B
Bengt Johansson
Researcher at Umeå University
Publications - 647
Citations - 22112
Bengt Johansson is an academic researcher from Umeå University. The author has contributed to research in topics: Combustion & Homogeneous charge compression ignition. The author has an hindex of 66, co-authored 635 publications receiving 19206 citations. Previous affiliations of Bengt Johansson include Lund University & Chalmers University of Technology.
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Journal ArticleDOI
The geopolitics of metals and metalloids used for the renewable energy transition
André Månberger,Bengt Johansson +1 more
TL;DR: In this article, the authors examined the role of 14 metals and metalloids needed for renewable energy technologies, focusing on three factors with potential geopolitical importance: the geographic concentration of resources, potential revenues of resources rich countries and the size of total global markets.
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ENT COBRA (Consortium for Brachytherapy Data Analysis): interdisciplinary standardized data collection system for head and neck patients treated with interventional radiotherapy (brachytherapy)
Luca Tagliaferri,György Kovács,Rosa Autorino,Ashwini Budrukkar,Jose Luis Guinot,Guido Hildebrand,Bengt Johansson,Rafael Martinez Monge,Jens E. Meyer,Peter Niehoff,Angeles Rovirosa,Zoltán Takácsi-Nagy,Nicola Dinapoli,Vito Lanzotti,Andrea Damiani,Tamer Soror,Vincenzo Valentini +16 more
TL;DR: COBRA C-SS seems to be well accepted by all involved parties, primarily because it does not influence the center's own data storing technologies, procedures, and habits and preserves the privacy of all patients.
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Double Compression Expansion Engine Concepts: A Path to High Efficiency
TL;DR: In this paper, a combustion engine with a two-stage compression and expansion cycle is presented, where the HP cycle is designed similar to today's turbocharged diesel engine but with an even higher boost pressure, resulting in high peak cylinder pressure.
Proceedings ArticleDOI
A Physical Two-Zone NOx Model Intended for Embedded Implementation
TL;DR: An algorithm which can be used to compute NOx emissions is presented and the intended contribution of the paper is a NOx model, implementation feasible for an embedded system, e.g. embedded processor or embedded electronic hardware (FPGA).
Journal ArticleDOI
Naphtha vs. dieseline – The effect of fuel properties on combustion homogeneity in transition from CI combustion towards HCCI
TL;DR: In this paper, the effect of physical properties on combustion homogeneity when moving from homogenized charge compression ignition (HCCI) to compression ignition combustion is studied, and it is shown that combustion is more stratified for dieseline whereas it is premixed for naphtha and PRF60.