investigate whether the aggregate descriptive model of brand image stability proposed by Rungie et al. can be improved by accounting for heterogeneity. Results indicate that, compared to alternative formats, binary answer formats lead to equal stability levels, and most brand-attribute associations are stable. Unstable associations typically fail to describe adequately the brands under study. Practical implications include that binary brand-attribute associations can be used safely to measure brand images. Also, practitioners can get guidance about required brand management measures by discriminating between stable and unstable brand-attribute associations. A model that helps managers classify brand-attribute associations into stable or unstable is proposed in the article.
    Type of Medium: Online Resource
    ISSN: 1839-3349 , 1839-3349
    URL: Article
    DOI: 10.1016/S1441-3582(07)70041-1
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2007
    SSG: 3,2
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  • 4
    Online Resource
    Online Resource
    Reducing Hyperactivity with a Feedback Actigraph: Initial Findings
    SAGE Publications ; 2006
    In:  Clinical Child Psychology and Psychiatry Vol. 11, No. 4 ( 2006-10), p. 607-617
    Details
    In: Clinical Child Psychology and Psychiatry, SAGE Publications, Vol. 11, No. 4 ( 2006-10), p. 607-617
    Abstract: Schulman and colleagues demonstrated that classroom activity level can be reduced in hyperactive boys using activity-level feedback and positive reinforcement. This article reports preliminary results using a device that combines modern beeper and actigraphy technology for the purpose of measuring, monitoring, and modifying motor excess in children with confirmed diagnoses of Attention Deficit Hyperactivity Disorder (ADHD). Nine boys ranging in age from 8 to 9 years with the ADHD Combined Type wore prototype BuzzBee® feedback actigraphs during school periods and were reinforced for activity-level reductions in the context of a simple pre/post research design. The findings indicated that 7 of the 9 boys reduced their activity level from 20 to 47% of baseline levels while the activity levels of the two remaining boys increased from 2 to 7% of baseline levels. These changes were statistically significant and constitute a large effect.
    Type of Medium: Online Resource
    ISSN: 1359-1045 , 1461-7021
    URL: Article
    DOI: 10.1177/1359104506067881
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2006
    detail.hit.zdb_id: 2004602-9
    SSG: 5,2
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
  • 5
    Online Resource
    Online Resource
    Challenging “Factor–Cluster Segmentation”
    SAGE Publications ; 2008
    In:  Journal of Travel Research Vol. 47, No. 1 ( 2008-08), p. 63-71
    Details
    In: Journal of Travel Research, SAGE Publications, Vol. 47, No. 1 ( 2008-08), p. 63-71
    Abstract: The concept of market segmentation has been widely accepted and warmly embraced both by tourism industry and academia. In tourism research, this increased interest in segmentation studies has led to the emergence of a standard research approach. Most notably a concept referred to as “factor–cluster segmentation” has been broadly adopted. The aim of this article is to demonstrate that this approach is not generally the best procedure to identify homogeneous groups of individuals (market segments).
    Type of Medium: Online Resource
    ISSN: 0047-2875 , 1552-6763
    URL: Article
    DOI: 10.1177/0047287508318910
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2008
    detail.hit.zdb_id: 2036634-6
    SSG: 14
    SSG: 3,2
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
  • 6
    Online Resource
    Online Resource
    Anomalies of the Ear in the Pierre Robin Triad
    SAGE Publications ; 2005
    In:  Annals of Otology, Rhinology & Laryngology Vol. 114, No. 8 ( 2005-08), p. 605-613
    Details
    In: Annals of Otology, Rhinology & Laryngology, SAGE Publications, Vol. 114, No. 8 ( 2005-08), p. 605-613
    Abstract: The Pierre Robin triad (PRT) consists of micrognathia-retrognathia, glossoptosis, and an oval or cleft palate. The goal of this study was to identify patterns of similarity to and differences from the two previous temporal bone studies of the PRT. Methods: Seven children with the PRT (ages, 45 minutes to 2 years; gestational ages, 41 to 43 weeks) were studied. Thirteen temporal bones were decalcified, sectioned at a thickness of 20 μm, and studied by light microscopy. Results: Our study demonstrated multiple architectural anomalies involving the entire ear, including abnormal auricles, and anomalies of the ossicles, including abnormal stapes footplates (6/13). All children showed signs of middle ear infection (12/13). Anomalies of the inner ear included aplasia of the lateral semicircular canals (5/13), a large vestibular aqueduct (2/13), and unusually large otoconia (1/13). In the mastoid process there were islands of cartilage in the expected position of Reichert's cartilage (9/13) and dehiscence of the fallopian canal (11/13). Loss of cochlear hair cells was seen in children who had antemortem hypoxia. Conclusions: Although the PRT is caused by various genes, most anomalies can be traced to the development of the first and second branchial arches.
    Type of Medium: Online Resource
    ISSN: 0003-4894 , 1943-572X
    URL: Article
    DOI: 10.1177/000348940511400805
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2005
    detail.hit.zdb_id: 2033055-8
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  • 7
    Online Resource
    Online Resource
    How e-communities extend the concept of exchange in marketing: An application of the motivation, opportunity, ability (MOA) theory
    SAGE Publications ; 2005
    In:  Marketing Theory Vol. 5, No. 1 ( 2005-03), p. 33-49
    Details
    In: Marketing Theory, SAGE Publications, Vol. 5, No. 1 ( 2005-03), p. 33-49
    Abstract: Customer-to-customer (C2C) know-how exchanges occur in a variety of contexts, including virtual environments of Internet mediated communities. Exchange of know-how that takes place among the customers of an organization's offering has the potential to create customer value and result in positive outcomes for organizations. This study proposes a model that examines key factors that drive C2C exchanges as well as the outcomes of these exchanges. The model shows how C2C exchanges create value for the marketing organization – that is, value over and above the value that the customer receives directly through exchanges with the organization. C2C exchanges are also proposed to enhance loyalty intentions. Viewing C2C know-how exchange as an information source to the customer, the model adapts and applies the motivation, opportunity, and ability (MOA) theory to explain levels of C2C know-how exchange.
