Results 51 to 60 of about 172,436 (251)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

A New Method for Determining the Wave Turbopause Based on SABER/TIMED Data

Remote Sensing
The determination of the wave turbopause is vital for understanding the dynamics of atmospheric processes in the Mesosphere and Lower Thermosphere (MLT).
Zewei Wang, Cunying Xiao, Xiong Hu, Junfeng Yang, Xuan Cheng, Kuan Li, Luo Xiao, Xiaoqi Wu, Yang Yu, Hao Li   +9 more
doaj   +1 more source

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

Advanced Materials Technologies, EarlyView.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi, Jamal Alhourani, Yury Gogotsi, Mohammad H. Zarifi   +3 more
wiley   +1 more source

The Missing Symbiotic Stars: A Joint Analysis with Gaia, GALEX, and XMM-Newton Data

The Astrophysical Journal
The existence of a population of low-accretion-rate symbiotic stars (SySts), consisting of a giant star and a compact companion (usually a white dwarf), has been proposed recently. However, their population has not been fully understood. In this work, we
Xiao-jie Xu, Yong Shao, Xiang-Dong Li
doaj   +1 more source

Data-constrained MHD Simulation of a Multi-ribbon Flare Corresponding to a Successful and a Confined Eruption

The Astrophysical Journal, 2023
The formation and eruption mechanisms of multi-ribbon flares are extremely complicated, especially when the flare is associated with homologous eruptions in the same region.
Wentai Fu, Yang Guo, Mingde Ding, Ze Zhong, Ye Qiu   +4 more
doaj   +1 more source

Advancements in Astronomy and Space Sciences in Jordan: Contributions from Experts and Astrophysical Institutions

Abstract Humanity has always been fascinated by astronomy and space sciences. Two distinct groups of Jordanians show interest in this subject: specialists and amateurs. Experts, often academicians and researchers, immerse themselves in the scientific mysteries of the universe, contributing to global knowledge.
A. A. Abushattal, Ala’a A. A. Azzam, Mashhoor A. Al-Wardat, Hatem Widyan, Mohammad Mardini, Ali Taani, Mohammed Talafha   +6 more
openaire   +1 more source

The Wide Field Spectrograph (WiFeS)

, 2007
This paper describes the Wide Field Spectrograph (WiFeS) under construction at the Research School of Astronomy and Astrophysics (RSAA) of the Australian National University (ANU) for the ANU 2.3m telescope at the Siding Spring Observatory.
A.W. Rodgers, Damien Jones, Gabe Bloxham, J. Bland-Hawthorn, J.C. Cuillandre, John Hart, K. Glazebrook, Michael Dopita, P. Jaquinot, P.J. McGregor, Patrick Oates, Peter McGregor, R. Bacon   +12 more
core   +1 more source

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source

Data-constrained Magnetohydrodynamic Simulation of a Filament Eruption in the Decaying Active Region 13079 on a Global Scale

The Astrophysical Journal
Filaments are special plasma phenomena embedded in the solar atmosphere, characterized by unique thermodynamic properties and magnetic structures. Magnetohydrodynamic (MHD) simulations are useful to investigate the eruption mechanisms of filaments.
Yihua Li, Yang Guo, Jinhan Guo, M. D. Ding, Chun Xia, Rony Keppens   +5 more
doaj   +1 more source