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  • 1401.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Adamson, Göran
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Holm, Magnus
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Moore, Philip
    De Montfort University, UK.
    Current Status of Function Blocks for Process Planning and Execution Control of Manufacturing Equipment2011In: Proceedings of the 21st International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2011: June 26 - 29th 2011, Feng Chia University, Taiwan / [ed] F. Frank Chen ..., Society of Lean Enterprise Systems of Taiwan , 2011, p. 963-973Conference paper (Refereed)
    Abstract [en]

    Manufacturing in a job-shop environment is often characterized by a large variety of products in small batch size, requiring real-time monitoring for dynamic distributed decision making, as well as dynamic control capabilities that are able to handle, in a responsive and adaptive way, different kinds of uncertainty, such as changes in demand and variations in production capability and functionality. In many manufacturing systems, traditional methods, based on offline processing performed in advance, are used. These methods are not up to the standard of handling uncertainty, in the dynamically changing environment of these manufacturing systems. Using real-time manufacturing intelligence and information to perform at a maximum level, with a minimum of unscheduled downtime, would be a more effective approach to handling the negative performance impacts of uncertainty. The objective of our research is to develop methodologies for distributed, adaptive and dynamic process planning as well a machine monitoring and control for machining and assembly operations, using event-driven function blocks. The implementation of this technology is expected to increase productivity, as well as flexibility and responsiveness in a job-shop environment. This paper, in particular, presents the current status in this field and a comprehensive overview of our research work on function block-enabled process planning and execution control of manufacturing equipment.

  • 1402.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society.
    Bi, Z. M.
    Current Status of 3D Data Acquisition and Processing Technologies2010In: 20th International Conference on Flexible Automation and Intelligent Manufacturing 2010 (FAIM 2010): Volume 2 of 2, Curran Associates, Inc., 2010, p. 595-607Conference paper (Refereed)
  • 1403.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Cai, Ningxu
    Hyperion Technologies, Inc..
    Feng, Hsi-Yung
    University of British Colombia.
    Ma, Ji
    University of Western Ontario.
    ASP: An Adaptive Setup Planning Approach for Dynamic Machine Assignments2010In: IEEE Transactions on Automation Science and Engineering, ISSN 1545-5955, E-ISSN 1558-3783, Vol. 7, no 1, p. 2-14Article in journal (Refereed)
    Abstract [en]

    This paper presents a decision-making approach towards adaptive setup planning that considers both the availability and capability of machines on a shop floor. It loosely integrates scheduling functions at the setup planning stage, and utilizes a two-step decision-making strategy for generating machine-neutral and machine-specific setup plans at each stage. The objective of the research is to enable adaptive setup planning for dynamic job shop machining operations. Particularly, this paper covers basic concepts and algorithms for one-time generic setup planning, and run-time final setup merging for dynamic machine assignments. The decision-making algorithms validation is further demonstrated through a case study.

  • 1404.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Feng, Hsi-Yung
    The University of British Columbia.
    Adaptive Manufacturing2011In: Journal of manufacturing systems, ISSN 0278-6125, E-ISSN 1878-6642, Vol. 30, no 3, p. 117-117Article in journal (Refereed)
  • 1405.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Feng, Hsi-YungThe University of British Columbia.
    Journal of Manufacturing Systems2011Collection (editor) (Refereed)
  • 1406.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Givehchi, Mohammad
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Web-DPP: An adaptive approach to planning and monitoring of job-shop machining operations2011In: Proceedings of the 7th CIRP-Sponsored International Conference on Digital Enterprise Technology, Athens, Greece, 2011, University of Patras , 2011Conference paper (Refereed)
    Abstract [en]

    Utilising the existing IT infrastructure, the objective of this research is to develop an integrated Web-based distributed process planning system (Web-DPP) for job-shop machining operations and their runtime execution monitoring. Our approach tries to engage a dispersed working group in a collaborative environment, allowing the team members to share real-time information through the Web-DPP. This paper analyses the challenges, and presents both the system design specification and the latest development of the Web-DPP system. Particularly, it proposes a two-tier architecture for effective decision making and introduces a set of event-driven function blocks for bridging the gap between high-level planning and low-level execution functions. By connecting to a Wise-ShopFloor framework, it enables real-time execution monitoring during the machining operations, locally or remotely. The closed-loop information flow makes adaptive planning possible.

  • 1407.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Givehchi, Mohammad
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Adamson, Göran
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Holm, Magnus
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    A sensor-driven 3D model-based approach to remote real-time monitoring2011In: CIRP annals, ISSN 0007-8506, E-ISSN 1726-0604, Vol. 60, no 1, p. 493-496Article in journal (Refereed)
    Abstract [en]

    This paper presents an integrated approach for remote real-time monitoring of manufacturing operations. It is enabled by using virtual 3D models driven by real sensor data. The objectives of this research are twofold: (1) to significantly reduce network traffic for real-time monitoring over the Internet: and (2) to increase the controllability of manufacturing systems from anywhere in a decentralised environment. Particularly, this paper covers the principle of the approach, system architecture, prototype implementation, and a case study of remote control of a robotic assembly cell. Compared with camera-based monitoring systems, our approach only consumes less than 1% of its network bandwidth, feasible and practical as a web-based portable solution. (C) 2011 CIRP.

  • 1408.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Givehchi, Mohammad
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Schmidt, Bernard
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Adamson, Göran
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Robotic Assembly Planning and Control with Enhanced Adaptability2012In: 45th CIRP Conference on Manufacturing Systems 2012 / [ed] G. Chryssolouris, D. Mourtzis, Elsevier, 2012, Vol. 3, p. 173-178Conference paper (Refereed)
    Abstract [en]

    The dynamic market today requires manufacturing companies to possess high degree of adaptability and flexibility in order to deal with shop-floor uncertainties. Such uncertainties as missing tools, part shortage, job delay, rush-order and unavailability of resources, etc. happen more often in assembly operations. Targeting this problem, this research proposes a function block enabled approach to achieving adaptability and flexibility in assembly planning and control. In particular, this paper presents our latest development using a robotic mini assembly cell for testing and validation of a function block enabled system capable of assembly and robot trajectory planning and control. It is expected that a better adaptability can be achieved by this approach.

  • 1409.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Holm, Magnus
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Adamson, Göran
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Embedding a process plan in function blocks for adaptive machining2010In: CIRP annals, ISSN 0007-8506, E-ISSN 1726-0604, Vol. 59, no 1, p. 433-436Article in journal (Refereed)
    Abstract [en]

    This paper presents a function block enabled approach towards adaptive process planning and machining. A two-layer structure of supervisory planning and operation planning is proposed to separate generic data from machine-specific ones. The supervisory planning is only performed once, in advance, at the shop level to generate machine-neutral process plans, whereas the operation planning is carried out at runtime at the machine level to determine machine-specific operations. Such adaptive decision making is facilitated by event-driven algorithms embedded in the function blocks. It is expected that the new approach can greatly enhance the dynamism of fluctuating job-shop machining operations.

