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  • 1
    Language: English
    In: J. Phys. Chem. B, 02 March 2010, Vol.114(Mar. 2, 2010)
    Description: State-of-the-art methodologies for the conversion of solar thermal power to electricity are based on conventional electromagnetic induction techniques. If appropriate ZT = 4 thermoelectric materials were available, it is likely that conversion efficiencies of 30-40% could be achieved. The availability of all solid state electricity generation would be a long awaited development in part because of the elimination of moving parts. This paper presents a preliminary examination of the potential performance of ZT = 4 power generators in comparison with Stirling engines taking into account specific mass, volume and cost as well as system reliability. High-performance thermoelectrics appear to have distinct advantages over magnetic induction technologies.
    Keywords: Materials Science ; Availability ; Electricity ; Energy Conversion ; Induction ; Performance ; Reliability ; Stirling Engines ; Thermoelectric Materials
    ISSN: 15205207
    E-ISSN: 15205207
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  • 2
    Language: English
    In: Industrial Marketing Management, August, 2013, Vol.42(6), p.872(8)
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.indmarman.2013.05.013 Byline: Talai Osmonbekov, Thomas Gruen Abstract: Manufacturer-reseller e-business arrangements are changing the nature of channel relationships. When manufacturers supply e-business tools to their resellers, resellers may perceive that the benefits of technology are not shared equitably. This research explores this issue by examining two technology based antecedents of perceived inequity from the reseller perspective. We also examine the impact of perceived inequity on relationship performance, and the moderating role of reseller dependence on the proposed inequity-performance link. The results of the empirical test involving a sample of 224 resellers suggest that perceived inequity negatively impacts relationship performance, while reseller dependence plays a moderating role. Implications of these findings for researchers and managers are discussed. Article History: Received 1 September 2012; Revised 28 March 2013; Accepted 23 April 2013
    Keywords: E-commerce
    ISSN: 0019-8501
    E-ISSN: 18732062
    Source: Cengage Learning, Inc.
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  • 3
    Language: English
    In: Nature, 7/2010, Vol.466(7303), pp.189-190
    Description: By 1.3 million years ago, humans were established in the Mediterranean as indicated by fossils from Sima del Elefante, near Burgos, Spain5, and several archaeological sites in Spain, southern France and Italy6. [...] the Happisburgh site was found and described, it was thought that these early humans were reluctant to live in the lesshospitable climate of northern Europe, which frequently fell into the grip of severe ice ages.
    Keywords: Adaptation, Physiological–History ; Animals–Chemistry ; Archaeology–History ; Climate–Instrumentation ; Emigration & Immigration–Instrumentation ; Fossils–Instrumentation ; Geologic Sediments–Instrumentation ; Great Britain–Instrumentation ; History, Ancient–Instrumentation ; Hominidae–Instrumentation ; Humans–Instrumentation ; Magnetics–Instrumentation ; Paleontology–Instrumentation ; Seasons–Instrumentation ; Technology–Instrumentation ; Technology–Instrumentation ; Temperature–Instrumentation ; Fossils ; Nonfiction ; Soil Erosion ; Environmental Conditions;
    ISSN: 0028-0836
    E-ISSN: 1476-4687
    Source: Nature Publishing Group (via CrossRef)
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  • 4
    Language: English
    In: The Lancet, 22 September 2012, Vol.380(9847), pp.1099-1108
    Description: Most surgeons have adopted damage control surgery for severely injured patients, in which the initial operation is abbreviated after control of bleeding and contamination to allow ongoing resuscitation in the intensive-care unit. Developments in early resuscitation that emphasise rapid control of bleeding, restrictive volume replacement, and prevention or early management of coagulopathy are making definitive surgery during the first operation possible for many patients. Improved topical haemostatic agents and interventional radiology are becoming increasingly useful adjuncts to surgical control of bleeding. Better understanding of trauma-induced coagulopathy is paving the way for the replacement of blind, unguided protocols for blood component therapy with systemic treatments targeting specific deficiencies in coagulation. Similarly, treatments targeting dysregulated inflammatory responses to severe injury are under investigation. As point-of-care diagnostics become more suited to emergency environments, timely targeted intervention for haemorrhage control will result in better patient outcomes and reduced demand for blood products. Our Series paper describes how our understanding of the roles of the microcirculation, inflammation, and coagulation has shaped new and emerging treatment strategies.
