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Rockfestivaalin kriisiviestintä : Roskilden vuoden 2000 tragedia
2010
Tässä tutkimuksessa tutkittiin rockfestivaalin kriisiviestintää festivaaliorganisaation ja sen yhden sidosryhmän näkökulmasta. Kriisiviestintä on aiheena ajankohtainen niin viestinnän tutkimuksessa kuin yhteisöjen käytännön toiminnassa. Festivaalit ovat lisäksi yhteiskunnallisesti kiinnostava tutkimuskohde. Kriisiviestinnän teoria nivottiin tapahtuma- ja festivaaliorganisaatioiden toimintaympäristöön. Tapauksena oli yksi festivaalialan isoimmista onnettomuuksista; vuonna 2000 tanskalaisella Roskilde-festivaalilla kuoli yhdeksän henkilöä lavanedusruuhkassa. Kriisiviestintään, kriisin vaikutuksiin ja median kriisitoimintaan liittyviä kysymyksiä selvitettiin organisaation omasta ja suomalaisen…
A Framework to Facilitate Wireless Sensor Network Application Development
2013
Elektroniskā versija nesatur pielikumus
A probabilistic long‐term framework for site‐specific erosion analysis of wind turbine blades: A case study of 31 Dutch sites
2021
Abstract Rain‐induced leading‐edge erosion (LEE) of wind turbine blades (WTBs) is associated with high repair and maintenance costs. The effects of LEE can be triggered in less than 1 to 2 years for some wind turbine sites, whereas it may take several years for others. In addition, the growth of erosion may also differ for different blades and turbines operating at the same site. Hence, LEE is a site‐ and turbine‐specific problem. In this paper, we propose a probabilistic long‐term framework for assessing site‐specific lifetime of a WTB coating system. Case studies are presented for 1.5 and 10 MW wind turbines, where geographic bubble charts for the leading‐edge lifetime and number of repai…
Cyclists' Perception of Maintenance and Operation of Cycling Infrastructure—Results From a Norwegian Survey
2021
Aasvik O and Bjørnskau T (2021) Cyclists’ Perception of Maintenance and Operation of Cycling Infrastructure—Results From a Norwegian Survey. Front. Psychol. 12:696317. doi: 10.3389/fpsyg.2021.696317 The Norwegian authorities want to limit the extent of car use in city areas to existing levels. Such a limitation would help combat climate change, improve health of citizens, and alleviate congestion. This implies that any further increase in transport needs will have to be met by walking, cycling and use of public transport. Reaching this ambitious goal requires knowledge about cyclists' preferences concerning operation and maintenance (M&O) of roads and foot/cycle paths. Previous research sug…
Evaluation of web-based implementation for O&M functionality in mobile core network
2006
Academic achievement and self-concept of deaf and hard-of-hearing and hearing students transitioning from the first to second cycle of primary school…
2018
ABSTRACTThis study was done to examine the transition of deaf and hard-of-hearing (DHH) and hearing students from the first cycle (Grade 4) to the second cycle (Grade 5) of primary education in Ethiopia. Academic achievement and self-concept were measured longitudinally with 103 DHH and hearing students. Participants were selected from three different settings (special schools, special classes and regular schools). Self-Description Questionnaire I (Marsh, H. W. 1990. Self-Description Questionnaire – I (SDQ I). Manual. MacArthur, NSW, Australia: University of Western Sydney) was used to measure the children’s self-concept. The results showed a decrease in the academic achievement and academi…
"Muutin koko elämäni suuntaa" : Helsingin Sanomain Säätiön stipendiohjelman vaikutus toimittajan urapolkuun
2015
Visual cues improve students’ understanding of divergence and curl: Evidence from eye movements during reading and problem solving
2019
The coordination of multiple external representations is important for learning, but yet a difficult task for students, requiring instructional support. The subject in this study covers a typical relation in physics between abstract mathematical equations (definitions of divergence and curl) and a visual representation (vector field plot). To support the connection across both representations, two instructions with written explanations, equations, and visual representations (differing only in the presence of visual cues) were designed and their impact on students’ performance was tested. We captured students’ eye movements while they processed the written instruction and solved subsequent c…
Encoding specificity instead of online integration of real-world spatial regularities for objects in working memory
2022
Most objects show high degrees of spatial regularity (e.g. beach umbrellas appear above, not under, beach chairs). The spatial regularities of real-world objects benefit visual working memory (VWM), but the mechanisms behind this spatial regularity effect remain unclear. The "encoding specificity" hypothesis suggests that spatial regularity will enhance the visual encoding process but will not facilitate the integration of information online during VWM maintenance. The "perception-alike" hypothesis suggests that spatial regularity will function in both visual encoding and online integration during VWM maintenance. We investigated whether VWM integrates sequentially presented real-world obje…
Simultaneous polarization attraction and Raman amplification of a light beam in optical fibers
2012
International audience; In this paper, we demonstrate that it is possible to combine both Raman amplification and polarization attraction of a signal wave in a single optical fiber by means of a counterpropagating scheme. Experiments were performed near 1550 nm in a continuous wave regime and by means of a 10 Gbit ∕ s return-to-zero signal injected in a 20 kmlong low polarization mode dispersion optical fiber. Complete repolarization and 6.7 dB amplification of the signal wave was achieved by injecting a 850 mW, 1480 nm counterpropagating polarized pump wave.