Search results for "EPO"

Yhteiskunnallinen tiede

2017

Kirja-arvostelu teoksesta Esa Väliverronen: Julkinen tiede. Vastapaino. Tampere 2016. nonPeerReviewed

Applying Semiautomatic Generation of Conceptual Models to Decision Support Systems Domain

2009

This paper presents a decision support system specification in the form of business use cases and a stereotyped conceptual model based on the specification. The use cases are based on generic user requirements and address cognitive biases. The specification can be used to set fixed and common terms among the project participants. Semiautomatic generation of the conceptual model is demonstrated with mixed results. While there are some shortcomings in the parsing and the result is dependent on the phrasing conventions used in the use cases, the conceptual model highlights the most essential entities in the domain and provides a base for further development phases. peerReviewed

Template Electrosynthesis of SnCo Nanowire Arrays for Lithium-ion Batteries

2010

Structural distortions in homoleptic (RE)4A (E = O, S, Se; A = C, Si, Ge, Sn): Implications for the CVD of tin sulfides

2001

The structures of Sn(SBut)4 and Sn(SCy)4 have been determined and adopt S4 and D2 conformations respectively; the anion [(PhS)Sn3]−, as its Ph4P+ salt, has a structure approaching Cs symmetry. In all three compounds, there are large variations in the ∠S–Sn–S within the same molecule, which have been rationalised in terms of the C–S–Sn–S–C conformations. For Sn(SR)4, the ∠S–Sn–S increases as the conformations change from trans, trans to trans, gauche and gauche, gauche, as the number of eclipsed lone pairs decreases and this rationale is shown to be applicable to a variety of A(ER)4 (A = C, Si, Ge, Sn; E = O, S, Se) and related [Mo(SR)4, Ga(SR)4−] systems. AM1 calculations have been used to …

Deposition of tin sulfide thin films from tin(iv) thiolate precursors

2001

AACVD (aerosol-assisted chemical vapour deposition) using (PhS)(4)Sn as precursor leads to the deposition of Sn3O4 in the absence of H2S and tin sulfides when H2S is used as co-reactant. At 450 degreesC the film deposited consists of mainly SnS2 while at 500 degreesC SnS is the dominant component. The mechanism of decomposition of (PhS)(4)Sn is discussed and the structure of the precursor presented.

A viable path toward a high energy density anode for lithium-ion batteries

2011

High-quality superconducting titanium nitride thin film growth using infra-red pulsed laser deposition

2018

Superconducting titanium nitride (TiN) thin films were deposited on magnesium oxide, sapphire and silicon nitride substrates at 700 °C, using a pulsed laser deposition (PLD) technique, where infrared (1064 nm) pulses from a solid-state laser were used for the ablation from a titanium target in a nitrogen atmosphere. Structural studies performed with x-ray diffraction showed the best epitaxial crystallinity for films deposited on MgO. In the best films, superconducting transition temperatures, T C, as high as 4.8 K were observed, higher than in most previous superconducting TiN thin films deposited with reactive sputtering. A room temperature resistivity down to ~17 μΩ cm and residual resist…

Photocatalytic partial oxidation of propylene in the presence of mesoporous organosilane-modified titanias

2014

Titania-Silica Mesoporosa per l’ossidazione Parziale Fotocatalitica di Propilene in Regime Gas-Solido

2013

Atmospheric Deposition Of Volcanogenic Major And Trace Elements On Mt. Etna (Italy)

2009

There are a variety of natural and anthropogenic sources of trace elements into the environment, and human activity has drastically changed the biogeochemical cycles and balance of several elements. In the last twenty years many efforts have been spent by the scientific community to better outline the levels of pollutants in the environment on a long-term basis, and to evaluate global large-scale changes. It is generally accepted that volcanic emissions are an important source of gases and particles to the atmosphere, contributing significantly to the natural geochemical cycles of all elements (Nriagu, 1989; Hinkley et al., 1999; Oppenheimer, 2003). Many studies have been carried out on the…