    Keywords: Medicine
    ISSN: 0140-6736
    E-ISSN: 1474-547X
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  • 5
    In: Nature, 2010, Vol.466(7303), p.189
    Keywords: Adaptation, Physiological–History ; Animals–Chemistry ; Archaeology–History ; Climate–Instrumentation ; Emigration and Immigration–Instrumentation ; Fossils–Instrumentation ; Geologic Sediments–Instrumentation ; History, Ancient–Instrumentation ; Hominidae–Instrumentation ; Humans–Instrumentation ; Magnetics–Instrumentation ; Paleontology–Instrumentation ; Seasons–Instrumentation ; Technology–Instrumentation ; Temperature–Instrumentation ; United Kingdom–Instrumentation;
    ISSN: 0028-0836
    E-ISSN: 14764687
    Source: Nature Publishing Group
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  • 6
    Language: English
    In: Photogrammetric Record, March, 2012, Vol.27, p.36(22)
    Description: To authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1477-9730.2011.00671.x Byline: Armin Gruen (1) Keywords: DSM generation; empirical tests; image matching; least squares; multi-image; multiple image features Abstract: Abstract Image and template matching is probably the most important function in digital photogrammetry and also in automated modelling and mapping. Many approaches for matching have evolved over the years, but the problem is still unsolved in general terms. This paper describes the development of image matching techniques in photogrammetry over the past 50 years, addresses the results of some empirical accuracy studies and also provides a critical account of some of the problems that remain.Although automated approaches have quite a number of advantages, the quality of the results is still not satisfactory and, in some cases, far from acceptable. Even with the most advanced techniques, it is not yet possible to achieve the quality of results that a human operator can produce. There is an urgent need for further improvements and innovations, be it through more powerful multi-sensor approaches, thereby enlarging the information spectrum, and/or through advancements in image understanding algorithms, thus coming closer to human capabilities of reading and understanding image content. Abstract (French) Resume L'appariement d'images et de formes est sans doute l'operation la plus importante en photogrammetrie numerique et en modelisation et cartographie automatiques. De nombreuses approches se sont succede depuis des annees mais le probleme n'est toujours pas totalement resolu. Cet article decrit le developpement des techniques d'appariement d'images en photogrammetrie pendant les 50 dernieres annees, presente les resultats obtenus dans quelques etudes de precision empiriques, et dresse un bilan critique des problemes qui subsistent. Bien que les approches automatiques aient un grand nombre d'avantages, la qualite des resultats n'est toujours pas satisfaisante, et meme loin d'etre acceptable dans certains cas. Meme avec les techniques les plus avancees, nous sommes toujours dans l'incapacite d'atteindre la qualite des resultats obtenus par un operateur humain. Il y a un besoin urgent d'ameliorations et d'innovations, soit a travers des approches multi-capteurs plus puissantes et consistant aelargir le spectre d'information, soit a travers une amelioration des algorithmes de comprehension d'images visant a les rendre plus proches des possibilites humaines de lecture et de comprehension du contenu des images. Abstract (German): Zusammenfassung Bild- und Musterkorrelation gehoren zu den wichtigsten Grundfunktionen der Digitalen Photogrammetrie und somit auch der automatischen 3D Modellierung und Kartierung. Viele Ansatze zur Korrelation wurden uber die Jahre entwickelt, aber das Problem gilt grundsatzlich noch immer als ungelost. Dieser Beitrag beschreibt die Entwicklung der Verfahren der Bildkorrelation in der Photogrammetrie uber die letzten 50 Jahre, verweist auf die Ergebnisse einiger empirischer Genauigkeitsstudien und diskutiert einige der immer noch bestehenden Probleme.Obwohl automatische Verfahren eine ganze Reihe von Vorteilen aufweisen, ist doch die Qualitat der Ergebnisse meist nicht ausreichend, teilweise ja sogar weit entfernt von jeglicher Akzeptanz. Selbst mit den hochstentwickelten Verfahren sind wir immer noch nicht in der Lage, die Qualitat der Ergebnisse eines menschlichen Operateurs zu erreichen. Wir benotigen dringend weitere Verbesserungen und Innovationen. Dazu gibt es gegenwartig zwei grundsatzlich gangbare Wege: (a) Nutzung von Multi-Sensor Informationen und somit Erweiterung der Informationsgrundlagen und/oder (b) durch Fortschritte bei den Algorithmen des Bildverstehens und somit besserer Modellierung des menschlichen Prozesses des Bildverstehens. Abstract (Spanish): Resumen La correspondencia de imagenes y muestras es, probablemente, la funcion mas importante en la fotogrametria digital, en el modelado 3D y en la cartografia automatica. Muchos metodos de correspondencia han evolucionado a lo largo de los anos pero, en terminos generales, el problema se considera aun no resuelto completamente. Este articulo describe la evolucion de las tecnicas de correspondencia de imagenes en la fotogrametria a lo largo de los ultimos 50 anos, analiza los resultados de algunos estudios empiricos de la exactitud, y ofrece una valoracion critica de los problemas aun sin resolver. Aunque los metodos automaticos poseen un gran numero de ventajas, la calidad de los resultados no es todavia satisfactoria y, en algunos casos, incluso esta lejos de ser aceptable. Incluso con las mas avanzadas tecnicas no somos capaces de lograr la calidad de los resultados que un operador humano puede conseguir. Hay una necesidad urgente de continuar las mejoras e innovaciones, ya sea mediante la utilizacion de multiples sensores que incrementen el espectro de la informacion, o por avances en los algoritmos de comprension de la imagen que permitan acercarnos mas a la capacidad humana de lectura e interpretacion de su contenido. Author Affiliation: (1)(armin.gruen@geod.baug.ethz.ch) Institute of Conservation and Building Research, ETH Zurich, Switzerland
    Keywords: Algorithms -- Analysis
    ISSN: 0031-868X
    Source: Cengage Learning, Inc.
