Search results for "Funk"
showing 10 items of 623 documents
Heiligt der Zweck die Mittel? : zur Natur der schwedischen und finnischen Untertitel im Fernsehen
2001
Atomistic Insights into Nitrogen-Cycle Electrochemistry: A Combined DFT and Kinetic Monte Carlo Analysis of NO Electrochemical Reduction on Pt(100)
2017
Electrocatalytic denitrification is a promising technology for the removal of NOx species in groundwater. However, a lack of understanding of the molecular pathways that control the overpotential and product distribution have limited the development of practical electrocatalysts, and additional atomic-level insights are needed to advance this field. Adsorbed NO has been identified as a key intermediate in the NOx electroreduction network, and the elementary steps by which it decomposes to NH4+, N2, NH3OH+, or N2O remain a subject of debate. Herein, we report a combined density functional theory (DFT) and kinetic Monte Carlo (kMC) study of this reaction on Pt(100), a catalytic surface that i…
Unique continuation results for certain generalized ray transforms of symmetric tensor fields
2022
Let $I_{m}$ denote the Euclidean ray transform acting on compactly supported symmetric $m$-tensor field distributions $f$, and $I_{m}^{*}$ be its formal $L^2$ adjoint. We study a unique continuation result for the normal operator $N_{m}=I_{m}^{*}I_{m}$. More precisely, we show that if $N_{m}$ vanishes to infinite order at a point $x_0$ and if the Saint-Venant operator $W$ acting on $f$ vanishes on an open set containing $x_0$, then $f$ is a potential tensor field. This generalizes two recent works of Ilmavirta and M\"onkk\"onen who proved such unique continuation results for the ray transform of functions and vector fields/1-forms. One of the main contributions of this work is identifying t…
The British-Irish Border in the Context of Brexit
2020
Przedmiot artykułu stanowią rozważania dotyczące konsekwencji Brexitu dla funkcjonowania granicy pomiędzy Irlandią a Irlandią Północną. Autor wyjaśnia, czym jest ta granica w warunkach, kiedy Wielka Brytania nie jest już członkiem Unii Europejskiej, a więc przebieg tej granicy może stanowić barierę dla swobodnego przepływu osób, towarów, kapitału i usług. Artykuł jednocześnie podkreśla, że wyjście Wielkiej Brytanii z Unii Europejskiej będzie miało istotny wpływ na zmianę funkcji tej granicy, która od tej chwili nie będzie już wewnętrzną, lecz zewnętrzną granicą Unii. Celem artykułu jest zatem analiza konsekwencji tej zmiany z równoczesnym wskazaniem różnych modeli funkcjonowania Wielkiej Br…
Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni
2022
Collinear laser spectroscopy is performed on the nickel isotopes Ni58-68,70, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii Rc are extracted and compared to theoretical results. Three ab initio approaches all employ, among others, the chiral interaction NNLOsat, which allows an assessment of their accuracy. We find agreement with experiment in differential radii δ⟨rc2⟩ for all employed ab initio methods and interactions, while the absolute radii are consistent with data only for NNLOsat. Within nuclear density functional theory, the Skyrme functional SV-min matches experiment more closely than the Fayans functional Fy(Δr,HFB). Collinear …
Nuclear moments of indium isotopes reveal abrupt change at magic number 82
2022
In spite of the high-density and strongly correlated nature of the atomic nucleus, experimental and theoretical evidence suggests that around particular 'magic' numbers of nucleons, nuclear properties are governed by a single unpaired nucleon1,2. A microscopic understanding of the extent of this behaviour and its evolution in neutron-rich nuclei remains an open question in nuclear physics3-5. The indium isotopes are considered a textbook example of this phenomenon6, in which the constancy of their electromagnetic properties indicated that a single unpaired proton hole can provide the identity of a complex many-nucleon system6,7. Here we present precision laser spectroscopy measurements perf…
The Syntheses and Vibrational Spectra of 16O- and 18O-Enriched cis-MO2 (M=Mo, W) Complexes
2018
In this contribution, we report convenient synthetic approaches for obtaining 16O/18O‐enriched dioxidometalVI complexes, MO2(L) (W, Mo), with a linear, tetradentate amine phenolate ligand N,N′‐dimethyl‐N,N′‐bis(2‐hydroxy‐3,5‐dimethylbenzyl)ethylenediamine (H2L) and describe their characterization by IR and Raman spectroscopy complemented by DFT computational analysis. The isotopologues of WO2(L) were made of tungstenVI trisglycolate W(eg)3 (eg=1,2‐ethanediolate dianion) and ligand H2L in the presence of either H2[16O] or H2[18O], whereas Mo16O2(L) was made using Na2MoO4⋅2H2O which was converted to Mo18O2(L) by oxido substitution using H2[18O]. The complementary IR and Raman analyses show th…
The Syntheses and Vibrational Spectra of 16 O- and 18 O-Enriched cis -MO2 (M=Mo, W) Complexes
2018
Many-particle theory for time-dependent quantum transport in nanostructures
2012
During the recent decades, molecular electronics has established its place as one of the promising fields in the nanoscience. The possibility to manufacture and control molecular junctions where single molecules are squeezed between the conducing electrodes has opened up new possibilities to develop nanoscale devices which could be employed as building blocks for future nanoelectronic applications. The driving force for this new branch of physics has been the experimental advances but also theoretical methods have been under intensive study and many theoretical tools have been developed to understand the electron transport processes in the nanoscale systems. This thesis focuses on developin…
Pamatskola - daudzfunkcionāla izglītības un kultūras telpa mūsdienās
2016
Diplomdarbā “Pamatskola-daudzfunkcionāla izglītības un kultūras telpa mūsdienās” padziļināti analizējot pieejamo literatūru, tiek apskatīta izglītības iestāžu vēsturiskā attīstība, pētīta jēdziena izpratne par pamatskolu kā daudzfunkcionālu telpu, kā arī jaunākās atziņas par mācīšanās procesa organizāciju no interjera dizaina viedokļa. Empīriskajā daļā tiek veikts salīdzinošais pētījums, analizējot izglītības iestāžu interjera daudzfunkcionalitāti telpā. Diplomdarba apjoms ir 117.lpp. kurās ir iekļauts ievads, 4 nodaļas, 7 apakšnodaļas, literatūras saraksts ir ar 56 vienībām, 4 pielikumi. Radošajā daļā tiek izstrādāts interjera dizaina projekts Jelgavas 1.internātpamatskolai, pamatojoties u…