Aalesund University College is a medium sized institution of higher education in Norway with more than 2000 students and approximately 150 employees.AAUC was founded in 1994 as a result of the reorganisation of professional higher education in Norway. Three former colleges in Aalesund, the College of Marine Studies, the College of Engineering and Aalesund College of Nursing were then merged into one institution.The college is divided into five faculties: Faculty of Health science Faculty of International Marketing Faculty of Life science Faculty of Engineering and Natural science Faculty of Maritime Technology and Operations↑ Wikipedia.
Shaker H.R.,Aalesund University College |
Tahavori M.,University of Aalborg |
Tahavori M.,Imperial College London
IEEE Transactions on Automatic Control | Year: 2014
In this technical note, a new method for model reduction of bilinear systems is presented. The method is developed in particular for many applications in which one is interested to approximate a system in a given frequency-interval. To this end, new generalized frequency-interval gramians are introduced for bilinear systems. It is shown that these gramians are the solutions to the so-called frequency-interval generalized Lyapunov equations. The conditions for these equations to be solvable are derived and an algorithm is proposed to solve such equations iteratively. The method is further illustrated with the help of an illustrative example. The numerical results show that the method is more accurate than its previous counterpart which is based on the ordinary gramians. © 1963-2012 IEEE.
Shaker H.R.,Aalesund University College |
Shaker F.,Islamic Azad University at Kazeroon
Journal of Process Control | Year: 2014
An appropriate control configuration selection is identified as one of the key prerequisites for attaining the control objectives in industrial practices. To select a suitable control configuration, it is important to determine which variables should be measured and how the process should be actuated. Therefore, the first step is to determine the optimal locations for the sensors and actuators. For the multivariable processes, this step is followed by choosing the appropriate input and output pairs for the design of SISO (or block) controllers. This is due to the popularity of the distributed and decentralized control in industrial control systems. These issues, which have been studied extensively for deterministic systems, have not been closely studied for stochastic systems. In this paper however the problem of control configuration selection is studied for the linear stochastic systems. The problem of selecting the sensor locations for stochastic systems is viewed as the problem of maximizing the output energy generated by a given state and for the actuator locations is viewed as the problem of minimizing the input energy required to reach a given state. Furthermore, a gramian-based interaction measure for control structure selection of multivariable stochastic systems is proposed. This interaction measure can be used to propose a richer (sparse or block diagonal) controller structure for distributed and partially decentralized control. © 2013 Elsevier Ltd.
Tveten A.-K.,Aalesund University College |
Sjastad K.K.,Aalesund University College
Vector-Borne and Zoonotic Diseases | Year: 2011
Ticks harbor a complex microbial population, which they acquire while feeding on a variety of mammalians and birds. Zoonotic diseases transferred by ticks are an increasing problem and have become a burden to the community. 16S rDNA amplification and denaturing gradient gel electrophoresis (DGGE) enables detection of the broad spectrum of bacteria that settles in the ticks. Profiling the complete microbial population in ticks may provide a better understanding of the ticks' potential to harbor and disperse pathogens. Separation of pathogenic species by DGGE is based on variation in %GC content within the 16S rDNA genetic region. Sequencing of these fragments allows identification of bacterial species. Present study identified some well-known tick-infecting bacteria, such as members of genus Borrelia, Rickettsiales, and Pseudomonas, but also less described tick-infecting bacteria such as Rhodococcus erythropolis, Spiroplasma spp., and an endosymbiont of the microarthropod Folsomia candida. This is the first report of Segniliparus rugosus-infected Ixodes ricinus ticks. Also, it is the first report of several of these pathogens in the Norwegian tick population. © Copyright 2011, Mary Ann Liebert, Inc.
