8,111 research outputs found
An Adult with Episodic Abnormal Limb Posturing
info:eu-repo/semantics/publishedVersio
The application of interactive graphics to large time-dependent hydrodynamics problems
A written companion of a movie entitled "Interactive Graphics at Los Alamos Scientific Laboratory" was presented. While the movie presents the actual graphics terminal and the functions performed on it, the paper attempts to put in perspective the complexity of the application code and the complexity of the interaction that is possible
Kata Sifat Dalam Bahasa Inggris Dan Bahasa Tabaru Suatu Analisis Kontrastif
This study entitled “ The Adjective in English and Tabaru Language: A Contrastive Analysis‟‟ aims at identifiying and classifiying the adjectives in English and Tabaru Language, in terms of froms types and position. The English data were collected from some English book. while the Tabaru Language data was collected from six s informants. The data was analyzed using Frank , than theory than contrasted Lado‟s theory to find out the differences adjective of both Language in terms of their types and position. The result shows that English has six types of adjectives those are determiner ( article, demonstrative adjective, possessive adjective, numeral adjective, relative and interrogative adjective, and adjective of indenfinitie quantity). And descriptive adjectives whereas Tabaru Language has those types except relative adjective in term of position. Tabaru Language doesn‟t have adjectives after in definite pronoun
Laser printer\u27s image quality using paper substrates
This thesis reports the results of an investigation into the quality of an image produced by a laser printer. The laser printer used was the Kodak Ektaprint Electronic Publishing System, 300 dots per inch, resolution. It was found that certain aspects of the image quality vary with the paper substrate. Papers used in this experiment varied in basis weights and qualities of smoothness, brightness, gloss, opacity, porosity and caliper.
The papers chosen were of three basis weights, two of each weight. six papers in all were tested.
Quantitfication and subjective judgement were used for evaluation of image quality. Image quality was evaluated based on the following criteria:
(a) Tonal reproduction/toner transfer
(b) Resolution: (i) number of lines per millimeter resolved
(ii) Line thickness in millimeters reprduced
(c) Edge Definition as defined by edge raggedness and blur
Some aspects of image quality were affected by paper variables. Basis weight alone does not affect image quality. However, factors such as smoothness, porosity and caliper had a significant, although subtle effect on tonal reproduction
Deconvolving the information from an imperfect spherical gravitational wave antenna
We have studied the effects of imperfections in spherical gravitational wave
antenna on our ability to properly interpret the data it will produce. The
results of a numerical simulation are reported that quantitatively describe the
systematic errors resulting from imperfections in various components of the
antenna. In addition, the results of measurements on a room-temperature
prototype are presented that verify it is possible to accurately deconvolve the
data in practice.Comment: 5 pages, 2 figures, to be published in Europhysics Letter
On the Sensitivity of a Hollow Sphere as a Multi-modal Resonant Gravitational Wave Detector
We present a numerical analysis to simulate the response of a spherical
resonant gravitational wave detector and to compute its sensitivity. Under the
assump- tion of optimal filtering, we work out the sensitivity curve for a
sphere first taking into account only a single transducer, and then using a
coherent analysis of the whole set of transducers.Comment: 24 pages, 11 figures, published versio
Cosmological solutions in generalized hybrid metric-Palatini gravity
We construct exact solutions representing a
Friedmann-Lema\^itre-Robsertson-Walker (FLRW) universe in a generalized hybrid
metric-Palatini theory. By writing the gravitational action in a scalar-tensor
representation, the new solutions are obtained by either making an ansatz on
the scale factor or on the effective potential. Among other relevant results,
we show that it is possible to obtain exponentially expanding solutions for
flat universes even when the cosmology is not purely vacuum. We then derive the
classes of actions for the original theory which generate these solutions.Comment: 14 pages, 17 figure
On the Transferability of Knowledge among Vehicle Routing Problems by using Cellular Evolutionary Multitasking
Multitasking optimization is a recently introduced paradigm, focused on the
simultaneous solving of multiple optimization problem instances (tasks). The
goal of multitasking environments is to dynamically exploit existing
complementarities and synergies among tasks, helping each other through the
transfer of genetic material. More concretely, Evolutionary Multitasking (EM)
regards to the resolution of multitasking scenarios using concepts inherited
from Evolutionary Computation. EM approaches such as the well-known
Multifactorial Evolutionary Algorithm (MFEA) are lately gaining a notable
research momentum when facing with multiple optimization problems. This work is
focused on the application of the recently proposed Multifactorial Cellular
Genetic Algorithm (MFCGA) to the well-known Capacitated Vehicle Routing Problem
(CVRP). In overall, 11 different multitasking setups have been built using 12
datasets. The contribution of this research is twofold. On the one hand, it is
the first application of the MFCGA to the Vehicle Routing Problem family of
problems. On the other hand, equally interesting is the second contribution,
which is focused on the quantitative analysis of the positive genetic
transferability among the problem instances. To do that, we provide an
empirical demonstration of the synergies arisen between the different
optimization tasks.Comment: 8 pages, 1 figure, paper accepted for presentation in the 23rd IEEE
International Conference on Intelligent Transportation Systems 2020 (IEEE
ITSC 2020
Nonminimal coupling of perfect fluids to curvature
In this work, we consider different forms of relativistic perfect fluid
Lagrangian densities, that yield the same gravitational field equations in
General Relativity. A particularly intriguing example is the case with
couplings of the form , where is the scalar
curvature, which induces an extra force that depends on the form of the
Lagrangian density. It has been found that, considering the Lagrangian density
, where is the pressure, the extra-force vanishes. We argue
that this is not the unique choice for the matter Lagrangian density, and that
more natural forms for do not imply the vanishing of the
extra-force. Particular attention is paid to the impact on the classical
equivalence between different Lagrangian descriptions of a perfect fluid.Comment: 6 pages. V2: minor changes and references adde
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