Search results for "Icon"
showing 10 items of 3539 documents
Simulation studies of electronic transport in a-Si:H thin film solar cells
2009
The thin film solar cells in Hydrogenated Amorphous Silicon (a-Si:H) are attractive for cheaper production and used in ultra low cost, high volume applications but have a relatively lower electronic performance. These limitations are mainly due to properties of the a-Si:H and relies on the production technique. In this study we investigate the physical mechanisms which are on the basis of the electronic transport and their relation with the technological processes. The transport-simulation computer program ATLAS (Silvaco) has been used to examine the role of the mid gap defect density in determining the performance of a-Si:H p-i-n homojunction solar cell.
Properties of SnO2:F/p-type aSi:H interface in thin film a-Si:H solar cells
2011
Overview of Power Electronic Switches: A Summary of the Past, State-of-the-Art and Illumination of the Future.
2020
As the need for green and effective utilization of energy continues to grow, the advancements in the energy and power electronics industry are constantly driven by this need, as both industries are intertwined for obvious reasons. The developments in the power electronics industry has over the years hinged on the progress of the semiconductor device industry. The semiconductor device industry could be said to be on the edge of a turn into a new era, a paradigm shift from the conventional silicon devices to the wide band gap semiconductor technologies. While a lot of work is being done in research and manufacturing sectors, it is important to look back at the past, evaluate the current progr…
Effect of awareness on learning in biconditional discrimination conditioning
2004
Introducing timbre to design of semi-abstract earcons
2007
Luminescent Silicon nanocrystals produced by ns pulsed laser ablation
2013
The reduction of Si down to nanoscale introduces a peculiar visible luminescence, surprisingly for a not highly emissive material. This feature is relevant in connection with several application fields (optoelectronics, medicine) and has lead the research towards the development of production methods successful to control the physical and chemical properties of the nanosized Si so as to enhance and tune the luminescence. To this purpose, the laser ablation in liquids is particularly promising since it provides effective controlling parameters (laser photon energy, fluence, repetition rate, liquid reactivity) for the morphology and the structure of Si-related products. Here we report a study…
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.
Los tipos iconográficos de tradición cristiana. Proyecto de Investigación del grupo APES
2020
Proyecto orientado como una historia diacrónica de los tipos iconográficos en la tradición del cristianismo, llevado a cabo por el grupo de investigación APES. Reflexión de sobre su orientación metodológica. Definición y clarificación de los conceptos: tipo iconográfico, imagen conceptual e imagen narrativa. Plan de la colección: volúmenes publicados y previstos.
El retablo de San Estanislao de Kostka en San Luis de los franceses de Sevilla
2020
El templo de San Luis de los franceses de Sevilla, construido a lo largo de las primeras décadas del siglo XVIII, dispone de un complejo programa visual. El retablo de San Estanislao de Kostka ocupa una importante capilla, en paralelo a la de San Francisco de Borja. Como todo retablo, cumple dos funciones: la contemplativa, o conductora de la oración a través de su imagen conceptual, y la formativa por medio del discurso visual desplegado en las calles laterales y el ático. Se afronta el análisis de ambas facetas mediante una aproximación a sus fuentes literarias y emblemáticas.
TallVocabL2Fi : A Tall Dataset of 15 Finnish L2 Learners’ Vocabulary
2022
Previous work concerning measurement of second language learners has tended to focus on the knowledge of small numbers of words, often geared towards measuring vocabulary size. This paper presents a “tall” dataset containing information about a few learners’ knowledge of many words, suitable for evaluating Vocabulary Inventory Prediction (VIP) techniques, including those based on Computerised Adaptive Testing (CAT). In comparison to previous comparable datasets, the learners are from varied backgrounds, so as to reduce the risk of overfitting when used for machine learning based VIP. The dataset contains both a self-rating test and a translation test, used to derive a measure of reliability…