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  • About
  • 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.
1

Estudo de um metodo para calibrar e determinar a resolucao de espectrometros para neutrons lentos - Aplicacao num espectrometro de tempo de voo

AMARAL, LIA Q. do 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:35:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:27Z (GMT). No. of bitstreams: 1 00889.pdf: 3134519 bytes, checksum: e4d0967905dfa78327e9e8a750dc4f53 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
2

Sobre a Influencia da espessura finita das fontes nas linhas de conversao interna observadas em espectrometria beta

PECEQUILO, BRIGITTE R.S. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:25:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:02:19Z (GMT). No. of bitstreams: 1 00354.pdf: 1037275 bytes, checksum: 4c052d0ac5f1244dc7cb0cf28b96ea64 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
3

Estudo de um metodo para calibrar e determinar a resolucao de espectrometros para neutrons lentos - Aplicacao num espectrometro de tempo de voo

AMARAL, LIA Q. do 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:35:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:27Z (GMT). No. of bitstreams: 1 00889.pdf: 3134519 bytes, checksum: e4d0967905dfa78327e9e8a750dc4f53 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
4

Sobre a Influencia da espessura finita das fontes nas linhas de conversao interna observadas em espectrometria beta

PECEQUILO, BRIGITTE R.S. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:25:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:02:19Z (GMT). No. of bitstreams: 1 00354.pdf: 1037275 bytes, checksum: 4c052d0ac5f1244dc7cb0cf28b96ea64 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
5

Inversion matrix for a helium-3 fast-neutron spectrometer

Wang, Hsien-Tsan. January 1963 (has links)
Thesis (M.S.)--University of California, Berkeley, 1963. / "UC-34 Physics" -t.p. "TID-4500 (19th Ed.)" -t.p. Includes bibliographical references (p. 105).
6

Nova versao de espectrometro magnetico setorial para o estudo de eletrons de conversao interna em reacoes de captura

SUAREZ, ACHILLES A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:25:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:56:16Z (GMT). No. of bitstreams: 1 00295.pdf: 4244087 bytes, checksum: 9d7f4393a43870daecfe85d8677288c9 (MD5) / Tese (Doutoramento) / IEA/T / Universidade Estadual de Campinas - UNICAMP/SP
7

Standard and sample manipulation for calibration in flame atomic absorption spectrometry

Bysouth, Stephen R. January 1988 (has links)
This thesis describes a study of existing calibration methods and a comparison of them, with novel calibration and sample pre-treatment methods for flame atomic absorption spectrometry (FAAS) developed by the author. A comparison of commercially available curve fitting algorithms was carried out to show how concentration errors arise and vary, due to the use of different empirical models for the calibration curve. Novel online dilution manifolds were designed. Using flow injection and continuous flow techniques, different calibration procedures were developed to allow null methods of calibration to be used and to extend the calibration range. Methods of sample pre-treatment were developed, including online dissolution and species separation, using flow injection analysis techniques. Members of the atomic spectroscopy group of the Royal Society of Chemistry were surveyed to discover calibration practices used in commercial laboratories. Respondents were asked questions on sample type, treatment and presentation, and data reduction for calibration. During the research, several papers were published and lectures given on the topics described.
8

Determinacao da queima de elementos combustiveis do IEAR-1 pelo metodo nao destrutivo de espectrometria gama

SOARES, ADALBERTO J. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:25:54Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:04Z (GMT). No. of bitstreams: 1 00042.pdf: 2617963 bytes, checksum: 6f1e4a42512984f53057593bd143d05b (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
9

Medida da variacao natural da relacao D/H em amostras de agua

MATSUI, E. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:25:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:02:30Z (GMT). No. of bitstreams: 1 01272.pdf: 1663870 bytes, checksum: 36585130fb56868e0560fa884ac0d06f (MD5) / Dissertacao (Mestrado) / IPEN/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
10

Sobre o Minerio uranifero do Morro do Agostinho, Pocos de Caldas, MG, Brasil .Determinacao do uranio e apresentacao de um esquema para o aproveitamento do uranio e do molibdenio das suas lixivias, por troca ionica

MATSUDA, HARKO T. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:24:44Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:08Z (GMT). No. of bitstreams: 1 00298.pdf: 1654662 bytes, checksum: b2ff3701aaaebfceacb511671841ffbd (MD5) / Dissertacao (Mestrado) / IEA/D / Instituto de Energia Atomica

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