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  • 301.
    Jarnerö, Kirsi
    et al.
    SP Wood Technology, SP Technical Research Institute of Sweden.
    Bolmsvik, Åsa
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Olsson, Anders
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Brandt, Anders
    University of Southern Denmark, Denmark.
    Effect of flexible supports on vibration performance of timber floors2012In: Euronoise, Prague 2012, 10-13 June, 2012: Proceedings, European Acoustics Association (EAA), 2012, p. 214-219Conference paper (Refereed)
    Abstract [en]

    In residential multi-storey buildings of timber it is of great impor-tance to reduce the flanking transmission of noise. Some buildingsystemsdothisbyinstallingavibration-dampingelasticinterlayer,Sylomerror Sylodynr, in the junction between the support andthefloorstructure.Thisinterlayeralsoimprovesthefloorvibrationperformance by adding damping to the structure. In the presentwork the vibration performance of a floor with such interlayershas been investigated both in laboratory and field tests. A pre-fabricated timber floor element was tested in laboratory on rigidsupports and on supports with four different types of interlayers.Theresultsarecomparedwithin situtests on a copy of the samefloorelement.Theeffectonvibrationperformancei.e.frequencies,damping ratio and mode shapes is studied. A comparison of theinsitutestandthetestwithelasticinterlayerinlaboratoryshowsthatthe dampingin situis approximately three times higher than on asingle floor element in the lab. This indicates that the dampinginsituisaffectedbethesurroundingbuildingstructure.Theachieveddamping ratio ishighly dependent onthe mode shapes. Mode sha-pes that have high mode shape coefficients along the edges wherethe interlayer material is located, result in higher modal dampingratios. The impulse velocity response, that is used to evaluatethe vibration performance and rate experienced annoyance in thedesign of wooden joist floors, seems to be reduced when adding elastic layers at the supports.

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  • 302.
    Jarnerö, Kirsi
    et al.
    SP Technical research institute of Sweden.
    Brandt, Anders
    University of Southern Denmark, Denmark.
    Olsson, Anders
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    In situ testing of timber floor vibration properties2010In: Proceedings of the 11th World Conference on Timber Engineering / [ed] Ario Ceccotti, 2010Conference paper (Refereed)
    Abstract [en]

    In the present work the change in natural frequencies, damping and mode shapes of a prefabricated timber floor element have been investigated when it was integrated into a building structure. The timber floor element was first subjected to modal testing in laboratory with ungrounded and simply supported boundary conditions, and then in situ at different stages of building construction. The first five natural frequencies, damping ratios and mode shapes of the floor element and the entire floor were extracted and analysed. It may be concluded that the major change in natural frequencies occur as the floor element is coupled to the adjacent elements and when partitions are built in the studied room, the largest effect is on those modes of vibration that largely are constrained in their movement. The

    in situ conditions have a great influence on the damping, which probably depends on the damping characteristics of the supports, but also on the fact that the floor is integrated into the building and interacts with it. There is a slight increase of damping in the floor over the different construction stages and the damping values seem to decrease with ascending mode order. The relative change also seems to decrease with increasing number of storeys built.

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  • 303.
    Jarnerö, Kirsi
    et al.
    Technical Research Institute of Sweden, SP Trätek, Växjö, Sweden.
    Brandt, Anders
    University of Southern Denmark, Denmark.
    Olsson, Anders
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Vibration properties of a timber floor assessed in laboratory and during building construction2010In: Proceedings of INTER-NOISE: the 39th International Congress and Exposition on Noise Control Engineering, 2010Conference paper (Refereed)
    Abstract [en]

    In the present work the change in natural frequencies, damping and mode shapes of a prefabricated timber floor element have been investigated when it was integrated into a building structure. The timber floor element was first subjected to modal testing in laboratory with ungrounded and simply supported boundary conditions, and then in situ at different stages of building construction. The first five natural frequencies, damping ratios and mode shapes of the floor element and the entire floor were extracted and analysed. It may be concluded that the major change in natural frequencies occur as the floor element is coupled to the adjacent elements and when partitions are built in the studied room, the largest effect is on those modes of vibration that largely are constrained in their movement. The in situ conditions have a great influence on the damping, which depends on the damping characteristics of the supports, but also on the fact that the floor is integrated into the building and interacts with it. There is a slight increase of damping in the floor over the different construction stages and the damping values seem to decrease with ascending mode order.

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  • 304.
    Jennemyr, Jonas
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Tomasson, Malin
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    "Har jag verkligen valt rätt, det var bara killar": - en studie om elever som gjort ett könsotraditionellt gymnasieval2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 305.
    Jensen, Joergen L.
    et al.
    The University of Auckland.
    Girhammar, Ulf Arne
    Luleå Tekniska Universitet.
    Quenneville, Pierre
    The University of Auckland.
    Källsner, Bo
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Splitting of beams loaded perpendicular to grain by connections : simple fracture mechanics models2012In: World Conference on Timber Engineering (WCTE), Auckland, New Zealand, July 15-19, 2012 (WCTE): Final paper ; Timber Engineering Challenges and Solutions / [ed] Pierre Quenneville, 2012, p. 388-396Conference paper (Refereed)
    Abstract [en]

    The paper gives a state-of-the-art report on splitting of beams loaded perpendicular to grain by connections. Special emphasis is placed on simple analytical models based on fracture mechanics. A new simple model is presented, existing models are reviewed and relations between the models are shown, and an existing model is generalized in a semi-empirical manner. The treatment of the splitting problem in some timber design codes is also reviewed, new test results are presented, and the models and design codes are discussed.

