15,165 research outputs found
Abraham Block research collection
This collection contains research materials gathered by Mary L. Kwas of the Arkansas Archeological Survey regarding the Abraham and Fanny Block family--one of the earliest Jewish families to settle in Arkansas
Bold Impressions: block printing 1910-1950
An edited extract from the illustrated brochure produced to accompany a touring exhibition curated by Mary Schoeser for Central Saint Martins College of Art & Design, shown in the Lethaby Gallery, Southampton Row, from October 3rd to 31st, 1995, and at ten subsequent venues until June 1997
The characterisation and analysis of in-situ and blasted block-size distributions and the blastability of rock masses.
PhDIn this thesis, previous research on discontinuity geometry, in-situ block size
distribution (IBSD), blasted block size distribution (BBSD), and blastability of rock
mass is discussed. The IBSD with special reference to discontinuities with a fractal
spacing distribution is investigated using computer simulation, from which a set of
empirical equations is derived for predicting the IBSD of a rock mass with
discontinuities of fractal spacing distributions. The goodness-of-fit of theoretical as
compared with real spacing distributions is discussed and a grey correlation analysis
technique is introduced into the goodness-of-fit.
An estimation of mean trace length of discontinuities with lognormal and fractal
distributions is derived. A numerical algorithm and associated computer program for
estimating the discontinuity size distribution is developed from which empirical
equations for estimating the mean size of discontinuities with negative exponential,
lognormal and fractal trace length distributions have been derived. A factor which
accounts for the discontinuity impersistence is incorporated into the estimation of
IBSD.
Combining both Ross-Ram and Schuhmann models, a reasonably accurate and
user-friendly "photo-scanline" technique is devised for the estimation of BBSD of
the blastpile.
Blasting results, as a function of both the intact rock properties and the
discontinuity structures are investigated, and an energy-block-transition model
characterising the blastability of rock masses is developed. It is argued that the
blastability of rock mass is governed by a comprehensive range of both intact rock
properties and discontinuity parameters, and that the fractal dimension of the IBSD of
a rock mass could be an indicator of blastability. Taking into account that blastability
is a complex property, a methodology of assessing blastability of rock masses is
introduced using a Rock Engineering Systems method.
Published data from the literature has been used wherever possible to support the
validation of the new techniques of analysis and two case histories in which
applications of the developed methodologies and techniques are presented
Report on the Human Remains Recovered from Block 23CB on Colonial Williamsburg Property
During the summer of 2003, Dr. Michael Blakey, director of the Institute for Historical Biology, was contacted by the archaeologists at Colonial Williamsburg Foundation notifying him that they had located human remains at the intersection of Jamestown, Richmond and Boundary Roads. The remains were excavated by Colonial Williamsburg Foundation archaeologists and taken to their conservation lab until further notice. On 22 November 2003, Shannon Mahoney, a graduate research associate at the Institute for Historical Biology, contacted Andrew Edwards and Emily Williams of Colonial Williamsburg regarding the remains on Block 23 of the Colonial Williamsburg historic area. On 12 January 2004, Blakey and Mahoney visited the conservation lab where Emily Williams described the recovery of the remains and the field methodology. During excavation at the site, Lucie Vinciguerra had removed the remains and wrapped them in foil and the foil packets were placed in a refrigerator to inhibit any further deterioration. Emily Williams cleaned the remains and mended a few of the elements with B-72, which were then placed in plastic bags and labeled with their original foil packet number
Surveillance centric coding
PhDThe research work presented in this thesis focuses on the development of techniques
specific to surveillance videos for efficient video compression with higher processing
speed. The Scalable Video Coding (SVC) techniques are explored to achieve higher
compression efficiency. The framework of SVC is modified to support Surveillance
Centric Coding (SCC). Motion estimation techniques specific to surveillance videos
are proposed in order to speed up the compression process of the SCC.
The main contributions of the research work presented in this thesis are divided into
two groups (i) Efficient Compression and (ii) Efficient Motion Estimation. The
paradigm of Surveillance Centric Coding (SCC) is introduced, in which coding aims
to achieve bit-rate optimisation and adaptation of surveillance videos for storing and
transmission purposes. In the proposed approach the SCC encoder communicates
with the Video Content Analysis (VCA) module that detects events of interest in
video captured by the CCTV. Bit-rate optimisation and adaptation are achieved by
exploiting the scalability properties of the employed codec. Time segments
containing events relevant to surveillance application are encoded using high spatiotemporal
resolution and quality while the irrelevant portions from the surveillance
standpoint are encoded at low spatio-temporal resolution and / or quality. Thanks to
the scalability of the resulting compressed bit-stream, additional bit-rate adaptation is
possible; for instance for the transmission purposes. Experimental evaluation showed
that significant reduction in bit-rate can be achieved by the proposed approach
without loss of information relevant to surveillance applications.
