1. Polyurethane/poly (Ionic Liquids) Cellulosic Composites and their Evaluation for Separation of CO2 from Natural Gas

The development of both versatile and inexpensive sorbents for CO2/CH4 separation has become one of the greatest challenges to the environment and natural gas processing. This study reports the preparation and characterization of polyurethane (PU)/ cellulose based poly(ionic liquid)(CPIL) composites for CO2/CH4 separation. PU matrix was reinforced with CPIL

Mat. Res.. Publicado em: 20/01/2020

2. Sustainability of Biorefinery Processes Based on Baru Biomass Waste

The aims of the current study are to investigate the composition of biomass from baru processing and to explore the feasibility of valuing it through the development of bioproducts such as fermentable sugars, furanics and biochar. Baru (Dipteryx alata Vog.) waste (endocarp and mesocarp) has great energetic potential to produce bioproducts due to its chemical

J. Braz. Chem. Soc.. Publicado em: 20/01/2020

3. Técnicas de produção e tratamento de dados qualitativos em teses e dissertações sobre tecnologias educacionais digitais utilizando a pesquisa-ação

Resumo: São muitas as técnicas de produção e tratamento de dados utilizadas em pesquisas qualitativas, como entrevistas, observações, diários de campo, fotografias, vídeos, entre outras. Essa grande quantidade de técnicas gera certa dúvida no momento de escolher quais se enquadram melhor na pesquisa a ser realizada. Nesse sentido, este estudo tem p

Rev. Bras. Estud. Pedagog.. Publicado em: 17/01/2020

4. Chemical composition and fatty acids profile of chocolates produced with different cocoa (Theobroma cacao L.) cultivars

Abstract The objective of the present study was to characterize the physicochemical composition and to quantify the fatty acids of chocolates produced from different cocoa varieties (Theobroma cacao L.) cultivated in the Southern Region of Bahia. Nine samples of monovarietal chocolates were evaluated, according to their physical, thermal and fatty acid profi

Food Sci. Technol. Publicado em: 17/01/2020

5. PRELIMINARY ASSESSMENT OF THE PROCESSING OF HIGH-ACIDITY FATTY MATERIALS USING SOLID CATALYSTS FOR THE OBTAINMENT OF FATTY ACID METHYL ESTERS

Abstract This work presents the processing of a high-acidity oil through sequential reactions of esterification using montmorillonite K10 and transesterification using zinc monoglycerolate. Since these solids had not been employed along with this approach beforehand, the objective of this work is to provide a general insight of the proposed process and demon

Braz. J. Chem. Eng.. Publicado em: 13/01/2020

6. IMPLICATION OF MICROWAVES ON THE EXTRACTION PROCESS OF RICE BRAN PROTEIN

Abstract During the processing of rice grain, a wide range of by-products are generated, including Rice Bran (RB), which presents rich composition, offering great potential for application in the food and pharmaceutical industries. Thus, the objective of this work was to evaluate the best operating variables in the extraction of rice bran protein through alk

Braz. J. Chem. Eng.. Publicado em: 13/01/2020

7. Towards Qualification of Friction Stir Welding to AA5083-O and AA5052-O Aluminum Alloys

Friction Stir Welding (FSW) is an excellent alternative for joining dissimilar and similar materials in comparison to conventional welding processes. In this sense, this work aims at qualifying FSW to similar AA5083-O and AA5052-O aluminum alloys, with 6.35 mm thickness, in a CNC machining center. Therefore, four welding experiments were undertaken. At first

Mat. Res.. Publicado em: 13/01/2020

8. ATHLETE'S ROLE IDENTITY: AN INTEGRATIVE REVIEW OF MEASUREMENT INSTRUMENTS

RESUMO Introdução: A identidade do papel de atleta (identidade atlética - IA) pode ser entendida como um aspecto de autoconceito, mais especificamente como uma estrutura cognitiva que orienta e organiza o processamento das informações autorrelacionadas. Objetivo: Verificar os estudos que desenvolveram ou validaram os instrumentos para mensurar a IA e

Rev Bras Med Esporte. Publicado em: 13/01/2020

9. Multi-Element Evaluation in Black Pepper (Piper nigrum L.) According to the Processing

Black pepper is one of the most consumed spices worldwide and the evaluation of trace elements content is essential to promote consumer safety. In this study, concentrations of the elements As, Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, Se, V and Zn was determined in samples of black peppercorn (n = 25) and ground black pepper (n = 25) to verify how processing affects

J. Braz. Chem. Soc.. Publicado em: 10/01/2020

10. The study of responses to auditory processing tests in the elderly

RESUMO Objetivo: gerar valores de referência para diferentes testes de processamento auditivo central, investigando a influência da audição periférica e considerando escolaridade e cognição, na população idosa. Métodos: pesquisa de caráter prospectivo, quantitativo e transversal. A casuística foi composta por 23 idosos, com idades entre 60 a 81

Rev. CEFAC. Publicado em: 10/01/2020

11. ETIFICACIÓN, LA TRANSFORMACIÓN DIGITAL DE LO MORAL

ABSTRACT The convergence of three areas of technological application - Big Data, Artificial Intelligence and the Internet of Things - means the diferent area of human activity can be hyperconnected, algorithmised and datafied to optimise processes involving production, communication, healthcare and relationships. The aim is to increase their efficiency, effe

Kriterion. Publicado em: 10/01/2020

12. Microwave Assisted Ultra-Fast Method to Synthesize Carbonate-Phosphates, Na3MCO3PO4 (M = Mn, Fe, Co, Ni) - Relevant Materials Applied in Sodium-Ion Batteries

Although largely used in mobiles and electric vehicles applications, insertion batteries based on Li-ion technology are high-cost devices. These applications require high-performance energy storage systems with high-energy and high-power densities, which are better attained by Li-ion technology. However, stationary applications such as power plants and unint

J. Braz. Chem. Soc.. Publicado em: 10/01/2020