Shaker H.R.,Aalesund University College |
Shaker F.,Islamic Azad University
Nonlinear Dynamics | Year: 2014
This paper deals with the stability of continuous-time multidimensional nonlinear systems in the Roesser form. The concepts from 1D Lyapunov stability theory are first extended to 2D nonlinear systems and then to general continuous-time multidimensional nonlinear systems. To check the stability, a direct Lyapunov method is developed. While the direct Lyapunov method has been recently proposed for discrete-time 2D nonlinear systems, to the best of our knowledge what is proposed in this paper are the first results of this kind on stability of continuous-time multidimensional nonlinear systems. Analogous to 1D systems, a sufficient condition for the stability is the existence of a certain type of the Lyapunov function. A new technique for constructing Lyapunov functions for 2D nonlinear systems and general multidimensional systems is proposed. The proposed method is based on the sum of squares (SOS) decomposition, therefore, it formulates the Lyapunov function search algorithmically. In this way, polynomial nonlinearities can be handled exactly and a large class of other nonlinearities can be treated introducing some auxiliary variables and constrains. © 2013 Springer Science+Business Media Dordrecht.
Aasen E.M.,Aalesund University College |
Kvangarsnes M.,Aalesund University College |
Heggen K.,Volda University College
Scandinavian Journal of Caring Sciences | Year: 2012
Aim: A patient's right to influence treatment and health care has been guaranteed by Norwegian law since 1999. The aim of this study was to explore how elderly patients with end-stage renal disease who are undergoing treatment with haemodialysis for the rest of their lives perceive patient participation in a dialysis unit. Methods: This study, which was inspired by critical discourse analysis, drew on data derived from transcribed interviews with 11 patients. Findings: Two discourses related to patient participation were identified. The first and dominant discourse was called the health-care team's power and dominance. Both environmental conditions and the team's practice exercised power and control over the patients. The patients trusted the health-care team, but some felt powerless and were afraid of what might happen if they refused to follow the instructions. The health-care team owned the knowledge and decided what the patients needed to know. Most of all the patients wanted dialogue about the future. After years of treatment, patient identity seemed to be threatened by this situation. The second discourse is called the patients struggling for shared decision-making. Some patients struggled to be involved in decision-making about 'dry weight', diet, blood access and time of treatment when these factors threatened their well-being and the quality of their daily lives. Conclusions: The elderly patients' right to participate in their haemodialysis treatment did not seem to be well incorporated into the social practices of haemodialysis units. Changing the social practices in the dialysis units from a paternalistic ideology to an ideology of participation will require consideration of the context, the dialogue and the process of shared decision-making with the patient. © 2011 The Authors. Scandinavian Journal of Caring Sciences © 2011 Nordic College of Caring Science.
Leydesdorff L.,University of Amsterdam |
Strand O.,Aalesund University College
Journal of the American Society for Information Science and Technology | Year: 2013
Based on the complete set of firm data for Sweden (N = 1,187,421; November 2011), we analyze the mutual information among the geographical, technological, and organizational distributions in terms of synergies at regional and national levels. Using this measure, the interaction among three dimensions can become negative and thus indicate a net export of uncertainty by a system or, in other words, synergy in how knowledge functions are distributed over the carriers. Aggregation at the regional level (NUTS3) of the data organized at the municipal level (NUTS5) shows that 48.5% of the regional synergy is provided by the 3 metropolitan regions of Stockholm, Gothenburg, and Malmö/Lund. Sweden can be considered a centralized and hierarchically organized system. Our results accord with other statistics, but this triple helix indicator measures synergy more specifically and quantitatively. The analysis also provides us with validation for using this measure in previous studies of more regionalized systems of innovation (such as Hungary and Norway). © 2013 ASIS&T.
