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A Summary of Planetary Work at the Lowell Observatory and the Conditions Under Which It Has Been PerformedDouglass, A.E. January 1899 (has links)
In accordance with the title, the present paper divides itself into two parts, of which the first wil1 be a brief resume of the planetary work done here, with a few details and announcements which have not heretofore been given to the public, and the second will present the writer's personal opinions of why it has been possible to reach these results. The latter must necessarily be more in the form of suggestions than facts, for to give facts one must have tried personally many widely separated localities over long periods of time.
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TRIUMF and UBC in the SNO ExperimentMcDonald, Art 06 May 2008 (has links)
No description available.
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Robust Signal Extraction Methods and Monte Carlo Sensitivity Studies for the Sudbury Neutrino Observatory and SNO+ ExperimentsWRIGHT, ALEXANDER 15 September 2009 (has links)
The third and final phase of the Sudbury Neutrino Observatory (SNO)
experiment utilized a series of 3He proportional counters called
Neutral Current Detectors (NCDs) to detect the neutrons produced by
the neutral current interactions of solar neutrinos in the
detector. The number of neutrons detected by the NCDs, and hence the
total flux of 8B solar neutrinos, has been determined using two
novel signal extraction techniques which were designed to be robust
against potential unexpected behaviour in the NCD background. These
techniques yield total 8B solar neutrino flux measurements of
5.04(+0.42-0.40(stat))(+/-0.28(syst))x10E6/cm2/s
and (4.40 - 6.43)x10E6/cm2/s, which are in good agreement
with previous SNO results and with solar model
predictions, and which confirm that previous NCD analyses were not
unduly affected by unexpected background behaviour.
The majority of the hardware from the now-completed SNO experiment
will be reused to create a new liquid scintillator based neutrino
experiment called SNO+. An important part of the SNO+ physics
program will be a search for neutrinoless double beta decay, carried
out by dissolving 150Nd into the scintillator. The sensitivity of
the SNO+ experiment to neutrinoless double beta decay has been
evaluated. If loaded at 0.1% (w/w) with natural neodymium, after
1 kTa of data taking SNO+ would
have a 90%C.L. sensitivity equivalent to a neutrinoless double beta decay half life of 8.0x10E24a or better 50%
of the time; if the experiment were run with neodymium enriched to 50% in 150Nd this
limit improves to 57x10E24a. Under a reasonable choice for the
150Nd neutrinoless double beta decay matrix element, these half lives correspond
to upper limits on the effective Majorana neutrino mass of 112 meV and
42 meV, respectively. These limits are competitive with those expected from all other
near-term neutrinoless double beta decay experiments. / Thesis (Ph.D, Physics, Engineering Physics and Astronomy) -- Queen's University, 2009-09-10 21:07:00.25
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Pilgrimage to the Night SkyHosein, Vincent 12 January 2015 (has links)
The purpose of the Pilgrimage to the Night Sky is to encourage a self driven journey of rediscovering the beauty and simple pleasure of looking up and seeing a star-filled sky. The goal is to create two sites in the landscape that will act as the starting points to this pilgrimage by showcasing the stars in the night sky and will nurture the curiosity of those who have an interest in the heavens. A progression approach is meant to be experienced while on this journey, with the first stage of the pilgrimage taking place in Assiniboine Forest. The second stage of the pilgrimage takes place ten minutes south of the city at Glenlea Observatory which hosts an exponential increase of stars in the night sky. The practicum concludes with an assortment of resources people can use to continue their pilgrimage and search for their darkest night sky.
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NEPTSim: simulating NEPTUNE Canada using OMNeT++Martonalti, Burak 29 August 2012 (has links)
North-East Pacific Undersea Network Experiments (NEPTUNE) is a multi-node cabled ocean observatory linked by 818 kilometers of powered fiber optic cable off-shore
from Vancouver Island across the northern Juan de Fuca tectonic plate. It includes
a Data Management and Archive Station (DMAS) at the University of Victoria (UVic)
and a shore station at Port Alberni, BC, Canada. The core of the
network consists of 6 branching units, 6 node stations, 13 junction boxes and more
than 130 instruments.
In this paper, we explore the costs and benefits of constructing a simulator for
NEPTUNE using the OMNeT++ simulation platform---a C++ based discrete-event
simulator. In this context, we present the design and implementation of a simple
simulator that can work with a variety of configurations of instruments, where
the instruments are connected to DMAS via junction boxes and branching units, and
generate TCP and UDP traffic following certain patterns. The simulator is
designed for supporting \emph{what-if} scenario analysis, particularly with
respect to system evaluation and discovery of limits associated with network
traffic behaviors. Our study reveals that, although building the simulator in
OMNeT++ has many advantages such as ease of tuning and calibration, capturing
sufficient details regarding the working behavior of the actual NEPTUNE
environment is still challenging. A survey of alternative tools, including
NS-2/NS-3, OPNET, JiST/SWANS, J-Sim, SSFNet, and Qualnet reveals that these
nuances would not be any less challenging within these simulation environments. / Graduate
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Optical calibration of the Sudbury Neutrino Observatory and determination of the 8B solar nutrino flux in the salt phase /Grant, Darren R. January 1900 (has links)
Thesis (Ph. D.)--Carleton University, 2004. / Includes bibliographical references (p. 159-165). Also available in electronic format on the Internet.
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Investigating feedback and relaxation in clusters of galaxies with the Chandra X-ray ObservatoryCavagnolo, Kenneth W. January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Dept. of Astronomy and Astrophysics, 2008. / Title from PDF t.p. (viewed on July 23, 2009) Includes bibliographical references (p. 238-251). Also issued in print.
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Passive radar observations of the aurora /Lind, Frank David. January 1999 (has links)
Thesis (Ph. D.)--University of Washington, 1999. / Vita. Includes bibliographical references (p. 168-204).
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Studies of a novel method for solar neutrino neutral current detection in the Sudbury neutrino observatory.Paterson, David John, Carleton University. Dissertation. Physics. January 1989 (has links)
Thesis (M. Sc.)--Carleton University, 1989. / Also available in electronic format on the Internet.
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A Monte Carlo study of the Sudbury Neutrino Observatory small test detector experiment.Yeung, Alan B. (Alan Brian), Carleton University. Dissertation. Physics. January 1990 (has links)
Thesis (M. Sc.)--Carleton University, 1990. / Also available in electronic format on the Internet.
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