Highly porous three-dimensional poly(lactide-co-glycolide) (PLGA) microfibrous scaffold prepared by electrospinning method: A comparison study with other PLGA type scaffolds on its biological evaluation

Graphene-based aerogels with a three-dimensional interconnected network were fabricated via the hydrothermal self-assembly and thermal-annealing process. The aerogels were characterized by means of scanning electron microscopy and atomic absorption spectroscopy. The graphene-based aerogels showed highly porous structure and adsorption capacity for heavy metal ions. Thus, they would be the promising materials for removal of heavy metal ions from water.

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Numerical Exploration via Least Squares Estimation on Three Dimensional MHD Yield Exhibiting Nanofluid Model with Porous Stretching Boundaries

Fractal and Fractional ◽

10.3390/fractalfract5040167 ◽

2021 ◽

Vol 5 (4) ◽

pp. 167

Author(s):

Tamour Zubair ◽

Muhammad Usman ◽

Umar Nazir ◽

Poom Kumam ◽

Muhammad Sohail

Keyword(s):

Differential Equations ◽

Numerical Study ◽

Nonlinear Partial Differential Equations ◽

Three Dimensional ◽

Least Square Method ◽

Least Square ◽

Comparison Study ◽

Nano Fluid ◽

Complicated Geometry ◽

Maple Code

The numerical study of a three-dimensional magneto-hydrodynamic (MHD) Casson nano-fluid with porous and stretchy boundaries is the focus of this paper. Radiation impacts are also supposed. A feasible similarity variable may convert a verbalized set of nonlinear “partial” differential equations (PDEs) into a system of nonlinear “ordinary” differential equations (ODEs). To investigate the solutions of the resulting dimensionless model, the least-square method is suggested and extended. Maple code is created for the expanded technique of determining model behaviour. Several simulations were run, and graphs were used to provide a thorough explanation of the important parameters on velocities, skin friction, local Nusselt number, and temperature. The comparison study attests that the suggested method is well-matched, trustworthy, and accurate for investigating the governing model’s answers. This method may be expanded to solve additional physical issues with complicated geometry.

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Assessing Virtual Reality's Potential for Teaching Abstract Science

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1071181397041002108 ◽

1997 ◽

Vol 41 (2) ◽

pp. 1208-1212 ◽

Cited By ~ 1

Author(s):

Marilyn C. Salzman ◽

Chris Dede ◽

R. Bowen Loftin ◽

Debra Sprague

Keyword(s):

Learning Experience ◽

Three Dimensional ◽

Early Research ◽

User Needs ◽

Comparison Study ◽

Simulator Sickness ◽

Computer Microworld ◽

Research Outcomes ◽

Computer Based ◽

Multisensory Information

Understanding how to leverage the features of immersive, three-dimensional (3-D) multisensory virtual reality to meet user needs presents a challenge for human factors researchers. This paper describes our approach to evaluating this medium's potential as a tool for teaching abstract science. It describes some of our early research outcomes and discusses an evaluation comparing a 3-D VR microworld to an alternative 2-D computer-based microworld. Both are simulations in which students learn about electrostatics. The outcomes of the comparison study suggest: 1) the immersive 3-D VR microworld facilitated conceptual and three-dimensional learning that the 2-D computer microworld did not, and 2) VR's multisensory information aided students who found the electrostatics concepts challenging. As a whole, our research suggests that VR's immersive representational abilities have promise for teaching and for visualization. It also demonstrates that characteristics of the learning experience such as usability, motivation, and simulator sickness are important part of assessing this medium's potential.

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