4,469 research outputs found
Letter to J B Whelan
No full textTypescript letter from the Honorary Assistant Secretary of the Anti-Partition of Ireland League inviting Mr Whelan to a meeting. Dated 2 March 1939
Letter to J B Whelan
No full textTypescript letter dated 2 March 1939, from the Honorary Assistant Secretary of the Anti-Partition of Ireland League, regarding list of names and asking Mr Whelan to send signed membership forms
Enhanced computer assisted detection of polyps in CT colonography
No full textThis thesis presents a novel technique for automatically detecting colorectal polyps in computed tomography colonography (CTC). The objective of the documented computer assisted diagnosis (CAD) technique is to deal with the issue of false positive detections without adversely affecting polyp detection sensitivity. The thesis begins with an overview of CTC and a review of the associated research areas, with particular attention given to CAD-CTC. This review identifies excessive false positive detections as a common problem associated with current CAD-CTC techniques. Addressing this problem constitutes the major contribution of this thesis. The documented CAD-CTC technique is trained with, and evaluated using, a series of clinical CTC data sets These data sets contain polyps with a range of different sizes and morphologies. The results presented m this thesis indicate the validity of the developed CAD-CTC technique and demonstrate its effectiveness m accurately detecting colorectal polyps while significantly reducing the number of false positive detections
Promoting social inclusion, equity and well-being for young people with autism spectrum condition: A community music facilitator (and parent) perspective
No full textIn a service provision arena dominated by clinical providers and supported employment programs, Whelan proposes a strength-based creative arts model for post-school transition. In the context of a commonwealth citizenship agenda of ‘equality and opportunity for all’ Whelan reflects on his experience devising and delivering a digital-arts program to fill the void encountered by young people on the autism spectrum as they transition from school to the commencement of their adult lives
Measurements of mean lifetime and branching fractions of b hadrons decaying to J / psi
No full textFrom a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ− or e+e−. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19−0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given
A comparison of river water quality sampling methodologies under highly variable load conditions
No full textWhen river water quality fluctuates over relatively short periods of time with respect to the sampling frequency, the collection of grab samples may be inappropriate for characterising average water quality. This paper presents the results of a water quality monitoring study carried out on a stretch of the river Lambro (northern Italy) dominated by a periodically overloaded sewage treatment works
(STW) located near its upstream end. Water quality was strongly influenced by a pronounced diurnal cycle in pollutant loads caused by the regular emission of untreated waste water during periods of high domestic flow (daytime). Two different sampling techniques were employed: grab sampling and 24-h composite sampling using automatic samplers. Samples were collected at the plant overflow and at
several sites along the river and analysed for two common ingredients of household detergents, linear alkylbenzene sulphonate (LAS) and
boron (B) and for routine water quality variables. The results obtained show that: (1) The diurnal variability of point-source-derived chemical concentrations in the river downstream of the undersized STW increased with increasing removal efficiency in sewage treatment. (2) The shape of the diurnal concentration signal remained relatively intact for a considerable distance downstream of the STW for several water quality variables, suggesting that hydrodynamic dispersion plays a relatively minor role in controlling concentration patterns in this river. (3) In-stream degradation of LAS was consistent with first order kinetics with a rate constant of 0.05–0.06 h^(-1). (4) Grab sampling is a relatively inefficient methodology for capturing mean concentrations for rivers subjected to highly variable loads, especially when it is restricted to office hours. The inefficiency of grab sampling is more marked for substances (e.g. LAS) which are effectively removed during sewage treatment than for substances which are not. (5) For LAS, diurnal variability in the concentration signal decreases with distance downstream, making grab sampling an increasingly reliable methodology for estimating mean concentrations. (6) 24-h composite sampling is an efficient way of eliminating the effect of diurnal variations in load strength
Discriminating potential astrophysical sources of the highest energy cosmic rays with the Pierre Auger Observatory
No full textUniversity of Adelaide participants in the Pierre Auger Collaboration: ... K. B. Barber... J. A. Bellido... R. W. Clay... B. R. Dawson... V. C. Holmes... P. Wahrlich... B. J. Whelan... M. G. WinnickWe compare the distribution of arrival directions of the highest energy cosmic rays detected by the Pierre Auger Observatory from 1 January 2004 to 31March 2009 with that of populations of potential astrophysical sources. For this purpose, we use several complementary statistical tests allowing one to describe and quantify the degree of compatibility between data and a given catalogue of sources. We applied these tests to active galactic nuclei detected in X-rays by SWIFT-BAT and to galaxies found in the HI Parkes and in the 2 Micron All-Sky Surveys.Julien Aublin, for the Pierre Auger Collaborationhttp://inspire.ornl.gov/Document/View/a22a2303-94d8-4649-8918-3000fa8eeccd?q=topic%3A%22Physics%2
Whelan, Martin J. (Death, 1908-09-14)
No full textAddress: 2619 Euclid AvenueAge at death: 30 Yrs.206/Pg. 110/1908/M W S/B. P. - City/Dr. Wm. J. Murray/John J. Gilligan/St. Joseph New Cem.Original record filed in drawer labeled 'WESTEN-WHITCON'
Erratum to "Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory" [Astroparticle Physics 32(2) (2009), 89-99]
No full textThe Pierre Auger Collaboration... K.B. Barber... J.A. Bellido... R.W. Clay... B.R. Dawson... V.C. Holmes... J. Sorokin... P. Wahrlich... B.J. Whelan... M.G. Winnick... et al.http://www.elsevier.com/wps/find/journaldescription.cws_home/523319/description#descriptio
Description of atmospheric conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)
No full textAtmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a global atmospheric model predicated on meteorological measurements and numerical weather predictions. GDAS provides altitude-dependent profiles of the main state variables of the atmosphere like temperature, pressure, and humidity. The original data and their application to the air shower reconstruction of the Pierre Auger Observatory are described. By comparisons with radiosonde and weather station measurements obtained on-site in Malargüe and averaged monthly models, the utility of the GDAS data is shown. © 2012 Elsevier B.V. All rights reserved.The Pierre Auger Collaboration... K. B. Barber... J. A. Bellido... R. W. Clay... M. J. Cooper... B. R. Dawson... T. A. Harrison... A. E. Herve... V. C. Holmes... J. Sorokin... P. Wahrlich... B. J. Whelan... et al
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