Search results for "HB"

showing 10 items of 1066 documents

Final results of Borexino Phase-I on low-energy solar neutrino spectroscopy

2014

Borexino has been running since May 2007 at the Laboratori Nazionali del Gran Sasso laboratory in Italy with the primary goal of detecting solar neutrinos. The detector, a large, unsegmented liquid scintillator calorimeter characterized by unprecedented low levels of intrinsic radioactivity, is optimized for the study of the lower energy part of the spectrum. During Phase-I (2007–2010), Borexino first detected and then precisely measured the flux of the Be 7 solar neutrinos, ruled out any significant day-night asymmetry of their interaction rate, made the first direct observation of the pep neutrinos, and set the tightest upper limit on the flux of solar neutrinos produced in the CNO cycle …

Nuclear and High Energy PhysicsCNO cyclePhysics - Instrumentation and DetectorsPhysics and Astronomy (miscellaneous)Physics::Instrumentation and DetectorsSolar neutrinoFOS: Physical sciences7. Clean energy01 natural sciencesParticle identificationHigh Energy Physics - ExperimentPACS numbers: 13.35.Hb 14.60.St 26.65.+t 95.55.Vj 29.40.McNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciences010306 general physicsNeutrino oscillationBorexinoComputingMilieux_MISCELLANEOUSNuclear and High Energy PhysicPhysics[PHYS]Physics [physics]010308 nuclear & particles physicsFísicaInstrumentation and Detectors (physics.ins-det)Solar neutrino problemNeutrino detectorHigh Energy Physics::ExperimentNeutrino[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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Hermite interpolation: The barycentric approach

1991

The barycentric formulas for polynomial and rational Hermite interpolation are derived; an efficient algorithm for the computation of these interpolants is developed. Some new interpolation principles based on rational interpolation are discussed.

Numerical AnalysisMathematical analysisComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONMathematicsofComputing_NUMERICALANALYSISTrilinear interpolationStairstep interpolationBirkhoff interpolationComputer Science ApplicationsTheoretical Computer SciencePolynomial interpolationComputational MathematicsComputational Theory and MathematicsNearest-neighbor interpolationHermite interpolationComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATIONApplied mathematicsSpline interpolationSoftwareComputingMethodologies_COMPUTERGRAPHICSMathematicsInterpolationComputing
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Reconstructions that combine interpolation with least squares fitting

2015

We develop a reconstruction that combines interpolation and least squares fitting for point values in the context of multiresolution a la Harten. We study the smoothness properties of the reconstruction as well as its approximation order. We analyze how different adaptive techniques (ENO, SR and WENO) can be used within this reconstruction. We present some numerical examples where we compare the results obtained with the classical interpolation and the interpolation combined with least-squares approximation. We develop a reconstruction that combines interpolation and least squares fitting.We study the smoothness properties of the reconstruction and its approximation order.We present some nu…

Numerical AnalysisMathematical optimizationApplied MathematicsTrilinear interpolationBilinear interpolationStairstep interpolationLinear interpolationMultivariate interpolationComputational MathematicsNearest-neighbor interpolationApplied mathematicsSpline interpolationMathematicsInterpolationApplied Numerical Mathematics
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Discrete multiresolution based on hermite interpolation: computing derivatives

2004

Abstract Harten’s framework for multiresolution representation of data has been extended by Warming and Beam in [SIAM J. Sci. Comp. 22 (2000) 1269] to include Hermite interpolation. It needs the point-values of the derivative, which are usually unavailable, so they have to be approximated. In this work we show that the way in which the derivatives are approximated is crucial for the success of the method, and we present a new way to compute them that makes the scheme adequate for non-smooth data.

Numerical AnalysisMathematical optimizationHermite splineApplied MathematicsMonotone cubic interpolationBirkhoff interpolationMultivariate interpolationCubic Hermite splineNearest-neighbor interpolationHermite interpolationModeling and SimulationApplied mathematicsMathematicsInterpolationCommunications in Nonlinear Science and Numerical Simulation
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High Resolution Dispersion Modeling near Tunnel Exits

1996

This contribution is concerned with a critical problem which usually occurs at motortraffic tunnels within towns. All exhaust gases accumulating along the entire tunnel distance readily leave the tunnel exits in a very concentrated form. Since modern urban traffic management affords more and more tunnel constructions within highly built-up areas, a reliable calculation of the resulting immission distribution in the neighbourhood of tunnel exits is of great importance.

