Results 101 to 110 of about 203,102 (303)

Practical Inter-Floor Noise Sensing System with Localization and Classification

open access: yesSensors, 2019
Inter-floor noise is a severe social problem which causes illegal arson, violence, and even murder. In this paper, an inter-floor noise sensing system is proposed to detect and record information related to inter-floor noise in an apartment building. The
Junho Son, Chong-Min Kyung, Hyuntae Cho
doaj   +1 more source

Acceptable Noise Level Measured using Monitored Live Voice: A Pilot Study

open access: yesJournal of Phonetics & Audiology, 2016
Objective: Background noise is a significant contributor to poor speech understanding for listeners with normal hearing. It creates an even greater challenge for listeners with hearing loss. Those with hearing loss who use hearing aids often complain of background noise.
Clifford Franklin   +3 more
openaire   +1 more source

Environmental Noise in North Central Mumbai, India: Unravelling Human-Environmental Interactions

open access: yes
389-398This study investigates traffic-related noise in residential zones within an educational institution in North Central Mumbai, India. It uses objective and subjective noise assessments to understand the relationship between objective noise levels,
Laxmi, Vijaya   +2 more
core   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Effects of urban rail noise level in a residential area [PDF]

open access: yes, 2014
Transport, including railways, is one of the main sources of noise, with a particularly strong negative impact on the environment, and on the health of children and adults. Train noise depends on the types of trains, track-type driving, driving speed and
Grubliauskas, Raimondas   +6 more
core  

Aircraft Noise Monitoring and Temporal Measurements in Vicinity of Airports

open access: yes, 2020
Aircraft noise levels are subject of aircraft certification, the aircraft with incorrect levels of noise are illegal to be produced and operated. Permanent or/and temporary noise monitoring to be undertaken usually in local community on assumption that ...
Chyla, Andrzej   +4 more
core   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

open access: yesAdvanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer   +4 more
wiley   +1 more source

Robust Intelligent Monitoring and Measurement System toward Downhole Dynamic Liquid Level

open access: yesSensors
Dynamic liquid level monitoring and measurement in oil wells is essential in ensuring the safe and efficient operation of oil extraction machinery and formulating rational extraction policies that enhance the productivity of oilfields.
Zhiyang Liu   +4 more
doaj   +1 more source

On development of system for environmental monitoring of atmospheric air quality

open access: yesЗаписки Горного института, 2017
The article suggests the directions for development of the system of environmental monitoring of atmospheric air quality in the Russian Federation, namely: an increase in the number of stationary control posts for atmospheric pollution in each specific ...
M. V. Volkodaeva, A. V. Kiselev
doaj   +1 more source

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

open access: yes, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core  

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