Results 151 to 160 of about 258,969 (330)
Micromachined vibratory gyroscopes controlled by a high order band-pass sigma delta modulator.
, 2007 —This work reports on the design of novel closed-loop control systems for the sense mode of a vibratory-rate gyroscope based on a high-order sigma-delta modulator (SDM). A low-pass and two distinctive bandpass topologies are derived, and their advantages
Dong, Yufeng +2 more
core +1 more source
Author Correction: Realization of quasicrystalline quadrupole topological insulators in electrical circuits [PDF]
Communications Physics, 2021 Ying Wang +13 more
openaire +3 more sources
The Reconstruction of Peripheral Auditory Circuit: Recent Advances and Future Challenges
Advanced Science, EarlyView.This paper summarizes the potential of biomaterials, stem cells, and gene editing technologies in the regeneration of inner ear hair cells, spiral ganglion neurons, and inner ear organoids. Challenges and potential developments are discussed and explored.
Zhe Li +3 more
wiley +1 more source
Experiments and Computational Fluid Dynamics on Vapor and Gas Cavitation for Oil Hydraulics
Chemical Engineering &Technology, Volume 46, Issue 1, Page 147-157, January 2023., 2023 A computational fluid dynamics cavitation model for vapor and gas cavitation in hydraulic oil is presented, parameterized, and validated. For numerous operating points, cavitation in a realistic valve geometry is visualized using shadowgraphs and high‐speed cameras. Vapor and gas cavitation are experimentally separated by complete degassing of the oil.
Sven Osterland +2 more
wiley +1 more source
Non-Hermitian boundary and interface states in nonreciprocal higher-order topological metals and electrical circuits [PDF]
Physical Review B, 2019 Non-Hermitian skin-edge states emerge only at one edge in one-dimensional nonreciprocal chains, where all states are localized at the edge irrespective of eigenvalues. The bulk topological number is the winding number associated with the complex energy spectrum, which is well defined for metals.
openaire +3 more sources
Wearable Standalone Sensing Systems for Smart Agriculture
Advanced Science, EarlyView.This review explores the development and application of wearable sensing systems for plant health monitoring. It examines different types of wearable plant sensors, including their design, working principles, and material choices, with an emphasis on their suitability for real‐world agricultural applications.
Dongpil Kim +5 more
wiley +1 more source
A Hollow Shell‐Lattice Soft Robot in Flexible Pipelines with Flowing Fluids
Advanced Science, EarlyView.This study proposes a novel shell‐lattice robot with hollow bodies, capable of crawling through pipes with flowing fluids of high velocities and viscosities and mixed with impurities. The robot also features capabilities of crawling with high payloads, in curved pipes, and unthethered crawling. These unique properties make this robot high promising for
Di Guo, Yiqiang Wang, Zhan Kang
wiley +1 more source
International Journal of Circuit Theory and Applications, Volume 50, Issue 12, Page 4179-4190, December 2022., 2022 An accurate, high‐gain, high‐speed, fully differential difference amplifier for current sensing utilizing the chopper approach was implemented using a high chopping frequency in the MHz range. The usability of this circuit is demonstrated for a 500 kHz rectangular signal with an amplitude of only approximately 2 mV and a chopping frequency of 20 MHz. A
Christian D. Matthus, Frank Ellinger
wiley +1 more source
A 2.4-GHz, 2.2-W, 2-V fully-integrated CMOS circular-geometry active-transformer power amplifier [PDF]
, 2001 A 2.4-GHz, 2.2-W, 2-V fully integrated circular geometry power amplifier with 50 Ω input and output matching is fabricated using 2.5V, 0.35 pm CMOS transistors. It can also produce 450mW using a 1V supply. Harmonic suppression is 64dB or better.
Aoki, Ichiro +3 more
core
Advanced Science, EarlyView.This work presents a direct, resist‐free patterning method for metal–organic frameworks using extreme ultraviolet (EUV) lithography, achieving a resolution of 40 nm. The EUV mechanism is investigated through synchrotron in situ X‐ray photoelectron spectroscopy.
Weina Li +7 more
wiley +1 more source