| 1. |
- Bilato, R., et al.
(författare)
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ICRF-code benchmark activity in the framework of the European task-force on integrated Tokamak Modelling
- 2014
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Ingår i: AIP Conference Proceedings. - : American Institute of Physics. - 9780735412101 ; , s. 291-294
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Konferensbidrag (refereegranskat)abstract
- The grand aim of the Integrated Tokamak Modelling (ITM) task-force is to provide a flexible, modular and reliable plasma simulator in view of planning and analyzing ITER discharges. Since radio-frequency (rf) heating in the ion cyclotron range of frequencies (ICRF) is foreseen as one of the main additional heating systems in ITER, physics modules that simulate ICRF wave propagation and absorption are necessary for the ITM project. Here, we report on the status of the benchmark activity of ICRF codes, already imported in ITM environment platform. We consider various scenarios for ITER, limiting the comparisons to wave propagation and absorption in Maxwellian plasmas.
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| 2. |
- Pettersson, Hans, et al.
(författare)
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Risk of Hearing Loss Among Workers with Vibration-Induced White Fingers
- 2014
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Ingår i: American Journal of Industrial Medicine. - : Wiley. - 0271-3586 .- 1097-0274. ; 57:12, s. 1311-1318
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundWe examined the risk of hearing loss for workers who use hand-held vibrating tools with vibration-induced white fingers (VWF) compared to workers without VWF. MethodsData on 184 participants from a 21-year cohort were gathered with questionnaires and measurements. The effects on hearing status of VWF, hand-arm vibration exposure, smoking habits, age and two-way interactions of these independent variables were examined with binary logistic regression. Analyses were made for the right hand and ear as well as for the hand with VWF and the ear with worse categorized hearing status. ResultsWorkers with VWF in their right hand had an increased risk of hearing loss (odds ratio 2.2-2.3) in the right ear. Workers with VWF in any hand did not have any increased risk of hearing loss in the ear with worse hearing status. ConclusionsThis study supports the hypothesis that VWF increases the risk of hearing loss among workers who use hand-held vibrating tools in a noisy environment. Am. J. Ind. Med. 57:1311-1318, 2014. (c) 2014 Wiley Periodicals, Inc.
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| 3. |
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| 4. |
- Xing, Xing, et al.
(författare)
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The trade-off between electrochromic stability and contrast of a thiophene-Quinoxaline copolymer
- 2017
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Ingår i: Electrochimica Acta. - : Elsevier BV. - 0013-4686 .- 1873-3859. ; 253, s. 530-535
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Tidskriftsartikel (refereegranskat)abstract
- The stability of organic electrochromic devices is a crucial issue for their applications. However, until now the degradation mechanism of electrochromic materials are still not fully understood especially for electrochromic conjugated polymers (ECPs). To improve device stability, intensive investigation on the degradation mechanism of ECPs is urgently needed. Here we report our study on the electrochromic degradation in a thiophene-quinoxaline copolymer: poly [2,3-bis-(3-octyloxyphenyl) quinoxaline-5,8diyl- alt-thiophene-2,5-diyl] (TQ1). The results of X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectra (UPS) and UV-vis transmission spectra reveal that there are three main factors during the electrochromic degradation of TQ1. The first one is anion (ClO4-) irreversibly deep trapped, while the second is peroxidation of the thiophene group in TQ1. Both factors reduce the conductivity and electrochromism of TQ1. The third is structural relaxation resulting lager conjugated system of TQ1 molecules in film, which is gradually developed during 400 cycling of CV at a narrow potential range (01 V). When a potential range 0-0.7 V is applied, all three factors are prohibited, no electrochromism degradation is observed anymore, although the contrast becomes smaller. Our investigation systematically discloses the degradation mechanism during the electrochemistry processing of a ECP (TQ1), demonstrating the significance of trade-off between the electrochromic stability and contrast of the ECP.
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| 5. |
- Asplund, Sara, 1976, et al.
(författare)
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Learning aspects and potential pitfalls regarding detection of pulmonary nodules in chest tomosynthesis and proposed related quality criteria.
- 2011
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Ingår i: Acta radiologica. - : SAGE Publications. - 1600-0455 .- 0284-1851. ; 52:5, s. 503-512
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Tidskriftsartikel (refereegranskat)abstract
- Background In chest tomosynthesis, low-dose projections collected over a limited angular range are used for reconstruction of an arbitrary number of section images of the chest, resulting in a moderately increased radiation dose compared to chest radiography. Purpose To investigate the effects of learning with feedback on the detection of pulmonary nodules for observers with varying experience of chest tomosynthesis, to identify pitfalls regarding detection of pulmonary nodules, and present suggestions for how to avoid them, and to adapt the European quality criteria for chest radiography and computed tomography (CT) to chest tomosynthesis. Material and Methods Six observers analyzed tomosynthesis cases for presence of nodules in a jackknife alternative free-response receiver-operating characteristics (JAFROC) study. CT was used as reference. The same tomosynthesis cases were analyzed before and after learning with feedback, which included a collective learning session. The difference in performance between the two readings was calculated using the JAFROC figure of merit as principal measure of detectability. Results Significant improvement in performance after learning with feedback was found only for observers inexperienced in tomosynthesis. At the collective learning session, localization of pleural and subpleural nodules or structures was identified as the main difficulty in analyzing tomosynthesis images. Conclusion The results indicate that inexperienced observers can reach a high level of performance regarding nodule detection in tomosynthesis after learning with feedback and that the main problem with chest tomosynthesis is related to the limited depth resolution.
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| 6. |
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| 7. |
- Bresin, Roberto
(författare)
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Real-time visualization of musical expression
- 2004
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Ingår i: Proceedings of Network of Excellence HUMAINE Workshop "From Signals to Signs of Emotion and Vice Versa". ; , s. 19-23
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Konferensbidrag (refereegranskat)abstract
- A system for real-time feedback of expressive music performance is presented.The feedback is provided by using a graphical interface where acoustic cues arepresented in an intuitive fashion. The graphical interface presents on the computerscreen a three-dimensional object with continuously changing shape, size,position, and colour. Some of the acoustic cues were associated with the shape ofthe object, others with its position. For instance, articulation was associated withshape, staccato corresponded to an angular shape and legato to a rounded shape.The emotional expression resulting from the combination of cues was mapped interms of the colour of the object (e.g., sadness/blue). To determine which colourswere most suitable for respective emotion, a test was run. Subjects rated how welleach of 8 colours corresponds to each of 12 music performances expressingdifferent emotions.
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| 8. |
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| 9. |
- Combe, Malcolm, et al.
(författare)
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Land reform in Scotland : history, law and policy
- 2020
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Bok (refereegranskat)abstract
- A stimulating review of contemporary land reform in Scotland- Offers a holistic approach to land reform in Scotland-Draws on case studies of land policies in the UK, mainland Europe and the USA to allow comparison and contextualisation of Scottish land reform with other models-Examines the significance of right to property on the land reform process, and looks at how it is now being used as an impetus for economic and social rights reformLand reform is as topical as ever in Scotland. Following the latest legislative development, the Land Reform (Scotland) Act 2016, there is a need for a comprehensive and comprehensible analysis of the history, developing framework and impact of Scottish land reform. Scholarly yet jargon-free, this landmark volume brings together leading researchers and commentators working in law, history and policy to analyse the past, present and future of Scottish land reform. It covers how Scotland’s land is regulated, used and managed; why and how this has come to pass; and makes some suggestions as to the future of land reform.
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