Essays about: "SAFETY CALCULATIONS"

Showing result 11 - 15 of 129 essays containing the words SAFETY CALCULATIONS.

  1. 11. Evaluation of the DXA radiation environment at Sahlgrenska University Hospital

    University essay from

    Author : Saga Söderholm; [2022-05-18]
    Keywords : Medical physics; DXA; DEXA; Dual-energy X-ray absorptiometry; Bone mineral density;

    Abstract : Purpose: The aims of this work were to evaluate the radiation environment in the dual-energy X-ray absorptiometry (DXA) rooms at Sahlgrenska University Hospital, estimate personnel doses, determine legal requirements for DXA personnel, examine the operators’ view on radiation safety and develop material with dose information for patients and operators. Theory: DXA is a low dose X-ray modality mainly used in osteoporosis examinations, for which it is considered the reference technique. READ MORE

  3. 12. Reliability Based Classification of Transitions in Complex Semi-Markov Models

    University essay from KTH/Matematisk statistik

    Author : Francesco Fenoaltea; [2022]
    Keywords : Semi-Markov process; reliability engineering; stochastic process; autonomous vehicles; semi-markovprocessen; tillförlitlighetsteknik; stokastisk process; autonoma fordon;

    Abstract : Markov processes have a long history of being used to model safety critical systems. However, with the development of autonomous vehicles and their increased complexity, Markov processes have been shown to not be sufficiently precise for reliability calculations. READ MORE

  4. 13. Mechanical design guidelines and criteria for mooring components in wave energy devices : Finding the optimum chain and shackle parameters

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Arvin Modiri; [2022]
    Keywords : Chain; shackle; finite element method; wave energy converter; WEC; Kedja; kätting; schackel; finita element metoden; vågkraftverk;

    Abstract : Obtaining the perfect renewable energy source is one of the most important questions of our lifetime. One renewable energy source that could be of interest in this question because of the characteristics of the power that could be extracted from it is wave energy. READ MORE

  5. 14. Life cycle analysis and comparison of climate impact for two alternative floor systems for increased weight in high-rise timber buildings

    University essay from KTH/Byggnadsmaterial

    Author : Nir Kedem; [2022]
    Keywords : Life cycle assessment; LCA; Anavitor; Environmental impact; Building materials; Timber; Concrete; Gravel; Adding weight system.;

    Abstract : The aim of this Master Thesis is to investigate and quantify the climate impact for two floor system alternatives for the Cederhusen project, that is the 8 floors timber-based buildings located at Sankt Eriksplan in Stockholm. The overall motivation for this study is the fact that the construction industry is a major contributor to the total amount of the global greenhouse gas emissions. READ MORE

  6. 15. Dynamic Synthesis of Pilot Actions for Multiple Faults during Flight

    University essay from Linköpings universitet/Medie- och Informationsteknik; Linköpings universitet/Tekniska fakulteten

    Author : Louise Nilsson; Malin Rahm; [2022]
    Keywords : ;

    Abstract : In today’s JAS 39 Gripen E there is a central system that collects all failures that occur in the aircraft. Complex failures often generate multiple simultaneous alerts. This makes it difficult for the pilot to get an overview of the active alerts. Each alert has a number of actions that the pilot must handle. READ MORE