Search results for " Applications"

showing 10 items of 4541 documents

Precipitable water vapour content from ESR/SKYNET sun-sky radiometers: validation against GNSS/GPS and AERONET over three different sites in Europe

2018

The estimation of the precipitable water vapour content (W) with high temporal and spatial resolution is of great interest to both meteorological and climatological studies. Several methodologies based on remote sensing techniques have been recently developed in order to obtain accurate and frequent measurements of this atmospheric parameter. Among them, the relative low cost and easy deployment of sun–sky radiometers, or sun photometers, operating in several international networks, allowed the development of automatic estimations of W from these instruments with high temporal resolution. However, the great problem of this methodology is the estimation of the sun-photometric calibration par…

Termodinàmica atmosfèricaAtmospheric Scienceprecipitable water vapor; sun-sky radiometers; validation; GNSS/GPS010504 meteorology & atmospheric sciencesMeteorologyGPSprecipitable water vaporSolar zenith angleSKYNETAeronet01 natural sciences010309 opticsSkynet0103 physical sciencesCalibrationlcsh:TA170-1710105 earth and related environmental sciencesRemote sensingGNSS/GPS[SDU.OCEAN]Sciences of the Universe [physics]/Ocean AtmospherevalidationPrecipitable waterbusiness.industrylcsh:TA715-787sun-sky radiometerslcsh:Earthwork. FoundationsAERONETlcsh:Environmental engineeringwater vapourGNSS applications13. Climate actionInfrared windowGlobal Positioning SystemEnvironmental sciencebusiness
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Automatic orientation and 3D modelling from markerless rock art imagery

2013

This paper investigates the use of two detectors and descriptors on image pyramids for automatic image orientation and generation of 3D models. The detectors and descriptors replace manual measurements and are used to detect, extract and match features across multiple imagery. The Scale-Invariant Feature Transform (SIFT) and the Speeded Up Robust Features (SURF) will be assessed based on speed, number of features, matched features, and precision in image and object space depending on the adopted hierarchical matching scheme. The influence of applying in addition Area Based Matching (ABM) with normalised cross-correlation (NCC) and least squares matching (LSM) is also investigated. The pipel…

Terrestrial laser scanningClose range imageryMatching (statistics)Computer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONScale-invariant feature transformBundle adjustmentAutomationOrientationBundle adjustmentMatchingComputer visionComputers in Earth SciencesEngineering (miscellaneous)Block (data storage)Ground truthOrientation (computer vision)business.industryPipeline (software)Atomic and Molecular Physics and OpticsComputer Science ApplicationsPhotogrammetryINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIAArtificial intelligencebusinessISPRS Journal of Photogrammetry and Remote Sensing
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Range-based versus automated markerless image-based techniques for rock art documentation

2014

Nowadays there is a huge proliferation of fully automatic image-based solutions producing either three-dimensional (3D) point clouds or 3D models. However, the reliability of the output is not usually reported and clarified. This paper presents a comparison of the 3D modelling results achieved on two rock art shelters at separate archaeological sites using a high-resolution digital camera. The 3D point clouds were produced using automatic image-based photogrammetric and computer vision software running either locally (FOTOGIFLE and VisualSFM) or through a webbased reconstruction service (Autodesk 123D Catch). The first two automatic approaches are compared with a manual bundle block adjustm…

Terrestrial laser scanningComputer sciencemedia_common.quotation_subjectcomputer.software_genreDocumentationExcellenceEarth and Planetary Sciences (miscellaneous)Rock artComputers in Earth SciencesEngineering (miscellaneous)media_commonMultimediaData qualityTerrestrial laser scanningComputer Science ApplicationsOrtho-imagePoint cloudINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIAChristian ministryRock artResolutionCartographycomputerImage basedRange (computer programming)Accuracy and precision
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Rapid and eco-friendly synthesis of graphene oxide-silica nanohybrids

