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In Proton Exchange Membrane Fuel Cell (PEMFC) systems, an intercooler contributes to proper thermal management of the reactant air into the cathode. However, the structure/performance of it is not clear yet. In this paper, two case studies concerning an intercooler in a 100 kW PEMFC system are carried out. Plate-fin and tube-fin heat exchangers are analyzed as the intercooler, in terms of volume,
Popular Abstract in English Proteins are molecular machines of the human body which regulate all life sustaining processes such as energy production, communication, transport of essential molecules, defense against microbes, etc. They are built by small molecular units called amino acids, bound together like pearls on a necklace. Each amino acid consists of a common part and a unique side chain. TAnisotropic protein interactions have a strong orientation dependence resulting from an uneven distribution of charged and hydrophobic residues on the protein surface. They play an important role in protein behaviors such as protein association, surface adsorption and phase separation. In this thesis, we have studied the effect of anisotropic interactions on the behavior of various proteins mainly
This paper summarizes the recent calculations of the masses and decay constants of the pseudoscalar mesons at the two-loop level, or NNLO, in Partially Quenched Chiral Perturbation Theory (PQxPT). Possible applications include chiral extrapolations of Lattice QCD, as well as the determination of the low-energy constants (LEC:s) of QCD
Popular Abstract in Swedish Under fostertiden är fostret beroende av tillförsel av syre och näringsämnen via moderkakan och navelsträngen, och koldioxid som bildas vid dess ämnesomsätt-ning avges i motsatt riktning. Under förlossningen ökar trycket i livmodern vid varje värk, så att tillförseln av syrerikt blod från modern till moderkakan till-fälligt nedsätts. Det finns också en risk att navelstrAcidaemia at birth is a result of an impaired intrauterine gas exchange. Between 1988 and 1996, acid-base balance in cord artery blood pH was assessed in 23 016 of 27 064 newborns (85%). Obstetric risk factors for acidaemia (cord artery pH < 7.05) were identified in a case-control study. Independent risk factors were breech delivery, administration of oxytocin or pethidine, cord entanglement and m
A pattern reconfigurable stacked microstrip patch antenna is presented for 60GHz central frequency. The antenna reconfigurability is realized using shorting pins in the antenna radiating aperture. Investigation is presented for different shorting pins locations. Influence on the antenna radiation pattern and return loss is studied. Measurement results for the antenna prototype agree with simulatio
Introduction Many kinds of footwear are used for various purposes in the workplace in Japan. Careful selection of footwear is needed to protect workers from coldness and to keep the performance of workers in cold workplace where employees have to work under -20℃. On the other hand, safety boots with high heat conductivity from foot to outside are needed for the workers in hot environments. But the
This study investigates volatility spillovers to electric power fromlarge exogenous shocks in the prices of gas, coal, and carbon emissionallowances in the German energy market. Our sample ranges from 2008 to 2016and covers periods of different market conditions. We use a general VAR-BEKKmodel and the volatility impulse response function methodology to analyze andevaluate the spillover effects. Sp
We have developed a tandem of undergraduate courses for teaching XP and coaching of XP teams. This paper focuses on the coaching course and the coaching practices we have developed. The tandem of courses enables us to give a challenging and interesting course for the coaches, and, at the same time, allows us to afford on-site coaches for the younger students, providing them with a high quality env
We consider positivity preserving model order reduction of SISO linear systems. Whereas well-established model reduction methods usually do not result in a positive approximation, we show that a symmetry characterization of balanced truncation can be used to preserve positivity after performing balanced truncation. As a consequence, the method is independent of the initial realization and always r
Much time and effort is wasted both within and between industry, commerce, government and professional and academic institutions when ambiguities arise as a result of the inability to differentiate adequately between such terms as 'change control' and 'change management'; 'configuration management policy' and 'configuration management plan' and similar terms which form an interface between various
Being stimulated by the recent identification of the two-phonon wobbling excitation, first I make a brief survey of various two-phonon states in nuclear physics, in connection with experimental observations. Then, I discuss the wobbling-phonon excitation in the presence of particle alignments, which is nicely pinned down in the recent experiments of the nucleus Lu-163(71)92.
I dagens läge finns en hel del kunskap om olika aspekter av miljöanpassade handlingssätt. Samtidigt har forskningen givit upphov till insikter om nya, ofta komplicerade frågor om förhållandet mellan människors värderingar, attityder i miljöfrågor och omställning till mera miljöanpassat beteende. I det här kapitlet kommer den kunskap om människors miljöhandlingar som finns i dag att diskuteras och
