Zobrazeno 1 - 10
of 11
pro vyhledávání: '"John H. Atkinson"'
Autor:
Fei Xing, James P.M. Syvitski, Albert J. Kettner, Ehab A. Meselhe, John H. Atkinson, Ashok K. Khadka
Publikováno v:
Elementa: Science of the Anthropocene, Vol 5 (2017)
This study examines the morphodynamic response of a deltaic system to extreme weather events. The Wax Lake Delta (WLD) in Louisiana, USA, is used to illustrate the impact of extreme events (hurricanes) on a river-dominated deltaic system. Simulations
Externí odkaz:
https://doaj.org/article/19a2f1221c804dd481c963454e1b93fe
Autor:
David M. Potts, John H. Atkinson
Publikováno v:
Journal of the Geotechnical Engineering Division. 103:307-325
The paper investigates the influence of the depth of burial and crown settlement on the surface subsidence above shallow tunnels driven in soft ground. Model tests were conducted on tunnels in sand and in clay, and these are compared with one another
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d805dab4a63c72b6f9e7cd1c2ab41e30
https://doi.org/10.1061/ajgeb6.0000402
https://doi.org/10.1061/ajgeb6.0000402
Publikováno v:
Atkinson, John H.; Hess, Wilmot N.; Perez-Mendez, Victor; & Wallace, Roger.(1960). 5-Bev NEUTRON CROSS SECTIONS IN HYDROGEN AND OTHER ELEMENTS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/6tx9v7rd
Neutron total and reaction cross sections at 5.0 Bev were measured. Transmission measurements were made in good and poor geometry. The high-energy neutron beam was produced when the Bevatron circulating proton beam struck a copper target. Neutrons we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffa424d1e67c577c748fcc66a87a5921
https://doi.org/10.1103/physrev.123.1850
https://doi.org/10.1103/physrev.123.1850
Autor:
John H. Atkinson, Victor Perez-Mendez
Publikováno v:
Review of Scientific Instruments. 30:864-868
A gas Cerenkov counter is described which is suitable for charged‐particle detection in the Bev region (β from 0.980 to 0.999). Calibrations of the counting efficiency are included along with a table of indices of refraction of suitable gases. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ccda11cfc3f843e2c113e66c23b170a
https://doi.org/10.1063/1.1716368
https://doi.org/10.1063/1.1716368
Autor:
Albert Metter, Patterson Smith, W. Boural, Henry Washington, James H. Forman, John H. Atkinson, Henry James Morris, David G. Robinson, Samuel Green, W. H. Actkins, Thomas F. Page, John H. Hill, George W. Freeland, Harriet Eglin, Anthony Brown, Ellen Saunders, Samuel Miles, Robert E. Jones, Daniel Robertson, Frances Hilliard, William Donar, Rebecca Jones, Albert Brown, John L. Hall
Publikováno v:
The Journal of Negro History. 11:136-160
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38b0275d713fa3569c4b4a9974c17e01
https://doi.org/10.2307/2714027
https://doi.org/10.2307/2714027
Autor:
John H. Atkinson, Robert E. Jones
Publikováno v:
Optical Engineering. 1
A moderately sophisticated system has been developed for the calculation of the ground resolution attainable with photographic systems from space vehicles. Limitations on ground resolution are imposed by the parameters of the photographic system and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34e106025e04bace75b5dea49c2622a6
https://doi.org/10.1117/12.7971241
https://doi.org/10.1117/12.7971241
Autor:
Jr. John H. Atkinson
Publikováno v:
SPIE Proceedings.
Photography from space is limited in results by both the parameters of the photographic system and the atmosphere. As better photographic systems are developed, atmospheric effects give the ultimate limit to the quality of photography of the earth fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1f122d19cb1391727942af167d8965a
https://doi.org/10.1117/12.953442
https://doi.org/10.1117/12.953442
Publikováno v:
Atkinson, John H.; Hess, Wilmot N.; Perez-Mendez, Victor; & Wallace, Roger W.(1959). NEUTRON CROSS-SECTION MEASUREMENTS AT 4.5 Bev. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/42x4j2zp
The results of a series of measurements on the total and reaction cross sections for 4.5-Bev neutrons on carbon, copper, and lead are reported. The experimental arrangement and counters are illustrated. (W.D.M.)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::141df4c62b323274da4c1b4fe2fce33a
http://www.escholarship.org/uc/item/42x4j2zp
http://www.escholarship.org/uc/item/42x4j2zp
Publikováno v:
Optical Engineering. 6:060109
This paper reviews the mathematical basis for the selection of critical photographic variables. These general relationships are evaluated using information on atmospheric contrast transmittance and turbulence over a 20 mile path recently gathered by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49feaaf63e333799f3aa1831e3ad6bef
https://doi.org/10.1117/12.7971382
https://doi.org/10.1117/12.7971382
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