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2021 Vehicle Dynamics seminar
- 2021
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Editorial proceedings (other academic/artistic)abstract
- The seminar is held annually. The full title of this year's seminar was "2021 Vehicle Dynamics seminar -- for Future Mobility ...and not only Lateral".
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| 5. |
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23rd Nordic Workshop on Bibliometrics and Research Policy 2018 Book of abstracts
- 2018
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Editorial proceedings (other academic/artistic)abstract
- Initiated by Professors Olle Persson and Peter Ingwersen, bibliometric researchers in the Nordic countries have arranged annual Nordic workshops on bibliometrics since 1996. The general scope of the Nordic Workshop on Bibliometrics and Research Policy is to present recent bibliometric research in the Nordic countries, to create better linkages between the bibliometric research groups and their PhD students, and to link bibliometric research with research policy.The workshop language is English and the workshop is open to participants from any nation. The 23rd Nordic Workshop on Bibliometrics and Research Policy (NWB’2018) was organized by the Swedish School of Library and Information Science (SSLIS) at University of Borås, Sweden. It was held at University of Borås, on November 7-9th, 2018 with 100 participants.In total, we received 35 submissions. After reviewing the submissions, the program committee decided which papers were to be presented orally and which as poster presentations. 21 papers were accepted as oral presentations. These, as well as the titles of the two invited keynote talks and the abstracts of 9 posters, are presented as abstracts in these proceedings. The posters and oral presentation slides are also available for viewing and peer-feedback at figshare (with citable DOIs):https://doi.orgWe would like to thank all authors for their submissions, the session chairs and the keynote speakers, Fredrik Åström and Merle Jacob, for their contributions to the workshop and the student volunteers, for their diligent efforts during the workshop. Further, we would like to thank the sponsors for their generous financial support, without which the Nordic workshops could not be organised in their current form.The NWB’2017 website is at https://hb.se/nwb2018Follow on twitter as @nwb_2018 and #nwb2018
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31 recommendations for increased profit - reducing waste
- 2010
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Reports (other academic/artistic)abstract
- Those companies and organizations that wish to ensure long-term profitability must successively decrease resource use in both product development and in product usage. Primarily, it is waste that must be reduced, i.e. the consumption of resources that do not add to customer value or to the organization. Waste is widespread in all operations. Even in well-functioning processes, more than half of the resource consumption can be classified as waste. One obstacle to waste elimination is that most waste is hidden. Thus, executives, middle management and specialists must prioritize efforts to uncover the waste in their operations.Building and construction activities consist of a complex system of decisions, components, organizations and processes that must be coordinated. There are therefore many explanations as to why waste arises, or does not. Based on a series of discussions with experienced builders, consultants, contractors and materials providers, five main groups of factors that characterize effective operations were found. In this report these factors are illustrated in the form of a “value pyramid”. A holistic view of long-term customer benefits is the apex of the pyramid. Structure, competence, leadership and culture act as the driving forces at each corner of the pyramid’s foundation. Should one of the corners gives way, then the pyramid risks toppling over.With the value pyramid as support, 31 recommendations for what should be done to reduce waste are presented. These are aimed at standardizing the product from an overall perspective (five recommendations), defining and standardizing processes (ten recommendations), developing the organization and its competence (seven recommendations), disciplining management (five recommendations), and driving continuous improvement work (four recommendations). Reducing uncertainties and increasing effective time utilization are the red threads, as the Swedes would say, that run through all the recommendations.Everyone who uses resources has a responsibility to reduce waste. By systematically monitoring one’s own use of time, one can gain insights that will help improve one’s work situation. However, the burden of initiating and driving improvements overall obviously lies with management. How this should be done depends on the nature and purpose of the activities as well as on the organization’s capabilities. It is to manage this progress and achieve profitability that managers are appointed. It is in the interest of all enterprises and organizations to develop the ability and an interest to detect and understand what work/task is value adding what is not. This ability will provide possibilities to develop new competitive advantages and new business concepts.
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| 10. |
- A, Lavanya, et al.
