Results 1 to 10 of about 400,457 (216)
Orbital Debris-Debris Collision Avoidance [PDF]
Advances in Space Research, 2011 We focus on preventing collisions between debris and debris, for which there is no current, effective mitigation strategy. We investigate the feasibility of using a medium-powered (5 kW) ground-based laser combined with a ground-based telescope to prevent collisions between debris objects in low-Earth orbit (LEO).
Creon Levit +3 more
arxiv +5 more sources
Debris Engine: A Potential Thruster for Space Debris Removal [PDF]
arXiv, 2015 We present a design concept for a space engine that can continuously remove the orbit debris by using the debris as a propellant. Space robotic cleaner is adopted to capture the targeting debris and to transfer them into the engine. Debris with larger size is first disintegrated into small pieces by using a mechanical method. The planetary ball mill is
Lan, Lei, Li, Jingyang, Baoyin, Hexi
arxiv +3 more sources
Quantitative Evaluation of Debris Removal from NiTi Rotary Endodontic Instruments After Different Cleaning Procedures. [PDF]
Dent J (Basel)Objectives: Endodontic instruments require thorough decontamination and sterilization before use and reuse to ensure the safety and success of treatments. However, standardized protocols are lacking.
Generali L +6 more
europepmc +2 more sources
Development of an open source Debris Flow Simulator for “Sabo” (DFSS) [PDF]
E3S Web of Conferences, 2023 We report the development of an open source “Debris Flow Simulator for Sabo” (DFSS). DFSS consists of three models corresponding to three geomorphological regions (mountain hillside slopes, mountain-to-plain river channels, and lower plains).
Shimizu Takeshi +2 more
doaj +1 more source
Debris development in fretting contacts – Debris particles and debris beds [PDF]
Tribology International, 2020 In this study, the formation and destruction of compacted beds of oxidized debris particles are investigated. Fretting tests of steel specimens were conducted, employing a cylinder-on-flat geometry with displacement amplitude being varied. The debris was examined, both in the form of the debris beds and in the form of loose debris; together, these were
C.J. Bennett +3 more
openaire +2 more sources
Reconstruction of debris flow in the Gerkhozhan-Su river valley based on the chain modeling [PDF]
E3S Web of Conferences, 2023 The paper presents the reconstruction of the most catastrophic debris flows in the Gerkhozhan-Su river valley (North Caucasus, Russia) based on a chain of mathematical models.
Iudina (Kurovskaia) Viktoriia +4 more
doaj +1 more source
A 36 cm robotic optical telescope: Equipment and software
Frontiers in Astronomy and Space Sciences, 2022 The paper describes an optical telescope system and control software for robotic observation of space debris. The telescope has a main aperture of 355 mm, adopts the optical design scheme of primary focus with a large field of view, and is equipped with ...
Jian Sun +9 more
doaj +1 more source
Risk assessment in the North Caucasus ski resorts [PDF]
Natural Hazards and Earth System Sciences, 2016 Avalanches pose a significant problem in most mountain regions of Russia. The constant growth of economic activity, and therefore the increased avalanche hazard, in the North Caucasus region lead to demand for the development of large-scale avalanche ...
A. Y. Komarov +3 more
doaj +1 more source
Simple ΔV Approximation for Optimization of Debris-to-Debris Transfers
Journal of Spacecraft and Rockets, 2021 A method for the rapid estimation of transfer costs for the removal of debris in low Earth orbit is proposed. Debris objects among a population with similar inclination values are considered. The proposed approximate analysis can provide estimations of actual Deltav between any debris object pair as a function of time; these estimations allow for the ...
Shen H. -X., Casalino L.
openaire +2 more sources