2,518 research outputs found
Relazione del pomposo ingresso nella città di Vienna della Sacra Maestà di Gioseppe primo re de' Romani, e la seren. principessa Wilelmina Amalia d'Hannover.
No full textMode of access: Internet.Library stamp on t.p. of Pio Martinucci.Bound with: Distinta relazione di tutto il seguito nella partenza da Modena della regina sposa. Rome : Luca Antonio Chracas, 1699 (94-B12704)
RE LIVING THE CENTER
No full textCAPITOLO SUL PROGETTO DI LUCA GALOFARO STUDIO IAN+ PRESENTATO ALLA BIENNALE DI VENEZIA DEL 2008 RIVIVERE IL CENTR
Campus in Camps. Descolonizando el conocimiento y la cuestión del des-aprendizaje
No full textEste ensayo aborda el tema de pedagogías decoloniales en el sur global, analizando Campus en los campos, un programa educativo fundado en 2012 por Alessandro Petti y Sandi Hilal con el objetivo de activar el aprendizaje crítico comunal en el campo de refugiados de Dheisheh en Belén, Palestina. El programa reflexiona acerca de los procesos de transformación social y espacial por los que están pasando los campos de refugiados. El ensayo plantea dos preguntas principales: ¿De qué maneras el proyecto Campus en los campos descoloniza las metodologías de construcción de conocimiento en relación a la vida en el campo de refugiados? ¿Cómo activar procesos de pedagogía encarnada en el que el conocimiento se afinque en la acción y surja como un esfuerzo colectivo que incluya sujetos que nazcan de la interacción entre participantes, tutores y el contexto social más amplio? Primero, el artículo primero en el tema de concebir al campo de refugiados como un sitio de historia y de conocimiento. Segundo, interrogará las estrategias pedagógicas, metodologías de investigación y métodos de diseño participativo implementados para “descolonizar el conocimiento” a través de prácticas colectivas de des-aprendizaje
System-on-chip Computing and Interconnection Architectures for Telecommunications and Signal Processing
No full textThis dissertation proposes novel architectures and design techniques targeting SoC building blocks for telecommunications and signal processing applications.
Hardware implementation of Low-Density Parity-Check decoders is approached at both the algorithmic and the architecture level. Low-Density Parity-Check codes are a promising coding scheme for future communication standards due to their outstanding error correction performance.
This work proposes a methodology for analyzing effects of finite precision arithmetic on error correction performance and hardware complexity. The methodology is throughout employed for co-designing the decoder. First, a low-complexity check node based on the P-output decoding principle is designed and characterized on a CMOS standard-cells library. Results demonstrate implementation loss below 0.2 dB down to BER of 10^{-8} and a saving in complexity up to 59% with respect to other works in recent literature. High-throughput and low-latency issues are addressed with modified single-phase decoding schedules. A new "memory-aware" schedule is proposed requiring down to 20% of memory with respect to the traditional two-phase flooding decoding. Additionally, throughput is doubled and logic complexity reduced of 12%. These advantages are traded-off with error correction performance, thus making the solution attractive only for long codes, as those adopted in the DVB-S2 standard. The "layered decoding" principle is extended to those codes not specifically conceived for this technique. Proposed architectures exhibit complexity savings in the order of 40% for both area and power consumption figures, while implementation loss is smaller than 0.05 dB.
Most modern communication standards employ Orthogonal Frequency Division Multiplexing as part of their physical layer. The core of OFDM is the Fast Fourier Transform and its inverse in charge of symbols (de)modulation. Requirements on throughput and energy efficiency call for FFT hardware implementation, while ubiquity of FFT suggests the design of parametric, re-configurable and re-usable IP hardware macrocells. In this context, this thesis describes an FFT/IFFT core compiler particularly suited for implementation of OFDM communication systems. The tool employs an accuracy-driven configuration engine which automatically profiles the internal arithmetic and generates a core with minimum operands bit-width and thus minimum circuit complexity. The engine performs a closed-loop optimization over three different internal arithmetic models (fixed-point, block floating-point and convergent block floating-point) using the numerical accuracy budget given by the user as a reference point. The flexibility and re-usability of the proposed macrocell are illustrated through several case studies which encompass all current state-of-the-art OFDM communications standards (WLAN, WMAN, xDSL, DVB-T/H, DAB and UWB). Implementations results are presented for two deep sub-micron standard-cells libraries (65 and 90 nm) and commercially available FPGA devices. Compared with other FFT core compilers, the proposed environment produces macrocells with lower circuit complexity and same system level performance (throughput, transform size and numerical accuracy).