(author)
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Smart energy monitoring and power quality performance based evaluation of 100-kW grid tied PV system
- 2023
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In: Heliyon. - 2405-8440. ; 9:6
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Journal article (peer-reviewed)abstract
- Globally, the demand for energy from renewable sources is growing due to the increasing electricity consumption and the pollution of fossil fuels. The government has framed various policies to facilitate green energy generation, encouraging renewable energy source usage through PV installations in multiple sectors, including educational institutions. The primary objective of this paper is to propose a methodological approach for analysing the performance of the installed PV system on the rooftop of a university building in Tamil Nadu, India. The site selected is favourable for electricity generation from PV systems with an average global solar radiation of 5.82 kWh/m2day. Solar energy changes periodically with annual and daily variations and is not steady due to seasonal changes. The step-by-step performance assessment and the annual performance of the 100-kW solar PV system, which was instituted in 2019, with the forecasted parameters, are presented in this paper. Therefore, the assessment analysis is carried out in four phases: feasibility assessment, Energy yield assessment, Life cycle assessment, and Power quality assessment. To improve the solar PV output and efficiency, considering the solar irradiation, temperature, wind velocity, etc., PV yield is measured to evaluate the PV system's energy metrics. This paper also considers the carbon credits earned, solar power generated in the location, and the payback period. The power quality assessment is carried out in this paper to test the PV plant's compliance with effective grid integration.
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| 11. |
- A.O., Tillmar, et al.
(author)
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Using X-chromosomal markers in relationship testing: Calculation of likelihood ratios taking both linkage and linkage disequilibrium into account
- 2011
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In: Forensic Science International: Genetics. - : Elsevier BV. - 1872-4973 .- 1878-0326. ; 5:5, s. 506-511
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Journal article (peer-reviewed)abstract
- X-chromosomal markers in forensic genetics have become more widely used during recent years, particularly for relationship testing. Linkage and linkage disequilibrium (LD) must typically be accounted for when using close X-chromosomal markers. Thus, when producing the weight-of-evidence, given by a DNA-analysis with markers that are linked, the normally used product rule is invalid. Here we present an implementation of an efficient model for calculating likelihood ratios (LRs) with markers on the X-chromosome which are linked and in LD. Furthermore, the model was applied on several cases based on data from the eight X-chromosomal loci included in the Mentype® Argus X-8 (Biotype). Using a simulation approach we showed that the use of X-chromosome data can offer valuable information for choosing between the alternatives in each of the cases we studied, and that the LR can be high in several cases. We demonstrated that when linkage and LD were disregarded, as opposed to taken into account, the difference in calculated LRs could be considerable. When these differences were large, the estimated haplotype frequencies often had a strong impact and we present a method to estimate haplotype frequencies. Our conclusion is that linkage and LD should be accounted for when using the tested set of markers, and the used model is an efficient way of doing so.
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| 12. |
- Aabel, Lise, et al.
(author)
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A TDD Distributed MIMO Testbed Using a 1-bit Radio-Over-Fiber Fronthaul Architecture
- 2024
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In: IEEE Transactions on Microwave Theory and Techniques. - 0018-9480 .- 1557-9670. ; In Press
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Journal article (peer-reviewed)abstract
- We present the uplink and downlink of a time-division duplex distributed multiple-input multiple-output (D-MIMO) testbed, based on a 1-bit radio-over-fiber architecture, which is low cost and scalable. The proposed architecture involves a central unit (CU) that is equipped with 1-bit digital-to-analog and analog-to-digital converters, operating at 10 GS/s. The CU is connected to multiple single-antenna remote radio heads (RRHs) via optical fibers, over which a binary radio frequency (RF) waveform is transmitted. In the uplink, a binary RF waveform is generated at the RRHs by a comparator, whose inputs are the received RF signal and a suitably designed dither signal. In the downlink, a binary RF waveform is generated at the CU via bandpass sigma-delta modulation. Our measurement results show that low error-vector magnitude (EVM) can be achieved in both the uplink and the downlink, despite 1-bit sampling at the CU. Specifically, for point-to-point over-cable transmission between a single user equipment (UE) and a CU equipped with a single RRH, we report, for a 10-MBd signal using single-carrier (SC) 16 quadratic-amplitude modulation (QAM) modulation, an EVM of 3.3% in the downlink, and of 4.5% in the uplink. We then consider a CU connected to three RRHs serving over the air two UEs, and show that, after over-the-air reciprocity calibration, a downlink zero-forcing precoder designed on the basis of uplink channel estimates at the CU achieves an EVM of 6.4% and 10.9% at UE 1 and UE 2, respectively. Finally, we investigate the ability of the proposed architecture to support orthogonal frequency-division multiplexing (OFDM) waveforms, and its robustness against both in-band and out-of-band interference.
