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Limited-slip differentials (LSDs) are commonly used in high performance vehicles to im- prove handling by reducing differential speed and balancing torque between the driving wheels. BorgWarner develops electronically activated LSDs and Electric Cross Differen- tials (eXD), which dynamically control torque distribution to improve traction and vehicle performance. However, current electrically acti
A systematic assessment of radiotherapy for cancer was conducted by The Swedish Council on Technology Assessment in Health Care (SBU) in 2001. The assessment included a review of future developments in radiotherapy and an estimate of the potential benefits of improved radiotherapy in Sweden. The conclusions reached from this review can be summarized as: Successively better knowledge is available o
The Swedish sound string /at/ (graphically: att) is associated with two grammatical functions: a) (part of) a subordinate conjunction and b) as an infinitive marker. Previous studies connect final lengthening and pauses with prosodic and syntactic boundaries in spoken discourse. Following these findings, this pilot study, with 5 short spontaneous discourses from 3 male speakers shows a correlation
IgA deficiency developed in a 2-year-old boy with aplastic anaemia who received a bone-marrow graft from his HLA-identical, 6-year-old, IgA-deficient sister. Southern blot analysis revealed the presence of alpha-genes in both children, thus suggesting a defect of lymphocyte stem-cell differentiation as a cause of IgA deficiency. Tissue typing showed homozygosity of HLA A1, B8, DR3, the haplotype a
The appearence of quantum chaos in the excited rapidly rotating nucleus is studied in a simple nuclear model, consisting of the cranked Nilsson model with a schematic two-body interaction added. Chaos is found to smoothly set in at a much lower excitation energy in normal-deformed 168Yb than in superdeformed 152Dy. A dynamical sign of chaos is a saturation of the standard deviation of the E2-stren
Popular Abstract in Swedish Målet med avhandlingen är en ökad kostnadseffektivitet i förebyggande behandling av blödarsjuka. Allmän bakgrund om blödarsjuka och förebyggande behandling Blödarsjuka är en ärftlig sjukdom som endast uppträder hos män, även om anlaget överförs av kvinnliga bärare. I Sverige finns ungefär 700 blödarsjuka. Sjukdomen tar sig uttryck i en abnorm blödningsbenägenhet med fThe aim of the thesis was to increase cost-effectiveness in prophylactic treatment of haemophilia. Prophylaxis is effective to prevent bleedings and arthropathy, but the high cost limits its use. First, a new distribution system for clotting factor concentrates was implemented in Sweden to improve availability and reduce risks and costs. Next, optimization of dosing in prophylactic treatment was e
Baddeleyit är en zirkoniumoxid som normalt sett inte är stabil i kiselmättade miljöer, utan då omvandlas till zirkon. Mitt arbete kommer att handla om ett extremfall då baddeleyit har påträffats i en kvartsit i södra Ghana. Zirkoner med baddeleyitomvandlingar hittas precis vid kontakten till en deformerad granit. Efter att ha undersökt både bergarten och de enskilda zirkonkornen i ljusmikroskop ocBaddeleyit is a zirconium oxide that normally is not found in silica rich environments, because it’s not stabile. It will rather react and form zircon. My paper will deal with an extreme case where the baddeleyit was found in a quartzite I the southernmost part of Ghana. Zircons with baddeleyit inclusions were found right above a contact with a deformed granite. After some studies on the rock and
Structural Mechanics VIBRATION MEASUREMENTS OF A WOODEN BUILDING STRUCTURE Report TV SM -7162 O LA FLO D ÉN V IB R A TIO N M EA SU R EM EN TS O F A W O O D EN B U ILD IN G STR U C TU R E OLA FLODÉN DEPARTMENT OF CONSTRUCTION SCIENCES DIVISION OF STRUCTURAL MECHANICS ISRN LUTVDG/TVSM--16/7162--SE (1-47) | ISSN 0281-6679 LICENTIATE DISSERTATION Copyright © 2016 Division of Structural Mechanics, Facu
https://www.byggmek.lth.se/fileadmin/byggnadsmekanik/publications/tvsm7000/web7162.pdf - 2026-09-22
Patienter med misstänkt hjärtinfarkt genomgår ofta hjärtscintigrafi för att undersöka den regionala förändringen av blodets passage genom hjärtmuskeln. Orsaken till de sjukliga förändringarna kan antingen vara ischemi (nedsatt blodflöde pga förkalkningar i blodkärl) eller infarkt (celldöd i muskulaturen). För att utföra en hjärtscintigrafiundersökning används ett radioaktivt läkemedel (99Tcm-Sesta"The purpose of this study was to evaluate the benefit of commercial quantification software in perfusion SPECT imaging by simulating a group of patients and their corresponding SPECT acquisitions using a computer phantom and a Monte Carlo program. Based on decisions from experienced physicians and their visual interpretation of the simulated patient images, without and with addition of the i
