Search results for "Bunker"
showing 7 items of 7 documents
Occupational hygiene in a waste incineration plant
2003
Abstract The Turku incineration plant was renovated in 1995 to meet the emission requirements of modern waste combustion facilities. It treats presorted municipal waste from 170,000 residents in the Turku area. In the plant, the incineration process produces several types of by-products having importance in terms of occupational hygiene. Although not obligated by the law, the management of the plant has a keen interest in occupational hygiene at the plant, which was studied from 1998 to 2001. Concentrations of microbes, endotoxins, and dust and the noise level were investigated in three different working areas. Microbe measurements were conducted with a six-stage impactor and using the CAMN…
The remote and exclusive taste of border port cities
2020
Pochissime città portuali hanno un legame così esclusivo, intenso e simbiotico con il proprio porto come Hirtshals. La giovanissima città – data di nascita 1919 – è stata fondata in occasione dell’apertura di un nuovo porto artificiale sull’estremità settentrionale della Danimarca, baricentro strategico dei commerci marittimi tra i paesi scandinavi. A riflettere sulla forma e il destino del nuovo insediamento urbano si impegnarono lungamente gli architetti danesi Steen Eiler Rasmussen e Knud Christiansen, vincitori del concorso per la progettazione di Hirtshals. Eccitati dalle recenti avanguardistiche teorie della Garden City ed esaltati dall’idea di fondare una città ex-novo, il loro diseg…
Air-kerma evaluation at the maze entrance of HDR brachytherapy facilities.
2014
In the absence of procedures for evaluating the design of brachytherapy (BT) facilities for radiation protection purposes, the methodology used for external beam radiotherapy facilities is often adapted. The purpose of this study is to adapt the NCRP 151 methodology for estimating the air-kerma rate at the door in BT facilities. Such methodology was checked against Monte Carlo (MC) techniques using the code Geant4. Five different facility designs were studied for (192)Ir and (60)Co HDR applications to account for several different bunker layouts.For the estimation of the lead thickness needed at the door, the use of transmission data for the real spectra at the door instead of the ones emit…
Measurements of Thermal and Resonance Neutron Fluence and Induced Radioactivity Inside Bunkers of Medical Linear Accelerators in the Center of Oncolo…
2016
Emission of high-energy X-ray and electron therapeutic beams from medical linear accelerators is related to undesirable neutron production and to induction of radioactivity. In this work, measurements of thermal and resonance neutron fluence and induced radioactivity were performed inside two bunkers with medical linacs — Elekta in the Center of Oncology in Opole (Poland). The bunkers differ with a construction of their walls. The neutron measurements were performed by means of the induced activity method during emission of the 18 MV X-ray beam. The investigation of radioactivity induced by neutrons was based on the method of off-line gammaray spectroscopy measurements. This work has shown …
PATRIMONIO MILITARE E PROGETTI DI RIGENERAZIONE URBANA. L’INFRASTRUTTURA BELLICA DELL’ATLANTIC WALL E DI SAINT-NAZAIRE
2013
Nel 2010, la base sottomarina di Saint-Nazaire è stata dichiarata «patrimonio del XX secolo» dal Ministère de la Culture et de la Communnication francese ed è divenuta il simbolo di un nuovo approccio patrimoniale che riconosce il patrimonio materiale e immateriale in tutte le sue forme, non limitandosi soltanto al manufatto certificato come monumento. La memoria, i beni materiali o i luoghi poco conosciuti possono così contribuire a definire una nuova dimensione urbana, che si relaziona al futuro. Riferirsi esplicitamente al tema del rapporto tra waterfornt e patrimoinio militare, attraverso l’esempio di Saint-Nazaire, ci porta a riflettere sul ruolo del progetto urbano nella trasformazion…
Bunker culturel : la régénération du patrimoine militaire urbain à Saint-Nazaire
2011
Au cours des deux dernières décennies Saint-Nazaire a relancé son développement sans se référer nécessairement aux modèles des métropoles européennes. Concentrées autour de la zone portuaire, près de la base sous-marine allemande, les nouvelles opérations urbaines ont contribué à définir un important projet touristique et culturel. La spécificité symbolique et la valorisation du patrimoine militaire ont permis à Saint-Nazaire de montrer que l’identité d’une ville pouvait activer sa croissance.Over the last two decades, the port city of Saint-Nazaire has encouraged urban redevelopment without necessarily following the models suggested by other European cities. An important cultural and touri…
Waterfront e patrimonio militare: la base sottomarina di Saint-Nazaire
2012
Isolated from its harbour by the submarine base built during World War II, Saint-Nazaire has added to its development over the last two decades, without referring to major European models. An important arts and tourist center has been built around the port zone, close to the German submarine base. The converted military structure, which is situated in an impressive public space, has been endowed with a new sense of identity. It stands out as the main element in the urban regeneration process, focusing on the cultural and tourist character of the programme and aiming to reinforce the relationship between the city and its port.