Results 61 to 70 of about 2,582,386 (292)

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

An aperture of 21 cm telescope with polarized coaxial for satellite laser ranging

Frontiers in Physics, 2023
With the development of aerospace and space scientific research, satellite laser ranging (SLR) has put forward higher requirements for response speed, data density, and measurement accuracy. In coaxial common optical path laser ranging, the emitted laser
Mingliang Long, Huarong Deng, Haifeng Zhang, Haifeng Zhang, Kai Tan, Hai sheng Lin, Zhibo Wu, Zhibo Wu, Zhongping Zhang, Zhongping Zhang, Zhongping Zhang   +10 more
doaj   +1 more source

Sub-canopy terrain modelling for archaeological prospecting in forested areas through multiple-echo discrete-pulse laser ranging: a case study from Chopwell Wood, Tyne & Wear [PDF]

, 2011
Airborne Light Detection and Ranging (LiDAR) technology is assessed for its effectiveness as a tool for measuring terrain under forest canopy. To evaluate the capability of multiple-return discrete-pulse airborne laser ranging for detecting and resolving
LANDY, JACK
core  

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Field tests of astrometric subsystem

Geodesy and Cartography, 2016
The paper presents results of astrometric subsystem’s functionality tests for space object laser ranging and astrometric position determination device, which is under construction in the Institute of Geodesy and Geoinformatics (GGI) of the University of ...
Ansis Zariņš, Diāna Haritonova, Augusts Rubans, Gunārs Silabriedis, Jānis Zvirgzds   +4 more
doaj   +1 more source

Design and Data Processing of China's First Spaceborne Laser Altimeter System for Earth Observation: GaoFen-7

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
The GaoFen-7 (GF-7) satellite, which was launched on November 3, 2019, is China's first civilian submeter stereo mapping satellite. The satellite is equipped with the first laser altimeter officially in China for earth observation.
Junfeng Xie, Genghua Huang, Ren Liu, Chenguang Zhao, Jun Dai, Taoyong Jin, Fan Mo, Ying Zhen, Shaoli Xi, Hongzhao Tang, Xianhui Dou, Chenchen Yang   +11 more
doaj   +1 more source

Influence of Atmospheric Scattering on the Accuracy of Laser Altimetry of the GF-7 Satellite and Corrections

Remote Sensing, 2021
Satellite laser altimetry can obtain sub-meter or even centimeter-scale surface elevation data over large areas, but it is inevitably affected by scattering caused by clouds, aerosols, and other atmospheric particles.
Jiaqi Yao, Xinming Tang, Guoyuan Li, Jiyi Chen, Zhiqiang Zuo, Bo Ai, Shuaitai Zhang, Jinquan Guo   +7 more
doaj   +1 more source

Ground-based optical position measurements of space debris in low earth orbits [PDF]

, 2013
The increasing amount of space debris requires the satellite operators to handle a growing number of collision risk assessments in order to eventually perform collision avoidance manoeuvrers.
Hampf, Daniel, Stöckle, Gabriel, Riede, Wolfgang, Buske, Ivo, Völker, Uwe   +4 more
core  

Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition

Advanced Functional Materials, EarlyView.
An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen, Susanne Selle, Michael S. Bar, Michael Lorenz, Holger von Wenckstern, Marius Grundmann   +5 more
wiley   +1 more source

Testing gravitational physics with satellite laser ranging

, 2011
Laser ranging, both Lunar (LLR) and Satellite Laser Ranging (SLR), is one of the most accurate techniques to test gravitational physics and Einstein's theory of General Relativity.
PAOLOZZI, Antonio, SINDONI, GIAMPIERO, Erricos C. Pavlis, Neumayer Hans, Hans Neumayer, Rolf Koenig, John Ries, Giampiero Sindoni, Richard Matzner, Ignazio Ciufolini, Antonio Paolozzi   +10 more
core   +2 more sources