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Characterization of Partially Premixed Combustion With Ethanol: EGR Sweeps, Low and Maximum Loads

Exhaust gas recirculation (EGR) sweeps were performed on ethanol partially premixed combustion (PPC) to show different emission and efficiency trends as compared with diesel PPC. The sweeps showed that when the EGR rate is increased, the efficiency does not diminish, HC trace is flat, and CO is low even with 45% of EGR. NOx exponentially decreases by increasing EGR while soot levels are nearly zer

Low NOx and Low Smoke Operation of a Diesel Engine Using Gasolinelike Fuels

Much of the technology in advanced diesel engines, such as high injection pressures, is aimed at overcoming the short ignition delay of conventional diesel fuels to promote premixed combustion in order to reduce NOx and smoke. Previous work in a 2 l single-cylinder diesel engine with a compression ratio of 14 has demonstrated that gasoline fuel, because of its high ignition delay, is very benefici

Viktiga frågor för framtidens rapportering

Många utmaningar kvarstår för en fullt ut integrerad modell när det gäller företagens tänkande och rapportering av både finansiell och icke-finansiell information. Amanda Sonnerfeldt och Caroline A. Pontoppidan uppmanar till en bredare diskussion om framtidens redovisning.

Integrating enzyme fermentation in lignocellulosic ethanol production: life-cycle assessment and techno-economic analysis

BackgroundCellulase enzymes have been reported to contribute with a significant share of the total costs and greenhouse gas emissions of lignocellulosic ethanol production today. A potential future alternative to purchasing enzymes from an off-site manufacturer is to integrate enzyme and ethanol production, using microorganisms and part of the lignocellulosic material as feedstock for enzymes. Thi

Multifocal electroretinogram for functional evaluation of retinal injury following ischemia-reperfusion in pigs.

BACKGROUND: Multifocal electroretinogram (mfERG) has the power to discriminate between localized functional losses and overall retinal changes when evaluating retinal injury. So far, full-field ERG has been the gold standard for examining retinal ischemia and the effects of different neuroprotectants in experimental conditions. The aim of the present study was to establish mfERG, with simultaneous

SBA-dokumentation-KEG vers20231122

Senast ändrad 2023-11-22 av Arvin Khoshnood (brandskyddsansvarig) 1 Systematiskt brandskyddsarbete Institutionen för kulturgeografi och ekonomisk geografi, Lunds universitet Senast ändrad 2023-11-22 av Arvin Khoshnood (brandskyddsansvarig) 2 BESKRIVNING Denna dokumentation avser brandskyddsarbetet på Institutionen för kulturgeografi och ekonomisk geografi, Lunds universitet, Lund, Geocentrum I, oc

https://www.keg.lu.se/sites/keg.lu.se/files/2024-01/SBA-dokumentation-KEG_vers20231122.pdf - 2026-05-28

Sakkunnigutlatande utvfoutbsocarbfinal

1 Utvärdering av forskarutbildningen i socialt arbete vid Lunds universitet 2019 Undertecknande sakkunniggrupp vill härmed avlägga följande utlåtande gällande utvärdering av forskarutbildningen i socialt arbete vid Lunds universitet. Sakkunniggruppen har bestått av: Peter Dellgran, professor i socialt arbete vid Göteborgs universitet (ordförande) Marjaana Seppänen, professor i socialt arbete vid H

https://www.sam.lu.se/internt/sites/sam.lu.se.internt/files/sakkunnigutlatande_utvfoutbsocarbfinal.pdf - 2026-05-28