Results 161 to 170 of about 18,055 (209)

Alteration of twilight sky brightness profile by light pollution. [PDF]

Sci Rep
Faid MS, Shariff NNM, Hamidi ZS, Wahab RA, Ahmad N, Mohd Nawawi MSA, Nahwandi MS.   +6 more
europepmc   +1 more source

Four-Ce:Nd:YAG-rod solar laser with 4.49% conversion efficiency through Fresnel lens. [PDF]

Sci Rep
Costa H, Liang D, Almeida J, Tibúrcio BD, Vistas CR.   +4 more
europepmc   +1 more source

Uncertainty analysis of initial orbit determination in the minimum radar admissible region. [PDF]

Sci Rep
Zhang Y, Xue J, Tao X, Zhao S.
europepmc   +1 more source

Microwave Receiving System Based on Cryogenic Sensors for the Optical Big Telescope Alt-Azimuth. [PDF]

Sensors (Basel)
Balega Y, Bubnov G, Chekushkin A, Dubrovich V, Edelman V, Gunbina A, Kapustin S, Khabarova T, Kukushkin D, Lapkin I, Mansfeld M, Maruhno A, Parshin V, Raevskiy A, Stolyarov V, Tarasov M, Valyavin G, Vdovin V, Yakopov G, Yusupov R, Zemlyanukha P, Zinchenko I.   +21 more
europepmc   +1 more source

Semi-Physical Simulation Method for Stellar Maps with Color Temperature Information. [PDF]

Sensors (Basel)
Zhang Y, Zhao B, Zhang K, Zhang J, Yang S, Yang D, Ren T, Ren D, Yang J, Sun J.   +9 more
europepmc   +1 more source

Hybrid Unsupervised-Supervised Learning Framework for Rainfall Prediction Using Satellite Signal Strength Attenuation. [PDF]

Sensors (Basel)
Laon P, Sahavisit T, Pourbunthidkul S, Puangragsa S, Wichittrakarn P, Phasukkit P, Houngkamhang N.   +6 more
europepmc   +1 more source

Shedding new light on the context and temporality of Iberian warrior stelae: The Cañaveral de León 2 Stela and Las Capellanías burial complex (Huelva, SW Spain). [PDF]

PLoS One
García Sanjuán L, Rivera-Jiménez T, Díaz-Guardamino M, Wheatley D, Lozano Rodríguez JA, Donaire Romero T, González-García AC, Montero Artús R, Ruiz Flores J, Bermejo Meléndez J, Rogerio-Candelera MÁ, Ling J, Andrieux E, Bailiff I.   +13 more
europepmc   +1 more source

Active Compensation Technology for the Target Measurement Error of Two-Axis Electro-Optical Measurement Equipment. [PDF]

Sensors (Basel)
Lan L, Hua F, Fang F, Jiang W.
europepmc   +1 more source

A CNN-LSTM model using elliptical constraints for temporally consistent sun position estimation. [PDF]

Heliyon
Mpabulungi M, Yu K, Hong H.
europepmc   +1 more source

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An Automatic System for Determining Astronomical Azimuth

Measurement Techniques, 2015
Results of a study to create a high-precision system for determining astronomical azimuth are presented. The composition, structural features, and algorithmic support of the device are considered. Results of an estimation of the precision of azimuthal measurements that confirm the high precision characteristics of the device are presented.
N I Kotov
exaly   +2 more sources