968 resultados para prosthesis supported by implants


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"April 1992."

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"Answers to Mr. A. Bolmar's criticisms, and a few of his errors corrected"--30 p. at end of vol.

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The work reported in this paper is part of a project simulating maintenance operations in an automotive engine production facility. The decisions made by the people in charge of these operations form a crucial element of this simulation. Eliciting this knowledge is problematic. One approach is to use the simulation model as part of the knowledge elicitation process. This paper reports on the experience so far with using a simulation model to support knowledge management in this way. Issues are discussed regarding the data available, the use of the model, and the elicitation process itself.

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We investigate the mobility of nonlinear localized modes in a generalized discrete Ginzburg-Landau-type model, describing a one-dimensional waveguide array in an active Kerr medium with intrinsic, saturable gain and damping. It is shown that exponentially localized, traveling discrete dissipative breather-solitons may exist as stable attractors supported only by intrinsic properties of the medium, i.e., in the absence of any external field or symmetry-breaking perturbations. Through an interplay by the gain and damping effects, the moving soliton may overcome the Peierls-Nabarro barrier, present in the corresponding conservative system, by self-induced time-periodic oscillations of its power (norm) and energy (Hamiltonian), yielding exponential decays to zero with different rates in the forward and backward directions. In certain parameter windows, bistability appears between fast modes with small oscillations and slower, large-oscillation modes. The velocities and the oscillation periods are typically related by lattice commensurability and exhibit period-doubling bifurcations to chaotically "walking" modes under parameter variations. If the model is augmented by intersite Kerr nonlinearity, thereby reducing the Peierls-Nabarro barrier of the conservative system, the existence regime for moving solitons increases considerably, and a richer scenario appears including Hopf bifurcations to incommensurately moving solutions and phase-locking intervals. Stable moving breathers also survive in the presence of weak disorder. © 2014 American Physical Society.

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A tudás a vállalatok egyre fontosabb erőforrásává vált, ezért tudatos megoldásokkal kell törekedni a szervezeti tudásban rejlő lehetőségek hatékony kihasználására. A tudás kezelésére irányuló tevékenységeket mind technológiai-informatikai, mind HR-, mind pedig szervezeti megoldásokkal lehet támogatni. Jelen cikkben a vállalatok szervezeti megoldásait elemzi a szerző: rámutat a szervezeti struktúrák, a szervezeti kultúra, a vezetői megközelítések (leadership) szerepére, valamint a kommunikáció különböző formáinak lehetőségeire. ______ Knowledge management activities became important part of knowledge oriented organisations, like software development companies. These activities can be supported by technological and organisational solutions. This paper concentrates on the organisational support factors of knowledge management activities in the software development industries, and examines the role of organisational design, structures, processes, communication and management support, while highlights the challenges.

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The objective of this paper is to analyse the effects of international R&D cooperation on firms’ economic performance. Our approach, based on a complete data set with information about Spanish participants in research joint ventures supported by the EU Framework Programme during the period 1995-2005, establishes a recursive model structure to capture the relationship between R&D cooperation, knowledge generation and economic results, which are measured by labour productivity. In the analysis we take into account that the participation in this specific type of cooperative projects implies a selection process that includes both the self-selection by participants to join the consortia and the selection of projects by the European Commission to award the public aid. Empirical analysis has confirmed that: (1) R&D co-operation has a positive impact on the technological capacity of firms, captured through intan-gible fixed assets and (2) the technological capacity of firms is positively related to their productivity.

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Knowledge and its management have been respectively accepted as a critical resource and a core business competency. Despite that literature proves the existence of a gap between the theoretical considerations of Knowledge Management (KM) and their efficient application. Such lacking, we argue, derives from the missing link between a framework of Knowledge Management and the particular methods and guidelines of its implementation. In an attempt to bridge this gap, an original, process- based holistic Knowledge Management framework is proposed, aiming to address the problem of knowledge management application and performance by utilising a set of well accepted Enterprise Modelling (EM) methods and tools.

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The persistence concern implemented as an aspect has been studied since the appearance of the Aspect-Oriented paradigm. Frequently, persistence is given as an example that can be aspectized, but until today no real world solution has applied that paradigm. Such solution should be able to enhance the programmer productivity and make the application less prone to errors. To test the viability of that concept, in a previous study we developed a prototype that implements Orthogonal Persistence as an aspect. This first version of the prototype was already fully functional with all Java types including arrays. In this work the results of our new research to overcome some limitations that we have identified on the data type abstraction and transparency in the prototype are presented. One of our goals was to avoid the Java standard idiom for genericity, based on casts, type tests and subtyping. Moreover, we also find the need to introduce some dynamic data type abilities. We consider that the Reflection is the solution to those issues. To achieve that, we have extended our prototype with a new static weaver that preprocesses the application source code in order to introduce changes to the normal behavior of the Java compiler with a new generated reflective code.

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Building Information Modeling (BIM) concept is able to reshape each AEC project and the industry in general, offering a comprehensive collaboration process over a model of structure with regularly actualized and synchronized information. This report presents an overview of BIM with focus on its core concepts, applications in the project life cycle and benefits for project stakeholders through four case studies carried out during the internship in the engineering office NEWTON - Engineering Consultancy Company. The aim of the four cases studies was to cover multidisciplinary and varied projects. The first case study highlights the engineering project’s workflow and presents a comparison of traditional procedures and BIM concepts applied on the rehabilitation of an existing building. In the second and third case study, attention is focused on the goals achieved, particularly by structural engineer, due to the implementation of the mentioned technology on a full-lifecycle BIM project of a small residence and a complex project of residential building in Porto and on its architectural integration. In addition, through the fourth case study, the spatial coordination of Mechanical, Electrical and Plumbing (MEP) systems at a large-scale hotel project has been analyzed and accomplished, highlighting merits of BIM at this project stage. Through a reduction of the space used for facilities and infrastructures and the ability to identify conflicts and to nullify the related costs, its advantage for a complex building was proved.

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Since children already use and explore applications on smartphones, we use this as the starting point for design. Our monitoring and analysis framework, BaranC, enables us to discover and analyse which applications children uses and precisely how they interact with them. The monitoring happens unobtrusively in the background so children interact normally in their own natural environment without artificial constraints. Thus, we can discover to what extent a child of a particular age engages with, and how they physically interact with, existing applications. This information in turn provides the basis for design of new child-centred applications which can then be subject to the same comprehensive child use analysis using our framework. The work focuses on the first aspect, namely, the monitoring and analysis of current child use of smartphones. Experiments show the value of this approach and interesting results have been obtained from this precise monitoring of child smartphone usage.

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This paper analyses the concept of public interest in sport and the criteria that must be taken into consideration in terms of Government support to clubs and sports associations. The data was collected through semi structured interviews that were applied to nine sports directors with board responsibilities: seven of them from sport clubs and sport associations, and two of them from public administration. The directors pointed out that sport is considered to be of public interest when: it is developed in the concept of “sport for all”, provides health benefi ts and serves as a means of education and social development. Regarding advantages used with public utility status, tax benefi ts and partnerships with the sports system organizations were the most mentioned aspects. Given a better use of fi nancial resources provided by public administration to clubs and associations, sport directors believe that the Government should have a strategy focused on setting priorities and ranking fi nancing criteria for sport. If the government had that strategy, the development of sports results would be much better. The participants also suggest that the Government should conduct an assessment of the social role of sport clubs and associations, according to the public and social interest of sport. In conclusion, sport and physical activity should be considered as public interest activities, provided that: are able to ensure positive effects on health plans and wellness, provide a qualitative and sustainable sport development, improve economic and social development of a population.