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Mostrando ítems 1-20 de 93

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      Microstructural stability, microhardness and oxidation behaviour of in situ reinforced Ti–8.5Al–1B–1Si (wt%) 

      Velasco Ycochea, Bruno; Aswath, P. B. (Kluwer Academic Publishers, 1998)
      Acceso restringido
      Microstructural stability, microhardness and oxidation behaviour of an in situ reinforced Ti–8.5Al–1B–1Si (wt%) alloy was examined in both air and argon environments. When exposed for up to 5760 min at temperatures below ...
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      Synthesis, characterization, and in vitro cytotoxic activities of benzaldehyde thiosemicarbazone derivatives and their palladium(II) and platinum(II) complexes against various human tumor cell lines 

      Hernández Gorritti, Wilfredo Román; Paz Castillo Berríos, Juan; Vaisberg Wolach, Abraham; Spodine Spiridonova, Evgenia ; Richter, Rainer; Beyer, Lothar (Hindawi Publishing Corporation, 2008)
      Acceso abierto
      The palladium (II) bis-chelate Pd (L 1 - 3) 2 and platinum (II) tetranuclear Pt 4 (L 4) 4 complexes of benzaldehyde thiosemicarbazone derivatives have been synthesized, and characterized by elemental analysis and IR, FAB ...
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      Synthesis and Characterization of New Palladium(II) Complexes with Ligands Derived from Furan-2-carbaldehyde and Benzaldehyde Thiosemicarbazone and their in vitro Cytotoxic Activities against Various Human Tumor Cell Lines 

      Hernández Gorritti, Wilfredo Román; Paz Castillo Berríos, Juan; Carrasco Solís, Fernando Carlos; Vaisberg Wolach, Abraham; Manzur Saffie, Jorge ; Spodine Spiridonova, Evgenia ; Beyer, Lothar (Walter de Gruyter GmbH, 2010)
      Acceso abierto
      With the ligands 4-phenyl-1-(furan-2-carbaldehyde)thiosemicarbazone, HTSC1, (1), 4-phenyl-1- (5 -phenyl-furan-2-carbaldehyde)thiosemicarbazone, HTSC2 (2), o-methoxy-benzaldehydethiosemicarbazone, HTSC3 (3), and ...
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      Effect of y-irradiation on the growth of ZnO nanorod films for photocatalytic disinfection of contaminated water 

      Alarcón, Julio; Ponce Álvarez, Silvia; Paraguay Delgado, Francisco; Rodríguez Rodríguez, Juan (Academic Press, 2011)
      Acceso restringido
      The growth of ZnO nanorods on a flat substrate containing c-irradiated seeds and their ability to photocatalytically eliminate bacteria in water were studied. The seed layer was obtained, by the spray pyrolysis technique, ...
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      Desalination using a parabolic-trough concentrator 

      Saettone Olschewski, Erich Arturo (Allerton Press Inc., 2012)
      Acceso abierto
      There are presented desalination results by using a parabolic-trough concentrator (PTC) device of 5.5 m2, 0.7 m of line focal distance and aligned in the East—West direction. The length of the PTC is 2.5 m and its rectangular ...
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      Espectrómetro para radiación visible hecho en casa, de bajo costo y altas prestaciones 

      Montoya Rossi, Eduardo; Baltuano Elías, Óscar; Arbildo López, Aurelio (Sociedad Química del Perú, 2013)
      Acceso abierto
      Un problema de la enseñanza – aprendizaje del análisis químico instrumental es el alto costo de la instrumentación comercial, incluyendo aspectos de mantenimiento y servicio. Esto limita el acceso de los estudiantes a la ...
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      Synthesis and Characterization of New Palladium(II) Thiosemicarbazone Complexes and Their Cytotoxic Activity against Various Human Tumor Cell Lines 

