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  • De Gruyter  (3)
  • American Association for the Advancement of Science (AAAS)
  • Nürnberg: Institut für Arbeitsmarkt- und Berufsforschung (IAB)
  • 2010-2014  (4)
  • 1
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    Advancing translational research (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bolon, Brad -- Altrock, Bruce -- Barthold, Stephen W -- Baumgarth, Nicole -- Besselsen, David -- Boivin, Gregory -- Boyd, Kelli L -- Brayton, Cory -- Cardiff, Robert D -- Couto, Suzana -- Eaton, Kathryn A -- Foreman, Oded -- Griffey, Stephen M -- La Perle, Krista -- Lairmore, Michael D -- Liu, Chen -- Meyerholz, David K -- Nikitin, Alexander Yu -- Schoeb, Trenton R -- Schwahn, Denise -- Sellers, Rani S -- Sundberg, John P -- Tolwani, Ravi -- Valli, Victor E -- Zink, M Christine -- U01 CA141582/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1516-7. doi: 10.1126/science.331.6024.1516-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436422" target="_blank"〉PubMed〈/a〉
    Keywords: National Institutes of Health (U.S.)/*organization & administration ; Translational Medical Research/*organization & administration ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    A coarse Bayesian approach to evaluate luminescence ages (2013)
    De Gruyter
    Details
    Publication Date: 2013-06-01
    Description: This paper develops a simplified Bayesian approach to evaluate a luminescence age. We limit our purpose to the cause-effect relationship between the age and the accumulated dose. The accumulated dose is given as a function of the age and several others parameters: internal radionuclides contents, gamma dose rate, cosmic dose rate, alpha efficiency, wetness, conversion factors, wetness coefficients, fading rate and storage time. The age is the quantity we are looking for. Bayes’ theorem expresses the changes on the probability distribution of age due to the luminescence study. The information before study (prior) comprises what is previously known about the age and the archaeological model (cultural period, stratigraphic relations, type, etc.) as well as the parameters of the physical model. The accumulated dose consists in the data describing the measurement. The various stages of Bayesian approach were implemented using the software WinBugs. Simulated data sets were used in various models. We present various small models representing typical examples encountered in luminescence dating.
    Print ISSN: 1733-8387
    Electronic ISSN: 1897-1695
    Topics: Archaeology , Geosciences
    Published by De Gruyter
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  • 3
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    Applying digital image correlation to wood strands: Influence of loading rate and specimen thickness (2010)
    De Gruyter
    Details
    Publication Date: 2010-10-01
    Description: Previous studies were devoted to various applications of digital image correlation (DIC) to wood and wood-based composites. However, the focus of these studies was qualitative strain distribution. Overall, there is a lack of testing protocols of DIC for quantifying the elastic properties of woody materials. The objective of this study was to investigate the effects of different specimen thicknesses and loading rates on measurement of Young's modulus and Poisson's ratio by DIC. Young's modulus from DIC decreased as thickness increased at a loading rate of 0.254 mm min-1. Comparing the different loading rates at a thickness of 0.794 mm, Young's modulus from DIC was not in agreement with the value obtained by means of the extensometer regardless of loading rate. However, Young's modulus from DIC at a thickness of 0.381 mm and a loading rate of 0.254 mm min-1 was in good agreement with the corresponding Young's modulus obtained by an extensometer. Poisson's ratio measured from different loading rates and specimen thicknesses was not significantly different between the two measurement systems. From the testing arrangement applied for this study, it is recommended that DIC should be applied at a loading rate of 0.254 mm min-1 or slower for strands with a thickness of 0.381 mm or less.
    Print ISSN: 0018-3830
    Electronic ISSN: 1437-434X
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by De Gruyter
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  • 4
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    Characterization of mixed-mode I/II fracture properties of adhesively bonded yellow-poplar by a dual actuator test frame instrument (2012)
    De Gruyter
    Details
    Publication Date: 2012-07-01
    Description: Experimental results for the fracture behavior under mixed-mode in-plane loading conditions of adhesively bonded wood specimens are reported. The material systems considered involved yellow-poplar (Liriodendron tulipifera), a hardwood of the Magnoliaceae family, as adherends bonded with two different adhesives, a moisture-cure polyurethane (PU) and a phenol/resorcinol/formaldehyde (PRF) resin. A dual actuator test frame permitted fine scanning of fracture behavior over a full range of mixed-mode I/II levels for double cantilever beam (DCB) geometry specimens. These tests showed that, in the considered material systems, the critical strain energy release rate, c, tends to increase as the mode-mixity of the loading increases. In particular, the increase is steeper in proximity to pure mode II loading for the PRF bonded specimens. The experimental values of c obtained were fairly scattered, as is common when testing wood systems. This variability is due in part to the natural variability of wood but also to other factors such as the orientation of the grain in the bonded beams and variations of bondline thickness. In particular, measurements of adhesive layer thickness were performed. This analysis was implemented with microscopic examination of samples cut from untested DCB specimens, where the bondline had not been disrupted by the test. Although the wood parts were power planed prior to bonding, rather large variations of the adhesive layer thickness were observed: on the order of 1–100 μm for specimens bonded with the PU resin and 10–50 μm for specimens bonded with the PRF resin, which showed somewhat more consistent fracture behavior.
    Print ISSN: 0018-3830
    Electronic ISSN: 1437-434X
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by De Gruyter
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