6,512 research outputs found
Portrait of R.J. Burchell [picture] /
No full textTitle devised by cataloguer from inscription on reverse.; Condition: Good.; Inscriptions: "R.J. Burchell" --In pencil on reverse. "Vandyke, Collins street, Melbourne" --Printed lower right corner.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an24229119
R.J. Sommers
No full textThe single-spaced paragraph on the “About the Author” page of R.J. Sommers’ latest novel says she lives in a one-story house on the edge of a city. It says she is renowned for writing relatable characters and compelling relationships. It says nothing about her own friends.
Gazing from a photo at the top of the page, R.J. Sommers appears to point a camera toward her readers..
Number of tracers required for the measurement of longshore transport distance on a shingle beach
No full textThe aim of this study was to identify a method for determining the number of tracer particles required to define the mean longshore transport distance of indigenous littoral shingle with a particular level of precision. A method is presented which can be applied to existing tracer data to determine both the precision of the measurements collected and the number of tracers required to achieve a particular level of precision. The method, which utilises well established statistical relationships, is demonstrated by applying it to archive tracer data. The study demonstrates the sensitivity of the number of tracers to the variance of the transport distances of indigenous particles at the site and the precision with which the investigator wishes to define the mean. It is anticipated that application of the method by other practitioners, in the future, will allow a dataset to develop which can be used alongside the method presented here to allow the number of tracers required for a study to be estimated prior to entering the field. Results are presented to initiate the development of this dataset and a “look-up chart” derived using the method is given to aid its application. <br/
R.J. Van Rowen showing fire extinguisher to Clay Zowarka and T.Dieckow
No full text''Collins Gardens Elementary follows air raid precautions in drill. L-R: R.J. Van Rowen, engineer, shows Clay Zowarka, T.Dieckow extinguisher.''''Since the attack on Pearl Harbor, the children in every school have been practicing air raid drills weekly ''. Each school has had to work out its own problems ''. but the general procedure has been worked out by the Office of Civilian Defense in Washington and instructions issued to all schools'
Cumbaya Project, Quito, Ecuador
No full textCER58SK30.July 1958.The study was conducted in the Hydraulic Laboratory, Colorado State University, Fort Collins, Colorado, for the consulting engineering firm of R.J. Tipton Associated Engineers, Inc., Denver, Colorado
An assessment of the accuracy of the Spatial Integration Method (SIM) for estimating coarse bedload transport in gravel-bedded streams using tracers
No full textThe accurate estimation of coarse sediment transport rate remains one of the goals of geomorphological and engineering studies of river channels. This paper describes an experiment designed to assess the accuracy of the Spatial Integration Method (SIM) of determining sediment transport rate or yield, using passive tracers. Tracer dispersion results are presented from five events of different magnitude. The study concludes that the SIM is capable of producing estimates of sediment transport rate that correspond with trapped values. Sources of error are quantified and guidance is given on the appropriate methods for deploying passive tracers for the estimation of coarse sediment transport rates
The implications on the UK of the impacts of climate change and sea-level rise on critical coastal infrastructure overseas, 2010 to 2100
No full text- …