  • 306.
    Jensen, Joergen L.
    et al.
    Univ. of Auckland, New Zealand.
    Jiaotong, Xi'an
    Källsner, Bo
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Quenneville, Pierre
    Univ. of Auckland, New Zealand.
    Girhammar, Ulf Arne
    Luleå Tekniska Universitet.
    Some comments on the Sugiyama opening coefficient method and lower-bound solutions for shear walls (Technical note)2012In: International Council for Research and Innovation in Building and Construction Working Comission W18 - Timber Structures, Ingenieurholzbau und Baukonstruktionen , 2012Conference paper (Refereed)
  • 307.
    Jensen, Joergen L.
    et al.
    The University of Auckland.
    Quenneville, Pierre
    The University of Auckland.
    Girhammar, Ulf Arne
    Luleå Tekniska Universitet.
    Källsner, Bo
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Beams loaded perpendicular to grain by connections: Combined effect of edge and end distance2012In: Proceedings of CIB-W18, 2012Conference paper (Refereed)
  • 308.
    Jensen, Joergen L.
    et al.
    The University of Auckland.
    Quenneville, Pierre
    The University of Auckland.
    Girhammar, Ulf Arne
    Luleå Tekniska Universitet.
    Källsner, Bo
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Splitting of timber beams loaded perpendicular to grain by connections: Combined effect of edge and end distance2012In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 35, p. 289-293Article in journal (Refereed)
    Abstract [en]

    The paper presents experimental results of tests on splitting of laminated veneer lumber beams subjected to loading perpendicular to grain by single bolts with small edge and end distances. Two different edge distances were used, and a total of eight different combinations of edge and end distances were tested. Material properties such as perpendicular-to-grain tensile strength and mode I fracture energy of the tested beams were also determined by testing. The experimental results are compared with a simple analytical model based on quasi-nonlinear fracture mechanics, which takes into account the effect of the edge distance as well as the end distance. A generalized model is proposed, which applies to small and large edge distances and to small and large end distances, and which contains as a special case the linear elastic fracture mechanics model, which is currently used as the basis for calculation of the splitting capacity in the Europeans and Canadian timber design codes.

  • 309.
    Jensen, Marie
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Implementering av byggnadsinformationsmodellering i byggproduktionen2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    De större företagen i Sverige använder alltmer byggnadsinformationsmodellering (BIM) i sina byggprojekt. Examensarbetets syfte är att kartlägga i vilken utsträckning BIM påverkar effektiviteten i produktionsfasen på två byggarbetsplatser, Fortnox Arena och Myresjöhus Arena, båda i Växjö. Rapporten belyser BIM, med dess möjligheter respektive svårigheter samt hur det kan användas i produktionsskedet. Utgångspunkten för analysen är intervjuer av olika entreprenörer som medverkade i något av de två nämnda byggprojekten. Intervjuerna visade att BIM tillämpas till viss del på arbetsplatsen och BIM anses bidra till tidsbesparing i projekten. Med hjälp av intervjuerna och teori har analys och diskussion förts kring hur BIM kan användas i produktionen i större utsträckning för att uppnå en ökad effektivitet.

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  • 310.
    Joelsson, Jonas
    et al.
    Mittuniversitetet.
    Gustavsson, Leif
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Reductions in greenhouse gas emissions and oil use by DME (di-methyl ether) and FT Fischer-Tropsch) diesel production in chemical pulp mills2012In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 39, no 1, p. 363-374Article in journal (Refereed)
    Abstract [en]

    Using energy systems analysis, we examine the potential to reduce CO2 emissions and oil use by integrating motor biofuel production with pulp mills. BLG-DME (black liquor gasification with di-methyl ether production) is compared with solid biomass gasification with BIG-Fr (solid biomass gasification with Fischer-Tropsch fuel production). The studied systems are expanded with stand-alone production of biomass-based electricity and motor fuel so that they yield the same functional unit in terms of motor fuel and electricity as well as pulp or paper product, in order to facilitate comparison. More motor biofuel can be produced in integration with the studied mills with BLG-DME than with BIG-FT because the black liquor flow is large compared with other fuel streams in the mill and the integration potential for BIG-FT is limited by the mill's heat demand. When both systems are required to produce the same functional unit, the BLG-DME system achieves higher system efficiency and larger reductions in CO2 emissions and oil use per unit of biomass consumed. In general, integration of motor biofuel production with a pulp mill is more efficient than stand-alone motor biofuel production. Larger reductions in CO2 emissions or oil use can, however, be achieved if biomass replaces coal or oil in stationary applications.

  • 311.
    Joelsson, Jonas
    et al.
    Mittuniversitetet.
    Gustavsson, Leif
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Swedish biomass strategies to reduce CO2 emission and oil use in an EU context2012In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 43, no 1, p. 448-468Article in journal (Refereed)
    Abstract [en]

    Swedish energy strategies for transportation, space heating and pulp industries were evaluated with a focus on bioenergy use. The aims were to 1) study trade-offs between reductions in CO2 emission and oil use and between Swedish reductions and EU reductions, 2) compare the potential contributions of individual reduction measures, 3) quantify the total CO2 emission and oil use reduction potentials. Swedish energy efficiency measures reduced EU CO2 emission by 45-59 Mt CO2/a, at current biomass use and constant oil use. Doubling Swedish bioenergy use yielded an additional 40 Mt CO2/a reduction. Oil use could be reduced, but 36-81 kt of reductions in CO2 emission would be lost per Pi of oil use reduction. Swedish fossil fuel use within the studied sectors could be nearly eliminated. The expansion of district heating and cogeneration of heat with a high electricity yield were important measures. Plug-in hybrid electric cars reduced CO2 emission compared with conventional cars, and the difference was larger with increasing oil scarcity. The introduction of black liquor gasification in pulp mills also gave large CO2 emission reduction. Motor fuel from biomass was found to be a feasible option when coal is the marginal fuel for fossil motor fuel production. (C) 2012 Elsevier Ltd. All rights reserved.

