Results 11 to 20 of about 2,526,915 (286)
Building Materials Composition Influence to Sound Transmission Loss STL Reduction [PDF]
, 2013 . The development of the airport always causes the noise impact to the surrounding environment.1 Housing close to the airport will be annoyed by the aircraft noise, especially if the building is not added by absorber building materials.
Sadwikasari, Anggana Fitri +1 more
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Mokslas: Lietuvos Ateitis, 2012 Ambient noise harms a number of citizens in Europe. The major sources of environmental noise are that generated by cars in streets, parking lots, railway lines and airports as well as noise from local sources (fans, transformers).
Julius Gineika, Raimondas Grubliauskas
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Analysis of The Noise Level of The Diesel Engine with 1100 RPM in The Indoor Condition
Journal of Applied Engineering and Technological Science, 2022 One of the weaknesses of diesel engines that most users complain about is the vibration and the noise. Therefore, it is very important to know the noise level of an engine in a room to consider the allowed duration of the exposure time, which is the aim
Nanang Qosim
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Effect of doping on the optical gain and the spontaneous noise enhancement factor in quantum well amplifiers and lasers studied by simple analytical expressions [PDF]
, 1988 The maximum optical gain and the spontaneous noise enhancement factor in quantum well structures are expressed as extremely simple functions that are accurate over a wide range of carrier densities.
Vahala, Kerry J., Zah, C. E.
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Investigation of noise spectra in the frame crane cabins
Advanced Engineering Research, 2016 Рассмотрены методики виброакустических расчетов для кабин козловых кранов, позволяющих как при проектировании, так и при ремонте и модернизации обеспечить выполнение санитарных норм шума путем рационального выбора диссипативных, звукоизолирующих и ...
Kirill O. Kobzev +2 more
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Research on Motor Transport Produced Noise on Gravel and Asphalt Roads
The Baltic Journal of Road and Bridge Engineering, 2010 Vehicles in motion on roads are the main source of noise in the environment. The noise in a car is created by structural noises from car construction, originated from vibrations in an engine, cabin, silencer, wheels and tires.
Linas Leipus +2 more
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Технічна інженерія, 2020 In modern conditions of urbanized areas development, the importance of protection from noise exposure is increasing. In connection with the increase in the number of vehicles, industrialization of cities, the growth of transport mobility of the ...
D.V. Shomko +4 more
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Effects of noise on cognitive performance of workers based on physiological indicators
Meikuang Anquan, 2021 In order to study the influence of different noise levels on the physiological and cognitive performance of workers in the working environment, the physiological indicators such as diastolic blood pressure, systolic blood pressure, heart rate and heart ...
JING Guoxun, WANG Min
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Operation Testing of an Advanced Personalized Ventilation System
Energies, 2019 Using personalized ventilation systems in office buildings, important energy saving might be obtained, which may improve the indoor air quality and thermal comfort sensation of occupants at the same time.
Imre Csáky +2 more
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Geospatial analysis of environmental noise levels in a residential area in Lagos, Nigeria
Noise Mapping, 2020 Noise is an inevitable part of daily life and has been identified as a cause of several health deficiencies across the world. It has increasingly become a significant concern on the health and well-being of people.
Alani Rose Anthony +3 more
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