84,890 research outputs found
A. A. & P. F. White
No full textView from water tower, Wilkinson Street and Goyder Road, Darwin. Shows Goyder Road, Bullocky Point, Vestey's Meatworks, Mindil Beach. Taken prior to construction of Darwin High School.White, A. A. & P. F.Date:195
DIPOLE STABILIZING RODS SYSTEM FOR A FOUR-VANE RFQ : MODELING AND MEASUREMENT ON THE TRASCO RFQ ALUMINUM MODEL AT LNL
No full textThe Dipole Stabilizing Rods (DSR’s) are devices
used in order to reduce a priori the effect
of perturbation on the operating mode of
a four-vane RFQ caused by neighboring dipole modes by increasing the frequency spacing between the TE210 mode
and dipole modes, without, in principle, affecting the quadrupole TE210 mode. They have proven to be particularly
useful in the case of coupled RFQ’s whose overall length is significantly greater than the operatingwavelength. In this
article we present a circuit model of such DSR’s, that, used in combination with a transmission line model of a four
vane RFQ, has allowed us to predict the dimensioning of the DSR’s in the case of the aluminum model of TRASCO
RFQ. The DSR parameters and, in general, the accuracy of the model have been also confirmed by HFSS simulations
and by RF measurements on the above-mentioned model
prior-motion-reconstruction-CT: Demo to use a novel prior- and motion-based reconstruction (PRIMOR) method
No full text<p>This repository contains a demo that shows how to use a novel prior- and motion-based reconstruction (PRIMOR) method for respiratory gated CT, as presented in the paper A novel prior- and motion-based compressed sensing methods for small-animal respiratory gated CT. JFPJ Abascal, M Abella, E Marinetto, J Pascau, and M Desco. PLOS ONE 9;11(3):e0149841, 2016. DOI: <a href="http://dx.doi.org/10.1371/journal.pone.0149841">http://dx.doi.org/10.1371/journal.pone.0149841</a></p>
Specification of prior distributions under model uncertainty
No full textWe consider the specification of prior distributions for Bayesian model comparison, focusing on regression-type models. We propose a particular joint specification of the prior distribution across models so that sensitivity of posterior model probabilities to the dispersion of prior distributions for the parameters of individual models (Lindley's paradox) is diminished. We illustrate the behavior of inferential and predictive posterior quantities in linear and log-linear regressions under our proposed prior densities with a series of simulated and real data examples
[Report to W. P. Gannaway by F. A. Hellinghausen and P. M. Parks, February 10, 1964 #3]
No full textIntelligence report to Captain W. P. Gannaway and Lt. Jack Revill regarding Thomas M. and Natalie Ray and Lee Harvey Oswald. Lee Harvey Oswald was friends with Mr. and Mrs. Ray. Mr. Oswald stayed at their home a few days prior to the assassination of President Kennedy
[Report to W. P. Gannaway by F. A. Hellinghausen and P. M. Parks, February 10, 1964 #2]
No full textCriminal intelligence report regarding an interview with Thomas M. and Natalie Ray. The Rays were friends of Lee Harvey Oswald and allowed him to stay at their home a few days prior to the assassination of President Kennedy. They stated that they first met Oswald at a party given at Mr. Declan Ford's home
Applying phase conjugate arrays to sonar
No full textA phase conjugate array (time reversal mirror) is a method of focusing acoustic energy spatially and temporally in a complex ocean propagation environment. Signals from a probe source are received on an array, time-reversed and re-transmitted. Multipath components are directed back along the paths over which they arrived, in the reverse order they were received. Numerical models have been developed to predict the focusing achievable with different array configurations in different types of environment. The effect of a time dependent rough surface has also been calculated. The models are described and examples of results obtained presented. An alternative focusing method based on inverse filters has been developed which may be an important enhancement to the basic reversal method. The relationship between the two methods and the advantages of each are explained. The models of focusing performance need validation using data taken in real environments. The type of experimental system required to provide this validation is described. The focusing techniques can be used in a number of ways to improve the performance of sonar and underwater communication systems. Examples of new types of sonar that exploit the focusing techniques to deliver improved performance are described.</p
[Report to W. P. Gannaway by F. A. Hellinghausen and P. M. Parks, February 10, 1964 #1]
No full textCriminal intelligence report regarding an interview with Thomas M. and Natalie Ray. The Rays were friends of Lee Harvey Oswald and allowed him to stay at their home a few days prior to the assassination of President Kennedy. They stated that they first met Oswald at a party given at Mr. Declan Ford's home
[Report to W. P. Gannaway by F. A. Hellinghausen and P. M. Parks, February 10, 1964 #3]
No full textCriminal intelligence report regarding an interview with Thomas M. and Natalie Ray. The Rays were friends of Lee Harvey Oswald and allowed him to stay at their home a few days prior to the assassination of President Kennedy. They stated that they first met Oswald at a party given at Mr. Declan Ford's home
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