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Recent experiments and numerical studies have showed that piston geometry has a significant effect on the homogeneous charge compression ignition (HCCI) process. There are two effects generated by the combustor geometry: the geometry affects the flow/turbulence in the cylinder; the geometry also affects the temperature stratification. The temperature stratification is more directly responsible for

A single zircon grain dated by ion probe with a minimum age of 3432±30 Ma was found in a microgranite dyke, which cuts norite of 916±11 Ma Hakefjorden Complex at Älgön on the Swedish west coast north of Gothenburg. Zircons are a rare accessory mineral in this dyke. They could be classified by morphology as orthocrysts and xenocrysts. Data from four orthocrysts show that the dyke originated between

It has been known from multi-zone simulations that HCCI combustion can be significantly affected by temperature stratification of the in-cylinder gas. With the same combustion timing (i.e., crank angles at 50% heat release, denoted as CA50), large temperature stratification tends to prolong the combustion duration and lower down the in-cylinder pressure-rise-rate. With low pressure-rise-rate HCCI

240919 Soc ia lhögskolan Socialhögskolans handlingsplan för jämställdhet och lika villkor 2024-2027 I föreliggande dokument beskrivs Socialhögskolans arbete med jämställdhet och lika villkor (JoL). Del 1 utgörs av handlingsplanen, dvs utgångspunkterna för institutionens JoL-arbete. Del 2 utgörs av planerade, pågående och avslutade åtgärder i enlighet med handlingsplanens målsättningar. JOL-arbetet

https://www.soch.lu.se/internt/sites/soch.lu.se.internt/files/2026-01/JoL%20Handlingsplan%202024-2027-2.pdf - 2026-05-19

https://projekt.ht.lu.se/fileadmin/user_upload/project/cefle/textes/le_sous-corpus_transversal/stade_b/Billy.txt - 2026-05-18

https://projekt.ht.lu.se/fileadmin/user_upload/project/cefle/textes/le_sous-corpus_longitudinal/billy/Texte_3.txt - 2026-05-18

Despite systematic screening and improved treatment strategies, the prognosis remains worse in patients with connective tissue disease-associated pulmonary arterial hypertension (CTD-PAH) compared to patients with idiopathic/hereditary pulmonary arterial hypertension (IPAH). We aimed to investigate differences in clinical characteristics, outcome and performance of the European Society of Cardiolo

The design of efficient data structures is of primary importance in creation of theoretical algorithms as well their more tangible descendants, computer programs. In this dissertation we study computational aspects of data structures and their respective algorithms from a theoretical viewpoint, which are however of direct importance in the implementation of solutions for real-world problems. We pr

An experimental and numerical study on mechanical properties, such as strength, elastic modulus, creep and shrinkage, of Self-Compacting Concrete, SCC, and the corresponding properties of Normal Compacting concrete, NC, is outlined in this article. The study included eight mix proportions of sealed or air-cured specimens with water-binder ratio, w/b, varying between 0.24 and 0.80. Half of the mixe

Popular Abstract in Swedish Denna avhandling handlar om modeller för plana solfångare, transparent isolering och verkningsgradsfaktorer. En ekvation för energiutbytet från en glasad plan solfångare härleds genom att modellera verkningsgradsfaktorn, F´, som en summa av en konstant och en temperaturberoende del. Ett alternativt sätt att testa en plan solfångare, baserat på denna modell, föreslås. EThis thesis deals with models of flat plate collectors, transparent insulation and efficiency factors. An equation for the energy output from a glazed flat plate collector is derived by modelling the collector efficiency factor, F´ as the sum of a constant and a temperature dependent part. An alternative way of testing a flat plate collector, based on this model, is suggested. A complete set of a

History You could say that the Lund University Academic Choir (LAK) formed at two points in time. In 1927, the Lund Women’s Student Choir was formed by Anna Munck-Falk as an alternative to the Lund Student Singers’ Association, which was entirely composed of male singers. In 1948, the choir reformed as the Lund University Academic Choir, mainly due to the limited repertoire for women’s choirs. How

https://www.odeum.lu.se/en/ensembles/lund-university-academic-choir/about-lund-university-academic-choir - 2026-05-17

Popular Abstract in Swedish Med föreliggande avhandling vill jag belysa att Chrétien de Troyes Graalsaga, till skilnad från vad de åtskilliga kritiker har påstått, inte bygger på traditionella ridderliga värden, men väl avslöjar en problematisk ideologi. Denna ideologi prövas med hjälp av V. Jouves metod, som beskrivs i hans Poétique des valeurs. Graalsagans värden analyseras ur ett dubbelt persp

The diagnostic techniques for simultaneous velocity and relative OH distribution, simultaneous temperature and relative OH distribution, and three component velocity mapping are described. The data extracted from the measurements include statistical moments for inflow fluid dynamics, temperature, conditional velocities, and scalar flux. The work is a first step in the development of a detailed lar