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Diluted Operation of a Heavy-Duty Natural Gas Engine - Aiming at Improved Effciency, Emission and Maximum Load

Popular Abstract in English News about global warming, discussions about alternative fuels such as natural-gas and biogas, and commercials about gas engines sound familiar to the most people living in modern societies. Why global warming is important? What is the role of natural-gas engines in this subject? Are natural-gas engines efficient? Do they perform as well as diesel engines? If not, why? Most heavy-duty engines are diesel operated. Severe emission regulations, high fuel prices, high technology costs (e.g. catalysts, fuel injection systems) and unsustainably in supplying fuel are enough reasons to convenience engine developers to explore alternative technologies or fuels. Using natural gas/biogas can be a very good alternative due to the attractive fuel properties regarding emissio

The European Spallation Source

In 2003 the joint European effort to design a European Spallation Source (ESS) resulted in a set of reports, and in May 2009 Lund was agreed to be the ESS site. The ESS Scandinavia office has since then worked on setting all the necessary legal and organizational matters in place so that the Design Update and construction can be started in January 2011, in collaboration with European partners. The

Sjukskrivningssystemet : Sjuka som blir arbetslösa och arbetslösa som blir sjukskrivna

Popular Abstract in Swedish 1997 ökade långtidssjukskrivningarna i Sverige, vilka fortsatte att öka till och med 2002. Vanligtvis förklaras ökningen med orsaker på individnivå eller i arbetsmiljön. Genom att avgränsa avhandlingen till långtidssjukskrivningar bland arbetslösa, hamnar en annan förståelse i fokus, sammanfattad som att välfärdsstater utvecklar dold arbetslöshet bland dem med begränsadIn 1997 the number of long-term absences due to illness began and continued to rise in Sweden. Traditional explanations of why this is so have been centered on either blaming the individual or blaming the work environment. By focusing on long-term illness of the unemployed, this dissertation suggests that there is a growing residual unemployment within advanced welfare states. The main question th

Modelling exploration of the future of European beech (Fagus sylvatica L.) under climate change-Range, abundance, genetic diversity and adaptive response

We explored impacts of climate change on the geographic distribution of European beech by applying state of the art statistical and process-based models, and assessed possible climate change impacts on both adaptive capacity in the centre of its distribution and adaptive responses of functional traits at the leading and trailing edge of the current distribution. The species area models agree that

A prospective observational study of the effects of treatment with extended-release tolterodine on health-related quality of life of patients suffering overactive bladder syndrome in Sweden

Objective. Overactive bladder (OAB) is a chronic condition that has a profound impact on health-related quality of life (HRQoL). This study measured changes in bother of OAB symptoms and self-perceived HRQoL over 6 months in patients treated with extended-release (ER) tolterodine in a naturalistic setting. Material and methods. This was a prospective, single-cohort observational study of patients

Severe gastrointestinal dysmotility developed after treatment with gonadotropin-releasing hormone analogs

Background. Sporadic cases of abdominal pain and dysmotility has been described after treatment with gonadotropin-releasing hormone (GnRH) analogs. The aim of the present study was to scrutinize for patients with severe gastrointestinal complaints after treatment with GnRH analogs, to describe the expression of antibodies against progonadoliberin-2, GnRH1, GnRH receptor (GnRHR), luteinizing hormon

Internal Fixation Versus Arthroplasty for Displaced Femoral Neck Fractures: What is the Evidence?

A review of the current evidence for internal fixation versus hemiarthroplasty versus primary total hip arthroplasty for displaced femoral neck fractures was undertaken. At the meta-analysis level no difference in postoperative pain, function, or quality of life can yet be demonstrated. A significant difference in mortality has also not been found, but a trend towards higher mortality after primar

Historisk spelfilmsanalys : exemplet Gustaf Molanders Vi som går köksvägen 1932

The aim of this article is to offer an object lesson in how historians could make use of feature film as primary source material if they were to use the analytical tools developed in the field of film studies and by historians who started to work with film in the 1970s and 1980s. My own work on representations of maidservants in Swedish feature films in the 1930s and 1940s is used as a case in poi

C-14 in spent ion-exchange resins and process water from nuclear reactors – A method for quantitative determination of organic and inorganic fractions

A method of separately quantifying organic and inorganic 14C compounds present in spent ion-exchange resins and process water from nuclear power reactors has been developed. Extraction of carbon compounds is accomplished by means of acid stripping (inorganic 14C) and subsequent wet oxidation (organic 14C) or by N2 purging in combination with a catalytic furnace (oxidized and reduced gaseous compou

Sound, Safety & Society - Research on Sound & Sustainability

Sustainability, resilience and safety are features of a society that are more affected by sound environments than is generally acknowledged, even if other environmental threats may appear more prominent. But when noise levels reach the limits of sustainability in society, it´s resilience to destructive processes of many kinds will be challenged. In an interdisciplinary symposium in 2014 arranged b

Childhood cancer survivor cohorts in Europe

With the advent of multimodality therapy, the overall five-year survival rate from childhood cancer has improved considerably now exceeding 80% in developed European countries. This growing cohort of survivors, with many years of life ahead of them, has raised the necessity for knowledge concerning the risks of adverse long-term sequelae of the life-saving treatments in order to provide optimal sc

Quantitative detection of myocardial ischaemia by stress echocardiography; a comparison with SPECT

Aims: Real-time perfusion (RTP) adenosine stress echocardiography (ASE) can be used to visually evaluate myocardial ischaemia. The RTP power modulation technique angio-mode (AM), provides images for off-line perfusion quantification using Qontrast (R) software, generating values of peak signal intensity (A), myocardial blood flow velocity (beta) and myocardial blood flow (Ax beta). By comparing re

Exit Pursued by a Bugbear : Stage Renderings of Mythical Moments in The Winter's Tale

This paper takes as its starting‑point three particular moments in The Winter’s Tale (Exit pursued by a bear (3.1), Time (4.1) and the Statue scene (5.3) – moments that have become famous, or infamous, even mythical, by being so difficult to stage1. Having worked intensively with The Winter’s Tale throughout the academic year 2012/13 (among other things directing it with two consecutive groups of

Three-dimensional measurement of the local extinction coefficient in a dense spray

Laser extinction, signal attenuation and multiple scattering are the three main phenomena limiting qualitative and quantitative measurements in planar laser imaging of sprays. In this paper, a method is presented where structured laser illumination planar imaging is used to remove the signal contribution from multiply scattered light. Based on this technique, data from side scattering and transmis

The mid-Ordovician Osmussaar breccia in Estonia linked to the disruption of the L-chondrite parent body in the asteroid belt

The Middle Ordovician (466 Ma) Osmussaar breccia, situated along the northwestern coast of Estonia, is rich in angular chromite grains of extraterrestrial origin (>13 grains kg(-1)) and shocked quartz. The angularity of the chromite grains implies that they have not been transported or reworked to any large extent, connoting that the brecciation is the result of a contemporary impactor, either as

Magic at the marketplace: Choice blindness for the taste of jam and the smell of tea.

We set up a tasting venue at a local supermarket and invited passerby shoppers to sample two different varieties of jam and tea, and to decide which alternative in each pair they preferred the most. Immediately after the participants had made their choice, we asked them to again sample the chosen alternative, and to verbally explain why they chose the way they did. At this point we secretly switch