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It is tractable to increase the torque for an HCCI engine and one way is to add a turbocharger. Operating in HCCI mode requires accurate control of the combustion phasing, CA50. The higher the engine torque, the narrower the CA50 window becomes where HCCI operation is maintained. As the CA50 varies stochastically between cycles this requires improved CA50 control for turbo HCCI engines. The main f
By using a turbo the operating range of the HCCI engine can be increased, but at the expense of increased controller complexity. The dynamics the turbo introduces in the intake and the exhaust manifolds, have a large impact on the in-cylinder mixture temperature, pressure and finally the combustion phasing. To compensate for this and to maintain desired combustion phasing, precise control of the n
For diesel engines the major exhaust problem is particulate matter and NOx emissions. To reduce NOx, exhaust gas recirculation (EGR) is often used. The behavior of the EGR-level will therefore influence the emissions and it is therefore valuable to keep track of the EGR-level. Especially during transients it is difficult to predict how the EGR-level varies. In this paper the CO2-level in the intak
Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels and injection timings sufficiently early or late to extend the ignition delay so that air and fuel mix extensively prior to combustion. This paper investigates the operating region of single injection diesel PPC in a multi cylinder heav
Purpose: To identify and evaluate possible causes of poor patient-reported visual function after cataract surgery. Methods: We obtained retrospective data from the Swedish National Cataract Register on patient self-assessed visual function before and after cataract surgery based on the Catquest-9SF questionnaire. We identified patients who self-reported similar or more difficulties postoperatively
Objectives: Patients with antineutrophil cytoplasmatic antibodies-associated vasculitides (AAV) exhibit higher mortality than the general population. In the current study, we assessed whether cluster affiliation based on clinical presentation might predict mortality. Methods: With case record review, the outcomes for a population-based cohort of patients diagnosed with AAV in southern Sweden (catc
Human brown fat tumors (hibernomas) display concomitant loss of the tumor suppressor genes MEN1 and AIP. In the present study, we hypothesized that the brown fat phenotype is attributed to these mutations. Accordingly, we demonstrate that silencing of AIP in human brown preadipocytic and white fat cell lines results in the induction of the brown fat marker UCP1. In human adipocytic tumors, loss of
Introduction: Central venous access devices facilitate home treatment in boys with haemophilia. These are usually fully implanted lines, referred to as ports. Caregivers are taught to manage the port using sterile techniques and maintaining patency by flushing with saline or heparin solution. National and international guidelines for the home care of ports are lacking. Aim: To evaluate if infectio
Background: The Autism Diagnostic Interview-Revised (ADI-R) is considered a first choice assessment tool in autism spectrum disorder. Nevertheless, despite its wide use in psychiatric practice and recommendations by various clinical guidelines, its interrater reliability has predominantly been confirmed in research settings by specially trained, research reliability interviewers. The reliability o
Late medieval towns have often been neglected within the urban archaeological paradigm. This article tries to discuss the medieval urbanization from the perspective of small late medieval towns in relation to other types of central places by using a regional perspective. The towns of Vimmerby and Eksjö, and the central places of Värnamo and Vetlanda in Småland are used as examples. In this region,
Denna bok är avsedd att vara en vägledning och fördjupning till utställningen Skatter i Skåneland. Boken innehåller dels en kronologisk översikt över såväl det historiska som det numismatiska skeendet i Skåneland under den tid när man där präglade mynt, och dels spännande historier kring de myntfynd som visas i utställningen. Tanken är att boken skall vara besökaren till nytta i utställningen men
This book is intended as a guide to the exhibition "Treasures in Skåneland”, providing further information. The book contains a chronological survey of general and numismatic history in Skåneland during the time when coins were minted here, as well as descriptions of the coin finds on show in the exhibition. The idea is that the book will be of use to visitors in the exhibition, while also making
Solid tumors in childhood are extremely rare entities, which are usually treated in specialized centers. Diagnosis and therapy are carried out according to a joint European protocol, whereby the pathological evaluation and therapy are carried out according to international guidelines. For the correct diagnosis and/or therapy of most tumors, analysis of specific genetic changes is mandatory; theref
We present the suggested temperature control system of the future ESS phase-reference line. The poster describes modeling, simulation, choice of hardware components, control algorithm, and measurement results from a 4.5 meter prototype developed at the Department of Automatic Control at Lund University in close collaboration with the European Spallation Source (ESS). The measurement results indica
Background: Lung cancer is the leading cause of cancer death. Little is known about whether prediagnostic nutritional factors may affect survival. We examined the associations of prediagnostic calcium intake from foods and/or supplements with lung cancer survival. Methods: The present analysis included 23,882 incident, primary lung cancer patients from 12 prospective cohort studies. Dietary calciu
