搜索结果: 1-15 共查到“知识库 理学 sun”相关记录51条 . 查询时间(0.292 秒)
Evolution and Functional Divergence of SUN Genes in Plants
棉花 SUN家族蛋白 GbSUN5敲除
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2024/4/16
系统鉴定和分析了棉花SUN家族蛋白，通过病毒诱导的敲除和CRISPR/cas9介导的GbSUN5敲除，发现尽管花粉活力仍然正常，但是其败育率较高。本研究结果表明：SUN3和SUN5在生物学功能上存在差异，在生殖发育中发挥重要作用。
CORRECTION OF THE TEMPERATURE EFFECT IN 1020 NM BAND OF SUN-SKY RADIOMETER
Temperature Correction, 1020 nm Band, Radiometer
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2018/5/14
Aerosol is an important part of the earth-atmosphere system. It can directly and indirectly influence solar radiation and then affect the energy balance of earth-atmosphere system. AERONET, as the lar...
Correction of sun glint effect on MIVIS data of the Sicily campaign in July 2000
MIVIS water leaving radiance sun glint path radiance probability density function
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2015/9/7
To assess the suspended and dissolved matter in water in the visible and near infrared spectral regions it is necessary to estimate with adequate accuracy the water leaving radiance. Consequently radi...
Efficient modeling of sun/shade canopy radiation dynamics explicitly accounting for scattering
sun/shade canopy radiation dynamics explicitly accounting scattering
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2014/12/10
The separation of global radiation (Rg) into its direct (Rb) and diffuse constituents (Rg) is important when modeling plant photosynthesis because a high Rd:Rg ratio has been shown to enhance Gross Pr...
On using the beaming effect to measure spin-orbit alignment in stellar binaries with Sun-like components
measure spin-orbit alignment stellar binaries Sun-like components
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2011/10/13
The beaming effect (aka Doppler boosting) induces a variation in the observed flux of a luminous object, following its observed radial velocity variation. We describe a photometric signal induced by t...
Constraints on dark matter models from a Fermi LAT search for high-energy cosmic-ray electrons from the Sun
Cosmic Rays Electrons Fermi Sun
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2011/10/13
During its first year of data taking, the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope has collected a large sample of high-energy cosmic-ray electrons and positrons (CREs). ...
Enhanced Sensitivity to Dark Matter Self-annihilations in the Sun using Neutrino Spectral Information
Dark Matter, Solar WIMPs, WIMP-nucleon scattering cross section, Neutrino Astronomy
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2011/10/10
Self-annihilating dark matter gravitationally captured by the Sun could yield observable neutrino signals at current and next generation neutrino detectors. By exploiting such signals, neutrino detect...
Mass Loss, Destruction and Detection of Sun-grazing and -impacting Cometary Nuclei
comet sun impact sun-grazing radiation collisions
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2011/9/30
Incoming sun-grazing comets almost never re-emerge, but no final destruction event has ever been observed, nor sun-impactor destruction theory developed. We seek analytic models of comet nucleus destr...
Measuring the Earth-Sun distance during a lunar eclipse
Measuring Earth-Sun distance lunar eclipse
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2011/9/28
The classical method for measure the Earth-Sun distance is due to Aristarchus and it is based upon the measure of the angle Moon-Earth-Sun when the Moon is exactly in quadrature. Such an angle is only...
The brightness of the magnetic field in the quiet Sun
the magnetic field the quiet Sun
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2011/1/10
Context: In addition to the `facular' brightening of active regions, the quiet Sun also contains a small scale magnetic field with associated brightenings in continuum radiation. Aims: To measure the ...
HD 46375: seismic and spectropolarimetric analysis of a young Sun hosting a Saturn-like planet
seismic spectropolarimetric analysis Saturn-like planet
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2010/11/15
Context. HD 46375 is known to host a Saturn-like exoplanet orbiting at 0.04 AU from its host star. Stellar light reflected by the planet was tentatively identified in the 34-day CoRoT run acquired in ...
On the stability of the secular evolution of the planar Sun-Jupiter-Saturn-Uranus system
Mathematical Physics (math-ph) Chaotic Dynamics (nlin.CD)
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2010/11/10
We investigate the long time stability of the Sun--Jupiter--Saturn--Uranus system by considering the planar, secular model. Our method may be considered as an extension of Lagrange's theory for the se...
Detection of Supergranulation Alignment in Polar Regions of the Sun by Helioseismology
convection — Sun helioseismology
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2010/11/10
We report on a new phenomenon of ‘alignment’ of supergranulation cells in the polar regions of the Sun. Recent high-resolution datasets obtained by the Solar Optical Telescope (SOT) onboard the Hinode...
Persistent Magnetic Wreaths in a Rapidly Rotating Sun
convection – MHD – stars:interiors – stars rotation – stars magnetic fields – Sun:interior
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2010/11/15
When our Sun was young it rotated much more rapidly than now. Observations of young, rapidly rotating stars indicate that many possess substantial magnetic activity and strong axisymmetric magnetic fi...
Impact of MHD Turbulence on Thermal Wind Balance in the Sun
instabilities—rotation—sun magnetohydrodynamics— stars sun
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2010/11/15
The possible role of magneto-rotational instability (MRI) and its driven MHD turbulence in
the solar interior is studied on the basis of the linear and nonlinear theories coupling with
physical para...