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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.
41

Uso da monitoracao ambiental como tecnica de identificacao de atividades de enriquecimento isotopico

BUCHMANN, JOSE H. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:44:34Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:57:11Z (GMT). No. of bitstreams: 1 06861.pdf: 8656275 bytes, checksum: 33d75be9bc7f27a315785b762567f56c (MD5) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
42

Modelagem dos parâmetros separativos de ultracentrífugas para enriquecimento de urânio através de modelos de redes neurais híbridas

CRUS, MARIA U. de L. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:49:59Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:54Z (GMT). No. of bitstreams: 1 10426.pdf: 5114704 bytes, checksum: f2e34599a45825529e31aaf79a169541 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
43

Desenvolvimento de um metodo de producao de sup(131) I pela tecnica de destilacao a seco do oxido de telurio irradiado

DIAS, LUIS A.P. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:45:54Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:35Z (GMT). No. of bitstreams: 1 07312.pdf: 3603508 bytes, checksum: 963e59f9eb3fb8b6959c554770d86544 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
44

Modelagem do desempenho separativo de ultracentrifugas por regressao multivariada com matriz de covariancia

MIGLIAVACCA, ELDER 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:48:58Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:51Z (GMT). No. of bitstreams: 1 09624.pdf: 7500503 bytes, checksum: 0fbfc877328a1063a37709866b6cefdc (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
45

Aplicacao de redes neurais para deteccao de erros grosseiros em dados de processo de separacao de isotopos de uranio por ultracentrifugacao

ANDRADE, MONICA de C.V. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:49:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:42Z (GMT). No. of bitstreams: 1 09628.pdf: 3653996 bytes, checksum: 64178443fa60d8cd4d92b9231d8df23b (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
46

Modelagem matematica do comportamento estatico e dinamico dos parametros operacionais de cascatas de separacao isotopica por ultracentrifugacao

PORTOGHESE, CELIA C.P. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:47:35Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:35Z (GMT). No. of bitstreams: 1 08365.pdf: 11054143 bytes, checksum: fbcba90b2c7b731c19fd9fe83143485d (MD5) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
47

Determinacao da queima em combustiveis nucleares irradiados pelo metodo do produto estavel de fissao Nd-148

SARKIS, JORGE E. de S. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:07Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:08:21Z (GMT). No. of bitstreams: 1 01401.pdf: 1718609 bytes, checksum: ca799d3b46a58c14d044a3c04abdcc29 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
48

Studies of Enzyme Mechanism Using Isotopic Probes

Chen, Cheau-Yun 08 1900 (has links)
The isotope partitioning studies of the Ascaris suum NAD-malic enzyme reaction were examined with five transitory complexes including E:NAD, E:NAD:Mg, E:malate, E:Mg:malate, and E:NAD:malate. Three productive complexes, E:NAD, E:NAD:Mg, and E:Mg:malate, were obtained, suggesting a steady-state random mechanism. Data for trapping with E:14C-NAD indicate a rapid equilibrium addition of Mg2+ prior to the addition of malate. Trapping with 14C-malate could only be obtained from the E:Mg2+:14C-malate complex, while no trapping from E:14C-malate was obtained under feasible experimental conditions. Most likely, E:malate is non-productive, as has been suggested from the kinetic analysis. The experiment with E:NAD:malate could not be carried out due to the turnover of trace amounts of malate dehydrogenase in the pulse solution. The equations for the isotope partitioning studies varying two substrates in the chase solution in an ordered terreactant reaction were derived, allowing a determination of the relative rates of substrate dissociation to the catalytic reaction for each of the productive transitory complexes. NAD and malate are released from the central complex at an identical rate, equal to the catalytic rate.
49

Studies on π-interactions in liquid phase separations / 液相分離におけるπ相互作用に関する研究

Kanao, Eisuke 27 July 2020 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第22701号 / 工博第4748号 / 新制||工||1742(附属図書館) / 京都大学大学院工学研究科材料化学専攻 / (主査)教授 大塚 浩二, 教授 松原 誠二郎, 教授 秋吉 一成 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM
50

Desenvolvimento de metodologias utilizadas nas áreas de salvaguardas e forense nuclear baseadas na técnica LA-HR-ICP-MS / Development of methodologies used in Safeguards and Nuclear Forensics based on LA-HR-ICP-MS technique.

MARIN, RAFAEL C. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:42:16Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:15Z (GMT). No. of bitstreams: 0 / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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