Results 21 to 30 of about 1,644,486 (171)

Energia nuclear: uma opinião da sua relação com a sustentabilidade

open access: yesRevista Eletrônica Científica da UERGS, 2023
Com o objetivo de analisar, através de revisão bibliográfica, os aspectos ambientais da utilização da energia nuclear como matriz energética e apresentar a opinião do autor em base destes, o trabalho foi elaborado contendo o conceito de energia nuclear ...
Vinícius Immich   +4 more
doaj   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Radioterapia en Arequipa

open access: yes, 2023
El Servicio de Radioterapia del Hospital Goyeneche es pionero del tratamiento del cáncer en la ciudad de Arequipa, en octubre de 1965 por iniciativa de la Dra.
Instituto Peruano de Energía Nuclear, Instituto Peruano de Energía Nuclear
core   +1 more source

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez   +5 more
wiley   +1 more source

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

Functionalized Graphene‐Reinforced Thermoplastic Polyurethane Nanocomposites: Thermomechanical and Magnetic Properties

open access: yesPolymer Composites, EarlyView.
TrGO–Ni/Co Hybrid Nanocomposites: From Hydrothermal Synthesis to Melt Processing. ABSTRACT Polymeric nanocomposites have attracted significant interest for their low density, processability, and multifunctional properties, making them suitable for applications such as flexible electronics, sensors, biomedical devices, and functional coatings.
Bruno B. Storte   +8 more
wiley   +1 more source

Evaluación de la operación de un medidor remoto de calidad del aire basado en sensores de lectura directa

open access: yesRevista de Investigación de Física, 2020
Se reporta la evaluación de un instrumento de bajo costo, desarrollado por los autores, para la medición continua y autónoma de las concentraciones de NO 2 , SO 2 , NO, H 2 S, CO, PM2.5 y PM10 en una zonas urbanas, el mismo que ha sido puesto a prueba en
Oscar Baltuano   +4 more
doaj   +1 more source

Development of transient Monte Carlo in a fissile system with β-delayed emission from individual precursors using modified open source code OpenMC(TD)

open access: yesNuclear Engineering and Technology, 2023
In deterministic and Monte Carlo transport codes, β-delayed emission is included using a group structure where all of the precursors are grouped together in 6 groups or families, but given the increase in computational power, nowadays there is no reason ...
J. Romero-Barrientos   +6 more
doaj   +1 more source

Photovoltaic Effect in a III‐IV‐V Compound Semiconductor

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
A large reduction of the GaAs band gap is obtained with incorporation of 6.5% Ge during epitaxy without introducing extended defects or composition inhomogeneity. Heterojunction solar cell devices were fabricated with 0.76‐V open circuit voltage and an internal quantum efficiency above 40% at energies below the bandgap of the GaAs emitter.
José M. Ripalda   +13 more
wiley   +1 more source

La química en el Centro Nuclear de Investigaciones del Perú

open access: yesRevista de Química, 1988
La puesta en servicio del Centro Nuclear de Investigaciones del Perú (CNIP), con su reactor de 10 MW, constituirá un acontecimiento de primer orden en la historia de la ciencia en el Perú.
Ricardo Espinosa G.   +2 more
doaj  

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