Results 31 to 40 of about 5,656,159 (367)
The Parametric Aircraft Noise Analysis Module - status overview and recent applications [PDF]
, 2011 The German Aerospace Center (DLR) is investigating aircraft noise prediction and noise reduction capabilities. The Parametric Aircraft Noise Analysis Module (PANAM) is a fast prediction tool by the DLR Institute of Aerodynamics and Flow Technology to ...
Bertsch, Lothar +3 more
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Evaluation and analysis of noise levels in Ilorin metropolis, Nigeria [PDF]
, 2010 Evaluation and analysis of noise pollution levels have been carried out to determine the level of noise and its sources in Ilorin metropolis. Noise measurements have been done in the morning, at noon, in the evening, and at night to determine noise ...
Oyedepo, Sunday Olayinka
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Nature, 2001 Crackling noise arises when a system responds to changing external conditions through discrete, impulsive events spanning a broad range of sizes. A wide variety of physical systems exhibiting crackling noise have been studied, from earthquakes on faults to paper crumpling. Because these systems exhibit regular behavior over many decades of sizes, their
Karin A. Dahmen +2 more
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Polymer Testing, 2022 When marine stern shafts operate under low speed and heavy load conditions, the metal shaft and water-lubricated bearing will be in a state of boundary lubrication or even dry friction.
Yinsong Liu +4 more
doaj
Preparation and Dielectric Sensitivity of Polyurethane Composite Fiber Membrane Filled with BaTiO3
Membranes, 2022 Polyurethane dielectric elastomer (PUDE) is considered a potential underwater flexible actuator material due to its excellent designability and environmental tolerance at the molecular level. Currently, the application of the polyurethane elastomer as an
Gang Lu +4 more
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Reducing MOSFET 1/f Noise and Power Consumption by "Switched Biasing" [PDF]
, 2000 Switched biasing is proposed as a technique for reducing the 1/f noise in MOSFET's. Conventional techniques, such as chopping or correlated double sampling, reduce the effect of 1/f noise in electronic circuits, whereas the switched biasing technique ...
Gierkink, Sander L.J. +3 more
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Physical Review Letters, 2014 We present an efficient and robust method for the reconstruction of photon number distributions by using solely thermal noise as a probe. The method uses a minimal number of pre-calibrated quantum devices, only one on/off single-photon detector is sufficient.
Georg Harder +3 more
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Ultrasonic signal processing techniques for Pipeline: A review
MATEC Web of Conferences, 2019 Monitoring pipeline wall is an important issue in oil and gas industries. Over time, the defect can occur in the pipeline and can impact surrounding population, environment and may result in injuries or fatalities.
Naqiuddin M. S. M +3 more
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Membranes, 2022 The electro deformability of an actuating unit of a polyurethane dielectric elastomer (PUDE) is affected by many factors. The agglomeration of dielectric fillers faced by the traditional dielectric modification methods will lead to the instability of the
Gang Lu +4 more
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Chaos: An Interdisciplinary Journal of Nonlinear Science, 2013 Simple dynamical systems—with a small number of degrees of freedom—can behave in a complex manner due to the presence of chaos. Such systems are most often (idealized) limiting cases of more realistic situations. Isolating a small number of dynamical degrees of freedom in a realistically coupled system generically yields reduced equations with terms ...
Salman Habib, Temple He
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