Sea Water
Mostrando 1-12 de 375 artigos, teses e dissertações.
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1. AN ADAPTED UNMANNED AERIAL VEHICLE FOR ENVIRONMENTAL WATER SAMPLING
In this work an unmanned aerial vehicle (UAV) was adapted to be used as an environmental tool to collect water samples of sea, estuary, and mangrove for further analysis by gas chromatography with a mass detector (GC-MS). The sampling automated system was based on a microcontroller, a solenoid valve, and a peristaltic mini-pump that was coupled to a quadcopt
Química Nova. Publicado em: 2022
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2. Assessing the growth of Arctic charr (Salvelinus alpinus) (Linnaeus, 1758) in four salinities, under experimental conditions
Resumo Estudos em Salvelinus alpinus, Charr Ártico, indicam que tem baixa capacidade de hiposmorregulação ou adaptação ao mar em períodos de inverno nas águas do Ártico. A investigação determina o melhor nível de salinidade para cultivar esta espécie no Chile. Determinou-se o peso adequado para se unir ao mar pela análise da atividade da Na +, K
Braz. J. Biol.. Publicado em: 02/12/2019
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3. Proposal for an index of water quality for micro-watersheds under silviculture management
Resumo Neste trabalho objetivou-se elaborar um Índice de Qualidade das Águas (IQA) para o setor florestal. Para isso, monitoraram-se as características físicas e químicas da água: Ca, Cu, Fe, K, Mg, Na, P, S, Zn, CI, CO, Clor, Nitr, Sulf, Fosf, Amô, Glif, Alca, CE, Cor, DQO, DC, DC, OD, SS, SD, Sulfl, Temp, Turb e pH, em quatro microbacias hidrográfi
Ciênc. Florest.. Publicado em: 02/12/2019
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4. Nassarius foveolatus (Gastropoda, Nassariidae), a new record of an exotic species in Brazil
Abstract Exotic species are those that occur in an area beyond their natural limit and they are considered invasive when they cause harm to the economy, environment, or human health. In coastal environments, ballast water and inlays on the hull and other parts of vessels are the main ways of introducing invasive aquatic alien species. Nassarius foveolatus (D
Pap. Avulsos Zool.. Publicado em: 28/11/2019
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5. Sustainable development in the shadow of climate change
Resumo: Os planos de desenvolvimento em diferentes níveis – do local ao global – aspiram eliminar a pobreza, a fome, tornar acessível a assistência médica, criar melhores acessos à educação, melhorar o transporte, o emprego e a qualidade de vida, tudo nas próximas décadas. No entanto, esses planos colidem com a realidade da mudança climática,
Civitas, Rev. Ciênc. Soc.. Publicado em: 16/09/2019
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6. Proposta de gestão integrada das águas urbanas como estratégia de promoção da segurança hídrica: o caso de Fortaleza
RESUMO O estudo propõe a utilização de modelos de gestão integrada de águas urbanas como estratégia para a promoção da segurança hídrica e de preparação às secas. Ele foi construído em duas etapas: avaliação da vulnerabilidade do sistema hídrico; e proposição do modelo de gestão integrada de águas urbanas. Na primeira etapa, utilizou-se
Eng. Sanit. Ambient.. Publicado em: 30/05/2019
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7. Germination of Crotalaria and Lupinus (Fabaceae) seeds submitted to different pre-germination treatments and their effect on enzymatic activity during early germination
Resumo A maioria das sementes de leguminosas nativas e selvagens têm um tegumento rígido e impermeável, o que causa dormência física e impede a germinação, mesmo se as condições ambientais forem favoráveis. O estudo avaliou o efeito de tratamentos de escarificação sobre a germinação e a atividade enzimática de sementes de Crotalaria longirost
Braz. J. Biol.. Publicado em: 18/04/2019
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8. Evaluation of common bean genotypes for drought tolerance
ABSTRACT The aim of this study was to evaluate twelve genotypes of common bean for intermittent drought stress and for root growth angle. The water deficit experiments were conducted in 2015 and 2016in a randomized block experimental design with split plots and three replications. Two treatments were applied: an irrigated treatment and a water deficit treatm
Bragantia. Publicado em: 17/01/2019
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9. Notes on two shallow water isopods (Crustacea: Peracarida: Isopoda: Idoteidae) from Kino Bay, Gulf of California, Mexico
Abstract Two species of isopods of the family Idoteidae were collected in the same sample, among sea grasses, in the northern Gulf of California, Mexico. The first species, Synidotea harfordi Benedict, 1897, was more abundant (46 specimens) than the second species, Eusymmerus antennatus Richardson, 1899 (eight specimens). Synidotea harfordi has previously be
Nauplius. Publicado em: 03/12/2018
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10. Corrosión atmosférica acelerada en una fundición gris ASTM A48
ABSTRACT Due to the long times required to investigate atmospheric corrosion resistance of metals, data on the subject is scarce. One of these studies is the one made by Southwell et al., where the effect of corrosion in a cast gray iron during 16 years was studied in various environments. This research shows and discusses the behavior of cast gray iron when
Matéria (Rio J.). Publicado em: 19/07/2018
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11. Fit-for-Purpose ICP-MS Procedure Supporting Brazilian Regulations on Inorganic Constituents in Fresh and Saline Waters
This work aimed the development of an analytical procedure using inductively coupled plasma mass spectrometry (ICP-MS) in four modes of operation for simple and fast determination of Al, Ag, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Na, Ni, Pb, Sb, Se, Tl, Hg, V, U, and Zn in fresh and sea water samples attending simultaneously four Brazilian regula
J. Braz. Chem. Soc.. Publicado em: 2018-07
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12. Nutrient and salinity concentrations effects on quality and storability of cherry tomato fruits grown by hydroponic system
ABSTRACT This study was conducted to investigate the effects of nutrient and salinity concentrations on the quality of deepflow technique hydroponic system cultivated cherry tomatoes (Lycopersicon esculentum Mill ‘Unicorn’). The conditions were: (1) control (NS-1 × nutrient Solution, Electrical Conductivity – EC: 2.5 mS∙cm–1); (2) 2 × NS (2 × NS
Bragantia. Publicado em: 23/04/2018