Results 61 to 70 of about 7,237 (288)

On the governing fragmentation mechanism of primary intermetallics by induced cavitation

open access: yesUltrasonics Sonochemistry, 2021
One of the main applications of ultrasonic melt treatment is the grain refinement of aluminium alloys. Among several suggested mechanisms, the fragmentation of primary intermetallics by acoustic cavitation is regarded as very efficient.
Abhinav Priyadarshi   +8 more
doaj   +1 more source

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

open access: yesAdvanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao   +6 more
wiley   +1 more source

Exploring Stellar Cluster and Feedback-driven Star Formation in the Galactic Mid-infrared Bubble [HKS2019] E70

open access: yesThe Astrophysical Journal, 2023
We present a comprehensive analysis of the Galactic mid-infrared bubble [HKS2019] E70 (E70) by adopting a multiwavelength approach to understand the physical environment and star formation scenario around it.
Aayushi Verma   +10 more
doaj   +1 more source

The scattering of sound by a cylindrical bubble cloud [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1989
Preliminary experiments are preformed on the scattering of acoustic pulses by a cylindrical bubble cloud. The goal is to investigate the role played by experimental length scales in establishing the angular dependence of the scattered intensity. These length scales include bubble diameter, interbubble distance, acoustic wavelength, and cloud diameter ...
Murray S. Korman   +2 more
openaire   +1 more source

Nanocellulose Alleviates Intrahepatic Cholestasis of Pregnancy via Gut Microbiota‐Mediated Bile Acid Homeostasis

open access: yesAdvanced Science, EarlyView.
Nanocellulose, derived from microcrystalline cellulose (MCC) through sulfuric acid hydrolysis or mechanical grinding to produce CNC or CNF, was tested in a rat ICP model. Particularly, CNF improved gut microbiota composition, reduced secondary bile acid metabolism, and restored bile acid homeostasis through modulation of the gut–liver axis.
Muhua Yu   +18 more
wiley   +1 more source

Bifurcation of ensemble oscillations and acoustic emissions from early stage cavitation clouds in focused ultrasound

open access: yesNew Journal of Physics, 2013
The acoustic emissions from single cavitation clouds at an early stage of development in 0.521 MHz focused ultrasound of varying intensity, are detected and directly correlated to high-speed microscopic observations, recorded at 1 × 10 ^6 frames per ...
Bjoern Gerold   +2 more
doaj   +1 more source

A Mechanistic Sea Spray Generation Function Based on the Sea State and the Physics of Bubble Bursting

open access: yesAGU Advances, 2022
Bubbles bursting at the ocean surface are an important source of ocean‐spray aerosol, with implications on radiative and cloud processes. Yet, very large uncertainties exist on the role of key physical controlling parameters, including wind speed, sea ...
L. Deike, B. G. Reichl, F. Paulot
doaj   +1 more source

Multiple collisions in N59 bubble: sequential cloud–cloud collisions

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT We report that the gas components in the N59 bubble suffered from sequential multiple cloud–cloud collision (CCC) processes. The molecular gas in the N59 bubble can be decomposed into four velocity components, namely Cloud A [95, 108] km s$^{-1}$, Cloud B [86, 95] km s$^{-1}$, Cloud C [79, 86] km s$^{-1}$, and Cloud D [65, 79 ...
En Chen   +4 more
openaire   +2 more sources

Demonstrations on the scattering of sound by bubble clouds [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1991
A bubblemaker (which operates by regulating a transient volume of air stored in a chamber placed between two solenoid valves) is the heart of an experimental apparatus used to generate a transient bubble cloud in water. The apparatus can be adjusted to create a cylindrical bubble column terminating at the air-water interface. Sound pulses are generated
Murray S. Korman, Ronald A. Roy
openaire   +1 more source

Liquid Metal Nanotransformers for Drug‐Resistant Pan‐Cancer Therapy in Patient‐Derived Organoids

open access: yesAdvanced Science, EarlyView.
Pan‐cancer therapies are severely limited in drug‐resistance patients due to genetic mutations and other factors, resulting in poor therapeutic outcomes and constrained clinical benefit. Liquid metal nanotransformers, a new class of shape‐transformable nanomaterials capable of dramatic morphological changes, offer a promising physical strategy to ...
Xiaojie Yuan   +19 more
wiley   +1 more source

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