  • 312.
    Johansson, Bengt
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Markberedning med traktorgrävare, prestation och kostnad2012Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    This study investigated the performance and cost of scarification with a tractormounted excavator. Due to variations in terrain conditions the performance variedbetween 0.08 and 0.11 ha/E15h and, with a machine cost of 366 SEK/h, the cost ofscarification varied between 3 330 and 4 750 SEK/ha.

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    Bengt Johansson examensarbete markberedning
  • 313.
    Johansson, Emil
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sundberg, Tony
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Införande av best practice2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Trelleborg Rubore AB utvecklar, tillverkar och säljer laminerade material för olika industriella applikationer, framförallt till bilindustrin.Examensarbetet är gjort i samarbete med Trelleborg Rubore AB där de vill göra förändringar på sin slittlina. Genom analys ska det ges möjlighet att förbättra ergonomin samt förbättra produktionen.Den långa ställtiden i jämförelse med körtiden samtidigt som nästan allt material går igenom lina 3 skapar ett problem för Rubore AB. Genom att analysera dagens läge och hitta de största problemen med lina 3 kan ett antal alternativ föras fram som ger svar på målet och syftet med arbetet.

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  • 314.
    Johansson, Fredrik
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Utveckling av undervisningsmaterial kring fordonselektroniska styrsystem: för fordonselever2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport handlar om utveckling av ett undervisningsmaterial för elever på fordonsprogrammet inom området elektroniska styrsystem. Rapporten beskriver processen från idé fram till färdigt undervisningsmaterial. Detta har tagits fram för att ge eleverna en bredare, mer generell kunskap inom detta ämnesområde än vad som är möjligt att få genom enbart teoretisk undervisning kring utvalda märkesspecifika system.  Undervisningsmaterialet bygger på teoretiska avsnitt som varvas med praktiska övningar kring en mikrokontroller med tillhörande sensorer och aktuatorer. Genom att skapa korta styrprogram som hanterar dessa sensorer kan olika funktioner skapas med hjälp av mikrokontrollen. Detta gör att många av de delfunktioner som används inom fordonselektroniska styrsystem kan simuleras.

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  • 315.
    Johansson, Ingvor
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Plantering av barrplantor på hösten: överlevnad och tillväxt2011Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This work has been performed in order to investigate if Norway spruce (Picea abies) and pine (Pinus sylvestris) container-grown seedlings planted in autumn gives the same quality as planting in spring in terms of surviving plants. This is in part to see if one can extend the planting season to get a more even workload over the season, both in nurseries and in the field. The study is designed as a survey study in Southern Sweden on container-grown seedlings of Norway spruce and pine planted 2007-2009 and inventoried 2010. The following things have been compared; plants per hectare, height growth, leading shoot growth, stem diameter, frost damage, damage by wild animals and pine weevil damage. Planting of Norway spruce (Picea abies) container-grown seedlings in autumn gives the same quality as planting in spring in terms of surviving plants. Height growth and diameter growth were slightly better the following season for seedlings planted in autumn compared to seedlings planted in spring. Seedlings planted in autumn were damaged by frost more than seedlings planted the spring, especially the first season. Seedlings planted in spring were slightly more damaged by wild animals than seedlings planted in autumn which may be because of less frost damage. Seedlings planted in spring were slightly a little more damaged by pine weevil than seedlings planted in autumn. Pine weevil damage was greatest in the arid soils in the eastern area. Container-grown seedlings of pine (Pinus sylvestris) planted in autumn gave equally good results as seedlings planted of Norway spruce.

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  • 316.
    Johansson, Jimmy
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Aspects on Automatic Grading of Wood for Improved Material Utilization in the Swedish Hardwood Sawmill Industry2011In: International Scientific Conference on Hardwood Processing, October 16-18, 2011 Virginia Tech, Blacksburg, VA, USA: Current Session II, 2011Conference paper (Refereed)
    Abstract [en]

    Historically, the selection of wood for manufacturing furniture and joinery has been made with great care. The basis has been the un-edged sawn and dried pieces of wood. Alternatively, selection has already been made in the forest. The trained eye and the skilful craftsmen have been crucial for the result. In today’s industrial processes, this methodology is hard to achieve with the non-homogeneous wooden material. This article explores developmental trends considering the work within the Swedish hardwood value chain. The aim of this manuscript is to discover how it is possible to utilize today’s available information technology, e.g. scanners in the industrial process, as a help to make more optimal use of the wooden raw material. Together with customers of a hardwood sawmill, a product was selected and followed backwards in the hardwood value chain. Crosscutting scanner data was collected based on wood origin with known log-quality. The length distribution of crosscut components was simulated based on different quality grading criteria. The results from the study may be used as a help in production planning, in the selling process, or as a tool in product development where raw material accessibility may be determined in relation to the product design.

