Results 61 to 70 of about 28,947 (291)

Feedback cooling of the normal modes of a massive electromechanical system to submillikelvin temperature

, 2008
We apply a feedback cooling technique to simultaneously cool the three electromechanical normal modes of the ton-scale resonant-bar gravitational wave detector AURIGA.
Bignotto, M., Bonaldi, M., Cerdonio, M., Conti, L., Falferi, P., Liguori, N., Longo, S., Mezzena, R., Ortolan, A., Prodi, G. A., Salemi, F., Taffarello, L., Vedovato, G., Vinante, A., Vitale, S., Zendri, J. -P.   +15 more
core   +1 more source

Multibit Ferroelectric HfZrO Memcapacitor for Non‐Volatile Analogue Memory and Reconfigurable Electronics

Advanced Functional Materials, EarlyView.
Ferroelectric memcapacitors enable non‐volatile, voltage‐programmable capacitance tuning for adaptive electronics. A TiN/HfZrO/TiN device stack demonstrates more than eight stable capacitance states within a 24 pF memory window in compact 60 ×$\times$ 60 μm2$\umu{\rm m}^{2}$ devices at low operating voltages.
Deepika Yadav, Spyros Stathopoulos, Patrick Foster, Andreas Tsiamis, Mohamed Awadein, Hannah Levene, Themis Prodromakis   +6 more
wiley   +1 more source

Flexible and stretchable power sources for wearable electronics. [PDF]

, 2017
Flexible and stretchable power sources represent a key technology for the realization of wearable electronics. Developing flexible and stretchable batteries with mechanical endurance that is on par with commercial standards and offer compliance while ...
Arias, Ana Claudia, Davies, Greg, Deckman, Igal, Duey, Jerica K, Lechêne, Balthazar P, Ostfeld, Aminy E, Steingart, Daniel A, Wang, Michael, Zamarayeva, Alla M   +8 more
core   +2 more sources

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

Design of standalone wireless impedance matching (SWIM) system for RF coils in MRI

Scientific Reports, 2022
The radio frequency (RF) power transfer efficiency of transmit coils and the signal-to-noise ratio (SNR) at the receive signal chain are directly dependent on the impedance matching condition presented by a loaded coil, tuned to the Larmor frequency. Sub-
Sri Kirthi Kandala, Sung-Min Sohn
doaj   +1 more source

Effects of acute fatigue on the volitional and magnetically-evoked electromechanical delay of the knee flexors in males and females [PDF]

, 2007
Neuromuscular performance capabilities, including those measured by evoked responses, may be adversely affected by fatigue; however, the capability of the neuromuscular system to initiate muscle force rapidly under these circumstances is yet to be ...
AJ McComas, AYF Chan, BD Beynnon, BR Mandelbaum, C Minshull, Claire Minshull, D Chu, David Rees, DE Rassier, E Arendt, EM Wojtys, FH Fu, H Johansson, I Tsuji, I Vivodtzev, J Gray, JT Hopkins, K Sahlin, LJ Huston, M Solomonow, M Solomonow, MA Moore, MI Polkey, Michelle Walters-Edwards, MJ Ireland, ML Latash, Nigel Gleeson, NP Gleeson, NP Gleeson, NP Gleeson, P Sbriccoli, PR Cavanagh, PV Komi, RM Norman, Roger Eston, S Zhou, S Zhou, S Zhou, S Zhou, SJ Shultz, T Horita, TH Mercer, V Strojnik   +42 more
core   +1 more source

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

Advanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang, Jiwon Ryu, Dae‐Hee Cho, YoungHoi Cho, Yewon Hwang, Haram Lee, Dong Hoe Kim, Byeong‐Kwon Ju, Seok Chung, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Gabseok Seo, Phillip Lee   +15 more
wiley   +1 more source

Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics [PDF]

, 2018
Radio-frequency communication systems have long used bulk- and surface-acoustic-wave devices supporting ultrasonic mechanical waves to manipulate and sense signals. These devices have greatly improved our ability to process microwaves by interfacing them
Baets, Roel, Safavi-Naeini, Amir H., Van Laer, Raphaël, Van Thourhout, Dries   +3 more
core   +2 more sources

High Pressure Densification Investigation of Li3PS4 and Li6PS5Cl Solid Electrolytes using Combine X‐Ray Diffraction, X‐Ray Absorption Tomography and Ionic Measurement

Advanced Functional Materials, EarlyView.
We used multiple analytical techniques at the Psiché beamline, Synchrotron Soleil, and at D20 instrument in Institut Laue Langevin, to study the densification of thiophosphate solid electrolytes Li3PS4 and Li6PS5Cl. Our combined X‐ray diffraction, absorption tomography, absorption density, neutron power diffraction, and ionic conductivity analyses ...
Oskar Thompson, Ove Korjus, Adrien Fauchier‐Magnan, Clément Albin, Sergio F. Mayer, Emmanuelle Suard, Thomas Hansen, Laura Henry, Nicolas Guignot, Vittoria Pischedda, Sylvie Le Floch, Claire Villevieille   +11 more
wiley   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source