Results 111 to 120 of about 60,988 (314)

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos   +6 more
wiley   +1 more source

Development of 4D printing and its performance testing methods

open access: yesResponsive Materials, EarlyView.
This paper reviews the molding methods of 4D printing and its applications in various fields, with emphasis on 4D printing performance testing methods. Abstract 4D printing is a cutting‐edge additive manufacturing technology that introduces the time dimension, allowing printed objects to have dynamic, changeable properties, functions or shapes ...
Guiwei Li   +8 more
wiley   +1 more source

Low acceleration solid propellant rocket ignition study [PDF]

open access: yes
A study was conducted to develop a solid-propellant rocket igniter system that would build up thrust at a controlled rate of less than 0.2 G/sec. The system consisted of a long burning, regressive burning, controlled flow igniter and an inhibited ...
Strand, L. D.
core   +1 more source

Rocket motor casing Patent [PDF]

open access: yes, 1966
Regeneratively cooled rocket motor casing with tapered channels to insure minimum thicknesses at each channel cross section for necessary strength ...
Baehr, E. F.
core   +1 more source

Gender, Social Reproduction and the Construction of Capabilities for Social Sustainability of Agriculture: A Relational Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT Farmers' capabilities, a core component of social sustainability, have been largely neglected in sustainable agriculture discourse. Using a relational approach to capabilities and autonomy, this study explores how women farmers translate the opportunity of agricultural innovation into their valued outcomes, and which factors shape their ...
Dawn D. Cheong, Bettina Bock
wiley   +1 more source

ASRM case insulation design and development [PDF]

open access: yes
This paper describes the achievements made on the Advanced Solid Rocket Motor (ASRM) case insulation design and development program. The ASRM case insulation system described herein protects the metal case and joints from direct radiation and hot gas ...
Bell, Matthew S., Tam, William F. S.
core   +1 more source

Rocket motor system Patent [PDF]

open access: yes, 1964
Igniter capsule for chemical ignition of liquid rocket ...
Gregory, J. W., Straight, D. M.
core   +1 more source

Effect of Adatom Energy on the Interfacial and Surface Morphology of Pulsed DC Sputtered Ruthenium Thin Films

open access: yesSurface and Interface Analysis, EarlyView.
ABSTRACT In the present study, we have analyzed the growth profile of ruthenium (Ru) thin films, deposited using pulsed direct current (DC) magnetron sputtering technique, by varying the sputtering voltages in the range of 150–420 V. The grazing incidence X‐ray reflectivity (GIXRR), time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS), and atomic ...
Shruti Gupta   +6 more
wiley   +1 more source

Dynamic Testing of a Hybrid-Propellant Water-Breathing Ram Rocket in Underwater Cruise Conditions

open access: yesJournal of Marine Science and Engineering
High-speed submerged marine vehicles, such as torpedoes, traveling at velocities of an order of 100 m/s and above, require powerful propulsion to overcome the tremendous hydrodynamic drag.
Sagi Dinisman   +2 more
doaj   +1 more source

Influence of the ignition mixture particle size on rocket motor igniter pressure gradient [PDF]

open access: yesScientific Technical Review, 2018
The paper discusses the influence of ignition mixture granulation onto the regime of rocket motor ignition. Igniter tests were performed in manometric bomb and pressure distribution was measured. In each test different granulations of the same mixture in
Gligorijević Nikola   +5 more
doaj  

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