Mostrando ítems 1-10 de 2023
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Role of Zn0 electron-selective layers in regular and inverted bulk heterojunction solar cells
(American Chemical Society, 2011-02)
Here the role of metal oxide (ZnO) electron-selective layers in the operating mechanisms of bulk-heterojunction polymer−fullerene solar cells is addressed. Inverted as well as regular structures containing ZnO layers at ...
Cross-validation of the emotion awareness questionnaire for children in three populations
(SAGE Publications, 2011-10)
The main aim of the present study was to examine the cross-cultural equivalence of a newly developed questionnaire, the Emotion Awareness Questionnaire (EAQ30) that assesses emotional awareness of children through ...
Electronic fluxes during diels-alder reactions involving 1,2-Benzoquinones: mechanistic insights from the analysis of electron localization function and catastrophe theory
By means of the joint use of electron localization function (ELF) and Thom's catastrophe theory, a theoretical analysis of the energy profile for the hetero-Diels-Alder reaction of 4-methoxy-1,2-benzoquinone 1 and ...
Development of porous Ti6Al4V samples by microsphere sintering
Two differently sized microspheres were sintered at 1300 °C and 1400 °C from 2 to 8 h in stoneware, alumina, yttria and zirconia moulds. Selecting the appropriate material to be used as a mould remains a critical issue ...
Study of the rheological behaviour of monomodal quartz particle beds under stress: a model for the shear yield functions of powders
A model is proposed that describes the yield locus of powders. The model is based on the adhesive contact of elastic spheres theory developed by Johnson, Kendall, and Roberts (JKR model). The proposed model improves the ...
Space-Time Analogies in Optics
The so-called space-timeanalogy constitutes a source of inspiration to understand, engineer, and implement new systems for ultrafast optical signal processing based on concepts borrowed from the well-established field of ...
Semi-supervised probabilistic relaxation for image segmentation
In this paper, a semi-supervised approach based on probabilistic relaxation theory is presented. Focused on image segmentation, the presented technique combines two desirable properties; a very small number of labelled ...
Cuboidal Mo3S4 and Mo3NiS4 Complexes Bearing Dithiophosphates and Chiral Carboxylate Ligands: Synthesis, Crystal Structure and Fluxionality
New triangular Mo and W cluster complexes incorporating (S)-lactic acid (HLac), [Mo3S4(μ-Lac)(dtp)3(py)] (1) and [W3S4(μ-Lac)(dtp)3(py)] (2), were prepared [dtp = (EtO)2PS2]. Analogous synthetic procedures were adapted for ...
Use of coatings to minimise acid emissions during ceramic tile firing.
(© 2011 Elsevier, 2011-06)
The manufacture of traditional ceramic products (ceramic tiles, roof tiles, and bricks) is often associated with the emission of F, Cl, and S compounds during the firing stage. According to the literature, fluorine emissions ...
A Simple Route to Chelating, Structurally Different Triazole-Based Bis(N-heterocyclic carbene) Ligands and Their Coordination to PtIl
Two new bis(triazolium) salts have been prepared and used as N-heterocyclic carbene (NHC) precursors. The structure of the salts is highly dependent on the synthetic route, which implies the sequential alkylation of two ...