Results 51 to 60 of about 8,664,315 (234)

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Student teachers' conceptions of mathematical proof

, 1997
The successful teaching of mathematical proof depends crucially on the subject knowledge of mathematics teachers. Yet the knowledge that teachers have of mathematics has become a matter of major concern in both pre-service and in-service teacher ...
Keith Jones, Jones, Keith
core   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Mathematics for teaching: observations from two case studies

South African Journal of Education, 2008
We report on two case studies in which we investigated mathematics for teaching. We were interested in the mathematical knowledge teachers need to know, and know how to use, in order to teach mathematics well. The two case studies focused on the teaching
Mercy Kazima, Vasen Pillay, Jill Adler
doaj  

Enhancing Efficient Mathematics Teaching and Learning through Professional Teachers' Standards: The Mediating Role of Technology in Education

International Journal of Educational Innovation and Research
The study analyzed the impact of professional standards on quality teaching and learning strategies among mathematics teachers in Ghana. 365 teachers from selected secondary schools in Greater Kumasi of the Ashanti Region were evaluated using structural ...
Emmanuel Oppong-Gyebi, Francis Ohene Boateng   +1 more
doaj   +1 more source

A Retinotopic Spiking Neural Network System for Accurate Recognition of Moving Objects Using NeuCube and Dynamic Vision Sensors

Frontiers in Computational Neuroscience, 2018
This paper introduces a new system for dynamic visual recognition that combines bio-inspired hardware with a brain-like spiking neural network. The system is designed to take data from a dynamic vision sensor (DVS) that simulates the functioning of the ...
Lukas Paulun, Lukas Paulun, Anne Wendt, Nikola Kasabov   +3 more
doaj   +1 more source

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

International comparisons of Foundation Phase number domain mathematics knowledge and practice standards

South African Journal of Education, 2015
Poor mathematics performance in schools is both a national and an international concern. Teachers ought to be equipped with relevant subject matter knowledge and pedagogical content knowledge as one way to address this problem.
Anja Human, Marthie van der Walt, Barbara Posthuma   +2 more
doaj  

Cracking the Code: ECEC Teachers’ Pedagogical Practices for Fostering Children’s Mathematical Knowledge and Computational Thinking with Coding Toys

Journal of Early Childhood Education Research
Coding in early childhood education provides diverse opportunities for developing children’s mathematical knowledge and computational thinking skills. Drawing on more than two years of pedagogical experience integrating coding toys into children’s play ...
Monika Kamola
doaj   +1 more source