      Hernández Gorritti, Wilfredo Román; Paz Castillo Berríos, Juan; Carrasco Solís, Fernando Carlos; Vaisberg Wolach, Abraham; Spodine Spiridonova, Evgenia ; Manzur Saffie, Jorge ; Beyer, Lothar (Hindawi Publishing Corporation, 2013)
      Acceso abierto
      The palladium(II) bis-chelate complexes of the type [Pd(TSC1-5)2] (6–10), with their corresponding ligands 4-phenyl-1-(acetone)-thiosemicarbazone, HTSC1 (1), 4-phenyl-1-(2'-chloro-benzaldehyde)-thiosemicarbazone, HTSC2 ...
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      The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates 

      Rodríguez Rodríguez, Juan; Onna, Diego; Sánchez, Luis; Marchi, María Claudia; Candal, Roberto; Ponce Álvarez, Silvia; Bilmes, Sara A. (Elsevier BV, 2013)
      Acceso restringido
      Spray pyrolysis (SP) and spray-gel (SG) techniques were used to deposit ZnO seeds on Fluor doped tin oxide glasses (FTO), heated at 350 ¿C or 130 ¿C, and PET heated at 90 ¿C. The effect of seeding on the morphology and ...
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      Influence of Pyrolytic Seeds on ZnO Nanorod Growth Onto Rigid Substrates for Photocatalytic Abatement of Escherichia coli in water 

      Sánchez, Luis; Guz, Lucas; García, Pilar; Ponce Álvarez, Silvia; Goyanes, Silvia; Marchi, María Claudia; Candal, Roberto; Estrada, Walter; Rodríguez Rodríguez, Juan (IWA Publishing, 2014)
      Acceso restringido
      ZnO nanorods (ZnO NRs) were grown on ZnO seeded fluorine doped tin oxide (FTO) substrates at low temperatures (90 °C) from Zn2+ precursors in alkaline aqueous solution. The ZnO seeds were deposited on the FTO substrate ...
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      Nanostructured Screen-Printed Electrodes Modified with Self-Assembled Monolayers for Determination of Metronidazole in Different Matrices 

      Huayhuas Chipana, B.; Morales Gomero, Juan Carlos; Taboada Sotomayor, M. (Sociedade Brasileira de Quimica, 2014)
      Acceso abierto
      This paper describes the development of a sensor for the determination of metronidazole using a simple method involving the creation of nanoporous structures on gold electrodes followed by modification with self-assembled ...
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      Design and construction of a fresnel linear distiller 

      Saettone Olschewski, Erich Arturo (Allerton Press, Inc., 2014)
      Acceso restringido
      It was designed a Fresnel linear distiller based on optical calculations obtained from taking into account Lima's latitude value, Earth inclination angle and heat absorber cavity's dimensions. The 5.6 m^sup 2^ reflective ...
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      Characterization of Glyceridic and Unsaponifiable Compounds of Sacha Inchi (Plukenetia huayllabambana L.) Oils 

      Chasquibol Silva, Nancy Ascención; Del Águila, Chellah; Yácono Llanos, Juan Carlos; Guinda Marín, Ángeles; Moreda Martino, Wenceslao; Gómez Coca, Raquel Beatriz; Pérez Camino, María del Carmen (American Chemical Society, 2014)
      Acceso abierto
      This work deals with the characterization of the main glyceridic and unsaponifiable components of oils obtained from Sacha inchi (Plukenetia huayllabambana L.) seed ecotypes collected during two harvests in the Department ...
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      Intelligence in Peru: Students' results in Raven and its relationship to SES. 

