Water Masses
Mostrando 1-12 de 101 artigos, teses e dissertações.
-
1. Maximization of the use of casting sand residue in the production of fired ceramic bricks
Abstract In this study, a red ceramic was developed with the addition of sand residue from deburring and finishing processing of cast iron molds, replacing a variable fraction of the clay. The formulated masses were shaped by pressing and firing at different temperatures (850, 900 and 1000 ºC) at a heating rate of 180 ºC/h and 2-hour level. The bodies were
REM, Int. Eng. J.. Publicado em: 2020-09
-
2. COMPARISON OF ARROWROOT (Maranta arundinacea) AND CASSAVA STARCH EXTRACTION IN SEPARATION, CONCENTRATION, AND PURIFICATION USING A ROTATING SIEVE UNDER WATER
ABSTRACT Brazil is home to several plant species that exhibit potential for starch extraction. The arrowroot plant stands out owing to its South American origin. Arrowroot starch is especially important for fine confectionery, which is a high-value niche market. Thus, a small producer could benefit from the high prices of arrowroot starch. However, to have c
Eng. Agríc.. Publicado em: 2020-02
-
3. Salinity and stable oxygen isotope relationship in the Southwestern Atlantic: constraints to paleoclimate reconstructions
Abstract: Stable isotopes have been widely used in the literature both to discuss current ocean circulation processes, as well as to reconstitute paleoceanographic parameters. The distribution of oxygen and deuterium stable isotopes in seawater (δ18Osw and δDsw) at the Western Tropical South Atlantic border was investigated to better understand the main fr
An. Acad. Bras. Ciênc.. Publicado em: 30/09/2019
-
4. Water relations in parsley plants cultivated in brackish nutrient solutions of different cationic natures
RESUMO A análise da resposta das plantas à variabilidade catiônica das águas, somado ao componente osmótico, é imprescindível no contexto do estresse salino. Neste sentido, entre outubro de 2017 e fevereiro de 2018, em Recife, PE (8° 1’ 7” S e 34° 56” 53” O, e altitude de 6,5 m), o presente trabalho foi desenvolvido com o objetivo de avaliar
Rev. bras. eng. agríc. ambient.. Publicado em: 12/08/2019
-
5. Produção de agregado sintético de argila com reaproveitamento de resíduo de vidro
RESUMO É objetivo da construção civil, reduzir o peso das estruturas e consequentemente os custos com as fundações. A substituição de britas por agregados leves é a alternativa mais utilizada. No entanto, sobretudo no Brasil, só existe uma única fábrica de agregados leves localizada em São Paulo, sendo oportuna a pesquisa de matériasprimas para
Matéria (Rio J.). Publicado em: 20/05/2019
-
6. Distribution, diversity, and habitat partitioning of Scolecitrichidae species (Copepoda: Calanoida) down to 1,200 m in the Southwestern Atlantic Ocean
In this study, we analyzed the main distributional features of Scolecitrichidae species in the Southwestern Atlantic Ocean (northern region of Rio de Janeiro State) and determined and described their habitat partitioning, based on a night series of stratified samplings down to a depth of 1,200 m. A total of 18 species from seven genera were identified and gr
An. Acad. Bras. Ciênc.. Publicado em: 21/03/2019
-
7. Influence of Processing Variables on Clay-Based Ceramic Formulations
The properties of ceramic materials and microstructural changes are dependent on the raw materials from which they are made and on the manner in which they are processed, from the composition to the established thermal treatment, heating rate, and firing temperature. In this study, the influence of some processing parameters (formulation, maturation time, an
Mat. Res.. Publicado em: 11/03/2019
-
8. Uso de diopsídio em massas cerâmicas para grés sanitários
Resumo Atualmente, há uma severa escassez de jazimentos de feldspato de boa qualidade. Por outro lado, o diopsídio vem se mostrando um fundente alternativo para a indústria cerâmica, mas ainda pouco estudado. Assim, este trabalho avaliou o efeito da substituição parcial do feldspato pelo diopsídio em formulações para grés sanitário. Substituiu-se
Cerâmica. Publicado em: 2019-01
-
9. Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic
ABSTRACT The vertical distribution of copepod assemblages, ascertained from the surface down to 1,200 m, was investigated during two sampling periods (rainy and dry seasons), at four depths, in the oligotrophic waters of the southwestern Atlantic Ocean. Total density, diversity, and richness differed among sampling depths. Copepod density decreased with dept
Zoologia (Curitiba). Publicado em: 28/05/2018
-
10. Large-scale migration of a school shark, Galeorhinus galeus , in the Southwestern Atlantic
ABSTRACT Knowledge of the spatial and temporal distribution patterns of chondrichthyans is critical for their effective management. In this study we report and analyze a large-scale latitudinal migration (~ 1,425 km) of a female school shark in the Southwestern Atlantic shelf where it is currently classified as Critically Endangered. During the austral summe
Neotrop. ichthyol.. Publicado em: 15/03/2018
-
11. Diversity of retrievable heterotrophic bacteria in Kongsfjorden, an Arctic fjord
Abstract The diversity and abundance of retrievable pelagic heterotrophic bacteria in Kongsfjorden, an Arctic fjord, was studied during the summer of 2011 (June, August, and September). Retrievable bacterial load ranged from 103 to 107 CFU L−1 in June, while it was 104-106 CFU L−1 in August and September. Based on 16S rRNA gene sequence similarities, a h
Braz. J. Microbiol.. Publicado em: 2017-03
-
12. Effects of Leached Amylose and Amylopectin in Rice Cooking Liquidon Texture and Structure of Cooked Rice
ABSTRACT Effects of leached amylose (AM) and amylopectin (AP) on textural and morphological properties of cooked rice were investigated separately by replacing cooking liquid with AM and AP separated from pouring cooking liquid. The pouring of cooking water reduced the hardness (from 28.45 to 19.42N) and stickiness (from 1.74 to 1.19N·s) significantly. Howe
Braz. arch. biol. technol.. Publicado em: 20/10/2016