搜索结果: 1-15 共查到“理学 disturbances”相关记录50条 . 查询时间(0.015 秒)
Even small disturbances can trigger catastrophic hurricanes, researchers find（图）
small disturbances trigge catastrophic hurricanes researchers find
2020/5/29
In a developing hurricane, satellite images show thick white clouds clumping together, arms spinning around a central eye as it heads for the coast.Florida State University researchers have found...
中山大学岭南学院高级计量经济学课件（I）CH8 Autocorrelated Disturbances
中山大学岭南学院 高级计量经济学 课件（I） CH8 Autocorrelated Disturbances
2017/6/14
中山大学岭南学院高级计量经济学课件（I）CH8 Autocorrelated Disturbances。
中山大学岭南学院高级计量经济学课件（I）CH7 Nonspherical Disturbances (Heterocedasticity)
中山大学岭南学院 高级计量经济学 课件（I） CH7 Nonspherical Disturbances (Heterocedasticity)
2017/6/14
中山大学岭南学院高级计量经济学课件（I）CH7 Nonspherical Disturbances (Heterocedasticity)。
Low-latitude ionospheric disturbances associated with earthquakes
Ionosphre equatorial anomaly low latitudes earthquakes
2015/9/28
Topside electron density measured on satellite board was analyzed. It was shown that before the two considered earthquakes with their epicenters located at low and equatorial latitudes the stable modi...
Disturbances in LF radio-signals as seismic precursors
radio signals seismicity precursors
2015/9/28
Low Frequency (LF) radio signals lie in the band 30-300 kHz. Monitoring equipment able to measure the electric strength of such signals, at field sites with very low noise levels, were designed and as...
ON TWO-STEP ESTIMATION OF A SPATIAL AUTOREGRESSIVE MODEL WITH AUTOREGRESSIVE DISTURBANCES AND ENDOGENOUS REGRESSORS
Cliff–Ord spatial model Generalized method of moments estimation Limited information estimation
2015/9/24
In this paper, we consider a spatial-autoregressive model with autoregressive disturbances,
where we allow for endogenous regressors in addition to a spatial lag of the dependent variable.
We sugges...
Climatology of ionosphericF-region disturbances
ionosphere F2-layer critical frequency ionospheric disturbances
2015/9/14
After more than 60 years of research, ionospheric disturbances are today a most challenging topic of upper atmospheric
physics. Although the understanding of the thermosphere-ionosphere system has in...
Ionospheric disturbances generated by different natural processes and by human activity in Earth plasma environment
ionosphere Earth plasma environment
2015/9/14
The magnetosphere-ionosphere-thermosphere subsystem is strongly coupled via the electric field, particle precipitation, heat flows and small scale interaction. Satellites in situ measurements and grou...
Slip weakening, strain and short-termpreseismic disturbances
slip weakening accelerated creep short-term earthquake precursor strain spatialtemporalscale mosaic pattern teleseismic effects
2015/9/14
The problem of short-term earthquake precursors is discussed. In contrast to the increasing number of reports on short-lived precursors of various types, direct strain measurements cannot detect clear...
A dynamic system to forecast ionospheric storm disturbances based on solar wind conditions
inospheric forecasting ionospheric modelling ionospheric storms
2015/9/10
For the reliable performance of technologically advanced radio communications systems under geomagnetically
disturbed conditions, the forecast and modelling of the ionospheric response during storms ...
Heating of the auroral ionosphere by traveling ionospheric disturbances initiated by atmospheric gravity waves
ionospheric dynamics plasma physics auroral phenomena
2015/8/28
In the presence of perturbations of the thermospheric auroral region produced by traveling ionospheric disturbances during the propagation of atmospheric gravity waves, an analytical expression of the...
Anomaly disturbances of the magnetic fields before the strong earthquake in Japan on March 11, 2011
Magnetic field ULF magnetic field 2011 Japan earthquake
2015/8/24
One of the strongest earthquakes, with magnitude M 8.9, occurred at the sea bottom near to the east coast of Japan on March 11, 2011. This study is devoted to the investigation of anomaly disturbances...
Large ionospheric disturbances during a minor geomagnetic storm on June 23,2000
Ionospheric storm Minor geomagnetic disturbance Energy transfer
2015/8/24
We investigate the variations in the ionosphere during a small geomagnetic storm on June 23, 2000, using the total electron content of the Jet Propulsion Laboratory global positioning system, and the ...
Parameter set estimation of systems with uncertain nonparametric dynamics and disturbances
Parameter set the parameter estimation system dynamics parameter estimation
2015/8/12
A method is presented for parameter set estimation of open-loop stable systems with uncertain parameters and quasi-stationary disturbances. The system model is assumed to contain both parametric and n...
Description of ionospheric disturbances observed by Vertical Ionospheric Sounding at 3 MHz
Fading fluctuation Ionospheric irregularities Multipath fading Ionograms
2015/8/17
High Frequency radio waves reflected by the ionosphere can provide a relevant amount of information within the composite received signal. The ionosphere is indeed a frequency dispersive, bi-refractive...