Results 71 to 80 of about 1,322,598 (284)

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

The Effectiveness of Metacognition Strategies Training on Problem-Solving Function in Guidance School Students

open access: yesJournal of Rehabilitation, 2003
Objective: The main purpose of this study is to assign the effect and role of metacognition strategies trainings in problem-solving function. In other word, a comparison among-different educational methods in these skills and assigning the most effective
Ali Reza Jazayeri, Ma'soumeh Esmaeili
doaj  

PROBLEM SOLVING IN SCHOOL MATHEMATICS BASED ON HEURISTIC STRATEGIES

open access: yesJournal on Efficiency and Responsibility in Education and Science, 2014
The paper describes one of the ways of developing pupils’ creative approach to problem solving. The described experiment is a part of a longitudinal research focusing on improvement of culture of problem solving by pupils.
NOVOTNÁ, Jarmila   +4 more
doaj   +1 more source

Mathematical Problem-Solving Heuristics Among Student Teachers

open access: yesJournal on Efficiency and Responsibility in Education and Science, 2018
The main purpose of the study is to understand the mathematical problem-solving strategies among student teachers. This study used both quantitative and qualitative type of research.
Melanie Gurat
doaj   +1 more source

Industry Speaks Strategies for Solving the Food Inflation Problem [PDF]

open access: yes
This article addresses some of the partial truths and misinformation in media reporting over the booming food prices debate. Many studies are only linking biofuels to the inflation cause, while ignoring several other factors such as the growth of the ...
Neves, Marcos Fava
core   +1 more source

Pupils' use of visual mathematical problem solving strategies [PDF]

open access: yes, 2017
An exploration of how the Y1 children used visualisation to understand and work through activities involving telling the time to the hour. The Year 1 class had been exposed to some formal mathematical methods, but were encouraged to explore and present ...
Loughran, E, McGrogan, N
core  

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

How do Head-mounted Displays and Planning Strategy Influence Problem-solving-based Learning in Introductory Electrical Circuit Design?

open access: yesEducational Technology & Society, 2020
The high-fidelity and interactivity afforded by head-mounted displays (HMD) has a potential to improve learning in problem-solving contexts. However, there is a lack of studies with mixed findings on the efficacy of HMD in the development of problem ...
Bian Wu, Yiling Hu, Minhong Wang
doaj  

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