Results 101 to 110 of about 93,761 (314)

A general magnetic-energy-based torque estimator: validation via a permanent-magnet motor drive [PDF]

open access: yes, 2008
This paper describes the use of the current–flux-linkage ($i{-}psi$ ) diagram to validate the performance of a general magnetic-energy-based torque estimator.
McGilp, M.I.   +5 more
core   +1 more source

Systematic Implementation and Performance Evaluation of Multiphase Power Converter in Medium Voltage Drive System

open access: yesIET Energy Systems Integration
Investigation of power converters for use in industrial drive applications finds that these converters are used low reliable components. To overcome this issue, in this paper, advanced power converters (multi‐pulse AC–DC and multilevel DC–AC converter ...
Bhim Singh, Rohit Kumar
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Electric System Design of SDA1 AC Drive Diesel Locomotive Exporting to Australia

open access: yes机车电传动, 2012
Components and performance of traction drive system, auxiliary drive system and control system of SDA1 locomotive were described systematically, and new technology and equipment application of the locomotive was introduced.
HAN Xiao   +4 more
doaj  

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Sensorless position estimation in fault-tolerant permanent magnet AC motor drives with redundancy.

open access: yes, 2010
Safety critical applications are heavily dependent on fault-tolerant motor drives being capable of continuing to operate satisfactorily under faults.
An, Jae Sam
core  

Performance of common-mode chokes [PDF]

open access: yes, 2010
A low-cost method for experimental investigation of common-mode chokes for reducing high-frequency motor ground-currents of inverter-based drive systems of several hundred kW is presented.
Heng, Bee See, Muetze, Annette
core   +1 more source

How natural light influences HSR drivers’ visual behavior

open access: yesFrontiers in Public Health
Existing studies have shown that the lighting environment is essential in influencing a driver’s visual behavior. Due to the pivotal role of high-speed railway (HSR) in worldwide transit, it is necessary to examine how HSR drivers’ visual behavior adjust
Pengfei Li   +10 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

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