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| 13. |
- Aabel, Lise, 1992, et al.
(author)
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Distributed Massive MIMO via all-Digital Radio Over Fiber
- 2020
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In: Conference Record - Asilomar Conference on Signals, Systems and Computers. - 1058-6393. ; 2020-November, s. 319-323
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Conference paper (peer-reviewed)abstract
- A crucial challenge in the implementation of distributed massive multiple-input multiple-output (MIMO) architectures is to provide phase coherence while, at the same time, limit the complexity of the remote-radio heads (RRHs), which is important for cost-efficient scalability. To address this challenge, we present in this paper a phase-coherent distributed MIMO architecture, based on off-the-shelf, low-cost components. In the proposed architecture, up- and down-conversion are carried out at the central unit (CU). The RRHs are connected to the CU by means of optical fibers carrying oversampled radio-frequency (RF) 1-bit signals. In the downlink, the 1-bit signal is generated via sigma-delta modulation. At the RRH, the RF signal is recovered from the 1-bit signal through a bandpass filter and a power amplifier, and then fed to an antenna. In the uplink, the 1-bit signal is generated by a comparator whose inputs are the low-noise-amplified received RF signal and a suitably designed dither signal. The performance of the proposed architecture is evaluated with satisfactory results both via simulation and measurements from a testbed.
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| 14. |
- Aaboen, Lise, 1978
(author)
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Business Incubators as Networks - How and Why?
- 2008
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In: Proceedings of ECEI 2008 The 3rd European Conference on Entrepreneurship and Innovation. - 9781906638153 ; , s. 1-8
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Conference paper (peer-reviewed)
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| 15. |
- Aaboen, Lise, 1978, et al.
(author)
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Capturing processes in longitudinal multiple case studies
- 2012
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In: Industrial Marketing Management. - : Elsevier BV. - 0019-8501. ; 41:2, s. 235-246
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Journal article (peer-reviewed)abstract
- This paper discusses and suggests a methodological approach to capture processes in multiple case studies. While single case studies may address processes in an inductive or abductive manner, multiple case studies entail a stronger need for analytical frameworks and methodological tools developed ex ante in order to maintain focus on the same phenomena across cases and over time. This is, however, difficult to pursue in studies that focus on processes. The aim of the paper is to suggest an approach to longitudinal multiple case studies. We use an example of an on-going multiple case study aiming at capturing the processes of strategizing in terms of how the networking of start-up companies interplays with their ideas of future network positions. The paper concludes by suggesting the use of a combination of narratives and network drawings. Network drawings can be instrumental in capturing the past, the present and the future at different points in time for the individual cases. Based on these descriptions, change patterns and how these evolve can be analyzed and compared across cases and over time.
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| 16. |
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| 17. |
- Aaboen, Lise, et al.
(author)
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Designing and Assessing Learning in Venture Creation Programs - Winner of Best Practitioner Development Workshop Award
- 2018
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Conference paper (other academic/artistic)abstract
- Workshop Summary In Venture Creation Programs the venture acts as a ‘learning vessel’, enabling what students need to learn - and more - given a greater or lesser extent of guidance. But how do we ensure that the students are engaging in ‘doing what they need to do’ in order to ‘learn what they need to learn’? In this workshop, participants will benchmark and crowdsource to identify and develop teaching tool prototypes for venture creation programs. Each ‘teaching tool’ consist of a learning objective, a combination of learning activities and an assessment suggestion. The workshop consists of two steps: the first is to capture learning activities from the entire group; then we divide into smaller groups where we develop them further into teaching tools. The teaching tools can later be used by the participants in their home university in order to package integrated venture activities so that the activities become aligned to the learning objectives.