The final part of this dissertation focuses on the Network-on-Chip design paradigm whose goal is building scalable communication infrastructures connecting hundreds of core. A low-complexity link architecture for mesochronous on-chip communication is discussed. The link enables skew constraint looseness in the clock tree synthesis, frequency speed-up, power consumption reduction and faster back-end turnarounds. The proposed architecture reaches a maximum clock frequency of 1 GHz on 65 nm low-leakage CMOS standard-cells library. In a complex test case with a full-blown NoC infrastructure, the link overhead is only 3% of chip area and 0.5% of leakage power consumption.
Finally, a new methodology, named metacoding, is proposed. Metacoding generates correct-by-construction technology independent RTL codebases for NoC building blocks. The RTL coding phase is abstracted and modeled with an Object Oriented framework, integrated within a commercial tool for IP packaging (Synopsys CoreTools suite). Compared with traditional coding styles based on pre-processor directives, metacoding produces 65% smaller codebases and reduces the configurations to verify up to three orders of magnitude
Group Re-Identification via Unsupervised Transfer of Sparse Features Encoding
No full textPerson re-identification is best known as the problem of associating a single person that is observed from one or more disjoint cameras. The existing literature has mainly addressed such an issue, neglecting the fact that people usually move in groups, like in crowded scenarios. We believe that the additional information carried by neighboring individuals provides a relevant visual context that can be exploited to obtain a more robust match of single persons within the group. Despite this, re-identifying groups of people compound the common single person re-identification problems by introducing changes in the relative position of persons within the group and severe self-occlusions. In this paper, we propose a solution for group re-identification that grounds on transferring knowledge from single person re-identification to group re-identification by exploiting sparse dictionary learning. First, a dictionary of sparse atoms is learned using patches extracted from single person images. Then, the learned dictionary is exploited to obtain a sparsity-driven residual group representation, which is finally matched to perform the re-identification. Extensive experiments on the i-LIDS groups and two newly collected datasets show that the proposed solution outperforms state-of-the-art approaches
Esplorazioni semantiche dei contributi: visualizzare complessità e connessioni nelle ricerche su territori, aziende e gestione
No full textIl contributo è il resoconto del tavolo tematico n.3 progetti di ricerca: Territori, Aziende, Gestione, moderato da Luca Casarotto, Giovanni Borga, Maria Antonietta Sbordone alla conferenza annuale SID Società Italiana Design tenutasi a Venezia nei giorni 4-5 luglio 2024
F. Barbaro, De re uxoria, a cura di C. Griggio e C. Kravina
No full textRecensione all'edizione critica del De re uxoria di Francesco Barbar
La penisola salentina: elementi di discontinuità nelle dinamiche di sfruttamento del territorio in età messapica e in età romana
No full textAnalysis of the Salento peninsula agrarian landscape, in particular of Lecce province, aimed at defining the possible transformations which marked various moments of the Roman conquest. Data of the rural settlement during the IV-III century B.C. have been compared with the ones of the II century B.C. The resulting data of the surveys seem to show the almost total lack of little “messapic farms” datable to V-III century B.C.; on the contrary, a systematic occupation of the countryside was found in Oria area. Presence of farms is reported since the II century B.C. and it could be the result of the new region arrangement defined by the Roman conquest, which also caused the realization of a vast system of centuriation involving the whole Salento peninsula. Data of the GIS developed by the Laboratory of Ancient Topography and Photogrammetry (University of Salento), results of archaeological sistematic survey, have been used to explain the dynamics of the region occupation and exploitation
Convergenze parallele. I broadcaster tra lineare e non lineare
No full textA partire dal secondo decennio degli anni Duemila, le modalità di distribuzione e consumo della TV non lineare hanno iniziato ad assumere una rilevanza crescente per l’intero sistema del broadcasting. Uno degli aspetti più interessanti della neo-TV convergente si trova proprio nell’affiancamento delle modalità di circolazione non lineari a quelle lineari. Sullo sfondo di questo “paradigma dell’integrazione”, il saggio propone una prima esplorazione delle logiche adottate dai gruppi TV italiani per integrare le classiche modalità distributive con quelle più innovative legate all’offerta on demand. L’indagine parte, inizialmente, dall’identificazione e confronto delle differenti forme di complementarietà sviluppate dagli attori FTA e pay, per approdare, successivamente, a un focus dedicato esclusivamente alle strategie messe in atto dalla tv a pagamento (Sky Italia e Mediaset Premium). L’innovazione tecnologica e le nuove sfide imposte dai competitor internazionali (Netflix e Amazon Prime Video) hanno generato significativi cambiamenti nel sistema televisivo nazionale. Tuttavia, la forte centralità assunta dalle reti e dai gruppi editoriali durante il processo di transizione all’on demand, ha condotto, nel Bel Paese, verso “convergenze parallele” di completamento, piuttosto che a una vera e propria rivoluzione
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