  • 317.
    Johansson, Jimmy
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Förutsättningar för konkurrenskraftigt utnyttjande av svenskat lövtimmer i svenska lövsågverk2003Report (Other academic)
  • 318.
    Johansson, Jimmy
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Kvalitetsutveckling i svensk lövträindustri2011In: Ekbladet, ISSN 0283-4839, no 26, p. 24-28Article in journal (Other (popular science, discussion, etc.))
  • 319.
    Johansson, Jimmy
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Product differentiation in the Swedish hardwood sawmill industry2005Licentiate thesis, comprehensive summary (Other academic)
  • 320.
    Johansson, Jimmy
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Kifetew, Girma
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    CT-scanning and modelling of the capillary water uptake in aspen, oak and pine2010In: European Journal of Wood and Wood Products, ISSN 0018-3768, Vol. 68, no 1, p. 77-85Article in journal (Refereed)
  • 321.
    Johansson, Jimmy
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Salin, Jarl-Gunnar
    Application of percolation modelling on end-grain water absorption in aspen (Populus tremula L.)2011In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 6, no 3, p. 112-118Article in journal (Refereed)
  • 322.
    Johansson, Jimmy
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sandberg, Dick
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Automatic sorting of sawn birch: Defect detection possibilities on sawn and planed wood surfaces2010In: Hardwood research and utilisation in Europe: New Challanges / [ed] Robert Nemeth and Alfred Teischinger, Sopron: University of West Hungary Press , 2010, p. 206-213Conference paper (Refereed)
    Abstract [en]

    In the production of sawn hardwood a critical processing step is the quality grading. The grading has normally been handled manually in the hardwood sawmills. The process has been labour intensive and a problematic working environment. With the help from existing scanning technology it is possible to automate the process with several benefits as a result. These are e.g. a decreased need of labour, a better working environment and the possibility to use more complicated grading rules. Thereby the wood could be used in a more optimal way with both cost and environmental benefits.

    One problem when grading hardwood is that camera and laser based scanning technology has mainly been used on planed surfaces. Normally the quality grading in hardwood sawmills is performed before planing. The wood may then be cross-cutted to components before planing in order to minimise the volume losses because of deformations of the wood pieces.

    In order to investigate the possibilities to scan the sawn wood before planing rip-sawn birch boards (Betula pubescens Ehrh., Betula pendula Roth.) was scanned before and after planing the wood. The used scanner was a commercial system for automatic sorting of wood. Before the scanning it was estimated that the sawn surfaces exposed to the surrounding environment during drying would not generate any usable results from the scanning. Therefore only the two rip-sawn surfaces were used for evaluation before and after planing. The evaluation was made by comparing the results from the quality grading before and after the planing based on grading rules used by Swedish hardwood sawmill. The results show that there are possibilities to grade the birch wood before planing. The study, however, shows that the scanner has difficulties in detecting small colour variations as brown streaks and fresh knots. It is also difficult to detect fibre angle deviations because of loose fibres on the sawn surface. The possibilities to scan the birch wood are thereby related to the grading rules, i.e. if the mentioned quality parameters are allowed or not.

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  • 323.
    Johansson, Jimmy
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sandberg, Dick
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Improved use and production of hardwood with the PrimWood Method2010In: Broadleaved forests in southern Sweden: management for multiple goals / [ed] Magnus Löf , Jörg Brunet, Leif Mattsson och Mats Nylinder, Oxford: Wiley-Blackwell, 2010, Vol. 53, p. 51-59Chapter in book (Refereed)
  • 324.
    Johansson, Jimmy
    et al.
    Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
    Sandberg, Dick
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Ny träteknik höjer värdet på lövskogen2008In: Ekbladet, ISSN 0283-4839, no 23, p. 24-27Article in journal (Other academic)
    Abstract [sv]

    Lövträ är ett uppskattat material i möbler, snickerier och inredningar samtidigt som en stor del av det svenska lövträet av olika anledningar inte utnyttjas för dessa användningsområden. Endast ca. 5 % av den totala volymen lövträ som årligen avverkas blir sågat virke. Motsvarande siffra för furu och gran är 50 %. Istället importeras den största delen av råvaran, men bakom knuten väntar nya spännande nyheter, vilka är ett  resultat av forskningen vid Växjö universitets avdelning för Skog & Trä.

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  • 325.
    Johansson, Jimmy
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sandberg, Dick
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Volymutbyte vid tillverkning av kvistfria snickeriämnen och skivor med stående årsringar2005Report (Other academic)
    Abstract [en]

    This report describes a new production concept for manufacturing of high quality boards, components and panels from softwoods and hardwoods. The concept, named the PrimWood Method generates knot-free boards, components and panels with vertical annual rings. The cross sections of the boards are either rectangular or triangular, called Triangle and Rectangle. These two products are further processed to components and panels.

    The PrimWood Method increases the quality of the wood, compared to wood processed with traditional methods (harder surface, increased shape stability, freedom from cracks, easier and faster processing, less waste and a more even finishing). The wood is also given new aesthetical characteristics (e.g. even texture, knot-free surfaces and decorative finger-joints). The PrimWood Method also improves the raw material utilization, with resulting positive environmental effects, since a renewable resource is utilized more efficiently.

    The volume yield when manufacturing different products from the PrimWood Method has in this report been studied, both theoretical and experimental during industrial conditions. For pine (Pinus sylvéstris L.) the volume exchange in different processing stages may be summarized as follows:

    Sawing, from log to dried wood             56 %

    Knot-free boards from Rectangle           75 %

    Knot-free panels from Rectangle (Panel) 52 %

    Knot-free boards from Triangle (Rhomb) 73 %

    Knot-free panels from Triangle (Prism)   53 %

    The volume yield for boards and panels are determined from incoming volume sawn and dried Rectangle and Triangle. The quality and the geometrical form of the raw material are crucial for the obtained volume yield from the manufacturing process. The volume yields described above are to be seen as guiding values, when processing pine from Sweden.