Thakur V.,Aalesund University College
International Journal of Geotechnical Engineering | Year: 2013
A slip surface or shear band orientation of 45° from the minor principal stress is obtained when contractant clays are numerically analyzed while assuming undrained conditions. This orientation occurs because the shear band is modeled as undrained and with no volume change. However, thin shear bands induce the dissipation of pore water to the outside body, and depending on the degree of local drainage, the incipient shear bands are then no longer at 45°. In drained conditions, the incipient shear band inclination to the minor principal stress is controlled by the friction angle, the dilatancy angle or a combination of both. This paper examines the orientation of a developing shear band, accounting for the effects of local pore water pressure flow away from the shear band to investigate whether the orientation of the band is controlled by the degree of drainage (i.e. volume change) or the mechanisms of shear band orientation under fully drained conditions. The numerical results show that the band's inclination can be >45° for globally undrained contractant clays sheared at rates of ≤10%/h, rates that are normal in laboratory testing. © 2013 W. S. Maney & Son Ltd
Tveten A.-K.,Aalesund University College
Scandinavian Journal of Infectious Diseases | Year: 2013
Objectives: Over a 3-y period, Ixodes ricinus ticks were randomly collected to study the prevalence of 4 Borrelia species: B. burgdorferi sensu stricto, B. afzelii, B. garinii and B. valaisiana. While B. burgdorferi s. s., B. afzelii, and B. garinii have been associated with human borreliosis in Norway for several years, B. valaisiana was reported in a Norwegian tick for the first time in 2010. Methods: A real-time polymerase chain reaction (qPCR) was developed as an easy-to-use method, with high sensitivity and specificity, to detect and genospecies-type B. burgdorferi s. s., B. afzelii, B. garinii, and B. valaisiana in I. ricinus ticks. A combination of species-specific primers and TaqMan MGB probes labelled with fluorescents with different emission spectra, ensured a highly specific method with the potential to detect more than 1 genospecies in 1 run. Sequencing of the housekeeping gene recG from 48 Borrelia-positive samples was used to confirm specificity. Denaturing gradient gel electrophoresis profiling of tick-borne bacteria was used to help optimize the assay sensitivity. Results: The qPCR assay was applied to analyze 1808 I. ricinus ticks collected in the field, which resulted in an overall infection rate of 14.8%, 18.7%, and 14.3% in 2010, 2011, and 2012, respectively. The majority of the Borrelia-infected ticks were infected with B. afzelii. Conclusions: The overall infection rate is somewhat lower than that reported in the most recent study of the infection rate in southern Norway in 2010, and this study indicates that the infection rate varies from one year to another. © 2013 Informa Healthcare.
Havold J.I.,Aalesund University College
Safety Science | Year: 2015
This paper reports result from a survey on 157 navigators (bridge officers) from eight offshore companies operating in the North Sea. The questionnaire measured stress, work pressure and sleep/rest (fatigue). Sleep/rest and work pressure explained around 35% of the variation in stress. Work pressure increases stress, and sleep and rest reduce stress both directly and through reduced work pressure. A positive work climate/supportive culture reduces stress on the bridge substantially through reducing work pressure and improving sleep and rest quality. The research indicates that age and the length of time that respondents have been seafarers do not have any influence on stress. However, a significant difference at the 10% significance level was found in relation to occupation (between first mate and other navigators). Around 30% of the respondents reported unsatisfactory sleep and rest during a normal day. More than 10% of the respondents reported that senior management was not interested in their health and safety, and more than 15% of the officers reported that they took short cuts to get their work done. © 2014 Elsevier Ltd.
Agency: European Commission | Branch: FP7 | Program: CSA-CA | Phase: REGIONS-2012-2013-1 | Award Amount: 2.03M | Year: 2012
The European Clusters for Offshore Wind Servicing (ECOWindS) project builds on existing network within offshore wind energy to establish cluster cooperation in Offshore Wind Servicing (OWS) encompassing the industrial processes; assembly and installation of offshore wind turbines and operation and maintenance of wind turbines offshore. ECOWindS is a collaboration between research-driven clusters from South Denmark, East of England, North-West Germany and Mre, Norway , are- regions that are absolute hotspots for the worlds offshore wind industry. While the regions are characterised by complementary strengths and potential, they all face common challenges and bottle-necks that could best be dealt with within a cross-regional collaborative framework. The objective of the project is to develop and integrate regional OWS research agendas and smart specialisation strategies in a Joint Action Plan, enabling intensified intra- and interregional research and innovation-driven cooperation to ensure a more focused and efficient use of regional, national and EU Structural and RTD funds. Special will be devoted to how to better develop, include and utilize the competencies and knowledge of SMEs into innovation processes within the OWS sector. The ECOWINDS project runs through three successive and partly overlapping phases: (1) Analysis and integration of research agendas of actors in regional clusters; (2) Initiatives to improve integration: definition of a Joint Action Plan, including an International Cooperation Strategy and a Smart Specialisation Toolkit; (3) Measures towards the implementation of the Joint Action Plan. The implementation of ECOWindS and the exploitation of the results will foster smart, sustainable regional growth and job creation by contributing to drive down cost of energy from existing offshore wind farms and to half the cost of energy from new installations on comparable sites before 2020.