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It has previously been shown by the authors that the pre-chamber ignition technique operating with fuel-rich pre-chamber combustion strategy is a very effective means of extending the lean limit of combustion with excess air in heavy duty natural gas engines in order to improve indicated efficiency and reduce emissions. This article presents a study of the influence of pre-chamber volume and nozzl

The main purpose of this thesis is to analyze debates around and changes in knowledge production and medical practices of childbirth between 1960 and 1985 in Sweden. The roles of the different actors involved, such as physicians, midwives, the National Board of Health and Welfare, the women’s movement and politicians are studied in four main contexts: medical practice and debate, the Swedish Parli

Accidents and injuries caused by electricity are work environment risks for electricians. About a 100 cases are reported annually to the Swedish Work Environment Authority. The safety culture at the electricians’ workplaces can affect the successfulness of safety management and the prevention of injuries. This paper presents preliminary questionnaire and interview findings on the perceived workpla

The organisational network of global environmental governance (GEG) mirrors the complexity of the planet's manifold and overlapping ecosystems. Bursting onto the international stage in the 1970s, environmental issues began to be addressed by a series of new international organisations, most of them affiliated with the United Nations. Some of them, such as the United Nations Environment Programme (

The subject of this thesis is the clinical use of the oesophageal electrode in electrocardiology. The three areas covered are oesophageal electro- cardiography, the biophysics of transoesophageal atrial stimulation (TAS) and the clinical utility of TAS. The literature is reviewed with respect to these areas. TAS was performed in 64 patients with documented supraventricular tachycardia (SVT) or a

This report presents the findings of of the "Snow, Water, Ice and Permafrost in the Arctic (SWIPA) : Climate Change and the Cryosphere" assessment, the third AMAP assessment on arctic climate issues and a follow-up on the Arctic Climate Impact Assessment (ACIA) published in 2005. The assessment was conducted between 2008 and 2011 by over 200 scientists, experts, and members of Native groups, and b

The objective of this study was to evaluate how Swedish parents regard their children’s participation in meals. Taped interviews with 62 parents, responsible for meals at home, were transcribed and evaluated. This article is restricted to the 21 middle-class families in the group. Through analysis of the interviews, we evaluated how middle-class parents set out to mediate a certain approach to foo

This paper introduces means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variabi

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Risk and Interdependencies in Critical Infrastructures Springer Series in Reliability Engineering 2012, pp 49-65 Modelling, Simulation and Vulnerability Analysis of Interdependent Technical Infrastructures Jonas Johansson, Henrik Hassel … show all 2 hide » Download Book (7 380 KB) As a courtesy to our readers, the eBook is provided DRM-free. However, please note that an invisible watermark has

Purpose of this paper The expression Enhanced Liability refers to clauses in a contract which obligation one of the partners to accept extended liability for future claims payments beyond normal standards of transport law, conventions or national standard terms and conditions for logistics service intermediaries, logistics service providers and carriers. This paper provides explanations and unders

In this anthology are gathered 28 essays, devoted to the interrelations of the arts and media. They present together the current state of the emerging field of Interart Studies. The contributors – Stephen Greenblatt, Claus Clüver, Erika Fischer-Lichte, John Neubauer, Steven Paul Scher, Walter Bernhart, Ulrich Weisstein, Eric Haskell, Eric Vos, Thomas Elsaesser, among others – are leading internati