Results 31 to 40 of about 69,659 (270)

Acúmulo de metais pesados em cana-de-açúcar mediante a aplicação de lodo de esgoto e vinhaça Heavy metals accumulation in sugarcane after application in sewage sludge and vinasse

open access: yesEngenharia Agrícola, 2007
O uso de resíduos agroindustriais pode acumular metais pesados no solo e na planta. O objetivo deste trabalho foi avaliar os efeitos do lodo de esgoto e/ou vinhaça, aplicados no solo, disponibilizando Cd, Cr, Ni e Pb ao solo e quantificar as respectivas ...
Fábio Camilotti   +5 more
doaj   +1 more source

La contaminación proveniente de la industria curtiembre, una aproximación a la realidad ecuatoriana

open access: yesRevista Científica UISRAEL, 2022
El presente artículo se centró en describir los procesos típicos, materiales utilizados, principales riesgos para la salud derivados de la industria del curtido de pieles, así como el impacto ambiental asociado a dicha industria y actividad en la ...
María José Silva   +1 more
doaj   +1 more source

Winter Baseflow Calibration's Critical Role in Hydrological Modeling for the Pamir Region

open access: yesWater Resources Research, Volume 62, Issue 1, January 2026.
Abstract The Pamir Mountains, a critical water source for Central Asia, require accurate quantification of runoff components for water resource management under climate change. Uncertainties in precipitation data are known to greatly affect hydrological model accuracy, leading to the widespread use of multi‐data calibration methods to avoid internal ...
J. Huang   +4 more
wiley   +1 more source

Magnetic and Paleomagnetic Characterization of the Ivrea‐Verbano Lower Crust Body (NW Italy): Assessing the Magnetization of Variscan‐Age Lower Crust

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract The source of high‐intensity magnetic anomalies from (mostly Precambrian) lower crust of continent interiors has long been debated, as it requires speculative rocks yielding 2–6 A/m magnetization. We report on the magnetic and paleomagnetic investigation of the Ivrea‐Verbano Zone (IVZ), Western Alps, where metamorphic and intrusive lower crust
Gaia Siravo   +6 more
wiley   +1 more source

Estudo de extrações sequenciais de cromo em Resíduos sólidos do processamento de couro [PDF]

open access: yes, 2004
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.A cada ano novas tecnologias são implementadas para reduzir a geração de resíduos tóxicos.
BRUNS, Leandro
core  

Aplicación del ajuste de Rietveld para correlacionar la evolución microestructural de fundiciones blancas con 18 y 25% en Cromo, templadas en aceite y sucesivos revenidos, con el comportamiento frente al desgaste abrasivo y esfuerzos de flexión [PDF]

open access: yes, 2018
Through the application of Rietveld’s structural refinement method, the phases present in oil quenched and successively tempered treatments at 500 ºC of hypoeutectic white cast irons containing 18 and 25%-wt. Cr were identified.
Asensio Lozano, Juan   +2 more
core   +3 more sources

Acceleration of Abramov Glacier (Pamir‐Alay) retreat since the Little Ice Age

open access: yesBoreas, Volume 53, Issue 3, Page 415-429, July 2024.
The Abramov Glacier, situated in the Koksu River valley in the Pamir‐Alay Mountain range, was extensively monitored from 1965 to 1999 and again since 2011, providing valuable climate data. We apply cosmogenic 10Be exposure datings, ground penetrating radar measurements combined with numerical modelling as well as calculation of secular glacier mass ...
Tomas Saks   +5 more
wiley   +1 more source

Recuperação de prata e cromo dos resíduos gerados nos experimentos de titulações argentimétricas [PDF]

open access: yes, 2009
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Este trabalho apresenta os procedimentos de tratamento aplicado aos resíduos das titulações argentimétricas do laboratório de ensino de ...
Rosenbrock, Ligia Cleia Casas
core  

Plant‐based meat analogues marketed in Catalonia: analysis of contaminants, essential elements, microbiological and physicochemical status, dietary intake estimation and health risk assessment

open access: yesFood Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The latest barometer of food safety in Catalonia conducted by the Catalan Food Safety Agency (ACSA for its initials in Catalan) in 2021 shows that 28.7% of the population consumes meat analogues (substitutes). The main reasons for consuming this type of food are animal welfare, followed by environmental and health reasons.
Martí Nadal Lomas   +5 more
wiley   +1 more source

Microestrutura e propriedades magnéticas da hexaferrita de bário dopada com cromo e sinterizada por micro-ondas [PDF]

open access: yesCerâmica, 2014
Este trabalho teve por objetivo sinterizar cerâmicas de hexaferrita de bário comercial em forno de micro-ondas, visando obter propriedades magnéticas tão boas quanto aquelas obtidas por sinterização convencional.
W. S. Castro   +4 more
doaj  

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