1,723,900 research outputs found
Prediction of ISO 9705 Room/Corner Test Results. Volume 1
No full text1999Final ReportPDFTech ReportCG-D-22-99, IDTCG39-99-F-E00159R&DC -215-99, ICalorimetersCombustionFire fighting equipmentHeat resistant materialsTest proceduresBench testsCalorimetersCoast guardCombustionCompartment lining materialsFire protectionFire resistant materialsFire safetyFire suppressionHeatIso 9705Iso(InternatMathematical modelsMathematical predictionStandardsTest methodsUnited StatesConnecticutUnited States. Coast Guard. Marine Safety OfficeBeyler, Craig L.Hunt, Sean P.Lattimer, Brian Y.Iqbal, NaeemLautenberger, ChrisDembsey, NicholasBarnett, JonathanJanssens, Marc L.Dillon, ScottGreiner, AndrewUnited States. Coast Guard. Marine Safety and Environmental ProtectionHughes Associates, inc.United States. Coast Guard. Office of Research and DevelopmentUS Transportation CollectionThe full-scale International Standards Organization (ISO) 9705 Room/Comer Test is currently used to regulate compartment-lining materials in the High Speed Craft (HSC) Code. This test method involves the use of large amounts of material so that the test method is an impediment in developing new materials. Bench-scale tests like the Cone Calorimeter and the Lateral Ignition Flame Test (LIFT) Apparatus may provide indications of full-scale performance in the ISO 9705. The objective of this work is to assess if correlations and mathematical models based on bench-scale data can predict material performance in the ISO 9705 Test. The results of this project show that it is possible to learn a great deal about the expected performance of materials in the ISO 9705 Test from bench-scale tests like the Cone Calorimeter and the LIFT Apparatus. Both the simple correlations using the Flammability Parameter deduced from the Cone Calorimeter and the mathematical models using Cone Calorimeter and LIFT data provided clear insights into the burning behavior of materials in the ISO 9705 Test. The Flammability Parameter deduced from Cone Calorimeter data was able to correlate the heat release rate and time to flashover in the ISO 9705 Test. This provides the opportunity to obtain significant information concerning expected ISO 9705 performance from a few tests of small samples. It is significant that LIFT results are not required to allow correlation of the performance of U.S. Coast Guard (USCG) HSC Materials. The mathematical models performed well in predicting the heat release rate and time to flashover in the ISO 9705 Test. These more sophisticated methods provide additional confidence in the ability of bench-scale tests to be used to predict the performance of materials in the ISO 9705 Test. Further, these models have the potential to allow prediction of realistic scenarios, which differ from the ISO 9705 Test method. Neither correlations from the Cone Calorimeter nor the mathematical models adequately predict the smoke generation rates in the ISO 9705 Test. The inability to predict smoke generation is particularly significant for materials that pass the heat release rate criteria in ISO 9705. Significant additional work is needed in this area. Volume I of this report contains the objectives, approach, test results, and conclusions. Volume I! consists of three appendices; a) prediction based on Quintiere's model; b) evaluation of Worcester Polytechnic Institute (WPI) zone model, and c) Hughes Associates/U.S. Navy Coiner Flame Spread model and comparison with USCG ISO 9705 Test results.81
Linked collectors and determiners for: Semillas de árboles del bosque seco tropical de Colombia.
No full textNatural history specimen data linked to collectors and determiners held within, "Semillas de árboles del bosque seco tropical de Colombia". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/00e733c8-8050-4f19-9705-66cffafdca50">https://bionomia.net/dataset/00e733c8-8050-4f19-9705-66cffafdca50</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/00e733c8-8050-4f19-9705-66cffafdca50">https://gbif.org/dataset/00e733c8-8050-4f19-9705-66cffafdca50</a>. Formatted as a Frictionless Data package
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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