Search Results - "Rogelio Ospina"

Effects of copper on hydroxyapatite thin films by pulsed laser deposition on silicon by Bohorquez‐Santiago, Leonardo, Devia‐Narvaez, Diana M., Ospina‐Ospina, Rogelio, Torres‐Ceron, Darwin A., Amaya‐Roncancio, Sebastian, Martinez, Sebastian, Castillo‐Paz, Angelica M., Rodriguez‐Garcia, Mario E.

“…This study deals with the effect of Cu on hydroxyapatite (HAp) thin films on silicon substrates prepared by pulsed laser deposition (PLD) technique for Cu…”
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Solution of the traffic flow equation using the finite element method by Devia Narváez, Diana, Ospina Ospina, Rogelio, Mesa, Fernando

“…In this document we will study and solve the nonlinear partial differential equation, with initial conditions for vehicle entry that serves to model the…”
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Enhanced photoelectrochemical performance of iron and carbon self-doped TiO2 photoanodes modified with nitrogen by Sequeda-Pico, Ingrid N., Joya-Herrera, Laura M., Meléndez, Angel M., Ospina, Rogelio Ospina, Henao Martínez, José A., Niño-Gómez, Martha E.

“…The photoelectrochemical performance and the semiconducting properties of iron, carbon and nitrogen modified TiO2 films prepared by a sol-gel method and…”
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Revolutionizing energy storage: Silicon nanowires (SiNWs) crafted through metal-assisted chemical etching by Farid, Ghulam, Amade-Rovira, Roger, Ma, Yang, Chaitoglou, Stefanos, Ospina, Rogelio, Bertran-Serra, Enric

“…In the world of advanced energy conversion and storage, silicon nanostructures have garnered immense interest of scientists and innovators alike with their…”
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Crystalline nano-coatings of fluorine-substituted hydroxyapatite produced by magnetron sputtering with high plasma confinement by López, Elvis O., Rossi, André L., Archanjo, Braulio S., Ospina, Rogelio O., Mello, Alexandre, Rossi, Alexandre M.

“…A radio-frequency magnetron sputtering technique operating in right-angle geometry (RAMS) with high plasma confinement was revised to produce thin films…”
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Pattern recognition for the modification of characteristics using non-linear techniques by Mesa, Fernando, Ospina-Ospina, Rogelio, Devia-Narvaez, Diana Marcela

“…Traditional data processing applications are unsuitable for handling large amounts of data. To achieve an efficient manipulation and extraction of…”
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Carbon nanotubes grown by plasma enhanced chemical vapor deposition of acetylene in the presence of water vapor by Sancho-Tapia, Júlia, Bertran-Sierra, Enric, Ospina, Rogelio

“…Carbon nanotubes can be synthesized using various techniques. This work aims to study the experimental process of growing carbon nanotubes via plasma-enhanced…”
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Method for fabricating self-powered cement sensors based on gold nanoparticles by Triana-Camacho, Daniel A., Ospina-Ospina, Rogelio, Quintero-Orozco, Jorge H.

“…Nowadays, cement industry researchers are working hard to develop cement sensors based on nanocomposites because they can be used to develop intelligent and…”
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Hybrid perovskite films deposited by thermal evaporation from a single source by Otalora, Camilo, Botero, Mónica A., Mantilla, Maria. A., Petit, Johann. F., Ospina, Rogelio, Gordillo, Gerardo

“…Hybrid perovskites, such as MAPbI 3, are very promising materials to fabricate highly efficient and low-cost solar cells and photodetectors. In this work, we…”
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Folate receptors detection based on the immobilization of folic acid onto Ti−W oxides thin film by Bertel, Linda, Ospina, Rogelio, García-Martín, José Miguel, Miranda, David A.