  • 1410.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Keshavarzmanesh, Shadi
    Univ Western Ontario, Dept Mech & Mat Engn, London, ON, Canada .
    Feng, Hsi-Yung
    Univ British Columbia, Dept Mech Engn, Vancouver, BC V6T 1W5, Canada.
    A function block based approach for increasing adaptability of assembly planning and control2011In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 49, no 16, p. 4903-4924Article in journal (Refereed)
    Abstract [en]

    Today's market turbulences cause frequent changes in manufacturing environments. Products diversity, small batch sizes and short life cycles have increased production uncertainties and created a highly dynamic shop floor environment. One essential requirement of such an environment is an adaptive planning and control system that is sufficiently agile to respond to the variety of production requirements and enable easy system reconfiguration at run-time. When developing a product, assembly is a key area that impacts the manufacturing system's responsiveness to the changes. In this research, a framework and a new methodology are introduced to increase the adaptability and autonomy of job-shop assembly process planning and control using function blocks (FBs). A function block is a reusable functional module with an explicit event-driven model, and provides for data flow and finite state automata based control. Event-driven and FB-enabled decision-making is unique in adaptive assembly planning and control. It is explained through an example of a two-robot assembly work cell, where the result of the adaptive planning is wrapped in FBs for execution. The proposed approach has been implemented and simulated using Matlab Simulink in the case study. The simulation demonstrates how this approach would increase the adaptability and responsiveness to changes that may occur regularly in dynamic job-shop assembly operations.

  • 1411.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Keshavarzmanesh, Shadi
    The University of Western Ontario, Canada.
    Feng, Hsi-Yung
    The University of British Columbia, Canada.
    Reconfigurable Facility Layout Design for Job-Shop Assembly Operations2011In: Multi-objective Evolutionary Optimisation for Product Design and Manufacturing / [ed] Lihui Wang, Amos H. C. Ng, Kalyanmoy Deb, Springer London, 2011, p. 365-384Chapter in book (Refereed)
    Abstract [en]

    Highly turbulent environment of dynamic job-shop operations affects shop-floor layout as well as manufacturing operations. Due to the dynamic nature of layout changes, essential requirements such as adaptability and responsiveness to the changes need to be considered in addition to the cost issues of material handling and machine relocation when reconfiguring a shop floor’s layout. Here, based on the source of uncertainty, the shop-floor layout problem is split into two sub-problems and dealt with by two modules: re-layout and find-route. Genetic algorithm is used where changes cause the entire shop re-layout, while function blocks are utilized to find the best sequence of robots for the new conditions within the existing layout. This chapter reports the latest development to the authors’ previous work.

  • 1412.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Keshavarzmanesh, Shadi
    University of Western Ontario, Dept. of Mechanical and Materials Engineering, London, ON N6A 5B8, Canada.
    Feng, Hsi-Yung (Steve)
    University of British Columbia, Dept. of Mechanical and Materials Engineering, Vancouver, BC V6T 1Z4, Canada.
    A Hybrid Approach for Dynamic Assembly Shop Floor Layout2010In: Proceedings of the 6th IEEE Conference on Automation Science and Engineering, IEEE conference proceedings, 2010, p. 604-609Conference paper (Refereed)
    Abstract [en]

    Highly  turbulent  environment  of  dynamic  job-shop operations affects the shop floor layout problem as well as other areas. Due to frequently altering needs of layout, essential requirements such as adaptability and proactive responsiveness to the dynamic changes need to be considered in addition to the materials  handling  and  machine  relocation  costs  when  a  shop floor is reconfigured from one layout to the next. Targeting the autonomy  and  adaptability  of  dynamic  and  distributed  job-shop  assembly  operations,  this  paper  proposes  to  incorporate function block methodology to deal with the layout issues of the frequently  changing  environment.  This  is  an  extension  to  the authors’ previous work.

  • 1413.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Koh, S. C. LennyManagement School, Logistics and Supply Chain Management (LSCM) Research Centre, Sheffield University, UK.
    Enterprise Networks and Logistics for Agile Manufacturing2010Collection (editor) (Other academic)
  • 1414.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Ma, Ji
    The University of Western Ontario, Canada.
    Feng, Hsi-Yung
    The University of British Columbia, Canada.
    Web-DPP: A Distributed Process Planning System for Adaptive Machining Operations2009In: Proceedings of the 19th International Conference on Flexible Automation and Intelligent Manufacturing: FAIM 2009 / [ed] Farhad Nabhani, Catherine Frost, Sara Zarei, Munir Ahmad, William. G. Sullivan, Gemini International Ltd , 2009, p. 186-193Conference paper (Refereed)
    Abstract [en]

    Outsourcing, joint ventures, and cross-border collaborations have led to work environments geographically distributed across organizational and national boundaries. Targeting the distributed environment, the Web has been widely used for development of collaborative applications supporting dispersed working groups and organizations, because of its platform, network and operating system transparency, and its easy-to-use browser interface. The objective of this research is to develop an innovative Web-based distributed process planning system (Web-DPP) for machining operations. Our approach tries to engage a dispersed working group in a collaborative environment, allowing the team members to share real-time information through the Web-DPP. This paper presents both the system design specification and the latest development of this system.

  • 1415.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Ma, Ji
    Department of Mechanical and Materials Engineering, University of Western Ontario, London, Canada.
    Feng, Hsi-Yung
    Department of Mechanical Engineering, University of British Columbia, Vancouver, Canada.
    Web-DPP: towards job-shop machining process planning and monitoring2011In: International Journal of Manufacturing Research, ISSN 1750-0591, Vol. 6, no 4, p. 337-353Article in journal (Refereed)
    Abstract [en]

    Outsourcing, joint ventures and cross-border collaborations have led to job environments geographically distributed. Targeting the distributed environment, the web has been widely used for developing collaborative applications due to its platform, network and operating system transparency and easy-to-use interface. Utilising the existing infrastructure, the objective of this research is to develop an integrated Web-based Distributed Process Planning (Web-DPP) system for job-shop machining operations and execution monitoring. Our approach engages a dispersed working group in a collaborative environment, allowing team members to share real-time information through the Web-DPP. This paper presents both the system design specification and the latest development.

  • 1416.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Nee, Andrew Y. C.
    Collaborative Design and Planning for Digital Manufacturing2009Collection (editor) (Other academic)
  • 1417.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Ng, Amos H. C.University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.Deb, KalyanmoyUniversity of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Multi-objective Evolutionary Optimisation for Product Design and Manufacturing2011Collection (editor) (Refereed)
  • 1418.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre. Department of Production Engineering, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
    Schmidt, Bernard
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Nee, Andrew Y. C.
    Department of Mechanical Engineering, National University of Singapore.
    Vision-guided active collision avoidance for human-robot collaborations2013In: Manufacturing Letters, ISSN 2213-8463, Vol. 1, no 1, p. 5-8Article in journal (Refereed)
    Abstract [en]

    This paper reports a novel methodology of real-time active collision avoidance in an augmented environment, where virtual 3D models of robots and real camera images of operators are used for monitoring and collision detection. A prototype system is developed and linked to robot controllers for adaptive robot control, with zero robot programming for end users. According to the result of collision detection, the system can alert an operator, stop a robot, or modify the robot's trajectory away from an approaching operator. Through a case study, it shows that this method can be applied to real-world applications such as human-robot collaborative assembly to safeguard human operators.

