Results 61 to 70 of about 840,408 (254)

Biaxial Piezoelectrically Driven MEMS Mirror with Large Design Flexibility

Proceedings
In this work, a biaxial, piezoelectrically driven resonant MEMS mirror with large design flexibility is presented. After FEM-based design optimization to reduce material stress and thereby maximize the achievable total optical scanning angles, fabricated
Lena Wysocki, Patrick Schütt, Jörg Albers, Gunnar Wille, Erdem Yarar, Paul Raschdorf, Lianzhi Wen, Shanshan Gu-Stoppel   +7 more
doaj   +1 more source

PZT-Actuated and -Sensed Resonant Micromirrors with Large Scan Angles Applying Mechanical Leverage Amplification for Biaxial Scanning

Micromachines, 2017
This article presents design, fabrication and characterization of lead zirconate titanate (PZT)-actuated micromirrors, which enable extremely large scan angle of up to 106° and high frequency of 45 kHz simultaneously.
Shanshan Gu-Stoppel, Thorsten Giese, Hans-Joachim Quenzer, Ulrich Hofmann, Wolfgang Benecke   +4 more
doaj   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Influence of Particle Shape and Size in Copper‐Based Low‐Temperature Metallization Paste for Solar Cells

Advanced Engineering Materials, EarlyView.
Particle morphology controls the balance between printability and electrical connectivity in low‐temperature AgCu/Ag metallization pastes. Flake‐shaped AgCu particles form extended low‐resistance contacts, whereas spherical particles favor processability at high metal loading. Fine Ag particles further tune void filling and conductive‐network formation
O. Mhirsi, M. N. Wengenmeyr, J. Bartsch, B. E. Rapp   +3 more
wiley   +1 more source

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source

Magnetic Field Sensors for Non-Invasive Current Monitoring in Wire-Bond-Less Power Modules

Proceedings
A non-invasive implementation of a planar magnetoresistive sensor on top of copper interconnected power modules is proposed. This solution allows for the real-time monitoring of the electrical current flowing across the power modules.
Perla Malagò, Stefano Lumetti, Dominik Holzmann, Michael Ortner, Ali Roshanghias   +4 more
doaj   +1 more source

Modelling of Evanescent Field Scattering

Proceedings, 2020
Evanescent field particle scattering is a promising method for single particle detection. In this study, we performed a detailed numerical analysis to show the possibilities and limitations of analytical models for predicting the capabilities of this ...
Andreas Tortschanoff, Marcus Baumgart, Jaka Pribošek   +2 more
doaj   +1 more source

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

Advanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch, Anastasiya Toenjes, Matthias Steinbacher   +2 more
wiley   +1 more source

Tunable fractional-order photonic differentiator based on the inverse Raman scattering in a silicon microring resonator [PDF]

, 2015
A novel photonic fractional-order temporal differentiator is proposed based on the inverse Raman scattering (IRS) in the side-coupled silicon microring resonator.
Yu, Chongxiu, Li, Feng, Yan, Binbin, Yuan, Jinhui, Jin, Boyuan, Wu, Qiang, Wai, Ping-kong Alexander, Wang, Kuiru, Farrell, Gerald, Sang, Xinzhu   +9 more
core   +1 more source

Flexible, Fan-Out, Wafer-Level Packaging Using Polydimethylsiloxane and Printed Redistribution Layers

Proceedings
The hybrid integration of electronics in flexible substrates using fanned-out, wafer-level packaging (FOWLP) has recently gained significant attention, with numerous applications in wearable electronics, foldable displays, robotics, medical implants, and
Muhammad Hassan Malik, Muhammad Khan, Sherjeel Khan, Ali Roshanghias   +3 more
doaj   +1 more source