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Direct injection (DI) hydrogen internal combustion engines are gaining attention as a promising technology for a sustainable energy transition, particularly in the transport sector. A key factor in improving the performance of these engines is understanding how hydrogen jets behave within the combustion chamber, especially their interactions with the chamber walls. These jet-wall interactions are

Denna avhandling undersöker performativa protesters möjligheter att utmana epistemiskt våld och omforma antagonistiska relationer genom agonistiskt engagemang i den djupt asymmetriska och polariserade kontexten i Palestina och Israel. Studien baseras på etnografiska fältarbeten – inklusive 35 intervjuer och 57 deltagande observationer – genomförda på olika platser i städer såsom Jerusalem, Tel AviThis dissertation explores the potential of performative protest to challenge epistemic violence and reconfigure antagonistic relations through agonistic engagement in the deeply asymmetrical and polarised context of Palestine and Israel. Drawing on multi-sited ethnographic fieldwork—including 35 interviews and 57 participant observations—conducted across diverse locations such as Jerusalem, Tel A

To address the pressing challenge of decarbonizing heavy-duty transportation, this thesis explores advanced combustion strategies using sustainable gaseous fuels, specifically hydrogen and methane, in internal combustion engines (ICEs). While electrification remains difficult to implement in long-haul applications due to energy density and infrastructure limitations, this work identifies and refin

Abstract in ItalianDerrida individua un discorso basato sulla ragione e un altro sulla rivelazione. Kant rifiuta quest’ultimo, in quanto contiene un ‘tono’ che implica soggettività, speculazione e pretese di conoscenza ‘mistiche’. Si può anche sostenere che l’accettazione della conoscenza rivelata o intuitiva legittimi le teorie cospirative, con gravi conseguenze politiche. Tuttavia, un discorso uDerrida identifies a discourse based on reason and another on revelation. Kant rejects the latter, as it contains a tone that entails subjectivity, speculation and claims to knowledge by mystical means. It may also be argued that acceptance of revealed or intuitive knowledge legitimises conspiracy theories, with grave political consequences. Yet a pure and plain discourse is conceptually impossibl

Industry 4.0 concepts have recently significantly supported transparency and reliability in every industrial sector. Organizations must adapt their traditional paradigms and approaches to align with market demands. Hence, developing a framework that can change these conventional approaches with fresh ideas is essential. The Industry 4.0 (I4.0) readiness model presents a creative concept that holds

Animal vocalizations are extremely diverse, and evolutionary approaches to understanding this diversity assume some mapping between their acoustic form and communicative function, with specific features serving universal roles. Here, we investigate whether irregular vocal production with nonlinear phenomena contrib-utes to the alarming quality of vertebrate calls. We resynthesized 98 calls of bird

OBJECTIVES: Pulmonary valve implantation (PVI) is common in children with congenital heart disease particularly as they get older. While surgical PVI (SPVI) was the mainstay of treatment for years, percutaneous PVI (PPVI) has evolved into a popular treatment option. The aim of our study was to evaluate the rate of prosthetic pulmonary valve infectious endocarditis (PPVIE) between these two modes o

OBJECTIVE: Traditional rejection surveillance after heart transplantation (HTx) is based on endomyocardial biopsies (EMB), which are invasive, expensive and associated with complications. Monitoring using cell-free DNA (cfDNA) is promising, but most studies report only on the donor fraction (DF) as the percentage of donor derived-cfDNA (dd-cfDNA) relative to total-cfDNA. We evaluated the performan

Introduction: Contrary to popular belief, there is limited research on sugar intake as a risk factor for cardiovascular disease. While the links between sugar-sweetened beverage intake and cardiovascular disease risk are well-established, little is known about the associations for overall added or free sugar intake and other dietary sources of added sugar. Objective markers of habitual sugar intak

The paper presents novel studies on the electrical-to-thermal energy deposition to gas at different phases of a spark. The experiments utilized a 10.9 milliliter custom-built spark calorimeter. The energy transfer efficiencies across spark phases—breakdown+arc, and glow are quantified, emphasizing their importance in ensuring robust ignition. An AC capacitive ignition system was considered in the

The People’s Park in Lund was one of Sweden’s first public places owned by the labour movement. Today the park has become a municipal re creational facility and cultural centre, and the pivotal role of labour in its creation has all but completely faded. Yet despite this amnesia, urban development plans for the park have been overturned many times with references to the place’s past, which has mad