140,719 research outputs found
KOREN (Korea's Research Network), and Asia Pacific Information Infrastructure Initiative
No full textIntroducción a la Red de Investigación de Corea (KOREN) para trabajos en conjunto por medio de CUDI (México) CLARA (Colombia) y la APEC para unir bilateralmente la red entre Asia, Latinoamérica y el Caribe.Presentación de la Red de Investigación de Corea (KOREN)68_CMOR10_CUDI_KOREAN_Suk_KOREAN.mov/fl
KOREN (Korea's Research Network), and Asia Pacific Information Infrastructure Initiative
No full textIntroducción a la Red de Investigación de Corea (KOREN) para trabajos en conjunto por medio de CUDI (México) CLARA (Colombia) y la APEC para unir bilateralmente la red entre Asia, Latinoamérica y el Caribe.Presentación de la Red de Investigación de Corea (KOREN)14_CMOR10_Koren_SukL_ KOREN.mov/fl
KOREN (Korea's Research Network), and Asia Pacific Information Infrastructure Initiative
No full textIntroducción a la Red de Investigación de Corea (KOREN) para trabajos en conjunto por medio de CUDI (México) CLARA (Colombia) y la APEC para unir bilateralmente la red entre Asia, Latinoamérica y el Caribe
Operation Management in Reconfigurable Manufacturing Systems: Reconfiguration for Error Handling
No full textReconfigurable manufacturing systems offer quick adjustment of production capacity and functionality in response
to unpredictable market changes as being systems designed at the outset for rapid change in system configuration, its
machines and controls. During the production process, out-of-ordinary events occur dynamically and unpredictably
both at the system (machine breakdowns, change in job’s priorities, etc.) and at the cell level (tool failures, robot
collisions, etc.). Such exceptions interrupt the production process by causing errors in the schedule plan (system level) or
in the task plan (cell level). Error handling is the policy meant for reacting to errors caused by the occurrence of out-ofordinary
events. The reconfiguration ability turns out to be the new technological factor enabling new strategies to
handle out-of-ordinary events of the production process. Both economic and performance aspects need to be considered
in order to make a decision in support of particular error handling policies such as using reconfiguration. This paper,
starting from a simulation case study, highlights advantage of using reconfiguration for error handling. Authors propose
an object-oriented high-level control structure for real-time error handling, which integrates the new reconfiguration for
error handling technology with the existing reactive scheduling system
Finite-volume discretizations and immersed boundaries
No full textIn this chapter, an accurate method, using a novel immersed-boundary approach, is presented for numerically solving linear, scalar convection problems. As is standard in immersed-boundary methods, moving bodies are embedded in a fixed Cartesian grid. The essence of the present method is that specific fluxes in the vicinity of a moving body are computed in such a way that they accurately accommodate the boundary conditions valid on themoving body. To suppress wiggles, tailor-made limiters are introduced for these special fluxes. The first results obtained are very accurate, without requiring much computational overhead. It is anticipated that the method can readily be extended to real fluid-flow equations
Antología de la poesía Eslovena Traducción y notas de María Francisca. de Castro Gil, Introducción de France Koren, Madrid, 1954
No full textPor intennedio de un distinguido cientifico es1oveno que reside en Canadá, el dr. Srečko Pregelj, ha llegado a mis manos un manuscrito sumamente interesante. Se trata de una Antología de la Poesía eslovena, la cual evidentemente había sido preparada para su impresión en 1954, en Madrid. El hecho de que contemos con tan pocas traducciones de obras literarias eslovenas al castellano hace de este descubrimiento algo realmente curioso e importante. La obra es fruto de la colaboración estrecha de un emigrante esloveno, France Koren y de una escritora y poetisa espanola, María Francisca de Castro Gil. El nacimiento de una obra tan singular merece algunas palabras de explicación
Development of an accurate method for advection problems with embedded moving-boundaries
No full textAn accurate method, using a novel immersed-boundary approach, is presented for numerically solving advection problems. As is standard in immersed-boundary methods, moving bodies are embedded in a fixed, ‘Cartesian,’ finite-volume grid. The essence of the present method is that specific fluxes in the vicinity of a moving body are computed in such a way that they accurately and monotonously accommodate the boundary conditions valid on the moving body. Higher-order accurate discretizations in both space and time are presented. To suppress wiggles, tailor-made limiters are introduced for the special fluxes. The results obtained for linear scalar advection problems are very accurate, without requiring much computational overhead. It is anticipated that the method can be easily extended to real fluid-flow equationsAerospace Engineerin
Spatially-localized time dependent solutions including turbulence and their interactions in 2D Kolmogorov flow
No full textIn 2D Kolmogorov flow in small aspect ratio domains, spatially-localized solutions such as kink, traveling or time-dependent kink-antikink pars coexist. However, the conservation of the flow rate in the y direction strongly restrict combination of localized solutions and their positioning. We find that by adding a homogeneous flow U y their positioning is controlled and each of localized solutions including a spatially-localized chaos is isolated. Numerical results suggest that these isolated solutions can be elements constructing a whole flow
Characteristics of overlap region in high-Reynolds number turbulent channel flow
No full textDirect numerical simulation of the fully developed turbulent channel flows have been carried out at the Reynolds number based on the friction velocity and the channel half width, 2000, 4000 and 8000. A hybrid 10th order accurate finite difference scheme in the stream and spanwise directions, and a second-order scheme in the wall-normal direction is adapted as the spatial discretization method. We observed the plateau profiles in the indicator function corresponded to the von Karman constant. Furthermore, second peak of streamwise pre-multiplied spectra were appeared in the same wall normal height, 300 < y+ < 600, in case of Re = 4000. Nevertheless, the effects of the lager than the channel half height scale on the streamwise turbulent intensity are fixed contributions without dependence on Reynolds number. These results suggested that the new streamwise vortexes are formed between buffer layer and outer layer with increasing of Reynolds number
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