منابع مشابه
Disentangling instrumental broadening
A new procedure aiming at disentangling the instrumental profile broadening and the relevant X-ray powder diffraction (XRPD) profile shape is presented. The technique consists of three steps: denoising by means of wavelet transforms, background suppression by morphological functions and deblurring by a Lucy–Richardson damped deconvolution algorithm. Real XRPD intensity profiles of ceria samples...
متن کاملA new, simple approximation for the deconvolution of instrumental broadening in spectroscopic band profiles.
A robust empirical correction formula has been developed for the approximation of Lorentzian widths, using a known spectrometer bandpass, in instrument-broadened Voigt bands in optical spectra. The relationship between analytically calculated [(w(Voigt) - w(Lorentz))/w(Gauss)] and [w(Voigt)/w(Gauss) - 1] values (where w is the full width at half-maximum [FWHM]) is analyzed to derive the formula...
متن کاملDeconvolving instrumental and intrinsic broadening in core-shell x-ray spectroscopies
T. T. Fister,1 G. T. Seidler,1,* J. J. Rehr,1 J. J. Kas,1 W. T. Elam,2 J. O. Cross,3 and K. P. Nagle1 1Physics Department, University of Washington, Seattle, Washington 98105, USA 2Applied Physics Laboratory, University of Washington, Seattle, Washington 98105, USA 3Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA Received 1 February 2007; revised manuscript rec...
متن کاملDisentangling the Roles of Approach, Activation and Valence in Instrumental and Pavlovian Responding
Hard-wired, Pavlovian, responses elicited by predictions of rewards and punishments exert significant benevolent and malevolent influences over instrumentally-appropriate actions. These influences come in two main groups, defined along anatomical, pharmacological, behavioural and functional lines. Investigations of the influences have so far concentrated on the groups as a whole; here we take t...
متن کاملInstrumental Desires , Instrumental Rationality
The requirements of instrumental rationality are often thought to be normative conditions on choice or intention, but this is a mistake. Instrumental rationality is best understood as a requirement of coherence on an agent's non-instrumental desires and means-end beliefs. Since only a subset of an agent's means-end beliefs concern possible actions, the connection with intention is thus more obl...
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ژورنال
عنوان ژورنال: Journal of Applied Crystallography
سال: 2005
ISSN: 0021-8898
DOI: 10.1107/s0021889805017206