Search results for " Architecture"
showing 10 items of 2595 documents
Le lave. Gli usi ornamentali nell'architettura storica in Sicilia
2012
L’attività vulcanica in Sicilia e nelle isole limitrofe ha nel corso dei millenni contribuito a modellare l’aspetto fisico di un vasto comprensorio, generando sconfinati giacimenti naturali di materiale lapideo impiegato fin dall’età antica nell’attività edificatoria. Relativamente all’utilizzo in architettura, va sottolineata l’ambivalenza di questo materiale chiamato nei secoli a svolgere tanto la funzione di pietra da costruzione, quanto quella di pietra ornamentale. Catania e l’intera area etnea, ma anche l’isola di Lipari, conservano le testimonianze più consistenti e significative di un ricorso ab antiquo alla pietra lavica e ai suoi derivati in architettura. Da una ricognizione compl…
La Wagnerschule (Vienna 1894-1912): Wagner e la Moderne Architekture
2018
Otto Wagner, fra il 1894 e il 1912, mette in atto una riforma ‘verticistica’ di quel principio della riorganizzazione del visibile che è uno dei cardini della rivoluzione esteti- ca dell’Art Nouveau. A differenza delle altre compagini di protagonisti del Modernismo il nucleo di allievi della sua scuola (tra cui Hoffmann, Plečnik, Deininger, Schönthal, Hoppe, Fuchs), così come i suoi assistenti (fra cui primeggia J. M. Olbrich) e i fiancheggiatori esterni (valga per tutti il caso di M. Fabiani), pur non differenziandosi sul piano dell’orientamento interdisciplinare si distinguono, data la formazione, per una peculiare impronta accademica della loro preparazione ‘al moderno’ tale da consentir…
MVC Frameworks in Web Development
2012
With the increased demand of complex, well-scalable and maintainable web applications, the MVC architecture is increasing in popularity and frameworks (whether they utilize the MVC architecture or not) are quickly becoming de facto –standard in web development. This Bachelor’s Thesis introduces the use of MVC architecture in web development and how several web application frameworks make use of it. This research introduces the concepts of both the MVC architecture and web application frameworks but does not go into the basics of web development. Three examples of web application frameworks that utilize the MVC architecture are introduced. Due to the constraints provided by the size of this …
Learn to Cache: Machine Learning for Network Edge Caching in the Big Data Era
2018
The unprecedented growth of wireless data traffic not only challenges the design and evolution of the wireless network architecture, but also brings about profound opportunities to drive and improve future networks. Meanwhile, the evolution of communications and computing technologies can make the network edge, such as BSs or UEs, become intelligent and rich in terms of computing and communications capabilities, which intuitively enables big data analytics at the network edge. In this article, we propose to explore big data analytics to advance edge caching capability, which is considered as a promising approach to improve network efficiency and alleviate the high demand for the radio resou…
A Double Auction Mechanism for Virtual Resource Allocation in SDN-based Cellular Network
2016
The explosively growing demands for mobile traffic service bring both challenges and opportunities to wireless net- works, among which, wireless network virtualization is proposed as the main evolution towards 5G. In this paper, we first propose a Software Defined Network (SDN) based wireless virtualization architecture for enabling multi-flow transmission in order to save capital expenses (CapEx) and operation expenses (OpEx) significantly with multiple Infrastructures Providers (InPs) and multiple Mobile Virtual Network Operators (MVNOs). We for- mulate the virtual resource allocation problem with diverse QoS requirements as a social welfare maximization problem with transaction cost. Due…
Sparsity-aware multiple relay selection in large multi-hop decode-and-forward relay networks
2016
In this paper, we propose and investigate two novel techniques to perform multiple relay selection in large multi-hop decode-and-forward relay networks. The two proposed techniques exploit sparse signal recovery theory to select multiple relays using the orthogonal matching pursuit algorithm and outperform state-of-the-art techniques in terms of outage probability and computation complexity. To reduce the amount of collected channel state information (CSI), we propose a limited-feedback scheme where only a limited number of relays feedback their CSI. Furthermore, a detailed performance-complexity tradeoff investigation is conducted for the different studied techniques and verified by Monte …
Computer Networks
2018
This book constitutes the thoroughly refereed proceedings of the 25th International Conference on Computer Networks, CN 2018, held in Gliwice, Poland, in June 2018. The 34 full papers presented were carefully reviewed and selected from 86 submissions. They are organized in topical sections on computer networks; teleinformatics and telecommunications; queueing theory; cybersecurity and quality service.
Representations of the Life-giving Spring feast in Romanian iconography
2021
This article explores the development of the theme of the Life-giving Spring in Byzantine iconography. The path towards its establishment was initiated at the moment when a representation rule, an original convention was set. Thereafter, because of its diffusion in time and space, the theme became enriched by particular mentalities and sensibilities of the epochs and the communities that adopted it as a form of devotion for the Virgin Theotokos. As a result, the representations we have known so far are extremely varied. Contribution: The final purpose of this approach, as well as its contribution, is to highlight the diverse unity of the iconographic tradition and illustrate both the evolut…
Enterprise Architecture : A Perspective on How Far We Have Come, and Directions for the Future
2019
Enterprise Architecture (EA) appears to retain the attention of both practitioners and researchers, as the technological complexity of organizations grows. Several researchers have noted that research on EA has been diversifying over time, leading to inconsistent use of terminologies. Further, the benefit claims and other results, rather frequently, are not based on empirical evidence. These shortfalls in research on EA impede EA from maturing as a discipline and from demonstrating its benefit claims. Although there are reasons to believe that the research on EA has progressed, the extent of the progress and the directions for future research are not evident. This study draws on a meta-revi…
Towards a Contingency Framework for Engineering an Enterprise Architecture Planning Method
2007
Enterprise architecture (EA) has a key role in managing and relating business strategies and processes, information systems, and IC technologies. EA planning devises an EA plan with development steps to make necessary enhancements to the current state of the affairs in EA. Accomplishing EA planning in a systematic and efficient manner requires the availability of frameworks and methods suitable to the situation at hand. The selection and adaptation of these methodical artifacts for the use of EA planning is often quite challenging in practice. We argue that the contingency approach can help in these activities of method engineering (ME), and present a contingency framework (named here EACon…