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Radon and thoron daughter activities in the environment of the King George Island (West Antarctica)
Antarctica radon uranium thorium spectrometry
2015/9/10
Results of 253 gamma spectrometric analyses of radon daughters in soil and bedrocks of the King George Island
(West Antarctica) are presented. Measured values range from 0.1 to 58.4 Bq/kg, and from 4...
Millimeter wave spectroscopic measurements of stratospheric and mesospheric constituents over the Italian Alps: stratospheric ozone
millimeter-wave spectroscopy stratospheric ozone isentropic transport
2015/9/2
Measurements of rotational lines emitted by middle atmospheric trace gases have been carried out from the Alpine
station of Testa Grigia (45.9°N, 7.7°E, elev. 3500 m) by means of a Ground-Based Milli...
A signal-strength model for gravity-field spectrum components in a local space
Earth's Gravitational Potential Local Area Spectrum Structure Spherical Cap Harmonic Analysi
2015/8/26
In the Earth gravity-field model, potential coefficients are projections of the Earth gravitational potential on the corresponding spherical harmonics by degree and order. These coefficients reflect t...
Low frequency signal spectrum analysis for strong earthquakes
VLF/LF signal propagation eartquake precursors
2015/8/24
We examined changes in the spectral composition of the low frequency (LF) subionospheric signals from the NRK transmitter (37.5 kHz) in Iceland that were received in Bari (Italy) relative to the earth...
Modern scientific technology has provided a new class of large-scale simultaneous inference
problems, with thousands of hypothesis tests to consider at the same time. Microarrays epitomize this...
Resolution of Biological Microstructure Through In Situ Fluorescence Emission Spectra: An Oceanographic Application Using Optical Fibers
Situ Fluorescence Emission Spectra Biological Microstructure
2015/8/19
One of the challenges we face as oceanographers is the wide range of spatial and temporal scales over which we must measure the physical, biological, and chemical properties and processes in the ocean...
Iterative water-filling for Gaussian vector multiple access channels
channel capacity convex optimization Gaussian channels multiuser channels multiple-access channels multipleaccess communications multiple-antenna systems optimization methods power control water-filling
2015/8/11
We develop an efficient iterative water-filling algorithm to find an optimal transmit spectrum for maximum sum capacity in a Gaussian multiple access channel with vector inputs and a vector output. Th...
A duality view of spectral methods for dimensionality reduction
Duality spectrum the nonlinear dimension reduction locally linear embedding Laplacian sparse matrix
2015/8/10
We present a unified duality view of several recently emerged spectral methods for nonlinear dimensionality reduction, including Isomap, locally linear embedding, Laplacian eigenmaps, and maximum vari...
COMPARISON OF SPACEBORNE AND AIRBORNE HYPERSPECTRAL IMAGING SYSTEMS FOR ENVIRONMENTAL MAPPING
Remote Sensing Hyperspectral Comparison Platforms Land Cover Mapping
2015/7/30
The main purpose of this study was to compare hyperspectral remotely sensed data collected by the Hyperion satellite, and the
airborne Real-time Data Acquisition Camera System (RDACS-3) and the Airb...
A GAMMA-CONVERGENCE APPLIED TO MULTISPECTRAL IMAGE CLASSIFICATION AND RESTORATION
Image Classification Image Restoration Multispectral satellite image Remote Sensing
2015/7/30
The main objective of this paper is to develop a model which combines in the same process image classification and restoration.
Image classification consists of assigning a label to each site of an ...
APPLICATIONS BASED ON ORTHOCORRECTED HIGH RESOLUTION AND HYPERSPECTRAL IMAGES
Remote sensing Orthorectification Archaeology Mapping Application Updating
2015/7/30
The availability and variety of high resolution satellite and hyperspectral aerial images have led us to consider how image geometric
aspects can condition remote sensing applications . Our main pur...
FEATURE EXTRACTION OF HYPERSPECTRAL IMAGES USING MATCHING PURSUIT
Hyper-Spectral Sensing Wavelet Transform Matching Pursuit Feature Extraction Classification
2015/7/30
Hyperspectral images contain rich and fine spectral information, an improvement of land use/cover classification accuracy is
expected from the use of such images. However, the classification methods...
ORTHOPROJECTION TESTS OF HYPERSPECTRAL DATA IN STEEP SLOPE ZONES
Remote Sensing Image Geometry Orthoprojection whiskbroom accuracy Hyper spectral Neural network RFM
2015/7/29
Nowadays hyperspectral data are really important in the environmental field. While the advantages, due to their radiometric features
are broadly documented a rigorous metric verification is still ab...
WAVELET DECOMPOSITION OF HYPERSPECTRAL REFLECTANCE DATA FOR QUANTIFYING PHOTOSYNTHETIC PIGMENT CONCENTRATIONS IN VEGETATION
Remote Sensing Vegetation Hyper spectral Analytical Experiment
2015/7/29
The dynamics of pigment concentrations are related to vegetation photosynthetic potential and hence primary production, nutrient
status, stress physiology and plant-environment interactions. Therefo...
Sensitivity Analysis of Spectral Indices to Ozone Absorption Using Physical Simulations in a Forest Environment: Comparative Study between MODIS, SPOT VéGéTATION & AVHRR
Spectral Indices Ozone Absorption Using Physical Simulations
2015/7/29
Considering a forest cover (Balsam Fir with various densities) we analyze the sensitivity of several vegetation indices to
ozone absorption using physical simulations in the spectral bands of MODIS,...