Results 71 to 80 of about 4,892 (167)

A low jitter regenerative amplification picosecond pulse laser with the external trigger signal as local main wave for the SLR

Results in Optics
A distributed feedback picosecond (DFB) pulse laser has been designed with a single pulse energy of 5 pJ and a pulse width of 200 ps, resulting in a spectrum width of 0.12 nm.
Mingliang Long, Zhibo Wu, Ming Wen, Yan Liang, Haifeng Zhang, Hao Chang, Huarong Deng, Zhongping Zhang   +7 more
doaj   +1 more source

Metamaterial‐Enhanced Solar‐Driven Processes for Energy Conversion and Water Treatment

Advanced Science, Volume 12, Issue 34, September 11, 2025.
This review explores how metamaterials revolutionize solar‐driven process for energy conversion and water treatment through enhanced light absorption, LSPR, charge separation, and bandgap engineering. By leveraging unique nanostructures and AI‐guided design, these engineered materials drive CO₂ reduction, water splitting, pollutant degradation, and ...
Xuechen Jing, Zhehao Sun, Hang Yin, Kaili Liu, Yi‐Lun Chen, Shuwen Cheng, Zongyou Yin   +6 more
wiley   +1 more source

Estimating global geodetic parameters using SLR observations to Galileo, GLONASS, BeiDou, GPS, and QZSS

Earth, Planets and Space, 2019
All Galileo, GLONASS, QZSS, and BeiDou satellites are equipped with laser retroreflector arrays dedicated to satellite laser ranging (SLR). Using SLR data to new GNSS systems allows for estimating global geodetic parameters, such as Earth rotation ...
K. Sośnica, G. Bury, R. Zajdel, D. Strugarek, M. Drożdżewski, K. Kazmierski   +5 more
doaj   +1 more source

Tailoring an Fe–Ov–Ce–Triggered Phase‐Reversible Oxygen Carrier for Intensified Chemical Looping CO2 Splitting

Carbon Energy, Volume 7, Issue 9, September 2025.
A phase‐reversible CeO2‐x·Fe·CaO↔CeO2·Ca2Fe2O5 oxygen carrier is designed and synthesized with enhanced CO2‐splitting capability and robust redox durability. The engineered Fe–Ov–Ce structure acts as an initiator to induce CO₂ activation and dissociation, Fe acts as an active phase to accommodate oxygen ions from CO₂ dissociation, and CaO functions as ...
Zhao Sun, Kun Lei, Louise R. Smith, Nicholas F. Dummer, Richard J. Lewis, Haifeng Qi, Kieran J. Aggett, Stuart H. Taylor, Zhiqiang Sun, Graham J. Hutchings   +9 more
wiley   +1 more source

Estimation and Attribution of Horizontal Land Motion Measured by the Greenland GNSS Network

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract Horizontal land motion, as observed by geodetic techniques such as Global Navigation Satellite Systems (GNSS), is generally dominated by tectonic plate movement. However, in regions that are currently or formerly glaciated, such as Greenland, the deformation of the solid Earth due to surface loading complicates the separation of tectonic and ...
D. Longfors Berg, S. Adhikari, J. Hassan, R. Steffen, H. Steffen, M. Willis, S. A. Khan   +6 more
wiley   +1 more source

Earth rotation and polar motion from laser ranging to the moon and artificial satellites [PDF]

Earth-based laser ranging to artificial satellites and to the moon is considered as a technique for monitoring the Earth's polar motion and diurnal rotation. The kinematics of Earth rotation as related to laser ranging is outlined.
Aardoom, L.
core   +1 more source

Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.

Advanced Photonics Research, Volume 6, Issue 8, August 2025.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley   +1 more source

Free Space Laser Communication Experiments from Earth to the Lunar Reconnaissance Orbiter in Lunar Orbit [PDF]

Laser communication and ranging experiments were successfully conducted from the satellite laser ranging (SLR) station at NASA Goddard Space Flight Center (GSFC) to the Lunar Reconnaissance Orbiter (LRO) in lunar orbit.
Fong, Wai H, Hoffman, Evan D., Krainak, Michael A., Mao, Dandan, McGarry, Jan F., Neumann, Gregory A., Skillman, David R., Smith, David E., Sun, Xiaoli, Zellar, Ronald S.   +9 more
core   +1 more source

Conservative evaluation of the uncertainty in the LAGEOS-LAGEOS II Lense-Thirring test

, 2009
We deal with the test of the general relativistic gravitomagnetic Lense-Thirring effect currently ongoing in the Earth's gravitational field with the combined nodes \Omega of the laser-ranged geodetic satellites LAGEOS and LAGEOS II.
A. Milani, B. D. Tapley, B. Mashhoon, C. W. F. Everitt, C. W. F. Everitt, Ch. Reigber, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, D. M. Lucchesi, E.C. Pavlis, F. J. Lerch, F. Vespe, H. Pfister, I. Ciufolini, I. Ciufolini, I. Ciufolini, I. Ciufolini, I. Ciufolini, I. Ciufolini, I. Ciufolini, J. C. Ries, J. C. Ries, J. C. Ries, J. Lense, L. Cugusi, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Iorio, L. Schiff, M. L. Ruggiero, M. R. Pearlman, P. Inversi, R. A. Patten Van, R. A. Patten Van, W. M. Kaula   +47 more
core   +1 more source

Research on the Autonomous Orbit Determination of Beidou-3 Assisted by Satellite Laser Ranging Technology

Remote Sensing
The Beidou Global System (BDS-3) innovatively achieves autonomous navigation using inter-satellite links (ISL) across the entire constellation, but it still faces challenges such as the limitations of the prior constraint orbital accuracy and the overall
Wei Xiao, Zhengcheng Wu, Zongnan Li, Lei Fan, Shiwei Guo, Yilun Chen   +5 more
doaj   +1 more source