Results 111 to 120 of about 52,116 (289)

Electrochemical micromachining on nickel and nickel-based superalloys with two-tone sinusoidal signal

open access: yesElectrochemistry Communications
Electrochemical micromachining is an emerging technology in the machining field. This method offers several advantages such as exceptional surface quality, minimal cathode depletion, and a high elimination rate. Often, an ultrashort pulse power supply is
Xin Wang, Yan Peng
doaj   +1 more source

Multi‐material and dual‐stimulus coupled actuation micro‐gears for shape–rotation control in intelligent micro‐electro‐mechanical systems

open access: yesFlexMat, EarlyView.
A multi‐material and dual‐stimulus coupled actuation micro‐gear (MDCAMG) is developed via femtosecond‐laser 3D printing combined with magnetic nanoparticle absorption, enabling integrated environmental sensing and remote actuation at the microscale. The device incorporates a pH‐responsive hydrogel matrix for autonomous swelling/shrinking and a magnetic
Sida Peng, Shengzhi Sun, Jian Li, Yi Zhu
wiley   +1 more source

Surface- and bulk- micromachined two-dimensional scanner driven by angular vertical comb actuators [PDF]

open access: green, 2005
Wibool Piyawattanametha   +4 more
openalex   +1 more source

Microelectromechanical system‐based devices for the diagnosis, treatment, and monitoring of ophthalmic diseases

open access: yesInterdisciplinary Medicine, EarlyView.
Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng   +10 more
wiley   +1 more source

Novel Microelectromechanical Systems Image Reversal Fabrication Process Based on Robust SU-8 Masking Layers [PDF]

open access: yes, 2011
This paper discusses a novel fabrication process that uses a combination of negative and positive photoresists with positive tone photomasks, resulting in masking layers suitable for bulk micromachining high-aspect ratio microelectromechanical systems ...
Coutu, Ronald A., Jr.   +1 more
core   +1 more source

Fabrication of micro-structures for optically driven micromachines using two-photon photopolymerization of UV curing resins

open access: yes, 2008
Two-photon photopolymerization of UV curing resins is an attractive method for the fabrication of microscopic transparent objects with size in the tens of micrometers range.
Deitz D   +8 more
core   +1 more source

A Novel Slit Lamp‐Based System for 3D Ultrasound of the Eye

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives This study aims to develop and evaluate a novel slit‐lamp‐based system to acquire 3‐dimensional (3D) ultrasound volumes using conventional ultrasound probes. Methods A slit‐lamp adapter was 3D printed and connected with a linear actuator and graphical user interface (GUI) system to control movement and create volumes of 2‐dimensional scans ...
Claire E. Malley   +9 more
wiley   +1 more source

Advanced MMC-Based Hydrostatic Bearings for Enhanced Linear Motion in Ultraprecision and Micromachining Applications

open access: yesMicromachines
This study investigates the impact of material selection on the performance of linear slideways in ultraprecision machines used for freeform surface machining.
Ali Khaghani   +2 more
doaj   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

open access: yesLaser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das   +2 more
wiley   +1 more source

Micromachined tube-type of Si droplet generator [PDF]

open access: green, 2009
Hirotaka Hida   +4 more
openalex   +1 more source

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