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- Bergkvist, Linda, 1979-
(författare)
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Towards a Framework for Relational-Oriented Management of Information Systems Outsourcing : Key Conditions Connected to Actors, Relationships and Process
- 2014
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Currently, client and supplier firms are struggling with how they can make their information systems (IS) outsourcing engagements more valuable. This research points to the importance of successful practice and outcome in IS outsourcing for achieving engagements of value. To enhance the understanding of IS outsourcing over time, a process perspective is applied. Further, this research is based on the contention that IS outsourcing is more likely to be successful if challenges are managed in a proactive manner and with a relationship perspective. Thus, understanding challenges in IS outsourcing requires a symmetric view on client and supplier.The thesis is based on two studies presented as three steps of research: development, validation and reconsideration of a conceptual framework. The licentiate study centred on the step of development whereas the present doctoral study has a focus on the steps of validation and reconsideration. The purpose of this study includes investigating how the management of successful practice and outcome in IS outsourcing can be enabled. To address the purpose, the IS outsourcing process is studied in a client–supplier relationship. This includes that different actor perspectives, including strategic, operative, and systems, are considered for a better understanding of the practice of IS outsourcing, the challenges, and how different actors convey successful IS outsourcing.The thesis contributes a framework for relational-oriented management of IS outsourcing, which provides the structure for understanding what needs to be managed in terms of key conditions, when and how in connection to actors, relationships, and process. Theoretical propositions, enhancing the understanding of the complexity of IS outsourcing as well as the number of challenges involved, are also presented. In brief, these propositions relate to the circumstance that IS outsourcing requires management on different levels and with different kinds of results in mind.
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| 2. |
- Bihl, Björn, Docent, universitetslektor, 1963-, et al.
(författare)
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Att skriva på dialekt
- 2006
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Ingår i: Perspektiv på lärande i språk och litteratur. - Karlstad : Karlstad University Press. - 9185335835 ; , s. 9-26
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Konferensbidrag (refereegranskat)
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| 3. |
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| 4. |
- Bihl, Björn, Docent, universitetslektor, 1963-, et al.
(författare)
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Skriva på talets grund
- 2006
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Ingår i: Svenskans beskrivning 28. - Örebro : Örebro University Press. - 9176685144 ; , s. 51-58
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Konferensbidrag (refereegranskat)
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| 5. |
- Bihl, Björn, Docent, universitetslektor, 1963-, et al.
(författare)
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Te skriv sôm en taL
- 2006
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Ingår i: Lekt och lärt. - Växjö : Växjö University Press. - 9176365069 ; , s. 31-39
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 6. |
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| 7. |
- Hubbe, Martin A., et al.
(författare)
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Rate-limiting mechanisms of water removal during the formation, vacuum dewatering, and wet-pressing of paper webs : A Review
- 2020
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Ingår i: BioResources. - : North Carolina State University. - 1930-2126. ; 15:4, s. 9672-9755
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Tidskriftsartikel (refereegranskat)abstract
- Because some of the critical events during the removal of water before the dryer section on a paper machine happen very rapidly within enclosed spaces – such as wet-press nips – there have been persistent challenges in understanding the governing mechanisms.In principle, a fullerunderstanding of the controlling mechanisms, based on evidence, should permit progress in achieving both higher rates of production of paper and more reliable control of paper attributes. In addition, energy can be saved, reducing environmental impacts. The goal of this article is to review published work dealing both with the concepts involved in water removal and evidence upon which existing and new theories can be based. The scope of this review includes all of the papermaking unit operations between the jet coming from the headbox and the final wet-press nip of an industrial-scale paper machine. Published findings support a hypothesis that dewatering rates can be decreased by densification of surface layers, plugging of drainage channels by fines, sealing effects, flocculation, and rewetting. Ways to overcome such effects are also reviewed.
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| 8. |
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| 9. |
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| 10. |
- Sjöstrand, Björn, 1987-
(författare)
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Dewatering aspects at the forming section of the paper machine : Rewetting and forming fabric structure
- 2017
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The underlying motives of the research undertaken here are twofold: to obtain a deeper understanding of the dewatering mechanisms at the forming section of a papermaking machine and to develop numerical models that describe the flow through forming fabrics. More comprehensive knowledge of dewatering in the forming section allows suggestions to be made for improvements that reduce the amount of energy used in the process without affecting the quality of the end product. The objective of this thesis is to answer the following questions:How and why does rewetting occur at the high vacuum suction boxes?How does the structure of the forming fabric affect dewatering at the forming section?Is it possible to create accurate numerical models for forming fabrics, and can these be used to predict the dewatering behaviour of new types of fabrics? Laboratory and pilot studies simulating high vacuum suction boxes were performed together with numerical modelling of the flow of air and water through both the forming fabric and the paper sheet. The conclusion drawn from the pilot study is that rewetting significantly lowers the dryness of the paper sheet exiting the suction boxes. The phenomenon is extremely rapid and is most likely driven by capillary forces. The high speed at which this rewetting occurs makes it difficult to impede by placing the suction boxes closer to the couch pick-up: the solution is more likely to be the use of new and improved designs of the forming fabric. The structure of the forming fabric has been shown to affect the dewatering rate at certain conditions of vacuum dewatering, and can possibly be connected partly to the fact that fibres penetrate the surface of the fabric to varying degrees and partly to the flow resistance of the different fabric structures. Numerical models of high accuracy can be constructed and used to predetermine how new fabric designs would affect dewatering at the forming section. This thesis quantifies aspects of dewatering such as rewetting and the influence of the forming fabric. Understanding these dewatering aspects further provides for the potential enhancement of energy efficiency in the forming section, and thereby the entire papermaking process. The forming fabric can play an important role in improving energy efficiency: rewetting after the high vacuum suction boxes occurs more rapidly than was previously known, so its design might be the only possible way of impeding it. The forming fabric can also improve the rate of dewatering: it is therefore likely that its design will be important in the next stage of developing energy efficiency and thereby play a part in achieving a more sustainable future.
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