Results 71 to 80 of about 314,481 (350)
Sound Attenuation in Quark Matter Due to Pairing Fluctuations
, 2016 The sound wave in dense quark matter is subject to strong absorption due to diquark field fluctuations above T critical. The result is another facet of Mandelshtam-Leontovich slow relaxation time theory.Comment: Talk at the 19th International Seminar ...
Kerbikov, Boris
core +2 more sources
Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
wiley +1 more source
Fiber Weight Fraction Effect to Acoustic Properties of RHDPE Cantula Composite
Mekanika, 2017 In this study, composites made from recycled HDPE and Cantula fiber have been done and the absorption coefficient have been measured. Composites rHDPE-Cantula were made using hot press for approximately 60 minutes with 170oC temperature while pressure ...
Muhammad Taufik Burhany Hendrowarsito +2 more
doaj +1 more source
An assessment of the performance of impedance tube method [PDF]
, 2014 The impedance tube method is widely used for measuring sound absorption (or reflection) coefficients of acoustic materials as a function of frequency.
Körük, Hasan
core +1 more source
Microbubble Shell Stiffness Engineering Enhances Ultrasound Imaging, Drug Delivery, and Sonoporation
Advanced Materials, EarlyView.Shell‐engineered poly(alkyl cyanoacrylate) microbubbles with tunable stiffness improve ultrasound imaging and therapy. Adjusting the length of the alkyl chain and the glass transition temperature maintains a narrow microbubble size distribution while enhancing drug loading, sonoporation and the acoustic response.
Roman A. Barmin +30 more
wiley +1 more source
Improving Sound Absorption Property of Polyurethane Foams by Adding Tea-Leaf Fibers
Archives of Acoustics, 2013 The sound absorption property of polyurethane (PU) foams loaded with natural tea-leaf fibers and luffa cylindrica (LC) has been studied. The results show a significant improvement in the sound absorption property parallel to an increase in the amount ...
Bulent EKICI, Aykut KENTLI, Haluk KUCUK
doaj
بهداشت و ایمنی کار, 2021 Introduction: In recent years tend to use of natural fibers has increased in making sound absorbers. Fiber-based natural materials have low density, low production costs, and are biodegradable.
Reza Jafari Nodoushan +3 more
doaj
Advanced Materials, EarlyView.Hydrogels demonstrate material properties that mimic the mechanical and chemical environments of biological tissues. Yet, they face challenges during their integration into 3D interfaces. By identifying a class of thermoplastic hydrogels, a strategy is developed to pattern hydrogels in thermally drawn fibers.
Changhoon Sung +13 more
wiley +1 more source
Journal of Low Frequency Noise, Vibration and Active Control, 2017 In industrial and architectural applications, noise can be controlled using sound-absorbing materials. Natural materials are now gaining importance in the noise control engineering as they have advantages like low cost, eco-friendly, easy to produce, etc.
Pritesh V Bansod +2 more
doaj +1 more source
Characteristics of developed flexible polyurethane foams reinforced with coconut coir fibres and recycled tyres [PDF]
, 2012 Flexible Polyurethane (PU) foam is generally used in seat cushions of automotive seating for comfort and supporting the occupants. However, due to the demand for more comfortable compartment; seat cushions are now designed for better riding comfort
Chan, Wen Shan
core