Search results for "NDAS"
showing 10 items of 253 documents
A prospective new diagnostic technique for distinguishing eruptive and noneruptive active regions
2019
This research has received funding from the Science and Technology Facilities Council (UK) through the consolidated grant ST/N000609/1 and the European Research Council (ERC) under the European Union Horizon 2020 research and innovation program (grant agreement No. 647214). This work used the DiRAC@Durham facility managed by the Institute for Computational Cosmology on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). The equipment was funded by BEIS capital funding via STFC capital grants ST/P002293/1, ST/R002371/1, and ST/S002502/1, Durham University and STFC operations grant ST/R000832/1. DiRAC is part of the National e-Infrastructure. S.L.Y. would like to acknowledge STFC for sup…
Sākumskolas skolēnu veselīga dzīvesveida veicināšana sporta un veselības stundās
2020
Darba autore Indra Spuņģe. Bakalaura darbs ir izstrādāts par tēmu “Sākumskolas skolēnu veselīga dzīvesveida veicināšana sporta un veselības stundās”. Pētījuma aktualitāti noteica mūsdienu sabiedrības problēma – bērnu aptaukošanās un mazkustīgs dzīvesveids, kas var novest pie saslimšanas ar dažādām hroniskām slimībām. Pētījuma mērķis ir analizēt teorētiskās atziņas, pētīt un analizēt veselīga dzīvesveida veicināšanas iespējas sākumskolā sporta un veselības stundās. Teorētiskajā daļā analizēti jautājumi, kas attiecas uz sākumskolas skolēniem par veselīgu dzīvesveidu un tā sekmēšanas iespējām. Pētījumā tiek apskatītas veselīga dzīvesveida veicināšanas iespējas 4.klases skolēniem. Autore piedāv…
Mācību projekti valodas prasmju un motivācijas attīstībai vācu valodas stundās 10. un 11. klasei
2021
Diplomdarbā tiek pētīts, kā mācību projektu izmantošana svešvalodu stundās veicina mācību stundu daudzveidību un paaugstina skolēnu motivāciju. Darba ievadā tiek formulēts mērķis, uzdevumi un hipotēze. Teorētiskajā daļā tiek pētīti jautājumi, kas pamato mācību projekta izmantošanu. Darba gaitā tika apskatītas terminu definīcijas – mācību motivācija, vissvarīgākās mācību projektu iezīmes un veidi, tēmu dažādības iespējas un idejas mācību projektiem, kā arī starpdisciplināri mācību projekti un to nozīme vācu valodas stundās. Diplomdarba praktiskajā daļā tiek izmantota gadījuma pētījuma metode. Pedagoģis-kā pētījuma mērķa grupa ir 10. klase. Svešvalodu prasmes līmenis: vispārējais līmenis (B1)…
Zvaigžņotā Debess: 2017/18, Ziema (238)
2017
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: I.Vilka. Starry Sky and Birds’ Journeys (abridged) ; N.Cimahoviča. Spirals of Saturn’s Rings (abridged) ; I.Šmelds. V Readings of Friedrich Zander ; DEVELOPMENTS in SCIENCE: K.Schwartz. Most Distant Galaxy Clusters and 3D Structure of the Universe ; DISCOVERIES: M.Gills. The Day when Multi-Messenger Astronomy Was Announced ; I.Pundure. ESO Telescopes and Hubble Observe the Source of Gravitational Waves for the First Time ; I.Eglītis. Asteroid “Balklavs” ; SPACE RESEARCH and EXPLORATION: R.Misa. Mission of Cassini – Discoveries to the Very End ; J.Jaunbergs. The Icy World Tethys ; OBSERVATORIES and INSTRUMENTS: M.Gills. The Giant Radio Telescope…
3D MHD MODELING of TWISTED CORONAL LOOPS
2016
We perform MHD modeling of a single bright coronal loop to include the interaction with a non-uniform magnetic field. The field is stressed by random footpoint rotation in the central region and its energy is dissipated into heating by growing currents through anomalous magnetic diffusivity that switches on in the corona above a current density threshold. We model an entire single magnetic flux tube, in the solar atmosphere extending from the high-beta chromosphere to the low-beta corona through the steep transition region. The magnetic field expands from the chromosphere to the corona. The maximum resolution is ~30 km. We obtain an overall evolution typical of loop models and realistic loo…
A fast multi-dimensional magnetohydrodynamic formulation of the transition region adaptive conduction (TRAC) method
2021
We have demonstrated that the Transition Region Adaptive Conduction (TRAC) method permits fast and accurate numerical solutions of the field-aligned hydrodynamic equations, successfully removing the influence of numerical resolution on the coronal density response to impulsive heating. This is achieved by adjusting the parallel thermal conductivity, radiative loss, and heating rates to broaden the transition region (TR), below a global cutoff temperature, so that the steep gradients are spatially resolved even when using coarse numerical grids. Implementing the original 1D formulation of TRAC in multi-dimensional magnetohydrodynamic (MHD) models would require tracing a large number of magne…
Chromospheric evaporation and phase mixing of Alfvén waves in coronal loops
2020
Phase mixing of Alfv\'en waves has been studied extensively as a possible coronal heating mechanism but without the full thermodynamic consequences considered self-consistently. It has been argued that in some cases, the thermodynamic feedback of the heating could substantially affect the transverse density gradient and even inhibit the phase mixing process. In this paper, we use MHD simulations with the appropriate thermodynamical terms included to quantify the evaporation following heating by phase mixing of Alfv\'en waves in a coronal loop and the effect of this evaporation on the transverse density profile. The numerical simulations were performed using the Lare2D code. We set up a 2D l…
Efficient Analysis of Arbitrarily Shaped Inductive Obstacles in Rectangular Waveguides Using a Surface Integral Equation Formulation
2007
In this paper we propose to use the Surface Integral Equation technique for the analysis of arbitrarily shaped Hplane obstacles in rectangular waveguides, which can contain both metallic and/or dielectric objects. The Green functions are formulated using both spectral and spatial images series, whose convergence behavior has been improved through several acceleration techniques. Proceeding in this way, the convergence of the series is not attached to the employment of any particular basis or test function, thus consequently increasing the flexibility of the implemented technique. In order to test the accuracy and numerical efficiency of the proposed method, results for practical microwave c…
Pedagogical translation, subtitles and ICTs: collaborative projects in L2classroom
2017
[EN] With this paper we offer a contribution to the debate on the importance of translation for learning a second language in the classroom. We exemplify its use as a didactic resource and as a learning tool. We show the methodological bases for a proposal consisting of three collaborative translation projects. This projects were carried out in higher education, namely in a Catalan as a Foreign Language (CLE) classroom at the Université de Picardie Jules Verne (France) in face-to-face and virtual scenarios. These practices are grouped into three different didactic sequences that deal with a given discursive genre –a music video, a commercial and a recipe– and that are realized as a teamwork.
Bent-core liquid crystalline cyanostilbenes: fluorescence switching and thermochromism
2015
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