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An increasing number of market- and technology-driven software development companies face the challenge of managing several thousands of requirements written in natural language. The large number of requirements causes bottlenecks in the requirements management process and calls for increased efficiency in requirements engineering. This thesis presents results from empirical investigations of usi
Modeling and simulation are established techniques for solving design problems in a wide range of engineering disciplines today. Dedicated computer languages, such as Modelica, and efficient software tools are available. In this thesis, an extension of Modelica, Optimica, targeted at dynamic optimization of Modelica models is proposed. In order to demonstrate the Optimica extension, supporting sof
Empirical studies focusing on the subjective experience of health among patients in contact with the mental health services are rare and most questionnaires are based on a medical model that emphasizes objectively observed disease-oriented health indicators. In studies I and II perceptions of the concept of health among patients and nurses in mental health services were explored and described usin
This thesis proposes the use of two concepts: accessibility and chemical activity. Accessibility describes the mass quantity of PAHs that is or can become available within a given time span and under given conditions. Chemical activity quantifies the energetic state of the PAHs that determines the potential for spontaneous physicochemical processes, such as diffusion and partitioning. Chemical act
Syftet med denna studie var att undersöka hur fastanställda på den svenska arbetsmarknaden upplever att de påverkas av ett chefsbyte. Undersökningen analyserar betydelsen det kan ha för den anställda samt vilka faktorer som kan påverka och orsaka ett negativt eller positivt upplevt chefsbyte. Detta skulle kunna vara något de flesta företag skulle ha användning av vid ett chefsbyte, vilket gör ämne
China would become one of the major economies in the world which has great market potential. The Chinese outdoor industry is on its rapid pace of blooming since Chinese people start to care about health and get to know more about various kinds of outdoor activities. Chinese outdoor market becomes a very attractive place for local and foreign outdoor firms to explore. However, China’s situation is
I många svenska hem finns den bruna papperspåsen som matavfallet ska slängas i, men hur många gånger har du inte blivit trött på att den droppar och luktar illa? Ibland kan det kännas lättare att slänga matavfallet i restavfallet för att slippa dessa problem, men det är viktigt att matavfallet sorteras ut för miljöns skull. Därför utvecklas tekniker som kan göra det lättare för dig att sortera mat
