Zobrazeno 1 - 10
of 38
pro vyhledávání: '"W. F. Lankford"'
Autor:
Laura S Brown, W. F. Lankford
Publikováno v:
Nature. 521:284-285
Autor:
J. E. Crow, R. S. Cary, W. J. Kossler, A. Greer, M. R. Davis, J. Oostens, W. F. Lankford, C. E. Stronach, H. E. Schone, X. H. Yu
Publikováno v:
Hyperfine Interactions. 63:81-86
Transverse and zero-field μSR measurements were made on YBa2(Cu1−xNix)3O7−y withx=0.1 and 0.2, and YBa2(Cu1−xZn x )3O7−y withx=0.03, 0.06, 0.1, and 0.16, wherey≈0.1. Since doping may lead to magnetic ordering this was searched for with bot
Autor:
W. F. Lankford, R. S. Cary, M. R. Davis, A. R. Moodenbaugh, H. E. Schone, J. Oostens, X. H. Yu, W. J. Kossler, A. Greer, C. E. Stronach
Publikováno v:
Hyperfine Interactions. 63:253-258
Transverse-and zero-field μSR measurements have been made for YBa2(Cu1−x Fe x )3O7 withx=0.04, 0.08 and 0.12. The temperature range studied was from approximately 7.5 K to 100 K. The onset of magnetic ordering commences at about 7.5 K forx=0.04, 1
Autor:
W. F. Lankford, Daniel M. Kammen
Publikováno v:
Solar & Wind Technology. 7:463-471
Two box-type solar ovens were performance tested under various measured solar intensity conditions. One oven was the Kerr-Cole Eco-cooker assembled from a prefabricated cardboard kit. The second model was made of plywood and involved more elaborate c
Autor:
Daniel M. Kammen, W. F. Lankford
Publikováno v:
Nature. 348:385-386
'Appropriate technology' is touted as a solution to many of the energy needs of developing countries. A pi lot project to introduce solar ovens in Central America shows one way forward.
Autor:
Daniel M. Kammen, W. F. Lankford
Publikováno v:
Nature. 351:21-21
KAMMEN AND LANKFORD REPLY -Jagadeesh's letter is similar to several that we have received in response to our article. It describes technically sophisticated designs for solar cookers that will achieve higher temperatures than our simple box-cooker. T
Autor:
H.E. Schone, J. J. Reilly, K. G. Petzinger, C. E. Stronach, W. J. Kossler, W. F. Lankford, B. Hitti, J. R. Kempton, E. F. W. Seymour
Publikováno v:
Hyperfine Interactions. 31:235-240
Low temperature sites for muons implanted in TiHx have been found to be a mixture of interstitial and substitutional sites, with substitutional occupancy determined by the probability that a muon in an interstitial site will have a vacant nearest nei
Autor:
J Kossler, D. Joyce, B. J. Lieb, V. G. Lind, H S Plendl, O Funsten, C E Stronach, W. F. Lankford
Publikováno v:
Journal of Physics G: Nuclear Physics. 10:1249-1267
Spectra of gamma rays in coincidence with incident stopped pi -, 220 MeV pi -, and 180 MeV pi + were taken with 23Na and natural S targets. Spectra were also taken with incident 180 MeV pi + and 220 MeV pi - for a 31P target. The cross sections of a
Publikováno v:
Hyperfine Interactions. 3:287-295
Precession of polarized positive muons is used to probe internal magnetic fields in a polycrystalline sample of high purity chromium. A depolarization, or damping in time, of the precession oscillation is observed in the antiferromagnetic states betw
Autor:
W. F. Lankford, X. H. Yu, A. Schenck, Yoshichika Ōnuki, H. E. Schone, Tetsuro Komatsubara, Yasutomo J. Uemura, W. J. Kossler, C. Baines, J. R. Kempton, B. Hitti, S. Barth, C. E. Stronach, F. N. Gygax
Publikováno v:
Physical Review B. 39:4726-4729
Zero- and longitudinal-field muon-spin-relaxation measurements on a heavy-fermion system ${\mathrm{CeCu}}_{2.1}$${\mathrm{Si}}_{2}$ have revealed an onset of static magnetic ordering below ${T}_{M}$\ensuremath{\sim}0.8 K, which coexists with supercon