134,976 research outputs found
R.C. Farrell Store
No full textPhotograph - People standing in front of R.C. Farrell, General Merchant store, Athabasca, Alberta. Left to right: Lance Smith, Louis Menard, Romeo Farrell, Athela LaRue Farrell, and Ray Vari
Farrell and Daigneau Store
No full textPhotograph - Interior view of Farrell and Daigneau Store, Athabasca, Alberta. Left to right, Hamel (book keeper), Joseph Arthur Daigneau, Jim Demers, Moise Hogne, and Romeo C. Farrel
Farrell, A B (Arthur Brian), NX35902
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/384615Surname: FARRELL. Given Name(s) or Initials: A B (ARTHUR BRIAN). Military Service Number or Last Known Location: NX35902. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 45580.230357
Item: [2016.0049.16908] "Farrell, A B (Arthur Brian), NX35902
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Building Specifications in the Event-B Institution
No full textThis paper describes a formal semantics for the Event-B specification
language using the theory of institutions. We define an institution for
Event-B, EVT, and prove that it meets the validity requirements for
satisfaction preservation and model amalgamation. We also present a series of
functions that show how the constructs of the Event-B specification language
can be mapped into our institution. Our semantics sheds new light on the
structure of the Event-B language, allowing us to clearly delineate three
constituent sub-languages: the superstructure, infrastructure and mathematical
languages. One of the principal goals of our semantics is to provide access to
the generic modularisation constructs available in institutions, including
specification-building operators for parameterisation and refinement. We
demonstrate how these features subsume and enhance the corresponding features
already present in Event-B through a detailed study of their use in a worked
example. We have implemented our approach via a parser and translator for
Event-B specifications, EBtoEVT, which also provides a gateway to the Hets
toolkit for heterogeneous specification
July-December -- 1967 -- Correspondence, Miscellaneous -- letter, 1967-07-06
No full textLetter from Farrell, Earl J. to Sabin, Albert B. dated 1967-07-06.Sabin Collection Fair Use Policy</a
Mariann Russell: Melvin B. Tolson\u27s Harlem gallery: a literary analysis
No full textBook Review by Grace Farrell Lee.
Russell, Mariann. Melvin B. Tolson\u27s Harlem gallery: a literary analysis. Columbia: University of Missouri Press, 1980
Pulse-pumping of cascaded Raman fibre amplifiers
No full textIn this thesis, I investigate cascaded Raman fibre amplifiers (RFAs) pumped with shaped optical pulses delivered from a Yb doped fibre MOPA source. RFAs offer the potential to generate gain at any arbitrary wavelength with an appropriate pump source, limited only by the fibre’s transparency range. The use of a counter-propagating signal and pump creates a continuous gain, despite the instantaneous nature of stimulated Raman scattering (SRS). A high power Yb doped fibre source emitting around the 1050 to 1100 nm region offers a flexible pump source that can in principle be used to generate gain for any signal from ~1100 to 2000 nm in a silica-based fibre via cascaded SRS. This opens up opportunities for an ultrabroadband amplifier with unmatched spectral width. Furthermore, by using a pump source that is in a MOPA configuration there is a high degree of control over the output characteristics which offers the potential of near-instantaneous electronic control of ultra-broadband Raman gain spectra. In the simplest configuration, cascaded Raman wavelength shifting across a wide range of wavelengths using single-level pump pulses (i.e., approximate super-Gaussian pulses) is investigated. Using a silica-based highly nonlinear fibre (HNLF), cascaded Raman wavelength shifting up to seven Stokes orders is demonstrated and counter-propagating gain measurements are made across all seven Stokes orders. From a pump wavelength of 1064 nm, the peak gain of the 7th Stokes order was ~1575 nm which demonstrated the potential for gain covering more than 500 nm. I believe this is the first time such a measurement has been undertaken. Other fibre types were also studied for comparison. Furthermore, the noise performance and gain saturation properties of cascaded RFAs were investigated, as well. In a more advanced configuration, the Raman gain spectra produced from pumping the HNLF with step-shaped pump pulses are investigated. Such pulses consist of multiple levels with different, controllable, instantaneous powers. By adjusting the power of each step appropriately I show that different parts of the pulse transfer their energy to different Stokes orders, leading to a controllable gain spectrum covering multiple Stokes orders at the same time. I further study how the gain spectrum can be controlled by manipulating the individual duty cycle of each section of the step-shaped pump pulses as well as using multiple pump wavelengths in a time-division multiplexed pumping scheme. Single and dual wavelength pumping of various fibres with step-shaped pulses was experimentally demonstrated. Raman gain spectra spanning two and three Stokes orders and covering over 100 nm were realised. Computer simulations are also carried out for pumping with more than two pump wavelengths and for gain spectra targeting gain simultaneously up to seven Stokes orders and covering up to ~500 nm. This shows that the use of step-shaped pulses and multiple pump wavelengths allow for further increase and control of the useable bandwidth
Supporting data for the paper "Efficient white noise sampling and coupling for multilevel Monte Carlo with non-nested meshes"
No full textThe attached files contain the supporting data for the paper "Efficient white noise sampling and coupling for multilevel Monte Carlo with non-nested meshes" by Matteo Croci, Michael B. Giles, Marie E. Rognes and Patrick E. Farrell, as accepted in SIAM/ASA Journal on Uncertainty Quantification on 09 September 2018.
See README file for additional information regarding the data
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