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Sökning: hsv:(SAMHÄLLSVETENSKAP) hsv:(Annan samhällsvetenskap) hsv:(Tvärvetenskapliga studier) > Johansson Thomas B

  • Resultat 1-10 av 44
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  • Grubler, Arnulf, et al. (författare)
  • Energy Primer
  • 2012
  • Ingår i: Global Energy Assessment - Toward a Sustainable Future. - Cambridge University Press. - 9781-10700-5198 ; s. 99-150
  • Bokkapitel (refereegranskat)
  • Akselsson, Roland, et al. (författare)
  • Elemental Abundance Variation with Particle Size in Aerosols from Welding Operations
  • 1974
  • Ingår i: Proceedings of the Second International Conference on Nuclear Methods in Environmental Research. ; s. 395-401
  • Konferensbidrag (refereegranskat)abstract
    • The effect of airborne particulate matter on human health is today of considerable research interest. Essential parameters include elemental composition sampling with low pressure cascade impactors and analysis by particle induced x-ray emission spectroscopy (PIXE). It is shown that the aerosol generated by arc welding operations is several orders of magnitude denser than aerosols in ambient air. Most of the mass is found on particles between 0.1 and 1µm diameter, but the size distribution differs from one welding technique to another. The relative composition of the aerosol is found to differ significantly from that of both the welding piece and the electrode indicating the presence of fractionation of the type indicated in this work in designing electrodes and welding pieces to minimize the health hazards associated with the welding.
  • Cherp, Aleh, et al. (författare)
  • Energy and security
  • 2012
  • Ingår i: Global Energy Assessment: Toward a Sustainable Future. - Cambridge University Press. - 978110700 5198 ; s. 325-383
  • Bokkapitel (populärvet., debatt m.m.)
  • Farinelli, Ugo, et al. (författare)
  • "White and Green": Comparison of market-based instruments to promote energy efficiency
  • 2005
  • Ingår i: Journal of Cleaner Production. - Elsevier. - 0959-6526. ; 13:10-11, s. 1015-1026
  • Tidskriftsartikel (refereegranskat)abstract
    • The "White and Green'' project completed under the EU SAVE Programme reviewed policies and measures to promote energy efficiency, which involved analysing the experience with instruments that are already implemented, and assessing innovative instruments that are proposed. In particular, the practicability of using ''White Certificates" energy efficiency) along the same lines as "Green Certificates" (renewable energy) was explored. Several of the policies. and measures, were simulated using technical-economic model of the MARKAL family. The results show that by 2020 it is possible to increase energy effiency by 15% at no cost without taking externalities into account. If externalities are considered, an increase of 30-35% with respect to the business-as-usual scenario is justified. The wealth of information obtained through the models and analysis provides a set of recommendations for policy-makers including: (1) the need for closer co-ordination between energy policies and environmental and climate policies; (2) the opportunity to establish more ambitious targets for energy efficiency; (3) the scope for increased EU co-ordination; (4) the extension of White Certificates to the medium and low energy-intensive industries; (5) the need to support White Certificates with accompanying actions, such as running information campaigns, promoting energy service companies, and, providing dedicated credit lines; (6) the need to develop similar instruments for transport and(7) the continuing need for energy research and development. (c) 2005 Published by Elsevier Ltd.
  • Farinelli, Ugo, et al. (författare)
  • "White and Green": Conclusions and Recommendations
  • 2005
  • Rapport (övrigt vetenskapligt)abstract
    • The move towards the liberalisation of the energy markets in the whole world and the general shift from command-and-control to market mechanisms bring forward new ways of stimulating initiatives to increase the efficiency in the final uses of energy and demand-side management. In the past, energy policies were implemented in most countries by direct action of the governments through state monopolies, prescriptive legislation and in some cases incentives. With the progressive advent of liberalisation of the energy market and privatisation of state companies, the emphasis has shifted toward a regulation of the market that introduces economic corrections to take into account collective interests (such as externalities) and long-term objectives, which generally are not taken into due account by market forces in the absence of corrective measures. Policies based on incentives have also shown their limits. As they rarely use market forces effectively, the results obtained tend to have a higher cost than necessary and they may bring to a non-optimal development of new technology. Recently, the emergence of other problems - as shown by the power crisis in Sweden, the insufficient assurance given by the system to security of supply, some concerns about the quality of the service - have prompted a reconsideration of the regulation of the energy market. In this context, it is important to consider the ways in which the increase of the share of energy supplied by renewable sources and the increase in the efficiency of energy utilisation can be promoted. These two measures are considered the mainframe of any sustainable energy strategy and necessary steps to contrast the threats of climate change.
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