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  • 326.
    Johansson, Jonas
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Wahlqvist, Kennet
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Murare ett framtidsyrke?: En studie av muraryrkets förändring och dess konsekvenser för murarutbildningen2011Independent thesis Advanced level (professional degree), 15 credits / 22,5 HE creditsStudent thesis
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  • 327.
    Johansson, Jörgen
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Anställningsbar efter Hotell & Restaurangprogrammet2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    What makes the students feel employable for Hotel & Restaurant program, and what the student thinks is most important to be employable? Survey has been conducted through interviews with students in grades three to upper secondary school Hotel & Restaurant Program. The respondents come from three different upper secondary schools in southeast Sweden and interviewed a few weeks before they finish their education. The students consider it important for employability is to be pleasant, sociable, flexible and adaptable. The question of what it is that makes students feel employable after three years in Hotel & Restaurant program, the majority of their great strength is that they are nice and social.

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    Anställningsbar efter Hotell & Restaurangprogrammet
  • 328.
    Johansson, Malin
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    A method on how to improve employee job satisfaction: A case study2010Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The value of specific individuals for the success of a company has increased drastically because of the increased demand on knowledge and service orientation, and job satisfaction has become more important in the competition of the most attractive employees. Improving job satisfaction also brings along additional advantages. For example, it has been proven to have a direct impact on customer satisfaction. This study aims at providing a working procedure for organizations that wish to increase the level of employee job satisfaction, and a method has been developed that gives practical instructions on how to organize the improvement work. To evaluate the current level of job satisfaction in order to find improvement areas, the most important determinants to job satisfaction have been identified through a literature survey. The method has four phases, Prepare, Investigate, Design and Implement, and is shaped as a closed loop to symbolize the need of continuous improvements. To validate the usefulness and precision of the method, it has been tested in a single case study. The case study showed that the method is applicable in the sense that all four phases were possible to carry out, and that it is capable of providing a practical working procedure to increase job satisfaction. It is also useful when it comes to evaluating already existing working procedures. Most important when it comes to increasing job satisfaction is to let the employees actively participate in the improvement work. This will ensure that the solutions suggested are relevant and enduring, and it will make employees feel acknowledged and motivated to follow out the changes.

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  • 329.
    Johansson, Marie
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Olsson, Anders
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Grading of sawn timber with dynamic methods – influence of defect2010In: WCTE 2010 – The 11th World Conference on Timber Engineering, Riva del Garda, Italy, 20-24 June, 2010Conference paper (Refereed)
  • 330.
    Johansson, Marie
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sjödin, Johan
    A general FE-model to predict capacity of a steel-timber dowel joint with complex loading2010In: WCTE 2010 – The 11th World Conference on Timber Engineering, Riva del Garda, Italy, 20-24 June, 2010Conference paper (Refereed)
  • 331.
    Johansson, Martin
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Eidevåg, Johan
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Driftoptimering av flerbostadshus vid nyproduktion2011Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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  • 332.
    Johansson, Niklas
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Elmersson, John
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Energieffektivisering på Vetlandas Fjärrvärmeverk2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Vetlanda Energi och Teknik AB (Vetab) är ett aktiebolag som ligger i Vetlanda. Vetab har konstaterat förluster i sitt fjärrvärmesystem som består av 18 pannor varav 6 bioeldade med en rökgaskondensor på 2 av de bioeldade. Enligt mass- och energibalanser för år 2009 så uppger Vetab en skillnad på 5000ton mer bränsle för uträknad massa med energibalans (som grundar sig på en ansatt verkningsgrad för pannorna på 85%) än den uppvägda levererade massan.

    Bränslet vägs upp på en krönt fordonsvåg på Stickan samt volymuppskattas vid leverans och fördelas sedan ut till de olika värmeverken. En del av inköpt bränsle vägs även upp enbart med hjullastare och volymbestäms i skopan. Volymen som uppskattas används sedan till att bestämma värmevärdet per kubikmeter samt till att beräkna en bulkdensitet för det levererade bränslet. Eftersom volymen kan ha minskat upp till 20±10% då bränslet transporterats till Vetab bidrar det även till att bulkdensiteten samt värmevärdet blir osäkert.

    Vid bestämning av osäkerheten för fordonsvågen hamnar den på ca 0,2% och för hjullastarvågen på 0,7%. En del osäkerheter har observerats i Vetab’s statistikprogram där summeringar görs på alla månaderna stundtals, och ibland summeras värdena med hjälp av medelvärden på årsbasis.

    Metoden utgår från att följa systemets energiflöden, där fokus läggs på bestämning av bränslekvalité och osäkerhet för invägning. Eftersom en av tyngdpunkterna i arbetet handlar om Vetabs metodhantering kräver detta att metoden i rapporten håller en hög standard, vilket resulterar i att allt är kritiskt granskat. Undersökningarna har skett vid Linnéuniversitet på Växjö campus med befintliga laborationsinstrument. Värmevärdet är bestämt med hjälp av en IKA C200 bombkalorimetersystem.

    Lagring av bränslet vid Vetab kan ske upp till ca 6 månader vilket resulterar i energiförluster på upp till 24%. Enligt resultatet från bestämningen av värmevärdet så ligger det 7,6% lägre än Vetabs och hela 13% under medelriktvärdet för skogsflis. Aspen hade en förlust på ca 21% när man jämför Vetabs prover med proverna som är tagna på Stickan. Jämför man Vetabs prover med värmevärdet hamnade förlusterna på 9.4%. Vid bestämning av fukthalten hos skogsflis så blev den 24%, medan fukthalten låg på 52 % för aspflis. Askhalten ligger inom riktlinjerna som ligger mellan 0,4-5% för biobränslen.

