Relevant bibliographies by topics / 13c rmn

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic '13c rmn'

Author: Grafiati
Published: 7 July 2024
Last updated: 31 July 2025

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Journal articles on the topic "13c rmn"

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Torpoco Carmen, Virginia, and Juan Garbarino Bacigalupo. "ESTUDIOS DE HONGOS CHILENOS I: METABOLITOS EN RAMARIA FLACCIDA (FR.) RICKEN VAR. CHILENSIS LAZO." Revista Cientifica TECNIA 22, no. 1 (2017): 65. http://dx.doi.org/10.21754/tecnia.v22i1.91.

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De los cuerpos fructíferos de Ramaria flaccida (Fr.) Ricken var. chilensis Lazo, se aislaron ergosterol y peroxiergosterol, además de los ácidos mirístico, palmítico, esteárico, oleico, linoleíco y linólenico. Las estructuras de estos metabolitos fueron determinadas mediante análisis espectroscópicos Masas, RMN 1H y RMN 13C. Palabras clave.- Metabolitos, Ergosterol, Acidos grasos. ABSTRACTFrom fruit bodies of Ramaria flaccida (Fr.) Ricken var. chilensis Lazo, were isolated ergosterol, peroxiergosterol, as well as myristic, palmitic, stearic, oleic, linoleic and linoleic acids. Structures of th
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Muñoz-Cendales, Diego Ricardo, Luis Enrique Cuca-Suárez, and Clara Inés Orozco P. "Aislamiento y estructura de algunos metabolitos secundarios de <i>Solanum validinervium (solanaceae)</i> sección geminata." Actualidades Biológicas 27, no. 1 (2018): 49–52. http://dx.doi.org/10.17533/udea.acbi.331552.

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A partir de extracto etanólico de la parte aérea de Solanum validinervium y se aisló el compuesto 2-(4'-hidroxifenil)-etanol y las cumarinas esculetina e isoescopoletina. Sus estructuras fueron elucidadas por medio de técnicas espectroscópicas (IR y RMN-1 H, RMN-13C en una y dos dimensiones).
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Gelboke, M., T. Blondiau, B. Kone, G. Lagrange, and R. Grimé. "Spectres RMN-1H Et -13C De Morpholines Et Thiomorpholines." Bulletin des Sociétés Chimiques Belges 93, no. 5 (2010): 369–78. http://dx.doi.org/10.1002/bscb.19840930504.

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Coelho Guimarães, Camila, Vivianni Marques Leite dos Santos, and Juliana Angeiras Batista da Silva. "Estudo teórico de propriedades espectroscópicas de ressonância magnética nuclear 1H-RMN, 13C-RMN e 17O-RMN relativas à qualidade do biodiesel." Ciência & Engenharia 25, no. 1 (2016): 43–48. http://dx.doi.org/10.14393/19834071.2016.22805.

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Canellas, L. P., G. A. Santos, A. A. Moraes, V. M. Rumjanek, and F. L. Olivares. "Avaliação de características de ácidos húmicos de resíduos de origem urbana: I. métodos espectroscópicos (UV-Vis, IV, RMN 13C-CP/MAS) e microscopia eletrônica de varredura." Revista Brasileira de Ciência do Solo 24, no. 4 (2000): 741–50. http://dx.doi.org/10.1590/s0100-06832000000400006.

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Foram caracterizados fisico-quimicamente ácidos húmicos, obtidos de composto de resíduos sólidos urbanos (AH-CRSU) e de lodo de estação de tratamento de esgoto (AH-LETE), ambos produzidos na cidade do Rio de Janeiro, por meio da análise da composição elementar, acidez total, de dados espectroscópicos (UV-Vis; IV, RMN de 13C-CP/MAS) e microscopia eletrônica de varredura (MEV). A análise das características estruturais revelou diferenças entre os AHs estudados. A presença de sistemas aromáticos foi observada por meio da espectroscopia de UV-Vis, indicando sistemas mais substituídos nos AH-LETE.
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Trilleras, Jorge, Karen Feria, Daniel Alcazar, Jairo Quiroga, Manuel Nogueras, and Justo Cobo. "Síntesis multicomponente y caracterización de derivados pirimido [4,5-b] quinolínicos con evaluación de la actividad antileishmania." Revista Colombiana de Ciencias Químico-Farmacéuticas 46, no. 1 (2017): 5–17. http://dx.doi.org/10.15446/rcciquifa.v46n1.67286.

