Results 121 to 130 of about 1,709,387 (277)

“Anytime, Anywhere”: Online Language Tutoring Platforms and the Rise of the (Im)Mobile Language Teacher

open access: yesTESOL Quarterly, EarlyView.
Abstract This article examines how online tutoring platforms (OTPs) have facilitated new forms of (im)mobility—and discourses of (im)mobility—among online English tutors. Drawing on semi‐structured interviews with online tutors, the article critically interrogates OTPs' primary selling point: that online tutors can work “anytime, anywhere.” While OTPs ...
Nate Ming Curran
wiley   +1 more source

From Pedagogy to Practice: Using Microlearning to Prepare Teachers for GenAI and Digital Multimodal Composition

open access: yesTESOL Quarterly, EarlyView.
Abstract This teaching article explores how microlearning can support TESOL educators in developing the pedagogical and emotional capacities needed to use generative artificial intelligence (GenAI) tools to design and evaluate digital multimodal compositions (DMC).
Lucas Kohnke, Di Zou
wiley   +1 more source

Subsequent commutation failure suppression strategy of hybrid cascaded HVDC system based on coordinated control of CEC and VDCOL

open access: yesIET Energy Systems Integration
The inverter side of hybrid cascaded HVDC adopts the structure of Modular Multilevel Converter (MMC) in series with Line Commutated Converter (LCC). The complete system amalgamates the advantages of LCC with MMC, but it also makes the interaction process
He Wang   +4 more
doaj   +1 more source

Crafting the Future: Developing Graduate Programs Aligned With Demographic Trends

open access: yesNew Directions for Teaching and Learning, EarlyView.
ABSTRACT In response to changing student demographics and increasing budget constraints, many colleges and universities are reevaluating their graduate education strategies. While some institutions are striving to save costs via program cuts and layoffs, others are refocusing attention on student recruitment, specifically targeting working adults as a ...
Jennifer A. Owens   +2 more
wiley   +1 more source

A Novel Single‐Encounter‐Emphasise‐Attention Neural Network for Predictive Maintenance in Urban Infrastructure

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT The Riyadh Metro represents a significant project in Saudi Arabia, designed to transform urban transportation and reduce traffic congestion within the city. With six metro lines and 85 stations, the network is expected to serve millions of passengers daily, necessitating innovative digitally driven maintenance approaches to ensure reliable ...
Tawfeeq Shawly, Ahmed A. Alsheikhy
wiley   +1 more source

Signal Extraction and Clustering of Partial Discharge in Motor Insulation Using Temporal Correlation‐Based Clustering

open access: yesHigh Voltage, EarlyView.
ABSTRACT As one of the important links in energy transition and global energy interconnection, electric vehicles (EVs) are becoming increasingly major research topics in the field of energy. Partial discharge (PD) identification under repetitive impulsive voltages plays a pivotal role in evaluating the health of electric vehicle (EV) motor insulation ...
Li Wang   +7 more
wiley   +1 more source

Zero‐Current Switching Based Model Predictive Control of a Double‐Extended Overlapped Alternate Arm Converter Used in the VSC–HVDC System

open access: yesHigh Voltage, EarlyView.
ABSTRACT The alternate arm converter (AAC) is one of the most efficient multilevel topologies based on voltage source converters (VSCs), which has recently gained attention in various applications, particularly in high voltage direct current (HVDC) systems.
Ehsan Akbari, Milad Samady Shadlu
wiley   +1 more source

A Machine Learning-Assisted Framework for Commutation Failure Classification in High-Voltage Direct-Current (HVDC) Transmission Networks

open access: yes
This paper presents a machine-learning based strategy for accurate identification of commutation failures instances. A commutation-failure identification (CFI) block has been proposed and implemented, which utilizes the DC current and the valve-side AC ...
Bilal Anwar   +4 more
core   +1 more source

Comprehensive Design and Experimental Validation of 30 kV Ultra‐Fast Flexible Controllable Arresters for HVDC Systems

open access: yesHigh Voltage, EarlyView.
ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang   +4 more
wiley   +1 more source

Voltage interactions and commutation failure phenomena in multi-infeed HVDC systems

open access: yes, 2011
This research attempts to quantify the complex interactions between HVDC transmission schemes in a multi-infeed configuration, particularly with regard to the voltage interactions and the commutation failure phenomena.
Rahimi, Ebrahim
core  

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