Arctic University of Norway


Arctic University of Norway

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Polanco G.,Arctic University of Norway
2016 International Symposium on Small-Scale Intelligent Manufacturing Systems, SIMS 2016 | Year: 2016

Review on control process studies and teaching methods shows that majority of the scenarios presented and discussed correspond to restricted operation conditions. So, wider and deeper understanding of the interaction between different variables of the actual system is required in order to enhanced the knowledge of new professionals. This work presents the fluid interaction of three flow streams and their characteristics inside a continuous stirred heated tank (CSHT) when it is assumed that characteristics at the exit stream are the same as the characteristics inside the CSHT. Novelty of this work is fact that all four variables: temperature, composition, liquid level inside the tank and mass flow are considered simultaneously for the three streams. Model combines all three governing equations; mass, species and energy conservation laws, for a constant section area tank using MatLab Simulink ®. Discharge velocity follows Torricelli's law. Model main constrains is defined by the assumption of having density and specific heat capacity as constants. The behaviour of the system can be determined successfully by the developed model. Interconnected temperature, exit mass flow, volume and concentration are determined. © 2016 IEEE.

Mustafa M.Y.,Arctic University of Norway
2016 International Symposium on Small-Scale Intelligent Manufacturing Systems, SIMS 2016 | Year: 2016

The design of the fuel cell plays a major role in determining their cost. It is not only the cost of materials that increases the cost of the fuel cell, but also the manufacturing techniques and the need for skilled technicians for assembling and testing the fuel cell while manufacturing. The main aim of this work is to present a conceptual design of a fuel cell with the purpose of reducing the cost of production through using conventional materials and more effective production techniques, then testing the fuel cell to validate its performance. Small-scale intelligent manufacturing system (SIMS) can be associated with the proposed concept to reduce the cost of the fuel cell. © 2016 IEEE.

Karterud H.N.,University of Oslo | Risor M.B.,Arctic University of Norway | Haavet O.R.,University of Oslo
Seizure | Year: 2015

Purpose: This qualitative study explored the impact of using a biopsychosocial approach to explain the diagnosis of non-epileptic seizures (NES). Methods: Semi-structured interviews of eleven adolescents and young adults who had participated in an inpatient follow-up stay of the diagnosis were used. The interviews were taped, transcribed, and analysed using systematic text condensation. Results: Three key themes were identified: 1. "Threatened self-image": Patients initially perceived their diagnosis as being purely psychological. As they did not accept that they had mental disorders, they interpreted this as frightening and threatening, and resisted the diagnosis. 2. "Being believed and belief in oneself": Participants had many experiences of being suspected by healthcare providers of staging their seizures. Some had even begun to have doubts themselves as to whether the attacks were voluntary or not. Explaining that unconscious processes are involved in NES contributed towards increasing patients' feelings of being believed, and thereby acceptance of the diagnosis. 3. "Getting an explanation that makes sense": Some participants identified connections between their personal histories and their seizures and became seizure-free. Others found that the explanatory models gave personal meaning, but did not become seizure-free, while a few continued to doubt whether NES was the correct diagnosis. Conclusion: Being believed was the most elemental factor for coping with the condition. Using a biopsychosocial approach to explain the diagnosis may facilitate identification with the explanatory models, and thus acceptance of the diagnosis. © 2014 Published by Elsevier Ltd on behalf of British Epilepsy Association.

Widstrom E.,Finnish National Institute for Health and Welfare | Tillberg A.,University of Tromsø | Byrkjeflot L.I.,Arctic University of Norway
British Dental Journal | Year: 2016

Objective and setting In Norway, the Public Dental Service (PDS) caters for the young (<19 years) and smaller numbers of adults, mostly special needs patients. This study surveyed chair-side preventive measures used in the public clinics and compared them with recommendations in evidence-based guidelines in the neighbouring countries.Materials and methods After ethical approval, the regional Chief Dental Officers (CDOs) emailed questionnaires to their local clinics (N = 421) where the most experienced dentist and dental hygienist were asked to respond on behalf of the clinic. Answers were received from 256 clinics (response rate 61%). Altogether, 215 dentists and 166 dental hygienists answered.Results Of the respondents, 26% reported that their clinic had agreed guidelines on preventive treatment to be used by all staff. Oral hygiene and fluoride toothpaste recommendations were considered appropriate. Almost 60% claimed that flossing instructions were given to all children and adolescents and 40% that fluoride varnish was used on all the young. Fissure sealants were used after individual assessment (80%). A third of the respondents claimed that fluoride tablets and fluoride rinse were recommended for all or most children and fluoride rinses for adults, even in addition to regular use of fluoride toothpaste. Dental hygienists used all methods more often than dentists. On adults, preventive measures were more often used on individual assessment. Half (48%) of the respondents were interested in new evidence-based national guidelines on preventive care.Conclusions Chair-side preventive treatment measures were numerous in the well-resourced Norwegian PDS, but partly outdated. © 2016 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

Kostopoulos D.,University of Stavanger | Gudmestad O.T.,University of Stavanger | Barabadi A.,Arctic University of Norway
Proceedings of the International Offshore and Polar Engineering Conference | Year: 2016