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A partir de 6-amino-3-metil-2-(metiltio)pirimidin-4(3H)-ona, aldehídos aromáticos y benzoquinona, por medio de una reacción de ciclodeshidratación de Michael asistida por radiación de microondas, se realizó la síntesis y caracterización de la serie de derivados tricomponentes pirimido[4,5-b]quinolínicos, y se evaluó la posible actividad antileishmania. Los nuevos compuestos se caracterizaron por análisis espectroscópico de IR, RMN 1H, RMN 13C y MS.
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Vélez-Guzmán, Daniel F., Paula A. Charry-Sánchez, Jhon F. Castañeda-Gómez, and Eunice Ríos-Vásquez. "Fitoesteroles de las partes aéreas de Ipomoea trifida (convolvulaceae)." Boletín Científico Centro de Museos Museo de Historia Natural 27, no. 2 (2023): 31–47. http://dx.doi.org/10.17151/bccm.2023.27.2.2.

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Objetivo: Aislar e identificar los fitoesteroles mayoritarios presentes en la especie vegetal Ipomoea trífida a través de diversas técnicas cromatográficas, técnicas espectroscópicas de resonancia magnética nuclear (RMN) y espectrometría de masas (EM). Metodología: Las partes aéreas de Ipomoea trifida fueron colectadas en la vereda La Concha, municipio de Circasia, Colombia. Luego, se secaron, pulverizaron y maceraron con hexano para el fraccionamiento y purificación de dos esteroles mayoritarios por cromatografía de columna. Las estructuras se elucidaron por técnicas de RMN y espectrometría d
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Bonnet, A., G. Barre, and P. Gilard. "« Trinoyaux ». Détermination des structures par RMN 1H, 13C et 15N." Journal de Chimie Physique 92 (1995): 1823–28. http://dx.doi.org/10.1051/jcp/1995921823.

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Ceroni Galloso, Mario, Jorge Reynaldo Angulo-Cornejo, Maria Nieves Lino-Pacaheco, Claudia Cecilia Villanueva Huerta, and Enzo Martín Casimiro Soriano. "Synthesis and characterization of mixed-ligand silver(I) saccharinate complex containing (2-(2-pyridyl)benzimidazole." Revista Colombiana de Química 47, no. 2 (2018): 73–78. http://dx.doi.org/10.15446/rev.colomb.quim.v47n2.68225.

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Se sintetizó un nuevo compuesto de coordinación de plata, [Ag(sac)(pbi)], por reacción de sacarinato de plata(I) con 2-(2-piridil)bencimidazol (pbi) con un rendimiento de 64%. La caracterización se realizó por análisis elemental, espectroscopia IR, UV-Visible, XPS, 1H-RMN y 13C-RMN. De acuerdo con los resultados obtenidos la plata está coordinada a través de tres átomos de nitrógeno, uno del sacarinato y los dos restantes del 2-(2-piridil)-bencimidazol formando con este ligando un anillo quelato de cinco miembros.
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RANGEL, SAMUEL, GÉNESIS FALCÓN, and GUSTAVO CABRERA. "COMPARACIÓN ENTRE DIFERENTES NIVELES DE TEORÍA Y BASES PARA EL CÁLCULO DE DESPLAZAMIENTOS QUÍMICOS DE RMN13C DE ANDROSTANOS. PARTE II." SABER 35 (August 8, 2023): 92–95. https://doi.org/10.5281/zenodo.15171460.

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<strong>RESUMEN</strong>En un trabajo anterior se presentaron los resultados de una comparaci&oacute;n de tres modelos te&oacute;ricos que permitanpredecir espectros RMN 13C. Se us&oacute; como nivel de teor&iacute;a DFT, tres funcionales: B3LYP, MPW1PW91 yBHandHLYP, con las funciones bases 6-311G(d,p) y 6-311++G(d,p) y el programa Gaussian 09 como herramienta dec&aacute;lculo computacional. El estudio se llev&oacute; a cabo con diecis&eacute;is androstanos y se encontr&oacute; como mejor modelo dec&aacute;lculo la combinaci&oacute;n BHandHLYP/ 6-311G++(d,p). En este trabajo se evalu&oacute; e
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Dissertations / Theses on the topic "13c rmn"

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Faccione, Milton. "Sintese e RMN-13C de lactonas arildiidronaftalenicas e ariltetraidronaftalenicas." [s.n.], 1986. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249826.

