5,066 research outputs found
MOCASSIN: a fully three-dimensional Monte Carlo photoionization code
No full textThe study of photoionized environments is fundamental to many astrophysical problems. Up to the present most photoionization codes have numerically solved the equations of radiative transfer by making the extreme simplifying assumption of spherical symmetry. Unfortunately very few real astronomical nebulae satisfy this requirement. To remedy these shortcomings, a self-consistent, three-dimensional radiative transfer code has been developed using Monte Carlo techniques. The code, MOCASSIN, is designed to build realistic models of photoionized nebulae having arbitrary geometry and density distributions, with both the stellar and diffuse radiation fields treated self-consistently. In addition, the code is capable of treating one or more exciting stars located at non-central locations.The gaseous region is approximated by a cuboidal Cartesian grid composed of numerous cells. The physical conditions within each grid cell are determined by solving the thermal equilibrium and ionization balance equations. This requires a knowledge of the local primary and secondary radiation fields, which are calculated self-consistently by locally simulating the individual processes of ionization and recombination. The structure and the computational methods used in the MOCASSIN code are described in this paper.MOCASSIN has been benchmarked against established one-dimensional spherically symmetric codes for a number of standard cases, as defined by the Lexington/Meudon photoionization workshops: at Meudon in 1985 and at Lexington in 1995 and 2000. The results obtained for the benchmark cases are satisfactory and are presented in this paper. A performance analysis has also been carried out and is discussed here
YMCA Boys Work Secretary Report for the Western Provinces of Canada February 1917
No full textA report titled "Report: Boys' Work Secretary Western Provinces--February 1917" created and signed by John W. Storey. The report lists the cities in the Western Provinces of Canada that J. W. Storey was able to visit and the work he did there in the month of February 1917. Only Toronto and Winnipeg were visited.John W. Storey was born in Dublin, Ireland, and graduated from the International YMCA Training School (now known as Springfield College) in 1906. He was the Boys’ Work Director of the Association in Yangon (Rangoon), Burma (Myanmar). He returned to Springfield, where he married his wife, in 1911. He then worked at various YMCAs in the US, before moving to Canada. He served churches in Canada before leaving for the UK where he was the Rector at Staplegrove for about 24 years
YMCA Boys Work Secretary Report for the Western Provinces of Canada February 1917
No full textA report titled "Report: Boys' Work Secretary Western Provinces--February 1917" created and signed by John W. Storey. The report lists the cities in the Western Provinces of Canada that J. W. Storey was able to visit and the work he did there in the month of February 1917. Only Toronto and Winnipeg were visited.John W. Storey was born in Dublin, Ireland, and graduated from the International YMCA Training School (now known as Springfield College) in 1906. He was the Boys’ Work Director of the Association in Yangon (Rangoon), Burma (Myanmar). He returned to Springfield, where he married his wife, in 1911. He then worked at various YMCAs in the US, before moving to Canada. He served churches in Canada before leaving for the UK where he was the Rector at Staplegrove for about 24 years
Robert Storey
No full textPhotographic portrait of Robert Storey, taken in the J. K. Stevens studio, 786 W. Madison Street, Chicago, Illinois. Page 6 in the album of Carrie F. Hosking.https://digitalcommons.chapman.edu/hoskings_family/1015/thumbnail.jp
Seismic design of mixed CLT/light-frame multi-storey buldings
No full textThis paper presents a study on the seismic design of hybrid multi-storey wood buildings made of CLT and Light-Frame shear walls acting at the same level. Within the framework of the force-based method, the aim of this study is to propose a simple formulation in order to establish the value of the q-factor of the hybrid system which could be also implemented in seismic design codes such as Eurocode 8. This was achieved by analysing the results of nonlinear dynamic (time-history) analyses performed on a four storey case-study building with different combinations of CLT and Light-Frame shear walls
Mrs. Robert Storey
No full textPhotographic portrait of Mrs. Robert Storey, taken in the J. K. Stevens studio, 786 W. Madison Street, Chicago, Illinois. On Page five of the photo album of Carrie F. Hosking.https://digitalcommons.chapman.edu/hoskings_family/1014/thumbnail.jp
Report of YMCA Boys Work for September 15th through December 31st, 1916
No full textThis is a report titled "Boys Work Western Provinces: Report of work for September 15th through December 31st 1916." written by John W. Storey. The report is four pages long and describes everything that J. W. Storey did in his travels through Canada including visiting the cities for conferences in Winnipeg, Calgary and Vancouver. At the end of the report, he also lists the Sermons and Addresses delivered (62), the total number of towns visited (26) and the number of people interviewed (74).John W. Storey was born in Dublin, Ireland, and graduated from the International YMCA Training School (now known as Springfield College) in 1906. He was the Boys’ Work Director of the Association in Yangon (Rangoon), Burma (Myanmar). He returned to Springfield, where he married his wife, in 1911. He then worked at various YMCAs in the US, before moving to Canada. He served churches in Canada before leaving for the UK where he was the Rector at Staplegrove for about 24 years
Report of YMCA Boys Work for September 15th through December 31st, 1916
No full textThis is a report titled "Boys Work Western Provinces: Report of work for September 15th through December 31st 1916." written by John W. Storey. The report is four pages long and describes everything that J. W. Storey did in his travels through Canada including visiting the cities for conferences in Winnipeg, Calgary and Vancouver. At the end of the report, he also lists the Sermons and Addresses delivered (62), the total number of towns visited (26) and the number of people interviewed (74).John W. Storey was born in Dublin, Ireland, and graduated from the International YMCA Training School (now known as Springfield College) in 1906. He was the Boys’ Work Director of the Association in Yangon (Rangoon), Burma (Myanmar). He returned to Springfield, where he married his wife, in 1911. He then worked at various YMCAs in the US, before moving to Canada. He served churches in Canada before leaving for the UK where he was the Rector at Staplegrove for about 24 years
Portable Scale.
No full textPatent for an improved, simple, and inexpensive portable scale meant for weighing cotton, corn, and other similar produce. It folds compactly when not in use, and has a tally device
Anomalous open-circuit voltage from a high-Tc superconducting dynamo
No full textThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in C. W. Bumby, Z. Jiang, J. G. Storey, A. E. Pantoja, and R. A. Badcock, Appl. Phys. Lett. 108, 122601 (2016) https://doi.org/10.1063/1.4943663
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