Search results for "interpretation"
showing 10 items of 1061 documents
Thermodynamics of Nanoparticles: Experimental Protocol Based on a Comprehensive Ginzburg-Landau Interpretation
2014
MATERIAUX+SMR:SDA; The effects of surface and interface on the thermodynamics of small particles require a deeper understanding. This step is crucial for the development of models that can be used for decision-making support to design nanomaterials with original properties. On the basis of experimental results for phase transitions in compressed ZnO nanoparticles, we show the limitations of classical thermodynamics approaches (Gibbs and Landau). We develop a new model based on the Ginzburg-Landau theory that requires the consideration of several terms, such as the interaction between nanoparticles, pressure gradients, defect density, and so on. This phenomenological approach sheds light on …
Boolean operations with implicit and parametric representation of primitives using R-functions
2005
We present a new and efficient algorithm to accurately polygonize an implicit surface generated by multiple Boolean operations with globally deformed primitives. Our algorithm is special in the sense that it can be applied to objects with both an implicit and a parametric representation, such as superquadrics, supershapes, and Dupin cyclides. The input is a constructive solid geometry tree (CSG tree) that contains the Boolean operations, the parameters of the primitives, and the global deformations. At each node of the CSG tree, the implicit formulations of the subtrees are used to quickly determine the parts to be transmitted to the parent node, while the primitives' parametric definition …
Indicators for sustainable mobility in the cities
2011
The creation of a sustainable transport system is the main objective of European transport policy. This system should encourage facilities to connect all people and should be linked with economic, social and environmental aspects of society. Current trends and future challenges will meet a growing "accessibility" demand, highlighting concerns about the sustainability of transport. Therefore one of the priorities of transport policy is the improving of overall quality of transport, including aspects related to: personal safety, accidents and health hazards reduction, protection of passengers rights and of accessibility to remote areas. This paper is dedicated to sustainable development, with…
Clashing Perspectives on Sustainable Development
2019
Abstract We live in a world characterised by speed owing mainly to technology. Everything happens at a faster pace, from the way production and consumption takes place to the way the environment is degrading. Henceforth, sustainable development appeared in response to these consequences. However, considering that we are discussing the topic of sustainable development for over three decades now, it is probably time to bring it forward in another way and try to better understand it through opposing perspectives. Therefore, the present paper explores differing views on the discussed topic, and analyses sustainable development in relation to other similar terms, trying to provide a clear meanin…
About Objective 3-D Analysis of Airway Geometry in Computerized Tomography
2008
The technology of multislice X-ray computed tomography (MSCT) provides volume data sets with approximately isotropic resolution, which permits a noninvasive 3-D measurement and quantification of airway geometry. In different diseases, like emphysema, chronic obstructive pulmonary disease (COPD), or cystic fribrosis, changes in lung parenchyma are associated with an increase in airway wall thickness. In this paper, we describe an objective measuring method of the airway geometry in the 3-D space. The limited spatial resolution of clinical CT scanners in comparison to thin structures like airway walls causes difficulties in the measurement of the density and the thickness of these structures.…
Analysis of discrete and continuous distributions of ventilatory time constants from dynamic computed tomography.
2005
In this study, an algorithm was developed to measure the distribution of pulmonary time constants (TCs) from dynamic computed tomography (CT) data sets during a sudden airway pressure step up. Simulations with synthetic data were performed to test the methodology as well as the influence of experimental noise. Furthermore the algorithm was applied to in vivo data. In five pigs sudden changes in airway pressure were imposed during dynamic CT acquisition in healthy lungs and in a saline lavage ARDS model. The fractional gas content in the imaged slice (FGC) was calculated by density measurements for each CT image. Temporal variations of the FGC were analysed assuming a model with a continuous…
The Content of the Websites: Emergence of Intimate Cyberplaces
2017
On the basis of an interpretation of the content of the contrade’s websites, this chapter proposes that these communities unlock cyberspace through inhabiting cyberplaces. They local ise cyberspace, making it concrete and create intimacy by highlighting their history, special places, and maps of their district, announcing events and posting pictures of them, presenting and explaining their symbol ism, exhibiting emblems and artefacts, and by listing the names and showing pictures of community members and horses that have taken part in the palio. By constructing websites in such a way, the contrade inhabit cyberplaces that are characterised by intimacy and familiarity , as they present their…
Baroja como materia de sus libros: para una lectura de <em>El árbol de la ciencia</em> (1911) en clave autobiográfica
2014
The aim of this paper is to analyze the characteristics of Barojian autobiographical literature and to check if there are enough arguments to state that El arbol de la ciencia is Pio Baroja’s most autobiographical novel. For that purpose, and after going over the scholar’s theories about the autobiographical side of Barojian literature, the article focuses on the study of autobiographical characters in El arbol de la ciencia and attempts to place this novel within its «autobiographical space». Lastly, it suggests a possible interpretation of the double value that we attribute to the main character of the novel, Andres Hurtado, as an autobiographical character and as a generational symbol of…
The oceanic state: a conceptual elucidation in terms of modal contact
2012
Despite its lengthy history in psychoanalysis, the psychological origins, essential features and value of the oceanic state remain open to dispute. This ambiguity has come at a cost to the clarity of theoretical discussions on the topic. In working towards a conceptual elucidation, the author maintains that there are three primary accounts of the oceanic state: the metaphysical one of Romain Rolland, the developmental one of Sigmund Freud, and the cognitive-perceptual one of Anton Ehrenzweig. Based on the notion of modal contact, he argues that the accounts share a general theoretical structure that establishes as the necessary criterion for all oceanic states the loosening of ego boundarie…
Superresolved digital in-line holographic microscopy for high-resolution lensless biological imaging.
2010
Digital in-line holographic microscopy (DIHM) is a modern approach capable of achieving micron-range lateral and depth resolutions in three-dimensional imaging. DIHM in combination with numerical imaging reconstruction uses an extremely simplified setup while retaining the advantages provided by holography with enhanced capabilities derived from algorithmic digital processing. We introduce superresolved DIHM incoming from time and angular multiplexing of the sample spatial frequency information and yielding in the generation of a synthetic aperture (SA). The SA expands the cutoff frequency of the imaging system, allowing submicron resolutions in both transversal and axial directions. The pr…