Results 41 to 50 of about 40,012 (240)

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

Advanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof, Jan Kopačin, Izidor Straus, Raphael Kriegl, Gaia Kravanja, Luka Hribar, Matija Jezeršek, Mikhail Shamonin, Gašper Kokot, Irena Drevenšek‐Olenik   +9 more
wiley   +1 more source

Motion of a Legged Bidirectional Miniature Piezoelectric Robot Based on Traveling Wave Generation

Micromachines, 2020
This article reports on the locomotion performance of a miniature robot that features 3D-printed rigid legs driven by linear traveling waves (TWs). The robot structure was a millimeter-sized rectangular glass plate with two piezoelectric patches attached,
Jorge Hernando-García, Jose Luis García-Caraballo, Víctor Ruiz-Díez, Jose Luis Sánchez-Rojas   +3 more
doaj   +1 more source

Investigations into packaging technology for membrane-based thermal flow sensors [PDF]

Journal of Sensors and Sensor Systems, 2015
A new packaging method to mount a membrane-based thermal flow sensor, flush with the surface, is presented. Therefore, a specific design for the housing is shown, which is also adaptable to other conditions.
G. Dumstorff, E. Brauns, W. Lang
doaj   +1 more source

Inflammatory Response‐Inspired Thermochromic Shield for Pneumatic Structures

Advanced Engineering Materials, EarlyView.
A thermochromic shield for pneumatic structures is developed, using anhydrous sodium acetate powder and thermochromic pigment‐included solution. In this shield composed of three layers, the exothermic and thermochromic reactions, followed by the mixture of both components, occur promptly with an incident of penetrating damage as a sign of initial ...
Hyun Jae Lee, Ryuma Niiyama
wiley   +1 more source

Engineered Porous Metal Structures via Electroplating in Two-Photon Polymerized Molds

Proceedings
We report the realization of metallic 3D microstructures, electroplated in two-photon polymerized molds. These molds are typically 150 × 150 × 30 µm3 in size and the smallest feature size is about 1 µm.
Ana Luiza Silveira Fiates, Sina Reede, Franziska Bollhorst, Lukas Hansen, Klaus Froehner, Michael J. Vellekoop   +5 more
doaj   +1 more source

Loss Determination Techniques for Piezoelectrics: A Review

Actuators, 2023
Nowadays, heat dissipation in electronic devices is one of the serious issues to be resolved in energy and environmental terms. Piezoelectric materials are being utilized in many electronic devices, yet the roadblock toward further miniaturization of ...
Yoonsang Park, Minkyu Choi, Kenji Uchino
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

A Tunable Self-Offloading Module for Plantar Pressure Regulation in Diabetic Patients

Applied System Innovation
Plantar pressure plays a crucial role in the pathogenesis of foot ulcers among patients with diabetes and peripheral polyneuropathy. Pressure relief is a key requirement for both the prevention and treatment of plantar ulcers.
Bhawnath Tiwari, Kenny Jeanmonod, Paolo Germano, Christian Koechli, Sofia Lydia Ntella, Zoltan Pataky, Yoan Civet, Yves Perriard   +7 more
doaj   +1 more source

An Impedance-Based Mold Sensor with on-Chip Optical Reference

Sensors, 2016
A new miniaturized sensor system with an internal optical reference for the detection of mold growth is presented. The sensor chip comprises a reaction chamber provided with a culture medium that promotes the growth of mold species from mold spores.
Poornachandra Papireddy Vinayaka, Sander van den Driesche, Roland Blank, Muhammad Waseem Tahir, Mathias Frodl, Walter Lang, Michael J. Vellekoop   +6 more
doaj   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source