Academic literature on the topic 'Airborne ceiling'

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Journal articles on the topic "Airborne ceiling"

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Lietzén, Jesse, Ville Kovalainen, Lauri Talus, Mikko Kylliäinen, Aitor Lopetegi, and Ander Aldalur. "The effect of suspension systems on the sound insulation of suspended ceilings: A finite element analysis." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A86. http://dx.doi.org/10.1121/10.0022888.

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It has been shown via laboratory measurements that the airborne and impact sound insulation of a concrete floor structure with a suspended plasterboard ceiling can be improved by using elastic ceiling suspension systems. The weighted airborne sound reduction index R w was increased by 7dB and the normalized impact sound pressure level L n,w was decreased by 15 dB when using elastic ceiling hangers as opposed to fixed hangers. In order to study the effect of elastic ceiling hangers on sound insulation further and to make it easier to compare different suspension systems especially in the low fr
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Hendinata, Laurentius Kevin. "Calculating Flanking Transmission for Improved Airborne Sound Insulation in Buildings." International Journal of Architecture and Urbanism 8, no. 1 (2024): 30–37. http://dx.doi.org/10.32734/ijau.v8i1.14441.

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The complexities of airborne noise insulation in tropical buildings provide challenges for predicting the value of airborne noise in buildings. The analysis employs standardized metrics, the Weighted Sound Reduction Index (DnT,w), to evaluate the impact of wall, floor, and ceiling combinations on acoustic performance. Notably, the study addresses the persistent challenge of flanking transmission, contributing to disparities between predicted and measured values. This study focuses on common construction materials in Indonesia. The outcomes reveal that lightweight construction materials, such a
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Lastimosa, Jouana, Bianca Paula Fernandez, Quisa Nobe Rebamonte, Dawn Valerie Niere, Sheryl Cabardo, and Melchie Jaca. "Do Up Ceiling System for the Viewing Room, Cebu Technological University, Main Campus, Cebu City." Psychology and Education: A Multidisciplinary Journal 24, no. 8 (2024): 880–91. https://doi.org/10.5281/zenodo.13683584.

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This study aims to improve the learning environment of a university viewing room by rehabilitating and refurbishing its ceiling, highlighting the critical role of infrastructure in education. The project is driven by the recognition that a well-maintained ceiling is essential for students' physiological well-being, eyesight health, safety, and comfort. Research indicates that poor air circulation in congested spaces with low ceilings can exacerbate the spread of airborne diseases, while inadequate ceiling illumination can harm visual health. Furthermore, exposed electric wires and an aesthetic
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Sadeghian, Parastoo, and Sasan Sadrizadeh. "Impact of design parameters of diffuse ceiling ventilation systems on indoor air quality in school classrooms: a numerical assessment." E3S Web of Conferences 362 (2022): 14001. http://dx.doi.org/10.1051/e3sconf/202236214001.

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Indoor air quality directly impacts an individual’s productivity and health condition in office buildings, hospitals, schools, and residential buildings. Diffuse ceiling systems have been used widely in classrooms at schools that have high heat loads. In this regard, this study investigated the role of diffuse ceiling design parameters, including active diffuse panels’ configuration and contamination locations, on indoor air quality in a classroom. The spread of airborne infectious diseases was simulated using computational fluid dynamics techniques. The results revealed that the central confi
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Wamil, Nicomedes B., Dexter T. Balmaceda, Boots F. Fernandez, et al. "Assessment of Airborne Microbial Contaminants Using Passive Sampling Technique." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 21 (2024): 294–301. http://dx.doi.org/10.56557/upjoz/2024/v45i214638.

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The primary aim of this study was to evaluate airborne microbial contaminants in a laboratory setting using a passive sampling technique. Results indicated higher counts of bacteria in the air of the laboratory at ceiling level (total bacteria = 5.36±0.06 log10 CFU/m3; total coliform = 3.69±0.37 log10 CFU/m3) compared to near the ground (total bacteria = 5.17±0.01 log10 CFU/m3; total coliform = 3.45±0.06 log10 CFU/m3). Conversely, filamentous fungi showed higher counts closer to the ground (4.19±0.27 log10 CFU/m3) than from the ceiling (3.82±0.40 log10 CFU/m3). The total bacterial count in the
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Nurzyński, Jacek, and Łukasz Nowotny. "Acoustic Performance of Floors Made of Composite Panels." Materials 16, no. 5 (2023): 2128. http://dx.doi.org/10.3390/ma16052128.

