Results 31 to 40 of about 10,076 (161)

TEC crea Programa de Investigación en Nanotecnología

open access: yesTecnología en Marcha, 2010
El Instituto Tecnológico de Costa Rica creó, recientemente, el Programa de Investigación en Nanotecnología, con la participación de las escuelas de Ingeniería Electrónica, Química, Física, Biología y el área académica del Doctorado en Ciencias Naturales ...
Paola Vega Castillo   +2 more
doaj  

Síntesi i aplicacions de les nanopartícules

open access: yesCiències, 2019
En aquest article, es presenta un treball de recerca, de segon de Batxillerat, on s’ha realitzat la síntesi de nanopartícules d’or i de plata i s’han estudiat les seves propietats i aplicacions.
Yolanda Fernández Caparrós   +3 more
doaj   +1 more source

Organic Matter Quality and Microbial Activity in Soils Managed With Brachiaria Succession

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Although succession systems and brachiaria improve soil quality, gaps remain in microbial community dynamics, activity, and soil organic matter stocks. Methods The objective was to evaluate the carbon (C) and nitrogen (N) stocks of soil organic matter fractions and their distribution, molecular characterization, enzyme activity ...
Siro Paulo Moreira   +5 more
wiley   +1 more source

TEC crea Programa de Investigación en Nanotecnología

open access: yesTecnología en Marcha, 2011
El Instituto Tecnológico de Costa Rica creó, recientemente, el Programa de Investigación en Nanotecnología, con la participación de las escuelas de Ingeniería Electrónica, Química, Física, Biología y el área académica del Doctorado en Ciencias Naturales
Paola Vega-Castillo   +2 more
doaj  

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

NANOTECNOLOGIA E NANOCIÊNCIA EM LIVROS DIDÁTICOS DE FÍSICA DO NÍVEL MÉDIO: DISCURSOS SOBRE A TECNOLOGIA E A EDUCAÇÃO CIENTÍFICA E TECNOLÓGICA

open access: yesMomento, 2013
Na presente investigação, analisamos as abordagens sobre a nanotecnologia e a nanociência em edições recentes de livros didáticos de Física, do nível médio da educação brasileira.
Paulo N. Lisboa-Filho, Maria A. Monteiro
doaj  

L'oportunitat de l'Enginyeria de Disseny Industrial

open access: yesTemes de Disseny, 2016
El context en què avui dia es desenvolupa l'activitat del disseny industrial es caracteritza per un canvi substancial en els reptes a què s'enfronta: la recuperació mediambiental, la connectivitat amb la tecnologia associada i la sostenibilitat en són ...
Marina Puyuelo Cazorla   +2 more
doaj   +4 more sources

Liquid‐Processed 2D Aromatic Amorphous Carbon: Defect Engineering and Universal Transport Scaling

open access: yesSmall, EarlyView.
Liquid‐processed graphene oxide (GO) thin films undergo a controllable crystalline–to–amorphous transition driven by thermal quenching. By kinetically tuning oxygen‐driven defect formation during reduction, scalable 2D aromatic amorphous carbon phases are stabilized, directly linking nanoscale disorder and defect topology to electronic transport ...
Fabiola Liscio   +22 more
wiley   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

open access: yesJournal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez   +4 more
wiley   +1 more source

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