2014

The increasing interest in Graphene oxide (GO) is due to many issues: the presence of both sp2-conjugated atoms and oxygen-containing functional groups provides a strong hydrophilicity and the possibility to further functionalize it with other molecules (i.e. π-π interactions covalent attachment etc.) [1]. Furthermore since the GO is biocompatible and noncytotoxic many studies have been recently focused on the development of GO-based nanodevices for bioimaging DNA detection drug delivery. Due to their low cytotoxicity and large internal surface area silica nanoparticles have been taken into account as promising material for biolabeling and drug loading/delivery. Particular consideration has recently been demonstrated for GO-silica composites because of the potentialities for electrical applications their chemical inertia and stability toward ions exposure. The possibility to combine the extraordinary properties of GO and silica offers several advantages for the realization of nanoprobes for biological applications and of biosensor [12]. The strategy for the fabrication of GO-nanosilica nanohybrids can be schematized as follows: (i) synthesis of GO by oxidizing graphite powder with the method described by Marcano et al. [3] (ii) Preparation of oxygen-loaded silica nanoparticles by thermal treatments in controlled atmosphere in order to induce high NIR emission at 1272 nm from high purity silica nanoparticles. (iii) preparation of GrO-silica nanohybrid films via rapid solvent casting in water. The nanohybrids were tested by XPS FTIR Raman analysis UV photoluminescence analysis TGA Zeta potential measurements electrical tests AFM and SEM. Several nanohybrids were prepared by combining two different typologies of GO and two different samples of silica.
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L'intonaco Li Vigni nell'architettura del XX secolo a Palermo. Nuove conoscenze e applicazioni diagnostiche per la manutenzione

2013

Il saggio presenta lo studio degli intonaci formulati per imitare le pietre e i marmi naturali che si diffondono in Sicilia all’inizio del XX secolo ed evidenzia che le prime applicazioni e la diffusione delle nuove malte, anche nel resto dell’Italia, risentono delle sperimentazioni condotte in tutta l’Europa. Il contributo riassume i risultati di una rigorosa e capillare ricognizione tra i brevetti conservati presso l’Archivio Centrale dello Stato a Roma inerenti alle malte per il confezionamento dell’intonaco a “finta pietra”, ne analizza i contenuti in modo critico e pone in risalto i contatti culturali con le sperimentazioni dei materiali in atto nell’ambito dei grandi cantieri di resta…

The paper presents the study of the plaster formulated to imitate the natural stones and marbles that are popular in Sicily in the early twentieth century and points out that the first applications and the dissemination of new mortars also in the rest of Italy feels the influence of the experiments conducted throughout Europe . The contribution summarizes the results of a rigorous and thorough reconnaissance of patents kept in the Archivio Centrale dello Stato in Rome relating to mortars for plastering an artificial stone critically analyzes the content and emphasizes cultural contacts with the experiments on large-scale restoration projects in Italy and France in the late nineteenth century. The analysis of the architectural surfaces is developed with instrumental tests: the levels of adhesion of finishing surface are characterized in particular through a campaign of thermographic investigations and diagnosis is drawn to show that the consolidation of the layers and reintegration are interventions to be introduced ​​within the restoration project and maintenance program.Settore ICAR/19 - Restauro
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Interventistica eco-guidata per l’articolazione d’anca

2013

Lo scopo di questo lavoro è di rivedere le principali applicazioni della interventistica eco-guidata d’anca, descrivendone le indicazioni e la metodologia. L’ecografia è una metodica considerata sicura per i pazienti, in quanto non è stato dimostrato un possibile danno dovuto all’energia trasmessa dagli ultrasuoni ai tessuti del paziente, contrariamente alle metodiche che fanno uso di radiazioni ionizzanti, come la radiografia convenzionale e la tomografia computerizzata. Inoltre, l’ecografia risulta rapida ed efficace nel guidare l’ago verso la sede voluta evitando di intercettare strutture vascolari e/o nervose, consentendo quindi una maggiore sicurezza, rispetto alle tecniche interventis…

The purpose of this work is to review the main applications of ultrasound-guided hip intervention al procedures describing the indications and methodology. Ultrasound is a method considered safe for patients as it has not been shown a possible damage due to ultrasound energy transmitted towards the patient's tissues as opposed to methods that make use of ionizing radiation such as conventional radiography and computed tomography. In addition ultrasound is quick and effective in guiding the needle to the desired location avoiding vascular and/or nerve structures thus enabling greater security compared to the techniques performed in interventional fluoroscopy which also have the disadvantage of a large delivery of ionizing radiation for both patient and operator. Several authors have described the main techniques of ultrasound-guided hip intervention and its various applications that can be both diagnostic (as in the case of joint fluid aspiration to assess the presence or absence of septic arthritis) and therapeutic (as in the case of drugs inoculations or evacuation of exceeding intra-articular fluid).
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Riflessioni comparatistiche sulla revoca della cittadinanza per reati di terrorismo

2023

l fenomeno dei cosiddetti “foreign fighters” e il verificarsi di attacchi terroristici in alcuni paesi dell’Unione europea hanno sollevato la questione relativa alla privazione della cittadinanza come misura di contrasto e tutela della sicurezza pubblica. Questo articolo intende contribuire al dibattito sulla legittimità giuridica di tale misura, esaminando i recenti sviluppi della legislazione in materia e le sue applicazioni in Belgio, Francia, Regno Unito e Italia.

