1,721,036 research outputs found

    Espressione, ruolo prognostico e prospettive terapeutiche di mTOR (mammalian Target Of Rapamycin) nel carcinoma laringeo.

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    Studio vincitore del Primo Premio presso Premio Unico della Societa' Italiana di Otorinolaringologia e Chirurgia Cervico- Facciale “Bilancioni-Ferreri-Gradenigo”. Udine, 25-28 maggio 2011

    Graph-based modelling and simulation of liquid immersion cooling systems

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    Currently, most of the existing data centers use chilled air to remove the heat produced by the servers. However, liquids have generally better heat dissipation capabilities than air, thus liquid cooling systems are expected to become a standard choice in future data centers. Designing and managing these cooling units benefit from having control-oriented models that can accurately describe the thermal status of both the coolant and the heat sources. This manuscript derives a control-oriented model of liquid immersion cooling systems, i.e., systems where servers are immersed in a dielectric fluid having good heat transfer properties. More specifically, we derive a general lumped-parameters gray box dynamical model that mimics energy and mass transfer phenomena that occur between the main components of the system. The proposed model is validated against experimental data gathered during the operation of a proof-of-concept immersion cooling unit, showing good approximation capabilities. (C) 2020 Elsevier Ltd. All rights reserved

    La domesticità immaginata dello spazio abitato

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    Negli spazi delle nostre città è oggi possibile riconoscere una molteplicità di espressioni creative e progettuali, portate avanti da ogni persona, che sia pure nel loro carattere eterogeneo ed estemporaneo, sono in grado di rispondere agli stimoli e ai cambiamenti imposti dalle pressioni della contemporaneità. Durante l’esperienza del primo lockdown questa progettualità diffusa è emersa in maniera prepotente e visionaria, rivelando un cambiamento profondo nel rapporto tra gli abitanti e il proprio spazio, aprendo inedite prospettive progettuali dentro e fuori dalla casa. A partire da queste nuove e diverse condizioni si sono generati processi costitutivi dell’architettura e degli spazi abitati che superano il concetto classico di edificare. Abitiamo un’architettura non soltanto per le sue qualità spaziali e materiche, ma anche per la sua capacità di attrarre verso di sé una molteplicità di tecniche, di reti, di piattaforme immateriali e di usi diversi. Ne derivano spazialità sovrapposte e compresenti, su cui è possibile costruire un nuovo ordine e un diverso sistema di nessi logici che ci consentono di espande le nostre esperienze oltre i consueti limiti fisici. La nostra casa non è più soltanto uno spazio domestico, ma è anche luogo di immaterialità, di scambio e di comunicazione. Ma non cambia solo lo spazio in sé, nelle sue geometrie e nei suoi perimetri, quello che soprattutto cambia è la nostra stessa idea di spazio, l’immagine utile che gli attribuiamo in relazione alle nostre azioni

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    On Economic Cooling of Contained Server Racks using an Indirect Adiabatic Air Handler

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    We study the economic operation of a free-cooling setup in which an Indirect Adiabatic Air Handler (IAAH) recovers heat from an array of server racks placed in a contained aisle. For this setting we propose two different control policies: in the first approach, the airflow supply rate to the racks is maintained constant while only the process-side operations of the IAAH are optimized. In the second approach, also the room-side rate is updated adaptively. Building on calibrated models of the IAAH and the servers, we design experimental trials considering different outdoor temperatures and humidity conditions as well as varying computational workloads. The in silico analysis contributes actionable insights on the optimal thermal and cost operations of the system

    Interactive soundscapes: Developing a physical space augmented through dynamic sound rendering and granular synthesis

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    This project presents the development of an interactive environment inspired by soundscape composition, in which a user can explore a sound augmented reality related to a real soundscape. The user walks on the application's responsive floor controlling through her/his position the soundscape rendering. In the same time s/he can explore the sound structure entering central zone of the responsive floor, where some granular synthesis processes are activated. One main goal of the project is to sensitize the participants regarding the surrounding sonic environment looking also for pedagogical studies. A first evaluation of an audio excerpt produced by a user's soundwalk shows that the application can produce good quality and interesting soundscapes, which are fully consistent with the real environments from which they were inspired

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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