With the increased concern about energy security, air pollution and global warming, the possibility of using polymer electrolyte fuel cells (PEFCs) in future sustainable and renewable energy systems has achieved considerable momentum. A computational fluid dynamic model describing a straight channel, relevant for water removal inside a PEFC, is devised. A volume of fluid (VOF) approach is employed

We present measurements of the elliptic flow (v2) as a function of transverse momentum (pT), pseudorapidity (η), and centrality in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. The beam-energy scan of d+Au collisions provides a testing ground for the onset of flow signatures in small collision systems. We measure a nonzero v2 signal at all four collision energies, which, at midrapidity and l

We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at sNN=2.76 TeV. Femtoscopy is used to measure the space-time characteristics of particle production from the effects of quantum statistics and final-state interactions in two-particle correlations. Kaon femtoscopy is an important supplement to that of pions because

From the horizons of media and communication studies, this article begins with the premise that the media, and the in particular theWeb, as central features of a turbulent late modernity. The Web has become ubiquitous and central to our sense of who we are, how we live, think, relate to others and experience the world. This process of mediatization is complex and historically without parallel; it

The paper reflects upon recent international research at Zvejnieki in northern Latvia, a renowned complex of a burial ground and two settlement sites used in the Mesolithic and Neolithic. Since its discovery and first excavations in the 1960s, Zvejnieki continues to produce evidence that provides new grounds for understanding mortuary practises and ancient lifeways. This information is relevant fo

Permanent implants made of titanium or its alloys are the gold standard in many orthopedic and traumatological applications due to their good biocompatibility and mechanical properties. However, a second surgical intervention is required for this kind of implants as they have to be removed in the case of children that are still growing or on patient's demand. Therefore, magnesium-based implants ar

Background: Cerebrovascular disease (CVD) and amyloid-β (Aβ) often coexist, but their influence on neurodegeneration and cognition in predementia stages remains unclear. We investigated the association between CVD and Aβ on neurodegenerative markers and cognition in patients without dementia. Methods: We included 271 memory clinic patients with subjective or objective cognitive deficits but withou