Results 41 to 50 of about 245,160 (297)
Starship super heavy acoustics: Far-field noise measurements during launch and the first-ever booster catch [PDF]
JASA Express LettersFar-field (9.7–35.5 km) noise measurements were made during the fifth flight test of SpaceX's Starship Super Heavy, which included the first-ever booster catch. Key results involving launch and flyback sonic boom sound levels include (a) A-weighted sound
Kent L. Gee +5 more
doaj +1 more source
Two HSCT Mach 1.7 low sonic boom designs [PDF]
, 1992 The objective of this study was to provide low sonic boom concepts, geometry, and analysis to support wind tunnel model designs. Within guidelines provided by NASA, two High Speed Civil Transport (HSCT) configurations were defined with reduced sonic boom
Haglund, George T., Ogg, Steven S.
core +1 more source
Advanced Healthcare Materials, EarlyView.The DA/VTP‐NBs selectively recognized cardiac ECs damaged by DIC and achieved cell‐level targeted imaging. Then US‐triggered controlled release successfully enabled the release of DAPA within the DA/VTP‐NBs at the site of injury. This precise on‐demand drug release approach amplifies a series of localized therapeutic effects through the mtDNA‐mediated ...
Jun Zhang +8 more
wiley +1 more source
The low sonic boom and aerodynamic optimization with trim constraint of supersonic jet
Hangkong gongcheng jinzhanThe abatement of sonic boom noise level is a decisive issue for supersonic transport of next generation. The low sonic boom optimization always make the configuration to a trend of higher swept and longer distribution of the wing along the fuselage，which
HAO Xuan +3 more
doaj +1 more source
Ain Shams Engineering Journal, 2022 The modified Burgers’ equation has application in various fields such as explosions and sonic boom theory, propagation of torsional waves in thin circular viscoelastic rod, acoustic waves produced by laser radiations, etc.
Ravneet Kaur +4 more
doaj +1 more source
Advanced Science, EarlyView.This study suggests that prenatal aspirin exposure is associated with reduced ovarian reserve in offspring, associated with HDAC1‐linked epigenetic downregulation of Usp9x as a candidate mechanism. These preclinical findings provide new insights into fetal‐origin ovarian disorders and contribute to the evidence base concerning aspirin's gestational ...
Yating Li +11 more
wiley +1 more source
Low-Boom and Low-Drag Optimization of the Twin Engine Version of Silent Supersonic Business Jet
Journal of Fluid Science and Technology, 2008 Multi-Objective Optimization has been applied to a design problem of the twin engine concept for Silent Supersonic Business Jet (SSBJ). This problem aims to find main wing, body, tail wing and engine nacelle configurations, which can minimize both sonic ...
Koma SATO +5 more
doaj +1 more source
Gut Bacteria Improve Depressive Symptoms by Degrading Cortisol into Androgen
Advanced Science, EarlyView.Chronic stress is an important risk factor for stress‐related disorders such as depression. Stress hormone cortisol is essential for the pathogenesis of stress‐related disorders such as depression. Some gut microbiota degraded cortisol, and improve depressive symptoms.
Xiong Wang +12 more
wiley +1 more source
Near-Field Pressure Signature of New-Concept Supersonic Aircraft Obtained Using Open-Source Approach
SciThis study investigates the numerical prediction of the sonic boom phenomenon in supersonic aircraft by evaluating the near-field pressure signatures of three different aeroshapes.
Antimo Glorioso +3 more
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A comparison of measured and theoretical predictions for STS ascent and entry sonic booms [PDF]
, 1983 Sonic boom measurements have been obtained during the flights of STS-1 through 5. During STS-1, 2, and 4, entry sonic boom measurements were obtained and ascent measurements were made on STS-5.
Garcia, F., Jr. +2 more
core +1 more source