Results 91 to 100 of about 555,673 (291)

Predicted sound absorption coefficients of absorber materials lined in a chamber

International Journal of Environmental Health Engineering, 2014
Aims: The present study was aimed to measurement of sound absorption coefficient of mineral wool and determination of their absorption ability. Materials and Methods: Mineral wool was used to find noise absorption coefficient.
Farhad Forouharmajd, Parvin Nassiri, Mohammad Reza Monazzam, Mohammadreza Yazdchi   +3 more
doaj   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

Advanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou, Mohammed Benwadih, Arnaud Gabas, Lina Kadura, Minh‐Quyen Le, Daniel Grinberg, Pierre‐Jean Cottinet   +6 more
wiley   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Under-dominance constrains the evolution of negative autoregulation in diploids [PDF]

, 2013
Regulatory networks have evolved to allow gene expression to rapidly track changes in the environment as well as to buffer perturbations and maintain cellular homeostasis in the absence of change.
Pomiankowski, A, Reuter, M, Seymour, RM, Stewart, AJ   +3 more
core  

Mechanical and Sound Absorption Performance of Cashew Apple Bagasse and Mahogany Fruit-based Hybrid Composites

BioResources
Mechanical and acoustic properties were studied for hybrid composites developed from Cashew Apple Bagasse (CAB) fibers and Mahogany tree Fruit Filler (MFF) in an epoxy matrix.
Murugesan Palaniappan, Sivasubramanian Palanisamy, Thulasimani Murugesan, Carlo Santulli, Srinivas Tadepalli   +4 more
doaj  

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Ground-based NIR emission spectroscopy of HD189733b

, 2011
We investigate the K and L band dayside emission of the hot-Jupiter HD 189733b with three nights of secondary eclipse data obtained with the SpeX instrument on the NASA IRTF.
Agol, Bakos, Beaulieu, C. A. Griffith, Charbonneau, Charbonneau, Charbonneau, Drossart, G. Tinetti, I. P. Waldmann, M. R. Swain, Mandel, Mandell, P. Deroo, P. Drossart, Persival, Redfield, Riley, Swain, Swain, Tinetti, Yurchenko   +21 more
core   +2 more sources

Exploring the Impact of Noise and Image Quality on Deep Learning Performance in DXA Images

Diagnostics
Background and Objective: Segmentation of the femur in Dual-Energy X-ray (DXA) images poses challenges due to reduced contrast, noise, bone shape variations, and inconsistent X-ray beam penetration.
Dildar Hussain, Yeong Hyeon Gu
doaj   +1 more source

The simulation calculation of acoustics energy transfer through the material structure

MATEC Web of Conferences, 2016
The paper deals with the modification of the rail passenger coach floor design aimed at improvement of sound reduction index. Refurbishing was performed by using a new acoustic material with a filamentary microstructure.
Zvolenský Peter, Pultznerová Alžbeta, Grenčík Juraj   +2 more
doaj   +1 more source

Denoising Method of dbN Wavelet Threshold for Die Repair Hammer Force Signals

Journal of Harbin University of Science and Technology, 2019
In order to solve the problem that the noise of the hammer power signal in mold repair is large, the dbN wavelet (abbreviation of Daubechies, N is the wavelet order) is used to reconstruct the hammer force signal according to the obtained low frequency ...
LIU Li-jun, SHEN Xiu-qiang, WANG Xiao-lu, YANG Wen-hao, YAO Ji-rong   +4 more
doaj   +1 more source