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  • 7
    Language: English
    In: Industrial Marketing Management, August 2013, Vol.42(6), pp.872-879
    Description: Manufacturer–reseller e-business arrangements are changing the nature of channel relationships. When manufacturers supply e-business tools to their resellers, resellers may perceive that the benefits of technology are not shared equitably. This research explores this issue by examining two technology based antecedents of perceived inequity from the reseller perspective. We also examine the impact of perceived inequity on relationship performance, and the moderating role of reseller dependence on the proposed inequity–performance link. The results of the empirical test involving a sample of 224 resellers suggest that perceived inequity negatively impacts relationship performance, while reseller dependence plays a moderating role. Implications of these findings for researchers and managers are discussed.
    Keywords: Inequity ; E-Business Tools ; Performance ; Reseller Dependence ; Manufacturer–Reseller Relationships ; Business
    ISSN: 0019-8501
    E-ISSN: 1873-2062
    Source: ScienceDirect Journals (Elsevier)
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  • 8
    In: Medical Journal of Australia, September 2013, Vol.199(5), pp.310-311
    Description: The dilemma that clinicians involved in the resuscitation of severely injured patients face with regards to the inclusion of tranexamic acid (TxA) in trauma management protocols is discussed. However, on the other hand, the need for more evidence to solve ongoing knowledge gaps has been emphasised, especially evidence of who benefits and whether anyone is harmed when TxA is administered to patients treated to modern civilian and military trauma standards.
    Keywords: Emergency Medicine
    ISSN: 0025-729X
    E-ISSN: 1326-5377
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  • 9
    Language: English
    In: The Lancet, 2011, Vol.377(9771), pp.1052-1054
    Description: Unlike coagulopathy that is secondary to haemodilution, hypothermia, or acidosis, acute traumatic coagulopathy is a hyperacute process in which systemic fibrinolysis releases D-dimers that are detectable within 30 min of injury.5 While the mechanisms are poorly understood, shock and tissue injury seem to be important initiators.6 Not all severely injured patients develop acute coagulopathy, but those who do are much more likely to die and to die early.7 The earlier that tranexamic acid is administered, the more likely it might be to prevent full activation of fibrinolysis. Helicopter and road transport direct to major trauma centres has reduced overall injury mortality, but has extended the time before patients reach hospital.10 Prehospital administration of blood products, especially plasma, is uncommon in civilian settings, resulting in little directed management of coagulopathy.
    Keywords: Medicine
    ISSN: 0140-6736
    E-ISSN: 1474-547X
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  • 10
    Language: English
    In: Journal of Business Research, September 2013, Vol.66(9), pp.1298-1306
    Description: Survey research remains the most popular source of market knowledge, yet researchers have not yet established one consistent technique for measuring responses. Some market research companies offer respondents two answer options; others five or seven. Some answer formats use middle points on the answer scales, others do not. Some formats verbalize all answer options, some only the endpoints. The wide variety of answer formats that market research companies and academic researchers use makes comparing results across studies virtually impossible. This study offers guidance for market researchers by presenting empirical translations for the answer formats they most commonly use, thus enabling easier comparisons of results.
    Keywords: Questionnaire Design ; Survey Research ; Answer Formats ; Likert ; Business ; Economics
    ISSN: 0148-2963
    E-ISSN: 1873-7978
    Source: ScienceDirect Journals (Elsevier)
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