  • 1419.
    Wang, Lihui
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Song, Yijun
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Gao, Qiaoying
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Designing function blocks for distributed process planning and adaptive control2009In: Engineering applications of artificial intelligence, ISSN 0952-1976, E-ISSN 1873-6769, Vol. 22, no 7, p. 1127-1138Article in journal (Refereed)
    Abstract [en]

    The objective of this research is to develop methodologies and a framework for distributed process planning and adaptive control using function blocks. Facilitated by real-time monitoring system, the proposed methodologies can be applied to integrate with functions of dynamic scheduling in a distributed environment. A function block-enabled process planning approach is proposed to handle dynamic changes during process plan generation and execution. This paper focuses mainly on distributed process planning, particularly on the development of a function block designer that can encapsulate generic process plans into function blocks for runtime execution. As function blocks can sense environmental changes on a shop floor, it is expected that a so-generated process plan can adapt itself to the shop floor environment with dynamically optimized solutions for plan execution and process monitoring.

  • 1420.
    Wang, Lihui
    et al.
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Yang, Xiaoyu
    School of Applied Science & Technology, Fanshawe College, London, ON, Canada.
    Assembly operator training and process planning via virtual systems2011In: International Journal of Sustainable Engineering, ISSN 1939-7038, E-ISSN 1939-7046, Vol. 4, no 1, p. 57-67Article in journal (Refereed)
    Abstract [en]

    In this paper, we present an integrated intuitive system for assembly operators training and assembly process planning by combining virtual reality with motion-tracking technologies. The developed conceptual prototype for assembly planning and training enables individuals to interact with a virtual environment in real time. It extends the new technologies of motion tracking and integrates them with virtual environment technologies to create real-time virtual work cell simulations in which assembly operators may be immersed with hands-on experiences. In addition to operators training, the experimental results to date are presented to demonstrate the potential contributions of human skills in achieving effective assembly planning including disassembly operations. It is expected that this approach will lead to environment-friendly and sustainable operations by conserving energy and cost that are first tested in a human-emerged virtual system.

  • 1421.
    Wang, Zhiyuan
    University of Skövde, School of Technology and Society.
    Study the relationship between real exchange rate and interest rate differential – United States and Sweden2007Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This paper uses co-integration method and error-correction model to re-examine the relationship between real exchange rate and expected interest rate differentials, including cumulated current account balance, over floating exchange rate periods. As indicated by the dynamic model, I find that there is a long run relationship among the variables using Johansen co-integration method. Final conclusion is that the empirical evidence is provided to show that our error-correction model leads to a good real exchange rate forecast.

  • 1422.
    Warell, Annelie
    et al.
    University of Skövde, School of Technology and Society.
    Wising, Johanna
    University of Skövde, School of Technology and Society.
    Skapandet av narcissistiska karaktärer: En symbolisk interaktionistisk- samt kulturanalytisk tolkning av uppkomsten av narcissism2009Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna studie är att ge förståelse för de förklaringsmodeller som ges av informanter gällande sexualförbrytares tolknings- och beteendemönster analyserat utifrån ett symbolisk interaktionistiskt perspektiv och ett socialpsykologiskt samt kulturanalytiskt perspektiv på narcissism. Det som behandlas i studien är hur personal inom psykiatrin uppfattar att självet hos sexualförbrytare utvecklats samt hur detta beskrivs i de två dokument studien använder sig av och hur dessa utsagor kan tolkas utifrån ett symbolisk interaktionistiskt perspektiv på identitetsskapande. Vidare belyses hur sexualförbrytares tolknings- och beteendemönster kopplas till narcissism utifrån ett socialpsykologiskt och kulturanalytiskt perspektiv. Genomförandet av studien har skett med hjälp av triangulering i form av kvalitativa, semistrukturerade djupintervjuer med personal vid Skogomeanstalten samt analys utifrån två dokument (Hedin, Kuosmanen,Lindholm & Månsson, 2002; Kwarnmark & Tidefors Andersson, 1999) som behandlar sexualbrottsdömda vid Skogomeanstalten. Framkommit i studien har att primär- samt sekundärsocialisation är av stor vikt vid utvecklingen av narcissistiska karaktärsdrag samt att kulturella och sociala förhållanden påverkar formandet av just dessa karaktärsdrag. Studien har påvisat dessa narcissistiska karaktärsdrag hos vissa av de sexualförbrytare som undersökts.

  • 1423.
    Wensberg, Eric
    University of Skövde, School of Technology and Society.
    Budgetlös styrning2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Under 1970-talet börjar företag förändra sitt arbetande med traditionell budget. Detta p.g.a.att budgeten inte ses som tillräckligt flexibel i världens olika förändringar. Många företag väljer att förbättra den traditionella budgeten med olika förbättringsåtgärder. Som ett exempel på detta är Handelsbanken som väljer ett nytt system Beyond Budgeting/Budgetlösstyrning. Ett ekonomistyrningssystem som är den traditionella budgetens motsats.

    Syfte: Studien syftar till att se hur de olika systemen fungerar i reella verksamheter, och speciellt de som har erfarenheter av Beyond Budgeting. Den vill också undersöka om man får liknande svar vid som litteraturen beskriver Beyond Budgeting.

    Metod: Uppsatsen använder sig av en kvalitativ undersökningsmetod och en fallstudie som undersöker ämnet Beyond Budgeting. Primärdata är insamlad egenom semistrukturerade intervjuer som sedan jämförts med sekundärdata i form av tidigare undersökningar samt litteratur.

    Slutsats: I undersökningen av de berörda företagen kunde ingen av dem ange en negativ effekt, alla de undersöka företagen beskrev BB helt utan brister. Enligt EAF/The Evolutionary Adoption beskrivs organisationers val av förändrade system, är anledningen att organisation upplever BB/Beyond Budgeting som nästintill felfritt. BB är designat att vara flexibelt och vara den traditionella budgetens motpol vilket de valda organisationerna eftersträvar. BB är också ett system som ger en överblick med nyckeltal och teknisk utveckling vilket EAF och empirin bekräftar. Nyckeltalen och den tekniska utvecklingen har gett BB dess framgång som ett lyckat system.

