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635 results on '"Rodriguez, Francisco J."'

53. Thermal Stability and Early Degradation Mechanisms of High-Density Polyethylene, Polyamide 6 (Nylon 6), and Polyethylene Terephthalate

Author

Sustaita-Rodriguez, Jose M., Medellin-Rodriguez, Francisco J., Olvera-Mendez, Diana C., Gimenez, Alejandro J., and Luna-Barcenas, Gabriel

Subjects
Activation energy, Nylon, Polyethylene terephthalate, Polymer industry, Containers, Spectroscopy, Polyamides, Polymers, Engineering and manufacturing industries, Science and technology
Abstract

The thermal stability and degradation mechanisms of three semicrystalline polymers (polyethylene terephthalate [PET]. high-density polyethylene [HDPE]. and polyamide 6 [nylon 6]) were studied. Thermogravimetric traces were acquired first at heating rates of 1[degrees]C/min and 10[degrees]C/min, and it was determined that the heating rate significantly affected the thermal decay curves of the three polymers. The results allowed the selection of specific temperatures at which to carry out heating and cooling cycles from room temperature to the molten state. The thermal behaviors of HDPE, nylon 6, and PET each had particular characteristics. HDPE showed the highest thermal resistance, whereas nylon 6 displayed the lowest. PET had the lowest activation energy for degradation, 93.5 kJ/mol, and retained 14wt% after thermal recycling with no influence of molecular weight. Thermal cycling also revealed gradual morphological changes in HDPE, nylon 6, and PET, and their crystals changed from regular to branched spherulites with variations in the nucleation patterns. Fourier-transform infrared spectroscopy measurements allowed us to explain the early stages of degradation for each polymer., INTRODUCTION Thermoplastic semicrystalline polymers are important in the fabrication of automotive parts, containers, packaging films, fibers, etc. They also replace glass, metals, and ceramics in a large number of engineering [...]

Published
2019
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55. Artificial Visual System Used for Dental Fluorosis Discrimination

Author

Mora-González, Miguel, Martínez-Cano, Evelia, Casillas-Rodríguez, Francisco J., Peña-Lecona, Francisco G., Reyes-García, Carlos A., Muñoz-Maciel, Jesús, Rodríguez-Marmolejo, H. Ulises, Martínez-García, Amalia, editor, Furlong, Cosme, editor, Barrientos, Bernardino, editor, and Pryputniewicz, Ryszard J., editor

Published
2017
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59. Measles virus envelope pseudotyped lentiviral vectors transduce quiescent human HSCs at an efficiency without precedent

Author

Lévy, Camille, Amirache, Fouzia, Girard-Gagnepain, Anais, Frecha, Cecilia, Roman-Rodríguez, Francisco J., Bernadin, Ornellie, Costa, Caroline, Nègre, Didier, Gutierrez-Guerrero, Alejandra, Vranckx, Lenard S., Clerc, Isabelle, Taylor, Naomi, Thielecke, Lars, Cornils, Kerstin, Bueren, Juan A., Rio, Paula, Gijsbers, Rik, Cosset, François-Loïc, and Verhoeyen, Els

Published
2017
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73. High-Concentrator Photovoltaic Power Plants: Energy Balance and Case Studies

Author

Pérez-Higueras, Pedro, Muñoz-Rodríguez, Francisco J., Adame-Sánchez, Carlos, Hontoria-García, Leocadio, Rus-Casas, Catalina, González-Rodríguez, Antonio, Aguilar-Peña, Juan D., Gallego-Álvarez, Francisco J., González-Luchena, Ivan, Fernández, Eduardo F., Pérez-Higueras, Pedro, editor, and Fernández, Eduardo F., editor

Published
2015
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76. Menopause as a predictor of new-onset asthma: A longitudinal Northern European population study

Author

Triebner, Kai, Johannessen, Ane, Puggini, Luca, Benediktsdóttir, Bryndís, Bertelsen, Randi J., Bifulco, Ersilia, Dharmage, Shyamali C., Dratva, Julia, Franklin, Karl A., Gíslason, Thórarinn, Holm, Mathias, Jarvis, Deborah, Leynaert, Bénédicte, Lindberg, Eva, Malinovschi, Andrei, Macsali, Ferenc, Norbäck, Dan, Omenaas, Ernst R., Rodríguez, Francisco J., Saure, Eirunn, Schlünssen, Vivi, Sigsgaard, Torben, Skorge, Trude D., Wieslander, Gunilla, Zemp, Elisabeth, Svanes, Cecilie, Hustad, Steinar, and Gómez Real, Francisco

Published
2016
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78. Enhanced Frequency-Guided Method with Particle Swarm Optimization for the Phase Recovery of a Single Interferogram.