In addition to more optimal compression strategy, novel approaches to performing
efficient motion estimation specific to surveillance videos are proposed and
implemented with experimental results. A real-time background subtractor is used to
detect the presence of any motion activity in the sequence. Different approaches for
selective motion estimation, GOP based, Frame based and Block based, are
implemented. In the former, motion estimation is performed for the whole group of
pictures (GOP) only when a moving object is detected for any frame of the GOP.
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While for the Frame based approach; each frame is tested for the motion activity and
consequently for selective motion estimation. The selective motion estimation
approach is further explored at a lower level as Block based selective motion
estimation. Experimental evaluation showed that significant reduction in
computational complexity can be achieved by applying the proposed strategy. In
addition to selective motion estimation, a tracker based motion estimation and fast
full search using multiple reference frames has been proposed for the surveillance
videos.
Extensive testing on different surveillance videos shows benefits of
application of proposed approaches to achieve the goals of the SCC
A study of the impact of time lapse on language retention in beginning level Spanish classes
Plan BA pre-test was given to all Spanish 2 students at Menomonie High School during the 1999-2000 school year to determine if there was a relationship between retention of basic Spanish language skills and information learned in a Spanish 1 course and the time lapse between the Spanish 1 and Spanish 2 courses. After a review of the Spanish 1 curriculum at Menomonie High School a 50 point true/false and multiple choice pre-test was developed by the researcher to cover basic skills and information that students should have acquired in the Spanish 1 course. At the same time as the assessment was given, students were also asked to rate their level of anxiety at the beginning of the Spanish 2 course. Students’ final percentage grades from their Spanish 1 course were used as the baseline data for this study. The grades were obtained from the teachers of the Spanish 1 classes and recorded by the researcher. The scores from the Spanish 2 pre-test were converted into percentages and compared with the baseline data to find out if there was a retention loss and if the retention loss was greater for students with a longer time lapse. All students’ final grades in the Spanish 2 class were also recorded to determine if there was a significant difference for students with a longer time lapse. The findings of this study indicate that there is a significant difference in the retention of basic skills and information among the four groups under study based on the time lapse between instruction (Group 1, 0 months; Group 2, 3 months; Group 3, 8 months; Group 4, 12 months). There was no significant difference among the four groups in their final Spanish 2 grades. Students with a longer time lapse between levels of instruction showed higher levels of anxiety than students with little or no time lapse. The results of this study can be used by teachers and administrators to determine alternative learning methods and environments for students who are affected by a long time lapse in their foreign language education. Based on the results of this study, teachers and administrators may also want to consider alternative scheduling to accommodate foreign language learning
Nested row-column designs for near-factorial experiments with two treatment factors and one control treatment
The authors also thank Queen Mary, University of London, the University of St Andrews and the Poznan University of Life Sciences for financial support. The second author was also supported by the British-Polish Young Scientists Programme, grant WAR/342/116.This paper presents some methods of designing experiments in a block design with nested rows and columns. The treatments consist of all combinations of levels of two treatment factors, with an additional control treatment.Peer reviewe
The subterranean cavern; or, Memoirs of Antoinette de Monflorance. [electronic resource] : In four volumes. By the author of Delia and Rosina.
Author of Delia and Rosina = Mrs. Mary Pilkington.Black,Blakey,Block,Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
'Cross Block Split', Mary Redmond
This on-line review is of Mary Redmond's exhibition 'Cross Block Split' at Platform, Glasgow (27 June - 31 August 2014). This solo exhibition was part of 'GENERATION 25 Years of Contemporary Art in Scotland'.
MAP publishes art writing, interviews and critical essays online
A Rainbow Block Quilt By Mary Handy, undated
This black and white photograph features a rainbow block quilt made my Mary Handy in Amite County, Mississippi.https://scholarsjunction.msstate.edu/mss-wilson-minor-photographs/1083/thumbnail.jp
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