  • 1424.
    Wenäll, Johan
    University of Skövde, School of Technology and Society.
    Högskolan i Skövde tränar inför IPMA-certifiering2012In: Projektvärlden, ISSN 1652-3016, no 3, p. 29-29Article in journal (Other (popular science, discussion, etc.))
  • 1425.
    Westberg, Elias
    University of Skövde, School of Technology and Society.
    NÄTVERKSMARKNADSFÖRING: Direkthandel med fokusering på home party2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Marketing is an extremely broad concept and the number of methods available to promotetheir businesses are enormous. In today's society we are exposed to thousands of marketingmessages and most of the sort we automatically deleted. It is therefore important to be able tomarket themselves in the most efficient manner possible. There is no marketing method isbest for all businesses, but every company has to investigate and try the method that suits thethem. A form of marketing that is cost-effective is network marketing, where it is aboutpeople becoming distributors for the company and markets its products and recruiting newdistributors. The company pays compensation to each distributor based on what the dealerachieves in sales in its network, and thus the company pays for its advertising after theproduct has been sold, which means that no unnecessary cost to marketing exist.Since this form of selling is not in store but go directly from the company to end usersthrough any retailer, it is about direct selling. In this survey the aim is to find out if people areinterested to be these retailers and help companies market products through direct sellinghome party method. This study revealed that many have been at home party like customer andalso have bought anything, and that look good for networking companies. But actually beingdistributor do not seem to be interesting, which is a problem for these companies. Why theinterest in itself be a distributor was so low in the future will not be in this study, andtherefore requires more research on the subject. However, the form of compensation besignificant, since the pricing in this industry is on a commission and a majority of theparticipants in this study emphasized their commitment to a fixed normal monthly salary.

  • 1426.
    Westerlund, Patrik
    et al.
    University of Skövde, School of Technology and Society.
    Nieminen, Tapani
    University of Skövde, School of Technology and Society.
    Marknadskommunikation: Sinnesmarknadsföring inom klädbutiker beroende på om den är riktad mot män eller kvinnor2011Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Genom att tillämpa sinnesmarknadsföring i butikens marknadskommunikation så kan konsumenterna bli mottagliga för det budskapet som sänds ut till dem. Däremot är det få marknadsförare som idag arbetar aktivt med sinnesmarknadsföring. Detär en viktig del i att driva en butik då denna kommunikation kan vara en helt avgörande faktor i hur människan upplever butiken och produkterna. Syftet meduppsatsen är att analysera hur butikschefer tillsammans med medarbetarna arbetar med sinnesmarknadsföring samt hur konsumenterna påverkas av detta. Uppsatsens undersökning kommer att ge svar på hur olika marknadsföringssätt skiljer sig beroende på vem den riktar sig mot. Frågan som kommer att besvaras i uppsatsen är: Hur reagerar män och kvinnor på budskap som har till avsikt att påverkaderas sinnen?

  • 1427.
    Wibeck, Eleonore
    et al.
    University of Skövde, School of Technology and Society.
    Nydélius, Loui
    University of Skövde, School of Technology and Society.
    Ljussättnings- och andra behovslösningar för applikation på dörrar2009Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    This is a degree project for a bachelor in integrated product development. A work carried out during spring 2009 made by two design engineer students at the University of Skövde. The degree project has been done cooperating with a company that produces doors. The aim of the project has been to find a new way of implementing light and other need solutions to a door.

    One main part of the project involves finding and identifying the user’s needs which later were the foundation for the final outcome. With this as a start, a development phase began which consists of an iterative process with methods of creativity. This process has resulted in different conceptual ideas which has all been evaluated and finally reduced into four solutions. These have been visualized by Cad-software which have been chosen for its ability to show materials and constructions in an easy way.

    The final concepts has further on been developed in areas like abrasion resistance, choice of materials, calculation costs of components, control of existing patent and so on. This degree project define the design process from the first gathering of data to the final result and also a description of all the methods used in the project.

  • 1428.
    Wickelgren, Mikael
    University of Skövde, School of Technology and Society. GRI, Handelshögskolan vid Göteborgs universitet.
    Biltransporter – vår käraste utgift?2011In: Konsumtionsrapporten 2011, Göteborg: Göteborgs universitet, 2011, p. 22-25Chapter in book (Other academic)
  • 1429.
    Wickelgren, Mikael
    University of Skövde, School of Technology and Society.
    En skiss över Volvos historia2011In: Volvo i våra hjärtan - hur skall det gå?: En närdiskussion om "nationalklenoden" Volvo / [ed] Sten Jönsson & Mikael Wickelgren, Malmö: Liber, 2011, p. 30-62Chapter in book (Refereed)
  • 1430.
    Wickelgren, Mikael
    University of Skövde, School of Technology and Society.
    Requirements for change in consumer car buying practices - observations from Sweden2009In: Paper for the ECEEE (European Council for an Energy Efficient Economy) 2009 Summer Study, 1–6 June 2009, La Colle sur Loup, Côte d'Azur, France, 2009Conference paper (Refereed)
  • 1431.
    Wickelgren, Mikael
    University of Skövde, School of Technology and Society.
    Varumärket Volvo2011In: Volvo i våra hjärtan - hur skall det gå?: En närdiskussion om "nationalklenoden" Volvo / [ed] Sten Jönsson & Mikael Wickelgren, Malmö: Liber, 2011, p. 86-114Chapter in book (Refereed)
  • 1432.
    Wickelgren, Mikael
    et al.
    University of Skövde, School of Technology and Society.
    Andersson, Thomas
    University of Skövde, School of Technology and Society.
    Cäker, Mikael
    School of business, economics and law, University of Gothenburg.
    The infusion of incentive systems in Sweden - translating ideas from one context to another2013Conference paper (Refereed)
  • 1433.
    Wickelgren, Mikael
    et al.
    University of Skövde, School of Technology and Society.
    Kazemi, Ali
    University of Skövde, School of Technology and Society.
    Andersson, Thomas
    University of Skövde, School of Technology and Society.
    Tengblad, Stefan
    University of Skövde, School of Technology and Society.
    Personalledning i detaljhandeln: Ledarskap och medarbetarskap i svenska butiker2012Report (Refereed)
  • 1434.
    Wickerath, Susanne
    University of Skövde, School of Technology and Society.
    Definitions of an intangible asset: in context with HGB, IFRS and US-GAAP2008Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

     

     

    This Bachelor thesis deals with the definition of Intangible Assets in the context of

    financial reporting. The purpose is to integrate intangible assets into the balance

    sheet. After a thorough analysis of the ongoing research shows that there is general

    consensus concerning intellectual property, and general confusion concerning

    knowledge, information and organization capital. Some have what it takes to enter

    balance sheets, while others still lack a holistic concept that is generally accepted

    and fulfils the demand of accounting. Neither of them is reported according to the

    presently available and established knowledge. This thesis shows that a prerequisite

    for an improved reporting is the consequential extension of accounting principles for

    intangible assets. The fact that the term “intangible asset” became a gathering of all

    possible intangible phenomena demands counter-actions. One of its reasons is the

    demand for the measurement of relative performances of intangible assets. This

    thesis shows that reporting absolute figures for intangible assets does not stand in

    contrast with this, but can deliver the necessary data set for a holistic analysis that

    also deals with intangible assets.

