108,285 research outputs found
Joh. Stadler
No full textPorträt von Johann Jakob Stadler (1819-1855)J. S. Hegi gem. ; H. Meyer gest.Beim Künstler könnte es sich um Johann Salomon Hegi (1814-1896) handel
H. J. Stadler, Albertus Magnus de Animalibus libri XXVI. Nach der Kölner Urschrift
No full textDe Wulf Maurice. H. J. Stadler, Albertus Magnus de Animalibus libri XXVI. Nach der Kölner Urschrift. In: Revue néo-scolastique de philosophie. 23ᵉ année, n°89, 1921. p. 111
H. J. Stadler, Albertus Magnus de Animalibus libri XXVI. Nach der Kölner Urschrift
No full textDe Wulf Maurice. H. J. Stadler, Albertus Magnus de Animalibus libri XXVI. Nach der Kölner Urschrift. In: Revue néo-scolastique de philosophie. 23ᵉ année, n°89, 1921. p. 111
F. Böckle, E.-J. Kaelin, H. Ruh, K. Stadler, Kirche im Umbruch der Gesellschaft , 1970
No full textThils Gustave. F. Böckle, E.-J. Kaelin, H. Ruh, K. Stadler, Kirche im Umbruch der Gesellschaft , 1970. In: Revue théologique de Louvain, 1ᵉ année, fasc. 4, 1970. p. 464
Worte der Erinnerung an Herrn Hermann Hirzel-Stadler
No full textEnthält: Ansprache gehalten im Trauerhause, Mittwoch den 12. Januar 1916, von Pfarrer Paul Högger; † Hermann Hirzel-Stadler, Sparkassaverwalter (1850- 1916.), (Abdruck aus der „Sũrcher Wochen-Chronik* vom 29. Januar 1916.); Nachruf auf Herrn Hirzel-Stadler sel. gehalten in der Sitzung der Hülfsgesellschaft vom 3. Februar 1916, vom Präsidenten der Hülfsgesellschaft G. H. v. SCH. (verkũrzt wiedergegeben)
The musical collaboration between Wolfgang Amadeus Mozart and the Stadler brothers: a classic legacy
No full textThe aim of this paper is to enlighten the collaboration between the clarinetist brothers
Anton and Johann Stadler during the 18th century in Vienna. It investigates the
technical advances and development processes of the clarinet and the basset horn,
as well as their consolidation in the repertoire written for them. We will discuss the most
diverse formations, as well as the mutual influence between Mozart and other
composers with whom the Stadler brothers collaborated with and their lasting
contributions to the instrument's classical repertoire. It also aims to comprehend the
impact of the Stadler brothers within the relationships they maintained, with special
emphasis on their friendship with W. A. Mozart. The modifications proposed by the
Stadler brothers for the construction of the clarinet, later implemented by Theodor Lotz,
the wind instrument builder of the period, will be demonstrated. Lastly, the aim of the
research is also to unfold the legacy through the concerts performed by the Stadler
brothers during their lives, as well as their careers between 1773 and 1791, by
analyzing fragments of letters, concert posters, comparing texts, and cross-
referencing.O presente artigo explora a colaboração entre os irmãos clarinetistas Anton e Johann
Stadler durante o século XVIII em Viena. Investigamos os avanços técnicos e o
processo de amadurecimento do clarinete e do corno de basset, bem como sua
consolidação no repertório escrito para o instrumento. Abordaremos as mais diversas
formações, bem como a influência recíproca entre Mozart e outros compositores com
quem os irmãos Stadler conviveram e as contribuições duradouras para o repertório
clássico do instrumento. Busca-se também compreender os impactos dos irmãos
Stadler nas relações que mantinham, com especial ênfase para a amizade que
nutriam com W. A. Mozart. Serão expostas as mudanças propostas pelos irmãos
Stadler para a construção do clarinete, executadas posteriormente por Theodor Lotz,
o construtor de instrumentos de sopros do período. Por fim, o objetivo da pesquisa é
também compreender o legado através dos concertos realizados pelos irmãos Stadler
durante de suas vidas, bem como suas trajetórias entre 1773 e 1791, analisando
fragmentos de cartas, cartazes de concerto, comparando texto e cruzando
referências
[Alberti and Stadler - Brazil, Engine Drawing Card, Sketch No. 7698]
No full textThis engine drawing card was created for Alberti and Stadler, Class 4-10-C. Section H-4-C. Sketch 7698. Copy Spec. 25 F-163
Devices in single molecule electronics based on quantum interference and redox switches
No full textThe talk will be divided into two parts.
