0000000000731963
AUTHOR
D. Giordano
Computer model and simulation of a traditional passive cooling ventilation system in a Modern building in Mazara del Vallo (Italy)
Traditional and modern natural ventilation techniques have been integrated in a hybrid system for a retrofitting of public building in the city of Mazara del Vallo (Italy). The hybrid ventilation and air cooling system integrates a wind tower, an indirect evaporative heat exchanger, a ground cooling pipe network and ventilated façade. The first idea was to design a passive cooling system inspired to the typical wind towers of the Middle East, being the area very well ventilated. On the other hand, air humidity in summer is quite high and therefore the effectiveness of indirect evaporative cooling is quite low. For this reason, it was adopted a second passive cooling system consisting in a g…
Measurement of thett¯production cross section inpp¯collisions ats=1.96 TeVusing soft electronb-tagging
The authors present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Using 318 pb{sup -1} of data collected with the CDF II detector, they measure the t{bar t} production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9{sub -1.0}{sup +1.0}(stat.){sub -1.0}{sup +1.1}(syst.) pb. The cross section value assumes a top quark mass of m{sub t} is presented in the paper. This result is cons…
Smoking behaviour among nursing students: attitudes toward smoking cessation.
Introduction: The purpose of the study was to assess tobacco smoking habits among nursing students and how these are influenced by family members and cohabitants. Methods: Cross-sectional study. An anonymous papery questionnaire was administered to nursing students of the three-year course of the University of Palermo. Adjusted Odds Ratio (aOR) are presented. Results: 301 nursing students (63.12 % female) completed the questionnaire (response rate 61.17%). The average age of the sample is 21.88 years (SD ± 2.80). Considering as a dependent variable: “I currently smoke”, the statistically significant independent variables associated are: “Male gender” (aOR 2.09), “Single” (aOR 2.06), “Second…
Analisi numerica di un sistema integrato di ventilazione naturale e raffrescamento passivo
Nel presente lavoro viene presentata ed analizzata una soluzione progettuale per la riqualificazione del Municipio di Mazara del Vallo (Italia) che prevede l’impiego di un sistema integrato di ventilazione naturale e raffrescamento passivo. Il sistema in oggetto combina tecniche tradizionali e moderne di ventilazione e raffrescamento ed è costituito da una torre del vento, da una rete di tubazioni interrate, da una facciata ventilata ed da un camino solare. L’intero sistema è stato progettato in modo tale da ottenere la portata di ventilazione utilizzando la torre del vento ed il camino solare rispettivamente per l’immissione e l’estrazione dell’aria. Il comportamento termico dell’edificio …