Search results for "Sign"
showing 10 items of 14733 documents
Ultra-High Energy Neutrinos at the Pierre Auger Observatory
2013
The observation of ultrahigh energy neutrinos (UHE nu s) has become a priority in experimental astroparticle physics. UHE nu s can be detected with a variety of techniques. In particular, neutrinos can interact in the atmosphere (downward-going nu) or in the Earth crust (Earth-skimming nu), producing air showers that can be observed with arrays of detectors at the ground. With the surface detector array of the Pierre Auger Observatory we can detect these types of cascades. The distinguishing signature for neutrino events is the presence of very inclined showers produced close to the ground (i.e., after having traversed a large amount of atmosphere). In this work we review the procedure and …
TRANSCRANIAL MAGNETIC RESONANCE-GUIDED FOCUSED ULTRASOUND (TCMRGFUS) CON SCANNER DA 1.5T: NOTA TECNICA
2018
Scopo La terapia dei disordini neurologici mediante tcMRgFUS è stata effettuata utilizzando esclusivamente scanner RM da 3T. Utilizzando uno scanner RM da 1.5T la qualità delle sequenze morfologiche utilizzabili per la pianificazione di questi trattamenti è risultata essere soddisfacente utilizzando la bobina body RF (quella utilizzata con scanner 3T). Tuttavia l'SNR delle sequenze utilizzate per la termometria RM è risultato inferiore allo standard accettabile per i trattamenti. È stata quindi sviluppata una bobina a 2 canali per assicurare un adeguato SNR. Presentiamo il protocollo di imaging efficacemente utilizzato per eseguire procedure tcMRgFUS con il primo sistema mai integrato …
Compensation of Nonlinearity of Voltage and Current Instrument Transformers
2019
This paper aims at characterizing and improving the metrological performances of current and voltage instrument transformers (CTs and VTs) in harmonic measurements in the power system. A theoretical analysis is carried out to demonstrate that, due to the iron core nonlinearity, CT and VT output signal is distorted even when the input signal is a pure sine wave. Starting from this analysis, a new method for CT and VT characterization and compensation is proposed. In a first step, they are characterized in sinusoidal conditions and the harmonic phasors of the distorted output are measured; in the second step, these phasors are used to compensate the harmonic phasors measured in normal operati…
A Computationally Efficient Online/Offline Signature Scheme for Underwater Wireless Sensor Networks
2022
Underwater wireless sensor networks (UWSNs) have emerged as the most widely used wireless network infrastructure in many applications. Sensing nodes are frequently deployed in hostile aquatic environments in order to collect data on resources that are severely limited in terms of transmission time and bandwidth. Since underwater information is very sensitive and unique, the authentication of users is very important to access the data and information. UWSNs have unique communication and computation needs that are not met by the existing digital signature techniques. As a result, a lightweight signature scheme is required to meet the communication and computation requirements. In this researc…
Crossing borders without travel : virtual exchange practices for students
2019
Virtual Exchange (VE) offers unique educational experiences at the intersection of the digital, the social, and the intercultural. It re-situates learning by creating an inclusive transnational learning space, where the participants move across and beyond cultural, curricular and individual boundaries. nonPeerReviewed
The urban design guidance for the unmanaged spaces under elevated expressways upon users’ preferences
2016
There are many bridges in the Iranian major cities. It is still proceeded for constructing new bridges in order to solve traffic problems. The spaces under bridges and the expectations of users are rarely important for city officials and designers. Hence, this research is looking for guidelines of designing the unmanaged spaces under city bridges considering the environmental preferences of users. The main goal of this research is to achieve urban design guideline for designing the unmanaged spaces under elevated expressways based on expectations of individuals. This research is based on theoretical studies in the field of urban design, under bridge spaces, unmanaged spaces as well as envir…
Sant'Anna Jamming
2016
ADI Design Index è la selezione annuale del miglior design italiano ed è parte integrante del sistema di selezione del Premio Compasso d’Oro ADI: ogni anno, grazie all’Osservatorio Permanente del Design ADI – un gruppo di lavoro costituito da oltre cento esperti, anche esterni all’associazione – prende in esame su tutto il territorio italiano il design dei nuovi prodotti messi in produzione. Dopo una strutturata selezione (commissioni territoriali, tematiche e comitato di selezione finale), i migliori prodotti di design vengono presentati, con un commento critico che evidenzia i motivi della scelta, su ADI Design Index. I volumi diventano la base su cui lavora la giuria internazionale del C…
Postpandemic Urban Habitat in the Age of Contamination
2020
The challenge for post-pandemic urban habitats will be to recover their natural polycentrism, the diversity of their neighborhoods which, ceasing to be fragile suburbs, return to being places of lives and not just of homes, bridging the educational, working, cultural, digital divides, acquiring micro-places of public health and self-sufficient energy communities. I imagine cities of a renewed urban proxemic made up of "augmented urban communities" (according to the principles I described earlier) that reduce their frantic centripetal mobility and that facilitate a more measured mobility guaranteeing the answer to many needs within 15 minutes from home (the “15-minute city”, as already launc…
“Ephemeral” regeneration for the marginal urban spaces/places in Enna
2020
The aim of this paper it to demonstrate that the interventions of “ephemeral designing” - seen in the key of potential activators of shared forms of bottom-up urban regeneration - may be also read as sequence of pop-up actions (flames); but capable in conferring to the marginal urban spaces - even if temporarily - a “meta-real” shape of the desirable effects of that urban transformation they would to reach in a real implementation. By establishing, thereby, with both the city's communities and places, a true moment of local awareness and animation, fleeting but realistic, that can trigger interest and re-generate the sleeping collective activism, even before to regenerate the physical compo…
Experiences of anamorphosis between poetry, architecture, and social context: interview with Boa Mistura
2020
The paper presents an interview with Boa Mistura, a multidisciplinary Madrid art collective that works all over the world and creates urban works based on the use of anamorphosis and the visual perception of urban spaces.The Boa Mistura projects are “site specific”, they are designed for a specific space and place. In the interview we explore the relationship between urban art and physical context, the way in which the works adapt to the surfaces and volumes on which they are made.The physical support of the works of Boa Mistura is often made up of separate and not coplanar surfaces and of volumes, sometimes disjointed, on which the murals recline. The same historiated surfaces determine the …