Results 21 to 30 of about 955,636 (307)

Feasibility of Air Levitated Surface Stage for Lithography Tool

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
The application of light-weight drive technology into the lithography stage has been the current state of art because of minimization of power loss. The purpose of this article is to point out the so-called, "surface stage" which is composed of
Keiichi TANAKA
doaj   +1 more source

Effective technical ways to improve the vibro-centrifugal separator electric drive for grain cleaning

open access: yesJournal of Agricultural Engineering, 2021
Grain production economic efficiency mostly depends on the use of energy-efficient, resource-saving technological equipment that can ensure a high-quality technological process. In this regard, this paper considers ways to improve the vibrating drives of
Andrey Linenko   +4 more
doaj   +1 more source

Linear motor motion control using a learning feedforward controller [PDF]

open access: yes, 1997
The design and realization of an online learning motion controller for a linear motor is presented, and its usefulness is evaluated. The controller consists of two components: (1) a model-based feedback component, and (2) a learning feedforward component.
de Vries, Theodorus J.A.   +5 more
core   +4 more sources

Actively stressed marginal networks [PDF]

open access: yes, 2012
We study the effects of motor-generated stresses in disordered three dimensional fiber networks using a combination of a mean-field, effective medium theory, scaling analysis and a computational model.
C. P. Broedersz   +4 more
core   +3 more sources

Simulation Study on Direct-Drive Compressor with Electromagnetic Linear Actuator

open access: yesActuators, 2023
In order to enhance compressor efficiency and meet the requirements of energy conservation and environmental protection, this study designed a direct-drive compressor with an electromagnetic linear actuator.
Jianhui Zhu   +4 more
doaj   +1 more source

Proposal of a novel design for linear superconducting motor using 2G tape stacks [PDF]

open access: yes, 2018
This paper presents a new design for a su- perconducting linear motor (SLM). This SLM uses stacks of second-generation (2G) superconducting tapes, which are responsible for replacing yttrium barium copper oxide bulks. The proposed
Carrera i Vilanova, Miquel   +4 more
core   +2 more sources

Force and Velocity Ripple Reduction of the New Linear Motor

open access: yesIEEE Access, 2021
This study presents a new linear motor with an E-core stator and a homopolar permanent magnet (PM) mover. The velocity and force ripples of the motor are effectively reduced by an optimized structure and effective force compensation.
Meiling Tang   +3 more
doaj   +1 more source

Modelling Molecular Motors as Folding-Unfolding Cycles [PDF]

open access: yes, 1999
We propose a model for motor proteins based on a hierarchical Hamiltonian that we have previously introduced to describe protein folding. The proposed motor model has high efficiency and is consistent with a linear load-velocity response.
  +8 more
core   +1 more source

Design and Experiment of a Moving Magnet Actuator Based Jetting Dispenser

open access: yesApplied Sciences, 2019
Developing actuators to drive high-frequency jetting dispensers in the dispensing technology for electronic assembly applications has become a concern in recent years.
Minh-Sang Tran, Sheng-Jye Hwang
doaj   +1 more source

A Servo Control Algorithm Based on an Explicit Model Predictive Control and Extended State Observer with a Differential Compensator

open access: yesActuators
Positioning servo systems utilizing permanent magnet synchronous linear motors (PMSLMs) are conventionally governed by cascaded P-PI controllers, which, despite their simplicity and robustness, suffer from limited tracking and anti-disturbance ...
Zhuobo Dong   +4 more
doaj   +1 more source

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