Noise pollution from oil, gas, and petrochemical industries

Saha, Priyanka; Monir, Minhaj Uddin; Sarkar, Shaheen M.; Aziz, Abdul

doi:10.1016/b978-0-323-95154-8.00012-8

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…We can consider a sound level of 0 dB as a reference level of sound that equals a pressure of 20 μPa, a pressure that a normal, healthy young ear can sense. Doubling sound pressure (in Pa or N/m 2 ) results in an increase in sound pressure level (in dB) by 6 dB (or 20 log 2) [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Sound waves alter the viability of tobacco cells via changes in cytosolic calcium, membrane integrity, and cell wall composition

Sardari,

Ghanati,

Mobasheri

et al. 2024

PLoS ONE

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The effect of sound waves (SWs) on plant cells can be considered as important as other mechanical stimuli like touch, wind, rain, and gravity, causing certain responses associated with the downstream signaling pathways on the whole plant. The objective of the present study was to elucidate the response of suspension-cultured tobacco cells (Nicotiana tabacum L. cv Burley 21) to SW at different intensities. The sinusoidal SW (1,000 Hz) was produced through a signal generator, amplified, and beamed to the one layer floating tobacco cells inside a soundproof chamber at intensities of 60, 75, and 90 dB at the plate level for 15, 30, 45, and 60 min. Calibration of the applied SW intensities, accuracy, and uniformity of SW was performed by a sound level meter, and the cells were treated. The effect of SW on tobacco cells was monitored by quantitation of cytosolic calcium, redox status, membrane integrity, wall components, and the activity of wall modifying enzymes. Cytosolic calcium ions increased as a function of sound intensity with a maximum level of 90 dB. Exposure to 90 dB was also accompanied by a significant increase of H2O2 and membrane lipid peroxidation rate but the reduction of total antioxidant and radical scavenging capacities. The increase of wall rigidity in these cells was attributed to an increase in wall-bound phenolic acids and lignin and the activities of phenylalanine ammonia-lyase and covalently bound peroxidase. In comparison, in 60- and 75 dB, radical scavenging capacity increased, and the activity of wall stiffening enzymes reduced, but cell viability showed no changes. The outcome of the current study reveals that the impact of SW on plant cells is started by an increase in cytosolic calcium. However, upon calcium signaling, downstream events, including alteration of H2O2 and cell redox status and the activities of wall modifying enzymes, determined the extent of SW effects on tobacco cells.

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Section: Introductionmentioning

confidence: 99%

Sound waves alter the viability of tobacco cells via changes in cytosolic calcium, membrane integrity, and cell wall composition

Sardari,

Ghanati,

Mobasheri

et al. 2024

PLoS ONE

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“…A Grey prediction based on Grey theory was also used for this hybrid system in addition to the experimentation that explored the integrated noise reduction system. The experiment used a mixed adaptive algorithm for this system (Saha et al, 2023). In their technical report, a novel method for simulating concentric partly perforated invading tube mufflers was introduced by Chaitanya and Munjal (2011).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Noise Level with Convergent and Divergent Shape of Muffler and its Impact on Noise Pollution

Jatola,

Gupta

2023

IJERR

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Noise pollution is one of the key hazards that decreases people's quality of life globally. Due to the rapid development of technology, industrialization, urbanization, and transportation networks, noise pollution has reached serious levels in recent years. Sound transmission loss, the attenuation of sound as it passes through diverse objects and environments, is crucial in lowering noise pollution and preserving the acoustic integrity of ecosystems. Due to de-throttling tactics implemented to optimize cylinder fill, the intake system of internal combustion engines is the primary noise source while the vehicle is at low speeds and high loads. Therefore, achieving high acoustic performance of intake systems constitutes a critical issue in complying with the increasingly stringent European regulations for overall noise emission. The Transmission Loss computation is typically the most used technique for describing a system's acoustic performances. This work provided an overview of sound transmission loss and discussed its substantial environmental effects. It investigates the fundamentals of sound transmission, the factors that influence it, and the environmental impacts of sound attenuation. This paper proposed a comparison of three designs like straight duct (muffler), convergent and divergent design of muffler. The main aim is to observe sound transmission loss and compare the noise level with three muffler configurations with the same gas volume. High transmission loss indicates more noise reduction in muffler design, which will help reduce environmental noise pollution.

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Hearing Aids and Speech Intelligibility Enhancement

Khristo,

Fawzi

2024

Advances in Wireless Technologies and Telecommunication

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Hearing is a crucial human sense, and its loss significantly impacts a patient's daily life. Hearing loss, the inability of the ear to convert sound waves into interpretable signals by the brain is classified as mild, moderate, or severe. According to WHO, 1.5 billion people suffer from hearing loss, 25% are over 60, and 80% live in low- and middle-income countries. Hearing loss in childhood leads to underdeveloped speech and learning difficulties. Hearing loss generally leads to social isolation, reduced community participation, and lower educational and employment opportunities. People with mild to severe loss use hearing aids, while the profoundly deaf use sign language. Accessible communication aids promote social and economic sustainability. Hearing aid technologies have evolved, focusing on rechargeable batteries and recycling programs. Innovations include smartphone-based hearing aid apps and machine learning for sound enhancement. Policies supporting obtaining hearing aids and services are crucial for sustainability and well-being.

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Noise pollution from oil, gas, and petrochemical industries

Cited by 3 publications

References 30 publications

Sound waves alter the viability of tobacco cells via changes in cytosolic calcium, membrane integrity, and cell wall composition

Sound waves alter the viability of tobacco cells via changes in cytosolic calcium, membrane integrity, and cell wall composition

Analysis of Noise Level with Convergent and Divergent Shape of Muffler and its Impact on Noise Pollution

Hearing Aids and Speech Intelligibility Enhancement

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