Results 61 to 70 of about 1,539,014 (284)
Civil aircraft trajectory analyses - impact of engine degradation on fuel burn and emissions [PDF]
, 2013 Commercial aviation and air traffic is still expected to grow by 4-5% annually in the future and thus the effect of aircraft operation on the environment and its consequences for the climate change is a major concern for all parties involved in the ...
Venediger, Benjamin
core +5 more sources
Predicting fan noise propagation in aeroengine bypass ducts
, 2009 This thesis explores the prediction of rearwards fan noise propagation within the bypass duct and its radiation into the far feld. Two recently developed models: B-induct and GXMunt, are exploited in application to real engine bypass ducts and their ...
McAleer, Claire Roisin
core +1 more source
Evaluation and Improvement of the Sound Quality of a Diesel Engine Based on Tests and Simulations
Energies, 2020 Traditional acoustic evaluation of a diesel engine generally uses the A-weighted sound pressure level (AWSPL) and radiated sound power to assess the noise of an engine prototype present in an experiment.
Zhengwei Yang +3 more
doaj +1 more source
FEBS Open Bio, EarlyView.Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty +13 more
wiley +1 more source
Effect of Orifice Shape and Bore-Area on Noise Attenuation in a Reactive Muffler [PDF]
Engineering and Technology Journal, 2013 IC engines are a major source of noise pollution. Mufflers require specific design and construction. Considering various noise parameters produced by the engine,the conventional design does not include much of a parametric noise analysis or other engine ...
Muna S. Kassim +2 more
doaj +1 more source
GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma
FEBS Open Bio, EarlyView.GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain +11 more
wiley +1 more source
The influence of jet engine noise on hearing of technical staff
Medycyna Pracy, 2014 Background: Due to high sound pressure levels (SPLs), noise produced by jet planes may be harmful to hearing of people working in their proximity. The aim of this study was to assess the effects of exposure to jet engine noise on technical staff hearing.
Wiesław Konopka +2 more
doaj +1 more source
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Advancing artificial intelligence (AI) has transformed learning and work, yet higher education and professional development programs have not systematically equipped learners for AI‐prevalent environments. This lack of preparation creates uncertainty regarding control, responsibility, trust, and accountability.
Moon‐Heum Cho, Jerusalem Merkebu
wiley +1 more source
Acoustic optimisation and prediction of sound propagation in turbofan engine ducts
, 2010 The research presented in this thesis explores the prediction of noise propagation andradiation in turbofan engine intakes and bypass ducts, and the optimisation of noise attenuationby using acoustic liners.
Achunche, Iansteel Mukum
core +1 more source
Investigating impact of motor oil quality on vehicles engine induced noise level
بهداشت و ایمنی کار, 2015 Introduction: Vehicle engine id one of the main sources of noise which its level is influenced by various parameters. The aim of this study was to investigate the impact of motor oils quality before and after oil change on the variability of vehicle ...
I. Arefian +4 more
doaj +2 more sources