     

     

  • 1435.
    Wilhelmsson, Emma
    University of Skövde, School of Technology and Society.
    Varumärkens påverkan av konkurrensmedel: hur påverkar valet av konkurrensmedel butikens arbete med att förstärka varumärket?2008Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I dagens samhälle har varumärken kommit att spela en allt mer betydelsefull roll för konsumenten. Vi exponeras för dem dagligen och det är därför näst intill omöjligt att inte påverkas av dem. Ett varumärke innebär inte enbart ett namn på en produkt utan även dess identitet, det vill säga de mervärden, värderingar samt uppfattningar som varumärket medför. I och med företagens ökade marknadsföringsåtgärder har det blivit svårare att kunna urskilja sig ifrån mängden. Det har därför blivit allt viktigare att kunna positionera sig på marknaden genom att skapa differentierade produkter för att kunna synas i mängden och nå ut till konsumenten. Genom att ha ett väl genomarbetat varumärke och en bra positionering kan företaget finna sin unika position på marknaden och därigenom skapa en plats i kundens medvetande. Butikerna utsätts alltså för en allt mer konkurrenskraftig marknad där detta arbete blivit allt viktigare att granska och utveckla. Undersökningen syftar till att beskriva hur butiker arbetar med att förstärka sitt varumärkes identitet samt positionering. Jag vill utreda hur det faktiska arbetet ser ut och hur detta arbete påverkas av de olika konkurrensmedel butiken har valt.

    Samtliga undersökta butiker har en unik varumärkesidentitet och arbetar på olika sätt med att förstärka sitt varumärke samt sin position. En av de intervjuade butikerna är Din Sko som just nu genomgår en förändring av sin positionering där de vill öka modegraden samt förbättra kvaliteten på produkterna. En strategi har därför utvecklats för att kunna bli allt mer konkurrenskraftiga, bland annat genom att förändra sina marknadsföringsåtgärder. De andra butikerna vars butikschefer har intervjuats är Hemköp, Pressbyrån samt ICA Maxi. De tre olika kedjorna har väl inarbetade varumärken och arbetet med att förstärka dem sker till stor del genom att trycka på de egenskaper de redan besitter samt ständigt utveckla och förbättra dem. För samtliga butiker som ingår i undersökningen påverkas arbetet med att förstärka sina varumärken på olika sätt av de konkurrensmedel de valt. Ett av Din Skos främsta konkurrensmedel är priset vilket försvårar deras arbete med att genomföra en förändring då detta är kostnadskrävande men får ändå inte påverka prisnivån i någon större bemärkelse. Hemköp och Pressbyrån satsar på konkurrensmedel som kräver stora resurser vilket kräver en relativt hög prisnivå på sortimentet. Detta kompenseras genom att butikerna ständigt måste påvisa på sin varumärkesidentitet och dess egenskaper för att kunderna ska tycka att det är värt att lägga några kronor extra för att handla i de båda kedjorna. ICA Maxi satsar på flera konkurrensmedel vilket gör att höga förväntningar skapas. För att behålla kundernas lojalitet måste företaget ständigt förbättra det svåra arbetet med att uppfylla dessa förväntningar.

  • 1436.
    Wingren, Magdalena
    University of Skövde, School of Technology and Society.
    Windscreen study using a free moving headform: An investigation of windscreen behaviour when subjected to headform impact2011Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Pedestrian protection performance becomes more and more in focus for the car manufactures and systems to reduce injury risk are under development. A wider understanding of both the present and the future windscreen performance in free moving headform testing is needed to optimize these systems. The purpose of this thesis was therefore to learn and understand windscreen behaviour when subjected to head impact and to gain knowledge of CAE status for head impact in windscreens from a pedestrian point of view.

    A literature review concluded that there are different ways to model a windscreen. It was found that the computer material models for laminated windscreen glass were not capable of fully representing the behaviour of this material under all impact conditions, particularly the non-linear behaviour after fracture or failure.

    Experimental testing on three different windscreen models, with a free moving headform in a horizontal impactor, has been performed. Test set up was according to Euro NCAP pedestrian testing protocol and three different windscreen angles were tested. The parameter investigated was curvature and HIC and deformation depth on the windscreen were used as evaluation tools. Deformation was measured with a laser positioned behind the windscreen at impact. Film analysis and integration of headform accelerations were used as comparison. The testing concludes that different curvature alone will not have a big influence on HIC and deformation.

     

    Keywords: PVB laminated windscreen, pedestrian, impact, free moving headform

  • 1437.
    Xiao, Shengting
    et al.
    University of Skövde, School of Technology and Society.
    Zhang, Jingyu
    University of Skövde, School of Technology and Society.
    Research on Agricultural Insurance Modes in China2007Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The agriculture is the basic industry of national economy, and as it has the characteristic of feebleness, its development requires the safeguard and support of many kinds of mechanisms. The agricultural insurance has a great significance for avoiding the risk during agricultural production and promoting the rural economy. But at present the demand and supplies of the agricultural insurance are both dispirited, and the status quo of development is not very atisfactory in China. Therefore, develop Chinese agricultural insurance is significant and urgent all the time.

    Although Chinese government has done a lot of innovations and experiments in some places, the agricultural insurance market is still dead-alive in China. This thesis constructs the research from the point of the present situation of the agricultural insurance, studies and compares the data of agricultural insurance modes in Shanghai, Xinjiang and Heilongjiang in the way of using the real diagnosis, thus to propose the new viewpoint on the mode of the agricultural insurance’s present stage which is used to anticipate the future of the agricultural insurance in the end.

  • 1438.
    Xu, Michelle
    et al.
    University of Skövde, School of Technology and Society.
    Karlsson, Therése
    University of Skövde, School of Technology and Society.
    Upplevd marknadskommunikation och relation genom sociala medier2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose is to gain a deeper understanding concerning the changes tocommunication and how these changes are perceived from customers and retail companies.Furthermore the intention is to see if these experiences affect the relationship between customer and company through Facebook.

    This study is based on a combination of quantitative and qualitative approach.Data has been collected with surveys and interviews from two Swedish retail companies and 17 of their customers also participated.

    The result is based upon the answers from only two Swedish retailcompanies and their customers. Because of the few components involved the findings cannotbe generalized.

    The findings are that both companies and customers agree regarding the importanceof a company Facebookpage. They also believe the significance of a company beingconstantly active as well. Though they disagree about the main purpose with the company Facebookpage since the customers and companies’ expectations differ. Both parties believethat the company Facebookpage has the possibility to improve the relation however it seemsto depend on personal experiences and opinions when applying to reality-cases.

