Results 1 to 10 of about 2,201,433 (237)

Knotty-centrality: finding the connective core of a complex network. [PDF]

open access: yesPLoS ONE, 2012
A network measure called knotty-centrality is defined that quantifies the extent to which a given subset of a graph's nodes constitutes a densely intra-connected topologically central connective core. Using this measure, the knotty centre of a network is
Murray Shanahan, Mark Wildie
doaj   +5 more sources

Identificación del cilindro nudoso en imágenes TC de trozas de Pinus radiata: Estudio Comparativo Identification of knotty core in Pinus radiata logs from CT images: Comparative Study

open access: yesMaderas: Ciencia y Tecnología, 2012
El objetivo de este estudio fue comparar la precisión de los algoritmos de máxima verosimilitud (MV) y otro basado en redes neuronales artificiales (RNA), en la identificación del cilindro nudoso a partir de imágenes TC (Tomografía Computarizada) de ...
Gerson Rojas Espinoza   +1 more
doaj   +3 more sources

Erratum to: Effects of pruning on knotty core taper and form of Pinus radiata and Pinus pinaster [PDF]

open access: yesEuropean Journal of Wood and Wood Products, 2016
Due to an error during conversion of Geographic Units (Latitude, Longitude) from UTM coordinates, information given for location of the experimental plots in Table 1 of the manuscript is not correct. The data of location of the plots should be replaced by: Site Index has been recalculated at the time of establishment of the pruning plots.
Andrea Hevia   +2 more
semanticscholar   +3 more sources

Nonthermal X-ray emission from 3C 273 - The core of a knotty problem?

open access: yesThe Astrophysical Journal, 1990
The quasar 3C 273 was observed in the hard X-ray region of the spectrum (15-300 keV) during a stratospheric balloon flight on July 15, 1987. The emitted photon spectrum is well described by a single power law of photon index -1.61 which corresponds to a hard (20-200 keV) X-ray luminosity of 0.8 x 10 to the 47th ergs/s.
A. J. Dean   +9 more
openaire   +2 more sources

Qualidade da madeira em clone de Eucalyptus grandis W. Hill ex Maiden submetido a desrama artificial Evaluation of sawnwood quality in artificially pruned Eucalyptus grandis W. Hill ex Maiden clones

open access: yesRevista Árvore, 2006
A qualidade da madeira para serraria foi avaliada em plantas de clone de Eucalyptus grandis, submetidas à desrama artificial, utilizando-se a combinação de diferentes alturas de remoção dos galhos, a partir do solo, e de intervenções necessárias para ...
Henrique Quero Polli   +5 more
doaj   +2 more sources

WFPC2 Observations of the Cooling Flow Elliptical in Abell 1795 [PDF]

open access: yes, 1996
We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 \h75 kpc in projection to the north-northwest.
Alan M. Watson   +24 more
core   +6 more sources

IDENTIFICACION DEL CILINDRO NUDOSO EN IMÁGENES TC DE TROZAS PODADAS DE PINUS RADIATA UTILIZANDO REDES NEURONALES ARTIFICIALES IDENTIFICATION OF KNOTTY CORE IN PINUS RADIATA LOGS FROM COMPUTED TOMOGRAPHY IMAGES USING ARTIFICIAL NEURAL NETWORK

open access: yesMaderas: Ciencia y Tecnología, 2010
La factibilidad de identificar el cilindro nudoso en imágenes de tomografía computarizada de rayos X (TC) de trozas podadas de pino radiata (Pinus radiata D.
Gerson Rojas Espinoza   +1 more
doaj   +1 more source

Large-scale network organization in the avian forebrain: a connectivity matrix and theoretical analysis [PDF]

open access: yes, 2013
Many species of birds, including pigeons, possess demonstrable cognitive capacities, and some are capable of cognitive feats matching those of apes.
Bingman, VP   +4 more
core   +3 more sources

VLT observations of the asymmetric Etched Hourglass Nebula, MyCn 18 [PDF]

open access: yes, 2014
Context. The mechanisms that form extreme bipolar planetary nebulae remain unclear. Aims. The physical properties, structure, and dynamics of the bipolar planetary nebula, MyCn 18, are investigated in detail with the aim of understanding the shaping ...
Clyne, N.   +5 more
core   +2 more sources

SUBARU Near-Infrared Multi-Color Images of Class II Young Stellar Object, RNO91 [PDF]

open access: yes, 2007
We conducted sub-arcsecond near-infrared imaging observations of RNO91 with CIAO mounted on the SUBARU 8.2 m telescope. We present our JHK band data along with optical images, which when considered together reveal a complex circumstellar structure.
FUKAGAWA Misato   +9 more
core   +3 more sources

Home - About - Disclaimer - Privacy