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| 18. |
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| 19. |
- Aaboen, Lise, 1978
(author)
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Explaining incubators using firm analogy
- 2009
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In: Technovation. - : Elsevier BV. - 0166-4972. ; 29:10, s. 657-670
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Journal article (peer-reviewed)abstract
- Incubators are initiated to accelerate the development of new technology-based firms. Policy actors see them as a tool to initiate or revive innovativeness in regions and universities as a way to commercialize research results. However, even though the intended results of the incubator are good it is not known how the incubator should be managed and organized in order to achieve this end. When faced with a new type of organizations analogies can provide insights gathered from other contexts. To contribute to the further understanding of incubators this paper discuss the implications, in terms of highlighted dimensions and further clarifications needed when using the analogy of a firm. The paper uses empirical findings from six incubators. The discussion shows it is not clear who is the actual customer of the incubator. For example, can the policy actors that provide the funding to the incubator be seen as a customer paying for the service of regional revival and the NTBFs customers when their fees are not in relation to the services they are provided? In the discussion it is suggested that the incubator can have many customers with different value creation processes or no customers depending on the viewpoint taken.
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| 20. |
- Aaboen, Lise, 1978, et al.
(author)
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Exploring the roles of university spin-offs in business networks
- 2016
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In: Industrial Marketing Management. - : Elsevier BV. - 0019-8501 .- 1873-2062. ; 59, s. 157-166
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Journal article (peer-reviewed)abstract
- This paper identifies different university spin-off (USO) roles related to resource interaction among business parties. It does so by mapping how USOs become part of business networks in terms of their roles relative to other parties. The theoretical frame of reference focuses on roles and resource interaction based on an industrial network approach to business markets. The empirical research is based on five cases of USOs representing a variety in terms of technology, degree of newness, sector, and area of application. As a result of the analysis, three different roles are identified: the USO as resource mediator, resource re-combiner and resource renewer. These roles reflect how USOs adapt resources to, or require changes among, business parties' resources. The paper also discusses the main resource interfaces associated with the three roles and related challenges. The paper contributes to previous research through illustrating USOs' roles relative to business parties from a resource interaction point of view, and by pointing to the establishment of new companies in business networks as a way of implementing innovation. Finally, the paper discusses the managerial implications of the research in terms of the USO's need to understand which role to take and how to develop it.
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| 21. |
- Aaboen, Lise, 1978, et al.
(author)
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Incubator performance : An efficiency frontier analysis
- 2008
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In: International Journal of Business Innovation and Research. - 1751-0252 .- 1751-0260. ; 2:4, s. 354-380
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Journal article (peer-reviewed)abstract
- Assessments and evaluations of incubators has been a topic of discussion for as long as incubators have been in existence due to the fact that there has not been an agreement on how to determine good performance. This paper demonstrates the use of Data Envelopment Analysis (DEA) when studying performance of incubators. More specifically, it does so within the four dimensions of cooperation with universities, business networks, external funding and competence development on a sample of 16 Swedish incubators. We show that DEA enables us to measure non-numerical dimensions, and to simultaneously take into account the efforts made by both the incubator and the outcomes. Moreover, DEA provides benchmarks and, based on a model that divides the incubators into four different groups, illustrates the difference between the benchmark and the incubators' current situation.
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| 22. |
- Aaboen, Lise, 1978
(author)
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Incubators and incubation -Resources and activities in relation to different actors
- 2008
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Doctoral thesis (other academic/artistic)abstract
- ABSTRACTIncubators prepare new technology-based firms (NTBFs) for the obstacles ahead, they complement and develop the entrepreneurial ability of the firm founder, advise regarding financing, as well as providing structure and credibility to the firm. Incubators accelerate the development of the firms towards growth, create an entrepreneurial and innovative climate in the region, and contribute to the commercialization of research results from the university. There are many descriptions but still there remains the difficulty of understanding what an incubator is, and what it does. There is a great difference between incubators due to them having been formed in relation to different actors who have varying histories. Based on the appended papers the principal actors in relation to incubators are: the incubator, the NTBFs, the university, the policy actors and the financial actors. Moreover, the part played by the incubator differs depending on the roles in relation to the different actors, and they often have more than one role in relation to the same actor. Hence, the purpose of this thesis is to explore incubation in relation to different actors. The exploration includes five appended papers. Three of the papers focus on the role of the incubators when helping the NTBFs find and utilize resources. The three