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71.
72.
H. W. Gonell A. Blackie N. E. Edlefsen E. Kahane S. W. Parr P. F. Thompson C. W. Correns J. R. Bailey R. E. Remington J. F. Mc Clendon H. von Kolnitz R. G. Turner Minna Z. Weeks G. P. Baxter E. R. Bishop C. B. Dollins H. Starke K. Højendahl R. Jacquemain E. A. Werner E. André A. Oká H. T. S. Britton und B. M. Wilson 《Fresenius' Journal of Analytical Chemistry》1934,98(7-8):259-266
Ohne Zusammenfassung 相似文献
73.
Bishop SR Clemens JB Chagarov EA Shen J Kummel AC 《The Journal of chemical physics》2010,133(19):194702
Ordered, low coverage to monolayer, high-κ oxide adsorption on group III rich InAs(0 0 1)-(4×2) and In(0.53)Ga(0.47)As(0 0 1)-(4×2) was modeled via density functional theory (DFT). Initial adsorption of HfO(2) and ZrO(2) was found to remove dangling bonds on the clean surface. At full monolayer coverage, the oxide-semiconductor bonds restore the substrate surface atoms to a more bulklike bonding structure via covalent bonding, with the potential for an unpinned interface. DFT models of ordered HfO(2)/In(0.53)Ga(0.47)As(0 0 1)-(4×2) show it fully unpins the Fermi level. 相似文献
74.
Michael M. Bishop Leonard F. Lindoy Michael M. Bishop Oliver T. Thorn‐Seshold Ross O. Piltz Peter Turner 《Journal of heterocyclic chemistry》2001,38(6):1377-1382
A supramolecular assembly formed between phthalimide and 2‐guanidinobenzimidazole, containing a short 2.692(4)AR N‐H…N hydrogen bond, is reported. The crystal structure of this species was determined by both X‐ray and neutron diffraction. The diffraction data reveal that the proton involved in the short hydrogen bond has been transferred from the phthalimide to the guanidinobenzimidazole to form an ion pair. There is also an interesting stacking interaction between the atoms involved in the short hydrogen bond and the π system of a phthalimide molecule that is approximately 3.3 Å away. The structure is compared with the structure of a similar assembly formed between 4‐nitrophthalimide and 2‐guanidinobenzimidazole. 相似文献
75.
W. Bishop und E. Millian 《Fresenius' Journal of Analytical Chemistry》1890,29(1):724-725
Ohne Zusammenfassung 相似文献
76.
Direct measurements of the in-plane London penetration depth λ L have recently been performed on high-temperature superconducting copper oxides by a new low-energy muon spin rotation technique. The results show that λ L is isotope dependent, evidencing unconventional electron–phonon interactions as its source. The data are interpreted here in terms of polaronic effects on the single-particle energies, which leads to level shifts and exponential band narrowing. Good agreement with the experimental data is obtained. 相似文献
77.
78.
E. D. Minor T. A. Armstrong R. Bishop V. Harris R. A. Lewis G. A. Smith 《Zeitschrift für Physik A Hadrons and Nuclei》1990,336(4):461-468
The momentum spectra of charged pions following antiproton annihilation at rest in carbon and uranium have been measured. This information complements our previous measurement of the neutral pion spectra. The total charged pion multiplicity is 2.84±0.10 and 2.47±0.09 for carbon and uranium, respectively, in good agreement with recent INC model predictions of 2.96 and 2.48 for the same quantities. However, structures predicted by the model near 200 MeV/c and 300 MeV/c related to delta-resonance production are not seen in the data. The total energy transfers to the nucleus are calculated to be 119±59 MeV(carbon) and 455±50 MeV(uranium). The possibility of exciting multifragmentation with a¯p beam impinging on heavy nuclei is discussed. 相似文献
79.
D. Izzo V. M. Becerra D. R. Myatt S. J. Nasuto J. M. Bishop 《Journal of Global Optimization》2007,38(2):283-296
We introduce and describe the Multiple Gravity Assist problem, a global optimisation problem that is of great interest in
the design of spacecraft and their trajectories. We discuss its formalization and we show, in one particular problem instance,
the performance of selected state of the art heuristic global optimisation algorithms. A deterministic search space pruning
algorithm is then developed and its polynomial time and space complexity derived. The algorithm is shown to achieve search
space reductions of greater than six orders of magnitude, thus reducing significantly the complexity of the subsequent optimisation.
This work was partially funded under the Ariadna scheme of the European Space Agency, contract number 18138/04/NL/MV. 相似文献
80.
We consider several results, each of which uses some type of “L
2” estimate to provide information about harmonic measure on planar domains. The first gives an a.e. characterization of tangent
points of a curve in terms of a certain geometric square function. Our next result is anL
p
estimate relating the derivative of a conformal mapping to its Schwarzian derivative. One consequence of this is an estimate
on harmonic measure generalizing Lavrentiev’s estimate for rectifiable domains. Finally, we considerL
2 estimates for Schwarzian derivatives and the question of when a Riemann mapping ϕ has log ϕ′ in BMO.
Supported in part by NSF Grant DMS-91-00671.
Supported in part by NSF Grant DMS-86-025000. 相似文献