0000000000262994

AUTHOR

J. Xu

showing 11 related works from this author

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]
researchProduct

Feasibility and physics potential of detecting $^8$B solar neutrinos at JUNO

2021

The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent location for 8B solar neutrino measurements, such as its low-energy threshold, high energy resolution compared with water Cherenkov detectors, and much larger target mass compared with previous liquid scintillator detectors. In this paper, we present a comprehensive assessment of JUNO's potential for detecting 8B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2 MeV threshold for the recoil electron energy is found to be achievable, assuming that the intrinsic radioactive …

Physics - Instrumentation and Detectorsneutrino: solarPhysics::Instrumentation and DetectorsSolar neutrinoscintillation counter: liquidhigh [energy resolution]01 natural sciences7. Clean energymass [target]High Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)JUNO; Neutrino oscillation; Solar neutrinoelastic scattering [neutrino electron]KamLAND[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]flavor [transformation]neutrino oscillationInstrumentationJiangmen Underground Neutrino ObservatoryPhysicsElastic scatteringJUNOliquid [scintillation counter]neutrino oscillation solar neutrino JUNOSettore FIS/01 - Fisica Sperimentaleoscillation [neutrino]Instrumentation and Detectors (physics.ins-det)Monte Carlo [numerical calculations]neutrino electron: elastic scatteringtensionmass difference [neutrino]ddc:nuclear reactor [antineutrino]observatoryHigh Energy Physics - PhenomenologyPhysics::Space Physicsneutrino: flavorsolar [neutrino]target: massNeutrinonumerical calculations: Monte CarloNuclear and High Energy PhysicsParticle physicsNeutrino oscillationmatter: solarCherenkov counter: waterneutrino: mass differenceFOS: Physical sciencesSolar neutrinoNOtransformation: flavoruraniumPE2_20103 physical scienceselectron: recoil: energyantineutrino: nuclear reactorsolar [matter]ddc:530ddc:610Sensitivity (control systems)[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsNeutrino oscillationbackground: radioactivityCherenkov radiationAstrophysiquesolar neutrino010308 nuclear & particles physicswater [Cherenkov counter]radioactivity [background]flavor [neutrino]Astronomy and Astrophysicssensitivityneutrino: mixing anglerecoil: energy [electron]energy spectrum [electron]electron: energy spectrumHigh Energy Physics::Experimentsphereneutrino: oscillationenergy resolution: highEnergy (signal processing)mixing angle [neutrino]
researchProduct

Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector

2021

To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detect…

organic compounds: admixtureNuclear and High Energy PhysicsPhysics - Instrumentation and DetectorsLiquid scintillatorscintillation counter: liquidAnalytical chemistryFOS: Physical sciencesmodel: opticalScintillatorWavelength shifterantineutrino: detector01 natural sciencesNOHigh Energy Physics - Experimentwavelength shifterHigh Energy Physics - Experiment (hep-ex)PE2_2Daya BayNeutrino0103 physical sciencesfluorine: admixture[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]ddc:530neutrino oscillation[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsInstrumentationJiangmen Underground Neutrino ObservatoryPhysicsJUNO010308 nuclear & particles physicsSettore FIS/01 - Fisica SperimentaleDetectorLight yield; Liquid scintillator; NeutrinoInstrumentation and Detectors (physics.ins-det)Yield (chemistry)Scintillation counterComposition (visual arts)photon: yieldNeutrinoLight yieldNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
researchProduct

Transport Coefficients for Liquid-Vapor Transition.

2006

[ PHYS.PHYS.PHYS-CHEM-PH ] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
researchProduct

A multi-purpose, multi-rotor drone system for long-range and high-altitude volcanic gas plume measurements

2021

A multi-rotor drone has been adapted for studies of volcanic gas plumes. This adaptation includes improved capacity for high-altitude and long-range, real-time SO2 concentration monitoring, long-range manual control, remotely activated bag sampling and plume speed measurement capability. The drone is capable of acting as a stable platform for various instrument configurations, including multi-component gas analysis system (MultiGAS) instruments for in situ measurements of SO2, H2S, and CO2 concentrations in the gas plume and portable differential optical absorption spectrometer (MobileDOAS) instruments for spectroscopic measurement of total SO2 emission rate, remotely controlled gas samplin…

event.disaster_typeAtmospheric Sciencegeographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesSpectrometerTA715-787Environmental engineeringFluxSampling (statistics)TA170-171010502 geochemistry & geophysics01 natural sciencesDronePlumeVolcanic GasesEarthwork. FoundationsVolcanoRange (aeronautics)Environmental scienceevent0105 earth and related environmental sciencesRemote sensing
researchProduct

Integral relations for mass and heat transport through a liquid-vapour interface; A molecular dynamics study.