types of resources are knowledge, financing and relationships. The two remaining papers focus on the incubator as an organization with particular interest in value creation and efficiency. All five appended papers are written using the resource-based view. In the cover paper the findings in the appended papers are reflected upon using the industrial network approach in order to provide another perspective, focusing on relationships as opportunities leading to an understanding of incubators and incubation. In the cover paper principal actors, activities and resources are explored. The NTBFs are developed through the incubation with the help of resources contributed by the other actors. Additional to the development, the cover paper discussed other activities included in the incubation, i.e. mediation, innovation and acceleration. These activities enable actors to access and combine resources, within and across firm boundaries, that they would otherwise have difficulties combining at that point in time, as quickly or in that way. The relationships of the incubator enable mediation of contacts between actors who are otherwise reluctant to collaborate. Through these collaborations new resource combinations may be found. Resource combinations in already existing relationship can be found using experience from other relationships. In other words, the relationships of the incubator contribute to innovation among the actors. Furthermore, the relationships of the incubator contribute to the acceleration of the NTBFs’ development by being a trusted third party actor, and by contributing to the coordination of actors aiming at improving the innovative climate. Hence, relationships are a special kind of resource for the incubators. The importance of the relationships for the incubators implies that the critical issues might not be to pick NTBFs based on criteria for growth potential, but rather on the ability to form and develop relationships for themselves, as well as the NTBF, in order to develop the firm. Furthermore, arguments regarding the increasing homogeneity among Swedish incubators are based on the rather formalized relationships with the policy actors where incubators tend to play rather similar roles. The heterogeneity is likely to be perceived as larger from the perspective of relationships that are more context specific. Moreover, the relationships, activities and combination of resources cross-fertilize each other without a natural or manageable direction that cannot be controlled by one or a few of the actors involved. After the concluding discussion there is a retrospection of the development of the thesis and the empirical material, which is based on qualitative and quantitative data that has been gathered within the Swedish incubator program mainly during 1999, 2005 and 2006.
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| 23. |
- Aaboen, Lise, 1978
(author)
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Incubators and new technology-based firms - A resource-based view of development
- 2006
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Licentiate thesis (other academic/artistic)abstract
- New technology-based firms (NTBFs) are based upon the exploitation of a new technology. This often means that there are few other than the founder who understands the technology, and in addition the firm often aims at serving a market in a new way or operating on a presently non-existent one. Therefore, it can be hard to determine the future potential of NTBFs, and this causes growth constraints on the firm. However, the NTBFs that do survive contribute to industrial and regional growth on a long-term perspective through, for example, knowledge spillovers as well as finding and developing product concepts. The incubator on the other hand can be seen as a provider or mediator accelerating the development of promising NTBFs. As a provider the incubator mobilizes resources and adjusts them to the needs of the particular NTBF. The mediator role can instead be seen when the incubator connects the NTBF to members of the incubators external network.The basis of the resource-based view is that a competitive advantage comes from the heterogeneity in terms of resources between firms. Imitability of valuable resources makes the competitive advantage sustainable. The newness of the NTBFs implies that they are in the process of trying to obtain or develop their resources. These resources include capabilities that determine how well the organization is able to perform a certain task. Furthermore, resources like funding, patenting, human resources and intangible resources are needed. Similarly, the incubator benefits from knowledge workers, funding and continuous improvements of the knowledge base in order to serve the NTBFs and maintain fruitful external relations. Consequently, this thesis has the purpose of exploring how the obtaining of resources link incubators and NTBFs. This exploration includes three papers in which the first two are devoted to the incubator, and the NTBFs respectively, in order to understand the resource needs of these two types of organizations. However, the third paper focuses on the links between the incubator and the NTBF in terms of providing links to external actors. Further, the exploration includes empirical findings from both qualitative and quantitative data that have been gathered within the Swedish incubator program during 1999 and 2005. The concluding discussion suggests that the human and knowledge resources of the incubator increase the external resources and the capabilities of the NTBFs. A successful NTBF in turn improves the human and knowledge resources of the incubator through knowledge sharing and an increased reputation. An increased survival rate of NTBFs will also positively affect the public funding of the incubator. It is in this way that a positive spiral is created where the resources of the incubator accumulate as more and more successful NTBFs are generated. Failing NTBFs will, on the other hand, also make it more difficult for the incubator to obtain and maintain resources. Seeing the connections between incubators and NTBFs in this way further emphasizes the element of path dependency in the development of these organizations. Subsequently, there is also a long-term aspect of the expected results on regions and industries from public investments made in them.
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