Cold regions have their unique hazards such as hypothermia and frostbite. Hence, these hazards must be taken into account very early in the design phase. Moreover, risk analysis approaches should be updated to take into account the specific hazards of the Cold Climate region. There can be a high dependence between different cold region hazards and a combination of failures can happen during an extreme weather phenomenon. Therefore, the assumptions of independence among the risk factors must be critical examined and the chain of events should be more focused. Sometimes, increasing the reliability will lead to more complex designs. Adding to the complexity of the system, could cause the human error to be increased significantly. Hence, increasing the reliability of a plant or a process by adding complexity, does not necessarily lead to increasing the safety. In this study an analysis of the reliability of a ventilation system in a moderate climate region is used as reference case for a risk analysis of a winterized ventilation system in a Cold region. In the analyses, performance-shaping factors are assessed, stressing the need of a risk analysis in which human and environmental factors are especially examined. © Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).

Yitayew T.G.,Arctic University of Norway | Ferro-Famil L.,University of Rennes 1 | Eltoft T.,Arctic University of Norway
International Geoscience and Remote Sensing Symposium (IGARSS) | Year: 2015

In this paper we present experimental results relative to the vertical structure of snow covered lake ice and sea ice, sensed with X-band radar system operated in a tomographic configuration. The available data are from a Ground-Based SAR campaign carried out over Prestvannet frozen lake and Kattfjord, both in Tromsø, Norway. Direct imaging of the vertical structures of the snow and ice layers is achieved by focusing the signal from a 2D synthetic array in the 3D space. By making use of a priori information about the depth of snow and ice, the refractive index of snow and sea ice/lake ice is estimated from a single polarization tomographic measurement, and the results are in good agreement with previous experimental results. We have also shown that air bubbles in low salinity ice are the main contributors for the backscatter signal from ice. © 2015 IEEE.

Pedersen R.,University of Tromsø | Pedersen R.,Arctic University of Norway | Ulriksen G.-H.,University of Tromsø | Ellingsen G.,Arctic University of Norway
Studies in Health Technology and Informatics | Year: 2015

This paper is a status report from a large-scale openEHR-based EPR project from the North Norway Regional Health Authority. It concerns the standardization of a regional ICT portfolio and the ongoing development of a new process oriented EPR systems encouraged by the unfolding of a national repository for openEHR archetypes. Subject of interest; the contextualization of clinical templates is governed over multiple national boundaries which is complex due to the dependency of clinical resources. From the outset of this, we are interested in how local, regional, and national organizers maneuver to standardize while applying OpenEHR technology. © 2015 The authors and IOS Press.

Silsand L.,University Hospital of Northern Norway | Ellingsen G.,Arctic University of Norway
Proceedings of the ACM Conference on Computer Supported Cooperative Work, CSCW | Year: 2016

Clinical Decision Support (CDS) Systems are considered crucial for diagnosis, treatment and care of patients. However, practical benefits of such systems have been far below expectations. This paper explores how the evolving interdependencies in organizational, clinical, political, and behavioral terms influence the design and implementation of CDS. The paper discusses how these interdependencies complicate clinical use of CDS where cross-departmental patient pathways increasingly dominate approaches to dealing with patients with complex conditions. Empirically, we report from an acute geriatric patient pathway project. The aim was to design and implement a decision-support form for triage of elderly patients in the emergency unit. The study emphasizes the intertwined collaborative nature of healthcare work, and the resulting need to consider the whole context when designing and implementing CDS tools. The contribution is to emphasize the "extended design" perspective to capture how workplace technologies and practices are shaped across multiple contexts and prolonged periods. © 2016 ACM.

Fisheries operate under fluctuating environmental conditions, targeting fish stocks that appear in varying densities in different areas, often with abrupt and unexpected local changes. Physical conditions, markets and management regulations constrain vessels in different and varying ways. These factors all contribute to forming the fleet diversity we find in most fisheries. Here, a simulation model of the Northeast Arctic cod fishery is used in order to investigate how this diversity is formed and maintained, assuming rational economic behaviour under varying combined constraints. The study also focuses on how the ability of vessels to find fish influences fleet diversity, profitability, stock development and seasonal profiles of the fishery. Results indicate that an increased ability to target the most profitable fishing grounds may influence fleet diversity positively or negatively, depending on overall exploitation level. High exploitation rates also increase the temporal fluctuations in fleet diversity and profits, which are amplified as the fish-finding ability increases. © 2016 Eide.

Ellingsen G.,Arctic University of Norway
Advances in Intelligent Systems and Computing | Year: 2015

For several years, telemedicine practitioners have struggled to establish their field as an autonomous scientific discipline, which is often reflected in diverging definitions of what telemedicine is. However, the telemedicine community depends on and draws heavily on established scientific areas such as medicine, economics, informatics and social science, which each have their own criteria for good scientific work. In addition, new technological innovations appear to pave the way for new applications within the field, thus challenging perceptions of what the field encompasses. The aim of this paper is to contribute to this debate by conceptualizing the notion of telemedicine as being something people do rather than numerous definitions of what the field is. © Springer International Publishing Switzerland 2015.

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