The first part of the investigation is related to the heat transfer and fluid flow problem inside ribbed ducts with a square cross section. The typical applications of this problem are in the cooling of gas turbine blades and guiding vanes. The second part is related to application of intercoolers in gas turbine systems. The intercooling is performed via intercoolers that usually are water-air hea

The cerebrovascular lesions of severe chronic hypertension were studied by light microscopy in perfusion-fixed, subserially sectioned brains from stroke-prone spontaneously hypertensive rats (SHRSP). The leakage and spread of plasma proteins were visualized by immunohistochemical detection of extravasated fibrinogen and by using an exogenous marker (Evans blue injected i.v.) for blood-brain barrie

We report the detection of quantum confinement in single InAs-InP core shell nanowires. The wires, having an InAs core with similar to 25 nm diameter, are characterized by emission spectra in which two peaks are identified under high excitation intensity conditions. The peaks are caused by emission from the ground and excited quantized levels, due to quantum confinement in the plane perpendicular

The presence of cholinergic nerve fibers in the brain vasculature has been a matter of controversy, partly due to the lack of a reliable histochemical marker. Accordingly, no distinct information about the origin and pathways for such fibers has been available. In the present study on the rat pial vasculature, utilizing a choline acetyltransferase (ChAT) antibody, which is able to demonstrate this

Rat bladder hypertrophy, induced by a partial ligation of the urethra, was used to study the accompanying changes of microvascular smooth muscle mechanics, pharmacology and morphology. A segment of a microarterial vessel to the bladder was taken from a defined anatomical location and studied in a wire myograph in vitro at the length for maximal isometric force development (Lmax). After 10 days of

A method for analysing the influence of profile errors upon load-sharing capabilities and mesh stiffness of spur gears is proposed. The analysis is based upon a static, two-dimensional finite element approach. The contacts between mating gear teeth are identified in the deformed state, and the nodal point density permits contact pressure distribution emulation for moderate to high load levels. In

Popular Abstract in Swedish Dagens industriella system är inte långsiktigt hållbara. För detta behövs bland annat fundamentala förändringar av hur samhällets resurser används. Detta gäller den totala volymen som förbrukas men också vilka ämnen som sätts i omlopp i samhället. Därutöver behövs ett mer rättvist utnyttjande av dessa resurser. Industriell ekologi är den vetenskap som studerar de förändToday's industrial systems are regarded to have unsustainable characteristics. In order to acquire a more sustainable state, fundamental changes are needed in the qualitative and quantitative aspects of the resource flows associated with such systems. These need to go hand in hand with a more equitable distribution of the benefits and burdens associated with such resource use. The identification a

Popular Abstract in Swedish Stroke är en av de ledande dödsorsakerna i västvärlden och det finns idag ingen behandling för funktionell återställning. Efter stroke ökar den striatala neurogenesen och de nybildade neuroblasterna vandrar mot det skadade området. Denna respons har ansetts vara av akut och övergående art. I denna avhandling har en modell av experimentell stroke använts (2 h of middle cStroke is a leading cause of death and disability for which there is no treatment for functional recovery. Following stroke, striatal neurogenesis is increased, with newly formed neuroblasts migrating towards the damage. This response has so far been considered acute and transient. In this thesis, a model of experimental stroke (2 h of middle cerebral artery occlusion, MCAO) used to study three a

Recycling as part of environmental considerations has become a common feature in architecture and building construction. Recycling of building waste can make a considerable contribution to reducing the total environmental impact of the building sector. To increase the scope for recycling in the future, aspects of recycling have to be included in the design phase. Design for disassembly is a key ta

Summary This report presents results from the project ”Converting direct resistive electric heating into district heating - customer related aspects” conducted at the division of Efficient Energy Systems, Department of Energy Sciences, Lund University. The main objective of this study was to investigate how specific households within one housing area (Sandsbro in Växjö with 110 one-family houses)

OBJECTIVE: This study of myocardial infarction (MI) amongst urban women has sought to assess whether there are differences in fatal outcome, in-hospital respectively out-of-hospital, between residential areas defined in terms of socio-economic circumstances. DESIGN: Register-based surveillance study 1986-95. SETTING: Seventeen residential areas in the city of Malmo, Sweden. SUBJECTS: Women 20-74 y

Treatment of [Ru-3(CO)(10)(mu-dppm)] (4) [dppm = bis(diphenylphosphido)methane] with tetramethylthiourea at 66 degrees C gave the previously reported dihydrido triruthenium cluster [Ru-3(mu-H)(2)(mu(3)-S)(CO)(7)(mu-dppm)] (5) and the new compounds [Ru-3(mu(3)-S)(2)(CO)(7)(mu-dppm)] (6), [Ru-3(mu(3)-S)(CO)(7)(mu(3)-CO)(mu-dppm)] (7) and [Ru-3(mu 3-S)eta(I)-C(NMe2)(2)}(CO)(6)(mu(3)-CO)(mu-dppm)] (8)

There is convincing evidence for a decreased risk of breast cancer with increased physical activity. Uncertainties remain, however, about the role of different types of physical activity on breast cancer risk and the potential effect modification for these associations. We used data from 218,169 premenopausal and postmenopausal women from nine European countries, ages 20 to 80 years at study entry