Search results for "ARCHITECTURE"
showing 10 items of 3706 documents
Systems Engineering approach in support to the breeding blanket design
2019
Abstract Nowadays the Systems Engineering (SE) methodology is applied in several fields of engineering and it represents a powerful interdisciplinary means to enable the realisation of complex systems taking into account the customer and Stakeholder´s needs. Also in the fusion community, this theme is becoming increasingly pressing and the implementation of the SE approach, from the early stage of design, is now a must. Indeed, within the framework of EUROfusion activities, SE method has been selected for capturing the system and interface requirements and for their management and verification with particular focus to the Breeding Blanket (BB) System of the European Demonstration Fusion Pow…
Integrating topographic, photogrammetric and laser scanning techniques for a scan-to-bim process
2021
Abstract. The preservation of historic buildings can often be particularly difficult due to the lack of detailed information about architectural features, construction details, etc.. However, in recent years considerable technological innovation in the field of Architecture, Engineering, and Construction (AEC) has been achieved by the Building Information Modeling (BIM) process. BIM was developed as a methodology used mainly for new construction but, given its considerable potential, this approach can also be successfully used for existing buildings, especially for buildings of historical and architectural value. In this case, it is more properly referred to as Historic – or Heritage – Buil…
Layout influence on microwave performance of graphene field effect transistors
2018
The authors report on an in-depth statistical and parametrical investigation on the microwave performance of graphene FETs on sapphire substrate. The devices differ for the gate-drain/source distance and for the gate length, having kept instead the gate width constant. Microwave S -parameters have been measured for the different devices. Their results demonstrate that the cut-off frequency does not monotonically increase with the scaling of the device geometry and that it exists an optimal region in the gate-drain/source and gate-length space which maximises the microwave performance.
Citizens’ perceptions in relation to transport systems and infrastructures: a nationwide study in the dominican republic
2021
One of the challenges currently faced by emerging countries is to get their citizens to decide to use sustainable transport for their regular trips, in order to reduce the current vehicular pollution rates. The objective of this descriptive research is to examine the perceptions of Dominicans regarding the state of the country’s transport systems and road infrastructure. For this purpose, a nationwide survey procedure was performed. This cross-sectional research used the data retrieved from a sample of 1260 citizens aged over 18, proportional in gender, age, habitat, and province of the Dominican Republic. The results showed how Dominicans believe that, compared to other road features, pede…
Utopia e distopia nel progetto digitale
2020
Sono passati più di venti anni dalla pubblicazione di Being Digital, il celebre libro di Nicholas Negroponte, all’interno del quale il fondatore del MIT Media Lab affermava che “il passaggio dagli atomi ai bit è irreversibile e inarrestabile”. Tale preannunciata rivoluzione, sembra oggi giunta a una fase più matura coinvolgendo sia la sfera pubblica che quella privata, le professioni, la politica e l’economia. Il digitale, facilitando e razionalizzando di giorno in giorno processi precedentemente analogici, è diventato ubiquo. Se da un lato gli aspetti positivi di queste trasformazioni sono evidenti, altrettanto palesi appaiono le aporie: dalla dipendenza tecnologica al rapporto con i socia…
Formulations and valid inequalities for the capacitated dispersion problem
2023
This work focuses on the capacitated dispersion problem for which we study several mathematical formulations in different spaces using variables associated with nodes, edges, and costs. The relationships among the presented formulations are investigated by comparing the projections of the feasible sets of the LP relaxations onto the subspace of natural variables. These formulations are then strengthened with families of valid inequalities and variable-fixing procedures. The separation problems associated with the valid inequalities that are exponential in number are shown to be polynomially solvable by reducing them to longest path problems in acyclic graphs. The dual bounds obtained from s…
BLANCO AL CUADRADO. Arquitectura blanca en hormigón blanco
2020
[EN] The white color in architecture has a particular dimension for technical-functional, sensory and, above all, spatial reasons. It also contains the symbolic values that over time have determined a kind of myth -with ancient and uncertain origins, but present to contemporary times. The use of the raw concrete allows the construction of intrinsically white buildings, with the possibility of obtaining monomaterial and monochromatic constructions. Throughout the twentieth century, and even today, the mechanical characteristics of white concrete have been continuously implemented and their modalities of use have expanded not only in performance capabilities but also in the aesthetic and expr…
RF Acquisition System Based on μTCA for Testing of High-Gradient Acceleration Cavities
2022
The radio frequency (RF) laboratory hosted in the Corpuscular Physics Institute (IFIC) of the University of Valencia is designed to house a high-power and high-repetition-rate facility to test normal conduction RF accelerator cavities in the S-Band (2.9985 GHz) in order to perform R&D activities related to particle accelerator cavities. The system, which manages the entire process of RF signal generation, data acquisition and closed-loop control of the laboratory, is currently based on a modular and compact PXI platform system. This contribution details the development of a platform with similar features, but which is based on open architecture standards at both the hardware and softwar…
RFID Technology for IoT-Based Personal Healthcare in Smart Spaces
2014
The current evolution of the traditional medical model toward the participatory medicine can be boosted by the Internet of Things (IoT) paradigm involving sensors (environmental, wearable, and implanted) spread inside domestic environments with the purpose to monitor the user’s health and activate remote assistance. RF identification (RFID) technology is now mature to provide part of the IoT physical layer for the personal healthcare in smart environments through low-cost, energy-autonomous, and disposable sensors. It is here presented a survey on the state-of-the-art of RFID for application to bodycentric systems and for gathering information (temperature, humidity, and other gases) about …
Tell Shiyukh Tahtani. New light on the Bronze Age sequence
2014
This report briefly describes the latest results of the Italian rescue excavations at Shiyukh Tahtani on the Upper Syrian Euphrates. Fieldwork continued on the eastern slope of the mound, aiming to further investigate the Bronze Age levels. A main operation, halfway down the slope, focused upon the earliest MB I layers, where a group of burials was unearthed, mostly consisting of adult interments in oval pits and child pot burials. A most striking finding was the ‘Spinstress tomb’. At the foot of the slope, the exploration of a mud-brick compound, dating back to the early third millennium BC, continued. Here further remarkable evidence of massive domestic architecture in a fine Mesopotamian…