Results 41 to 50 of about 9,715,056 (293)

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

open access: yesAdvanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler   +4 more
wiley   +1 more source

Design and research of universal test turntable control system

open access: yesDianzi Jishu Yingyong, 2019
A general test turntable was designed and developed for the test of the bomb chamber, and in-depth research on the system oscillations and long system response time that occur during the test of different load processes are given.
Guo Yanqing   +5 more
doaj   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

open access: yesAdvanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin   +16 more
wiley   +1 more source

Studies on SI engine simulation and air/fuel ratio control systems design [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.More stringent Euro 6 and LEV III emission standards will immediately begin execution on 2014 and 2015 respectively.
Bai, Yang
core   +6 more sources

Brushless DC motor speed control strategy of simulation research

open access: yesMATEC Web of Conferences, 2017
In view of the brushless DC motor speed regulation problem, an ideal control strategy is designed. Through the model and analysis of Brushless DC motor, the mathematical model of the brushless DC motor is obtained.
Xiang Wen, Zhen-qiang Li
doaj   +1 more source

Grey Wolf Particle Swarm Optimized Pump–Motor Servo System Constant Speed Control Strategy

open access: yesMachines, 2023
Aiming to solve the problems of poor dynamic response characteristics and the weak anti-jamming capability of the conventional proportional–integral–derivative (PID) controlled pump-motor servo system (PMSS) under the actual working environment, this ...
Shengdong Lu   +3 more
doaj   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

Fuzzy PID Controller for Injection Speed of Injection Molding Machine Based on GAPSO Optimization [PDF]

open access: yesJisuanji gongcheng
In the hydraulic control system of injection molding machines directly driven by servo motors for oil pumps, the industrial sector typically employs Proportional-Integral-Derivative (PID) control methods.
ZHANG Shaokun, SHEN Jiaming, HU Yanhai, FU Ting, WANG Zhouting
doaj   +1 more source

Research on Route Tracking Controller of Quadrotor UAV Based on Fuzzy Logic and RBF Neural Network

open access: yesIEEE Access, 2023
A proportional integral differential (PID) trajectory tracking control strategy based on fuzzy logic and RBF neural network is proposed for the trajectory stability tracking control of the quadrotor unmanned aerial vehicle (UAV) control system.
Kejin Jia   +4 more
doaj   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

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