Results 21 to 30 of about 10,674,148 (206)

Analysis of 3-DOF Cutting Stability of Titanium Alloy Helical Milling Based on PKM and Machining Quality Optimization

open access: yesMachines, 2022
Aiming at the requirements of titanium alloy holes in aircraft industry, the 3-DOF cutting stability and surface quality optimization of parallel kinematic manipulator (PKM) are studied. The variation of natural frequencies with the end-effector position
Xuda Qin   +5 more
doaj   +1 more source

The effects of text direction of different text lengths on Chinese reading

open access: yesScientific Reports, 2023
This study investigates the effects of text direction (horizontal and vertical) and length (long and short) on Chinese reading performance. The experiment enrolled 68 university students aged 19–29 years who were asked to read articles.
Yanqun Huang   +5 more
doaj   +1 more source

The Driving Waveform Design Method of Power-Law Fluid Piezoelectric Printing Based on Iterative Learning Control

open access: yesSensors, 2022
In some applications of piezoelectric three-dimensional inkjet printing, the materials used are power-law fluids as they are shear thinning. Their time-varying viscosities affect the droplet formation, which is determined by the volume flow rate at the ...
Ju Peng   +5 more
doaj   +1 more source

Design of a Flexible Capture Mechanism Inspired by Sea Anemone for Non-cooperative Targets

open access: yesChinese Journal of Mechanical Engineering, 2021
Robotic grippers have been used in industry as end-effectors but are usually limited to operations in pre-defined workspace. However, few devices can capture irregularly shaped dynamic targets in space, underwater and other unstructured environments.
Jiankun Yang   +5 more
doaj   +1 more source

Multiple-Beam Steering Using Graphene-Based Coding Metasurfaces

open access: yesMicromachines, 2023
Recently, the coding metasurface has gained significant attention due to its exceptional potential in controlling electromagnetic (EM) waves with the rapid development of wireless communication systems.
Bin Zheng   +5 more
doaj   +1 more source

Design for remanufacturing in China : a case study of electrical and electronic equipment [PDF]

open access: yes, 2013
As global demand for consumer goods continues to rise, the problem of waste electrical and electronic equipment (or e-waste) increases. E-waste is of particular concern to the world’s governments and environmentalists alike, not just because of the sheer
Hatcher, Gillian   +2 more
core   +4 more sources

Developing Overall Equipment Effectiveness Metrics for Prototype Precision Manufacturing [PDF]

open access: yes, 2011
Overall Equipment Effectiveness (OEE) is a powerful metric of manufacturing performance incorporating measures of the utilisation, yield and efficiency of a given process, machine or manufacturing line.
O\u27Neill, Michael   +2 more
core   +2 more sources

Life Cycle Assessment for Supporting Dimensioning Battery Storage Systems in Micro-Grids for Residential Applications

open access: yesEnergies, 2021
The current EU energy and climate policy targets a significant reduction of carbon dioxide emissions in the forthcoming years. Carbon pricing, embedded in the EU emissions trading system, aims at achieving emission reductions in a more evenly spread way ...
Maria M. Symeonidou   +2 more
doaj   +1 more source

Improved Adaptive Multi-Objective Particle Swarm Optimization of Sensor Layout for Shape Sensing with Inverse Finite Element Method

open access: yesSensors, 2022
The inverse finite element method (iFEM) is one of the most effective deformation reconstruction techniques for shape sensing, which is widely applied in structural health monitoring. The distribution of strain sensors affects the reconstruction accuracy
Xiaohan Li   +3 more
doaj   +1 more source

The Design and Implementation of a Mechanical Quick Connector for Medical Equipment

open access: yes, 2012
Several commonly used mechanical connectors in the field of medical equipment was enumerated and analyzed in this paper. A mechanical quick connector for medical equipment was designed. The mechanical structure was designed for quick connection needed in
Guixiang Li   +6 more
core   +1 more source

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