Search results for "ESOL"

Optical and Geometrical Super‐Resolution

2011

Hyperspectral imager calibration using ceramic color tiles (Conference Presentation)

2019

Sets of chromatic and neutral ceramic tiles are widely used as measurement standards for reflectance factors in color applications. The usual instrument for color measurements is a spectrophotometer that measures the tiles using either a 0:45 or 45:0 illumination and viewing geometry, or with an integrating sphere in order to measure the reflectance factor in either specular excluded or specular included conditions. Having the corresponding measurements of the tile set from a calibrated instrument, systematic errors in the instrument under study can be diagnosed and corrected using a model of the errors and fitting it to the difference in measurements. One such is the Berns-Petersen model, …

An Improved Forecasting Model from Satellite Imagery Based on Optimum Wavelet Bases and Adam Optimized LSTM Methods

2021

This paper proposes a new hybrid approach I-WT-LSTM (i.e., Improved Wavelet Long Short-Term Memory (LSTM) Model) for forecasting non-stationary time series (TS) from satellite imagery. The proposed approach consists of two steps: The first step aims at decomposing TS using Multi-Resolution Analysis wavelet (MRA-WT) into inter-and intra-annual components using 18 different mother wavelets (MW). Then, the energy to Shannon entropy ratio criterion is calculated to select the best MW. The second step is based on the LSTM model using Adam optimizer to predict the future. The proposed approach is tested using TS derived from Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 t…

Crystalline wax coverage of the imaginal cuticle inCalopteryx splendens(Odonata: Calopterygidae)

2009

Abstract In this study we use high resolution SEM to describe the diversity of wax crystals and their distribution on different morphological structures in male individuals of Calopteryx splendens. The entire cuticle surface of this damselfly, with the exception of ommatidia and ocelli, is covered with crystalline wax in dimensions from submicron to micron range. It is shown that shape - rod-like, plate like, filamentous, etc. -, size, and density of crystals vary on different surfaces and in individuals of different ages. Additionally, we demonstrate different types of damage to the crystalline wax layer: scratches, compressions, wear, and contamination. The primary function of the wax cry…

La placa grabada de Balma Guilanyà (Prepirineo de Lleida) y las manifestaciones artísticas del Mesolítico de la Península Ibérica

2011

A carved rock with geometric and/or abstract signs discovered at the Balma Guilanyà site has made possible the analysis of the artistic patterns developed after the end of the Upper Palaeolithic in the Iberian Mediterranean region. Archaeo-stratigraphic, chronometric and chrono-cultural attributes link this finding to the Mesolithic, probably during the tenth millennium cal BP. Graphic analysis and the comparison with different kinds of representations from this same area allows the evaluation of the problematic that surrounds the characterization of West Mediterranean Mesolithic art.

A mediterranean perspective of the neolithization process. The cave of Nerja in the context of andalusia (Spain)

2013

[EN] This paper offers an overview for the Early Neolithic of the southern coast of Andalusia (Spain). Analyses of materials recovered during the 1979-87 excavations in Nerja cave by professor Francisco Jordá Cerdá, including new radiocarbon dates on domestic taxa, allow us to examine the Mesolithic-Neolithic transition. Paleoenvironmental and paleoeconomic data (stratigraphy and bioarcheological data) combined with archaeological data (ornaments, bone tools, lithics, and ceramics were analysed) to provide a regional perspective on the neolithisation of the western Mediterranean. There is an apparent 500-year gap between occupations by the last coastal foragers and the earliest Neolithic fa…

Developing an economically advantageous wind forecasting method for electricity market design with a 15-minute imbalance settlement period

2019

According to legal framework developed by European Commission all EU Member States shall employ 15minute time resolution for imbalance settlement no later than 18th of December 2020 (or 1st of January 2025 in case of derogation). For intermittent energy sources that are traditionally associated with less precise generation forecasts this might result in considerable increase in imbalance costs. This presents a unique challenge for wind power station operators as there is lack of adequate forecasting tools supporting 15-minute time-resolution. The objective of this paper is to test and provide comparative analysis of alternative data interpolation methods in order to determine approach assoc…

Relations between multi-resolution analysis and quantum mechanics

2005

We discuss a procedure to construct multiresolution analyses (MRA) of L2 (R) starting from a given seed function h (s) which should satisfy some conditions. Our method, originally related to the quantum mechanical Hamiltonian of the fractional quantum Hall effect, is shown to be model independent. The role of a canonical map between certain canonically conjugate operators is discussed. This clarifies our previous procedure and makes much easier most of the original formulas, producing a convenient framework to produce examples of MRA. © 2005 American Institute of Physics.

Integrating analytical resolutions in non-targeted wine metabolomics

2015

Direct injection Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS), and ultra-high performance liquid chromatography coupled to mass spectrometry (UPLC/MS) were combined for the non-targeted analysis of wine metabolites. The unrivalled resolution on mass measurement allowed by the former and the separation ability of isomeric and isobaric substances by the latter, clearly increases the scope of detectable unknown metabolites in wines. Such methodology is illustrated through the comparison of chemical spaces of a young and an older Pinot noir wine. RP and HILIC chromatography could reveal up to five isomers for a given mass, throughout the explored mass range. CHO, CHOS …

A grape and wine chemodiversity comparison of different appellations in Burgundy: vintage vs terroir effects.

2013

Abstract This study aimed at assessing the ability of high resolution Fourier Transform Ion Cyclotron Resonance – Mass Spectrometry (FTICR–MS) to differentiate grapes and corresponding wines from distinct vineyards managed by a same producer, according to complex chemical fingerprints. Grape extracts (at harvest) and corresponding wines from four different vineyards, sampled immediately after the alcoholic fermentation over three successive vintages, were analysed by FTICR–MS. Thousands of metabolites that are specific to a given vintage, or a given class (wine, skin or must) could be revealed, thus emphasising a strong vintage effect. The same wines were reanalyzed after a few years in bot…