Results 51 to 60 of about 34,809 (218)
Sensors, 2019 This study proposes a novel piezoelectric micromachined ultrasonic transducer (PMUT), fabricated on a metal foil. Using a bottom-up, cost-effective micromachining technique, the PMUTs made of electrodes, a piezoelectric film, or electrode-sandwiched ...
Guo-Hua Feng, Hua-Jin Liu
doaj +1 more source
Channel Optical Waveguides and Directional Couplers in GaAs -- Imbedded and Ridged [PDF]
, 1973 Two-channel imbedded directional couplers were fabricated with proton implantation, yielding complete light transfer in 2 mm. Ridged channel guides were fabricated by ion-micromachining epitaxial layers, and a method of directional coupling was ...
Garmire, E. +4 more
core +2 more sources
Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture
Advanced Healthcare Materials, EarlyView.This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus +9 more
wiley +1 more source
Micromachines, 2022 Robotics and micromachines are challenging topics in engineering [...]
Fortuna L., Buscarino A.
openaire +3 more sources
Advanced Healthcare Materials, EarlyView.Deployable medical devices typically need external stimuli to trigger deployment. However, external stimuli are difficult to supply within tissues. Here, we describe a strategy to deploy small‐scale structures into soft tissues after insertion without the need for any stimulus. We demonstrate deployment within a tissue phantom.
Yeh‐Chia Tseng +13 more
wiley +1 more source
MicromachinesA wax-based contact printing method to create microfluidic devices is demonstrated. This printing technology demonstrates a new pathway to rapid, cost-effective device prototyping, eliminating the use of expensive micromachining equipment and chemicals ...
Philip J. Schneider +7 more
doaj +1 more source
Nondiffracting Accelerating Waves: Weber waves and parabolic momentum [PDF]
, 2013 Diffraction is one of the universal phenomena of physics, and a way to overcome it has always represented a challenge for physicists. In order to control diffraction, the study of structured waves has become decisive. Here, we present a specific class of
Bandres, Miguel A. +1 more
core +1 more source
Photochemical Fuel Carrier Molecules for Robotic Embodied Energy
Advanced Materials, EarlyView.We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang +6 more
wiley +1 more source
Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
MicromachinesIn this paper, the theory, micromachining technology, and experimental results of the coupling of integrated magnetic film-based resonators for microwave signal filtering are presented.
Romolo Marcelli +3 more
doaj +1 more source
Micromachining of Soft Polymer Material applying Cryogenic Cooling
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008 Polydimethylsiloxane (PDMS) is one of the important materials for microfluidic chips. The pattern of micro channels on the PDMS plate is usually fabricated through the photolithography and micro molding process.
Yasuhiro KAKINUMA +2 more
doaj +1 more source