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We report on a low-temperature magnetoconductance study to characterize the electrical and spin transport properties of n-type InAs nanowires grown by chemical beam epitaxy. A gate-controlled crossover from weak localization to weak antilocalization is observed. The measured magnetoconductance data agrees well with theory for one-dimensional quasi-ballistic systems and yields a spin relaxation len
Det svenska samhället har utvecklats till ett krissamhälle. Ett av dess kännetecken är att politiken blir annorlunda. Realpolitik och politisk retorik glider isär. Kanske är det en postmodern politik vi ser växa fram när politikens båda världar, den reella respektive virtuella politiska verkligheten, differentieras alltmer? Kravet på sammanhang dem emellan försvagas, förmedlingarna mellan dem uppl
Jurisdiction is a composite term referring to that which is right (jus) and that which is said (dicere). It is decisive for any consideration of jurisdiction whether one chooses to subordinate jus to dicere, or dicere to jus. As the law is always anterior to a pronouncement of justice based on it, the choice of subordination decides whether one lets the past rule over the present, or the present r
Popular Abstract in English The main reason that we humans exist at all is because of photosynthesis. The food we eat, the oxygen we breath, most of the energy that warms our homes and powers our electronics are all products of photosynthesis. Over millions of years, plants, algae and some bacteria have developed biomachinery to harness solar energy and thrive. They do this by fixing carbon into cAlmost all life on Earth depends on the products of photosynthesis — the biochemical process whereby solar energy is stored as chemical-rich compounds. The energy of captured photons is transferred through a network of pigment-protein complexes towards the reaction center. The reaction center is responsible for trans-membrane charge separation, which generates a proton motive force which drives al
The equation-based Modelica language allows the modeller to specify custom functions. The body of a function is an algorithm that contains procedural code to be executed when the function is called. This language feature is useful for many applications; however, the insertion of a function often prevent model optimizations that require the model to be formulated in purely declarative form by equat
In this paper, we present a method of constructing new families of LDPC block code ensembles formed by terminating irregular protograph-based LDPC convolutional codes. Using the accumulate-repeat-by-4-jagged-accumulate (AR4JA) protograph as an example, a density evolution analysis for the binary erasure channel shows that this flexible design technique gives rise to a large selection of LDPC block
We present a decomposition approach to a class of social welfare optimization problems for optimal power flow in multi-region electricity networks. The electricity network is decomposed into multiple regions which decide independently over the amount of power produced within the region and exchanged with neighboring regions. We decompose the overall power flow (or social welfare) optimization into
