| 1. |
- Adman, Per, et al.
(författare)
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171 forskare: ”Vi vuxna bör också klimatprotestera”
- 2019
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Ingår i: Dagens nyheter (DN debatt). - Stockholm. - 1101-2447.
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- DN DEBATT 26/9. Vuxna bör följa uppmaningen från ungdomarna i Fridays for future-rörelsen och protestera eftersom det politiska ledarskapet är otillräckligt. Omfattande och långvariga påtryckningar från hela samhället behövs för att få de politiskt ansvariga att utöva det ledarskap som klimatkrisen kräver, skriver 171 forskare i samhällsvetenskap och humaniora.
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| 2. |
- Edelvik, Fredrik, 1972, et al.
(författare)
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Math-Based Algorithms and Software for Virtual Product Realization Implemented in Automotive Paint Shops
- 2017
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Ingår i: Math for the Digital Factory. - 2198-3283. ; 27, s. 231-251
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Tidskriftsartikel (refereegranskat)abstract
- We present a simulation framework that makes it possible to accurately simulate spray painting of e.g. a truck cab in only a few hours on a standard computer. This is an extreme improvement compared to earlier approaches that require weeks of simulation time. Unique algorithms for coupled simulations of air flows, electrostatic fields and charged paint particles make this possible. In addition, we demonstrate that the same framework can be used to efficiently simulate the laydown of sealing or adhesive material. In the virtual paint factory the production preparation process can be performed in the computer, which allows the engineers to replace physical prototypes with virtual ones to shorten the lead time in product development, and avoid future unforeseen technological and environmental problems that can be extremely costly if they are discovered at the end of the production line, or even worse by the costumer.
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| 3. |
- Büker, P, et al.
(författare)
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New flux based doseeresponse relationships for ozone for European forest tree species
- 2015
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Ingår i: Environmental Pollution. - : Elsevier BV. - 0269-7491. ; 206, s. 163-174
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Tidskriftsartikel (refereegranskat)abstract
- To derive O3 doseeresponse relationships (DRR) for five European forest trees species and broadleaf deciduous and needleleaf tree plant functional types (PFTs), phytotoxic O3 doses (PODy) were related to biomass reductions. PODy was calculated using a stomatal flux model with a range of cut-off thresholds (y) indicative of varying detoxification capacities. Linear regression analysis showed that DRR for PFT and individual tree species differed in their robustness. A simplified parameterisation of the flux model was tested and showed that for most non-Mediterranean tree species, this simplified model led to similarly robust DRR as compared to a species- and climate region-specific parameterisation. Experimentally induced soil water stress was not found to substantially reduce PODy, mainly due to the short duration of soil water stress periods. This study validates the stomatal O3 flux concept and represents a step forward in predicting O3 damage to forests in a spatially and temporally varying climate.
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| 4. |
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| 5. |
- Feng, Zhaozhong, et al.
(författare)
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A unifying explanation for variation in ozone sensitivity among woody plants
- 2018
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Ingår i: Global Change Biology. - : Wiley. - 1354-1013 .- 1365-2486. ; 24:1, s. 78-84
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Tidskriftsartikel (refereegranskat)abstract
- Tropospheric ozone is considered the most detrimental air pollutant for vegetation at the global scale, with negative consequences for both provisioning and climate regulating ecosystem services. In spite of recent developments in ozone exposure metrics, from a concentration-based to a more physiologically relevant stomatal flux-based index, large-scale ozone risk assessment is still complicated by a large and unexplained variation in ozone sensitivity among tree species. Here, we explored whether the variation in ozone sensitivity among woody species can be linked to interspecific variation in leaf morphology. We found that ozone tolerance at the leaf level was closely linked to leaf dry mass per unit leaf area (LMA) and that whole-tree biomass reductions were more strongly related to stomatal flux per unit leaf mass (r 2 =0.56) than to stomatal flux per unit leaf area (r 2 =0.42). Furthermore, the interspecific variation in slopes of ozone flux–response relationships was considerably lower when expressed on a leaf mass basis (coefficient of variation, CV=36%) than when expressed on a leaf area basis (CV=66%), and relationships for broadleaf and needle-leaf species converged when using the mass-based index. These results show that much of the variation in ozone sensitivity among woody plants can be explained by interspecific variation in LMA and that large-scale ozone impact assessment could be greatly improved by considering this well-known and easily measured leaf trait.
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| 6. |
- Friberg-Fernros, Henrik, 1972, et al.
