Results 91 to 100 of about 271,691 (311)
Investigation of Wind Pressure Dynamics on Low-Rise Buildings in Sand-Laden Wind Environments
BuildingsTo enhance the structural safety in wind-sand regions, this study employs the Euler-Lagrange numerical method to investigate the wind pressure characteristics of typical low-rise auxiliary buildings in a strong wind-blown sand environment.
Di Hu, Teng Zhang, Qiang Jin
doaj +1 more source
Low frequency noise in a quiet, clean, general aviation turbofan engine [PDF]
A quiet, clean, general aviation, turbofan engine was instrumented to measure the fluctuating pressures in the combustor, turbine exit duct, engine nozzle and the far field. Both a separate flow nozzle and an internal mixer nozzle were tested.
Goodykoontz, J. H. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar +5 more
wiley +1 more source
Flow noise prediction based on wavenumber-frequency spectrum of turbulent fluctuating pressure
Zhongguo Jianchuan Yanjiu, 2017 [Objectives] According to the Lighthill acoustic analogy equation and its development theory, it is feasible to analyze the wavenumber-frequency spectrum of turbulent wall pressure fluctuations, then make it an acoustic source in order to predict flow ...
WU Hongliang +3 more
doaj +1 more source
Fluctuating pressures in flow fields of jets [PDF]
The powered lift configurations under present development for STOL aircraft are the externally blown flap (EBF), involving direct jet impingement on the aircraft flaps, and the upper surface blown (USB), where the jet flow is attached on the upper ...
Haviland, J. K., Schroeder, J. C.
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Yantu gongcheng xuebaoConsidering the excess pore water pressure generated by the additional thrust on the shield front during the propulsion process, the shield spewing problem is analyzed by the analytical method.
YU Jun , ZHENG Jingfan , ZHANG Zhizhong , LI Dongkai , HE Zhen
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Fluctuating pressures on fan blades of a turbofan engine, flight test investigation [PDF]
Miniature pressure transducers were used to measure the fluctuating pressure on the fan blades of a JT15D engine in flight to aid in understanding fan-noise generation.
Schoenster, J. A.
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High temperature fiber optic microphone having a pressure-sensing reflective membrane under tensile stress [PDF]
, 1992 A fiber optic microphone is provided for measuring fluctuating pressures. An optical fiber probe having at least one transmitting fiber for transmitting light to a pressure-sensing membrane and at least one receiving fiber for receiving light reflected ...
Cuomo, Frank W. +3 more
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Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source