Search results for "11"
showing 10 items of 17291 documents
Structure and dynamics in liquid bismuth and Bin clusters: A density functional study
2014
Density functional/molecular dynamics simulations with more than 500 atoms have been performed on liquid bismuth at 573, 773, 923, and 1023 K and on neutral Bi clusters with up to 14 atoms. There are similar structural patterns (coordination numbers, bond angles, and ring patterns) in the liquid and the clusters, with significant differences from the rhombohedral crystalline form. We study the details of the structure (structure factor, pair, and cavity distribution functions) and dynamical properties (vibration frequencies, diffusion constants, power spectra), and compare with experimental results where available. While the three short covalent bonds typical to pnictogens are characteristi…
The distant present
2013
Introduction, Tuula Vaarakallio & Taru Haapala, 4 Taking Distance as a Condition of the Study of Politics, Kari Palonen, 12 Anti-Parliamentarism of the French Front National Party, Tuula Vaarakallio, 28 The Rhetoric of National Emergency: 9/11 versus Weimar Republic, Anna Kronlund , 48 The Mockery of Adbusters Magazine in the Classical Tradition of Political Rhetoric, Taru Haapala, 71 “Time to be heard”: The Rhetorical Strategies of the Northern Ireland Women’s Coalition, Anna Björk, 90 ‘Dubliners’ in the European Union – A Perspective on the Politics of Asylum-Seeking, Hanna-Mari Kivistö, 106 Notes on Contributors, 129
Oppdragelsessyn i endring? : En komparativ studie av populære oppdragelsesbøker utgitt i Norge i perioden 1950-2000
2017
Masteroppgave pedagogikk PED511 - Universitetet i Agder 2017 The topic of this assignment is to study if the view of parenting has changed in Norway. There have been many discussions about parenting and what it entails. This study is limited to popular books that have been released in Norway between 1950 and 2000. The parenting books emphasise different aspects in the children’s upbringing and how that positively affects their development. The primary research question is to examine the views of parenting and its development from four books from the selected period: “Barneoppdragelse” by Lise Østlyngen (1950), “Barn og foreldre: barneoppdragelse i praksis” by Hambro & Moa (1966), “Elsker du…
Influenza delle infrastrutture ecologiche poste ai margini del vigneto su Empoasca vitis (Goethe) (Homoptera: Cicadellidae) e il suo parassitoide Ana…
2014
È ormai opinione diffusa che la diversità vegetale all’interno degli agrosistemi favorisca il mantenimento dell’entomofauna utile ai fini di un contenimento naturale di fitofagi. In quest’ambito, il presente lavoro ha riguardato uno studio, sulle popolazioni di Empoasca vitis e del suo parassitoide Anagrus atomus in un’azienda viticola sita nel comprensorio di Salemi (TP) (446 m s.l.m.) a conduzione biologica prendendo in considerazione due appezzamenti, uno con ai margini siepi di rovo, rosa canina e rosmarino e l’altro in assenza di siepi. Nel periodo vegeto-produttivo della vite (marzo-ottobre 2012), si è valutata l’influenza della specie vegetale e della variazione della distanza delle …
Aktywność sołectw wspierających rozwój społeczny w ramach Programu Odnowy Wsi w latach 2013-2015
2018
Odnowa wsi jako metoda rozwoju stanowi jeden ze sposobów osiągania celów rozwojowych, rozumianych nie tylko w kontekście poprawy jakości infrastruktury, ale poprawy szeroko rozumianej jakości życia, której nie osiągniemy bez zaangażowania samych mieszkańców. Celem artykułu jest przedstawienie Programu Odnowy Wsi (na przykładzie województwa opolskiego) jako elementu przyczyniającego się do rozwoju kapitału społecznego, czego wyrazem może być liczba przedsięwzięć realizowanych przez poszczególne sołectwa. Zostały przeanalizowane sprawozdania sołectw (około 600 rocznie) z realizacji programu w latach 2013-2015. Podstawową metodą prezentacji wyników badań jest analiza opisowa z użyciem metod il…
Aproximación al maltrato infantil en la familia en la Comunidad Valenciana: Comparativa 1998-2008
2014
La presente Tesis Doctoral intenta exponer la problemática del maltrato infantil en el contexto familiar en la Comunidad Valenciana a partir de la comparativa anual de los expedientes abiertos por Servicios Sociales soblre maltrato infantil en la familia durante los años 1998 y 2008. El objetivo general del estudio de esta temática, es identificar y poner de manifiesto los cambios ocurridos sobre el tema tras diez años de medidas sociales y programas de intervención en el campo de la prevención y la intervención. Para ello, se presenta una estructura en la tesis doctoral dividido en cinco apartados. En el primero de ellos, se realiza una recopilación teórica del maltrato infantil en la fami…
High-Reynolds-number turbulent cavity flow using the lattice Boltzmann method
2018
We present a boundary condition scheme for the lattice Boltzmann method that has significantly improved stability for modeling turbulent flows while maintaining excellent parallel scalability. Simulations of a three-dimensional lid-driven cavity flow are found to be stable up to the unprecedented Reynolds number $\mathrm{Re}=5\ifmmode\times\else\texttimes\fi{}{10}^{4}$ for this setup. Excellent agreement with energy balance equations, computational and experimental results are shown. We quantify rises in the production of turbulence and turbulent drag, and determine peak locations of turbulent production.
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
2016
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We report on designing and implementing a lattice Boltzmann solver for multi-GPU systems that achieves 1.79 PFLOPS performance on 16,384 GPUs. To achieve this performance, we introduce a GPU compatible version of the so-called bundle data layout and eliminate the halo sites in order to improve data access alignment. Furthermore, we make use of the possibility to overlap data transfer between the host central processing unit and the device GPU with com…
Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV
2019
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. The first measurement of dielectron (e + e −) production in central (0 – 10 %) Pb – Pb collisions at √sNN=2.76TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron decays in the invariant-mass range 0 < mee < 3.5 GeV / c2. The ratio of data and the cocktail of hadronic contributions without vacuum ρ0 is measured in the invariant-mass range 0.15 < mee < 0.7 GeV / c2, w…
Hölder regularity for the gradient of the inhomogeneous parabolic normalized p-Laplacian
2018
In this paper, we study an evolution equation involving the normalized [Formula: see text]-Laplacian and a bounded continuous source term. The normalized [Formula: see text]-Laplacian is in non-divergence form and arises for example from stochastic tug-of-war games with noise. We prove local [Formula: see text] regularity for the spatial gradient of the viscosity solutions. The proof is based on an improvement of flatness and proceeds by iteration.