搜索结果: 1-15 共查到“理学 get quiet”相关记录18条 . 查询时间(0.072 秒)
When dormant volcanoes are about to erupt, they show some predictive characteristics—seismic activity beneath the volcano starts to increase, gas escapes through the vent, or the surrounding ground st...
Forecasting of ionospheric characteristics during quiet and disturbed conditions
Forecasting procedure quiet and disturbed conditions
2015/9/25
An autocovariance forecasting procedure for single location ionospheric characteristics is presented. Its accuracy is illustrated as a function of the amount of time extrapolation for selected Europea...
Validation of a method for ionospheric electron density reconstruction by means of vertical incidence data during quiet and storm periods
electron density model vertical incidence ionograms ionospheric data ingestion
2015/9/10
A preliminary validation of the technique developed using the NeQuick ionospheric model and the 玡ffective ionization
parameter?Az, based on vertical total electron content data ingestion, was carried...
The effect of noise on marine life is one of the big unknowns of current marine science. Considerable evidence exists that the human contribution to ocean noise has increased during the past few decad...
Stimulated coherent spontaneous emission in an FEL with 'quiet' bunches
shot noise reduction controlled microbunching instability laser heater
2012/5/31
For a planar FEL configuration we study stimulated coherent spontaneous emission driven by a gradient of the bunch current in the presence of different levels of noise in bunches. To perform a vast am...
The VLA Survey of the Chandra Deep Field South. V. Evolution and Luminosity Functions of sub-mJy radio sources and the issue of radio emission in radio-quiet AGN
Chandra Deep Field Luminosity Functions radio sources radio emission
2011/10/9
We present the evolutionary properties and luminosity functions of the radio sources belonging to the Chandra Deep Field South VLA survey, which reaches a flux density limit at 1.4 GHz of 43 microJy a...
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 ...
Synchrotron radio emission in radio-quiet AGNs
Synchrotron radio emission radio-quiet AGNs
2011/1/11
The basic mechanism responsible for radio emission in radio-loud active galactic nuclei (AGNs) is assumed to be synchrotron radiation. We suggest here that radio emission in radio-quiet objects is als...
Five-minutes oscillations is one of the basic properties of solar convection. Observations show mixture of a large number of acoustic wave fronts propagating from their sources. We investigate the pr...
Vector Magnetic Fields and Current Helicities in Coronal Holes and Quiet Regions
Sun activity — Sun magnetic fields — Sun photosphere
2010/11/10
In the solar photosphere, many properties of coronal holes (CHs) are notknown, especially vector magnetic fields. Using observations from Hinode, we investigate vector magnetic fields, current densiti...
The transition from quasar radio-loud to radio-quiet state in the framework of the black hole scalability hypothesis
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
There are several lines of evidence that active galactic nuclei (AGN) can be regarded as scaled-up X-ray binaries (XRB). The timescales of the evolutionary phenomena in these two classes are proportio...
On the Iwasawa-Taniguchi effect of radio-quiet AGN。
The unusually long quiet period of the Sun’s present activity may be due to the motion of “sluggish” jet streams beneath the solar surface, according to scientists at the National Solar Observatory (N...
High z Radio-Loud and Radio-Quiet QSO Environments
High z Radio-Loud Radio-Quiet QSO Environments
2009/6/12
High z Radio-Loud and Radio-Quiet QSO Environments。
Radio quiet pulsar candidates among unidentified gamma-ray sources
gamma-ray sources pulsar
2009/6/5
Radio quiet pulsar candidates among unidentified gamma-ray sources。