- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 10 of 245 (0.062 seconds)| 1 |
Phonon spectroscopy of iron-group impurity ions in gallium arsenideSahraoui-Tahar, M. January 1988 (has links)
No description available.
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Far infrared studies of III-V semiconductors structuresGrimes, Richard Thomas January 1990 (has links)
No description available.
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Development of anionic clays for water treatmentEngin, Guleda January 2000 (has links)
No description available.
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Determinacao espectrografica de menores constituintes em aco inoxidavelSABATO, SUSY F. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:03Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:56:06Z (GMT). No. of bitstreams: 1
01363.pdf: 907419 bytes, checksum: 885bb5e2ea74ebae7dd9dd5a5d958871 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Determinacao espectrografica de menores constituintes em aco inoxidavelSABATO, SUSY F. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:03Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:56:06Z (GMT). No. of bitstreams: 1
01363.pdf: 907419 bytes, checksum: 885bb5e2ea74ebae7dd9dd5a5d958871 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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A study of charge carrier transport in graphene nanoribbonsSmith, Christian W. 01 January 2010 (has links)
I measured the transport properties of graphene nanoribbons as a function of the charged impurity density in ultra-high vacuum to directly probe the effect of dimensional confinement. Coulomb impurities create charge puddles in graphene sheets, which dominate transport properties. My results shed light on recent predictions about the fundamental mechanisms behind gaps in conductance that appear in transport measurements.
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Vakansijų ir priemaišų difuzija sužadintuose Si kristaluose / Diffusion of vacancies and impurities in excited Si crystalsVasiliauskaitė, Irma 16 August 2007 (has links)
Baigiamąjį magistro darbą sudaro įvadas, 3 medžiagos dėstymo skyriai, pagrindinių rezultatų bei išvadų sąrašas, literatūros sąrašas. Įvade aprašytas temos aktualumas, tyrimo problemos, iškelta hipotezė, suformuluoti darbo tikslai ir uždaviniai. Pirmajame skyriuje aprašytos silicio kristalo savybės. Antrajame skyriuje apžvelgiamos pagrindinės difuzijos lygtys ir mechanizmai. Trečiajame skyriuje, remiantis bandinių elektrinio laidumo tyrimais bei teoriniu difuzijos sužadintose sistemose modeliu, rastos eksperimentinės vakansijų difuzijos koeficientų reikšmės. / This master work consists of introduction, 3 material enunciation chapters, basic results and conclusions list, literature list. In the introduction subject topicality, research problems and hypothesis are stated, work purposes and tasks are formulated. In chapter one features of the silicon mono-crystal are described. In chapter two basic diffusion equations and mechanisms are overviewed. In chapter three, with reference to samples’ electrical conductivity researches, experimental values of the vacancies diffusion coefficients are founded.
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Contribuicao ao estudo da influencia de impurezas e distribuicao do tamanho de particulas na sinterizacao e microestrutura da aluminaCASTANHO, SONIA R.H. de M. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:36:26Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:27Z (GMT). No. of bitstreams: 1
03872.pdf: 3194792 bytes, checksum: c608bc82f2dd8dcd16cb89209d801adc (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Determinacao espectrografica de impurezas gerais em matriz de tetrafluoreto de uranioREINO, LUIZ C. de P. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:29:09Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:02:58Z (GMT). No. of bitstreams: 1
01008.pdf: 794494 bytes, checksum: d63c1a441a7027bff0b1b37bc88c461b (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Contribuicao ao estudo da influencia de impurezas e distribuicao do tamanho de particulas na sinterizacao e microestrutura da aluminaCASTANHO, SONIA R.H. de M. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:36:26Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:27Z (GMT). No. of bitstreams: 1
03872.pdf: 3194792 bytes, checksum: c608bc82f2dd8dcd16cb89209d801adc (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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