Search results for "Icon"
showing 10 items of 3539 documents
Particle radiation in microelectronics
2012
The unavoidable presence of particle radiation in space and on the ground combined with constantly evolving technology necessitates a deep understanding of the basic mechanisms underlying radiation effects in materials and electronic devices. This thesis provides an overview of the different radiation environments, with a review of the interaction mechanisms between energetic particles and matter. In this work a new semi-empirical model for estimating the electronic stopping force of solids for heavy ions is introduced. Radiation effects occurring in microelectronics due to particle radiation are also discussed with a brief introduction to radiation hardness assurance (RHA) testing of elect…
Amorphous silicon nanotubes
2017
In the following, the attention will be focused on the silicon nanotube (SiNTs) that is a highly desired form of silicon for its fundamental role in the miniaturization trend of the electronic devices. After a description of the properties and applications of SiNTs and their fabrication methods, the attention will be focused on chemical vapour deposition (CVD) template synthesis that is the most usual synthetic method for this material. Then, galvanic template synthesis will be described as a general method for the fabrication of different metals and oxides nanostructures, therefore the use of this technique for synthesizing SiNTs will be detailed. Characterization methods will be also desc…
Physiological parameters measurements in a cardiac cycle via a combo PPG-ECG system
2015
In this paper, we present an innovative way to measure some physiological parameters (such as the pre-ejection period, the pulse transit time, the blood pressure) in a cardiac cycle. A combo PPG-ECG system has been developed and employed to extract both the ECG signal from standard limb leads and simultaneously the photoplethysmography signal from the wrist and the forearm, to calculate the pre-ejection period. This system represents an easy and non-invasive technique to determine these biomedical parameters without using expensive impedance cardiography equipment.
Mythologie in musicis: Simbología e iconología en la música de Karlheinz Stockhausen. El ciclo Licht (1977-2003)
2011
A través de la revisión del contenido y la estructura de cada una de las siete óperas queintegran el ciclo Licht de Karlheinz Stockhausen, presentamos en este artículo un estudio de lasimbología y la iconología musical que de ellas se desprende. La compleja relación de símbolose iconos de todo tipo que encontramos a lo largo de cada una de las jornadas de Licht nos permite abordar su problemática mediante un análisis cuyo objetivo primordial es poner demanifiesto la riqueza de las conexiones que se establecen entre los diversos elementos musicales, teatrales, visuales y culturales, así como delimitar los diversos significados implícitos y las funciones que éstos desempeñan en un ciclo operí…
Los símbolos en el arte como recurso didáctico para las clases de literatura comparada en la E/LE
2013
La didáctica que presentamos está pensada para una clase de cultura española y tiene como fin aunar composición y conversación con elementos culturales; es decir, que el alumno sea capaz de conformar un discurso coherente sobre cultura y más concretamente sobre arte. El modelo que presentamos está relacionado con la literatura comparada y pretende dotar al alumno de unas herramientas sobre el significado de distintos objetos, de tal forma sea capaz de reconocerlos en los cuadros, aplicarlos y por consiguiente poder construir unas explicaciones que le ayuden a entender la obra.
Minori migranti soli o non accompagnati e le nuove forme di affiancamento a tutori legali
2019
Nell’ambito del sistema di accoglienza in Italia, sappiamo che sono molteplici gli interventi mirati al riconoscimento del bisogno educativo che i migranti manifestano. Nello specifico del contributo, che prende avvio da una ricognizione empirica e problematica sul fenomeno migratorio, si intende riflettere sulla particolare situazione in cui si vengono a trovare i minori migranti soli o non accompagnati, i quali, oltre a dover ri-definire la propria identità tra il passato e le aspettative future, si trovano a sperimentare l’esperienza migratoria da soli, ovvero privi di assistenza e di rappresentanza da parte dei genitori o di altri adulti per loro legalmente responsabili. Si tratta, dunq…
P-on-N and N-on-P silicon photomultipliers: responsivity comparison in the continuous wave regime
2013
We report the electrical and optical comparison, in continuous wave regime, of two novel classes of silicon photomultipliers (SiPMs) fabricated on silicon P-type and N-type substrate respectively. Responsivity measurements have been performed with an incident optical power from tenths of picowatts to hundreds of nanowatts and on a broad spectrum, ranging from ultraviolet to near infrared (340-820 nm). For both classes of investigated SiPMs, responsivity shows flat response versus the optical incident power, when a preset overvoltage and wavelength is applied . More in detail, this linear behavior extends up to about 10 nW for lower overvoltages, while a shrink is observed when the reverse b…
RICONOSCIMENTO DELLA REALTA' ED ESISTENZA PERSONALE. LA CRITICA DEL "NUOVO REALISMO" AL PENSIERO DEBOLE E IL SUO SIGNIFICATO NELLA PROSPETTIVA DI UN'…
2014
This article aims to analyse critically the so-called “new realism” and to evaluate its pedagogical and educational consequences. By examining the objections made by this philosophy to the postmodernist culture, the author agrees on some aspects of its theory of knowledge. On the other hand, the article highlights the lack of adequate anthropology and possible consequences of the “new realism” on educational thought and practice. The proposal of an ontology of the person wellestablished in the tradition of phenomenological realism is seen as dialectics of the “new realism”.