    För att sammanfatta arbetet så bör Vetab kontrollera sina rutiner för att minska sina osäkerheter på samtliga anläggningar, där kalibrering av mätare rekommenderas. Man bör allid väga allt bränsle som köps/skickas till anläggningarna. En konsult bör konsulteras för att bestämma verkningsgraden på samtliga pannor men även för att ge en mer noggrann tillsyn av statistikprogrammet.

    Slutsatsen blev att samtliga osäkerheter bör ses över om kapital finns.

     

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  • 333.
    Johansson, Nils-Gunnar
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Helander, Björn
    Fordonselevers skolkunskap i relation till chaufförsyrket2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 334.
    Johansson, Rune
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Införande av GY2011 på ett yrkesprogram2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 335.
    Johansson, Simon
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Gälldin, Viktor
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Möjligheter med Byggnadsinformationsmodellering inom förvaltning2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Examensarbetet är en studie om möjligheter med Byggnadsinformationsmodellering (BIM) inom fastighetsförvaltning. Olika fastighetsförvaltare och mjukvarutillverkare presenteras och ger sin syn på BIM. Begreppet BIM förklaras och dessutom ges några exempel på hur mjukvaror hanterar BIM-modeller. Viktiga slutsatser från arbetet är att mjukvarorna behöver förändras och anpassas till de olika kategorier av förvaltare som är aktuella, det kommer också krävas utbildning och information till dessa. Anledningen till det är att kunskapen om BIM idag är låg bland de flesta förvaltare.

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  • 336.
    Johansson, Tomas
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Rosander, Jörgen
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Yrkesutbildningens förändring från 1960 till 2011 ur utbildningspolitiskt perspektiv2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    We conducted this study because a new school reform begins in 2011. Our study is in between 1960 - 2011. The survey methodology is the following; we use literature, previous studies and curricula. Rating has returned to a more equitable system. This means that the range has decreased in each grade level. Industry has been involved and affected programs and curricula. Short courses have disappeared and GY11kommer to tighten eligibility requirements. This places greater demands on schools and students. The new grading scale will be fairer to the students. The courses have been following the development of society. It is also true that businesses have had opportunities to customize programs for their purposes, so that they have professionals with the basic knowledge they need. The eligibility requirements have been more or less vague and changed over the years. Some reforms have been easier for weak students to get an education. But with 11 GY(the new reform) has requirements tightened. We have come back to a class society. With it, it will once again become segregation between classes. Both those of upper secondary education and in society. As it seems, it is important for each schools minister to get a new school easily confused reform. To raise the status of certain programs, increased and then decreased and then increased again with GY11.The grades have changed over the years, many are.

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  • 337.
    Johnsson, Annika
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Svenska miljömål på byggprogrammet?  - Ett sätt att integrera hållbar utveckling i karaktärsämnet2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim has been to examine whether the Swedish environmental objectives may be a way to make sustainable development visible for students on the construction program. It has also been to determine the added value that can be created by making sustainable development visible by integrating environmental objectives into the teaching. Interim objectives are realistic and directly linked to the construction sector, which can lead to an increased commitment and desire to con­tribute to change.

    The result shows that vocational teachers, students, and site managers in construction compa­nies were not aware of the environmental objectives. Swedish environmental objectives need to be integrated into vocational school subjects of the construction programme so that political decisions in order to achieve sustainable development is communicated to the students, so that they can come out in working life with action skills which can lead to changes. Almost all interviewed felt that it could provide added value to have knowledge of how they in their everyday lives can work with sustainable development. They think it is important to work with the issues and that it results in prosperous in daily life, which also is supported by the literature and described it in terms of professional pride.

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  • 338.
    Jokela, Päivi
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Computer Science, Physics and Mathematics.
    Grund, Lina
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sundberg, Peter
    Glasforskningsinstitutet.
    Color matching software for designers and glass industry: a unique tool used in glass art, design and conservation2011Conference paper (Refereed)
  • 339.
    Jonson, Susann
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Olsson, Elisabeth
    Linnaeus University, Faculty of Health, Social Work and Behavioural Sciences, School of Education, Psychology and Sport Science.
    "Det är de modiga eleverna som söker": Några lärares erfarenheter och tankar om lärlingsutbildning på Barn- och fritidsprogrammet i gymnasieskolan2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 340.
    Jonsson, Hans
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Ardelean, Sorin
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Förväntade datorkunskaper hos gymnasieelever på yrkesprogrammen2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 341.
    Junghard, Malin
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Välkommen hem!: - marknadsföring genom småhuskataloger under en femtioårsperiod, 1960-20102011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study is based on an interest to examine the changes and similarities in marketing in Swedish house catalogs between 1960-2010. Through a literature study and a detailed study of house catalogues during this fifty-year period, certain conclusions could be drawn. The results show both similarities and differences in the marketing. The main selling point during all decades proved to be trying to sell the family fortune in pictures and texts.