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Orientador :Sebastião Ferreira Fonseca<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-14T12:45:07Z (GMT). No. of bitstreams: 1 Faccione_Milton_M.pdf: 4258788 bytes, checksum: a52ff5ddb1968149613193d50b8f2568 (MD5) Previous issue date: 1986<br>Mestrado
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Schahl, Adrien. "Interactions polysaccharides-lipides : étude théorique et expérimentale combinant calculs de dynamique moléculaire, calculs quantiques de spectres RMN 13C et RMN 13C à l'état solide." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30178.

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Les interactions entre polysaccharides et lipides forment aujourd'hui un vaste domaine d'étude, présentant notamment un intérêt particulier pour les industries alimentaires et pharmaceutiques. Nous savons que l'amylose, un polysaccharide composé de résidus glucose branchés en [apha 1→4] essentiellement linéaire, peut encapsuler de petites molécules hydrophobes formant ce qu'on appelle un polymorphe V. L'étude de ce type de complexes pourrait permettre de développer de nouvelles voies de formulations de substances bioactives ou de nouveaux adjuvants de vaccins. Ce type d'interactions pourraient
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Carneiro, Paulo Irajara Borba. "Sobre a natureza do efeito alfa em RMN de 13C." [s.n.], 1988. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249187.

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Orientador : Roberto Rittner Neto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-14T12:26:39Z (GMT). No. of bitstreams: 1 Carneiro_PauloIrajaraBorba_M.pdf: 10677684 bytes, checksum: 769dab11743f6cff2835522e861c52d9 (MD5) Previous issue date: 1988<br>Mestrado
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Bayle, Kevin. "Développements méthodologiques RMN 13C isotopique pour l'étude de voies métaboliques." Nantes, 2014. https://archive.bu.univ-nantes.fr/pollux/show/show?id=30bc90dd-d09e-4983-ac96-8f8ae6202686.

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Le but de l’étude menée au cours du travail de thèse a été la détermination d’effets isotopiques associés à trois voies métaboliques (Embden-Meyerhof-Parnas, Entner-Doudoroff et phosphocétolase) par le biais de fermentations de micro-organismes et levures effectuant la biotransformation du glucose en éthanol et acide lactique. Dans un premier temps, une réflexion a été menée sur les paramètres analytiques nécessaires à l’analyse d’acides carboxyliques par RMN 13C isotopique. Les questionnements soulevés par l’analyse de l’acide acétique ont amené à élargir l’étude et prendre en compte une gamm
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Schneider, Michel. "Informatisation des techniques de calcul des déplacements chimiques en RMN 13C." Metz : Université Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/1984/Schneider.Michel.SMZ8407.pdf.

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Gasmi, Geneviève. "Developpement de nouvelles sequences d'impulsions en rmn : etude du nosiheptide (antibiotique cyclopeptidique) par rmn 1h, 13c, 15n." Reims, 1993. http://www.theses.fr/1993REIMP204.

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Ferreira, Marcelo José Pena. "Análise espectral, geração de estrutura e simulação de dados de RMN 13C." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-20032018-142649/.

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O sistema especialista SISTEMAT tem por objetivo auxiliar pesquisadores da área de produtos naturais no processo de determinação estrutural de substâncias. Para tanto, utilizando dados provenientes de várias técnicas espectrométricas e espectroscópicas, principalmente RMN 13C, inúmeros programas foram desenvolvidos com a finalidade de propor o provável esqueleto de uma substância. Essa informação, juntamente com as substruturas apresentadas a partir de um conjunto de dados, é utilizada por geradores estruturais como grandes restrições, a fim de impedir a explosão combinatória e a geração de pr
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Silva, Junior Milton Marques da. "Estudo do efeito ALFA de grupos fenila p-substituidos em RMN de 13C." [s.n.], 1992. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249184.