      Manrique Millones, Denisse Lisette; Flores Mendoza, Carmen; Millones Rivalles, Rosa Bertha (Elsevier, 2015)
      Acceso restringido
      Several studies have tried to estimate the average cognitive ability level in Peru. The results oscillated between IQ 90 (Lynn & Vanhanen, 2002) and 85 (Lynn & Vanhanen, 2006, 2012). Moreover, regional studies conducted ...
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      Synthesis and Characterization of ZnO Nanorod Films on PET for Photocatalytic Disinfection of Water 

      Sánchez, Luis; Guz, Lucas; García, Pilar; Ponce Álvarez, Silvia; Goyanes, Silvia; Marchi, María Claudia; Candal, Roberto; Rodríguez Rodríguez, Juan (Science & Technology Network, Inc., 2015)
      Acceso abierto
      ZnO nanorods (ZnO NRs) were grown on ZnO seeded polyethylene tert-phtalate (PET) substrates obtained from recycled soda bottles at low temperatures (90 °C) from Zn2+ precursors in alkaline aqueous solution. The ZnO seeds ...
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      Composición fitoquímica del aceite de las semillas del fruto del "Aguaymanto", Physalis peruviana L. 

      Chasquibol Silva, Nancy Ascención; Yácono Llanos, Juan Carlos (Sociedad Química del Perú, 2015)
      Acceso abierto
      Se estudió el contenido de ácidos grasos y antioxidantes en el aceite de las semillas del fruto del “aguaymanto”. La extracción del aceite crudo se realizó por el método de prensado por expeller con un rendimiento del ...
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      Nanostructured Sensors for Determination of 3-(3,4-Dichlorophenyl)-1,1-Dimethylurea Based in Molecularly Imprinted Polymers (MIPs) Deposited in Screen Printed Carbon Nanotubes 

      Fernández Cori, R.; Morales Gomero, Juan Carlos; Huayhuas Chipana, B.; Taboada Sotomayor, M.; Ruíz Montoya, J. (The Electrochemical Society, 2015)
      Acceso abierto
      A sensor based on molecularly imprinted polymers (MIP) was developed for determination of 3-(3,4-Dichlorophenyl)-1,1- dimethylurea (diuron). The MIP were synthesized by free radical polymerization in wich diuron acted ...
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      Comparison between solar distillers with and without solar concentrator 

      Saettone Olschewski, Erich Arturo; Valencia Tovar, Yohan (Allerton Press, Inc., 2016)
      Acceso restringido
      In order to desalinate sea water by only solar energy using they were designed and built three distillers in which experimental measurements were taken to calculate production, performance and cost. Distillers by solar ...
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      In vitro antiproliferative activity of palladium(II) thiosemicarbazone complexes and the corresponding functionalized chitosan coated magnetite nanoparticles 

      Hernández Gorritti, Wilfredo Román; Vaisberg Wolach, Abraham; Tobar, Mabel; Álvarez, Melisa; Manzur Saffie, Jorge; Echevarría, Yuri; Spodine Spiridonova, Evgenia  (The Royal Society of Chemistry and the Centre National de la Recherche Scientifique, 2016)
      Acceso restringido
      This work reports the synthesis and characterization of palladium(II) complexes Pd(L1)2 (1), Pd(L2)2 (2), Pd(L3)2 (3) and Pd(L4)2 (4), where L1H: 1-naphthaldehyde thiosemicarbazone; L2H: 4-phenyl-(1-naphthaldehyde)thiose ...
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      Markers of quality and genuineness of commercial extra virgin sacha inchi oils 

      Chasquibol Silva, Nancy Ascención; Gómez Coca, Raquel Beatriz; Yácono Llanos, Juan Carlos; Guinda Marín, Ángeles; Moreda, W.; Del Águila, Chellah; Pérez Camino, María del Carmen (Consejo Superior de Investigaciones Científicas, 2016)
      Acceso abierto
      This work tackles the study of the quality and authenticity of oils labeled and commercialized as extra virgin sacha inchi oil. Major and minor components as triglycerides, fatty acid methyl esters, tocopherols, sterols ...
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      The network organizational chart as a tool for managing organizational complexity 

      Aita Ramírez Gastón, Rafael Martín Antonio (WIT Press, 2016)
      Acceso abierto
      Companies in the twenty first century are required to continually adapt to an uncertain and ever-changing environment, which requires a more organic and flexible organization, without losing the benefits of volume production ...

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