1,721,111 research outputs found
Fritz C., Tosello G. (2010) – Marsoulas, renaissance d’une grotte ornée, Paris, Errance
No full textPaillet Patrick. Fritz C., Tosello G. (2010) – Marsoulas, renaissance d’une grotte ornée, Paris, Errance. In: Bulletin de la Société préhistorique française, tome 108, n°2, 2011. pp. 3-4
Characterization and analysis of microchannels and sub-micron surface roughness of injection moulded microfluidic systems using optical metrology
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Surface topography analysis for dimensional quality control of replication at the micrometre scale
No full textReplication of geometrical features and surfaces are present at different production levels, from realization of moulds to final product. Geometrical features must be reproduced within specification limits, to ensure product functionality . In order to control the replication quality, mould and replica surfaces must be quantitatively analysed and compared. In the present work, reference simulated surfaces were considered and studied in order to evaluate the effectiveness and traceability of different analysis tools for replication quality control. Topographies were analysed simulating different surface mapping techniques, such as optical profilometry, scanning probe microscopy and scanning electron microscopy. Different strategies for surface analysis and comparison are proposed and discussed taking into account the instrument, the measuring range and the functionality of the surface
Development and validation of a novel approach to the calibration of internal and external threads on coordinate measuring machines
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
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