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Orientador : Roberto Rittner Neto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-14T02:10:17Z (GMT). No. of bitstreams: 1 SilvaJunior_MiltonMarquesda_M.pdf: 5663001 bytes, checksum: d7ac8cc68848c1766b97cfe1f5445fd1 (MD5) Previous issue date: 1992<br>Mestrado
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Caytan, Elsa. "Détermination de la distribution intramoléculaire du 13C en abondance naturelle par RMN quantitative." Nantes, 2006. http://www.theses.fr/2006NANT2034.

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Les conditions expérimentales pour la détermination de la distribution intramoléculaire du 13C par RMN quantitative ont été étudiées. Dans un premier temps, des molécules doublement marquées 13C sont utilisées comme outil pour évaluer les performances des méthodes d'analyse (justesse, précision). Deux stratégies sont ensuite proposées pour la réduction de la durée de l'analyse : L'emploi d'un agent relaxant permet de diminuer le temps de répétition, et l'utilisation de la séquence à transfert de polarisation INEPT permet une meilleure sensibilité. L'effet des imperfections des impulsions RF su
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Bailac, Laura. "Composés organiques fluorés : Étude par RMN multinoyaux {1H, 13C, 19F} et calculs DFT." Rouen, 2016. http://www.theses.fr/2016ROUES008.

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Depuis plus de 40 ans, les composés fluorés sont en plein essor dans le milieu pharmaceutique, le diagnostic, la chimie agro-alimentaire et les matériaux polymères. La connaissance de la structure 3D de ces composés peut s'avérer importante notamment dans le cas d'étude d'interactions entre molécules. La RMN est un outil de choix pour la caractérisation structurale de produits de synthèse et de composés naturels. De plus, le fluor 19 possède des propriétés magnétiques remarquables qui en font une sonde intéressante pour la caractérisation structurale par RMN de composés organiques fluorés. Au
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Books on the topic "13c rmn"

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Kuhn, Darl, Sam Alapati, and Arup Nanda. RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8.

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Cheng, Xiaodong, Zixiong Li, and Zhaoming Liu. Qian nü you hun II: Ren jian dao : A Chinese ghost story II, the story continues. Media Asia, 1993.

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Yang, Wang, ed. Zhuan dong ren sheng xi wang de 136 ge bei tai. Zhong jing she, 2003.

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zhi, Shan. Jing ming ren ban shi de 135 ge xiao ji qiao. Zhong guo hua qiao chu ban she, 2007.

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"Nong shi san shi Hong xing si chang jian shi" bian zuan wei yuan hui. Nong shi san shi Hong xing si chang jian shi. Xinjiang sheng chan jian she bing tuan chu ban she, 2012.

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Li, Jia'an. Nong yi shi shi san tuan zhi. Xinjiang ren min chu ban she, 1997.

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Hart, Matthew (Matthew Sheridan), author, ed. Oracle database 12c Oracle RMAN backup and recovery. McGraw Hill, 2016.

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Ren jian ren ai! mei nü hua ti fa xing 136 kuan. Ba fang chu ban gu fen you xian gong si, 2011.

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Rman Recipes For Oracle Database 12c A Problemsolution Approach. APress, 2013.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. RMAN Recipes for Oracle Database 12c: A Problem-Solution Approach. Springer, 2013.

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Book chapters on the topic "13c rmn"

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Kuhn, Darl. "Configuring RMAN." In Pro Oracle Database 12c Administration. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-5729-5_17.

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Malcher, Michelle, and Darl Kuhn. "Configuring RMAN." In Pro Oracle Database 18c Administration. Apress, 2019. http://dx.doi.org/10.1007/978-1-4842-4424-1_17.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "Tuning RMAN." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_16.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "Troubleshooting RMAN." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_17.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "Using RMAN." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_4.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "Scripting RMAN." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_9.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "Jump-Starting RMAN." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_2.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "RMAN and RAC." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_23.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "RMAN and ASM." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_24.

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Kuhn, Darl, Sam Alapati, and Arup Nanda. "RMAN in Exadata." In RMAN Recipes for Oracle Database 12c. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-4837-8_25.

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Conference papers on the topic "13c rmn"

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Paul, Shiladitya. "Performance of API 5L X65 in 138 MPa Supercritical CO2." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18863.

