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Multiple-input multiple-output (MIMO) systems operating at frequencies in the upper VHF and lower UHF region is attractive for peer-to-peer communication applications where robustness is of high importance, e.g., in tactical networks and emergency response systems. When designing and evaluating such systems, knowledge of realistic propagation conditions is required. This paper presents results fro
Stage models were prevalent in developmental psychology in the past, but have recently been subjected to much criticism. We propose “rehabilitation”, defining semiotic stage as a (not necessarily stable) period characterized by the clear establishment of a novel semiotic capacity, which may “dominate” the communication of the child at this stage, but does not replace capacities from previous
Under första terminen på kemiteknik-programmet läser teknologerna matematik, kemi och kemiteknik. Kemiteknik är ett helt nytt ämne för teknologerna jämfört med de övriga. Den beräkningsmässiga delen av kemitekniken läses under 2 läsperioder. Ett didaktiskt projekt[1] har utförts där teknologernas förståelse av grundläggande begrepp undersöktes med hjälp av intervjuer vid två tillfällen under kurse
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Popular Abstract in Swedish I denna avhandling har jag studerat frisättning samt effekter av GABA i de Langerhanska öarna i bukspottskörteln. GABA är en välkänd signalmolekyl i hjärnan och man vet att den där har en hämmande effekt på hjärncellerna. Detta betyder att GABAs effekter i hjärnan ofta är lugnande och/eller sövande. GABA finns även i höga koncentratitioner i de insulinproducerande β-celGABA (γ-aminobutyric acid) is a well-known inhibitory neurotransmitter in the CNS. GABA is also present at high concentrations in the insulin-producing β-cells in the islets of Langerhans, but its function there is less clear. GABA is believed to accumulate in SLMVs (synaptic-like microvesicles). These vesicles are different from the insulin-containing LDCVs (large dense-core vesicles). In this th
Shorter product life cycles (Ottosson, 2004) and more diversified offers of products (Olsmats, 2002) are market trends in the present day. Companies have to deal with customers with rapidly changing demands, who are looking for high-quality products at low costs. The ability to rapidly respond to such demands can be referred to as a company’s agile manufacturing abilities. Nagel and Dove (1991) su
The fracture process of a laminate is analysed. The laminate is a material used for packaging.It consists of a thin aluminium foil with a polymer coating. In both materials, the fractureprocesses are supposed to be dominantly localized plastic deformation. A Barenblatt regionis supposed to spread ahead of the crack tip. This region is analysed in its cross planeinvoking plane deformation conditionThe fracture process of a laminate is analysed. The laminate is a material used for packaging.It consists of a thin aluminium foil with a polymer coating. In both materials, the fractureprocesses are supposed to be dominantly localized plastic deformation. A Barenblatt regionis supposed to spread ahead of the crack tip. This region is analysed in its cross planeinvoking plane deformation condition
En samling texter med utgångspunkt i föredrag på konferensen Musik och samhälle 4 och 5 (2012-2013). Innehållet spänner över allt som har med musikens roll i vidare samhälleliga perspektiv: pedagogik, lärande, studieförbunds- och arrangörsverksamhet, text- och musikanvändande, hiphopkultur, kulturarvsfrågor i samband med musik.
A computational procedure has been developed to correlate the room fire test process and results from the proposed IS0 small scale laboratory tests. The analysis assumes that the full scale room fire test follows the proposed ASTM method, implying that the lining material covers ceiling and walls. The procedure requires that the heat release measurement response time of the test room is evaluated