Numerical dispersionHigh resolutionGeometryAtmospheric dispersion modelingNeighbourhood (mathematics)Distribution (differential geometry)GeologyStreet canyon
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Cultural institutions as agents of urban and community regeneration in the (post-)pandemic city. The case of the «Laboratorio Zen Insieme» in Palermo

2022

Although all cities in the world have been affected by the COVID-19 pandemic, its impacts on the territories, yet to be understood, are unevenly distributed, revealing extremely varied imbalances depending on the places. However, it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities, creating new ones and bringing attention back to those implications between space, planning, public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and g…

Olsen 2018Settore ICAR/21 - UrbanisticaSettore M-GGR/01 - GeografiaSacco and Blessi 2009). In the current (post-) pandemic context and through the lens of a southern European perspective the purpose of this article is to critically reflect about the role of culture as possible vehicle of urban and community regeneration. In particular we will focus on the activities of the no profit organization «Laboratorio Zen Insieme» in ZEN2 one of the last large popular and peripheral neighborhoods built in Palermo at the end of 80s in order to explore and understand how cultural practices work as agent of urban and social transformation capable of addressing emerging issues especially in the pandemic scenario we are experiencing. Thecasestudy has been conducted through analysis of documents participative observations (Honer and Hitzler 2015) and qualitative in-depth interviews with key actors involved in the conception organization and management of the activities carried out by Laboratorio Zen Insieme with representatives of local institutions and non-formal conversations with participants of the workshops heldin the neighborhood. The experience we narrate finds that cultural practices have re-conceptualized their design and functions as strategies of urban and community regeneration and at the same time have contributed to answer to emergent issues in developing proximity and local based strategies facing up to problems inherent civil rights educationalpoverty socio-spatial justice and have changed the image and identity of urban places they inhabit.In this sense the research provides a framework for development of strategies and legitimization for cultural practices and a point of discussionabouttheirrolein urban development.Although all cities in the world have been affected by the COVID-19 pandemic its impacts on the territories yet to be understood are unevenly distributed revealing extremely varied imbalances depending on the places. However it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities creating new ones and bringing attention back to those implications between space planning public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and groups a response to the new social and individual needs has been offered by cultural institutions that play a role of territorial agency often independently or in the absence of political institutions. Far from the idea of entertainment and divertissement it is in fact increasingly clear how the practices of cultural innovation experimenting with various forms of action and participation can in some cases play a fundamental role in the processes of social cohesion and community building representing an antidote to the worsening of the phenomena of marginalization and socio-spatial inequalities within cities and territories (Colantonio and Dixon 2011
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Comparison of E-Trust and Trust Concepts in Online and Offline Dimensions

2017

Abstract In everyday lives, we more and more use different technology products to make our lives easier and faster. We often do not realise that we are switching our lifestyles to the online platform - we do everything mostly online - meet and communicate with others, watch videos and listen to favourite songs, choose and buy different things. The main question is - can we trust everything that we see on the screen? Is the explanation of “trust” the same in real life and in online sphere? Authors of the paper compare the concept of “trust” in offline trade market with that in online trading. The following methods were used - literature study and analysis, consumer survey and statistical ana…

Online and offlineonline tradingEngineeringHF5001-6182Process (engineering)media_common.quotation_subjecte-trustLoyalty business modelAge groups0502 economics and businessLoyaltycustomer behaviourIn real lifeStatistical analysisBusinessHB71-74media_commonbusiness.industry05 social sciencessatisfactionAdvertisingOnline tradingloyaltyCustomer behaviourEconomics as a science050211 marketingbusiness050203 business & managementEconomics and Business
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Revealing Employer’s Name in Social Networks

2017

Abstract The research investigates the question of the importance of mentioning the name of the employer in online and offline social networks. The exchange of information is an important part of social networks and social capital theory. Companies can use the networks of their employees to recruit new hires and to check habits and interests of likely new employees. To do that, the employee has to mention the name of the company in these social networks. The paper compares different real social networks used by family and friends and private and business social network sites (SNSs) as online social networks and compares the differences between men and women. The empirical research has been …

Online and offlinesocial networksHF5001-6182050801 communication & media studiesSocial networks0508 media and communicationsEmpirical researchhuman resource management0502 economics and businessBusinessSociologyHB71-74Social computingSocial networkDescriptive statisticsbusiness.industry05 social sciencesPublic relationsvirtual profilesEconomics as a scienceHuman resource managementSurvey data collectionsocial network sitesbusiness050203 business & managementSocial capitalEconomics and Business
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Phase recovery by using optical fiber dispersion

2014

We propose a simple and fast procedure to retrieve the phase profile of arbitrary light pulses. It combines a first experimental stage, followed by a one-step numerical stage. To this end, it is necessary to perform a Fresnel transform, which is obtained just by propagating the light pulses through an optical fiber. We experimentally test this proposal recovering the phase profile in the light pulses provided by a passively mode-locked laser. The proposal is then compared with a temporal variation of the Gerchberg–Saxton recursive algorithm, which is specially modified for this purpose. Fil: Cuadrado Laborde, Christian Ariel. Universidad de Valencia; España. Consejo Nacional de Investigacio…

Optical fiberOptical fiberMaterials sciencebusiness.industryCiencias FísicasPhase (waves)Fresnel transformLaserPhase recoveryAtomic and Molecular Physics and Opticslaw.inventionOpticsMode-lockingFiber Bragg gratinglawGerchberg-SaxtonDispersion (optics)Stage (hydrology)businessPhase retrievalCIENCIAS NATURALES Y EXACTASÓpticaOptics Letters
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A new methodology for the optimal design of crash-boxes

2014

Optimization crashbox FEM Sub-problem CADSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industriale
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