Results 1 to 10 of about 336,595 (312)

Exhaust noise, performance and emission characteristics of spark ignition engine fuelled with pure gasoline and hydrous ethanol gasoline blends

open access: yesCase Studies in Thermal Engineering, 2018
The exhaust noise, performance and emission characteristics of a gasoline engine fuelled by hydrous ethanol gasoline with 10%, 20% hydrous ethanol by volume (E10W and E20W) and pure gasoline (E0) were experimentally investigated. The tests were performed
Xiaokang Deng   +4 more
doaj   +3 more sources

Engine roughness, block vibration and external noise of diesel engine running on Jojoba biodiesel and diesel blends

open access: yesInternational Journal of Thermofluids
An experimental investigation has been carried out to examine the engine roughness including combustion generated noise, overall external noise and block vibration of a direct-injection diesel engine running on biofuel derived from Jojoba oil and blends ...
Bishoy N. Abdo   +3 more
doaj   +3 more sources

Localization of car engine noise sources [PDF]

open access: yesE3S Web of Conferences, 2023
The engine of a vehicle, particularly a passenger car, is one of the main sources of noise radiated into the environment and creates a noise load in residential areas, which has a negative impact on people.
Deryabin Igor
doaj   +1 more source

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

open access: yesIEEE Access, 2022
This study shows that a concurrent active noise control strategy for engine harmonics and road noise has a complementary effect. In particular, we found that engine booming noise is additionally attenuated when road noise control is concurrently used ...
Seonghyeon Kim, M. Ercan Altinsoy
doaj   +1 more source

Organized Computational Measurement to Design a High-Performance Muffler

open access: yesMetrology, 2023
Engine noise, as a source of sound pollution for humans and the environment, can be reduced by designing a high-performance muffler. This study presents a novel, organized design process of that muffler for the KTM390 engine as a case study. The acoustic
Mehran Saadabadi   +2 more
doaj   +1 more source

Tek Nokta Enjeksiyonlu Buji ile Ateşlemeli Bir Motorda Motor Devri ve Yükünün Motor Titreşimleri ve Gürültüye Etkisinin Deneysel İncelenmesi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
Titreşim ve gürültü gerek günlük hayatta gerekse enerji üretim ve dönüşüm sistemlerinde istenmeyen etkilerdir. Bu çalışmada, motorun temel işletme parametrelerinden olan motor devri ve yükünün buji ile ateşlemeli bir motorda gürültü ve titreşime etkisi ...
Tolga Topgül   +2 more
doaj   +1 more source

Pengaruh Tingkat Kebisingan Mesin Kapal terhadap Fungsi Pendengaran dan Stress Kerja pada Teknisi Mesin Kapal

open access: yesQuantum Teknika, 2022
This study aimed to determine the effect of ship engine noise level on hearing function and work stress on ship engine technicians. The data collection process was carried out within 30 days, from 15 February 2021 to 15 March 2021.
Heru Widada   +3 more
doaj   +1 more source

Active Jet Noise Control of Turbofan Engine Based on Explicit Model Predictive Control

open access: yesApplied Sciences, 2022
The active jet noise control received significant attention due to the little influence it has on the engine performance. The active jet noise control is a multivariable problem because it needs to achieve the simultaneous closed-loop control of jet ...
Runmin Ji, Xianghua Huang, Xiaochun Zhao
doaj   +1 more source

Comprehensive Active Control of Booming Noise Inside a Vehicle Caused by the Engine and the Driveline

open access: yesIEEE Access, 2022
This study presents comprehensive active cancellation of booming noise caused by the engine and the driveline inside a passenger car. In modern noise control systems for vehicles, booming noise caused by engine harmonics could be effectively suppressed ...
Seonghyeon Kim, M. Ercan Altinsoy
doaj   +1 more source

The effect of noise on software engineers' performance [PDF]

open access: yesProceedings of the 12th ACM/IEEE International Symposium on Empirical Software Engineering and Measurement, 2018
Background: Noise, defined as an unwanted sound, is one of the commonest factors that could affect people's performance in their daily work activities. The software engineering research community has marginally investigated the effects of noise on software engineers' performance.
Simone Romano 0001   +4 more
openaire   +3 more sources

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