Part one is related to quantum interference [1],[2],[3]:
Since the concepts for the implementation of data storage and logic gates used in conventional electronics cannot be simply downscaled to the level of single molecule devices, new architectural paradigms are needed, where quantum interference (QI) effects are likely to provide an useful starting point. In order to be able to use QI for design purposes in single molecule electronics, the relation between their occurrence and molecular structure has to be understood at such a level that simple guidelines for electrical engineering can be established. We made a big step towards this aim by developing a graphical scheme that allows for the prediction of the occurrence or absence of QI induced minima in the transmission function and the derivation of this method and the range of its applicability will form the center piece of this presentation.
Part two is related to redox switches [4],[5],[6]:
In a joint experimental and theoretical investigation of the transport properties of organometallic molecules containing either Fe, Ru or Mo centers, hysteretic transport properties with continuous transitions were found for all compounds, and additionally an abrupt switching for Mo [4]. The latter could be modelled by taking into account bias-driven charging and explained by an oxidation/reduction mechanism mediated by a localized MO with weak coupling to the electrodes that is unique to the Mo compound because of the latter's spin-polarized ground state. Di-nuclear Fe compounds with various different anchor groups were also investigated, where excellent agreement of the trends in conductance between theory and experiment were obtained [5].
[1] R. Stadler, S. Ami, M. Forshaw, and C. Joachim, Nanotechnology 15, S115-S121 (2004).
[2] T. Markussen, R. Stadler, K. S. Thygesen, Nano Lett. 10, 4260-4265 (2010).
[3] R. Stadler, Nano Lett., 15, 7175-7176 (2015).
[4] F. Schwarz, G. Kastlunger, F. Lissel, C. Egler-Lucas, S. N. Semenov, K. Venkatesan, H. Berke, R. Stadler and E. Lörtscher, Nature Nanotechnology, in print (2015); DOI:10.1038/nnano.2015.255
[5] F. Schwarz, G. Kastlunger, F. Lissel, H. Riel, K. Venkatesan, H. Berke, R. Stadler and E. Lörtscher, Nano Lett. 14, 5932-5940 (2014).
[6] G. Kastlunger and R. Stadler, Phys. Rev. B 91, 125410 (2015)
Coherent tunneling and electron hopping in molecules with redox centers
No full textFor defining the conductance of single molecule junctions with a redox functionality in an electrochemical cell, two conceptually different electron transport mechanisms, namely coherent tunnelling and vibrationally induced hopping compete with each other. For a direct comparison, it has to be ensured that the crucial quantities obtained from electronic structure calculations, i.e. the transmission function T(E) [1], in Landauer theory, and the transfer integral [2], the reorganisation energy and the driving force in Marcus theory, are derived from similar grounds [3]. We perform density functional theory calculations for the conductance corresponding to both transport mechanisms for junctions with the central molecule containing Ru centers, and we extrapolate our results in order to define the critical length for the transition point of the two regimes.
In a joint experimental and theoretical investigation of the transport properties of organometallic molecules containing either Fe, Ru or Mo centers, hysteretic transport properties with continuous transitions were found for all compounds, and additionally an abrupt switching for Mo (Figure 1) [4]. The latter could be modelled by taking into account bias-driven charging and explained by an oxidation/reduction mechanism mediated by a localized MO with weak coupling to the electrodes that is unique to the Mo compound because of the latter's spin-polarized ground state. Di-nuclear Fe compounds with various different anchor groups were also investigated, where excellent agreement of the trends in conductance between theory and experiment were obtained [5]
Figure 1:
References:
[1] G. Kastlunger, R. Stadler, Phys. Rev. B 88, 035418, (2013).
[2] G. Kastlunger, R. Stadler, Phys. Rev. B 89, 115412, (2014).
[3] G. Kastlunger, R. Stadler, Phys. Rev. B 91, 125410, (2015).
[4] F. Schwarz, G. Kastlunger, F. Lissel, C. Egler-Lucas, S. N. Semenov, K. Venkatesan, H. Berke, R. Stadler and E. Lörtscher, Nature Nanotechnology 11, 170-176, (2016).
[5] F. Schwarz, G. Kastlunger, F. Lissel, H. Riel, K. Venkatesan, H. Berke, R. Stadler and E. Lörtscher, Nano Lett. 14, 5932-5940, (2014)
Net methane emissions from a landfill in Tandil, Argentina
No full textThe dataset contains the registered atmospheric methane (CH4) concentrations and the CH4 emissions estimated from a landfill in Tandil city, Argentina. The atmospheric CH4 concentrations (ppm) were for 10 periods of 15 days each. The air samples were collected by stainless steel containers with a volume of 0.5 liters, comprising an inlet valve and an air inlet restrictor. Besides, the CH4 fluxes from the surface of the landfill cells (mg m-2 h-1) were estimated by applying the static chamber technique. Finally, the gas vents' CH4 emissions (mg h-1) are shown. This was estimated using the gas tracer methodology with permeable capsules filled with SF6 installed inside each gas vent. All this information was useful for estimating the net methane emissions from the studied landfill and the potential electric energy that could be generated from the CH4 released from gas vents
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