Results 11 to 20 of about 330,769 (355)
The AtmoSOFAR Channel: First Direct Observations of an Elevated Acoustic Duct
Earth and Space Science, 2023 The Sound Fixing and Ranging (SOFAR) channel in the ocean allows for low frequency sound to travel thousands of kilometers, making it particularly useful for detecting underwater nuclear explosions.
S. A. Albert +3 more
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Development Trend of Liquid Hydrogen-Fueled Rocket Engines (Part 1: Performance and Operation)
International Journal of Aeronautical and Space Sciences, 2022 SpaceX's successful development of reusable rockets and the realization of low-cost operations have significantly impacted the space industry, institutions, and companies. Price competitiveness has become a hot topic for launch vehicle development.
Dong Ha, T. Roh, H. Huh, H. Lee
semanticscholar +1 more source
Chemical Analysis of Eruca sativa Ethanolic Extract and Its Effects on Hyperuricaemia
Molecules, 2022 In vivo assays and chemical analyses were performed on the ethanolic extract from leaves of Eruca sativa. UHPLC-ESI-QTOF analysis confirmed the presence of glucosinolates and flavonol glucosides. The major flavonoid of the ethanolic extract, kaempferol-3,
Arthur Ferrari Teixeira +4 more
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End to end process evaluation for additively manufactured liquid rocket engine thrust chambers
, 2021 High performance liquid rocket engines require cooling to maintain structural integrity of the combustion chamber which is exposed to high thermal and environmental loads.
Fabio Kerstens, A. Cervone, P. Gradl
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Research and Development of Fault Diagnosis Methods for Liquid Rocket Engines
Aerospace, 2022 Currently, considerable efforts are being focused on the development of reusable rockets and smart rockets due to the heavy requirements of future next-generation aerospace transportation.
Tao Wang, Lin Ding, Huahuang Yu
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Aerospace, 2021 This paper presents the development of indigenous hybrid rocket technology, using 98% hydrogen peroxide as an oxidizer. Consecutive steps are presented, which started with interest in hydrogen peroxide and the development of technology to obtain High ...
A. Okniński +9 more
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Reasoned opinion on the modification of the existing MRLs for propamocarb in rocket and leek [PDF]
EFSA Journal, 2013 In accordance with Article 6 of Regulation (EC) No 396/2005, the United Kingdom, hereafter referred to as the evaluating Member State (EMS-UK), received an application from Horticultural Development Company (HDC) to modify the existing MRL for the active
European Food Safety Authority
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Sublimation of ice particles from rocket exhausts in the upper atmosphere [PDF]
, 2003 The process of sublimation of ice particles from a rocket exhaust in the upper atmosphere is examined. Heating by solar radiation and losses of energy by means thermal radiation and sublimation are taken into account in the thermal balance of the ice ...
Kosch, Mike J., Platov, Y. V.
core +1 more source
Inspection Detectability Improvement for Metal Defects Detected by Pulsed Infrared Thermography
Photonic Sensors, 2019 Aiming at the drawbacks of low contrast and high noise in the thermal images, a novel method based on the combination of the thermal image sequence reconstruction and the first-order differential processing is proposed in this work, which is comprised of
Zhengwei Yang +5 more
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Micro-rocket robot with all-optic actuating and tracking in blood
Light: Science & Applications, 2020 Micro/nanorobots have long been expected to reach all parts of the human body through blood vessels for medical treatment or surgery. However, in the current stage, it is still challenging to drive a microrobot in viscous media at high speed and ...
Dengfeng Li +4 more
semanticscholar +1 more source