Search results

This paper is concerned with the estimation of macroscopic properties such as the permittivity or the thermal conductivity of a composite material from the microstructure. A new method of estimating the microstructural parameters, such as the volume fraction of anisotropic two-phase composite material, is derived. The parameters are estimated using information from measurements of the random mater

For more than a century the research on the Antikythera Mechanism engaged scientists from a widerange of scientific disciplines searching for clues, in order to solve the mystery that this unique ar-chaeological find poses. The results so far have been spectacular enough to re-write the History ofTechnology providing new aspects on the degree of technological sophistication and scientific de-velop

För att kunna optimera idrottares säkerhet är det viktigt att tränare och medicinsk personal har utbildning i HLR och OB-ABCDE-principerna. För paraidrottare är det också viktigt att ha en plan för hur man tar bort utrustning vid ett trauma. Dessutom rekommenderas det att medicinsk personal alltid är närvarande vid tävlingar, och om möjligt även under idrottarnas träningspass.In order to optimize the safety of athletes, it is important that coaches and medical personnel have training in CPR and the OB-ABCDE principles. For para athletes, it is also important to have a plan for how to remove equipment in the event of a trauma. In addition, it is recommended that medical personnel are always present at competitions, and if possible also during the athletes' training sess

Research is needed to understand attitudes toward and adoption of the broad range of technologies available to support active and healthy aging in different generations. The present article gives an overview of the GenerationTech survey and sample, and describes attitudes and acceptance related to technology in general and as a means to support active and healthy aging. A national survey was condu

A strategy for the formation of thin reconstituted cellulose films (pure or modified)) with embedded receptors or embedded ion-selective components is reported. Cellulose nanofibril ribbons from sisal of typically 3-5 nm diameter and 250 nm length are reconstituted into thin films of typically 1.5-2.0 μm thickness (or into thicker free-standing films). Cellulose and cellulose nanocomposite films a

Using a model disordered mesoporous solid with a spatial arrangement of pore sizes analogous to a macroscopic 'ink-bottle', it has been shown that the hysteresis observed in NMR cryoporometry can be deconvoluted into separate single pore and pore-blocking contributions. The suggestion of pore-blocking effects has been confirmed using PFG NMR. Hence, percolation theory has been used, for the first

Objectives: This is a protocol for a Cochrane Review (intervention). The objectives are as follows:. To assess the effects of caffeine compared to aminophylline or theophylline in preterm infants at risk of apnea, with apnea, or in the peri-extubation phase.

Treatment of chronic osteomyelitis by radical debridement and filling of the dead space with antibiotic containing calcium sulphate/hydroxyapatite (CaS/HA) bone substitute has shown excellent long-term outcomes. However, in extensive infections, sessile bacteria may remain in bone cells or soft tissues protected by biofilm leading to recurrences. The primary aim of this study was to evaluate if sy

Popular Abstract in Swedish Sedan 1900-talets början har jordens medeltemperatur ökat med ca 0.9 grader, vilket bland annat resulterat i mer extremt väder, varmare världshav och att världens isar smälter med översvämningar av kustregioner som följd. Det är numera accepterat att denna temperaturökning med stor sannolikhet beror på människans utsläpp av växthusgaser, ex koldioxid (CO2). KoncentratioThe thesis work was performed with the aim of increasing knowledge and understanding of the combustion of oxygenated fuels and intermediates. This was accomplished in two steps: experimental measurements of the laminar burning velocity to expand current databases and development of a reaction mechanism. In the first part of the project, the laminar burning velocity of oxygenated fuels and interme