... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

The wave complex KEM-3 is designed to measure the parameters of electromagnetic waves in the VLF and ULF ranges. ... The electric antenna is a 1.6 m long dipole made up by two spherical carbon EDS detectors each with a preamplifier. ... The same detector is also used for the VLF device. ... 1. component Ex: 0.1 Hz - 400 kHz; 5*10E(-8)HzE(-1/2) (2 kHz). 2. component Bx: 1.0 kHz - 50 kHz; 10E(-5) nT*HzE(-1/2) (2 kHz). 3. components Bx,y,z: 1.0 Hz - 2 kHz; 3*10E(-5) nT*HzE(-1/2) (100 Hz). ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

... In this first example, we allow an object to fall onto a small radar unit . The resulting Time-Frequency distribution is shown as a contour plot in Fig. 8 (a). Figure: FIGURE GOES SOMEWHERE IN THIS GENERAL VICINITY . ... Its density plot appears as an image in Fig. ... The response has a very high peak, as evidenced from Fig. ...

... Polar Cap Potential . ... The solar wind propagation delay time calculation used here is conceptually similar to the T(IMF) calculation in Kelly, et al. ... The older continuous data are from key parameter data files. ... Note: Very high values of Solar Wind Speed, Solar Wind Pressure, IMF Magnitude and Bz, and Polar Cap Potential are likely indications that WIND has reentered the Earth's magnetosphere; such data is not indicative of solar wind conditions or impending severe geomagnetic disruption. ...

... Research . ... Geophysical Institute of Czech Academy of Science, Prague, Czech . ... plasma analysator . ... Space Research Institute,Berlin, . ... Space Research Center, . Polish Academy of Sciences,Warsaw, . ... particles analyser . measurement of particles 0.05 - 1.0 KeV for 0.1 sec . Space Research Institute,Sofia,Bulgaria . ... Prague University, . Research Institute of Nuclear Physics,Moscow State University;Russia . ...

. Search this album . Gallery . :: The First 100 Years . :: Workshops and computer labs . :: Richard Woolley and Jim Banham inspecting optтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Richard Woolley and Jim Banham inspecting optical and mechanical components, optical munitions factory, 1944 . File name: OpticalMunita.jpg . Dimensions: 800 x 601 px . Page: 1 2 3 4 5 6 7 8 9 10 24 25 . Powered by Gallery 3.0.9 (Chartres) . Login

... The fitting procedure will only converge to a unique solution if the components are linearly independent. ... The task calculates for each pair of component images and fails with an error if any is greater than 0.99. ... Hence components may be linearly independent in masked pixels yet still fail the test within the task. ... Finally, since the Poisson image values are necessarily all , negative values are not allowed in the model components. ...

... Classes . Files . ... Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# 00027 //# $Id: ComponentType.h 20299 2008-04-03 05:56:44Z gervandiepen $ 00028 00029 #ifndef COMPONENTS _COMPONENTTYPE_H 00030 #define COMPONENTS _COMPONENTTYPE_H 00031 00032 #include casa/aips.h 00033 namespace casac { 00034 class componentlist; 00035 }; 00036 namespace casa { //# NAMESPACE CASA - BEGIN 00037 00038 class String ; 00039 ...

... Among the objectives of Princ