Search results for "ICON"

Vibrational properties of semiconductor nanowires and nanowire heterostructures: ensembles and single nanowires

2013

Phonon Deformation Potentials from Raman Measurements on Semiconductor Membranes

1997

Facile synthesis of a monolith of silicon nanocrystal embedded in silica

2013

Unifying Concepts for Ion-Induced Leakage Current Degradation in Silicon Carbide Schottky Power Diodes

2020

The onset of ion-induced reverse leakage current in SiC Schottky diodes is shown to depend on material properties, ion LET, and bias during irradiation, but not the voltage rating of the parts. This is demonstrated experimentally for devices from multiple manufacturers with voltage ratings from 600 V to 1700 V. Using a device with a higher breakdown voltage than required in the application does not provide increased robustness related to leakage current degradation, compared to using a device with a lower voltage rating. peerReviewed

Klapać na pyszczysku, czyli o śląskiej leksyce i frazeologii dotyczącej mówienia

2019

The article discusses selected lexical units found in the dialects of Silesia, which refer to the act of speaking. It examines more than 190 tokens and collocations whose common denominator is the meaning of ‘speaking’. Analyzed are units referring to the content of the expression (with the main semantic component ‘to talk nonsense’), as well as those referring to physical aspects of the act of speaking, such as the clarity and accuracy of articulation (‘to speak indistinctly’, ‘to stutter’), the pace of speaking (‘to speak fast’, ‘to speak slowly’), also the tone, pitch, and intensity of the voice (‘to speak softly’, ‘to say shrilly’). An analysis of the collected material shows that these…

Icons: Visual representation to enrich requirements engineering work

2013

Adapting icons in requirements engineering can support the multifaceted needs of stakeholders. Conventional ap- proaches to RE are mainly highlighted in diagrams. This paper introduces icon-based information as a way to represent ideas and concepts in the requirements engineering domain. We report on icon artifacts that support requirements engi- neering work such as priority types, status states and stakeholder kinds. We evaluate how users interpret meanings of icons and the efficacy of icon prototypes shaped to represent those requirements attributes. Our hypothesis is whether practitioners can recognize the icons’ meaning in terms of their functional representation. According to the empi…

SPACE AND MATTER. A SOLID VOID FOR A WEAK MONUMENTALITY

2020

Following this essay one can say that the immaterial icon of the building perpetuated over the last three decades, characterized by a shiny and evanescent materiality, seems to reflect a deep tiredness today, featuring an increasingly rapid obsolescence of its image. As a result, there is a need for a major review of the interpretation process of the requests coming from the market and geared toward a new exegesis of the tectonic detail for a formal and material interpretation of the soundness of a financial system looking for vali-dation. This condition, while proposing a healthy come-back toward a conscious control of the tectonic dimension of the building, re-interprets, in its typologic…

Forma, cultura, società. Teorie e metodi degli studi sull’arte

2010

Il Belice prima e dopo il 1968 attraverso le iconografie

2014

Il saggio presenta come l' intero territorio della valle del Belice abbia cambiato identità dopo il terremoto del 1968. Attraverso le iconografie (fotografie, disegni) di architetture esistite e poi distrutte. The 1968 earthquake in western Sicily is a break point in the history of a territory rich and layered. The journalism has mainly dealt with the case Gibellina, but in reality is the entire geographical area to have changed relationships and vocations. The iconography and photographs can witness the difference that occurred within a few years. In fact, the contemporary architecture linked to the reconstruction is only one of the parameters suitable to interpret mutations identity of pl…

Formation of Si/SiO2 Luminescent Quantum Dots From Mesoporous Silicon by Sodium Tetraborate/Citric Acid Oxidation Treatment

2019

We propose a rapid, one-pot method to generate photoluminescent (PL) mesoporous silicon nanoparticles (PSiNPs). Typically, mesoporous silicon (meso-PSi) films, obtained by electrochemical etching of monocrystalline silicon substrates, do not display strong PL because the silicon nanocrystals (nc-Si) in the skeleton are generally too large to display quantum confinement effects. Here we describe an improved approach to form photoluminescent PSiNPs from meso-PSi by partial oxidation in aqueous sodium borate (borax) solutions. The borax solution acts to simultaneously oxidize the nc-Si surface and to partially dissolve the oxide product. This results in reduction of the size of the nc-Si core …