Search results for "Bust"
showing 10 items of 1000 documents
Détection automatique de chutes de personnes basée sur des descripteurs spatio-temporels : définition de la méthode, évaluation des performances et i…
2013
We propose a supervised approach to detect falls in home environment adapted to location andpoint of view changes. First, we maid publicly available a realistic dataset, acquired in four differentlocations, containing a large number of manual annotation suitable for methods comparison. We alsodefined a new metric, adapted to real-time tasks, allowing to evaluate fall detection performance ina continuous video stream. Then, we build the initial spatio-temporal descriptor named STHF usingseveral combinations of transformations of geometrical features and an automatically optimised setof spatio-temporal descriptors thanks to an automatic feature selection step. We propose a realisticand pragma…
Rapid Compression Machine. 2013.
2013
A rapid compression machine is a type of ideal internal combustion reactor which is well suited for gas phase kinetics studies and physical processes of combustion. These studies consist in recording the evolution of the reactivity and of the composition of the reacting mixtures as a function of temperature, pressure, residence time and the composition of the compressed mixture. Pressure measurement is used to analyse the evolution of the combustion process, but more recent studies couple pressure measurement with optical diagnostics in order to assess the homogeneity of the combustion process. Speciation based on rapid sampling of the intermediates formed, during the oxidation of the fuel,…
Thermal Engine and Climate Change Challenge
2021
Thermal engines have dominated sectors of economy, and particularly transportation. Their current development and state of the art are the results of XXth century priorities related to economy and environment. In the future, thermal engines will face the challenge of emerging technologies in the frame of sustainable mobility and development. After an analysis of functioning principles and perspectives of development, particularly of combustion engines, thermal engines are compared to other realistic scenarios for transports applications in well-to-wheel and life cycle analysis.
The effects of biomass co-gasification and co-firing on the development of combustion dynamics
2018
Abstract Effects of wheat straw co-firing with gas (propane flame) and co-gasification/co-combustion with wood pellets on the development of thermo-chemical conversion of biomass pellets and on heat energy production were experimentally studied and analyzed with the aim to improve the gasification/combustion characteristics and the applicability of wheat straw as an alternative energy source for cleaner heat energy production. The results suggest that the wheat straw co-firing with propane provides an enhanced thermal decomposition of pellets with more complete combustion of volatiles increasing thus the heat output at thermo-chemical conversion of wheat straw and the produced heat energy p…
I due inediti busti reliquiari d’argento del Tesoro di San Mauro Castelverde (Pa). Don Vincenzo Greco e la circolazione delle reliquie dopo il Concil…
2022
Si esamina la diffusione e la circolazione delle reliquie da Roma alla Sicilia e la conseguente proliferazione, a seguito dei dettami del Concilio di Trento recepiti dai vari Sinodi diocesani, di sacre custodie in metallo prezioso o in legno. Vengono, infatti, indagati alcuni reliquiari d’argento che, custoditi nei Tesori siciliani, sono contestualizzati nella pertinente temperie storico-culturale. Due di essi, inediti e dalla tipologia a busto, sono conservati nel Tesoro della Matrice di San Mauro Castelverde (Pa). Della suppellettile liturgica contenente le sacra vestigia di S. Vittoria, sono stati individuati autore e committenti. L’altra inedita opera, voluta dal marchese Simone I Venti…
Sign and rank covariance matrices with applications to multivariate analysis
2002
Application of a Knowledge Discovery Process to Study Instances of Capacitated Vehicle Routing Problems
2020
Vehicle Routing Problems (VRP) are computationally challenging, constrained optimization problems, which have central role in logistics management. Usually different solvers are being developed and applied for different kind of problems. However, if descriptive and general features could be extracted to describe such problems and their solution attempts, then one could apply data mining and machine learning methods in order to discover general knowledge on such problems. The aim then would be to improve understanding of the most important characteristics of VRPs from both efficient solution and utilization points of view. The purpose of this article is to address these challenges by proposi…
Design of Reliable and Efficient Banki-Type Turbines
2020
A new shape for the external surface of the Crossflow turbine blades is proposed, which allows for the preservation of hydraulic efficiency in spite of a significant maximum blade thickness providing mechanic robustness and reliability. The final shape of the blades is assessed using an iterative solution for two uncoupled models: a 2D computational fluid dynamic (CFD) and a structural 3D finite element method (FEM) analysis of a single blade. Application of the proposed methodology to the design of a power recovery system (PRS) turbine, a new backpressure Crossflow-type inline turbine for pressure regulation, and energy production in a real Sicilian site follows.
Do cilia drive water through the buccopharyngeal and opercular cavities in the fossorial Otophryne robusta tadpole?
1993
Indoor air pollution in extremely poor Colombian households
2013
Objetivo Caracterizar la exposición a la contaminación del aire interior por uso de combustibles sólidos en hogares en situación de pobreza extrema en Colombia. Métodos A partir de la información gubernamental oficial de hogares en situación de pobreza extrema (encuesta Red Unidos de septiembre 2012, n=1,3 millones de hogares y >5 millones de individuos) se estructuraron dos modelos de regresión logística: (i) Factores asociados al uso de combustibles sólidos para cocinar a nivel hogar, (ii) Asociación entre el uso de combustibles sólidos en el hogar y prevalencia de limitaciones de la salud a nivel individuo. Resultados Un total de 530 mil hogares en situación de pobreza extrema donde habi…