Author

Quintanar-Sotelo, Christian O., Casillas-Rodriguez, Francisco J., Muñoz-Maciel, Jesus, Peña-Lecona, Francisco G., and Mora-Gonzalez, Miguel

Subjects
PARTICLE swarm optimization, DIFFRACTION patterns, DEMODULATION
Abstract

Featured Application: The methods described here can be applied in interferometric measurements of dynamic events that are challenging to analyze using conventional approaches incapable of evaluating a single interferogram with closed fringes. Frequency-guided sequential demodulation (FSD) is a technique used to recover the phase of closed fringe patterns when only a single interferogram is available. FSD is a sequential method that follows simple and intuitive processing steps for interferogram demodulation, guided by the frequency of the fringes. The objective of this work is to apply an optimizer block that feeds from the first stages of the FSD and make feedback in such a manner as to optimize the search for guided frequencies. This approach significantly reduces demodulation errors, especially when dealing with high-frequency fringe patterns. The results of using the FSD with and without optimizers are compared. The optimizers used are the Harmonic Search Optimization (HSO) as well as the Particle Swarm Optimization (PSO). Results show that FSD with PSO delivers better results compared with other methods here analyzed. [ABSTRACT FROM AUTHOR]

Published
2023
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79. Supplementary Figure 1 from Lurbinectedin (PM01183), a New DNA Minor Groove Binder, Inhibits Growth of Orthotopic Primary Graft of Cisplatin-Resistant Epithelial Ovarian Cancer

Author

Vidal, August, primary, Muñoz, Clara, primary, Guillén, María-José, primary, Moretó, Jemina, primary, Puertas, Sara, primary, Martínez-Iniesta, María, primary, Figueras, Agnés, primary, Padullés, Laura, primary, García-Rodriguez, Francisco J., primary, Berdiel-Acer, Mireia, primary, Pujana, Miguel A., primary, Salazar, Ramón, primary, Gil-Martin, Marta, primary, Martí, Lola, primary, Ponce, Jordi, primary, Molleví, David G., primary, Capella, Gabriel, primary, Condom, Enric, primary, Viñals, Francesc, primary, Huertas, Dori, primary, Cuevas, Carmen, primary, Esteller, Manel, primary, Avilés, Pablo, primary, and Villanueva, Alberto, primary

Published
2023
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80. Supplementary Table 1 from Lurbinectedin (PM01183), a New DNA Minor Groove Binder, Inhibits Growth of Orthotopic Primary Graft of Cisplatin-Resistant Epithelial Ovarian Cancer

Author

Vidal, August, primary, Muñoz, Clara, primary, Guillén, María-José, primary, Moretó, Jemina, primary, Puertas, Sara, primary, Martínez-Iniesta, María, primary, Figueras, Agnés, primary, Padullés, Laura, primary, García-Rodriguez, Francisco J., primary, Berdiel-Acer, Mireia, primary, Pujana, Miguel A., primary, Salazar, Ramón, primary, Gil-Martin, Marta, primary, Martí, Lola, primary, Ponce, Jordi, primary, Molleví, David G., primary, Capella, Gabriel, primary, Condom, Enric, primary, Viñals, Francesc, primary, Huertas, Dori, primary, Cuevas, Carmen, primary, Esteller, Manel, primary, Avilés, Pablo, primary, and Villanueva, Alberto, primary

Published
2023
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86. Generating Isotone Galois Connections on an Unstructured Codomain

Author

García-Pardo, Francisca, Cabrera, Inma P., Cordero, Pablo, Ojeda-Aciego, Manuel, Rodríguez, Francisco J., Junqueira Barbosa, Simone Diniz, editor, Chen, Phoebe, editor, Cuzzocrea, Alfredo, editor, Du, Xiaoyong, editor, Filipe, Joaquim, editor, Kara, Orhun, editor, Kotenko, Igor, editor, Sivalingam, Krishna M., editor, Ślęzak, Dominik, editor, Washio, Takashi, editor, Yang, Xiaokang, editor, Laurent, Anne, editor, Strauss, Oliver, editor, Bouchon-Meunier, Bernadette, editor, and Yager, Ronald R., editor

Published
2014
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87. The Firefighter Problem: Application of Hybrid Ant Colony Optimization Algorithms

Author

Blum, Christian, Blesa, Maria J., García-Martínez, Carlos, Rodríguez, Francisco J., Lozano, Manuel, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Blum, Christian, editor, and Ochoa, Gabriela, editor

Published
2014
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88. Oil, Power, and Poverty in Angola

Author

García-Rodríguez, José León, García-Rodríguez, Francisco J., Castilla-Gutiérrez, Carlos, and Major, Silvério Adriano

Published
2015

90. An Artificial Bee Colony Algorithm for the Unrelated Parallel Machines Scheduling Problem

Author

Rodriguez, Francisco J., García-Martínez, Carlos, Blum, Christian, Lozano, Manuel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Coello, Carlos A. Coello, editor, Cutello, Vincenzo, editor, Deb, Kalyanmoy, editor, Forrest, Stephanie, editor, Nicosia, Giuseppe, editor, and Pavone, Mario, editor

Published
2012
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91. Iterated Greedy Algorithms for the Maximal Covering Location Problem

Author

Rodriguez, Francisco J., Blum, Christian, Lozano, Manuel, García-Martínez, Carlos, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Hao, Jin-Kao, editor, and Middendorf, Martin, editor

Published
2012
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98. Retrieving Documents with Geographic References Using a Spatial Index Structure Based on Ontologies

Author

Luaces, Miguel R., Places, Ángeles S., Rodríguez, Francisco J., Seco, Diego, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Song, Il-Yeol, editor, Piattini, Mario, editor, Chen, Yi-Ping Phoebe, editor, Hartmann, Sven, editor, Grandi, Fabio, editor, Trujillo, Juan, editor, Opdahl, Andreas L., editor, Ferri, Fernando, editor, Grifoni, Patrizia, editor, Caschera, Maria Chiara, editor, Rolland, Colette, editor, Woo, Carson, editor, Salinesi, Camille, editor, Zimányi, Esteban, editor, Claramunt, Christophe, editor, Frasincar, Flavius, editor, Houben, Geert-Jan, editor, and Thiran, Philippe, editor

Published
2008
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