Results 91 to 100 of about 3,088,219 (346)
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
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Acoustical characteristic of empty fruit bunch (EFB) fibre with influence of sodium hydroxide treatment time and decay lifespan [PDF]
, 2019 Research on natural fibres has gain much interest in recent years due to the sustaibability and avaibility in which demand for green renewable reinforced composites. Natural fibres can be considered as the alternative way to replace the synthetic fibre
Mat Wan, Lauren
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Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Investigation On The Role of Cavity and Slit of Cavity Resonators to Sound Absorption Behavior [PDF]
, 2011 Slit resonator and also perforated resonator are few kind of room interior finishing. They act as sound absorbers. Gen-erally, they are constructed of at least three basic types of absorbers, such as porous, membrane and cavity compo-nents.These types of
Kristanto, Luciana, Susilo, Nugroho
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Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 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
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Application Progress of Resonance Sound Absorption Structure in Aero Engines
Hangkong gongcheng jinzhan, 2019 Resonance sound absorption structure is a sandwich structure composed of perforated panel, honeycomb and rigid backplane. This structure is widely used in aircraft engine nacelle and has achieved good noise reduction effect.
Ji Shuangying, Hao Wei, Liu Jie
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The contribution of molecular relaxation in nitrogen to the absorption of sound in the atmosphere [PDF]
Results and statistical analysis are presented for sound absorption in N2-H2O binary mixtures at room temperature. Experimental procedure, temperature effects, and preliminary results are presented for sound absorption in N2-H2O binary mixtures at ...
Meredith, R. W., Zuckerwar, A. J.
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Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges
Advanced Materials Technologies, EarlyView.This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz +2 more
wiley +1 more source
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
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