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Gjovik, Norway

Gjøvik University College is a university college in Norway. Wikipedia.

Farup I.,Gjovik University College
Optics Express | Year: 2014

It is well established from both colour difference and colour order perpectives that the colour space cannot be Euclidean. In spite of this, most colour spaces still in use today are Euclidean, and the best Euclidean colour metrics are performing comparably to state-of-the-art non-Euclidean metrics. In this paper, it is shown that a transformation from Euclidean to hyperbolic geometry (i.e., constant negative curvature) for the chromatic plane can significantly improve the performance of Euclidean colour metrics to the point where they are statistically significantly better than state-of-the-art non-Euclidean metrics on standard data sets. The resulting hyperbolic geometry nicely models both qualitatively and quantitatively the hue super-importance phenomenon observed in colour order systems. © 2014 Optical Society of America. Source

Gebremedhin A.,Gjovik University College
Renewable and Sustainable Energy Reviews | Year: 2014

Global warming is one of the most important issues to handle in the energy sector, due to the high CO2 emissions from fossil fuel based power plants. The district heating sector can play a significant role in reducing the emissions. This, however, depends on how efficiently current and future heat demands are used as a heat sink. This paper presents the results of a model study of a district heating system (DHS). As a case study, a local DHS in a town in Sweden has been modelled using a linear programming method. The electricity generation system in northern Europe is also modelled in simplified way to serve as an input. The purpose of this study and modelling in this way is to answer the questions concerning the choice of technology solutions and fuels from an economic and an environmental point of view where the focus is on the local DHS. The main objective is to study the impact of different levels of biomass prices and emission allowances on the choice of fuels and production technologies (no other taxes, fees or any kind of subsidy are considered). The results show that low biomass prices along with high emission costs promote investment in biomass-based cogeneration. However, this would mean that the market price of existing renewable incentives and CO2 cost must be higher than the current level. Furthermore, biomass as it is used now in traditional CHP system is not system optimal. In an integrated system, plants with high electrical efficiency provide better economy and lower emissions of global CO2 than solutions based on traditional biomass CHP. The need for a system solution where the heat demand is used efficiently is seen in facilities with high electrical efficiency. © 2013 Elsevier Ltd. All rights reserved. Source

Holtskog H.,Gjovik University College
Procedia CIRP | Year: 2013

Continuous Improvement is seen as a cornerstone in Lean Thinking, but the improvement process of operations has been done long before Lean entered companies' agenda. This paper will draw the historical line of continuous improvement in one of Norway's most important automotive industry clusters, where continuous improvement has been an issue over decades. A survey of over 600 respondents shows that continuous improvement is felt like a natural part of the tasks in the daily work-life. But there are differences of what is so natural according to what role a person has in the companies. Similar there are differences between companies in what continuous improvement actually is done when the companies are in the same industry. These results show that the simplified notion of continuous improvement is far from simple and has a cultural foundation in which the Lean tradition speaks little about. Workers union involvement is crucial for success of improvements at the factory floor. This argument will have the Nordic work-life model as a back-drop and help to explain how to deal with cultural foundation in highly automated production lines. © 2013 The Authors. Source

Hofmann B.,Gjovik University College
American Journal of Bioethics | Year: 2010

Bariatric surgery is effective on short- and medium-term weight loss, reduction of comorbidities, and overall mortality. A large and increasing portion of the population is eligible for bariatric surgery, which increases instant health care costs. A review of the literature identifies a series of ethical challenges: unjust distribution of bariatric surgery, autonomy and informed consent, classification of obesity and selecting assessment endpoints, prejudice among health professionals, intervention in people's life-world, and medicalization of appearance. Bariatric surgery is particularly interesting because it uses surgical methods to modify healthy organs, is not curative, but offers symptoms relief for a condition that it is considered to result from lack of self-control and is subject to significant prejudice. Taking the reviewed ethical issues into account is important when meeting persons eligible for bariatric surgery, as well as in the assessment of and decision making on surgery for obesity. © Taylor & Francis Group, LLC. Source

The aim of the study was to describe family members' experiences of content, structure, and approach of a potential intervention including a support group program for family members of persons with life-threatening illness. The study was a pilot project in a developmental phase in which a potential intervention, a support group program, was investigated. The design of the study was qualitative descriptive. Twenty-nine family members were interviewed by telephone after taking part in the program. The interviews were analyzed using qualitative content analysis. The results indicate that the support group program could work as an acceptable and useful intervention for family members. The program was experienced to cover topics of immediate interest reflecting life close to severely ill persons. The structure of the program was found to be inviting, offering an opportunity to establish relationships with other participants and the caring team in a warm atmosphere. The study indicates the importance of health professionals inviting and interacting with family members during ongoing palliative care. The results could inspire nursing staff to initiate, develop, and deliver similar interventions. Source

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