Results 61 to 70 of about 301,038 (298)

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 more
wiley   +1 more source

Optimal Heliocentric Orbit Raising of CubeSats with a Monopropellant Electrospray Multimode Propulsion System

Applied Sciences
A Multimode Propulsion System (MPS) is an innovative spacecraft thruster concept that integrates two or more propulsion modes sharing the same type of propellant.
Alessandro A. Quarta, Marco Bassetto, Giulia Becatti   +2 more
doaj   +1 more source

Modular Impulsive Green Monopropellant Propulsion System (MIMPS-G): For CubeSats in LEO and to the Moon

Aerospace, 2021
Green propellants are currently considered as enabling technology that is revolutionizing the development of high-performance space propulsion, especially for small-sized spacecraft.
Ahmed E. S. Nosseir, Angelo Cervone, Angelo Pasini   +2 more
doaj   +1 more source

A novel interplanetary communications relay [PDF]

, 2010
A case study of a potential Earth-Mars interplanetary communications relay, designed to ensure continuous communications, is detailed. The relay makes use of orbits based on artificial equilibrium points via the application of continuous low thrust ...
Andersson G., Baig S., Forward R. L., Leipold M., McInnes C. R., McInnes C. R., Mengali G., PolarOrbiter, Sail MissionPerformance, Simo J., Systems, Trajectories, West J. L.   +12 more
core   +1 more source

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

Journal 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, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Augmented Hohmann Transfer for Spacecraft with Continuous-Thrust Propulsion System

Aerospace
Hohmann transfer is the classical approach used in astrodynamics to analyze the optimal bi-impulsive transfer, from the point of view of the total velocity change, between two circular, coplanar orbits of assigned radius.
Alessandro A. Quarta
doaj   +1 more source

Theoretical Research on Magnetic Confinement Mechanism of Applied-Field Magnetoplasmadynamic Thruster

Aerospace, 2023
Since the invention of rockets, mankind has been constantly trying to explore the universe. It was not until the beginning of the last century that electric propulsion technology was introduced.
Yifan Du, Jinxing Zheng, Haiyang Liu, Yong Li, Cheng Zhou, Ge Wang, Zhuoyao Tang, Yudong Lu, Luoqi Wang   +8 more
doaj   +1 more source

Responsive liquid metal materials towards unstructured environment

Responsive Materials, EarlyView.
Room‐temperature liquid metals integrate conductivity, deformability, and interfacial dynamics, enabling robust performance in unstructured environments. This review highlights key properties, requirements, and applications across in vivo, underwater, natural, space, and radiation settings, with advances in sensing, actuation, thermal regulation, and ...
Bo Yuan, Huaitong Song, Kaiyuan Xiang, Shili Tang, Cailin Liu, Hongzhang Wang   +5 more
wiley   +1 more source

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

Global Policy, EarlyView.
ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley   +1 more source