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View article: Systematic Review of Biomass Supercritical Water Gasification for Energy Production
Systematic Review of Biomass Supercritical Water Gasification for Energy Production Open
Due to the growing global population, rising energy demands, and the environmental impacts of fossil fuel use, there is an urgent need for sustainable energy sources. Biomass conversion technologies have emerged as a promising solution, pa…
View article: Abordagem prática para a utilização do software octave: transferência de calor por condução unidimensional em regime transiente
Abordagem prática para a utilização do software octave: transferência de calor por condução unidimensional em regime transiente Open
This study investigates the use of Octave software as a tool to support the learning of concepts of heat transfer by one-dimensional conduction in a transient regime. This mixed-method research proposes and analyzes teaching plans for teac…
View article: Bioassessment of Macroinvertebrates in Coban Rais River, Oro-Oro Ombo Vilage, Post Administrative of Batu, Batu City
Bioassessment of Macroinvertebrates in Coban Rais River, Oro-Oro Ombo Vilage, Post Administrative of Batu, Batu City Open
Coban Rais, part of the Brantas River upstream area, is a tourist destination with natural waterfalls and anthropogenic activities affecting its river health. This study analyzed river health using macroinvertebrates sampled at nine statio…
View article: Numerical Study of Biomass Combustion Using a Transient State Approach
Numerical Study of Biomass Combustion Using a Transient State Approach Open
The behavior of the temperature and velocity, as well as the mass fraction of water (H2O) and wood inside a combustion chamber under specific operating conditions, were numerically investigated using a transient state model. For the comput…
View article: Modeling of a Biomass Cogeneration Plant from a Gasification Process
Modeling of a Biomass Cogeneration Plant from a Gasification Process Open
In recent decades, growing energy demand, coupled with concerns about climate change, has led to the exploration of sustainable energy sources. Among these, biomass gasification stands out as a promising method for generating heat and powe…
View article: Acceleration inside an aircraft in parabolic flight
Acceleration inside an aircraft in parabolic flight Open
This paper aims to present and analyse the acceleration data inside an aircraft during a parabolic flight. The data used were obtained during the flight from the automatic recordings of the aircraft and from a portable data logger with a b…
View article: A Comparison of Different Biomass Combustion Mechanisms in the Transient State
A Comparison of Different Biomass Combustion Mechanisms in the Transient State Open
Different combustion reaction process models were used to numerically study the behavior of the temperature, velocity, and turbulence fields, as well as to gain a better understanding of the differences between the reaction products obtain…
View article: Promotion of spatial visualization with GeoGebra and Qubism 3D software
Promotion of spatial visualization with GeoGebra and Qubism 3D software Open
Technology has driven new forms of teaching and learning with applications adapted to the various technological resources. For the discipline of Technical Drawing and Descriptive Geometry, technology has brought computer simulations that a…
View article: Application of GeoGebra in the Teaching of Descriptive Geometry: Sections of Solids
Application of GeoGebra in the Teaching of Descriptive Geometry: Sections of Solids Open
Technologies came to revolutionize the teaching of technical design; they brought resources that enabled 3D and 2D graphic simulation. The objective of this research is to understand how the implementation of the dynamic software GeoGebra …
View article: Forced convection heat transfer of nanofluids in turbulent flow in a flat tube of an automobile radiator
Forced convection heat transfer of nanofluids in turbulent flow in a flat tube of an automobile radiator Open
Nanofluids are fluids that can be applied in devices to obtain better performances (i.e. energy, heat transfer and others). Latest up to date literatures on nanofluids show that they can be used in engine cooling systems, solar water heati…
View article: A numerical study of the urban wood waste gasification
A numerical study of the urban wood waste gasification Open
Biomass gasification is currently considered a promising technology with regard to the sustainable use of bioenergy to produce power due to its renewable character and relative availability. In this work, an Eulerian model was used to stud…
View article: Cube test applied to the study of orthogonal projections: spatial development promoted by Qubism 3D Modeling
Cube test applied to the study of orthogonal projections: spatial development promoted by Qubism 3D Modeling Open
Education benefits from the globalization of effective tools that facilitate student learning. Education in Mozambique is still traditional without any technological resources, such as computers, data show, applied software and smartphones…
View article: Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest
Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest Open
Background: The interaction of blood flow with walls of blood vessels is central for the development and maintenance of cardiovascular health. The analysis of wall shear stress is, therefore, fundamental in hemodynamic studies. Objective: …
View article: Pulsating Flow Effects on Hydrodynamics in a Desalination Membrane Filled with Spacers
Pulsating Flow Effects on Hydrodynamics in a Desalination Membrane Filled with Spacers Open
A previously developed and validated two-dimensional computational fluid dynamics (CFD) model to study the hydrodynamics in a desalination membrane filled with spacers in zig-zag arrangements has been further developed to include the effec…
View article: IMPROVING STUDENT UNDERSTANDING OF THE CONCEPTS OF WEIGHT AND MASS WITH A COMPUTER SIMULATION
IMPROVING STUDENT UNDERSTANDING OF THE CONCEPTS OF WEIGHT AND MASS WITH A COMPUTER SIMULATION Open
Although weight and mass are considered fundamental concepts in physics, they are still not well understood by students. A computer simulation was designed to improve students’ learning of these concepts and compared it with other teaching…