  • 1439.
    Xu, Xun
    et al.
    Univ Auckland, Dept Mech Engn, Sch Engn, Auckland 1142, New Zealand.
    Wang, Lihui
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Newman, Stephen T.
    Univ Bath, Dept Mech Engn, Bath BA2 7AY, Avon, England.
    Computer-aided process planning: A critical review of recent developments and future trends2011In: International journal of computer integrated manufacturing (Print), ISSN 0951-192X, E-ISSN 1362-3052, Vol. 24, no 1, p. 1-31Article, review/survey (Refereed)
    Abstract [en]

    For the past three decades, computer-aided process planning (CAPP) has attracted a large amount of research interest. A huge volume of literature has been published on this subject. Today, CAPP research faces new challenges owing to the dynamic markets and business globalisation. Thus, there is an urgent need to ascertain the current status and identify future trends of CAPP. Covering articles published on the subjects of CAPP in the past 10 years or so, this article aims to provide an up-to-date review of the CAPP research works, a critical analysis of journals that publish CAPP research works, and an understanding of the future direction in the field. First, general information is provided on CAPP. The past reviews are summarised. Discussions about the recent CAPP research are presented in a number of categories, i.e. feature-based technologies, knowledge-based systems, artificial neural networks, genetic algorithms, fuzzy set theory and fuzzy logic, Petri nets, agent-based technology, Internet-based technology, STEP-compliant CAPP and other emerging technologies. Research on some specific aspects of CAPP is also provided. Discussions and analysis of the methods are then presented based on the data gathered from the Elsevier’s Scopus abstract and citation database. The concepts of ‘Subject Strength’ of a journal and ‘technology impact factor’ are introduced and used for discussions based on the publication data. The former is used to gauge the level of focus of a journal on a particular research subject/domain, whereas the latter is used to assess the level of impact of a particular technology, in terms of citation counts. Finally, a discussion on the future development is presented.

  • 1440.
    Yang, Xiaoyu
    et al.
    National Research Council of Canada.
    Wang, Lihui
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    VR-Assisted Assembly Planning2009In: The International 3rd Swedish Production Symposium / [ed] B. G. Rosén, The Swedish Production Academy , 2009, p. 423-428Conference paper (Refereed)
    Abstract [en]

    In this paper, we present an intelligent assembly planning and training system combining virtual reality (VR) and motion tracking technologies. The development conceptual prototype for assembly planning and training enables individuals to interact with virtual environment in real time. It extends the new technologies of motion tracking and integrates them with virtual environment technologies to create real-time virtual work cell simulations in which workers may be immersed with hands-on experiences. The experimental results to date are presented to demonstrate the contributions of human skills in achieving intelligent assembly planning.

  • 1441.
    Yu, Jesper
    et al.
    University of Skövde, School of Technology and Society.
    Karlsson, Daniel
    University of Skövde, School of Technology and Society.
    Conceptual mobile device with focus on design for recycling2011Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    One of the largest product categories within all the electronic products is portable ­computers, also known as notebooks, is slowly replacing stationary computers and is ­predicted to be the mainstream choice in the near future. But the current state of ­notebook shows these products are not accommodated for an effective large scale ­recycling process. As the notebooks are becoming more compact, its inner ­structures have become more complicated. Permanently fastening methods, multi-material ­compositions and many other factors contribute to an ineffective, expensive and tedious recycling process.

    The goal of the project treated in this report was to investigate the possibilities of a simplified structure adapted for an effective disassembly and recycling process. And to develop a conceptual notebook adapted for the stated purpose.

    The project resulted in a conceptual notebook named Sixten with an enhanced and ­simplified inner structure. All permanently fastening methods was replaced by ­detachable locking and securing devices. The number of tools required for dismantling was reduced, as the usage of screws. The variation of materials used in the notebook, with ­electrical components apart, is low. These materials, ABS plastics and aluminum were chosen based on their recyclable and processing possibilities. But also because of the durability and desired mechanical properties the structure required. The limited number of materials used in Sixten makes it environmentally beneficial since every material ­requires its own specific recycling process, and by reducing the number of materials energy can be saved on using only a few recycling methods.

    Sixten fulfills the principals of design for disassembly as a notebook that is easy to ­disassemble in comparison with notebooks on the market today. The disassembly time has been reduced, from the 45 minutes which may be required to fully disassemble a conventional notebook, down to an estimated disassembly time of 6 minutes, which is the time Sixten requires. It is in this short disassembly time where the economic benefits of Sixten lie.

  • 1442.
    Yue, Xiabin
    et al.
    University of Skövde, School of Technology and Society.
    Xing, Bo
    University of Skövde, School of Technology and Society.
    The impact of R&D intensity on the volatility of stock price: A study of the Swedish Market during year 1997-20052007Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis investigates the theoretical and empirical relationships between a firm’s R&D investment intensity and the systematic risk of its common stock in Sweden. This is done by examining 38 Swedish firms between 1997 and 2005. An overlapping set of 5-year window is chosen to apply to calculate the variables of the samples.

    In this thesis, three factors are introduced as a proxy of main constituents of systematic risk: intrinsic business risk, degree of financial leverage and degree of operating leverage. And we use these three constituents to analysis the relationship between R&D investment and systematic risk.

    The results from Monte Carlos simulations and correlation analysis of our sample show that, in Sweden, firms with higher R&D intensity do face higher stock price volatility in the stock market. At the same time, we attempt to test the relationship among R&D and systematic risk’s three constituents, but find that R&D intensive firms have more financial leverage which is opposite to our expect, which might due to the shortage of data and limitation of our sample selection, and R&D intensive firms do not have obvious relations directly with intrinsic business risk, degree of financial leverage or degree of operating leverage.

  • 1443.
    Yüksel, Simon
    et al.
    University of Skövde, School of Technology and Society.
    Sedin, Peter
    University of Skövde, School of Technology and Society.
    Extern ekonomisk kompetens: Familjeföretag och anlitandet av extern ekonomisk kompetens2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Research on family business is quite extensive. But there are still many questions that remain unanswered. An important issue relating to family business development is the desire to bring in external expertise in the finance area. It may involve services such as finance manager, controller or accountant. In this work the authors have attempted to answer the question of why the management of family businesses chooses to bring in external expertise in economics. The theory implies that the family business as long reluctant to bring in external expertise for the benefit of their own family members. The conclusions to be drawn after evaluating responses from eight family business CEOs and externally added staff in finance is that they are mostly very much welcoming the appointment of external staff in finance. Most of the view implies that without the addition of external staff, the companies would not develop as successfully as they have done. They see external staff within the finance area as strength for the new knowledge, experience and skills that businesses will benefit from. Many CEO: s advocates that you get in a person who can come up with other solutions to the problems than the conventional ones, but also a less emotional approach to family business affairs, which may be a distinct advantage. New ideas and knowledge will benefit the company. However, the personal dynamics of the external competence are of great importance to companies in the survey, it should fit into the entrepreneurial spirit and be easy to deal with, but still have privacy. Disadvantages as some have pointed out are for example, if the externally appointed expert may terminate their service or manipulate the records.

    Given all the laws and regulations that govern todays businesses requires a lot of expertise in economics, especially in the consolidated financial statements, taxation, financial statement and annual reports. This knowledge can in a few cases be met by family members, but in the vast majority of companies, you need to get the skills into the company from outside.