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Airborne and impact sound insulation of composite panels arranged in different configurations were investigated in this study. The use of Fiber Reinforced Polymers (FRPs) in the building industry is growing; however, poor acoustic performance is a critical issue for their general employment in residential buildings. The study aimed to investigate possible methods of improvement. The principal research question involved the development of a composite floor satisfying acoustic expectations in dwellings. The study was based on the results of laboratory measurements. The airborne sound insulation
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Lange, J. H., and K. W. Thomulka. "Airborne Exposure Concentrations During Asbestos Abatement of Ceiling and Wall Plaster." Bulletin of Environmental Contamination and Toxicology 69, no. 5 (2002): 712–18. http://dx.doi.org/10.1007/s00128-002-0119-1.

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Obadiah, Jason. "FIELD MEASUREMENT OF AIRBORNE SOUND INSULATION BETWEEN ROOMS." Ultimart: Jurnal Komunikasi Visual 12, no. 1 (2020): 24–33. http://dx.doi.org/10.31937/ultimart.v12i1.1397.

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 Airborne sound can be a nuisance and a constant expose to the sound can in- troduced health problems to the people in the area especially areas where quiet environ- ment is a necessity. The objective of this measurement is to demonstrate the field mea- surement of the airborne sound insulation properties of interior walls. The measurement was done for determining the sound insulation properties of a partition between two rooms. This measurement will also determine the parameters and source of the prob- lems which are contributing to the airborne sound from the adjacent roo
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Lim, Yongtaek, Hongseok Jang, and Seungyoung So. "Evaluation of Mineral Carbonation of Asbestos-Tex and Analysis of Airborne Asbestos Concentrations." Buildings 12, no. 9 (2022): 1372. http://dx.doi.org/10.3390/buildings12091372.

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Asbestos is a human carcinogen that causes diseases, such as lung cancer and malignant mesothelioma. In Korea, approximately 1.23 × 109 kg of asbestos raw materials was imported for about 30 years. More than 80% of this were used as building material, such as interior materials and ceiling materials. Among the manufactured asbestos-containing materials, the closest product to the human body is asbestos-tex, used as ceiling material. In this study, asbestos contained in asbestos-tex was transformed into a shape that is physically safe for the human body through mineral carbonation and the resul
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Li, Wenxin, Adrian Chong, Takamasa Hasama, et al. "Effects of ceiling fans on airborne transmission in an air-conditioned space." Building and Environment 198 (July 2021): 107887. http://dx.doi.org/10.1016/j.buildenv.2021.107887.

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Conference papers on the topic "Airborne ceiling"

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Koenig, A. "165. Exposures to Airborne Fibers in the Manufacture of Slag Wool Acoustical Ceiling Tile." In AIHce 1996 - Health Care Industries Papers. AIHA, 1999. http://dx.doi.org/10.3320/1.2764826.

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Kehler, Patrik, Carlos Chaves, Abdias García, et al. "Ventilation CFD Analysis at an Classroom as a Tool for Air Safety Verification Under COVID19 Context, a Case Study." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73785.

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Abstract The COVID 19 pandemic has struck the global economy and slowed down human activity. Paraguay, a small South-American country, was not an exception. This work results from the urgent need to reopen universities, schools, and other academic institutions to resume teaching activities in light of restrictive access to online learning in Paraguay. In order to contain the spread of this virus, school activities such as course lectures were placed on hold indefinitely. Inappropriate airflow in an enclosed space is one of the main factors in the spread of this virus. When combined with person
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Reports on the topic "Airborne ceiling"

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Rahai, Hamid, and Jeremy Bonifacio. Numerical Investigations of Virus Transport Aboard a Commuter Bus. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.2048.

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The authors performed unsteady numerical simulations of virus/particle transport released from a hypothetical passenger aboard a commuter bus. The bus model was sized according to a typical city bus used to transport passengers within the city of Long Beach in California. The simulations were performed for the bus in transit and when the bus was at a bus stop opening the middle doors for 30 seconds for passenger boarding and drop off. The infected passenger was sitting in an aisle seat in the middle of the bus, releasing 1267 particles (viruses)/min. The bus ventilation system released air fro
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