1,720,964 research outputs found
Laubholzarten mit niedriger Lebensdauer als Rohstoff zur Holzwerkstoffherstellung, Teil 1: Analytische Untersuchungen und Abgabe von flüchtigen organischen Substanzen (VOC)
No full textLaubholzarten mit niedriger Lebensdauer als Rohstoff zur Holzwerkstoffherstellung, Teil 1: Analytische Untersuchungen und Abgabe von flüchtigen organischen Substanzen (VOC)
No full textLaubholzarten mit niedriger Lebensdauer als Rohstoff zur Holzwerkstoffherstellung, Teil 2: Werkstoffeigenschaften von Unoriented Strand Boards
No full textStorage-induced emissions from different wood species
No full textIn this study, the extractive contents and the storage-induced emissions from chips of Salix alba, Betula pendula, Populus tremula, and Alnus glutinosa are compared with emissions from Pinus sylvestris chips. Soxhlet extraction was performed, and carbon monoxide (CO) and O-2 concentration in the gas phase as well as gas chromatography-mass spectrometry analysis of volatile organic compounds were analyzed. Pinus sylvestris showed the highest extractive content in the petrol ether fraction and emitted CO in the highest concentration. Salix alba, B. pendula, P. tremula, and A. glutinosa have lower extractive contents in the petrol ether fraction and the CO concentrations decreased in the headspace accordingly. The emission of aldehydes was lower in the case of woods with lower petrol ether contents (P. sylvestris, S. alba, and B. pendula), but the situation was not as clear for P. tremula and A. glutinosa. The origin of CO and aldehyde emissions is discussed in view of the possible oxidative degradation processes of lipids and terpenes.BMELV; FN
Laubholzarten mit niedriger Lebensdauer als Rohstoff zur Holzwerkstoffherstellung, Teil 2: Werkstoffeigenschaften von Unoriented Strand Boards
No full textProduction and characterisation of wood-fibre insulation boards (WFIB) from hardwood fibres and fibre blends
No full textInvestigation of various hardwood and softwood fibres for the usage in wood-fibre insulation panels
No full textFachagentur für Nachwachsende Rohstoffe e.V 10.13039/50110001081
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
Variations on the Author
Full text link“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
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