Results 31 to 40 of about 2,982,469 (235)

The multiple effects of gradient coupling on network synchronization

open access: yes, 2007
Recent studies have shown that synchronizability of complex networks can be significantly improved by asymmetric couplings, and increase of coupling gradient is always in favor of network synchronization.
Lai, Choy Heng   +3 more
core   +1 more source

Quantifying spatial patterns of urban building morphology in the China’s Guangdong-Hong Kong-Marco greater bay area

open access: yesInternational Journal of Digital Earth
Understanding the spatial patterns of urban building morphology is crucial for revealing the interplay between the built and social environments. Previous research has predominantly concentrated on the computation of building-level metrics which makes it
Bin Wu, Hailan Huang, Yu Wang
doaj   +1 more source

Simulated design strategies for SPECT collimators to reduce the eddy currents induced by MRI gradient fields [PDF]

open access: yes, 2015
Combining single photon emission computed tomography (SPECT) with magnetic resonance imaging (MRI) requires the insertion of highly conductive SPECT collimators inside the MRI scanner, resulting in an induced eddy current disturbing the combined system ...
Joseph, Wout   +6 more
core   +2 more sources

Gradient Emotional Analysis

open access: yesRANLP - Student Research Workshop, 2017
Over the past few years a lot of research has been done on sentiment analysis, however, the emotional analysis, being so subjective, is not a well examined dis-cipline. The main focus of this proposal is to categorize a given sentence in two dimensions - sentiment and arousal.
openaire   +1 more source

Leaf Morphological Traits and Leaf Nutrient Concentrations of European Beech Across a Water Availability Gradient in Switzerland

open access: yesFrontiers in Forests and Global Change, 2020
Climate change and the expected increase in frequency of dry summers are likely to affect the growth of important tree species. We investigated relationships between morphological and chemical leaf traits of European beech (Fagus sylvatica L.) and ...
Maryam Salehi   +10 more
doaj   +1 more source

Analysis of temperature gradient in concrete pavement [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2018
The paper presents the results of experimental research that is the continuation of the research conducted as a part of a Ph.D. dissertation. The experimental research consisted in measuring the temperature at various depths inside a concrete slab ...
Grzegorz Rogojsz
doaj   +1 more source

Adaptive Restart of the Optimized Gradient Method for Convex Optimization

open access: yes, 2017
First-order methods with momentum such as Nesterov's fast gradient method are very useful for convex optimization problems, but can exhibit undesirable oscillations yielding slow convergence rates for some applications.
Fessler, Jeffrey A., Kim, Donghwan
core   +1 more source

Quantifying Surface Urban Heat Island Formation in the World Heritage Tropical Mountain City of Sri Lanka

open access: yesISPRS International Journal of Geo-Information, 2018
Presently, the urban heat island (UHI) phenomenon, and its adverse impacts, are becoming major research foci in various interrelated fields due to rapid changes in urban ecological environments.
Manjula Ranagalage   +6 more
doaj   +1 more source

On the Complete Integrability of Nonlinear Dynamical Systems on Discrete Manifolds within the Gradient-Holonomic Approach

open access: yes, 2011
A gradient-holonomic approach for the Lax type integrability analysis of differentialdiscrete dynamical systems is devised. The asymptotical solutions to the related Lax equation are studied, the related gradient identity is stated.
Ablowitz   +37 more
core   +1 more source

Na+-H+ exchange activity in brush-border membrane vesicles isolated from chick small intestine [PDF]

open access: yes, 1995
This study was undertaken to investigate the presence of a Na+{single bond}H+ antiporter in brush-border membrane vesicles (BBMV) isolated from chick small intestine.
Cano Rodríguez, María Mercedes   +2 more
core   +1 more source

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