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31.
  • Andreasson, Ida, et al. (författare)
  • Åtgärdsprogram för miljömålen i Kronobergs län 2014-2020 : Hälsa i miljöarbetet, det hållbara landskapet,klimat och energi
  • 2014
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • FÖRORDÅtgärder för ett grönare KronobergGrunden för ett effektivt miljöarbete är de miljömål som vi gemensamt tagit fram. De visar den kvalitet vår miljö behöver, för att säkerställa att kommande generationer har lika goda eller bättre förutsättningar att fylla sina behov som vi som lever nu. Något som är lika viktigt är att vidta åtgärder för att nå upp till de miljömål vi gemensamt tagit fram. Mycket bra miljöarbete pågår i länet, vilket också har gett effekter på flera håll. Sammantaget visar dock de bedömningar som görs varje år, att även om arbetet går framåt, kommer det att krävas stora insatser för att nå våra miljömål till 2020. Det är av denna anledning som Länsstyrelsen har tagit fram detta åtgärdsprogram. I detta dokument lyfts ett urval av åtgärder som tillsammans bidrar till ett grönare Kronoberg. Det är både stora och små åtgärder, men vi är många som delar ansvaret för att genomföra dem. Vi bidrar alla på olika sätt till negativ miljöpåverkan och har därför ett ansvar för att vidta åtgärder. Om vi ska nå miljömålen krävs engagemang på alla nivåer. Flera av er har visat stort engagemang under arbetets gång och bidragit till de åtgärder som föreslås i detta program. Vår förhoppning är att Åtgärdsprogram för miljömålen i Kronobergs län ska stödja och stimulera näringsliv, kommuner, myndigheter, organisationer och föreningar att utveckla arbetet för en bättre miljö i länet. Stort tack till alla som redan deltar, och vill fortsätta resan mot ett grönare Kronoberg!Kristina Alsér, landshövding i Kronobergs län (2014)
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32.
  • Andreev, N. E., et al. (författare)
  • Analysis of laser wakefield dynamics in capillary tubes
  • 2010
  • Ingår i: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 12
  • Tidskriftsartikel (refereegranskat)abstract
    • A general approach to the modifications of the spectrum of a laser pulse interacting with matter is elaborated and used for spectral diagnostics of laser wakefield generation in guiding structures. Analytical predictions of the laser frequency red shift due to the wakefield excited in a capillary waveguide are confirmed by self-consistent modeling results. The role of ionization blue shift, and nonlinear laser pulse and wakefield dynamics on the spectrum modification, is analyzed for recent experiments on plasma wave excitation by an intense laser pulse guided in hydrogen-filled glass capillary tubes up to 8 cm long. The dependence of the spectral frequency shift, measured as a function of filling pressure, capillary tube length and incident laser energy, is in excellent agreement with the simulation results, and the associated longitudinal accelerating field is in the range 1-10 GV m(-1).
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33.
  • Aronsson, Julia, et al. (författare)
  • Tearing of post-consumer cotton T-shirts and jeans of varying degree of wear
  • 2020
  • Ingår i: Journal of Engineered Fibers and Fabrics. - : Sage Publications. - 1558-9250. ; 15, s. 1-9
  • Tidskriftsartikel (refereegranskat)abstract
    • The demand for textile fibres is growing quickly. However, global cotton production has stabilized around 25 Mton/year. This is a sound development since cotton cultivation causes major sustainable development issues. Even if regenerated cellulose fibre production steadily grows, it is still only from a sixth to a fifth of cotton volumes. Hence, it is essential to find resource-efficient routes to generate alternatives to virgin cotton. There are many promising research initiatives that discover the possibility to utilize waste streams of neat cotton and cotton in fibre blends as raw materials for dissolving pulp for regeneration into, for example, viscose or Lyocell. However, there is a much simpler and energy-efficient route at hand. If fabrics are disintegrated mechanically, the separated fibres can be turned into yarn again. However, since fibre length is a key parameter to accomplish strong and durable textiles, fibre length loss upon tearing should be minimized. This study evaluates how fibre length distribution alters upon tearing of post-consumer cotton waste of two different constructions: denim and single jersey; and different degrees of wear, rendering four different fractions: (1) barely worn denim, (2) rather worn denim, (3) barely worn single-jersey and (4) rather worn single-jersey. Before tearing, the garments were dissembled, their yarns were characterized, fibre length distributions were manually determined for (1)–(4). Length analysis of the recovered fibres after tearing revealed that the length drop was most severe for (a) the finer single-jersey and (b) the barely worn fractions. The findings suggest that significant wear does not exclude from mechanical recycling.
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34.