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Abstract This paper reports the performance of welded API 5L X65 in an aqueous solution pressurized with 138 MPa supercritical CO2. Welded API 5L X65 carbon steel specimen was prepared and exposed to 3.5 wt.% NaCl solution pressurised with 138MPa CO2. The sample was stressed to 100% of 0.2% proof stress using a four-point method. The specimen were extracted transverse to the weld and was tested with the weld root in tension. The test ran at 40°C for 30 days. Post-test visual examination indicated a scale on the surface which was confirmed by microstructural characterization. The SEM micrograph
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Rautert, Janina, Mikhail S. Buyalo, Vladimir Mikhrin, et al. "Ultra-Wideband, Flat-Top, 100 GHz Spacing Quantum-Dot Comb Laser for CW-WDM Data Transmission in O-Band." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.th4d.3.

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We present a 24-channel, continuous-wave O-band quantum-dot comb laser with 100 GHz spacing, -133 dB/Hz averaged RIN (in 0 - 10 GHz range) per channel, and 40 mW total power. 106 Gb/s/channel PAM4 transmission is verified with BER below the KP4 FEC limit.
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Valdez, Martin, Claudio Morales, Jazmin Poliseno, et al. "Evaluation of Various Downhole Materials under Simulated CCUS Environments - Supercritical Co2 with Impurities - and Comparison of Different Experimental Techniques." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00035.

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Abstract The underground storage of supercritical CO2 could be critical for the integrity of downhole materials, especially in the presence of liquid water during shut-in or due to condensation. The evaluation of suitable materials for such applications is complex due to long-term exposure, the lack of standardized test, as well as the presence of impurities in the CO2 stream can modify (expand) the type of corrosive species to be considered in comparison with typical environments in oil &amp; gas production. In this paper, we summarized the efforts to understand the relative performance of 13
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Dugstad, Arne, Malgorzata Halseid, Bjørn Morland, and Anne Olaug Sivertsen. "Dense Phase CO2 Corrosion and the Impact of Depressurization and Accumulation of Impurities." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02785.

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Abstract When dense phase CO2 is depressurized and forms a two phase gas/liquid system, impurities will partition between the two phases and go preferentially to the phase where their solubility is highest. Partitioning and depressurization experiments run at 4 and 25 °C showed that water, H2S and SO2 accumulated while O2 was depleted in the remaining liquid CO2 phase when the system was depressurized via the gas phase. The experiments also showed that a separate aqueous phase could form in addition to the gaseous and liquid CO2 phases. The accumulation of impurities increased the corrosivity
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Cardoso, Evani Ferreira, Rodrigo de Souza Miranda, Roberto Carlos Campos Martins, Gunar Vingre da Silva Mota, Antônio Maia de Jesus Chaves Neto, and Fábio Luiz Paranhos Costa. "Uso de Cálculos de RMN de 13C e 1H e Redes Neurais no Auxilio da Determinação Estrutural da Savinina." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol2020178.

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This is a theoretical-experimental work, where the focus molecule of the study is savinine, a lignan of the dibenzylbutyrolactonic type, substances that can be found in several genera, one of which has a greater occurrence is the genus Acanthopanax (Araliaceae) which is traditionally used as an analgesic and immune system stimulant, in addition to exhibiting a potent insecticidal and cytotoxic activity for human colon carcinoma HCT116 cells. It was isolated and here we present its experimental and theoretical characterization by means of 13C and 1H NMR data and the possible confirmation of the
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Braga, Bárbara Luiza Duarte, Felipe De Castro Santana, Glaucia Souza Barbosa, Ludmyla Marques Ferreira, and Hugo De Farias Ramalho. "ESTUDO PRELIMINAR DA MODIFICAÇÃO QUÍMICA DO EUGENOL PARA POTENCIALIZAÇÃO DE ATIVIDADE ANTIMICROBIANA." In III Congresso Brasileiro de Ciências Farmacêuticas On-line. Revista Multidisciplinar em Saúde, 2022. http://dx.doi.org/10.51161/conbracif/30.