    We believe that our study has given us answers to the questions we had put up on the family company's approach to the use of external expertise in economics. Namely, those family businesses that want to develop win a lot of hiring external expertise in economics. Not just economically but also in many other areas.

    Keywords: Family firm, External financial competence, Corporate governance, Complexity of family firms, Succession planning. 

  • 1444.
    Zafran, Ulrika
    et al.
    University of Skövde, School of Technology and Society.
    Mohlin Z, Emmelie
    University of Skövde, School of Technology and Society.
    Tillbaka till samhället: En undersökning av unga vuxna deltagare i verksamheten Catch Up2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Fokuset i denna uppsats ligger på att undersöka hur vilken roll Catch Up spelar för de unga vuxnas återintegrering i samhället via studier och arbete. Studien vill vidare undersöka om större förmåga att integrera sig i samhället stärker deltagarens egen roll i samhället, ändrar dennes attityder mot sig själv och andra samt ökar kommunikationsförmågan. Genom denna studie hoppas vi kunna bidra till en ökad förståelse av de socialpsykologiska problem som de unga vuxna deltagarna i Catch Up upplever samt kunna förklara de problem mekanismer som försvårar unga vuxnas integrering i samhället. Verksamheten Catch Up ligger i Skövde kommun och är en del av socialtjänsten. Verksamhetens mål är myndighetssamverkan kring unga vuxna i åldrarna 18-29. För att delta i verksamheten ska individen vara beroende av försörjningsstöd samt ha ett hinder av någon form, t ex. psykisk ohälsa. Uppsatsen utgår från den symbolisk interaktionistiska traditionen med inslag av teorin om symboliskt kapital. Tillvägagångssättet har en kvalitativ grund med semistrukturerad intervju, där åtta deltagare på Catch Up intervjuades. Resultatet visade att uppmärksamheten individerna får från Catch Ups personal gör att de kan ändra sin attityd gentemot sig själv och samhället till mer positivt. Dessutom ökar och effektivera de sin kommunikationsförmåga samt skapar en större tillit till sin sociala kontext.

  • 1445.
    Zaher, Fadi
    University of Skövde, School of Technology and Society.
    Evaluating Asset-Pricing Models in International Financial Markets2006Doctoral thesis, monograph (Other scientific)
    Abstract [en]

    This thesis consists of three empirical studies on asset-prices in international financial markets. The purpose is three-fold. First, to evaluate whether good predictions of economic variables may be obtained by pooling information from a broad group of financial variables. Second, to formulate asset-pricing models from seven established stock markets. Third, to evaluate the asset-pricing models in the presence of short-sales.

    Chapter 2 applies a large data set, consisting of 167 monthly time series for the UK, both economic and financial, to simulate out-of-sample predictions of industrial production, inflation, three-month Treasury-Bills and other variables. Fifteen dynamic factor models that allow forecasting based on large panels of time series are considered. The performances of these factor models are then compared to the following competing models: a simple univariate autoregressive, a vector autoregressive, a leading indicator, and a non-expectational Phillips curve models. The results show that the dynamic factor models outperform the competing models in forecasting at 6-, 12-, and 24-month horizons. Two main findings are highlighted. First, the financial markets have a predictive power in terms of economic activity. Second, for some variables, the dynamic factor model appears to be more reliable than other competing models.

    In an attempt to analyze the equity premium puzzle and the risk-free rate puzzle, Chapter 3 compares different asset-pricing models within an international framework. To do so, it evaluates the performance of the following models: time separable-constant relative risk aversion, internal habit, external habit with externality, external habits which yield a constant risk-free rate, adaptive learning with constant gain, and state non-separability. The data are from seven industrialized countries, namely the United States, Canada, Japan, the United Kingdom, France, Denmark, and Sweden. Regarding empirical evidence, this thesis uses the Hansen-Jagannathan approaches to impose volatility restrictions on the asset-pricing models. The time-separable, adaptive learning and external habit models fail, and the evidence favors the internal habit persistence model. However, success is limited to some countries and to the equity premium puzzle rather than the risk-free rate puzzle. Finally, the state-non-separable specification consistently resolves the equity premium puzzle for all the countries.

    Chapter 4 analyzes the effect of market frictions on the equity premium puzzle. Indeed, in the standard asset-pricing model with time-separable preferences, the volatility of the intertemporal marginal rate of substitution is too low for plausible values of risk aversion to be consistent with consumption and asset return data. Following this, the Hansen-Jagannathan method is applied to evaluate the equity premium puzzle for the UK in two directions. First, the time-separable model, the internal and the external habit formation models and the state non-separable model are examined under the assumptions of both frictionless markets and market frictions. Second, a bootstrap experiment is conducted to show that these asset-pricing models violate the Hansen-Jagannathan bound in almost all the samples. Indeed, because of the changes in the sample means in consumption growth and asset returns, all the models appear to be weak under frictionless markets. By contrast, asset-pricing models with market frictions are much more successful in the bootstrap experiment.

  • 1446.
    Zaher, Fadi
    University of Skövde, School of Technology and Society.
    What is the Impact of Market Friction on Utility Based Asset Pricing Theory?2006In: European Economic Association (EEA): Proceeding from Vienna 24 – 28 august 2006, 2006Conference paper (Other academic)
  • 1447.
    Zetterberg, Stefan
    et al.
    University of Skövde, School of Technology and Society. University of Skövde, School of Technology and Society.
    Into, Camilla
    University of Skövde, School of Technology and Society.
    Transitlager som en strategi i ett globalt distributionssystem2009Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Nuförtiden är det stora flertalet försörjningskedjor internationella till sin karaktär och trenden går alltmer mot fokuserade fabriker. Det innebär att ett fåtal fabriker som var och en fokuserar på ett fåtal produkter tar hand om produktionen för hela världsmarknaden. Då tillverkningen sker på få utvalda platser och marknader världen över ska försörjas ifrån dessa krävs ett globalt distributionssystem som ska klara av att hantera den ökade konkurrensen, kundernas krav på kortare ledtider och den ökade differentieringen av produkter.

    Det finns olika strategier för att hantera ett globalt distributionssystem. Syftet med denna uppsats är att utreda om en transitlagerstrategi kan vara ett konkurrenskraftigt komplement eller alternativ till de mer vanligt förekommande distributionsstrategierna. Studien har gjorts genom att skapa ett teoretiskt ramverk vilket beskriver hur det globala distributionssysteme kan hanteras. Med förutsättningen att företagen idag har ett globalt distributionssystem måste de kunna distribuera sina varor över hela världen och teorin behandlar tre distributionsstrategier för att hantera detta och det är centraliserad distributionsstrategi, decentraliserad distributionsstrategi och transitlagerstrategi. De olika distributionsstrategiernas egenskaper samt för- och nackdelar beskrivs för att avgöra i vilka affärsmiljöer respektive strategi lämpar sig.

