Results 51 to 60 of about 107,600 (223)

Experimental and Numerical Investigations on the Ignition of RBCC Gas-Oxygen/Kerosene Rocket Ejector

open access: yesInternational Journal of Aerospace Engineering, 2021
The rocket ejector refers to a core component of a rocket-based combined cycle (RBCC) engine. The ignition is of critical significance for rocket ejection. Reliable and stable ignition crucially determines the normal operation of the engine.
Bingyang Liu   +5 more
doaj   +1 more source

A Feature-Map-Based Method for Explaining the Performance Degradation of Ship Detection Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The unknowability of the inner workings limits the magnitude of performance improvement of ship target detection networks in synthetic aperture radar (SAR) images under Gaussian noise.
Peng Jia   +5 more
doaj   +1 more source

Unusual Thermal Transport in Few‐Layer Van der Waals Antiferromagnet CrOCl

open access: yesAdvanced Science, EarlyView.
Thermal transport serves as an ultra‐sensitive probe for detecting the magnetic order in 2D materials. Using the suspended thermal bridge method enhanced by Wheatstone bridges, it is, for the first time, observed anomalous critical behavior in few‐layer CrOCl near its Néel temperature.
Yu Yang   +10 more
wiley   +1 more source

Ieee Access Special Section Editorial:Complex System Health Management Based On Condition Monitoring And Test Data

open access: yesIEEE Access, 2018
The global manufacturing industry is facing a crucial transformation with the rapid developments of German Industries 4.0, Industrial Internet of the U.S., and China Manufacturing 2025.
Datong Liu   +6 more
doaj   +1 more source

Light levitated geostationary cylindrical orbits are feasible [PDF]

open access: yes, 2010
This paper discusses a new family of non-Keplerian orbits for solar sail spacecraft displaced above or below the Earth's equatorial plane. The work aims to prove the assertion in the literature that displaced geostationary orbits exist, possibly to ...
Colin R. McInnes   +6 more
core   +1 more source

Bionic Artificial Leaves Based on AIE‐Active Supramolecular Hydrogel for Efficient Photocatalysis

open access: yesAdvanced Science, EarlyView.
A novel bionic artificial leaf is developed by integrating host‐guest interactions with covalent bonding. Meso‐functionalized pillararene (m‐TPEWP5) formed a stable host‐guest complex HGSM with guest G, which is copolymerized with gelatin methacryloyl (GelMA) to form a hydrogel HGGelMA for encapsulating eosin Y (ESY).
Rongbo Zhang   +5 more
wiley   +1 more source

Muscle atrophy phenotype gene expression during spaceflight is linked to a metabolic crosstalk in both the liver and the muscle in mice

open access: yesiScience, 2022
Summary: Human expansion in space is hampered by the physiological risks of spaceflight. The muscle and the liver are among the most affected tissues during spaceflight and their relationships in response to space exposure have never been studied.
Geraldine Vitry   +7 more
doaj  

Study on radar electronic module cooling by using diamond/copper composites

open access: yesFunctional Diamond, 2023
Diamond/copper composites are regarded as a new generation of heat dissipation materials because of their good thermal conductivity and matched thermal expansion coefficient to semiconductor materials.
Jinwang Li, Tianshu Cong, Shugang Dai
doaj   +1 more source

Fast Mesh Refinement in Pseudospectral Optimal Control [PDF]

open access: yes, 2019
Mesh refinement in pseudospectral (PS) optimal control is embarrassingly easy --- simply increase the order $N$ of the Lagrange interpolating polynomial and the mathematics of convergence automates the distribution of the grid points.
Koeppen, N.   +3 more
core   +1 more source

Deflecting small asteroids using laser ablation : Deep space navigation and asteroid orbit control for LightTouch2 Mission [PDF]

open access: yes, 2013
This paper presents a low-cost, low mass, mission design to successfully intercept and deflect a small and faint, 4 m in diameter asteroid. Intended to be launched after 2025, the laser-ablating mission, LightTouch2 will be used to deflect the orbit of ...
Branco, Joao   +4 more
core   +1 more source

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