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Introdução: As importações de fármacos e insumos farmacêuticos, criam um cenário de dependência nacional da indústria farmacêutica estrangeira. Diante disto, torna-se necessária a produção de novos compostos em laboratório. Uma possível solução pode estar no desenvolvimento de novos materiais de origem renovável, oriundos da biomassa, como por exemplo o Eugenol (molécula mais abundante e reativa do óleo essencial de cravo da índia - Syzygium aromaticum). Tendo em vista a atividade antimicrobiana preexistente da molécula do Eugenol. Objetivo: Este trabalho teve como objetivo potencializar essa
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Wernehag, Johan, and Henrik Sjoland. "Second harmonic 60-GHz power amplifiers in 130-nm CMOS." In 2007 Ph.D Research in Microelectronics and Electronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/rme.2007.4401833.

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Wen-Chieh Wang and Chung-Yu Wu. "The 1-V 24-GHz low-voltage low-power current- mode transmitter in 130-nm CMOS technology." In 2007 Ph.D Research in Microelectronics and Electronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/rme.2007.4401808.

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Alves, Geomar Souza, Fábio Luiz Paranhos Costa, Antônio Maia de Jesus Chaves Neto, and Gunar Vingre da Silva Mota. "Análise de RMS de 13C usando GIAO, CSGT e IGAIM: Fatores de escalonamentos de Terpenos." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol2020153.

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Terpenes are natural products that have several biological and pharmacological properties that are directly related to their chemical structures. In the structural determination of organic molecules, Nuclear Magnetic Resonance (NMR) is used on a large scale. The chemical shift (δ) being the most important parameter. The present study aims to develop and test (the elemol molecule will be used for this purpose) δ scaling factors from 13C to terpenes, based on linear regressions. 10 complex sesquiterpene molecules were selected with the unmistakably determined structures (confirmed with X-ray cry
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Huang, Huan, Jie Peng, Xiaowen Wang, Chongfu Zhang, and Kun Qiu. "Optically Centralized Beamforming for MmWave Cloud RAN Systems: Impact of Beam Alignment." In Asia Communications and Photonics Conference. OSA, 2021. http://dx.doi.org/10.1364/acpc.2021.t4a.133.

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Reports on the topic "13c rmn"

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Drees A. Analysis of Vernier Scans during RHIC Run-13. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1104828.

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Jelen, Deborah, and Jean-Francois Gravel. DTPH56-13-T-000003 INO Technologies Assessment of Leak Detection. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0012054.

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Current leak detection systems for pipelines are not only unreliable in the detection of minute leaks but often expensive and/or dangerous to run. This is an unacceptable standard for pipeline operators and leak detection service providers. Electricore, Inc., and INO with support from TransCanada and National Scientific Research Institute (INRS/RDDC) conducted a new research effort consisting of the development of a transportable leak detection system (LDS) demonstrating the ability to externally locate, identify, and assess small liquid and gaseous leaks (weeper/seepers) from a safe standoff
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Alansari, Mohamed, Cathy Wylie, Rose Hipkins, Sinead Overbye, Renee Tuifagalele, and Sophie Watson. Secondary teachers' Perspectives from NZCER's 2021 National Survey of Secondary Schools. NZCER, 2022. http://dx.doi.org/10.18296/rep.0022.

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The long-running National Survey of Schools project is part of the New Zealand Council for Educational Research’s (NZCER’s) Te Pae Tawhiti programme of research. NZCER has run a national survey of secondary schools every 3 years since 2003. For the 2021 National Survey of Secondary Schools, we surveyed a sample of 5,376 teachers, randomly chosen from a stratified sample of Years 9–13 and Years 7–13 secondary schools to ensure national representation of schools across all deciles. A total of 1,093 teachers responded to the survey over two data collection waves, giving a nationally representativ
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Fischl-Lanzoni, Natalia, Martin Hiti, Nathan Kaplan, and Asani Sarkar. Investor Attention to Bank Risk During the Spring 2023 Bank Run. Federal Reserve Bank of New York, 2024. http://dx.doi.org/10.59576/sr.1095.

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We examine how investors’ perception of bank balance sheet risk evolved before and during the March-April 2023 bank run. To do so, we estimate the covariance (“beta”) of bank excess stock returns with returns on factors constructed from long-short portfolios sorted on shares of uninsured deposits and unrealized losses on securities. We find that the market’s perception of bank risk shifted in both the time series and the cross-section. From January 2022 to February 2023, both factor betas were mostly insignificant, but after the bank run started, they became positive and significant for all ba
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Gall, Graham A. E., Gideon Hulata, Eric M. Hallerman, Bernard May, and Umiel Nakdimon. Creating and Characterizing Genetic Variation in Tilapia through the Creation of an Artificial Center of Origin. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7574344.bard.

