Bayesian inferences of the thermal properties of a wall using temperature and heat flux measurements

The assessment of the thermal properties of walls is essential for accurate building energy simulations that are needed to make effective energy-saving policies. These properties are usually investigated through in-situ measurements of temperature and heat flux over extended time periods. The one-dimensional heat equation with unknown Dirichlet boundary conditions is used to model the heat transfer process through the wall. In [F. Ruggeri, Z. Sawlan, M. Scavino, R. Tempone, A hierarchical Bayesian setting for an inverse problem in linear parabolic PDEs with noisy boundary conditions, Bayesian Analysis 12 (2)(2017) 407-433], it was assessed the uncertainty about the thermal diffusivity parameter using different synthetic data sets. In this work, we adapt this methodology to an experimental study conducted in an environmental chamber, with measurements recorded every minute from temperature probes and heat flux sensors placed on both sides of a solid brick wall over a five-day period. The observed time series are locally averaged, according to a smoothing procedure determined by the solution of a criterion function optimization problem, to fit the required set of noise model assumptions. Therefore, after preprocessing, we can reasonably assume that the temperature and the heat flux measurements have stationary Gaussian noise and we can avoid working with full covariance matrices. The results show that our technique reduces the bias error of the estimated parameters when compared to other approaches. Finally, we compute the information gain under two experimental setups to recommend how the user can efficiently determine the duration of the measurement campaign and the range of the external temperature oscillation

Psychological interventions for coronary heart disease

A meta-analysis was conducted on 35 trials involving 10,703 individuals who had experienced a myocardial infarction and were randomised to an intervention involving some form of psychological therapy. Ten of these studies involved individuals with confirmed psychiatric diagnoses. Moderate quality evidence found no reduction of risk for total mortality or revascularisation procedures in comparison to usual care. Low quality evidence found no risk reduction for non-fatal MI although there was a 21% reduction in cardiac mortality. There was also some evidence of benefit on measures of psychological morbidity including anxiety, depression, and stress. It is concluded that psychological interventions may reduce cardiac mortality, although stronger evidence is required before this can be definitively concluded. It is also not clear who benefits most from psychological interventions

"Annäherungen an Europa. Beiträge zur deutschen EU-Ratspräsidentschaft 2007". = Approaches to Europe. Contributions to the German EU Presidency 2007. ZEI Discussion Paper No. 175

No abstract

Untersuchungen zur Gesundheitssituation alter Buerger der Stadt Cottbus der Geburtsjahrgaenge 1900 und aelter

HUB (B11) - 91 HB 2287 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Das Verhalten des Risikofaktorenprofils einer 1 %igen Stichprobe der Bevoelkerung von Zwickau-Stadt

HUB (B11) - 87 HB 1868 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Experimentelle Beurteilung von Gebaeudefassaden. Errichtung eines Testzentrums und Anwendung von dynamischen Testverfahren nach dem Standard des EU-Projektes PASSYS Abschlussbericht

Available from TIB Hannover: F98B1614 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman