Results 1 to 10 of about 60,408 (241)

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue [PDF]

Beilstein Journal of Nanotechnology
Water pollution, significantly influenced by the discharge of synthetic dyes from industries, such as textiles, poses a persistent global threat to human health.
Dalia Chávez-García, Mario Guzman, Viridiana Sanchez, Rubén D. Cadena-Nava   +3 more
doaj   +2 more sources

The Impact of Cognitive Anxiety and the Rating of Pain on Care Processes in a Vigilance Task: The Important Part Played by Age. [PDF]

Pain Res Manag, 2020
Chronic pain is a serious public health problem that has grown exponentially in recent years, which is why it has received the attention of numerous researchers. Most of the studies in the field of chronic pain have focused on care as a mediating variable on the perception of painful stimuli and emotions.
Pinel L, Perez-Nieto MA, Redondo M, Rodríguez-Rodríguez L, Mateos LL.   +4 more
europepmc   +2 more sources

Receptor coherente para imágenes por microondas

, 1984
Peer ...
Elías de los Reyes, L. Jofre, Miquel Ferrando Bataller   +2 more
openalex   +3 more sources

Caracterização de enlace de microondas [PDF]

, 2021
Monografia (graduação)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2002. ; O tráfego da RedUnB utiliza uma fibra óptica, com taxa de transmissão de 2 Mbps, e se conecta com a Rede Nacional de Pesquisa.
Francisco, Cecília Magalhães, Salviano, Glenda Montijo   +1 more
openaire   +2 more sources

On the Modeling of Microstrip Lines Loaded With Dumbbell Defect-Ground-Structure (DB-DGS) and Folded DB-DGS Resonators

IEEE Access, 2021
This paper presents a lumped-element equivalent circuit model of microstrip lines loaded with dumbbell defect-ground-structure (DB-DGS) resonators, etched in the ground plane.
Lijuan Su, Jonathan Munoz-Enano, Paris Velez, Jesus Martel, Francisco Medina, Ferran Martin   +5 more
doaj   +1 more source

Qualification and Validation of the performances of the SAR instrument on board PAZ

Revista de Teledetección, 2016
PAZ is a satellite with a highly flexible X band SAR as primary instrument. The radar is capable of generating high quality SAR images with sizes ranging from 5 km to 200 km and resolutions from 30 m for products with high coverage to values around 1m or
J. Closa-Soteras, A. Zurita, J. Sánchez, M. Labriola, A. Solana   +4 more
doaj   +1 more source

Molienda asistida con microondas de un coque metalúrgico

Revista de Metalurgia, 2014
Los coques metalúrgicos están compuestos mayoritariamente de carbono grafítico (s2p2) y diferentes compuestos inorgánicos con distintas capacidades de absorber la radiación de microondas.
Esteban Ruisánchez, Emilio J. Juárez-Pérez, Ana Arenillas, José M. Bermúdez, José Ángel Menéndez   +4 more
doaj   +1 more source

Experimentos didáticos envolvendo radiação microondas [PDF]

Química Nova, 2004
Theoretical and practical aspects of the use of microwave-assisted strategies in chemistry are introduced for students using simple and safe experiments employing a domestic oven. Three procedures are proposed for evaluating the distribution of microwave radiation inside the microwave oven cavity: (1) variation of the volume of marshmallows; (2) drying
Rosini, Fabiana, Nascentes, Clésia C., Nóbrega, Joaquim A.   +2 more
openaire   +3 more sources

Evaluación de propiedades fisicoquímicas de aceite de girasol (Helianthus annuus) adicionado con extracto de achiote (Bixa orellana) durante calentamiento en horno microondas

Perspectivas en Nutrición Humana, 2016
Antecedentes: la cocción de alimentos en horno microondas es una tendencia en aumento en la población en general, sin que se tenga en cuenta el efecto sobre su calidad.
Julie Naranjo1; Yenny Dueñas, Obradith Caicedo, Arjuna Castrillón   +2 more
doaj   +1 more source

Secado del tarwi (Lupinus mutabilis) por combinación de microondas y aire caliente

Agroindustrial Science, 2013
El objetivo del presente trabajo fue optimizar el secado del tarwi (Lupinus mutabilis) por combinación de microondas y aire caliente. El tarwi desamargado fue secado con microondas y aire caliente utilizando un Diseño Compuesto Central Rotable variando
Viviano Paulino Ninaquispe Zare
doaj   +1 more source