Results 111 to 120 of about 1,624,283 (243)

Noise responses before and after noise abatement measures in a residential intervention project

open access: yes, 2015
In a residential area exposed to road traffic noise a socio-acoustic longitudinal study was conducted to investigate the effects of a large intervention project on acoustical conditions and resident's noise responses.
Kihlman, Tor   +10 more
core   +1 more source

Hybrid review and design case study of low-noise transceiver antenna for monitoring brain physiological changes

open access: yesDiscover Electronics
Monitoring changes in the brain is fundamental for diagnosing brain diseases, selecting appropriate treatments, and long-term management of patients with neurological disorders. Radio frequency (RF) antenna biosensor technologies have increasingly gained
Iresh Odana Ubesiri Narayana   +4 more
doaj   +1 more source

Millifluidic Synthesis of Core–Shell Resonators For Tunable Sonic BandGaps in Acoustic Metamaterials

open access: yesAdvanced Materials Interfaces, EarlyView.
Millimeter‐scale core–shell acoustic resonators are fabricated by a gravity‐assisted dripping approach and incorporated into epoxy composites at controlled volume fractions. The resulting alumina–core resonator composites show tunable low‐frequency acoustic attenuation, demonstrating a scalable route for integrating locally resonant metamaterial units ...
Colton Steiner   +5 more
wiley   +1 more source

Firewall insulation package simulation and noise auralisation for EV [PDF]

open access: yes, 2019
EV vehicle are now having a great influence on the market, with the number of vehicles sold increasing every year. For the engineer, the introduction of full electric vehicles means new challenges, a change in paradigms and new goals to achieve.
Qingmei Chang   +2 more
core  

Power-Delay-Area-Noise Margin Trade-offs in Positive-Feedback Source-Coupled Logic Gates

open access: yes, 2007
In this paper, Positive Feedback Source-Coupled Logic (PFSCL) gates are analyzed from a design point of view. The design space is explored through analytical relationships which relate the gate delay, power consumption and noise margin, which are modeled
ALIOTO, MASSIMO BRUNO CRIS   +3 more
core   +1 more source

Accurate Impairment Modeling and PCS-Based Cross-Layer Optimization for Throughput Enhancement in C+L-Band Optical Networks

open access: yesIEEE Open Journal of the Communications Society
To enhance the throughput of state-of-the-art C+L-band optical networks, three significant factors are considered: spectral efficiency (SE) enhancement, margin reduction, and resource provisioning techniques that coordinate the benefits of these two ...
Yuxin Xu   +4 more
doaj   +1 more source

3D Printed Photon Shield Assembly for Low‐Noise Visual Stimulation During Two‐Photon Imaging in Mice

open access: yesAdvanced Materials Technologies, EarlyView.
We present the Photon Shield, an open‐hardware system for low‐noise two‐photon calcium imaging during visual stimulation in mice. Combining a 3D‐printed headplate and rail‐mounted shield substantially reduces stray‐light contamination, as quantitatively verified. Functional validation confirms reliable cortical responses. Open design files enable broad
Gergely Katona   +6 more
wiley   +1 more source

Topologically Defective Lattice Potential‐Based Gain‐Dissipative Ising Annealer with Large Noise Margin

open access: yesAdvanced Physics Research
Gain‐dissipative Ising machines (GIMs) are annealers inspired by physical systems such as Ising spin glasses to solve combinatorial optimization problems.
Zhiqiang Liao   +5 more
doaj   +1 more source

Image Quality and Lesion Detectability with Low-Monoenergetic Imaging: A Study of Low-Concentration Iodine Contrast in Hepatic Multiphase CT for Chronic Liver Disease

open access: yesTomography
Background: This study aimed to evaluate whether low-concentration iodine contrast-enhanced multiphase low-monoenergetic computed tomography (LCLM CT; 270 mg I/mL, 40 keV) is non-inferior to standard-dose computed tomography (SDCT; 350 mg I/mL) in image ...
Jae En Kim   +5 more
doaj   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

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