Search results for "AIC"
showing 10 items of 2470 documents
Flash infrared annealing as a cost-effective and low environmental impact processing method for planar perovskite solar cells
2019
Abstract For successful commercialization of perovskite solar cells, straightforward solutions in terms of environmental impact and economic feasibility are still required. Flash Infrared Annealing (FIRA) is a rapid method to fabricate perovskite solar cells with efficiencies >18% on simple, planar architecture, which allows a film synthesis in only 1.2 s, faster than the previous report based in a meso architecture and all of them without the usage of antisolvent. In this work, through a comparative study with the common lab-scale method, the so-called antisolvent (AS), the main photovoltaic parameters and working mechanisms obtained from impedance spectroscopy (IS) measurements show simil…
State of the art and prospects for halide perovskite nanocrystals
2021
Financiado para publicación en acceso aberto: Universidade de Vigo/CISUG Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photocatalysis. The ease with which metal-halide perovskites can be synthesized in the form of brightly luminescent colloidal nanocrystals, as well as their tunable and intriguing optical and electronic properties, has attracted researchers from different disciplines of science and technology. In the last few years, there has been a significant progress in the shape-controlled synthesis of …
Che cosa significa parlare a vuoto? Aristotele, il linguaggio e la logica arcaica
2004
Voisinages tubulaires épointés et homotopie stable à l'infini
2022
We initiate a study of punctured tubular neighborhoods and homotopy theory at infinity in motivic settings. We use the six functors formalism to give an intrinsic definition of the stable motivic homotopy type at infinity of an algebraic variety. Our main computational tools include cdh-descent for normal crossing divisors, Euler classes, Gysin maps, and homotopy purity. Under-adic realization, the motive at infinity recovers a formula for vanishing cycles due to Rapoport-Zink; similar results hold for Steenbrink's limiting Hodge structures and Wildeshaus' boundary motives. Under the topological Betti realization, the stable motivic homotopy type at infinity of an algebraic variety recovers…
L’impresa mafiosa? Colletti bianchi e crimini di potere
2016
Assumendo una prospettiva multidisciplinare e partendo dai risultati di una ricerca condotta sul campo tra il 2013 e il 2015, il volume esamina il complesso network delle relazioni interne ed esterne a due gruppi di imprese sequestrate e confiscate per infiltrazioni mafiose, osservandone i cambiamenti negli aspetti economici, finanziari, organizzativi e sociali sia nel periodo che precede il sequestro o la confisca, sia nel periodo in cui il provvedimento è in corso. L’elevato dinamismo che caratterizza i crimini messi in atto dagli imprenditori coinvolti e il contesto in cui avvengono rendono assimilabili, sotto molti punti di vista, i casi considerati alla cosiddetta criminalità dei colle…
Kvantu vaicājumu sarežģītība bezkonteksta gramatikām
2019
Bezkonteksta gramatikas un to ģenerētās valodas ir plaši pētīta tēma datorzinātnē. Tām ir dažādi praktiski pielietojumi, piemēram, XML valodā. Savukārt kvantu skaitļošana, it sevišķi kvantu vaicājumu algoritmi, ir datorzinātnes nozare, kas par spīti popularitātei, ir vēl neizpētīta un neskaidra. Šī darba mērķis ir aplūkot vārda piederības problēmu bezkonteksta valodai no kvantu vaicājumu algoritmu puses. Konkrētāk - darbā tika izvirzīti divi uzdevumi. Pirmais uzdevums bija atrast bezkonteksta valodu ar kvantu vaicājumu sarežģītību O(N^c), kur c0 vai pierādīt par tādas neesamību. Otrais uzdevums - uzrādīt intuitīvi saprotamu bezkonteksta valodas konstrukciju, kas ļauj konstruēt valodu ar kva…
Data from: Colour polymorphism torn apart by opposing positive frequency-dependent selection, yet maintained in space
2016
1. Polymorphic warning signals in aposematic species are enigmatic because predator learning and discrimination should select for the most common coloration, resulting in positive frequency-dependent survival selection. 2. Here, we investigated whether differential mating success could create sufficiently strong negative frequency-dependent selection for rare morphs to explain polymorphic (white and yellow) warning coloration in male wood tiger moths (Parasemia plantaginis). 3. We conducted an experiment in semi-natural conditions where we estimated mating success for both white and yellow male moths under three different morph frequencies. 4. Contrary to expectations, mating success was po…
<p>Examining Quality of Life After Treatment with Azelaic and Pyruvic Acid Peels in Women with Acne Vulgaris</p>
2020
Purpose This randomized parallel study aims to investigate the azelaic acid (AA), and pyruvic acid (PA) peels treatment effect on health-related quality of life (QOL) in young adult women with acne vulgaris. Patients and Methods The participants were 120 female undergraduate students, with mild to moderate facial acne and an average age of 22 years old (M = 22.2, SD = 16.1). Eligibility criteria were as follows: female gender, 18-25 years of age, no dermatological treatment within the last 12 months and mild to moderate papulopustular acne. Patients were randomly divided into two groups, the first group was treated with AA, and the second group was treated with PA. Both groups received trea…
HDR Imaging Pipeline for Spectral Filter Array Cameras
2017
Multispectral single shot imaging systems can benefit computer vision applications in needs of a compact and affordable imaging system. Spectral filter arrays technology meets the requirement, but can lead to artifacts due to inhomogeneous intensity levels between spectral channels due to filter manufacturing constraints, illumination and object properties. One solution to solve this problem is to use high dynamic range imaging techniques on these sensors. We define a spectral imaging pipeline that incorporates high dynamic range, demosaicing and color image visualization. Qualitative evaluation is based on real images captured with a prototype of spectral filter array sensor in the visible…
4-Manifold topology II: Dwyer's filtration and surgery kernels
1995
Even when the fundamental group is intractable (i.e. not "good") many interesting 4-dimensional surgery problems have topological solutions. We unify and extend the known examples and show how they compare to the (presumed) counterexamples by reference to Dwyer's filtration on second homology. The development brings together many basic results on the nilpotent theory of links. As a special case, a class of links only slightly smaller than "homotopically trivial links" is shown to have (free) slices on their Whitehead doubles.