Zobrazeno 1 - 10
of 137
pro vyhledávání: '"D.S. Phillips"'
Publikováno v:
Journal of Applied Ecology. 35:252-260
1. Alternative farming practices such as set-aside and agroforestry are likely to be of continuing interest to European agriculture but may have associated problems, such as increased populations of crop pests such as slugs. 2. A silvoarable agrofore
Autor:
Terry G. Holesinger, B. L. Sargent, K.V. Salazar, J. K. Bremser, J. O. Willis, D.S. Phillips, John F. Bingert, Dean E. Peterson
Publikováno v:
Journal of Materials Research. 11:28-38
A two-powder process is described for the production of uniform, fine-grained Bi2Sr2Ca2Cu3Oy (Bi-2223) powders. One powder is the Bi2.1−xPbxSr1.9−yCayOz (2:2 Cu-free) phase. The other is a multi-phase powder of approximate overall composition SrC
Autor:
J. O. Willis, D.S. Phillips, P.G. Wahlbeck, Dean E. Peterson, J.Y. Coulter, K.V. Salazar, Eric J. Peterson
Publikováno v:
Physica C: Superconductivity. 256:358-364
The superconducting phase with mixed Tl and Bi, namely (Tl0.55Bi0.45)Sr2CaCu2Oy, was synthesized and characterized. Synthesis conditions were studied, and this phase, (Tl,Bi)-1212, was found to form preferentially to (Tl,Bi)-1223 when Sr was present
Autor:
H. Schill, T. Nishimura, T. Inoué, M. Schnallinger, Beate Brand-Saberi, D.R. Rittenhouse, J.L. Sarrazin, S. Guizzardi, D.S. Phillips, P. Tangkawattana, Thomas Müller, Q. Zhi, S. Yamano, Ruijin Huang, Annette Neubüser, Ashraf Karkoura, W. Schweighart, N. Yamada, Anthony P. Russell, M. Panholzer, R. Strocchi, K. Takahashi, C. Gillot, H. Taniyama, G. Cosnard, Bodo Christ, J. Wilde, A.R. Sinning, Alessandra Ruggeri, O. Plaisant, Mario Raspanti, Jörg Wilting, Makoto Muto, Y. Kashima, C.C. Hewitt, A. Hattori, Mamoru Yamaguchi, Mahmoud Melling
Publikováno v:
Cells Tissues Organs. 155:I-IV
Publikováno v:
Biological Journal of the Linnean Society. 57:1-11
In spite of abundant evidence that intra- and inter-specific competition occurs in natural communities, there is surprisingly little to suggest it is a major force promoting genetic change. This report assesses the genetic effects of competition in t
Autor:
R. D. Ray, John F. Bingert, Terry G. Holesinger, D.S. Phillips, J. O. Willis, Dean E. Peterson, J. K. Bremser, K.V. Salazar
Publikováno v:
Journal of Electronic Materials. 24:1789-1792
The production of high critical current density Jc Bi-2223/Ag sheathed conductors is a complex process involving interactions among many different parameters. The effects of three factors: 1) powder production path, 2) the first sinter temperature, a
Autor:
Terry G. Holesinger, M. P. Maley, B.L. Bingham, D.S. Phillips, John F. Bingert, J.Y. Coulter, Hugo Safar, J.M. Johnson, Dean E. Peterson, J. L. Smith
Publikováno v:
Physica C: Superconductivity. 253:182-190
Isothermal melt processing (IMP) has been used to process oxide-powder-in-tube (OPIT) Bi2Sr2CaCu2Oy (Bi-2212) round wire with high critical current densities. Isothermal melt processing is a process in which the melting and solidification steps are c
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:1939-1942
The microstructure and phase assemblage of isothermal melt processed (IMP) Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/ (Bi-2212) thick films have been evaluated. Results from compositional analysis and phase identification indicate that the characteristics
Publikováno v:
Physica C: Superconductivity. 243:93-102
An alternative melt-processing technique has been developed for the fabrication of Bi 2 Sr 2 CaCu 2 O y (Bi-2212) thick films at temperatures over 100°C lower than those employed in conventional Bi-2212 melt processing. Isothermal melt processing co
Autor:
W. L. Hults, D.S. Phillips, Dean E. Peterson, J. O. Willis, J.Y. Coulter, M.G. Smith, John F. Bingert, K.V. Salazar
Publikováno v:
Physica C: Superconductivity. 231:409-415
An alternative two-powder process for the synthesis of superconducting (Bi,Pb)-2223/Ag clad wires by the powder-in-the-tube (OPIT) process is described. The first powder, of nominal stoichiometry Bi 1.8 Pb 0.4 Sr 2 CaCu 2 O 8 , is a mixture of (Bi,Pb