The so-called "foreign fighters" phenomenon and the occurrence of terrorist attacks in some EU countries have raised the question of the deprivation of citizenship as a measure of contrast and protection of public security. This article aims to contribute to the debate on the legal legitimacy of that measure by examining recent developments of the legislation on the subject and its applications in Belgium France Uk and Italy.
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MuLiMs-MCoMPAs: A Novel Multiplatform Framework to Compute Tensor Algebra-Based Three-Dimensional Protein Descriptors

2019

This report introduces the MuLiMs-MCoMPAs software (acronym for Multi-Linear Maps based on N-Metric and Contact Matrices of 3D Protein and Amino-acid weightings), designed to compute tensor-based 3D protein structural descriptors by applying two- and three-linear algebraic forms. Moreover, these descriptors contemplate generalizing components such as novel 3D protein structural representations, (dis)similarity metrics, and multimetrics to extract geometrical related information between two and three amino acids, weighting schemes based on amino acid properties, matrix normalization procedures that consider simple-stochastic and mutual probability transformations, topological and geometrical…

Theoretical computer science010304 chemical physicsbusiness.industryGeneral Chemical EngineeringComputationGeneral ChemistryTensor algebraLibrary and Information Sciences01 natural sciences0104 chemical sciencesComputer Science ApplicationsWeighting010404 medicinal & biomolecular chemistryMatrix (mathematics)Software0103 physical sciencesPrincipal component analysisData pre-processingUser interfacebusinessJournal of Chemical Information and Modeling
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A solution to the stochastic point location problem in metalevel nonstationary environments.

2008

This paper reports the first known solution to the stochastic point location (SPL) problem when the environment is nonstationary. The SPL problem involves a general learning problem in which the learning mechanism (which could be a robot, a learning automaton, or, in general, an algorithm) attempts to learn a "parameter," for example, lambda*, within a closed interval. However, unlike the earlier reported results, we consider the scenario when the learning is to be done in a nonstationary setting. For each guess, the environment essentially informs the mechanism, possibly erroneously (i.e., with probability p), which way it should move to reach the unknown point. Unlike the results availabl…

Theoretical computer scienceAutomatic controlDiscretizationComputer scienceInformation Storage and RetrievalDecision Support TechniquesPattern Recognition AutomatedArtificial IntelligenceComputer SimulationElectrical and Electronic EngineeringStochastic ProcessesModels StatisticalLearning automatabusiness.industryStochastic processSignal Processing Computer-AssistedGeneral MedicineRandom walkComputer Science ApplicationsAutomatonHuman-Computer InteractionControl and Systems EngineeringPoint locationArtificial intelligencebusinessSoftwareAlgorithmsInformation SystemsIEEE transactions on systems, man, and cybernetics. Part B, Cybernetics : a publication of the IEEE Systems, Man, and Cybernetics Society
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Parallel Calculation of CCSDT and Mk-MRCCSDT Energies.

2010

A scheme for the parallel calculation of energies at the coupled-cluster singles, doubles, and triples (CCSDT) level of theory, several approximate iterative CCSDT schemes (CCSDT-1a, CCSDT-1b, CCSDT-2, CCSDT-3, and CC3), and for the state-specific multireference coupled-cluster ansatz suggested by Mukherjee with a full treatment of triple excitations (Mk-MRCCSDT) is presented. The proposed scheme is based on the adaptation of a highly efficient serial coupled-cluster code leading to a communication-minimized implementation by parallelizing the time-determining steps. The parallel algorithm is tailored for affordable cluster architectures connected by standard communication networks such as …

Theoretical computer scienceBasis (linear algebra)Computer scienceComputationGigabit EthernetCode (cryptography)Parallel algorithmBenchmark (computing)Basis functionPhysical and Theoretical ChemistryComputer Science ApplicationsComputational scienceAnsatzJournal of chemical theory and computation
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