“…The overexpression of folate receptors on cell surfaces is associated with abnormalities linked to epithelial cancers. This study reports on a capacitive…”
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Vertical graphene nanowalls supported hybrid W2C/WOx composite material as an efficient non-noble metal electrocatalyst for hydrogen evolution by Rodriguez-Miguel, Shahadev, Ma, Yang, Farid, Ghulam, Amade, Roger, Ospina, Rogelio, Andujar, Jose Luis, Bertran-Serra, Enric, Chaitoglou, Stefanos

“…Research for the development of noble metal-free electrodes for hydrogen evolution has blossomed in recent years. Transition metal carbides compounds, such as…”
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Comparative Analysis of Thermal Activation on Felts and Continuous Carbon Filament Electrodes for Vanadium Redox Flow Batteries by Aguiló‐Aguayo, Noemí, Ebert, Toni Alena, Amade, Roger, Bertran, Enric, Ospina, Rogelio, Rodriguez‐Pereira, Jhonatan, Ponce de León, Carlos, Bechtold, Thomas, Pham, Tung

“…Thermal treatments are commonly used to improve electrode kinetics in vanadium redox flow batteries (VRFB). The impact of the widely adopted thermal…”
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Growth of Crystalline Hydroxyapatite Thin Films at Room Temperature by Tuning the Energy of the RF-Magnetron Sputtering Plasma by López, Elvis O, Mello, Alexandre, Sendão, Henrique, Costa, Lilian T, Rossi, André L, Ospina, Rogelio O, Borghi, Fabrício F, Silva Filho, José G, Rossi, Alexandre M

“…Right angle radio frequency magnetron sputtering technique (RAMS) was redesigned to favor the production of high-quality hydroxyapatite (HA) thin coatings for…”
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Synthesis of Oxide Iron Nanoparticles Using Laser Ablation for Possible Hyperthermia Applications by Rivera-Chaverra, María J., Restrepo-Parra, Elisabeth, Acosta-Medina, Carlos D., Mello, Alexandre, Ospina, Rogelio

“…In this work, iron oxide nanoparticles produced using the laser ablation technique were studied in order to determine the characteristics of these…”
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Advancements in Plasma-Enhanced Chemical Vapor Deposition for Producing Vertical Graphene Nanowalls by Bertran-Serra, Enric, Rodriguez-Miguel, Shahadev, Li, Zhuo, Ma, Yang, Farid, Ghulam, Chaitoglou, Stefanos, Amade, Roger, Ospina, Rogelio, Andújar, José-Luis

“…In recent years, vertical graphene nanowalls (VGNWs) have gained significant attention due to their exceptional properties, including their high specific…”
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Finite Element Analysis of An Evaporation System to Synthesize Kesterite thin Films by Rondón Almeyda, Carlos Eduardo, Botero Londoño, Monica Andrea, Ospina Ospina, Rogelio

“…Currently, there is an interest within the scientific community in thin-film solar cells with a Kesterite (Cu2ZnSnS4) type absorber layer, since they report a…”
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Finite Element Analysis of An Evaporation System to Synthesize Kesterite thin Films/Analisis de elementos finitos de un sistema de evaporacion para sintetizar peliculas delgadas de kesterita by Almeyda, Carlos Eduardo Rondon, Londono, Monica Andrea Botero, Ospina, Rogelio Ospina

“…Currently, there is an interest within the scientific community in thin-film solar cells with a Kesterite (C[u.sub.2]ZnSn[S.sub.4]) type absorber layer, since…”
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Molybdenum and Nickel Nanoparticles Synthesis by Laser Ablation towards the Preparation of a Hydrodesulfurization Catalyst by Viviana Londoño-Calderón, Rogelio Ospina, Jhonatan Rodriguez-Pereira, Sergio A. Rincón-Ortiz, Elisabeth Restrepo-Parra

“…A clean straightforward laser ablation method in deionized (DI) water is reported for the synthesis of Molybdenum (Mo) and Nickel (Ni) nanoparticles (NPs). The…”
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Study of duty cycle influence on the band gap energy of TiO2/P coatings obtained by PEO process by Torres-Ceron, Darwin Augusto, Restrepo-Parra, Elisabeth, Acosta-Medina, Carlos Daniel, Escobar-Rincon, Daniel, Ospina-Ospina, Rogelio

“…Plasma Electrolytic Oxidation (PEO) processing was used to produce ceramic coatings of TiO2/P, on commercially pure titanium sheets varying the energy per…”
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Incorporation of a dioxo-molybdenum (VI) complex into a titanium-functionalized Zr(IV)-Based metal-organic framework by Bravo-Sanabria, César A., Solano-Delgado, Leidy C., Ospina-Ospina, Rogelio, Martínez-Ortega, Fernando, Ramírez-Caballero, Gustavo E.

“…The use of Titanium-based Metal-Organic Frameworks (MOFs) as substitutes for titanium dioxide in photocatalytic applications is a recent topic of study. A…”
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