Results 11 to 20 of about 196 (126)

Identification of threshold concepts involved in early electronics: Some new methods and results [PDF]

open access: yes, 2012
This manuscript reports the threshold concepts identified over a two-year study in early circuits and electronics courses. Some novel methods have been used to improve confidence in the identification process.
Harlow, Ann, Scott, Jonathan B.
core   +2 more sources

VISÃO GERAL DO PROJETO U=RISOLVE: FACILITANDO A (AUTO)APRENDIZAGEM DA ANÁLISE DE CIRCUITOS ELÉTRICOS [PDF]

open access: yes, 2023
Innovative teaching and self-learning paradigms and tools have been emerging in the past decade, in a trend to boost motivation and autonomy in new generations of Electrical and Computer Engineering (ECE) students.
Alves, Mário   +3 more
core   +2 more sources

Stethoscope acoustics [PDF]

open access: yes, 2022
Audible-frequency sounds from the human body are an invaluable diagnostic tool. For over 200 years, stethoscopes have been used to listen to these sounds. Despite this, the physics of how stethoscopes work remain poorly understood.
Nussbaumer, Maximilian
core   +1 more source

Reducing the Effect of Lightning on Step and Touch Voltages in a Grounding Grid Using a Nature-Inspired Genetic Algorithm With ATP-EMTP

open access: yesIEEE Access, 2019
This paper discusses the step and touch voltages, based on body resistance, in a grounding grid after a lightning strike at a 434-/21-kV substation. To ensure grounding grid safety, the maximum step and touch voltage should not exceed the safety criteria
Saeid Gholami Farkoush   +5 more
doaj   +1 more source

‘Getting stuck’ in analogue electronics: Threshold concepts as an explanatory model [PDF]

open access: yes, 2011
Could the challenge of mastering threshold concepts be a potential factor that influences a student's decision to continue in electronics engineering? This was the question that led to a collaborative research project between educational researchers and ...
Cowie, Bronwen   +3 more
core   +2 more sources

TFT Small Signal Model and Analysis [PDF]

open access: yes, 2016
We present an accurate small signal model for thin film transistors (TFTs) taking into account non-idealities such as contact resistance, parasitic capacitance, and threshold voltage shift. The model gives high accuracy in s-parameters, and the predicted
Cheng, X, Lee, S, Nathan, A
core   +2 more sources

A New Approach for Long-Term Stability Estimation Based on Voltage Profile Assessment for a Power Grid [PDF]

open access: yes, 2023
Load flow solutions refer to the steady-state stability of power systems and have a crucial role in the design and planning of slow-changing elements; e.g., in online tab changing actions, automatic generation control, over-excitation limiters and the ...
Aghamohammadi, Mohammad Reza   +5 more
core   +1 more source

Energy Harvesting of Magnetic Power-Line Noise [PDF]

open access: yes, 2011
The purpose of this study is to demonstrate the energy harvesting of power-line magnetic noise. To the best of the authors' knowledge, no research has yet been carried out to confirm this possibility.
Inoue, Shin-ichiro   +3 more
core   +3 more sources

Modeling, Analysis, and Control Design of a Single-Stage Boost Inverter [PDF]

open access: yes, 2021
A single-phase, single-stage, differential boost inverter comprises two independently-controlled boost DC-DC converters, with the load connected between their outputs.
Deken, Brad   +3 more
core   +2 more sources

Analytical Model of Torque-Prediction for a Novel Hybrid Rotor Permanent Magnet Machines

open access: yesIEEE Access, 2019
This paper presents an analytical method for predicting the electromagnetic performance in permanent magnet (PM) machine with the spoke-type rotor (STR) and a proposed hybrid rotor structure (HRS), respectively.
Yu-Xi Liu   +5 more
doaj   +1 more source

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