Results 151 to 160 of about 3,664,430 (285)

Broadband wearable acoustic sensing for continuous cardiopulmonary monitoring. [PDF]

open access: yesMicrosyst Nanoeng
Wu P   +7 more
europepmc   +1 more source

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects

open access: yesAdvanced Science, EarlyView.
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Yi Wang   +8 more
wiley   +1 more source

Longitudinal Awake Mouse Brain Imaging Using Functional Ultrasound and Functional Ultrasound Localization Microscopy

open access: yesAdvanced Science, EarlyView.
Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang   +9 more
wiley   +1 more source

A Molecularly Defined Midbrain Circuit Mechanism for Sound‐Driven Defensive Behavior and Anxiety

open access: yesAdvanced Science, EarlyView.
Schematic diagram showing the Cbln2+ ICx–dPAG circuit for sound‐driven defensive and anxiety‐like behaviors. ABSTRACT The innate defense behaviors in response to threatening sounds play a fundamental role in survival. However, the neural circuits that detect threat‐relevant auditory cues and transform them into defensive behaviors remain poorly defined.
Jie Cao   +8 more
wiley   +1 more source

Remote Identification of APOE-ε4 Carrier Status in Cognitively Normal Adults via Speech Acoustics: Cross-Sectional Observational Study. [PDF]

open access: yesJMIR Form Res
Tavakoli M   +9 more
europepmc   +1 more source

AquaVib: Enabling the Separate Evaluation of Effects Induced by Acoustic Pressure and Particle Motion on Aquatic Organisms

open access: yes
Scientific awareness is rising regarding fish and sea invertebrates’ sensitivity to the soundfield’s particle motion component. The AquaVib, a distinctive laboratory setup, provides a practical methodology for controlled sound exposure experiments on ...
Pla, O.   +4 more
core  

Wearable E‐Textiles for Cardiovascular Monitoring: Materials, Devices, and Integrated Systems

open access: yesAdvanced Science, EarlyView.
The graphical abstract highlights the role of conductive materials and textile fabrication techniques in enabling smart textiles for cardiovascular applications. It showcases textile‐based ECG monitoring, pulse sensing, hemodynamic monitoring, and cardiovascular tissue engineering, while emphasizing the challenges and design considerations that govern ...
Bangul Khan   +3 more
wiley   +1 more source

A study on transient enhancement for fault diagnosis based on an active noise control system [PDF]

open access: yes
Active noise control (ANC) is a more effective technique used for acoustic noise cancelation in comparison with passive approaches which are difficult and expensive to implement, especially for cancelling the noise in the low frequency range.
Gu, Fengshou   +4 more
core  

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