Results 81 to 90 of about 7,942 (300)

Effect of reverberation of room on its other acoustical parameters

open access: yes, 2005
W referacie przedstawiono wyniki symulacji komputerowej mającej na celu dopasowanie czasu pogłosu dla odbioru mowy i muzyki do wartości optymalnych poprzez zmianę rozwiązań materiałowych pomieszczenia.
Marciniak, J., Jabłoński, M.
core  

Shape Optimization of Two-layer Acoustical Hoods Using an Artificial Immune Method

open access: yesArchives of Acoustics, 2013
Research on acoustical hoods used in industry has been widely discussed; however, the assessment of shape optimization on space-constrained close-fitting acoustic hoods by adjusting design parameters has been neglected.
Min-Chie CHIU
doaj  

THE ACOUSTICAL CHARACTERISTICS OF THE SAYYIDINA ABU BAKAR MOSQUE, UTeM [PDF]

open access: yesJournal of Engineering Science and Technology, 2015
In the Muslim world, mosques are built with grandeur architectural design to depict an important house of worship in Islam. Unfortunately the acoustical performance in mosque is rarely considered at the design stage which eventually deteriorates the ...
DG. H. KASSIM, A. PUTRA, M. J. M. NOR
doaj  

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

open access: yesAdvanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin   +4 more
wiley   +1 more source

INVESTIGATION OF ACOUSTICAL PARAMETERS OF N-(2'-HYDROXY-3'-NITROBENZYLIDENE) -3-SUBSTITUTED PYRIDINE-2-AMINE SCHIFF BASE DERIVATIVES IN DIOXANE-WATER MIXTURE AT 293, 297 AND 300 K

open access: yes, 2019
The density, viscosity and ultrasonic velocity of synthesized Schiff base N – (2’-hydroxy-3’-nitrobenzylidene) pyridine-2-amine and its substituted derivatives have been studied in 1,4-dioxane-water mixture at 293, 297 and 300 K, over a wide range of ...
Mrunal M. Mahajan*1, Pravin B. Raghuwanshi2 & Mamta Mishra3
core   +1 more source

Improving Engineering Design Using Smart Evaluation of Indoor Acoustical Climate of Dining Places

open access: yesApplied Sciences
The indoor acoustic climate of dining places often presents challenges for designers and their projects. In this type of enclosure, one of the fundamental factors determining the acoustic climate of a space is the acceptable speech reception in relation ...
Elzbieta Nowicka
doaj   +1 more source

Theoretical analysis of transcranial magneto-acoustical stimulation with Hodgkin–Huxley neuron model

open access: yesFrontiers in Computational Neuroscience, 2016
Transcranial magneto-acoustical stimulation (TMAS) is a novel stimulation technology in which an ultrasonic wave within a magnetostatic field generates an electric current in an area of interest in the brain to modulate neuronal activities. As a key part
Yi eYuan, Yudong eChen, Xiaoli eLi
doaj   +1 more source

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

open access: yesAdvanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu   +5 more
wiley   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Multiphysical model of CMUT array based on modal decomposition and the Rayleigh integral

open access: yesSensing and Bio-Sensing Research
There is a high number of modeling techniques for calculation of characteristics of capacitive micromachined ultrasound transducers. Very few of them are capable of calculation of the acoustic field, especially when the number of cells in the array is ...
A.E. Biriukov, A.M. Korsunsky
doaj   +1 more source

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