Results 61 to 70 of about 709,030 (394)

Aluminized fiberglass insulation conforms to curved surfaces [PDF]

open access: yes, 1966
Layers of fiber glass with outer reflective films of vacuum-deposited aluminum or other reflective metal, provide thermal insulation which conforms to curved surfaces.

core   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Numerical Analysis, Experimental Validation, and Application of DC Interruption With Parallel Vacuum Interrupters

open access: yesInternational Transactions on Electrical Energy Systems
Large-capacity high voltage direct current circuit breakers (HVDC CBs) are critical equipment for achieving reliable operation of future multiterminal HVDC systems.
Siyuan Liu   +5 more
doaj   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

open access: yesAdvanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß   +7 more
wiley   +1 more source

A simple open‐switch fault detection and diagnosis method for permanent magnet synchronous machines drive system based on DC‐link current

open access: yesIET Power Electronics, 2023
In the industry, there is still a substantial amount of old in‐service equipment without a fault warning function. To provide an effective fault monitoring scheme for the in‐service motor drive system inside the equipment, this paper proposes a fault ...
Zhichao Chen   +4 more
doaj   +1 more source

A Compact High-Stability Nanosecond Pulse Test System Using Corona-Stabilized Switch and Coaxial Resistance Divider

open access: yesEnergies, 2023
Due to the lack of a standard nanosecond high-voltage pulse generator for sensor calibration, a high-stability nanosecond high-voltage pulse test system was developed in terms of circuit analysis, structural design, and performance test.
Jinru Sun   +5 more
doaj   +1 more source

Insulation for cryogenic tanks has reduced thickness and weight [PDF]

open access: yes, 1966
Dual seal insulation, consisting of an inner layer of sealed-cell Mylar honeycomb core and an outer helium purge channel of fiber glass reinforced phenolic honeycomb core, is used as a thin, lightweight insulation for external surfaces of cryogenic ...
Dumire, P. E.   +3 more
core   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou   +6 more
wiley   +1 more source

Trading Model Combining Electricity, Heating, and Cooling Under Multi-energy Demand Response

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
The emerging multi-energy system has brought new challenges and opportunities to energy business worldwide. To address the issues in multi-energy trading, this paper proposes an electricity, heating, and cooling trading model for the interaction between ...
Fangdi Zeng   +4 more
doaj   +1 more source

Wire stripper [PDF]

open access: yes, 1978
An insulation stripper is described which is especially useful for shielded wire, the stripper including a first pair of jaws with blades extending substantially perpendicular to the axis of the wire, and a second pair of jaws with blades extending ...
Economu, M. A.
core   +1 more source

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