Results 221 to 230 of about 105,254 (314)

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov   +4 more
wiley   +1 more source

About the Ageing‐Induced Modifications of Physical‐Chemical and Electrical Properties of Polyimide (PMDA‐ODA) Under Gamma Radiation and High Temperatures

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study investigates the effects of radiation‐induced ageing on the physical, chemical, mechanical and electrical properties of Poly[4,4′‐oxydiphenylene‐ pyromellitimide] (PMDA‐ODA) polyimide, a high‐performance insulation material widely used in aerospace applications.
Simone Vincenzo Suraci   +3 more
wiley   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

open access: yesHigh Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat   +3 more
wiley   +1 more source

Integrating experimental and observational approaches facilitates scaling species interactions to biodiversity patterns

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract To investigate how niche and fitness differences determine the outcome of species interactions and shape local biodiversity patterns, research has typically focused on either simplified experimental systems that test specific mechanisms or observational studies where ...
Jared D. Huxley   +2 more
wiley   +1 more source

Femtosecond Soft X-ray Absorption Spectroscopy Identifies Metal-Centered S<sub>1</sub> Excited State of Cyanocobalamin. [PDF]

open access: yesJ Am Chem Soc
Ghodrati N   +28 more
europepmc   +1 more source

Deep blueprint: A literature review and guide to automated image classification for ecologists

open access: yesJournal of Animal Ecology, EarlyView.
A practical, literature‐grounded review that gives ecologists a clear, modular workflow for deep learning image classification. With code, GUIs and a novel deep sea case study (automated deep sea biotope classification) it lowers technical barriers and provides a usable blueprint for accelerating, standardising, and scaling ecological image analysis ...
Chloe A. Game   +2 more
wiley   +1 more source

Untested Feasibility as Progressive Performativity: Towards a Desirable Future Through Transformative Responsible Management Education

open access: yesBritish Journal of Management, EarlyView.
Abstract The call for transformation in Management Education (ME) has intensified amid global crises, including the climate emergency, social inequality, and recurrent corporate misconduct. While Responsible Management Education (RME) has emerged in response to these challenges, it often struggles to move beyond symbolic gestures towards substantive ...
Janette Brunstein   +2 more
wiley   +1 more source

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