Results 121 to 130 of about 38,278 (273)

NASA's Advanced solid rocket motor [PDF]

The Advanced Solid Rocket Motor (ASRM) will not only bring increased safety, reliability and performance for the Space Shuttle Booster, it will enhance overall Shuttle safety by effectively eliminating 174 failure points in the Space Shuttle Main Engine ...
Mitchell, Royce E.
core   +1 more source

Widespread Impact‐Induced Crustal Permeability on the Early Earth

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract The early Earth (i.e., Archean and Hadean Eons, 2.5–4.0 and 4.0–4.5 Ga, respectively) experienced frequent cosmic bombardment. Impacts have been shown to stimulate crustal alteration, for instance via hydrothermal systems active for up to millions of years post‐impact.
A. M. Alexander, S. Marchi, B. C. Johnson   +2 more
wiley   +1 more source

Performance of a UTC FW-4S solid propellant rocket motor under the command effects of simulated altitude and rotational spin [PDF]

One United Technology Center FW-4S solid-propellant rocket motor was fired at an average simulated altitude of 103,000 ft while spinning about its axial centerline at 180 rpm. The objectives of the test program were to determine motor altitude ballistic
Merryman, H. L., Smith, L. R.
core   +1 more source

Spherical solid-propellant rocket motor Patent [PDF]

, 1961
Spherical solid propellant rocket engine ...
Styles, C. M., Swain, R. L., Thibodaux, J. G., Jr.   +2 more
core   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Optimization design of anti-creep reinforcement structure for solid rocket motor propellant grain

Jixie qiangdu
To address the creep issue that arises during the long-term vertical storage of solid rocket motor (SRM), a method was proposed that involved embedding a specially shaped functional combustible core model (reinforcement structure)into the propellant ...
LIU Mengyang, GAO Jingwei, YAN Bo, ZHANG Xiaofei   +3 more
doaj  

Electron Dispersion at the Electron Edge of the Earth's Magnetospheric Cusp

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission observes electron energy‐latitude dispersion at the equatorward edge of the magnetospheric cusp, and high‐cadence Analyzer for Cusp Electrons (ACE) measurements resolve the dispersed edge. The inverse velocity dispersion (low energy before high energy)
J. S. Halekas, S. A. Henderson, S. R. Bounds, S. Ruhunusiri, A. Moore, I. W. Christopher, D. M. Miles, J. B. Bonnell, B. L. Burkholder, I. H. Cairns, L.‐J. Chen, H. K. Connor, I. M. DesJardin, J. C. Dorelli, C. Feltman, S. A. Fuselier, K. Goodrich, G. Hospodarsky, A. N. Jaynes, J. Labelle, M. Øieroset, S. M. Petrinec, B. Powers, K. J. Trattner, S. L. Soni, R. Strangeway, D. Sur   +26 more
wiley   +1 more source

Detailed modal testing of a solid rocket motor using a portable test system [PDF]

Modern analytical techniques have expended the ability to evaluate solid rocket motors used in launch vehicles. As more detailed models of solid rocket motors were developed, testing methods were required to verify the models. Experimental modal analysis
Brillhart, Ralph D., Glozman, Vladimir
core   +1 more source

Transformation of Combustion Nanocatalysts inside Solid Rocket Motor under Various Pressures. [PDF]

Nanomaterials (Basel), 2019
Li JQ, Liu L, Fu X, Tang D, Wang Y, Hu S, Yan QL.   +6 more
europepmc   +1 more source

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin, Stefan Facsko, Wentao Zhang, Anna Mogilatenko, Kilian Unterguggenberger, Bailiang Li, Cem Güney Torun, Gerhard Hobler, Tommaso Pregnolato, Tim Schröder, Katja Höflich   +10 more
wiley   +1 more source