1,426 research outputs found
Perspectivar o pensamento do design
presente estudo visa contribuir para uma perspectivação do design thinking, que assume cada vez mais importância no mundo do design e em áreas externas ao design. Pretendemos acentuar a relevância da adopção do design thinking como forma de beneficiar e melhorar os processos criativos no seio das organizações. O artigo divide-se em quatro partes: a complexidade da experiência humana, o peso do valor acrescentado no pensamento do design, os cinco modos propostos pela Universidade de Stanford para o pensamento do design e, finalmente, a apologia do movimento colaborativo. Neste contexto, terá especial destaque, em vários níveis, a relevância da interdisciplinaridade na resolução de problemas
How to Find Suitable Ontologies Using an Ontology-based WWW Broker
Knowledge reuse by means of outologies now faces three important problems: (1) there are no standardized identifying features that characterize ontologies from the user point of view; (2) there are no web sites using the same logical organization, presenting relevant information about ontologies; and (3) the search for appropriate ontologies is hard, time-consuming and usually fruitless. To solve the above problems, we present: (1) a living set of features that allow us to characterize ontologies from the user point of view and have the same logical organization; (2) a living domain ontology about ontologies (called ReferenceOntology) that gathers, describes and has links to existing ontologies; and (3) (ONTO)2Agent, the ontology-based www broker about ontologies that uses the Reference Ontology as a source of its knowledge and retrieves descriptions of ontologies that satisfy a given set of constraints. (ONTO)~Agent is available at http://delicias.dia.fi.upm.es/REFERENCE ONTOLOGY
Dynamic behaviour of saturated poroelastic layers with embedded wall submited to seismic actions
Behaviour of poroelastic saturated materials submitted to dynamic actions is
strongly dependent of the solid skeleton permeability and the frequency of the movement.
Depending on these quantities, undrained behaviour or fully drained behaviour occurs for
total coupled interaction or for null interaction, respectively. Between these limit cases, some
relative movement occurs among solid skeleton and fluid, generating viscous damping,
which, in turn, modifies the elastic response of the system. This paper presents results of
coupled behaviour in poroelastic saturated layers with an embedded impermeable wall,
submitted to seismic actions. A Finite Element code developed at the University of Coimbra
(FEMEPDYN), with coupled formulation us−uw−p, was used for this purpose. Dynamic
responses of poroelastic layers with an embedded wall are compared with non-porous
materials for similar conditions. Damping of non-porous materials was previously calculated
by calibration of the Rayleigh coefficients in order to match the free field responses for both
materials types. Unlike for the free field analysis, results reveal some differences between
both materials responses with the presence of the wall, due to the volumetric deformations
imposed by the embedded wall. Also, those volumetric deformations have a more uniform
distribution in poroelastic layers with permeabilities that represent near total and near fully
drained behaviour
Clinical evidence on high flow oxygen therapy and active humidification in adults
AbstractRecently there has been growing interest in an alternative to conventional oxygen therapy: the heated, humidified high flow nasal cannula oxygen therapy (HFNC). A number of physiological effects have been described with HFNC: pharyngeal dead space washout, reduction of nasopharyngeal resistance, a positive expiratory pressure effect, an alveolar recruitment, greater humidification, more comfort and better tolerance by the patient, better control of FiO2 and mucociliary clearance. There is limited experience of HFNC in adults. There are no established guidelines or decision-making pathways to guide use of the HFNC therapy for adults. In this article we review the existing evidence of HFNC oxygen therapy in adult patients, its advantages, limitations and the current literature on clinical applications. Further research is required to determine the long-term effect of this therapy and identify the adult patient population to whom it is most beneficial
The Phase Diagrams of the Schwinger and Gross-Neveu Models with Wilson Fermions
A new method to analytically determine the partition function zeroes of
weakly coupled theories on finite-size lattices is developed. Applied to the
lattice Schwinger model, this reveals the possible absence of a phase
transition at fixed weak coupling. We show how finite-size scaling techniques
on small or moderate lattice sizes may mimic the presence of a spurious phase
transition. Application of our method to the Gross-Neveu model yields a phase
diagram consistent with that coming from a saddle point analysis.Comment: Talk at LATTICE99, 3 pages, 2 figure
Reference Ontology and (ONTO)2 Agent: The Ontology Yellow pages
Knowledge reuse by means of ontologies faces three important problems at present: (1) there are no standardized identifying features that characterize ontologies from the user point of view; (2) there are no web sites using the same logical organization, presenting relevant information about ontologies; and (3) the search for appropriate ontologies is hard, time-consuming and usually fruitless. To solve the above problems, we present: (1) a living set of features that allow us to characterize ontologies from the user point of view and have the same logical organization; (2) a living domain ontology about ontologies (called Reference Ontology) that gathers, describes and has links to existing ontologies; and (3) (ONTO)2Agent, the ontology-based WWW broker about ontologies that uses Reference Ontology as a source of its knowledge and retrieves descriptions of ontologies that satisfy a given set of constraints
Long Range Anticorrelations and Non-Gaussian Behavior of a Leaky Faucet
We find that intervals between successive drops from a leaky faucet display
scale-invariant, long-range anticorrelations characterized by the same
exponents of heart beat-to-beat intervals of healthy subjects. This behavior is
also confirmed by numerical simulations on lattice and it is faucet-width- and
flow-rate-independent. The histogram for the drop intervals is also well
described by a L\'evy distribution with the same index for both histograms of
healthy and diseased subjects. This additional result corroborates the evidence
for similarities between leaky faucets and healthy hearts underlying dynamics.Comment: Self-extracting uuencoded postscript file. Phys.Rev.E (Rap.Comm.).
Related papers can be found at http://www.if.uff.br/~tjpp/tjppe.htm
Classical analogous of quantum cosmological perfect fluid models
Quantization in the mini-superspace of a gravity system coupled to a perfect
fluid, leads to a solvable model which implies singularity free solutions
through the construction of a superposition of the wavefunctions. We show that
such models are equivalent to a classical system where, besides the perfect
fluid, a repulsive fluid with an equation of state is present.
This leads to speculate on the true nature of this quantization procedure. A
perturbative analysis of the classical system reveals the condition for the
stability of the classical system in terms of the existence of an anti-gravity
phase.Comment: Latex file, 10 pages, 3 figure
Improvement of Production Line in the Automotive Industry Through Lean Philosophy
This work refers to concepts and definitions of Lean Philosophy. The main targets were to study how waste reduction can be achieved on a production scenario, by identifying added-value operations, enhance productivity, levelling and over-processing reduction. The project behind this study is a massive one, which involves the installation of seven final production lines and more seven pre-assembly lines, being considered by the company, a project that must be as profitable as possible. After implementation and validation, costs were evaluated and the savings reached 10,9 % (2 159 000 €) considering all costs of industrialization.info:eu-repo/semantics/publishedVersio
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