Results 111 to 120 of about 240,649 (221)

Le charbon de bois au Brésil [PDF]

open access: yes, 2006
Le Brésil est le premier producteur mondial de charbon de bois. La plupart des fours utilisés lors de la carbonisation du bois ne sont pas mécanisés et la technologie employée est encore archaïque. Au cours de l'histoire, le développement de ce secteur a
Brito, José Otavia   +3 more
core  

Influence of Dual Heat Treatment on the Metallurgy and Mechanical Behaviour of Diamond‐Like Carbon–Coated NiTi Rotary Systems: A Multimethod Investigation

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim To investigate how the application of dual heat treatment during the manufacturing process influences the mechanical performance (flexibility, cyclic fatigue resistance, torsional strength, bending, buckling and cutting efficiency) of rotary nickel‐titanium endodontic instruments. Methodology Rainbow One (n = 58) and Rainbow Ultra (n = 58)
Emmanuel João Nogueira Leal Silva   +5 more
wiley   +1 more source

Utilidad de las ténicas de espirometría y oximetría en la predicción de alteración pulmonar en trabajadores de la minería del carbón en Paipa-Boyacá

open access: yesRevista de la Facultad de Medicina, 2009
Antecedentes. En 2003 se reportó incidencia de 762 casos de neumoconiosis y 3686 casos de enfermedad respiratoria crónica en Colombia. Objetivo.
Nubia Mercedes González Jiménez   +4 more
doaj  

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus , especially Nellore cattle, remain limited.
J. A. Silva   +10 more
wiley   +1 more source

EVALUACIÓN EXPERIMENTAL DE LAS VELOCIDADES MÍNIMAS DE FLUIDIZACIÓN PARA MEZCLAS DE CARBÓN RIPIO Y RESIDUOS AGRÍCOLAS COLOMBIANOS

open access: yesDyna, 2011
Un estudio sistemático experimental se lleva a cabo para determinar las propiedades fluido-dinámicas como la distribución del tamaño de partícula, la densidad de bulto, la velocidad de fluidización, etc. para mezclas de carbón ripio, residuo de las minas
CARLOS GÓMEZ, ELIANA LOPERA
doaj  

Flavobacterium oreochromis From Farmed Tambaqui (Colossoma macropomum): Insights Into Genetic, Phenotypic and Pathogenic Diversity

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Flavobacterium spp. are the etiological agents of columnaris disease. Although there is evidence that columnaris poses a significant threat to the farming of tambaqui (Colossoma macropomum), there remains a large gap in understanding the genetic and phenotypic diversities of columnaris‐causing bacteria (CCB).
Elcimara Cardoso Pereira   +8 more
wiley   +1 more source

The Complex Relation of Branched‐Chain Amino Acids and Inflammation in the Obesity and Diabetes Context

open access: yesObesity Reviews, EarlyView.
ABSTRACT In a scenario with increasing cases of obesity and diabetes worldwide, branched‐chain amino acids (BCAA) metabolism has become an important factor in the understanding of these pathologies. More recently, its chronic high plasma levels have been postulated, alongside glucose, inflammatory factors, and other molecules, as an important ...
Bernardo Starling‐Soares   +4 more
wiley   +1 more source

Assessing functional diversity and composition using multispectral images in Atlantic Forest restoration sites

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction By focusing on the specific functional traits of species, we can better understand how ecosystems function and respond to environmental change. However, field measurements of functional traits can be time‐consuming and costly, whereas remote sensing data can serve as viable alternatives for studying biodiversity at larger scales ...
Júlia Ayres de Oliveira   +8 more
wiley   +1 more source

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