Search results for "Fusion"

showing 10 items of 4513 documents

Cooperative spectrum sensing schemes for future dynamic spectrum access infrastructures

2016

spectrum sensingtehokkuusdecision/data fusioncooperative communicationsdynamic spectrum access (DSA)matemaattinen optimointitiedonsiirtononlinear optimizationlangaton tiedonsiirtoradioverkotoptimointiefficiencycognitive radio (CR)taajuusalueetkognitiivinen radiolangattomat verkot
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3-NPA induziert Ischämietoleranz der Rattenleber nach warmer Ischämie

2005

Until now little is known about the potential of 3-nitroproprionic acid (3-NPA) to reduce ischemia/ reperfusion injury (IRI) of the rat liver in vivo.

stomatognathic systemIn vivobusiness.industryRat liverIschemiaMedicinecardiovascular diseasesPharmacologybusinessmedicine.diseaseReperfusion injury
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Considering lithium-ion battery 3D-printing via thermoplastic material extrusion and polymer powder bed fusion

2021

In this paper, the ability to 3D print lithium-ion batteries through thermoplastic material extrusion and polymer powder bed fusion is considered. Focused on the formulation of positive electrodes composed of polypropylene, LiFePO4 as active material, and conductive additives, advantages and drawbacks of both additive manufacturing technologies, are thoroughly discussed from the electrochemical, electrical, morphological and mechanical perspectives. Based on these preliminary results, strategies to further optimize the electrochemical performances are proposed. Through a comprehensive modeling study, the enhanced electrochemical suitability at high current densities of various complex three…

suorituskykymaterial extrusionpowder bed fusionLithium-ion batteryelektroditlitiumioniakut3D-tulostusmateriaalitvalmistustekniikkacompositeskomposiititsähkökemiaelectrodes
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The ARF GAPs ELMOD1 and ELMOD3 act at the Golgi and Cilia to Regulate Ciliogenesis and Ciliary Protein Traffic

2021

ABSTRACTELMODs are a family of three mammalian paralogs that display GTPase activating protein (GAP) activity towards a uniquely broad array of ADP-ribosylation factor (ARF) family GTPases that includes ARF-like (ARL) proteins. ELMODs are ubiquitously expressed in mammalian tissues, highly conserved across eukaryotes, and ancient in origin, being present in the last eukaryotic common ancestor. We described functions of ELMOD2 in immortalized mouse embryonic fibroblasts (MEFs) in the regulation of cell division, microtubules, ciliogenesis, and mitochondrial fusion. Here, using similar strategies with the paralogs ELMOD1 and ELMOD3, we identify novel functions and locations of these cell regu…

symbols.namesakeCell divisionGTPase-activating proteinmitochondrial fusionMicrotubuleCiliogenesisCiliumsymbolsGTPaseBiologyGolgi apparatusCell biology
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Itô-Stratonovitch Formula for the Wave Equation on a Torus

2010

We give an Ito-Stratonovitch formula for the wave equation on a torus, where we have no stochastic process associated to this partial differential equation. This gives a generalization of the classical Ito-Stratonovitch equation for diffusion in semi-group theory established by ourself in [18], [20].

symbols.namesakePartial differential equationDiffusion equationMathematics::ProbabilityDifferential equationMathematical analysisFirst-order partial differential equationsymbolsFokker–Planck equationFisher's equationWave equationd'Alembert's formulaMathematics
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Random Walk and Diffusion

2014

The concept of random walk as introduced by Einstein is introduced. It is shown that a random walk on a lattice can be descrbed by a difference equation, which becomes a partial differential equation (diffusion equation) in the continuum limit. The equation is solved with the help of Fourier and Laplace transformations.

symbols.namesakePartial differential equationHeterogeneous random walk in one dimensionDiffusion equationFourier transformLaplace transformDifferential equationMathematical analysissymbolsEinsteinRandom walkMathematics
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Gear classification and fault detection using a diffusion map framework

2013

system health monitoringdiffusion mapfault detectionclustering
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Adaptive framework for network traffic classification using dimensionality reduction and clustering

2012

Information security has become a very important topic especially during the last years. Web services are becoming more complex and dynamic. This offers new possibilities for attackers to exploit vulnerabilities by inputting malicious queries or code. However, these attack attempts are often recorded in server logs. Analyzing these logs could be a way to detect intrusions either periodically or in real time. We propose a framework that preprocesses and analyzes these log files. HTTP queries are transformed to numerical matrices using n-gram analysis. The dimensionality of these matrices is reduced using principal component analysis and diffusion map methodology. Abnormal log lines can then …

ta113Computer scienceNetwork securitybusiness.industryDimensionality reductionintrusion detectionk-meansdiffusion mapServer logcomputer.software_genreanomaly detectionTraffic classificationkoneoppiminenWeb log analysis softwareAnomaly detectionData miningWeb servicetiedonlouhintaCluster analysisbusinesscomputern-grams
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Gear classification and fault detection using a diffusion map framework

2015

This article proposes a system health monitoring approach that detects abnormal behavior of machines. Diffusion map is used to reduce the dimensionality of training data, which facilitates the classification of newly arriving measurements. The new measurements are handled with Nyström extension. The method is trained and tested with real gear monitoring data from several windmill parks. A machine health index is proposed, showing that data recordings can be classified as working or failing using dimensionality reduction and warning levels in the low dimensional space. The proposed approach can be used with any system that produces high-dimensional measurement data. peerReviewed

ta113Diffusion (acoustics)Training setta214Computer scienceDimensionality reductiondiffusion mapExtension (predicate logic)computer.software_genreFault detection and isolationfault detectionsystem health monitoringArtificial IntelligenceSignal ProcessingComputer Vision and Pattern RecognitionData miningCluster analysiscomputerSoftwareCurse of dimensionalityclustering
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A posteriori error estimates for time-dependent reaction-diffusion problems based on the Payne-Weinberger inequality

2015

We consider evolutionary reaction-diffusion problem with mixed Dirichlet--Robin boundary conditions. For this class of problems, we derive two-sided estimates of the distance between any function in the admissible energy space and exact solution of the problem. The estimates (majorants and minorants) are explicitly computable and do not contain unknown functions or constants. Moreover, it is proved that the estimates are equivalent to the energy norm of the deviation from the exact solution.

ta113InequalityApplied Mathematicsmedia_common.quotation_subjectta111Numerical Analysis (math.NA)Parabolic partial differential equationExact solutions in general relativityevolutionary reaction-diffusion problemsNorm (mathematics)FOS: MathematicsDiscrete Mathematics and CombinatoricsA priori and a posterioriApplied mathematicsBoundary value problemMathematics - Numerical AnalysisDirichlet–Robin boundary conditionsAnalysisMathematicsmedia_common
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