Results 51 to 60 of about 1,599,200 (292)

Material Coupling in Hybrid Neuromorphic Devices: From Fundamentals to System‐Level Applications

Advanced Functional Materials, EarlyView.
Hybrid neuromorphic devices utilize heterointerfaces between emerging semiconductors, where charge transfer and trapping, ion or defect modulation, and photogating are translated into synaptic functions. This paper discusses coupling strategies that tailor interfacial electronic and ionic properties in organic semiconductors, metal oxides, two ...
Minsu So, Sunwoo Jeong, Youngmin Han, Fabrizio Torricelli, Hocheon Yoo, Junhwan Choi   +5 more
wiley   +1 more source

Acoustic liner optimisation and noise propagation through turbofan engine intake ducts

, 2013
The research in this thesis explores the prediction of fan noise propagation through turbofan engine intakes and its radiation to the far-field. The performance of acoustic liners installed in intakes to attenuate noise is the focus of the study.
Kewin, Matthew Fergus
core   +1 more source

Side Effect of the Use of Acoustic Barriers Observed in the Infra Range

Archives of Acoustics, 2020
Acoustic barriers which are positioned along traffic lanes are designed to protect the surroundings from excessive noise. Such structures are to reverberate, diffract and damp the propagating acoustic waves.
Andrzej Czesław STANIEK, Cezary BARTMAŃSKI   +1 more
doaj   +1 more source

Experimental study of the noise generated by urban high-voltage electrical substations

Measurement: Sensors, 2022
This work describes the results of sound pressure measurements carried out in the vicinity of ten high voltage electrical substations operating in areas of considerable urban density in the State of Rio de Janeiro. The work was motivated as a strategy to
Juan José Gómez Acosta, Maurício N. Frota, Carlos R. Hall Barbosa, Thiago D'Angelo Oliveira   +3 more
doaj   +1 more source

Loud Noise Exposure and Acoustic Neuroma [PDF]

American Journal of Epidemiology, 2014
The results from studies of loud noise exposure and acoustic neuroma are conflicting. A population-based case-control study of 451 acoustic neuroma patients and 710 age-, sex-, and region-matched controls was conducted in Sweden between 2002 and 2007.
James L, Fisher, David, Pettersson, Sadie, Palmisano, Judith A, Schwartzbaum, Colin G, Edwards, Tiit, Mathiesen, Michaela, Prochazka, Tommy, Bergenheim, Rut, Florentzson, Henrik, Harder, Gunnar, Nyberg, Peter, Siesjö, Maria, Feychting   +12 more
openaire   +2 more sources

Biodegradable Conductors for Implantable and Wearable Transient Bioelectronics

Advanced Functional Materials, EarlyView.
Biodegradable conductors are essential building blocks for transient bioelectronics, enabling temporary sensing, stimulation, and energy transfer while eliminating the need for device retrieval. This review summarizes biodegradable metals, conducting polymers, ionic conductors, and conductive composites, highlighting degradation mechanisms, material ...
Yicheng Zhu, Yijun Liu, Naoji Matsuhisa
wiley   +1 more source

Busy Urban Soundscape Underwater: Acoustic Indicators vs. Hydrophone Data

Urban Science
Urban noise pollution extends into aquatic environments, influencing underwater ecosystems. This study examines the effectiveness of acoustic indicators in characterizing urban underwater soundscapes using hydrophone recordings.
Kamil Monastyrski, Grzegorz Chrobak, Rengin Aslanoğlu, Jacob Wilkerson, Jan K. Kazak   +4 more
doaj   +1 more source

History of acoustic beamforming [PDF]

, 2006
The development of the beamforming method (also called microphone antenna, phased array of microphones, acoustic telescope, or acoustic camera) is reviewed in this paper.
Michel, U., Ulf Michel
core  

An investigation of the acoustic characteristics of a compression ignition engine operating with biodiesel blends [PDF]

, 2012
In this paper, an experimental investigation has been carried out on the acoustic characteristics of a compression ignition (CI) engine running with biodiesel blends under steady state operating conditions. The experiment was conducted on a four-cylinder,
Gu, Fengshou, Ball, Andrew, Zhen, Dong, Wang, R., Ball, A. D., Gu, F., Zhen, D., Yuan, X., Tesfa, Belachew, Tesfa, B.   +9 more
core   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source