0000000000765883

AUTHOR

Feng Tian

0000-0002-9686-2769

showing 3 related works from this author

A physiology-based Earth observation model indicates stagnation in the global gross primary production during recent decades

2020

Abstract Earth observation‐based estimates of global gross primary production (GPP) are essential for understanding the response of the terrestrial biosphere to climatic change and other anthropogenic forcing. In this study, we attempt an ecosystem‐level physiological approach of estimating GPP using an asymptotic light response function (LRF) between GPP and incoming photosynthetically active radiation (PAR) that better represents the response observed at high spatiotemporal resolutions than the conventional light use efficiency approach. Modelled GPP is thereafter constrained with meteorological and hydrological variables. The variability in field‐observed GPP, net primary productivity an…

0106 biological sciencesChinaEarth observation010504 meteorology & atmospheric sciencesEarth PlanetClimate ChangeIndiaClimate changeForcing (mathematics)Atmospheric sciences010603 evolutionary biology01 natural sciencesGIMMSEnvironmental ChemistryPrimary Research Articlelight use efficiencySouthern HemisphereEcosystemEarth system0105 earth and related environmental sciencesGeneral Environmental ScienceGlobal and Planetary ChangephotosynthesisEcologyBiospherePrimary productionTropicsland‐atmosphere interactions15. Life on landPrimary Research Articlesclimate change13. Climate actionPhotosynthetically active radiationEnvironmental scienceland-atmosphere interactionsvegetation productivity
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A Strategy for Origins of Life Research

2015

Contents 1. Introduction 1.1. A workshop and this document 1.2. Framing origins of life science 1.2.1. What do we mean by the origins of life (OoL)? 1.2.2. Defining life 1.2.3. How should we characterize approaches to OoL science? 1.2.4. One path to life or many? 2. A Strategy for Origins of Life Research 2.1. Outcomes—key questions and investigations 2.1.1. Domain 1: Theory 2.1.2. Domain 2: Practice 2.1.3. Domain 3: Process 2.1.4. Domain 4: Future studies 2.2. EON Roadmap 2.3. Relationship to NASA Astrobiology Roadmap and Strategy documents and the European AstRoMap  Appendix I  Appendix II  Supplementary Materials  References

Future studiesSpace and Planetary SciencePhysical phenomenaNatural Science DisciplineEngineering ethicsInterdisciplinary communicationNews & ViewsSpace ScienceBiologyAgricultural and Biological Sciences (miscellaneous)
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Observation of an Excited $B^{\pm}_c$ Meson State with the ATLAS Detector

2014

A search for excited states of the B±c meson is performed using 4.9 fb-1 of 7 TeV and 19.2 fb-1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B±c→J/ψπ±. The state appears in the m(Bc±π+π-)-m(Bc±)-2m(π±) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842±4±5 MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B±c meson, B±c(2S).

B-C meson; spectroscopy; equationEquationБольшой адронный коллайдер550Atlas detectorlarge hadron colliderGeneral Physics and Astronomyhadronic decay [excited state]7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnucleareSubatomär fysikHigh Energy Physics - Experiment (hep-ex)B/c* --> B/c+ pi+ pi-Subatomic Physicsexcited stateddc:550EQUATION[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]scattering [p p]ATLAS Detector; Meson StateB mesonGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)SpectroscopyQCPhysics8000 GeV-cms [7000]Large Hadron ColliderSPECTROSCOPYATLAS experimentSettore FIS/01 - Fisica SperimentaleATLASB-C MESON:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]B/c* --> B/c+ pi+ pi-medicine.anatomical_structureCERN LHC CollExcited statePhysical Sciences7000: 8000 GeV-cmsLHCParticle Physics - ExperimentB-C MesonParticle physicsp p: scatteringMeson530 PhysicsCiências Naturais::Ciências FísicasAstrophysics::High Energy Astrophysical Phenomena:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesmass [excited state]столкновение частиц530hadronic decay [B/c+]Nuclear physicsPhysics and Astronomy (all)(J/psi(3100) pi+) [mass spectrum]B/c+ --> J/psi(3100) pi+Atlas (anatomy)TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical sciencesmedicineFysikHigh Energy Physics010306 general physicsB/c+ --> J/psi(3100) pi+Ciencias ExactasScience & TechnologyATLAS detector010308 nuclear & particles physicsHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]FísicaState (functional analysis)B/c+: hadronic decaymass differencemass spectrum: (J/psi(3100) pi+)B-C MESON; SPECTROSCOPY; EQUATIONB/c+excited state: massexcited state: hadronic decayExperimental High Energy PhysicsмезоныHigh Energy Physics::Experimentproton-proton collisionsATLAS детекторexperimental results
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