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Mitigation of the ground reflection effect in real-time locating systems based on wireless sensor networks by using artificial neural networks
(01/01/2013)
Wireless sensor networks (WSNs) have become much more relevant in recent years, mainly because they can be used in a wide diversity of applications. Real-time locating systems (RTLSs) are one of the most promising applications ...
Multi-layer perceptrons to reduce ground reflection effect in real-time locating systems
(01/26/2012)
Nowadays, indoor Real-Time Locating Systems represent one of the most exciting applications based on Wireless Sensor Networks using wireless technologies such as Wi-Fi or ZigBee. Indoor Real-Time Locating Systems based on ...
SVD filtering applied to ground-roll attenuation
(2010)
We present a singular value decomposition (SVD) filtering method for attenuation of the
ground roll. Before the SVD computation, normal move-out (NMO) correction is applied to the seismograms, with the purpose of flattening ...
Ground-roll attenuation using a 2D time-derivative filter
(2009)
We present a new filtering method for the attenuation of ground-roll. The method is based on the application of a bi-dimensional filter for obtaining the time-derivative of the seismograms. Before convolving the filter ...
Variation in biomass allocation and root functional parameters in response to fire history in Brazilian savannas
(2021-01-01)
Fire is a fundamental ecological factor in savannas because it affects vegetation dynamics and ecosystem functioning. However, the effects of fire on below-ground compartments, including biomass and root traits, and their ...
Possible common ground for the metal-insulator phase transition in the rare-earth nickelates RNiO3 (R=Eu, Ho, Y)
(American Physical SocCollege PkEUA, 2002)
Surface photocatalysis: a study of the thickness of TiO(2) layers on the photocatalytic decomposition of soluble indigo blue dye
(Societatea de Chimie din Romania, 2015)
Tree seedlings respond to both light and soil nutrients in a Patagonian evergreen-deciduous forest
(2017)
Seedlings of co-occurring species vary in their response to resource availability and this has implications for the conservation and management of forests. Differential shade-tolerance is thought to influence seedling ...
Adaptive seismic ground roll attenuation using the double density dual tree discrete wavelet transform (dwt) method
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2012)
Seismologists working on the reflection of seismic data have been dealing with noise and trying to attenuate noise as much as possible without damaging a particular signal. Many methods have been used to removenoise types, ...
A complementary use of information from space-based DInSAR and field measuring systems for operational monitoring purposes in open pit iron mines of Carajás mining complex (Brazilian Amazon region)
(2015-01-01)
Now spanning five simultaneous open-pit operations with exploration carried out through open pit benching, Carajás complex encompasses the world's largest iron reserves. Open pit mining operations in the area can lead to ...