  • Arvidson, Markus (författare)
  • Den fabricerande människan : Om bedrägeri som vardaglig interaktionsform
  • 2007
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The present dissertation takes the multi-faceted phenomenon of deception as its point of departure. The aim is to make a case for deception as a social phenomenon, and to frame theoretically and define the skills and abilities that make deception possible.A theoretical model based on a number of ideal types is constructed. The purpose of the model is to differentiate particular aspects of deception, and the model is illustrated with examples of actions of more or less well-known impostors. The examples were collected from a variety of sources, such as autobiographies and television programs.As a first step, the legal definition of deception, i.e. fraud, and statistics on crimes of deception in Sweden are presented. Different theoretical approaches are also discussed; deception as a personality trait, and deception as communication and interaction.In order to illuminate the social dimensions, it is emphasized that deception constitutes a particular type of relationship between deceiver and deceivee. This particular form of interaction exploits elementary forms, and it is also asymmetrical in terms of the intentions of the parties involved.The concept of social competence is used to describe the skills and abilities required for successful acts of deception. It is argued that the social competence of deceivers consists of three types: strategic, normative, and dramaturgic competencies. The strategic competency involves being goal-rational and strategic, for example, the ability to predict the actions of the potential addressee. In the normative competency, norms and reference to norms are used strategically. The dramaturgic competency represents an operationalization and enactment of the two other competencies, and resembles the preparation and performance of an actor.The different contexts in which deception can occur are also discussed. A preliminary typology is presented, with the aim of demonstrating the difficulties in drawing clear lines between various types of deception. The extended approach to deception also means that it can be viewed as a part of everyday social interaction.Finally, some thoughts on deception in the light of societal changes are presented. It is argued that the increasing demands on people to promote themselves in various ways in today’s society can be perceived as an invitation to deception and fabrication. These demands can generate feelings of inferiority and a fear of eventually being unmasked as an impostor, or a phony.
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35.
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36.
  • Aurand, Bastian, et al. (författare)
  • A setup for studies of laser-driven proton acceleration at the Lund Laser Centre
  • 2015
  • Ingår i: Laser and Particle Beams. - 0263-0346. ; 33:1, s. 59-64
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on a setup for the investigation of proton acceleration in the regime of target normal sheath acceleration. The main interest here is to focus on stable laser beam parameters as well as a reliable target setup and diagnostics in order to do extensive and systematic studies on the acceleration mechanism. A motorized target alignment system in combination with large target mounts allows for up to 340 shots with high repetition rate without breaking the vacuum. This performance is used to conduct experiments with a split mirror setup exploring the effect of spatial and temporal separation between the pulses on the acceleration mechanism and on the resulting proton beam.
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37.
  • Axelsson, Emil, 1978, et al. (författare)
  • Feldspar: A Domain Specific Language for Digital Signal Processing algorithms
  • 2010
  • Ingår i: Eighth ACM/IEEE International Conference on Formal Methods and Models for Codesign. - 9781424478859 ; , s. 169-178
  • Konferensbidrag (refereegranskat)abstract
    • A new language, Feldspar, is presented, enabling high-level and platform-independent description of digital signal processing (DSP) algorithms. Feldspar is a pure functional language embedded in Haskell. It offers a high-level dataflow style of programming, as well as a more mathematical style based on vector indices. The key to generating efficient code from such descriptions is a high-level optimization technique called vector fusion. Feldspar is based on a low-level, functional core language which has a relatively small semantic gap to machine-oriented languages like C. The core language serves as the interface to the back-end code generator, which produces C. For very small examples, the generated code performs comparably to hand-written C code when run on a DSP target. While initial results are promising, to achieve good performance on larger examples, issues related to memory access patterns and array copying will have to be addressed.
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38.
  • Axelsson, Emil, 1978, et al. (författare)
  • The Design and Implementation of Feldspar: An Embedded Language for Digital Signal Processing
  • 2011
  • Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 9783642242755 ; 6647, s. 121-136
  • Konferensbidrag (refereegranskat)abstract
    • Feldspar is a domain specific language, embedded in Haskell, for programming digital signal processing algorithms. The final aim of a Feldspar program is to generate low level code with good performance. Still, we chose to provide the user with a purely functional DSL. The language is implemented as a minimal, deeply embedded core language, with shallow extensions built upon it. This paper presents full details of the essential parts of the implementation. Our initial conclusion is that this approach works well in our domain, although much work remains.
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39.
  • Axelsson, Emil, 1978, et al. (författare)
  • The Design and Implementation of Feldspar: an Embedded Language for Digital Signal Processing
  • 2010
  • Ingår i: IFL 2010, the 22nd Symposium on Implementation and Application of Functional Languages.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Feldspar is a Domain Specific Language, embedded in Haskell, for programming Digital Signal Processing algorithms. The final aim of a Feldspar program is to generate low level code with good performance. Still, we chose to provide the user with a purely functional DSL. The language is implemented as a minimal, deeply embedded core language, with shallow extensions built upon it. This paper presents full details of the essential parts of the implementation. Our initial conclusion is that this approach works well in our domain, although much work remains.
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40.
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