Heat release in the end-gas prior to knock in lean, rich and stochiometric mixtures with and without EGR

SI Engine knock is caused by autoignition in the unburnt part of the mixture (end-gas) ahead of the propagating flame. Autoignition of the end-gas occurs when the temperature and pressure exceeds a critical limit when comparatively slow reactions - releasing moderate amounts of heat - transform into ignition and rapid heat release. In this paper the difference in the heat released in the end-gas

Using a force feedback device to present graphical information to people with visual disabilities

Force feedback (FF) devices will bring us new ways to interact with computers. The game industry is starting to create sophisticated devices that enable users to feel virtual objects and movements. For people with visual disabilities, this might be even m

Med genus på scenen

Regular column on theatre in the weekly newspaper Arbetaren (The Worker).

PIQS – Parent Ion Quantitation Scanning

Large eddy simulation and experimental investigation of the flow dynamics in a gas turbine combustor

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Long Term Growth in Time and Space. Method and Indicative Evidence from the Swedish Manufacturing Industry 1968 - 2002

Frequency Resolution of a Multi Degree of Freedom Resonator

This paper outlines the process for estimating measurable parameters in a multi degree of freedom micro resonator. Thermal mechanical noise provides a baseline limit for frequency resolution of micro resonators. We develop the likelihood function for a linear regression model of 2 degree of freedom resonator. Using the Cramer-Rao inequality we determine the minimum possible covariance to estimate

Förfarande och anordning för utvärdering av en bräda av trä

Föreliggande redogörelse avser en metod och en anordning för utvärdering av en bräda av trä med en ländriktning. Data som indikerar fiberorienteringen över brädans yta inhämtas och för ett antal underpartier hos brädan bestäms en nominell, lokal elasticitetsmodul, MOE, på basis av nämnda fiberorienteringsdata och en nominell materialparameter. En nominell global MOE i längdriktningen för träbrädan

SPAM A LOT: Why SPAM is not (all)unhealthy food-SPAM as political and cultural resistance in Hawaii

The first time I visited, what is sometimes called the last Hawaiian fishing village, Miloli´i, South Kona, on the west coast of the island of Hawaii (The Big Island) in 1998, a villager took me out for fishing. We had a pretty decent catch of tuna that morning, she told me. Back to the house my newly found friends were soon preparing for a wonderful lunch with fresh tuna. Or, so I thought. To my

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Speed Regulation by in-car active Accelerator pedal – effects on speed and speed distribution

The effects on speeds and speed distribution were studied in a large scale field trial with an in car system for speed adaptation in the city of Lund, Sweden. In the trial 290 vehicles were equipped with an "active accelerator pedal" and data logger for a period of 3-11 months. Data was logged in each test vehicle during the whole trial and was analyzed for 3 one-month periods: Before activating t

Flykten till tystnadens republik - om att lägga sig ner

Bahrain- Another Trajectory of the Arab Spring. The New Middle East; Emerging Political and Ideological Trends Center for Islamic and Middle Eastern Studies, IKOS, University of Oslo. November 28, 2011.

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Objectively measured physical activity level a during a physical education class: A pilot study with Swedish youth

Planning for the market: Business planning before marketing and the survival of new ventures

A Pre-Study of Design Space Exploration for Hardware-Software Systems

Förnyelsens livsformer: Reflektioner kring försöks- utvecklings - och forskningsprojekt inom folkbildning och vuxenundervisning i Norden.

Plankan. En studie över den solida elgitarren