968 resultados para semiconductor III-V material


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"The Sierra Cooperative Pilot Project, United States Department of the Interior, Bureau of Reclamation, Division of Research, Office of Atmospheric Resources Management, Denver, Colorado."

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Pages [iii]-v bound after p.ix.

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Vol. 5 (corrected numbering) was also reissued.

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"Complete bibliography of the legal periodicals of Luzerne and Lackawanna counties": p.[iii]-v.

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v. 1. Ortiz de Urbina, I. Nicée et Constantinople.--v. 2. Camelot, T. Ephèse et Chalcédoine.--v. 3. Murphy, F.-X.and Sherwood, P. Constantinople II and Constantinople III.--v. 4. Nicée II.--v. 5. Constantinople IV.--v. 6. Foreville, R. Latran I, II, III, et Latran IV.--v. 7. Lyon I et Lyon II.--v. 8. Lecler, J. Vienne.--v. 9. Gill, J. Constance et Bale-Florence.--v. 10. Latran V et Trente.--v. 11. Lecler, J. [et al.] Trente.--v. 12. Aubert, R. Vatican I.

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"September 1997."

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"August 1993."

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"Indice general" is included in "Cuarto Congreso científico (1° Pan-americano) ... Organización, actos solemnes, resultados generales ... ": p. [251]-266.

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"August 1995."

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Objective: To use the over-complete discrete wavelet transform (OCDWT) to further examine the dual structure of auditory brainstem response (ABR) in the dog. Methods: ABR waveforms recorded from 20 adult dogs at supra-threshold (90 and 70 dBnHL) and threshold (0-15 dBSL) levels were decomposed using a six level OCDWT and reconstructed at individual scales (frequency ranges) A6 (0-391 Hz), D6 (391-781 Hz), and D5 (781-1563 Hz). Results: At supra-threshold stimulus levels, the A6 scale (0-391 Hz) showed a large amplitude waveform with its prominent wave corresponding in latency with ABR waves II/III; the D6 scale (391-781 Hz) showed a small amplitude waveform with its first four waves corresponding in latency to ABR waves I, II/III, V, and VI; and the D5 scale (781-1563 Hz) showed a large amplitude, multiple peaked waveform with its first six waves corresponding in latency to ABR waves I, II, III, IV, V, and VI. At threshold stimulus levels (0-15 dBSL), the A6 scale (0-391 Hz) continued to show a relatively large amplitude waveform, but both the D6 and D5 scales (391781 and 781-1563 Hz, respectively) now showed relatively small amplitude waveforms. Conclusions: A dual structure exists within the ABR of the dog, but its relative structure changes with stimulus level. Significance: The ABR in the dog differs from that in the human both in the relative contributions made by its different frequency components, and the way these components change with stimulus level. (c) 2006 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.

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Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

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The early stages of nanoporous layer formation, under anodic conditions in the absence of light, were investigated for n-type InP with a carrier concentration of ∼3× 1018 cm-3 in 5 mol dm-3 KOH and a mechanism for the process is proposed. At potentials less than ∼0.35 V, spectroscopic ellipsometry and transmission electron microscopy (TEM) showed a thin oxide film on the surface. Atomic force microscopy (AFM) of electrode surfaces showed no pitting below ∼0.35 V but clearly showed etch pit formation in the range 0.4-0.53 V. The density of surface pits increased with time in both linear potential sweep and constant potential reaching a constant value at a time corresponding approximately to the current peak in linear sweep voltammograms and current-time curves at constant potential. TEM clearly showed individual nanoporous domains separated from the surface by a dense ∼40 nm InP layer. It is concluded that each domain develops as a result of directionally preferential pore propagation from an individual surface pit which forms a channel through this near-surface layer. As they grow larger, domains meet, and the merging of multiple domains eventually leads to a continuous nanoporous sub-surface region.

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Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

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El culto a la diosa Isis, de origen egipcio aunque helenizado a partir del dominio macedónico, se expande por el mundo grecorromano hasta abarcar un espacio geográfico muy amplio, como nunca antes había conocido. Los testimonios literarios que se refieren a él en época altoimperial son abundantes y de distinta naturaleza, desde descripciones precisas de elementos clave hasta escritos hostiles por parte de autores cristianos con una intencionalidad muy clara. El análisis pormenorizado de estos textos se antoja necesario si se quiere llegar a conocer el estado en el que se encuentra el culto isíaco en un período como el Alto Imperio.