نتایج جستجو برای: angular power spectrum aps

تعداد نتایج: 760576  

2010
F. Paci A. Gruppuso F. Finelli P. Cabella A. De Rosa N. Mandolesi P. Natoli

We test the asymmetry of the Cosmic Microwave Background anisotropy jointly in temperature and polarization. We study the hemispherical asymmetry, previously found only in the temperature field, with respect to the axis identified by Hansen et al. (2009). To this extent, we make use of the low resolution WMAP 5 year temperature and polarization Nside = 16 maps and the optimal angular power spec...

2011
Ning Xie Albert J.P. Theuwissen Bernhard Büttgen

The micro-Digital Sun Sensor (μDSS) is a sun detector which senses a satellite’s instant attitude by detecting its attitude angle with respect to the sun. It is composed of a solar cell power supply, a RF communication block and an imaging chip, which is called APS+. The APS+ integrates a CMOS Active Pixel Sensor (APS) of 368×368 pixels, a 12 bit Analogue to Digital Converter (ADC), and digital...

2008
Volker Springel Martin White

We have performed a sequence of high resolution hydrodynamic simulations of structure formation in a ΛCDM model to study the thermal and kinetic Sunyaev-Zel’dovich (SZ) effects. Including only adiabatic gas physics, we demonstrate that our simulations for the thermal effect are converged down to sub-arcminute scales. In this model, the angular power spectrum of CMB anisotropies induced by the t...

2011
Ning Xie Albert J.P. Theuwissen Bernhard Büttgen

The micro-Digital Sun Sensor (μDSS) is a sun detector which senses a satellite’s instant attitude by detecting its attitude angle with respect to the sun. It is composed of a solar cell power supply, a RF communication block and an imaging chip, which is called APS+. The APS+ integrates a CMOS Active Pixel Sensor (APS) of 368×368 pixels, a 12 bit Analogue to Digital Converter (ADC), and digital...

1995
Neil Turok Joseph Henry

We compute the angular power spectrum of temperature anisotropies on the microwave sky in the cosmic texture theory, with standard recombination assumed. The spectrum shows`Doppler' peaks analogous to those in scenarios based on primordial adiabatic uctuations such as`standard CDM', but at quite diierent angular scales. There appear to be excellent prospects for using this as a discriminant bet...

2014
K. W. YOON

BICEP1 is a millimeter-wavelength telescope designed specifically to measure the inflationary B-mode polarization of the Cosmic Microwave Background (CMB) at degree angular scales. We present results from an analysis of the data acquired during three seasons of observations at the South Pole (2006 to 2008). This work extends the two-year result published in Chiang et al. (2010), with additional...

1997
E. Gaztañaga

We produce mock angular catalogues from simulations with different initial power spectra to test methods that recover measures of clustering in three dimensions, such as the power spectrum, variance and higher order cumulants. We find that the statistical properties derived from the angular mock catalogues are in good agreement with the intrinsic clustering in the simulations. In particular, we...

2013
Qing WU Xue-Song YANG Yi-Teng ZHANG

Multiple-input multiple-output (MIMO) Rayleigh fading channel with truncated Laplacian azimuth power spectrum (APS) is studied. By using the power correlation matrix of MIMO channel model and the modified Jakes simulator, into which random phases are inserted, the effect of the azimuth spread (AS), angle of departure (AOD) and angle of arrival (AOA) on the spatial correlation coefficient and ch...

Journal: :iranian biomedical journal 0
rakesh kumar sinha amit kumar ray

continuous four hours eeg (electroencephalogram) recordings and its power spectrum analysis using fast fourier transform (fft) in urethane anesthetized male charles foster rats were performed in two groups: open brain injury and p-cpa (para-chlorophenylalanine) pretreated before brain injury, respectively, and compared with the eeg power spectrum of control rats. the eeg power spectrum analysis...

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