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排序方式: 共有146条查询结果,搜索用时 15 毫秒
111.
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G. Yu. Yurkov E. Devlin V. V. Panchuk V. G. Semenov V. V. Matveev I. V. Pleshakov 《Physics of the Solid State》2013,55(9):1946-1949
A composite representing a system of iron-based nanoparticles about 5 nm in size embedded in a high-pressure polyethylene matrix has been studied. The technology of preparation of this material has been described. The transmission electron microscopy, X-ray powder diffraction, and nuclear gamma-resonance spectroscopy data presented have been used to establish the volumes of the metal and oxide phases of a nanoparticle and the composition of its oxide shell. 相似文献
113.
D. Rudolph D.G. Sarantites C. Andreoiu C. Fahlander D.P. Balamuth R.J. Charity M. Devlin J. Eberth A. Galindo-Uribarri P.A. Hausladen D. Seweryniak L.G. Sobotka Th. Steinhardt 《The European Physical Journal A - Hadrons and Nuclei》2002,14(2):137-146
Prompt proton decay lines in 58Cu have been studied by means of high-resolution in-beam particle-γ coincidence spectroscopy using the GAMMASPHERE Ge-detector
array in conjunction with a dedicated set of ancillary detectors including four ΔE-E silicon-strip telescopes. High-spin states in 58Cu have been populated via the heavy-ion fusion-evaporation reaction 28Si(36Ar, 1α1p1n) at 148 MeV beam energy. The full-width at half maximum for the proton peak could be reduced significantly compared
to earlier experiments. The results indicate that only one prompt proton decay branch exists in the decay-out of the well-deformed
band of 58Cu.
Received: 11 March 2002 / Accepted: 10 April 2002 相似文献
114.
Klencsár Z. Vértes A. Németh Z. Kuzmann E. Homonnay Z. Kotsis I. Nagy M. Simopoulos A. Devlin E. Kallias G. 《Hyperfine Interactions》2003,148(1-4):117-127
Hyperfine Interactions - In the last decade the discovery of colossal magnetoresistance in Mn based perovskites brought various perovskite and spinel materials, displaying the effect of... 相似文献
115.
This article deals with a computationally efficient serial distributed arithmetic algorithm producing a device efficient field programmable gate array implementation. The proposed algorithm takes half the computations time as compared to the conventional symmetric algorithms. The algorithm is analyzed for a direct conversion transmitter of ionospheric radar. Matching and buffering criterion are used to reduce the arithmetic process. The algorithm can be extended to applications with similar characteristics, particularly for System On Chip (SOC) techniques. © 2005 Wiley Periodicals, Inc. Complexity 11: 24–29, 2005 相似文献
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Vibrational circular dichroism (VCD) spectra are reported for (+), (?) and (±) α-pinene, and (?) ß-pinine, isolated in argon matrices at ≈ 18 K. These are the first observations of VCD of matrix-isolated molecules. Spectra are limited to the CH stretching region (2800–3100 cm?1). In all cases, the VCD spectra are substantially more structured than the corresponding room-temperature spectra, as a result of much narrower linewidths. Further, VCD magnitudes are greater due to decreased cancellation of overlapping transitions with oppositely signed VCD. The largest anisotropy ratios observed are >5 × 10?4 and are larger than any reported for room-temperature solutions of organic molecules. This technique will permit substantially more definitive evaluations of theoretical calculations of VCD. 相似文献
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Abe F Amidei D Apollinari G Ascoli G Atac M Auchincloss P Baden AR Barbaro-Galtieri A Barnes VE Bedeschi F Behrends S Belforte S Bellettini G Bellinger J Bensinger J Beretvas A Berge P Bertolucci S Bhadra S Binkley M Blair R Blocker C Bofill J Booth AW Brandenburg G Brown D Byon A Byrum KL Campbell M Carey R Carithers W Carlsmith D Carroll JT Cashmore R Cervelli F Chadwick K Chapin T Chiarelli G Chinowsky W Cihangir S Cline D Connor D Contreras M Cooper J Cordelli M Curatolo M Day C DelFabbro R 《Physical review letters》1989,62(16):1825-1828