Vegetation fire is one of the naturally occurring disturbances within the Earth system, changing vegetation dynamics and modulating carbon storage in the terrestrial biosphere. While fires are essential to many ecosystems, fire dynamics have been increasingly shaped by human actions since the late eighteenth century. The main drivers behind those changes are climate change and direct human activit
Populärvetenskaplig sammanfattning: Echinodermerna räknas som en mycket viktig del av den marina faunan. Bland echinodermerna återfinns djur som sjöstjärnor, sjöborrar, ormstjärnor och sjöliljor. Gemensamt för dessa är att de alla byggs upp av ett skelett av mindre delfragment, plåtar, där byggnadskomponenten för själva "skelettet" är kalcit. Kalcit är ett mineral som förekommer som en vPhosphatization of late Early Ordovician echinoderm fragments from N Öland has resulted in excellent preservation of the echinoderm stereom ultra structure. The stereom investigated shows a close relationship to different types found in recent echinoderms. The several different types of phosphatic preservation found have been controlled by diagenetic relationships. The original stereom structures
An important contributor to non-exhaust emissions in urban areas is airborne particulate matter originating from brake systems. A well-established way to test such systems in industry is to use inertia dynamometer benches; although they are quite expensive to run. Pin-on-disc tribometers, on the other hand, are relatively cheap to run, but simplify the real system. The literature indicates promisi
Popular Abstract in Swedish Bröd har varit ett av våra viktigaste baslivsmedel sedan antiken (700 f.Kr. – 400 e.Kr.) och kommer med all sannolikhet också fortsätta att vara en viktig del av vår föda även i framtiden. Det i Sverige rekommenderade dagliga intaget (RDI) av kostfiber är 25-35g. Utav dessa kostfibrer bör hälften komma från bröd (33%) och andra spannmålsprodukter (17%), vilket motsvararBread products are one of the most common and important foods in our daily diet, and have been since ancient times. Although it has a long history and comes in many variations, the staling phenomenon of bread is still not fully known. Staling is a complex phenomenon that includes all the physical and sensorial changes occurring in bread during storage. To gain a better understanding of staling, di
We show that conformational entropies calculated for five proteins and protein-ligand complexes with dihedral-distribution histogramming, the von Mises approach, or quasi-harmonic analysis do not converge to any useful precision even if molecular dynamics (MD) simulations of 380-500 ns length are employed (the uncertainty is 12-89 kJ mol(-1)). To explain this, we suggest a simple protein model inv
Prenatal diagnosis in the third pregnancy of a mother who already had one healthy son and one son with Fanconi anaemia (FA), revealed that her fetus was also affected with FA. At 22 weeks a maternal complaint about excessive fetal kicking starting at 15 weeks, focused our attention on the behaviour of the fetus, which was observed by means of real-time ultrasound for 30 min. The differentiation of
Brain hypothermia is at present the most effective neuroprotective treatment against brain ischemia in man. Ischemia induces a redistribution of proteins involved in synaptic functions, which is markedly diminished by therapeutic hypothermia (33 degrees C). Dendritic spines at excitatory synapses are motile and show both shape changes and rearrangement of synaptic proteins as a consequence of neur
In prediction (Wiener-, Kalman-) of a random normal process $\{X(t), t \in R\}$ it is normally required that the time $t_0$ from which prediction is made does not depend on the values of the process. If prediction is made only from time points at which the process takes a certain value $u,$ given a priori, ("prediction under panic"), the Wiener-prediction is not necessarily optimal; optimal should
In the work described in the present thesis, laser techniques for combustion engine diagnostics were developed and applied. The main techniques were laser-induced incandescence (LII) and laser-induced fluorescence (LIF), used for both flame and engine diagnostics. A novel technique was developed, one in which the relative fuel distribution, as measured by planar laser-induced fluorescence (PLIF),
This paper presents a new technique to coordinate distributed load switching in order to restore the voltage during disturbed conditions. The technique of today is mainly based on load shedding, but the restoration of the load is manually controlled. With increased and intelligent signal analysis in the distribution and transmission systems it is possible to switch load automatically, both on and
