Results 91 to 100 of about 8,356,604 (280)

Natural Frequencies of a Tethered Satellite System

This study investigated the natural frequencies of a tethered satellite system to enhance stability and operational reliability. Tethered satellite systems provide many advantages for space missions but exhibit inherently complex dynamics due to the ...
Jintai Chung, Yihun Yoon, Woojae Jang
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Trions as Fundamental Species in Chemically Doped Polymer Semiconductors

Advanced Materials, EarlyView.
This work shows that exciton–charge carrier coupling in doped polymer semiconductors gives rise to multi‐particle states, including trions—quasiparticles consisting of two holes and one electron under p‐doping—and bound exciton‐hole pairs, as identified through spectroscopic and theoretical analysis.
Hongmo Li, Henry J. Kantrow, David A. Valverde‐Chávez, Meghan McNeil, Arianna Magni, Mohammad Balooch Qarai, Jude Kpare, Jaden Cramlet, Qiao He, Félix Thouin, Zhihao Feng, Yadong Zhang, Andrew Comstock, Stephen Barlow, Jason Azoulay, Seung Soon Jang, Renaud Demadrille, Martin Heeney, Seth Marder, Nicholas J. Hestand, Alberto Salleo, Frank C. Spano, Carlos Silva‐Acuña, Natalie Stingelin   +23 more
wiley   +1 more source

Extreme Spring Pacific Annular Warming Elevates the 2026/27 El Niño

Ocean-Land-Atmosphere Research
Strong sea surface temperature anomalies were observed in the western, northeastern, and southeastern tropical Pacific in spring 2026, forming a rare and extreme annular warming pattern in the tropical Pacific over the past 40 years. Meanwhile, the upper
Tao Lian, Ruikun Hu, Jie Feng, Ting Liu, Youmin Tang, Dake Chen   +5 more
doaj   +1 more source

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

Advanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi, Woonghee Cho, Pyeongjae Park, Woun Kang, Je‐Geun Park, Younjung Jo   +5 more
wiley   +1 more source

Satellite dynamics and space missions

, 2019
This book discusses the design of new space missions and their use for a better understanding of the dynamical behaviour of solar system bodies, which is an active field of astrodynamics.
Gales, C, Gales, Catalin, Gronchi, Gf, Gronchi, Giovanni, Baù, G, Celletti, Alessandra, Bau, Giulio, Celletti, A   +7 more
core   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Near Real-Time Disturbance Detection in Terrestrial Ecosystems Using Satellite Image Time Series: Drought Detection in Somalia [PDF]

Near real-time monitoring of ecosystem disturbances is critical for addressing impacts on carbon dynamics, biodiversity, and socio-ecological processes.
Martin Herold, Jan Verbesselt, Achim Zeileis   +2 more
core  

The rayleigh effects on the atmospheric correction of the ultraviolet imager on HY-1C and HY-1D satellites

Science of Remote Sensing
Ultraviolet (UV) light is a key component of solar radiation, significantly impacting marine ecosystems. It is necessary to measure the ultraviolet light on the ocean which is now available from the Ultraviolet Imager (UVI) on the two ocean color ...
Zhihua Mao, Xianliang Zhang, Dayi Yin, Longwei Zhang, Yiwei Zhang, Qifei Wang, Bangyi Tao, Jianyu Chen, Zengzhou Hao, Qiankun Zhu, Haiqing Huang   +10 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Dynamics of a solar pressure stabilized satellite [PDF]

, 1965
Dynamics of sun-pointing satellite in heliocentric orbit of nonzero ...
Carroll, J. R., Limburg, R. C.
core