Filtyp
The infrastructure for natural gas distribution can provide the possibility of an evolutionary as opposed to revolutionary introduction of hydrogen as an additive to natural gas (Hythane). In this study, pure natural gas and a hythane blend with 24.8% (vol.) hydrogen have been used to fuel a multi-cylinder heavy-duty natural gas engine.. Some comparisons with pure hydrogen operation are also prese
Trafikbullers inverkan på sömnen har undersökts medelst EEG-, EOG- och EMG-registreringar på sju unga män (21-27 år) och sex äldre män (63-74 år) i deras vanliga hemmiljö längs hårt trafikerade vägar (trafikintensitet cirka 450 fordonspassager med toppbullernivå överstigande 40 dB (A) per natt). Effekten av dämpning (cirka 10 dB (A)) av inomhusbullret genom montering av ljudisolerande plattor i fö
Purpose: To describe congenital stationary night blindness (CSNB) with negative electroretinogram, hypoplastic discs, nystagmus and thinning of the inner nuclear layer (INL). Methods: Retinal structure was analyzed qualitatively with spectral domain optical coherence tomography and wide field imaging. Retinal function was evaluated with full-field electroretinography (ffERG). Molecular genetic tes
The report offers an analysis of the R&I system in Sweden for 2015, including relevant policies and funding, taking into account the priorities of the European Research Area and the Innovation Union. The report was prepared according to a set of guidelines for collecting and analysing a range of materials, including policy documents, statistics, evaluation reports, websites, etc. The quantitat
A moral Historiography without Moralism. Critical views on modern Church History Efforts for realism without moral judgments have identified morals with present law. This leads to positivistic positions, where moral questions are being answered with references to historical legal situations only, without moral implications. With the political changes 1989–1990 a change in historiography followed.
The main topic of this PhD thesis is complexity reduction of linear time-invariant models. The complexity in such systems is measured by the number of differential equations forming the dynamical system. This number is called the order of the system. Order reduction is typically used as a tool to model complex systems, the simulation of which takes considerable time and/or has overwhelming memory
This is a study of wool in Icelandic history in a broad context, whereby wool production serves as a channel to central aspects of 18th-century society. The objective is to explore ideas about Iceland’s economy that were current in the 18th century in the light of developments in Denmark at the time, to place these ideas in the context of the recent introduction of workshopmanufacturing to Iceland
Famous for its many New Kingdom stelai and funerary shrines, Speos of Horemheb and magnificent quarries, this paper presents a preliminary report on a lesser acknowledged feature of Gebel el Silsila: its quarry marks. Focusing here on the northern section – Partition B – of Silsila East’s Main Quarry, seventeen individual quarry faces display totally 376 quarry marks, which have been divided into
The Dalby Gospel Book, dating from the eleventh century, is the oldest preserved complete manuscript with a medieval Scandinavian provenance, and has rightly been considered a document of great historical importance. Local patriotism has coloured its attribution by scholars to Dalby, with arguments presupposing judgemental quality assessments, questionable Anglo-Saxon parallells and alleged scriba
From a control design point of view, modern diesel engines are dynamic, nonlinear, MIMO systems. This paper presents a method to find low-complexity black-box dynamic models suitable for model predictive control (MPC) of NOx and soot emissions based on on-line emissions measurements. A four-input-five-output representation of the engine is considered, with fuel injection timing, fuel injection dur
The thesis discusses closed-loop control of the hypnotic and the analgesic components of anesthesia. The objective of the work has been to develop a system which independently controls the intravenous infusion rates of the hypnotic drug propofol and analgesic drug remifentanil. The system is designed to track a reference hypnotic depth level, while maintaining adequate analgesia. This is complicat
Title: Sing in Swedish! The purpose of this study is to find out how songs and singing could complement Swedish second language education. The method I have used to collect information is qualitative interviews with four persons with different professions: a teacher, a choirleader, a singing teacher and a medical doctor and a laryngologist. The study begins with a few thoughts about my interest in
