Results 91 to 100 of about 2,311 (257)

An Empirical Study On Imaging Sensitivity Of SKA1-LOW Based on Point Source Sensitivity

The Astronomical Journal
The Square Kilometre Array (SKA) radio telescope will achieve unparalleled sensitivity and angular resolution, substantially progressing our research into the formation and development of the early universe.
Zhaotong Xie, Feng Wang, Ying Mei, Hui Deng, Yunjin Zhu   +4 more
doaj   +1 more source

Research Progress of Three‐Terminal Perovskite/Silicon Tandem Solar Cells Based on Back‐Contact Silicon

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Perovskite/silicon tandem solar cells offer efficiencies beyond 30%, yet conventional architectures face trade‐offs between optical performance and current matching. Three‐terminal tandems employing silicon back‐contact bottom cells eliminate the current‐matching constraint while minimizing optical losses, offering superior energy yield under real ...
Yunhao Fan, Sheng Ma, Huanpei Huang, Zhengping Li, Wenzhong Shen   +4 more
wiley   +1 more source

Study of Sky Radio Frequency Interference Background Level Behavior During the Partial Solar Eclips on 25 Oct. 2022 at The Baghdad University Location

Al-Mustansiriyah Journal of Science
Radiofrequency interference (RFI) describes the weakening of radio astronomy transmissions caused by man-made radio signal noise in radio telescope observation indicates the level of radio frequency noise in the sky at all times, regardless of any ...
Zina Fadel Kahdim, Kamal M. Abood
doaj   +1 more source

Excising terrestrial radio interference in low frequency radio astronomy [PDF]

Monthly Notices of the Royal Astronomical Society, 1982
B. L. Kasper, F. S. Chute, D. Routledge
openaire   +1 more source

High Cooling Rate for LRE123 Stoichiometry Control in Preparation of High‐Tc Bulk Superconductors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review presents the cooling‐rate‐control melt‐growth (CRCMG) method as an effective strategy for regulating LRE123 cation stoichiometry. By accelerating the cooling rate during crystallization, oxygen vacancies are increased in the growing lattice, which suppresses LRE3+/Ba2+ substitution and yields near‐ideal 1:2:3 stoichiometry with enhanced ...
Yanhan Zhu, Xin Yao
wiley   +1 more source

Neuromorphic astronomy: an end-to-end SNN pipeline for RFI detection on hardware

Neuromorphic Computing and Engineering
Imminent radio telescope observatories provide massive data rates making deep learning based processing appealing while simultaneously demanding real-time performance at low-energy; prohibiting the use of many artificial neural network based approaches ...
Nicholas J Pritchard, Andreas Wicenec, Richard Dodson, Mohammed Bennamoun, Dylan R Muir   +4 more
doaj   +1 more source

Materials and Music: Selective Imperfection as a Generative Framework for Analysis, Creativity and Discovery

Interdisciplinary Materials, EarlyView.
Vibrations in matter, from spider webs to molecules, water to flames, share a grammar with music. We propose that creativity emerges when constraints force expansion beyond existing possibilities. Selective imperfection restores balance, enabling invention.
Markus J. Buehler
wiley   +1 more source

Artificial intelligence–driven decoupling structure–activity relationship for lithium‐ion batteries

InfoScience, EarlyView.
Artificial intelligence can efferently accelerate the high‐throughput screening of battery materials, the analysis of multiphase mechanisms, and the precise prediction of capacity and cycle life. This review systematically summarizes the applications of machine learning (ML) in decoupling the complex structure‐activity relationships of lithium‐ion ...
Tao Wang, Yuhang Meng, Tianhao Chen, Xiangfen Jiang, Yoshio Bando, Jinjue Zeng, Xuebin Wang   +6 more
wiley   +1 more source

A new broad K/Ka-band receiver (18.0–32.3 GHz) for the Yebes Observatory’s 40 meter radio telescope★

Astronomy & Astrophysics
Since 2010, the 40 m radio telescope of the Yebes Observatory has been devoted to very long baseline interferometry (VLBI) and single-dish observations. Up until 2019, it covered frequency bands between 2 GHz and 90 GHz in discontinuous and narrow radio ...
López-Pérez J. A., Tercero F., Gallego-Puyol J. D., Albo-Castaño C., Amils-Samalot R., Bautista-Durán M., Barbas L., Beltrán F., Díez-González M., García-Carreño P., García-Merino A., García-Pérez O., Gómez-Molina G., González-García J., López-Fernández I., Malo-Gómez I., Martínez-Parra A., Patino-Esteban M., Tercero B., Marcelino N., Esplugues G., Gallardo Cava I., García-Miró C., Gómez-Garrido M., Santander-García M., Tarrío P., Vidal-García A., de Vicente P., Cernicharo J.   +28 more
doaj   +1 more source

LOFAR: opening a new window on low frequency radio astronomy

, 2011
Invited talk at the 11th Asian-Pacific Regional IAU Meeting; NARIT Conference Series, Vol. 1; S. Komonjinda, Y. Kovalev, and D. Ruffolo, eds. (8 pages, 6 figures)
Morganti, R., Heald, G., Hessels, J., Wise, M., Alexov, A., De Gasperin, F., Kondratiev, V., McKean, J., Orru`, E., Pizzo, R., van Weeren, R.   +10 more
openaire   +2 more sources