Results 11 to 20 of about 326,550 (312)
Locomotive Noise Reduction [PDF]
MATEC Web of Conferences, 2020 This paper presents the results of the investigation of the noise characteristics of the dual-voltage mainline electric locomotive. The study identified noise levels generated by the locomotive equipment that violate regulations. The analysis of points, where the noise is above regulations, indicated the primary source of the elevated noise is the ...
Nikita Nesterov, Aleksei Bykov
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Louvred Noise Barrier for Traffic Noise Reduction
The Baltic Journal of Road and Bridge Engineering, 2021 Environmental issues near roads become more and more important in our society daily life. One of the most critical environmental issues is traffic noise. The present paper study louvred noise barrier designed by authors. The louvred noise barrier provides sound attenuation while allowing airflow and sunlight through it.
Tomas Astrauskas +3 more
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Adaptive Noise Reduction System [PDF]
Interdisciplinary Description of Complex Systems, 2013 Noise is an all-present environment pollutant, considered to be one of the greatest contemporary pollutants. World-wide, co- ordinated actions are conducted in order to develop systems which minimise the noise influence onto society.In this article we argue that novel approach to suppression of influence of noise is useful.
Ropuš, Ivana +2 more
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Transportation Noise—Airplane Noise Reduction
The Journal of the Acoustical Society of America, 1973 Current Federal noise regulations will be discussed along with their impact on community noise exposure. Brief references will be made to specific technical areas where significant advances in noise reduction have been made and to noise reduction goals for the future.
Harvey H. Hubbard
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Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan), 1972 Y. Tokita
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Hole making characteristics of novel domestic T800 carbon fiber reinforced composite
Journal of Aeronautical Materials, 2023 In view of the defects of the new domestic T800 carbon fiber reinforced plastic （CFRP）, such as lamellar tearing and fiber loss, which would be easily caused by large drilling force and torque during cutting, an experimental platform including a vertical
DONG Huimin +6 more
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Effect of ionic liquids on tribological properties of water-iubricated nitrile rubber rubber
Hecheng xiangjiao gongye, 2021 Nitrile rubber(NBR)-based composites modified with three kinds of imidazolium-based ionic liquids were prepared by mechanical mixing method. Curing characteristics, dynamic mechanical properties, physical and mechanical properties and friction ...
WANG Shan, PEI Gao-lin, SU Zheng-tao
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Aggressive Behavior, Volume 49, Issue 1, Page 85-95, January 2023., 2023 Abstract The past two decades have produced extensive evidence on the manifold and severe outcomes for victims of aggression exposure in the workplace. However, due to the dominating individual‐centered approach, most findings miss a social network perspective.
Alexander Herrmann +2 more
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Torsional vibration analysis of shaft with multi inertias
Scientific Reports, 2022 An analytical method is proposed to investigate the torsional vibration of the uniform circular shaft with multiple concentrated inertias. The governing equation is established based on the Hamiltonian principle and verified by the dynamical method.
Tao Peng, Qun Yan
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Semi‐supervised classification of fundus images combined with CNN and GCN
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose Diabetic retinopathy (DR) is one of the most serious complications of diabetes, which is a kind of fundus lesion with specific changes. Early diagnosis of DR can effectively reduce the visual damage caused by DR. Due to the variety and different morphology of DR lesions, automatic classification of fundus images in mass screening can ...
Sixu Duan +8 more
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