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  • 342.
    Jönsson, Pernilla
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Nutidens ventilationssystem i lantbrukets lösdriftstallar: En undersökning av sex stycken ventilationssystem2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den traditionella båsladugården har idag utvecklats till lösdriftstallar där korna har fri tillgång till foder och liggplatser. Korna mjölkas i antingen mjölkgrop, karusell eller av en robot. För att uppnå bra termisk komfort i lösdriftsstallen så använder man sig av naturlig eller mekanisk ventilation. I detta arbete så undersöks några olika ventilationssystem som använder sig av naturlig ventilation på fem utvalda kostall för att se hur de fungerar i praktiken. Detta görs med fukt- och temperaturmätare och med rökpatroner för att se hur luften rör sig i stallet. Resultatet analyseras för att se om det är något ventilationssystem som sticker ut jämför med de andra. Beskrivning kring hur man skulle kunna gå tillväga vid en vidare utveckling av detta arbete diskuteras.  

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    Nutidens ventilationssystem i lantbrukets lösdriftstallar
  • 343.
    Kans, Mirka
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Applying an innovative educational program for the education of today's engineers2012In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 364, article id 012113Article in journal (Refereed)
    Abstract [en]

    Engineers require a broad spectrum of knowledge and skills: basic skills in mathematics and physics, skills and competencies within the major subject area as well as more general knowledge about business and enterprise contexts, society regulations and understanding of the future professions' characteristics. In addition, social, intercultural, analytical and managing competencies are desired. The CDIO educational program was initiated as a means to come closer to practice and to assure the training of engineering skills that are required of today's engineers. CDIO is short for Conceive-Design-Implement-Operate and describes the full life cycle understanding of a system or asset that engineering students should reach during education. The CDIO initiative is formulated in a program consisting of two important documents: the CDIO standards and the CDIO syllabus. The standards describe a holistic approach on education, from knowledge and skills to be trained, how to train and assess them, to how to develop the teaching staff and the work places for enabling the goals. The specific knowledge and skills to be achieved are accounted for in the syllabus. In this paper we share our more than 15 years of experiences in problem and project based learning from the perspective of the CDIO standards. For each standard, examples of how to set up the education and overcome challenges connected to the standard are given. The paper concludes with recommendations to others wishing to work toward problem and real-life based education without compromising the requirements of a scientific approach.

  • 344.
    Kans, Mirka
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Impact of IT procurement on the quality of the maintenance process: results from a study in Swedish industry2012In: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 18, no 2, p. 196-215Article in journal (Refereed)
    Abstract [en]

    Purpose – IT investments in maintenance are of strategic importance, but it is hard to fit the IT systems to the business demands. One possible reason could be inadequate planning and execution of the procurement. The purpose of this paper is to investigate the IT procurement process within maintenance, and its impact on the quality of the maintenance process.

    Design/methodology/approach – The study is performed as a web-based questionnaire survey addressing maintenance managers in Swedish industry followed by five additional interviews.

    Findings – The decision to purchase IT is, to high extent, a maintenance internal matter and the purchases are often run in project form involving several working areas and the decision making is commonly based on the purchaser's own experience. The involvement of future users is frequent. Maintenance IT investments are seen as connected to real needs and beneficial for the maintenance.

    Practical implications – Highlighting the current practices within procurement helps practitioners to understand the process and thereby better prepare the purchasing of technology.

    Research limitations/implications – Systematic methods for the procurement of IT are used to a low extent, which implies a need for practical and easy tools within the area. In addition, the economic importance of IT investments should be further studied and tools for assessing the impact of the procurement should be developed.

    Originality/value – Papers dealing with maintenance IT procurement are scarce and do not cover the full procurement process, and no empirical studies within the area have been found.

  • 345.
    Kans, Mirka
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    IT Procurement within Maintenance: Survey Results2010In: Proceedings of the 23rd Internatonal Congress on Condition Monitoring and Diagnostic Engineering Management (COMADEM), June 28-July 2, 2010, Nara, Japan / [ed] Susumuku Okumura et al., Japan: Sunrise Publishing Limited , 2010, p. 805-812Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to investigate the IT procurement process within maintenance. The study was performed as a web-based questionnaire survey addressing maintenance managers in Swedish industry. The results showed that the decision to purchase IT to high extent is an internal matter within the maintenance organization. The procurement often involves several working areas. Most common is to involve people from maintenance and IT. The purchase is often run in project form and the most common support for the decision making is a systematic evaluation methodology or purchaser’s own experience. A requirements investigation precedes the purchase in most cases, and the involvement of future users is frequent. Maintenance IT investments are seen as connected to real needs and beneficial for the maintenance by the respondents. Some areas of improvement and further research were found: Systematic methods for procurement of IT is used to low extent, which implies a need for practical and easy tools within the area. Furthermore, the decision is in 35% of the cases not made by maintenance, and about 15% of the procurement projects did not involve maintenance at all. This could lead to misfit of IT systems to the business needs.

  • 346.
    Kans, Mirka
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Maturity based evaluation of IT systems for maintenance management2012In: International Journal of COMADEM, ISSN 1363-7681, Vol. 15, no 4, p. 15-25Article in journal (Refereed)
    Abstract [en]

    Research shows that investments in IT have a positive correlation to company profitability and competitiveness. Even though, IT projects often fail to deliver the expected benefits. One reason could be the increased complexity both with respect to project organization and implemented IT solutions. E-maintenance is a concept developed for dealing with this complexity by securing effective information logistics for the maintenance. The quality of the implemented IT system is affected by the quality of the procurement, therefore is of importance to find means to reduce quality problems in the early phases of the total systems life cycle. This paper addresses how the IT maturity of the maintenance organization could be considered in the IT procurement, especially in the evaluation of candidate systems.  The proposed method tries to simplify the process by considering IT maturity as a means to define key requirements, and as a basis for evaluation.  A model describing three phases of IT maturity within maintenance (IT beginners, medium IT users and IT mature organizations) forms the theoretical basis, and IT functionality required for each level are specified. The applicability of the approach is tested by evaluating 24 IT systems for maintenance management. In conclusion, the method can be used for defining IT requirements in a holistic manner as a means to achieve effective information logistics. The IT maturity model could also help organizations in forming their IT strategy towards the e-maintenance concept.