2006

[ PHYS.PHYS.PHYS-CHEM-PH ] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
researchProduct

Transport Properties of a Reacting Binary Fluid, from Non-Equilibrium Molecular Dynamics Simulations.

2006

[ PHYS.PHYS.PHYS-CHEM-PH ] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph][PHYS.PHYS.PHYS-CHEM-PH] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
researchProduct

Efficacy and safety of regorafenib for advanced gastrointestinal stromal tumours after failure of imatinib and sunitinib (GRID): an international, mu…

2013

Contains fulltext : 118365.pdf (Publisher’s version ) (Closed access) BACKGROUND: Until now, only imatinib and sunitinib have proven clinical benefit in patients with gastrointestinal stromal tumours (GIST), but almost all metastatic GIST eventually develop resistance to these agents, resulting in fatal disease progression. We aimed to assess efficacy and safety of regorafenib in patients with metastatic or unresectable GIST progressing after failure of at least imatinib and sunitinib. METHODS: We did this phase 3 trial at 57 hospitals in 17 countries. Patients with histologically confirmed, metastatic or unresectable GIST, with failure of at least previous imatinib and sunitinib were rando…

OncologyMaleIndolesPyridinesSettore MED/06 - Oncologia MedicaSU11248MedizinPiperazineslaw.inventionchemistry.chemical_compoundRandomized controlled triallawClinical endpointSunitinibTreatment Failureregorafenib; gastrointestinal stromal tumours; imatinib and sunitinibGastrointestinal Neoplasmseducation.field_of_studyGiSTSunitinibKITAge-related aspects of cancer Quality of hospital and integrated care [ONCOL 2]General MedicineMiddle AgedSurvival RateBenzamidesImatinib MesylateFemaleADJUVANT IMATINIBTYROSINE KINASE INHIBITORColorectal NeoplasmsLife Sciences & Biomedicinemedicine.drugGROWTH-FACTORmedicine.medical_specialtyGastrointestinal Stromal TumorsPopulationMESYLATEAntineoplastic AgentsIMATINIBArticleMECHANISMSMedicine General & InternalDouble-Blind MethodTranslational research [ONCOL 3]General & Internal MedicineRegorafenibInternal medicineMANAGEMENTmedicineHumansPyrroleseducationProtein Kinase InhibitorsAgedScience & TechnologyGASTROINTESTINAL STROMAL TUMOURSimatinib and sunitinibMUTATIONSbusiness.industryPhenylurea CompoundsGIST regorafenib imatinib sunitinib phase III trialSurgeryClinical trialImatinib mesylatePyrimidineschemistryregorafenibbusinessRESISTANCE
researchProduct

Abstracts of presentations on plant protection issues at the fifth international Mango Symposium Abstracts of presentations on plant protection issue…

1997

0106 biological sciencesZucchini yellow mosaic virusBarley stripe mosaic virusbiologyEcology (disciplines)Plant ScienceCoat proteinbiology.organism_classification01 natural sciencesCucumber mosaic virus010602 entomologyInsect ScienceInternational congressBotany010606 plant biology & botanyPhytoparasitica
researchProduct

Assessment of the worldwide burden of critical illness: The Intensive Care Over Nations (ICON) audit

2014

Item does not contain fulltext BACKGROUND: Global epidemiological data regarding outcomes for patients in intensive care units (ICUs) are scarce, but are important in understanding the worldwide burden of critical illness. We, therefore, did an international audit of ICU patients worldwide and assessed variations between hospitals and countries in terms of ICU mortality. METHODS: 730 participating centres in 84 countries prospectively collected data on all adult (>16 years) patients admitted to their ICU between May 8 and May 18, 2012, except those admitted for fewer than 24 h for routine postoperative monitoring. Participation was voluntary. Data were collected daily for a maximum of 28 da…

Pulmonary and Respiratory Medicinemedicine.medical_specialtyCritical Illnesshealth care facilities manpower and servicesPopulationlnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4]Critical care european intensive care icon studyComorbidityintensive care medicineGlobal HealthMOF; sepsis; critically ill[SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tractICON Intensive CareArticleSepsisCohort StudiesOutcome Assessment (Health Care)Intensive careSepsisOutcome Assessment Health CareEpidemiologyHealth careSettore MED/41 - ANESTESIOLOGIAmedicineGlobal healthcritical illness mortalityHumansHospital MortalityeducationIntensive care medicineeducation.field_of_studyMedical Auditbusiness.industryIntensive Caremedicine.diseaseComorbidity3. Good healthIntensive Care UnitsICONbusinessCohort study
researchProduct

Erratum to: Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition) (Autophagy, 12, 1, 1-222, 10.1080/15548627.201…

2016

non presente

Molecular Biology; Cell BiologyCell BiologySettore BIO/06 - Anatomia Comparata E CitologiaMolecular Biology
researchProduct