Results 21 to 30 of about 4,649,450 (252)

An assessment of nurses' knowledge regarding noise in intensive care units in Jordan

open access: yesInternational Journal of Africa Nursing Sciences, 2020
Background: Noise in intensive care units (ICUs) is harmful and might delay patients’ recovery and lengthen their hospital stay. Also, noise exposure has been known to have many adverse effects on professionals working in these settings.
Omar M. Al-Tarawneh   +2 more
doaj   +1 more source

Ecological assessment of acoustic pollution of the city of Lviv and the effec-tiveness of noise measures

open access: yesНауковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки, 2023
Anthropogenic and functional heterogeneities of urban landscapes contribute to the formation of local noise load centers. In cities, the acoustic background is multifactorial, that is, it is covered by different types of noise sources.
B. Kalyn, V. Momut, A. Ponochovnyi
doaj   +1 more source

Silent Neonatal Incubators, Prototype Nica+

open access: yesAcoustics
Objectives: The purpose of this study was to evaluate and compare the noise levels in current incubator models and a prototype designed to improve acoustic comfort in neonatal incubators.
Ricardo Hernández-Molina   +5 more
doaj   +1 more source

Step-by-Step Numerical Prediction of Aerodynamic Noise Generated by High Speed Trains

open access: yesChinese Journal of Mechanical Engineering, 2022
In this paper, the unsteady flow around a high-speed train is numerically simulated by detached eddy simulation method (DES), and the far-field noise is predicted using the Ffowcs Williams-Hawkings (FW-H) acoustic model.
Tian Li   +3 more
doaj   +1 more source

Charge noise and spin noise in a semiconductor quantum device [PDF]

open access: yes, 2014
Self-assembled quantum dots are very attractive as the building blocks for quantum light sources and spin qubits. For instance, a single quantum dot is a robust, fast, narrow-linewidth source of single photons, features not shared by any other ...
Kuhlmann, Andreas V.
core   +1 more source

Application of Compressive Sensing in the Presence of Noise for Transient Photometric Events

open access: yesSignals, 2022
Compressive sensing is a simultaneous data acquisition and compression technique, which can significantly reduce data bandwidth, data storage volume, and power. We apply this technique for transient photometric events. In this work, we analyze the effect
Asmita Korde-Patel   +2 more
doaj   +1 more source

Development of an open-source road traffic noise model for exposure assessment [PDF]

open access: yes, 2014
This paper describes the development of a model for assessing TRAffic Noise EXposure (TRANEX) in an open-source geographic information system. Instead of using proprietary software we developed our own model for two main reasons: 1) so that the treatment
Beevers, Sean   +20 more
core   +1 more source

The Formation of 2D Holograms of a Noise Source and Bearing Estimation by a Vector Scalar Receiver in the High-Frequency Band

open access: yesJournal of Marine Science and Engineering
The holographic signal-processing method for a single vector scalar receiver (VSR) in the high-frequency band in shallow water is developed in the paper. The aim of this paper is to present the results of the theoretical analysis, numerical modeling, and
Sergey Pereselkov   +5 more
doaj   +1 more source

Noise Source Identification in Training Facilities and Gyms

open access: yesApplied Sciences, 2021
This paper deals with noise problems in industrial sites adapted for commercial training venues. The room acoustics of such an object were analyzed in the scope of the reverberation time and potential acoustic adaptation measures are indicated ...
Jakub Wróbel, Damian Pietrusiak
doaj   +1 more source

A reference estimator based on composite sensor pattern noise for source device identification [PDF]

open access: yes, 2014
It has been proved that Sensor Pattern Noise (SPN) can serve as an imaging device fingerprint for source camera identification. Reference SPN estimation is a very important procedure within the framework of this application.
Ruizhe Li   +5 more
core   +1 more source

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