Search results for " CAM"
showing 10 items of 1215 documents
Effetto sugli aspetti morfologici e riproduttivi dell’esposizione di semi di Lagenaria siceraria a campi magnetici
2012
La lagenaria è una cucurbitacea conosciuta da più di 15000 anni per la commestibilità dei frutti immaturi e dei germogli, ma anche per le proprietà medicinali e per i diversi utilizzi cui può essere destinato il frutto maturo. E’ noto che i campi magnetici, con intensità di 1-2 ordini di grandezza al di sopra della forza del campo geomagnetico, possono influenzare la crescita e il metabolismo in una moltitudine di modi. In questo ambito, la ricerca condotta mira a valutare l’effetto che i trattamenti magnetici a semi di Lagenaria possono avere sulle piante da essi ottenute, con particolare riferimento alla biologia fiorale e alla produttività delle piante stesse. Semi di Lagenaria siceraria…
Entre arcadia y barbarie. Figuras del campo en el cine de los años 30
2010
Los años veinte fueron, en Europa en general y en América, y a su modo en España, momentos de explosión de las urbes. La arquitectura, las artes, el diseño, la fotografía y, por supuesto, el cine participaron de la celebración extática. De Paul Strand y Charles Sheeler a Dziga Vertov, de Walter Ruttmann a Alberto Cavalcanti, de Roben Flaherty a Herman Weinberg, no hubo capital que no tuviera su elogio. En consecuencia, el campo no representó la cresta de ese movimiento por la modernidad: anclado en tipología y mitos arcaicos, encarnación inmóvil de la autenticidad, heroico apenas en algunas manifestaciones, como el esfuerzo que sugerían los llamados Bergfilme alemanes (filmes de montaña), e…
Fabrication and electro-optical characterization of Ruthenium-based Dye-Sensitized Solar Cells
2015
In this paper, we measure the main photoelectrical parameters of Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes at different irradiance levels, incident wavelengths, temperatures and hours of light soaking
Experimental characterization of Ruthenium-based Dye Sensitized Solar Cells and study of light-soaking effect impact on performance
2016
In this paper, we present an experimental investigation on the performance of Ruthenium-based Dye Sensitized Solar Cells (DSSCs) at different irradiance levels, incident wavelengths and hours of illumination. In particular, the measurements have been aimed at studying the performance variation due to light soaking effect since this phenomenon has noteworthy practical implications, such as stability tests of DSSCs. Our results show that the short circuit current density, the open circuit voltage and the conversion efficiency η increase with the hours of light soaking. Finally, the observed phenomenon is reversible, and thus the performance decreases again when the cell is kept in the dark.
Characterization of thin film CIG(S,SE)2 submodules using solar simulator and laser beam induced current techniques (Versione estesa)
2015
In this work, the electrical and optical characterization of CIG(S, Se)2 sub-modules using both a solar simulator equipment and the Laser Beam Induced Current (LBIC) technique is presented. By using the solar simulator and a proper set-up, the electrical parameters of the modules at varying irradiance and temperatures are determined. In addition, the LBIC measurements are carried out to analyze the 2D photocurrent uniformity of the modules at two different wavelengths. Dispersion values of extracted parameters can be very useful for practically tuning the modelling stage at device/module level.
Characterization of Thin Film CIG(S,Se)2 submodules using Laser Beam Induced Current Technique
2015
Nowadays, an important class of thin film solar cells consists of CuInGa(S,Se)2 (CIGSSe) solar cells, i.e., composed of Copper, Indium, Gallium, Sulfur and Selenide. Thanks to their electrical and optical properties and to the technological development, thin film integrated photovoltaic modules have nowadays obtained relatively good values of efficiency. In this work, we have performed the electrical and optical characterization of a CIGSSe sub-module by using both a solar simulator equipment and the Laser Beam Induced Current (LBIC) technique.
Lisätty todellisuus matkapuhelinsovelluksissa
2010
Peura, Kimmo Tapio Lisätty todellisuus matkapuhelinsovelluksissa Jyväskylä: Jyväskylän yliopisto, 2010. 30s. Kandidaatintutkielma Tässä tutkielmassa käsitellään lisättyä todellisuutta ja sen sovelluksia matkapuhelimissa. Ensin esittelen, mitä lisätty todellisuus on ja miten se liittyy virtuaalitodellisuuteen. Tämän jälkeen kerron matkapuhelimesta lisätyn todellisuuden laitealustana. Lopuksi esittelen kolme matkapuhelinsovellusta, Layarin, Sekai Cameran ja Toozlan, joissa hyödynnetään lisättyä todellisuutta. Lisätty todellisuus toteutetaan yleensä käyttämällä läpinäkyviä näyttöjä tai monitoripohjaisia näyttöjä. Läpinäkyvät näytöt ovat usein päässä kannettavia näyttöjä ja niiden avulla voi t…
« Lee Miller, War “ethical” Photographer?»
2013
International audience; This presentation discusses some of Lee Miller photographs of Dachau and argues of their ethical relevance.
Corporate tax cuts and business-friendly policies in the UK - A review of electoral arguments during the 2015 legislative campaign
2016
The stance toward big business was a heated topic during Britain’s 2015 legislative campaign that led to the triumphal, albeit slightly unexpected, reelection of David Cameron, as Prime Minister. More profoundly, it raises the issue of the economic impact of corporate tax cuts and the nature of business-friendly policies in the UK. Firstly, we investigate the electoral arguments on both sides of the political spectrum. These discussions are framed within the overarching approach known as supply-side economics, which has been prevalent in English-speaking countries since the neoliberal revolution in the late 1970s. Secondly, we put forward the idea that widening inequalities, as suggested re…
Expresión proteica de p53 y proliferación celular en leucoplasias orales
2005
Objetivos: Conocer la expresión proteica de las alteraciones genéticas que se producen en las etapas precoces de la cancerización del campo de cavidad oral en nuestro medio. Estudiar la proliferación celular mediante Ki-67 y la expresión de la proteína p53 para valorar si las alteraciones en la expresión proteica de estos marcadores suceden de forma secuencial a través de las distintas etapas en la cancerización del campo de la cavidad oral. Material y métodos: Se realizó un estudio mediante técnicas de inmunohistoquímica sobre 53 pacientes que presentaron lesiones de leucoplasia oral, atendidos por el Servicio de O.R.L del Hospital Universitario de Salamanca, desde 1.990 hasta 2000. Se inc…