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Now showing items 1531-1540 of 2111
Applications of statistical physics to economics : distributions of wealth and correlations of financial data
(Trinity College (Dublin, Ireland). School of Physics, 2009)
Over the last decade the study of economic and financial problems by the physics community has
become very popular. Econophysics describes the application of tools from statistical physics
to the study of problems in ...
Characterising Complexity in Solar Magnetogram Data using a Wavelet-based Segmentation Method
(2010)
The multifractal nature of solar photospheric magnetic structures are studied using the 2D wavelet transform modulus maxima (WTMM) method. This relies on computing partition functions from the wavelet transform skeleton ...
M?_ssbauer spectrometry of A2FeMoO6 (A =Ca, Sr, Ba): Search for antiphase domains
(American Physical Society, 2001)
M?_ssbauer spectrometry was carried out in the range of temperature from 4 K to well above the Curie temperature on polycrystalline ceramics of A2FeMoO6 (A=Ca,Sr,Ba). A secondary component in all the paramagnetic or ...
The HST quasar absorption line key project. 4: HST faint-object spectrograph and ground-based observations of the unusual low-redshift broad absorption-line quasi-stellar object PG 0043+039
(American Astronomical Society, 1994)
Hubble Space Telescope Faint Object Spectrograph (HST FOS) observations have shown that the spectrum of the low-redshift (zem approximately equal to 0.384) QSO PG 0043+039 exhibits weak broad absorption lines (BALs). The ...
Unveiling the dynamic capacitive storage mechanism of Co3O4 @NiCo2O4 hybrid nanoelectrodes for supercapacitor applications
(2014)
We report a simple and cost-effective approach to the synthesis of hierarchical mesporous Co3O4@NiCo2O4 nanoforests on Ni foam for supercapacitor (SC) electrode applications by a coupled one-step solution and annealing ...
Investigating the driving mechanisms of coronal mass ejections
(ESO, 2010)
Aims. The objective of this study was to examine the kinematics of coronal mass ejections (CMEs) using EUV and coronagraph images, and to make a quantitative comparison with a number of theoretical models. One particular ...
Direct measurement of a high-speed (>100Gbit/s) OTDM data signal utilising two-photon absorption in a semiconductor microcavity
(2005)
The future development of high-speed optical data channels, operating at individual data rates in excess of 100Gbit/s, will require a sensitive and ultra-fast method for pulse measurement [1]. Current high-speed signals ...
STM study of the (001) and (110) surfaces of magnetite
(Trinity College (Dublin, Ireland). School of Physics, 2005)
In this thesis the surface of single crystals and thin films of magnetite
(001) and (110) have been studied by scanning tunneling microscopy (STM),
scanning tunneling spectroscopy (STS), Auger electron spectroscopy (AES)
and ...
Regional and temporal variations in tissue sodium concentration during the acute stroke phase
(2012)
A technique for noninvasively quantifying the concentration of
sodium (23Na) ions was applied to the study of ischemic
stroke. 23Na-magnetic resonance imaging techniques have
shown considerable potential for measuring ...