Composition Construction
Mostrando 13-24 de 249 artigos, teses e dissertações.
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13. Determinação da densidade de líquidos imiscíveis pelo princípio de Stevin
Resumo Este artigo apresenta uma sequência didática acompanhada por um aparato experimental de baixo custo e fácil montagem e manuseio, a serem aplicados ao estudo da hidrostática e, particularmente, de uma composição de líquidos imiscíveis, como a água e o óleo. O Princípio de Stevin é utilizado para analisar a densidade de líquidos, tendo como
Rev. Bras. Ensino Fís.. Publicado em: 10/01/2019
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14. Utilization of gypsum from construction and demolition waste in Portland cement mortar
Abstract Civil construction generates the largest amount of construction and demolition waste (CDW), most of which is not reused and is discarded as inert waste in landfills. The purpose of this study was to evaluate the feasibility of reusing gypsum recovered from CDW in the preparation of mortar. This material was examined to determine its specific mass, m
Cerâmica. Publicado em: 2019-01
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15. Predicting post-absorptive protein and amino acid metabolism
ABSTRACT Sustainable production of adequate quantities of food to support a growing human population is a worldwide goal. Under current feeding conditions in the United States, dairy cattle convert dietary nitrogen to milk nitrogen with 25% efficiency. The remaining 75% is excreted, which contributes to air and water quality problems and reduces economic per
R. Bras. Zootec.. Publicado em: 29/11/2018
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16. Physico-chemical characterization of centrifuged sludge from the Tamanduá water treatment plant (Foz do Iguaçu, PR)
ABSTRACT The water treatment process generates a residue called water treatment plant (WTP) sludge, which needs to be correctly characterized to ensure appropriate disposal or reuse. This study aimed to characterize the centrifuged sludge produced at the Tamanduá WTP, Iguaçu Falls City, Brazil, and considered opportunities for its reuse in the production o
Matéria (Rio J.). Publicado em: 18/10/2018
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17. La imagen de los Hombres de Campo: Relaciones de género racializadas en fotografías del Archivo General de la Nación (Argentina)*
Abstract This article analyses images from the General Archive of the Nation (Argentina), focalizing on the photographs composition, and on the classification of materials. It wonders about the visual construction of a male emblematic national figure, the “gaucho” or “man of countryside”. It highlights two main features: the domestication of nature,
Cad. Pagu. Publicado em: 19/07/2018
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18. Migración internacional y precariedad laboral. El caso de la industria de la construcción en Chile
Abstract In recent decades, the construction industry has undergone significant changes in labour management, working conditions and workforce composition, with a significant increase on the recruitment of migrant workers. The aim of this paper is to analyze the relationship between subcontracting as a management model, the working conditions that prevail wi
REMHU, Rev. Interdiscip. Mobil. Hum.. Publicado em: 2017-04
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19. Membrane permeabilization of colistin toward pan-drug resistant Gram-negative isolates
Abstract Pan-drug resistant Gram-negative bacteria, being resistant to most available antibiotics, represent a huge threat to the medical community. Colistin is considered the last therapeutic option for patients in hospital settings. Thus, we were concerned in this study to demonstrate the membrane permeabilizing activity of colistin focusing on investigati
Braz. J. Microbiol.. Publicado em: 2016-06
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20. Exploratory factor analysis of Kenny Music Performance Anxiety Inventory (K-MPAI) in a Brazilian musician sample
Abstract Background The Kenny Music Performance Anxiety Inventory (K-MPAI) is very significant among the available instruments which measures Musical Performance Anxiety (MPA). Objective The aim of this study is to find evidence of validity of the Kenny Music Performance Anxiety Inventory (K-MPAI), in its translated and adapted Brazilian version, through t
Arch. Clin. Psychiatry (São Paulo). Publicado em: 2015-10
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21. VENDOR AND LOGISTICS PROVIDER SELECTION IN THE CONSTRUCTION SECTOR: A PROBABILISTIC PREFERENCES COMPOSITION APPROACH
The main purpose of the present work is to present an application of the probabilisticpreferences composition method to the vendor and carrier selection process in the construction sector of the Southern Region of Rio de Janeiro state, in Brazil. The traditional measures associated with vendor and carrier evaluation are considered in the model and are combin
Pesqui. Oper.. Publicado em: 2015-08
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22. Construction of a New Aluminum(III) Cation Selective Electrode Based on 12-Crown-4 as an Ionophore
This article describes the fabrication of a novel and selective polyvinylchloride (PVC) membrane potentiometric sensor for Al3+ cation based on 12-crown-4 (12C4) as an ionophore. The electrode was prepared by coating the surface of a graphite rod by a membrane containing PVC as a plastic matrix, dibutylphthalate (DBP) as plasticizer, 12C4 as an ionophore and
J. Braz. Chem. Soc.. Publicado em: 2015-05
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23. Strength and Durability of Mortar Using Cork Waste Ash as Cement Replacement
Cork powder, the major waste from cork processing industries, is generated from grinding, cutting and finishing operations throughout the industrial cork process. Cork powder has been used mainly as fuel in cork industries. Cork waste ash is usually landfilled but if efficiently used in cement based construction materials it could contribute to sustainabilit
Mat. Res.. Publicado em: 01/07/2014
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24. Compressive strength, microstructure and hydration products of hybrid alkaline cements
Ordinary Portland cement (OPC) is the dominant binder in the construction industry with a global production that currently reaches a total of 3 Gt per year. As a consequence, the cement industry's contribution to the total worldwide CO2 emissions is of about 7% of the total emissions. Publications on the field of alkali-activated binders (also termed geopoly
Mat. Res.. Publicado em: 27/06/2014