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Comparison between a novel claw-pole electrically magnetized synchronous machine without slip-rings and a permanent magnet machine

Electrical machines used in EV/HEV traction applications are usually driven at speeds where field weakening operation is required. In this region, electrically magnetized machines are more easily operated than permanent magnet machines. This paper discusses the performance of an electrically magnetized synchronous machine where the field coils are placed in magnetically conducting end-plates attac

DC-DC Converters - Dynamic Model Design and Experimental Verification

To obtain high performance control of a dc-dc converter, a good model of the converter is needed. The load usually affects the dynamics and one way to take this into consideration is to regard the load as a part of the converter. The load is often the most variable part of this system. If the load current and the output voltage are measured there are good possibilities to obtain a good model of th

Transport, bebyggelse och utvecklingskontroll : En komparativ stadsgeografisk studie

Syftet med avhandlingen är att klarlägga de intraurbana sambanden mellan transportstruktur, bebyggelsestruktur och maktstruktur (utvecklingskontroll). Viktiga faktorer för samspelet som vi urskiljt är verksamhets- och bostadslokalisering, densitet, centrumstruktur, transportsystemets uppbyggnad och färdmedelsval. Faktorerna sammanfattas i en enkel modell. Sambanden har undersökts i fem utländska f

Parapsychology: A handbook for the 21st century

This book is the first in almost 40 years to provide a comprehensive scientific overview of research in the field of parapsychology, explaining what we know and don’t know about so-called psi phenomena, such as “telepathy,” “precognition” or “psychokinesis.” Contributors evaluate the evidence for these phenomena, accounting for factors such as selective memory, wish fulfillment and incorrect metho

Chefsliv - det ska fan vara chef

Boken emanerar ur ett antal delstudier av chefsarbete, identitet och organisation som vi i organisationsgruppen vid Företagsekonomiska institutionen, Lunds universitet, har bedrivit under snart ett decennium. Huvudidén är att granska väsentliga delar av modernt arbets- och organisationsliv på nära håll. Detta har skett genom djupstudier av ett antal personer som arbetar som mellanchefer och/eller

Prevention of Textile Waste. Material flows of textiles in three Nordic countries and suggestions on policy instruments

Textile exerts various environmental impacts throughout its life cycle. Prevention of textile waste is one means to reduce these impacts. This study seeks to map-out the flow of textile products in the three Nordic Countries – Denmark, Finland and Sweden – from the time they are put on the market until they are discarded. Based on the findings on the flows as well as on the perception of stakehold

Statistical Analysis Plan (SAP) for the KANON-Study

STUDY SYNOPSIS Anterior cruciate ligament (ACL) injuries are common, severe and disabling knee injuries occurring in young active athletes. Treatment could be either surgical or non-surgical,both involving extensive rehabilitation for at least 4-6 months. Two RCTs comparing surgical and non-surgical treatment of ACL injured knees was performed in the 80’s and both failed to present any difference

Pharmacological Modulation of Skeletal Homeostasis

Popular Abstract in Swedish Benskörhet (osteoporos) är en sjukdom, som leder till att benstommen förlorar en del av sitt kalkinnehåll och sin styrka. Benbrott kan därigenom uppstå spontant eller vid lättare påfrestningar. Gastrektomi (kirurgiskt avlägsnade av magsäcken, GX) och ovariektomi (kirurgisk avlägsnade av äggstockarna, OVX) leder till benskörhet hos människa såväl som hos försöksdjur. MedBoth ovariectomy (OVX) and gastrectomy (GX) cause osteopenia in several animal species including humans. While the effect of OVX has been ascribed to estrogen deficiency, the underlying mechanism behind GX-induced osteopenia is poorly understood. Nutritional deficiencies, including lack of calcium and vitamin D, have been claimed to cause the osteopenia induced by GX. This thesis attempts to clari

Genetic Analysis of Cytosolic PGI in Festuca ovina

Popular Abstract in Swedish Mitt försöksmaterial utgjordes av Festuca ovina, fårsvingel, som är ett mycket vanligt gräs och tillhör familjen Poaceae. Fårsvingel är en perenn korsbefruktare och spridd över den tempererade zonen i Euroasien och Nordamerika. Släktet Festuca är uppdelat i smalbladiga svinglar, dit fårsvingel hör, och bredbladiga svinglar. Släktet Lolium, dit rajgräsen hör, är en nära Festuca ovina, sheep's fescue is a widely distributed perennial outbreeder that belongs to the grass family Poaceae and is very common in the northern temperate zone. The genus Festuca s.l. is partitioned into fine-leaved fescues to which F. ovina belongs, and broad-leaved fescues to which the genus Lolium is a close relative. Wide crosses within the Festuca-Lolium complex often yield fertile hybr