1. Mathematical modeling of whey foam mat drying

ABSTRACT This study aimed to fit mathematical models to whey foam drying processes in different air temperature conditions, to determine the effective diffusion coefficient and to obtain the activation energy. For foam formation, 5.0% Emustab® was added to the serum in mass and subjected to stirring in a domestic shaker for 15 min. After, it was spread onto

Rev. Ceres. Publicado em: 2021-08

2. A review of systems biology research of anxiety disorders

The development of “omic” technologies and deep phenotyping may facilitate a systems biology approach to understanding anxiety disorders. Systems biology approaches incorporate data from multiple modalities (e.g., genomic, neuroimaging) with functional analyses (e.g., animal and tissue culture models) and mathematical modeling (e.g., machine learning) to

Braz. J. Psychiatry. Publicado em: 2021-08

3. FUZZY MODELING OF THE EFFECTS OF DIFFERENT IRRIGATION DEPTH IN RADISH CROP. PART II: BIOMETRIC VARIABLES ANALYSIS

ABSTRACT In order to estimate the response of biometric variables in different irrigation depths in radish crop, as well as their relations in the development of the crop, a fuzzy mathematical analysis was carried out from irrigation with depths of different percentages of the crop evapotranspiration (ETc), using Gaussian pertinence functions for the input v

Eng. Agríc.. Publicado em: 2021-05

4. FUZZY MODELING IN ORANGE PRODUCTION UNDER DIFFERENT DOSES OF SEWAGE SLUDGE AND WASTEWATER

ABSTRACT The present work aimed to develop mathematical fuzzy models to evaluate the effects of different doses of sewage sludge and irrigation with wastewater and potable water. Such models were elaborated from an experiment carried out at the Faculty of Agronomic Sciences, in the Department of Soil and Environmental Resources, from the Sao Paulo State Univ

Eng. Agríc.. Publicado em: 2021-04

5. Physical and mathematical modeling of inclusion behavior in a tundish with gas curtain

Abstract Gas injection in the tundish has been considered as an alternative to optimizing inclusion removal from steels. In the present study, physical and mathematical modeling were used to investigate the effect of gas injection in the tundish on the inclusion removal efficiency. The physical model is a 1/3 reduced scale of an industrial two-strand tundish

REM, Int. Eng. J.. Publicado em: 2020-12

6. IMPORTANCE OF CROP PRODUCTIVITY AND EQUIPMENT LIFETIME IN THE STRATEGIC AND TACTICAL MANAGEMENT OF SUGARCANE HARVESTERS

ABSTRACT Recently, Brazilian agriculture and the mechanization process have been improved and developed, particularly in sugarcane cultivation. The developed processes should adopt suitable management practices in terms of the technical, economic, and operational logistical aspects. As a management tool, the present study aimed to measure the impact of the a

Eng. Agríc.. Publicado em: 2020-10

7. Simultaneous Transfer of Na+, K+, and Fe2+ Ions During Salting of Precooked Mushroom (Agaricus bisporus): Mathematical Modeling, Optimization, and Experimental Validation

The champignon mushroom has no antinutritional factors that can affect iron bioavailability. It is considered a functional food and can provide health benefits by presenting bioactive components. The simultaneous transfer of Na+, K+ and Fe2+ in the pre-cooked mushroom (Agaricus bisporus) was modeled and simulated by the finite element method (FEM). The Biot

J. Braz. Chem. Soc.. Publicado em: 2020-06

8. MATHEMATICAL MODELING FOR DETERMINATION OF THE MAXIMUM MASS TRANSFER CAPACITY OF COWPEA BEANS

ABSTRACT Cowpea beans are of great socioeconomic expression for the rural population in North and Northeastern Brazil. This legume is rich in essential nutrients and exhibits great resistance to water stress. However, for grain processing, it is fundamental to study legume behavior during the hydration process. This study aims to evaluate the mass transfer o

Eng. Agríc.. Publicado em: 2020-04

9. Effect of drying temperature on color and desorption characteristics of oyster mushroom

Abstract Oyster mushroom (Pleurotus ostreatus) slices were dried in a hot air dryer at three temperatures (45, 55 and 65 °C). The sorption isotherm of dried samples in the water activity (aw) range of 0.556-0.970 was also determined at three temperature levels. Moisture desorption isotherms were obtained from changes in water activities of oyster mushroom s

Food Sci. Technol. Publicado em: 2020-03

10. Mathematical Modeling of the Transesterification Reaction by Finite Elements: Optimization of Kinetic Parameters Using the Simplex Sequential Method

The use of biodiesel as fuel has been presented as a viable alternative in the search for renewable energies. It can be produced from the transesterification reaction of vegetable oils with methanol in the presence of sodium or potassium hydroxide as catalysts. In the present research, the transesterification reaction of soybean oil was modeled considering t

J. Braz. Chem. Soc.. Publicado em: 2020-02

11. A modelagem matemática nos anos iniciais como perspectiva para o ensino de matemática: um panorama de publicações brasileiras em periódicos (de 2009 a 2018)

RESUMO Este artigo apresenta um panorama de produções científicas relativas à modelagem matemática nos anos iniciais do ensino fundamental do Brasil como nova perspectiva para o ensino de matemática, tendo-se por referência o período de 2009 a 2018. Esta investigação foi realizada segundo os critérios da pesquisa qualitativa, utilizando os caracte

Educ. rev.. Publicado em: 05/12/2019

12. Perspectivas atuais de pesquisa em Educação Matemática no Peru

RESUMO O artigo apresenta perspectivas atuais em pesquisa na área de Educação Matemática no Peru. Para tanto, faz-se uma revisão do desenvolvimento da área, das diferentes instituições que a compõem, dos grupos e linhas de pesquisa e dos avanços atuais associados aos projetos nessa área. O levantamento das atuais produções e pesquisas evidenciad

Educ. rev.. Publicado em: 05/12/2019