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Five stocks of tilapia [oreochromis niloticus (on), red O. niloticus (ROn), O. aureus (Oa), O. mossambicus (Om), and Sarotherodon galilaeus (Sg)] were used to produce two-way (F1), three-way (3WC) and four-way crosses (4WC). Three 4WC groups, containing equal representation of all four species, formed the base population for a new synthetic stock, called an "artificial center of origin" (ACO). Four genomic maps were created using microsatellite and AFLP markers, two from a 3WC family [Om female and (Oa x ROn) male] and two from a 4WC family [(Om x Oas) females and (Sg x On) male]. Sixty-two lo
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Turnquist, Michael. PR460-223602-R01 Response to Corrosion Intersecting the Longitudinal Seam in Liquid Pipelines. Pipeline Research Council International, Inc. (PRCI), 2024. http://dx.doi.org/10.55274/r0000069.

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The primary objectives of project EC-02-13 "Response to Corrosion Interacting with the Longitudinal Seam in Liquid Pipelines" are to clarify what analysis methodologies are appropriate to assess corrosion intersecting a pipeline longitudinal seam weld (LSW) and to develop recommended guidelines to effectively manage these types of features. The overall project scope included execution of destructive testing of corrosion features intersecting an LSW, material property testing of LSWs produced by multiple manufacturing methods, detailed engineering analysis, and a literature review of all past r
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Malcolm, Gerard. Modeling Country Risk and Capital Flows in GTAP. GTAP Technical Paper, 2000. http://dx.doi.org/10.21642/gtap.tp13.

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This paper describes how the standard GTAP framework may be used to assess the short-run impacts of changes in international capital market conditions. It describes a technique that can be used to examine the short-run effects of changes in country risk. In the standard GTAP model investment demand is spread across regions according to a simple rate-of-return-equalizing rule. By making the risk premium in this rule explicit, we are able to examine the effects of changes in these risk premium. This work was originally developed as part of the course material for the South African GTAP short cou
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Balza, Lenin, Laura Heras-Recuero, David Matías, and Ariel Yépez-García. Green or Growth? Understanding the Relationship between Economic Growth and CO2 Emissions. Inter American Development Bank, 2024. http://dx.doi.org/10.18235/0012943.

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The relationship between economic growth and environmental impact is a topic that has largely been studied through the framework of the Environmental Kuznets Curve (EKC), which posits an inverted U-shape relationship between the two. We examine this link by analyzing GDP and CO2 emissions per capita from 1970 to 2020 using a panel of 136 countries. We estimate both the short- and long-run income elasticities of CO2 emissions across various regions and for rolling time periods. The analysis focuses on Latin America and the Caribbean, aggregating and disaggregating data by region and introducing
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O'Neill, Clare, Andy Saulter, Christopher Stokes, and Breogán Gómez. Application of bias correction to the Met Office operational storm surge forecast. Met Office, 2025. https://doi.org/10.62998/tymo5223.

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The Met Office runs an operational storm surge forecast system for the UK based on a 7 km configuration of NEMO forced by wind and air pressure from Met Office global atmosphere forecasts. The water level forecast comprises the surge residual from the model added to the harmonic tide prediction derived from observations. A new automated bias correction has been added to the system to improve forecast performance. The correction has 3 components: a mean sea level correction to account for different mean sea levels in the forced and unforced model runs, a monthly correction to account for the at
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Brown Horowitz, Sigal, Eric L. Davis, and Axel Elling. Dissecting interactions between root-knot nematode effectors and lipid signaling involved in plant defense. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7598167.bard.

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Root-knot nematodes, Meloidogynespp., are extremely destructive pathogens with a cosmopolitan distribution and a host range that affects most crops. Safety and environmental concerns related to the toxicity of nematicides along with a lack of natural resistance sources threaten most crops in Israel and the U.S. This emphasizes the need to identify genes and signal mechanisms that could provide novel nematode control tactics and resistance breeding targets. The sedentary root-knot nematode (RKN) Meloidogynespp. secrete effectors in a spatial and temporal manner to interfere with and mimic multi
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