(författare)
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Assessing the Epistemic Quality of Democratic Decision-Making in Terms of Adequate Support for Conclusions
- 2017
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Ingår i: Social Epistemology. - : Informa UK Limited. - 0269-1728 .- 1464-5297. ; 31:3, s. 251-265
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Tidskriftsartikel (refereegranskat)abstract
- How can we assess the epistemic quality of democratic decision-making? Sceptics doubt such assessments are possible, as they must rely on controversial substantive standards of truth and rightness. Challenging that scepticism, this paper suggests a procedure-independent standard for assessing the epistemic quality of democratic decision-making by evaluating whether it is adequately supported by reasons. Adequate support for conclusion is a necessary (but insufficient on its own) aspect of epistemic quality for any epistemic justification of democracy, though particularly relevant to theories that emphasise public deliberation. Finding existing methods for measuring the quality of public discourse to fall short, we draw on an epistemological theory of argumentation to provide a more sophisticated approach to evaluating the epistemic quality of democratic decision-making, illustrate how the approach can be used, and demonstrate its relevance for the epistemic turn in democratic theory.
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| 7. |
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| 8. |
- Karlsson, Johan, et al.
(författare)
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Material-flow analysis, energy analysis, and partial environmental-LCA of a district-heating combined heat and power plant in Sweden
- 2018
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Ingår i: Energy Journal. - : Elsevier. - 0195-6574 .- 1944-9089. ; 144, s. 31-40
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Tidskriftsartikel (refereegranskat)abstract
- Combined heat and power (CHP) plants are a great improvement over waste-to-energy incineration plants supplying only heat, and power plants supplying only electricity. The primary purpose of a functioning CHP plant however, may be to provide district heating services, and thereby its main output will be heat energy. This paper is a case study commissioned by Karlskoga Energi och Miljö AB (KEMAB in short; Karlskoga Energy and Environment) in the Värmland State of south-central Sweden, and focuses on the functioning of the CHP plant owned and operated by the company. The life-cycles of the fuels used by the CHP – household/industrial waste, bio-oil, light fuel oil, wood waste, wood chips, a slaughterhouse-waste-derived product and peat to generate 202,222 MWh of heat, 119,234 MWh of steam and 28,220 MWh of electricity have been studied, and the carbon footprint calculated for year-2016. Using two sets of emissions factors for the combustion stage of the life-cycle, as part of a data uncertainty analysis, the total emissions were 44,000 tonnes carbon dioxide equivalents (CO2-eq) and 58,000 tonnes CO2-eq respectively. A quasi-realistic scenario analysis in which plastics are not available for incineration and have to be substituted with alternatives has also been carried out, and while wood waste has been suggested as the best alternative with regard to greenhouse gas (GHG) emissions, availability permitting, a combination of alternatives has been mooted as the practical option.
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| 9. |
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| 10. |
- Karlsson, Michael, 1970-, et al.
(författare)
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OMNIBUS NEWS: Engagement or bussed?
- 2015
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Konferensbidrag (refereegranskat)abstract
- During the summer of 2013 the municipal public bus system, Karlstadbuss, installed television sets (BUSS-TV) on all city buses. These TV sets are airing user-generated content, and traffic information, weather forecasts as well as news from the hybrid commercial/public service broadcaster TV4. This paper addresses the phenomenon from the theoretical intersection of communication geography and journalism studies. This means understanding the city-buses, at once mobile and semi-public spaces, as decorated with a new “communicative texture” that is renegotiating the time-space nexus traditionally tied to news consumption. Furthermore, it potentially implies that a basic news diet become more or less dispersed amongst commuters across the city, and across previous class-demarcations that would engender divergent news diets. This constitutes a potential challenge to the notion of the fragmented news audience and related worries over the increased number of “news avoiders”. From previous research we know that news consumption, even accidental, is linked with political and civic engagement. In an era where media consumption is increasingly fragmented or even avoided, the buss-news reinstalls the almost inescapable news of the 1970’s albeit in a highly situated and limited context. Nevertheless, this new space of ‘news on the move’ is yet to be explored theoretically and empirically. Thus, we ask about the role of Karlstadbuss as a carrier of omnibus news in the media ecology. The paper uses data derived from representative surveys (Värmlands-SOM) conducted before (2010) and after (2014) the introduction of BUSS-TV to study the impact of travelling with the city-buses on political interest and civic engagement as well as general news interest and consumption.
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