Results 31 to 40 of about 66,415 (209)

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

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

Journal 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, Fabio Speranza, Liliana Minelli, Michele Zucali, Eugenio Fazio, Chiara Caricchi, Lilla Spagnuolo   +6 more
wiley   +1 more source

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

Engenharia 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, Marcos O. Marques, Itamar Andrioli, Alysson R. da Silva, Luiz C. Tasso Junior, Fabio O. de Nobile   +5 more
doaj   +1 more source

Obtención de pigmentos cerámicos de perovskita CaTiO3 dopada con cromo y vanadio por descomposición metal-orgánica (MOD) [PDF]

, 2012
The Metal Organic Decomposition (MOD) route based on the chelation of a solution of metallic salts (usually nitrates) by policarboxylic acid (oxalic and citric), applied to the synthesis of ceramic pigments based on chromium and vanadium doped CaTiO3 ...
Badenes March, José Antonio, CERRO, SARA, Galindo Llorach, Roberto, García López, Araceli, Gargori, Carina, Llusar, Mario, Monrós Tomás, Guillermo   +6 more
core   +3 more sources

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

Boreas, 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, Vincent Rinterknecht, Ivan Lavrentiev, Gabriel Béra, Enrico Mattea, Martin Hoelzle   +5 more
wiley   +1 more source

Validación de método para tratamiento de residuos en dos análisis bromatológicos realizados en CIPA S.A [PDF]

, 2017
Este documento propone la implementación de un tratamiento de residuos para dos análisis bromatológicos: recuperación del cromo hexavalente en “Determinación de Cloruros” (Norma Técnica Colombiana, NTC 696) y recuperación de cloroformo en “Determinación ...
Montoya Navarrete, Carlos Humberto, Pineda Lopera, Jhon David   +1 more
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Plant‐based meat analogues marketed in Catalonia: analysis of contaminants, essential elements, microbiological and physicochemical status, dietary intake estimation and health risk assessment

Food 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, Nieves González Paradell, Victòria Castell Garralda, Laura Alcalde Sanz, Josep Calderón, Sara Sabaté   +5 more
wiley   +1 more source

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

, 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
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Molecular testing in salivary gland cytopathology: A practical overview in conjunction with the Milan system

Cytopathology, Volume 35, Issue 3, Page 330-343, May 2024.
Significant advances have been made in the molecular characterization of salivary gland neoplasms. In this scenario, molecular testing may be adopted to refine cytological diagnosis, in particular in challenging cases. Over the past decades, molecular characterization of salivary gland neoplasms has significantly improved. In this setting, the adoption
Anna Maria Carillo, Caterina De Luca, Pasquale Pisapia, Elena Vigliar, Kristian Ikenberg, Sandra N. Freiberger, Giancarlo Troncone, Niels J. Rupp, Claudio Bellevicine   +8 more
wiley   +1 more source

Evaluación de los productos de la reducción de un concentrado cromífero en la obtención de recubrimientos difusivos de carburos de cromo

Revista CENIC Ciencias Químicas, 2009
Las materias primas tradicionalmente utilizadas como fuentes portadoras de cromo (ferrocromo, cromo en polvo y óxido de cromo) en procesos de cromado difusivo presentan un elevado costo y en el caso del ferrocromo, dificultades para su trituración. En el
Jesús Eduardo González Ruiz, Rafael Quintana Puchol, Alejandro Rodríguez Cristo, Alejandro Duffus Scout   +3 more
doaj