Artificial Sand
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Selecting alternative sterile and non-sterile substrates for mycorrhizal inoculant production
ABSTRACT Alternative substrates were evaluated for mycorrhizal inoculants production considering the beneficial effects of arbuscular mycorrhizal fungi (AMF) for plants and environment. The first step of the experiment aimed at evaluating the potential of substrates produced from sugarcane bagasse (SB), coconut fibre (CF) and urban waste compost (UWC) to pro
Revista Ceres. Publicado em: 2022
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2. MODELING OF DRAFT AND ENERGY REQUIREMENTS OF A MOLDBOARD PLOW USING ARTIFICIAL NEURAL NETWORKS BASED ON TWO NOVEL VARIABLES
ABSTRACT Draft and energy requirements are the most important factors in the activities of farm machinery management owing to their role in matching the tractor with implements for different tillage operations. This study's aim was to model the draft and energy requirements of a moldboard plow based on two novel variables. The first was the soil texture inde
Eng. Agríc.. Publicado em: 2020-06
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3. Análise da influência do tipo de agregado miúdo nas características e dosagem de argamassas mistas
Resumo As argamassas de revestimento e assentamento de alvenaria com uso de areia artificial de britagem tem se tornado uma alternativa viável nos últimos anos, contudo têm-se grandes divergências quanto a preceitos de dosagem adequada para esses materiais. Diante disso, este trabalho objetiva estudar argamassas mistas de revestimento e assentamento de a
Ambient. constr.. Publicado em: 03/10/2019
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4. PEDOFUNCTIONS APPLIED TO THE LEAST LIMITING WATER RANGE TO ESTIMATE SOIL WATER CONTENT AT SPECIFIC POTENTIALS
ABSTRACT The least limiting water range (LLWR) is a soil physical quality indicator that receives much attention. It has been criticized and put to the test regarding mathematical models that compose it since they describe the behavior of soil physical attributes in a simplified way. This study aimed to assess the efficiency of some pedofunctions proposed in
Eng. Agríc.. Publicado em: 12/08/2019
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5. Determination of the optimal replacement content of Portland cement by stone powder using particle packing methods and analysis of the influence of the excess water on the consistency of pastes
Resumo O cimento Portland é considerado o componente de base com o maior impacto ambiental na construção civil, em termos de emissões de CO2. Quanto aos agregados, o processo de cominuição das rochas, além da areia artificial, gera pó de pedra que acaba sendo armazenado ao ar livre, gerando impactos ambientais. Assim, a substituição do cimento por
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
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6. Influence of artificial lights on the orientation of hatchlings of Eretmochelys imbricata in Pernambuco, Brazil
ABSTRACT Sea turtle hatchlings, in natural abiotic conditions, emerge from their nests at night and go directly to the sea, following the moonlight’s reflection in the ocean. Increased human activities such as tourism and artificial lights on the coasts, however, have interfered with the ability of sea turtle neonates to find their correct destination, neg
Zoologia (Curitiba). Publicado em: 19/10/2017
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7. Experimental infection of Phlebotomus perniciosus by bioluminescent Leishmania infantum using murine model and artificial feeder
Leishmaniasis is a vector-borne disease that is transmitted by sandflies and caused by obligate intracellular protozoa of the genus Leishmania. In the present study, we carried out a screening on the experimental infection of Phlebotomus pernioucus by bioluminescent Leishmania infantum using murine model and artificial feeder. We developed a real-time polyme
Mem. Inst. Oswaldo Cruz. Publicado em: 18/07/2016
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8. Movement of Heterorhabditis amazonensis and Steinernema arenarium in search of corn fall armyworm larvae in artificial conditions
Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae) is considered to be the main pest of maize crops in Brazil. Entomopathogenic nematodes (EPN) may be used to control this pest and exhibit different, unique abilities to search for their hosts. The movement of EPN in relation to S. frugiperda was evaluated. To test for horizontal movement, a styrofo
Scientia Agricola. Publicado em: 2012-06
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9. Avaliação do desempenho de pavimentos permeáveis / Experimental analysis of permeable pavements
This study aimed to evaluate the experimental performance of three types of permeable pavements constructed in three different structural conditions in order to control runoff in urbanized areas of the city of Goiania, Goias, adapting to the legal requirements and using local manufactured materials. It was evaluated nine experimental plots of 3.2 m as the fo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/09/2011
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10. Controles da produção primária em um Córrego de Mata Atlântica / Controls of primary production in an Atlantic Rainforest Stream
This dissertation consists of two chapters, each corresponding to an independent study. In an Atlantic Rainforest stream, Rio de Janeiro, Brazil, the effects of herbivores and of environmental controls on periphyton were studied. In the first experiment I tested the effects of the shrimp Potimirim glabra, an ecosystem engineer, on the metabolic parameters of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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11. Comparing the effectiveness of tracking methods for medium to large-sized mammals of Pantanal
Most Neotropical mammals are not easily observed in their habitats, and few studies have been conducted to compare the performance of methods designed to register their tracks. We compared the effectiveness of track registry between sand plots and two tracking methods that use artificial materials to record tracks: the sooted paper, and the plastic board met
Zoologia (Curitiba). Publicado em: 2011-04
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12. Substituição da areia natural por areia de britagem de rochas basálticas para argamassas de revestimento
The present study has the purpose of evaluate the artificial sand, in substitution the extration sand, in mortars of covering. The substitution of percentage of the extration sand was also evaluated. The artificial sand is an alternative to the sand of extration in mortars, in view of the gradual exhaustion of the deposits of sand next to the great consumers
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2010