Results 61 to 70 of about 39,446 (240)

Experimental Test bed to De-Risk the Navy Advanced Development Model [PDF]

open access: yes, 2017
This paper presents a reduced scale demonstration test-bed at the University of Texas’ Center for Electromechanics (UT-CEM) which is well equipped to support the development and assessment of the anticipated Navy Advanced Development Model (ADM).
Feng, X   +6 more
core   +1 more source

Multivariate Tests for Comparing Lifetimes of Parallel Systems

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Life testing of engineering systems with dependent components requires robust multivariate methods. Parametric approaches depend on restrictive assumptions, limiting their use in complex or unknown lifetime distribution settings. This study evaluates nonparametric methods for comparing parallel system lifetimes under minimal sample ...
Niladri Chakraborty   +2 more
wiley   +1 more source

Simulation study on arc motion process of DC miniature circuit breakers

open access: yesAIP Advances, 2023
Based on the theory of magnetohydrodynamics, a mathematical model of air arc in the arc extinguishing chamber of a DC miniature circuit breaker was established. By coupling external circuit characteristics and contact movement process, the motion process
Dezhi Xiong   +3 more
doaj   +1 more source

Charge Transport Across Single Molecules at the Metal–Superconductor Interface

open access: yesSmall, EarlyView.
The evolution of Andreev reflection in single‐molecule junctions is probed with the decreasing distance between a normal‐metal tip and a conventional superconductor. Andreev reflection becomes most effective when a molecular orbital straddles the Fermi level.
Lorenz Meyer   +5 more
wiley   +1 more source

Two terminal current limiter [PDF]

open access: yes, 1970
Two terminal device protects dc electronic circuits and experimental solid state devices, and replaces fuses and circuit breakers directly. The device consists of two transistors and two resistors and draws its necessary supply voltage from power source ...
Doubt, L. S.
core   +1 more source

Ensuring Battery Safety in Electric Vehicles: Challenges, Developments, and Future Perspectives

open access: yesSmall, EarlyView.
This review explores machine learning techniques to predict and mitigate thermal runaway in lithium‐ion batteries. By analyzing failure mechanisms and safety issues, the study develops data‐driven models for early detection. It proposes safety enhancement strategies for battery design and maintenance, offering actionable insights to prevent ...
Oumayma ELJarray   +7 more
wiley   +1 more source

Electrospun PAN Membrane Loaded with AgInP2Se6 Nanosheets for Triboelectric Energy Harvesting

open access: yesSmall, EarlyView.
Exfoliated AgInP2Se6 nanosheets are incorporated into a polyacrylonitrile (PAN) polymer matrix by electrospinning and applied for the first time in a triboelectric nanogenerator (TENG). The hybrid membrane delivers strong electrical output and exhibits reversible humidity sensitivity, responding rapidly to changes in relative humidity.
Filipa M. Oliveira   +10 more
wiley   +1 more source

A database ATP simulated waveforms of shunt reactor switching cases with vacuum breakers on motor circuits [PDF]

open access: yes, 2009
This paper presents a database ATP (Alternative Transient Program) simulated waveforms for shunt reactor switching cases with vacuum breakers in motor circuits following interruption of the starting current.
Kam, Shui-cheong, Ledwich, Gerard
core   +1 more source

Strained 2D Semiconductor Lateral Heterojunctions via Grayscale Thermal‐Scanning Probe Lithography

open access: yesSmall Science, EarlyView.
A novel strain‐engineering approach using grayscale thermal‐Scanning Probe Lithography tailors the optoelectronic response of 2D Transition‐Metal Dichalcogenide (TMD) layers. Nanofaceted templates control local strain in MoS2, enabling engineered carrier extraction in asymmetric Au‐MoS2 lateral heterojunction nanoarrays, as detected by Kelvin Probe ...
Giorgio Zambito   +8 more
wiley   +1 more source

Investigations into the Influence of generator Design on Rating of Circuit Breakers in a High Voltage Transmission Network [PDF]

open access: yes, 2003
This paper examines the impact of the network modification produced by the replacement of an existing conventional generator with a high voltage directly connected generator on the adequacy of existing circuit breakers distributed throughout a high ...
McDonald, J. D. F., Saha, T. K.
core   +1 more source

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