  • 347.
    Kans, Mirka
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Ehsanifard, Keyvan
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Moniri, Ali
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Criteria and model for assessing and improving information technology maturity within maintenance2012In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 364, article id 012097Article in journal (Refereed)
    Abstract [en]

    Maintenance optimization and decision-making processes have been both influenced considerably by Information Technology (IT) developments mainly by increasing data availability. The decision-making process in its turn has affected systems trustworthiness positively. Therefore, theoretically speaking it could be said that Maintenance Management Information technology (MMIT) has the potential to provide applicable solutions for many of the maintenance management problems. Nevertheless, this potential has been hardly experienced in practice because of the mismatch between the level of IT maturity in the organizations and their selected MMIT solutions. To fill this gap this paper suggests a number of criteria which are crucial in decision making for selecting a MMIT application. The criteria are formed based on previous findings utilising an extensive literature review. A model is further developed for this purpose which is also tested on a case company active in power generation in Sweden. The model proved to be helpful when taking further improvement steps for reaching high utilization of IT in maintenance.

  • 348.
    Kans, Mirka
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Ingwald, Anders
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Functionality Gaps in IT Systems for Maintenance Management2012In: International Journal of COMADEM, ISSN 1363-7681, Vol. 15, no 4, p. 38-50Article in journal (Refereed)
    Abstract [en]

    E-maintenance is an information intensive concept highly dependent on relevant and reliable information technology (IT) support. One important prerequisite is that IT functionality fits the demands of the maintenance organisation. The purpose of this paper is to investigate the existence of functionality gaps in the IT applications used for maintenance management. To accomplish the purpose a questionnaire survey asking professional users to estimate the misalignments/gaps in their current IT support. Functionality and information investigated are based on the standard EN 13460 documents for maintenance. The gathered data was thereafter analysed using statistical methods. The study reveals that the used IT solutions in general provide good support for maintenance management. However, the respondents perceive gaps to some degree in functionality and data related to maintenance follow up and improvement. The study indicates some contradicting results regarding IT and functionality for maintenance follow up and improvement. Some users state that there is a need for additional IT-support related to maintenance follow up and improvement while other state that the support exists but are not used. More in-depth studies of the reasons behind these contradicting results and also research in reasons behind apprehended gaps are required.

  • 349.
    Kans, Mirka
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Williamsson, Ia
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    IT Governance Strategies Utilized within Maintenance2011In: 24th international congress on Condition Monitoring and Diagnostics Engineering Management: Advances in Industrial Asset Integrity Management / [ed] Maneesh Singh, Raj B. K. N. Rao and J. P. Liyanage, Kolhata, India: Publishing Services PL , 2011, p. 1608-1616Conference paper (Refereed)
    Abstract [en]

    IT governance is the strategic alignment of IT with the business such that maximum business value is achieved through the development and maintenance of effective IT control and accountability, performance management and risk management. The aim with IT governance is to reach maximum benefit of IT investments. Three main strategies could be defined: centralized, decentralized or federal IT governance, where the latter could be seen as a centralized organization with some decentralized decision capabilities. What kind of IT governance strategies are used for the maintenance IT support? This paper reports on IT governance strategies used in Swedish industry based on cluster analysis of variables connected to systems ownership, IT investment decision, and participation in the procurement process. Three strategies were found: a decentralized where maintenance drives the investment decision, participates in the procurement and owns the system, a centralized where the decision is made by upper management, where maintenance is not participating in the procurement, but where maintenance owns the system, and a third where production makes the investment decision, the IT owns the system and maintenance is participating in the procurement. The last strategy could be seen as a kind of federal governance strategy. In further nonparametric tests three variables indicated significant differences between these strategies: use of CMMS, apprehended alignment of IT to business needs, and future user involvement in the purchasing. The decentralized strategy differed from the centralized with respect to apprehended alignment of IT to business needs and the federal differed from the decentralized in all the three variables. No significant differences were found between the federal and the central strategy.

  • 350.
    Kans, Mirka
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Williamsson, Ia
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Maintenance IT practices in Swedish industriy2010In: The 1st international workshop and congress on eMaintenance 2010, 22-24 June, Luleå, Sweden., 2010, p. 127-132Conference paper (Other academic)
    Abstract [en]

    Emerging technologies, e.g. web services and open sourcesoftware, are rapidly adopted in IT solutions, which are based onnew business logics such as SOA and SaaS. But is industry readyto utilise these solutions? The aim with this paper is to describecurrent IT practices within maintenance in Swedish industry, andto outline the future possible developments. The study is formedas a web-based questionnaire survey addressed to plants wherethe maintenance is performed in-house. 71 responses werereceived of 196 questionnaires sent.We find that the main part of the participants of this studyrepresents organisations that traditionally would be characterisedas mature regarding IT use. The IT practices are characterised byhigh use of business specific IT solutions, low use of companywide IT solutions and low IT intensity. The ownership of IT is tohigh extent tied to the maintenance function and the client-serverarchitecture is dominating. The findings imply that the focus of ITis for vertical (functional) support rather than horizontal ornetwork support, and a decentralised IT governance form.

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