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Flexibla och ekonomiska system för eldrift av vägfordon är ett område med aktiv utveckling och forskning.Denna rapport tillämpar sådana system för drift av stadsbussar i Linköping. En programvara försimulering och ekonomisk optimering av sådana system har använts och några systemkonstruktionerpresenteras. Programvaran utvecklades i ett tidigare projekt på LTH. De testade systemen skiljer sig ivaleFlexible and economic systems for electric operation of road vehicles is an area of interest for researchand development. This report applies such systems to the operation of city buses in Linköping. An LTHdeveloped software for simulations and economic optimizations of such systems is used and a few systemdesigns are presented. The tested systems differ in selection of bus lines and the type of c

We review the results of silicon measurements, which we have performed on suboxide SiOx formed on n and p type Si wafers with different surface textures. Localized vibrational modes through Raman and FTIR, light emission properties by photoluminescence (PL), energy critical points for optical transitions, excited state dynamics and non-linear electrical properties can be used as effective methods

This paper is about line search for the generalized alternating projections (GAP) method. This method is a generalization of the von Neumann alternating projections method, where instead of alternating projections, relaxed projections are alternated. The method can be interpreted as an averaged iteration of a nonexpansive mapping. Therefore, a recently proposed line search method for such algorith

Introduction The impact of the increased anticoagulants uptake on incidence rate of ischemic stroke is largely unknown. We assessed time trends in rates of ischemic stroke in patients with incident atrial fibrillation (AF) diagnosed between 2011 and 2013. Materials and methods Population-based retrospective registry study of all 11,500 adults diagnosed with incident non-valvular atrial fibrillatio

This health technology assessment evaluated the efficacy of pharmacological treatment in patients with oro-facial pain. Randomised controlled trials were included if they reported pharmacological treatment in patients ≥18 years with chronic (≥3 months) oro-facial pain. Patients were divided into subgroups: TMD-muscle [temporomandibular disorders (TMD) mainly associated with myalgia]; TMD-joint (TM

Precise air-path control of heavy-duty diesel engines contributes to emission regulation and high engine efficiency. The air path with VGT and EGR system is highly nonlinear with non-minimum-phase-system properties. The authors present a nonlinear control design - Receding Horizon Sliding Control (RHSC) to solve the tracking problem of the air-path. This control method handles the nonlinear dynami

The UN Charter describes him or her merely as the “chief administrative officer of the organization,” yet today the Secretary-General is widely recognized as the UN’s chief political representative. How did this transformation and expansion of the office from administrative to political take place? Existing scholarship tends to emphasize the contribution made by Dag Hammarskjöld. This article chal

Securing the continued growth of the digital economy will largely depend on how we manage consumer data, and which operators and tools we use to moderate, analyze and trade that data, according to guest author Stefan Larsson of Lund University Internet Institute. If users were to begin to perceive the collection and handling of their personal data as illegitimate, he argues, their trust in digital

Veto player theory generates predictions about governments' capacity for policy change. Due to the difficulty of identifying significant laws needed to change the policy status quo, evidence about governments' ability to change policy has been mostly provided for a limited number of reforms and single-country studies. To evaluate the predictive power of veto player theory for policy making across

Background We attempt to develop a relatively comprehensive structural model of risk factors for drug abuse (DA) in Swedish men that illustrates developmental and mediational processes. Methods We examined 20 risk factors for DA in 48,369 men undergoing conscription examinations in 1969–70 followed until 2011 when 2.34% (n = 1134) of them had DA ascertained in medical, criminal and pharmacy regist

Background: The P1 antigen was first described in 1927 but not categorized with the Pk antigen in the P1PK histo-blood group system until 2010. Individuals of P1 phenotype have both the Pk and P1 antigens on their red blood cell (RBC) surface, while P2 individuals lack P1 and have lower amounts of Pk. Like in the ABO system, the antigens are carbohydrate epitopes built up stepwise by glycosyltrans

Background and purpose — Clindamycin has not been compared with other antibiotics for prophylaxis in arthroplasty. Since 2009, the Swedish Knee Arthroplasty Register (SKAR) has been collecting information on the prophylactic antibiotic regime used at every individual operation. In Sweden, when there is allergy to penicillin, clindamycin has been the recommended alternative. We examined whether the

We integrate field data and phylogenetic comparative analyses to investigate causes of body size evolution and stasis in an old insect order: odonates ("dragonflies and damselflies"). Fossil evidence for "Cope's Rule" in odonates is weak or nonexistent since the last major extinction event 65 million years ago, yet selection studies show consistent positive selection for increased body size among

Extracellular vesicles, such as exosomes and microvesicles, are host cell-derived packages of information that allow cell-cell communication and enable cells to rid themselves of unwanted substances. The release and uptake of extracellular vesicles has important physiological functions and may also contribute to the development and propagation of inflammatory, vascular, malignant, infectious and n

A number of studies have analysed how multinational enterprises (MNEs) develop appropriate strategies for managing the institutionally different contexts of various markets. However, we still know rather little about how MNEs manage different institutional pressures when they operate in emerging markets. These markets have a higher level of uncertainty as their values and structures undergo change

The prevalence and incidence of doctor-diagnosed Dupuytren's disease in the general population is unknown. From the healthcare register for Skåne region (population 1.3 million) in southern Sweden, we identified all residents aged 3/420 years (on 31 December 2013), who 1998 to 2013 had consulted a doctor and received the diagnosis Dupuytren's disease (International Classification of Diseases 10th

Complement activation is associated with common rheumatic diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA) and systemic vasculitis. Evidence linking complement activation to these diseases includes the presence of complement deposition in affected tissues, decreased levels of complement proteins and high levels of complement activation fragments in the blood and/or sy