    Type of Medium: Online Resource
    ISSN: 1470-5931 , 1741-301X
    URL: Article
    DOI: 10.1177/1470593105049600
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2005
    detail.hit.zdb_id: 2072860-8
    SSG: 3,2
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    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
  • 8
    Online Resource
    Online Resource
    Environmentally Friendly Behavior : Can Heterogeneity Among Individuals and Contexts/ Environments Be Harvested for Improved Sustainable Management?
    SAGE Publications ; 2009
    In:  Environment and Behavior Vol. 41, No. 5 ( 2009-09), p. 693-714
    Details
    In: Environment and Behavior, SAGE Publications, Vol. 41, No. 5 ( 2009-09), p. 693-714
    Abstract: The study of behavior with environmental consequences (recycling, water conservation, etc.) has received significant attention from social scientists over the past few decades. However, few studies have closely examined the systematic heterogeneity of behavior with environmental consequences. This study tests two specific hypotheses about such heterogeneity: that individuals differ systematically in their patterns of behavior with environmental consequences and that behavioral patterns systematically differ between context/environments. Both hypotheses are investigated empirically in the home and vacation environment. Results support the assumption that systematic differences in behavioral patterns exist across individuals. With respect to context/environment dependence, some groups of individuals do not change their behavior much between contexts/environments. The majority, however, tend to engage in fewer proenvironmental behaviors in the vacation context. These findings have significant implications for environmentally sustainable management, both for local councils and tourism destinations.
    Type of Medium: Online Resource
    ISSN: 0013-9165 , 1552-390X
    URL: Article
    DOI: 10.1177/0013916508319448
    RVK:
    MN 1000
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 1500133-7
    detail.hit.zdb_id: 280662-9
    SSG: 5,2
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    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
  • 9
    Online Resource
    Online Resource
    Visualization Summit 2007: Ten Research Goals for 2010
    SAGE Publications ; 2007
    In:  Information Visualization Vol. 6, No. 3 ( 2007-09), p. 169-188
    Details
    In: Information Visualization, SAGE Publications, Vol. 6, No. 3 ( 2007-09), p. 169-188
    Abstract: At the first international Visualization Summit, more than 100 international researchers and practitioners defined and assessed nine original and important research goals in the context of Visualization Science, and proposed methods for achieving these goals by 2010. The synthesis of the whole event is presented in the 10th research goal. This article contributes a building block for systemizing visualization research by proposing mutually elaborated research goals with defined milestones. Such a consensus on where to go together is only one step toward establishing visualization science in the long-term perspective as a discipline with comparable relevance to chemistry, mathematics, language, or history. First, this article introduces the conference setting. Second, it describes the research goals and findings from the nine workshops. Third, a survey among 62 participants about the originality and importance of each research goal is presented and discussed. Finally, the article presents a synthesis of the nine research goals in the form of a 10th research goal, namely ‘Visualizing Future Cities’. The article is relevant for visualization researchers, trend scouts, research programme directors who define the topics that get funds.
    Type of Medium: Online Resource
    ISSN: 1473-8716 , 1473-8724
    URL: Article
    DOI: 10.1057/palgrave.ivs.9500158
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2007
    detail.hit.zdb_id: 2083606-5
    detail.hit.zdb_id: 2078513-6
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
    FH Potsdam
  • 10
    Online Resource
    Online Resource
    Fundamentals of optimizing aluminium-based journal bearing materials
    SAGE Publications ; 2009
    In:  Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Vol. 223, No. 5 ( 2009-05-01), p. 777-785
    Details
    In: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, SAGE Publications, Vol. 223, No. 5 ( 2009-05-01), p. 777-785
    Abstract: In this article, a test methodology of model scale is used to visualize the processes taking place during operation and subsequent breakdown in the boundary layer of journal bearing materials. The investigated materials are alloys of aluminium (Al99.6, AlSn20Cu, AlSn40) and tin (SnSb7.5Cu3.5). The utilized test configuration is based on a ring-on-disc system. The employed seizure test procedure was designed in previous studies. The tribometric results clearly show differences in the tribological behaviour between the materials. A series of tests are carried out to explain the observed differences. The frictional surfaces and microsections are observed using microscopy and microindentation. Pure aluminium is characterized both by a potentially low coefficient of friction and an unforgiving overload behaviour. This is due to the fact that components based on pure aluminium tend to lose system stability spontaneously. As more of the soft-phase Sn is added to the matrix, the emergency running properties improve. The system behaves less erratically and the overload behaviour improves. However, the mechanical strength and the wear resistance drop. Tribological functional models summarize the results of tribometrics and damage analysis. These models are the key to further optimization of the materials.
    Type of Medium: Online Resource
    ISSN: 1350-6501 , 2041-305X
    URL: Article
    DOI: 10.1243/13506501JET546
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2032767-5
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    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
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