Results 51 to 60 of about 2,366 (223)
An L-Slot Frequency Reconfigurable Antenna Based on MEMS Technology
Micromachines, 2023 Given the shortage of spectrum resources and the demand for communication systems of diminutive size, multi-function, and adaptive characteristics, this paper proposes an L-slot frequency reconfigurable antenna based on the MEMS switch.
Yu Chen +6 more
doaj +1 more source
Advanced Science, EarlyView.Nuclear metabolism oscillates during cell cycle progression. Quantitative chromatome proteomics and imaging reveal phase‐specific dynamics of PIP5K1A and nuclear PIP2, linking phosphatidylinositol metabolism to histone methylation. This work identifies nuclear lipid metabolism as a previously unrecognized regulatory axis coordinating chromatin ...
Antoni Gañez‐Zapater +13 more
wiley +1 more source
Instability and Drift Phenomena in Switching RF-MEMS Microsystems
Actuators, 2019 MEMS switches include mobile beams in their mechanical structure and these suspended parts are essential for the device functioning. This paper illustrates the most important instability phenomena related to MEMS switches.
Viviana Mulloni
doaj +1 more source
Advanced Science, EarlyView.This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang +13 more
wiley +1 more source
Beam Switching Reflectarray Monolithically Integrated With RF MEMS Switches
IEEE Transactions on Antennas and Propagation, 2012 A reflectarray antenna monolithically integrated with 90 RF MEMS switches has been designed and fabricated to achieve switching of the main beam. Aperture coupled microstrip patch antenna (ACMPA) elements are used to form a 10 × 10 element reconfigurable reflectarray antenna operating at 26.5 GHz.
Omer Bayraktar +2 more
openaire +2 more sources
Study of Free‐Space Optical Quantum Network: Review and Prospectives
Advanced Science, EarlyView.Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley +1 more source
Accelerated testing of multi-walled CNT composite electrical contacts for MEMS switches
, 2014 The use of gold-coated multi-walled carbon nanotube (Au/MWCNT) bilayer composite surfaces has been discussed in previous work as a method for improving the reliability of switch contacts [1, 2].
Lewis, Adam P. +7 more
core +1 more source
Using MEMS Capacitive Switches in Tunable RF Amplifiers
EURASIP Journal on Wireless Communications and Networking, 2006 A MEMS capacitive switch suitable for use in tunable RF amplifiers is described. A MEMS switch is designed, fabricated, and characterized with physical and RF measurements for inclusion in simulations.
Danson John, Plett Calvin, Tait Niall
doaj +2 more sources
Metasurface‐Enabled Active‐Like Passive Radar
Advanced Science, EarlyView.A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source
Meccanismi di degradazione in switch RF-MEMS per applicazioni spaziali sottoposti a stress impulsivi [PDF]
, 2022 Lo scopo di questa tesi è lo studio dei meccanismi di degradazione degli switch sottoposti a stess impulsivi. Il fine è quello di trovare un modo per accelerare i fenomeni di microwelding per testare eventuali sistemi di restoring.
Giaretta, Lauro
core