    Det teoretiska ramverket behandlar hur företag kan välja mellan och kombinera de olika distributionsstrategierna utifrån deras förutsättningar att produkterna ska nå många marknader från ett fåtal fabriker. För att underlätta valet av distributionsstrategi har en matris konstruerats i ramverket. Matrisen bygger på ett antal utvalda variabler vilka är viktiga att ta hänsyn till. Avslutningsvis när en strategi eller en kombination av strategier är vald ska teorin behandla hur företagen praktiskt kan arbeta med de olika strategierna.

    Empirin kommer att redogöra för två fallstudier där de olika företagen är Etylenaminer och Eka Chemicals. Det kommer att beskrivas hur deras distributionssystem ser ut idag, vilka distributionsstrategier som de använder samt hur de arbetar praktiskt med dem.

    I analysen har det teoretiska ramverket ställts emot den insamlade empirin för att utreda om transitlagerstrategin kan vara ett konkurrenskraftigt komplement till den centrala distributionsstrategin och den decentraliserade distributionsstrategin. Den slutsats som forskningen leder fram till är att det finns mer än ett sätt att strukturera distributionssystemet på och genom det bli framgångsrik på en global marknad. Oavsett vilket distributionssystem ett företag har byggt upp kan transitlagerstrategin utgöra ett bra komplement eller alternativ till den centraliserade distributionsstrategin och den decentraliserade distributionsstrategin för att vinna konkurrensfördelar på marknaderna. Transitlagerstrategin kan bland annat ge upphov till kortare ledtider än vad som kan uppnås med den centraliserade distributionsstrategin och mindre kapitalbindning än vad tillämpningen av den decentraliserade distributionsstrategin ger genom att produkten inte behöver lagras lokalt för att erbjuda kunden korta ledtider. Forskningen visar vidare på att det tar mycket lång tid att utveckla en renodlad transitlagerstrategi men att företagen redan i de tidiga utvecklingsfaserna av strategin kan tillgodogöra sig stora konkurrensfördelar.

  • 1448.
    Zgog, Zana
    et al.
    University of Skövde, School of Technology and Society.
    Wedberg, Åse
    University of Skövde, School of Technology and Society.
    Från fabriksförsäljning till fenomen?: Konkurrensmedels betydelse för en outlet2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna uppsats handlar om konkurrensmedel och hur en outlet arbetar med dessa för att påverka konsumenter i deras val. Bakgrund till uppsatsen är den starka konkurrensen som idag finns inom kläd- och varumärkesbranschen. I takt med att allt fler butiker öppnar sina dörrar intensifieras kampen om konsumenterna. Därför vill vi studera hur en Factory Outlet, som ofta saknar de fördelar, som till exempel en centralt belägen butik har, får konsumenter att välja just dem. Problemställningen som skall belysas är vilka konkurrensmedel en outlet har att jobba med och vilka de faktiskt använder för att skapa en alldeles unik mix som medför att konsumenterna väljer just dem. Vi har därmed utformat en problemformulering som lyder: Vilket konkurrensmedel är det som främst påverkar konsumenten att åka till en outlet, och hur jobbar och använder en outlet olika konkurrensmedel? Syftet med vår uppsats är att utifrån ett företagsekonomiskt perspektiv beskriva hanteringen av olika konkurrensmedels betydelse för en outlet och dess kunder. Vi kommer att fördjupa oss i undersökningen av vilka konkurrensmedel som används och hur de används, samt varför konsumenterna väljer att besöka en outlet. Vi kommer att använda oss av teorier så som konkurrensmedelsmixen, sexhörningen och konsumenters butiksval. Vår undersökning är uppdelad i två delar och utgår ifrån både en kvalitativ- och kvantitativ ansats. Vi ser en klar fördel att använda sig av båda två, då detta medförde att vi begränsade några utav nackdelarna hos varje metod. Undersökningen genomfördes på en av nordens största outlet för varumärken, vid namn Vingåkers Factory Outlet. Den första delen av undersökningen innefattar en öppen individuell intervju med den valda outletens marknadsansvarig och den andra delen innehåller 60 individuella konsumentintervjuer. De centrala slutsatserna för uppsatsen är att Vingåkers Factory Outlets sortiment och varumärkesutbud är det konkurrensmedel, som har störst påverkan på konsumenternas val att åka till outleten. Det är även detta konkurrensmedel som vi kommit fram till att outleten satsar och arbetar mest med. Därför kan vi även konstatera att Vingåkers Factory Outlet prioriterar helt rätt i sitt arbete med de olika konkurrensmedlen.

  • 1449.
    Zhang, Dan
    et al.
    University of Ontario Institute of Technology.
    Wang, Lihui
    University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.
    Gao, Zhen
    University of Ontario Institute of Technology.
    An integrated approach for remote manipulation of a high-performance reconfigurable parallel kinematic machine2010In: Journal of manufacturing systems, ISSN 0278-6125, E-ISSN 1878-6642, Vol. 29, no 4, p. 164-172Article in journal (Refereed)
    Abstract [en]

    Flexible and effective manipulation is important and meaningful for the further development and applications of parallel manipulators in the industrial fields, especially for high performance manufacturing. Web-based manufacturing has emerged as an alternative manufacturing technology in a distributed environment. In this paper, an integrated approach is proposed for remote manipulation of the reconfigurable parallel kinematic machine (RPKM) based on sensor-driven Wise-ShopFloor framework. The concept of Wise-ShopFloor integrates the modules of detailed architecture design, module interactions, sensor data utilization and model predictive control. In order to demonstrate the efficiency of this novel methodology, an example of a five degrees-of-freedom (DOF) RPKM is developed for surface finishing. The reconfigurability, the necessary kinematic analysis, and the performance mapping of the 5-DOF RPKM are conducted so as to implement the proposed approach.

  • 1450.
    Zhang, Dan
    et al.
    School of Mechanical and Power Engineering, Nanjing University of Technology, China / Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, Canada.
    Wang, Lihui
    University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
    Gao, Zhen
    Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, Canada.
    Su, Xiaoping
    School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, China .
    On performance enhancement of parallel kinematic machine2013In: Journal of Intelligent Manufacturing, ISSN 0956-5515, E-ISSN 1572-8145, Vol. 24, no 2, p. 267-276Article in journal (Refereed)
    Abstract [en]

    This paper proposes a spatial three degrees of freedom (DOF) parallel kinematic machine enhanced by a passive leg and a web-based remote control system. First, the geometric model of the parallel kinematic machine is addressed. In the mechanism, a fourth kinematic link-a passive link connecting the base center to the moving platform center-is introduced. Each of the three parallel limbs is actuated by one prismatic joint, respectively. The additional link has three passive DOF, namely two rotations around x and y axes and one translation along z axis. With the existence of this link, the unwanted motion of the tool (located in the moving platform) is constrained. The fourth link also enhances the global stiffness of the structure and distributes the torque from machining. With the kinematic model, a web-based remote control approach is applied. The concept of the web-based remote manipulation approach is introduced and the principles behind the method are explored in detail. Finally, a remote manipulation is demonstrated to the proposed structure using web-based remote control concept.

2627282930 1401 - 1450 of 1463
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