Design of CubeSat-Based Multi-Regional Positioning Navigation and Timing System in Low Earth Orbit by Georgios Tzanoulinos, Nori Ait-Mohammed, Vaios Lappas

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Achievements and Lessons Learned From Successful Small Satellite Missions for Space Weather‐Oriented Research by Harlan E. Spence, Amir Caspi, Hasan Bahcivan, Jesus Nieves‐Chinchilla, Geoff Crowley, James Cutler, Chad Fish, David Jackson, Therese Moretto Jorgensen, David Klumpar, Xinlin Li, James P. Mason, Nick Paschalidis, John Sample, Sonya Smith, Charles M. Swenson, Thomas N. Woods

Subjects: “…CubeSat…”
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Development of 6 U CubeSat’s Deployable Solar Panel with Burn Wire Triggering Holding and Release Mechanism by Tae-Yong Park, Bong-Geon Chae, Hyun-Ung Oh

“…In the present work, a deployable solar panel based on a burn wire triggering holding and release mechanism was developed for use of 6 U CubeSat. The holding and release mechanism was designed based on a nichrome burn wire cutting method widely used for CubeSat applications. …”
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Design of an Ultrawideband Circularly Polarized Printed Crossed-Dipole Antenna Based on Genetic Algorithms for S-Band CubeSat Applications by Jorge Simon, Hugo Perez-Guerrero, Jorge Sosa-Pedroza, Fabiola Martínez-Zúñiga, Juvenal Villanueva-Maldonado, Jorge Flores-Troncoso, Marco Cardenas-Juarez

“…As in any satellite, onboard antennas for CubeSats are crucial to establish communication with ground stations or other satellites. …”
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Consecutive Power Occurrences in Sturmian Words by Bell, Jason, Schulz, Chris, Shallit, Jeffrey

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Comparisons of Energetic Electron Observations Between FIREBIRD‐II CubeSats and POES/MetOp Satellites From 2018 to 2020 by I. M. Householder, K. A. Duderstadt, J. M. Pettit, A. T. Johnson, C.‐L. Huang, A. B. Crew, D. M. Klumpar, T. Raeder, J. G. Sample, M. Shumko, S. S. Smith, H. E. Spence

“…Results demonstrate the value of high‐resolution differential energy observations of electron precipitation by low‐cost CubeSats such as FIREBIRD‐II, especially during periods of low flux.…”
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A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites by Jorge Simon, Jorge Flores-Troncoso, Jose Luis Alvarez-Flores, Leonel Soriano-Equigua, Marco Cardenas-Juarez, Armando Arce, Edgar Briones, Jorge Sosa-Pedroza

“…The contribution of this work consists in the use of a fractal geometry to construct a low-cost slot antenna working at UHF frequencies over the limited area of the CubeSat faces and in order to optimize the area for an eventual coexistence with solar cells.…”
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Experimental Investigation on the Feasibility of Using Spring-Loaded Pogo Pin as a Holding and Release Mechanism for CubeSat’s Deployable Solar Panels by Tae-Yong Park, Su-Hyeon Kim, Hongrae Kim, Hyun-Ung Oh

“…A spring-loaded pogo pin as a holding and release mechanism of solar panels for cube satellite applications is proposed which functions as an electrical interface, a separation spring, and a status switch. …”
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Advances in Remote Sensing and Propulsion Systems for Earth Observation Nanosatellites by Georgios Fevgas, Thomas Lagkas, Panagiotis Sarigiannidis, Vasileios Argyriou

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APPLICATION ANALYTICAL INFORMATION SYSTEMS BASED ON OLAP TECHNOLOGY by L. Dumanskaya, S. Dumansky

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Numerical simulation of forced convective fish drying performance of different cabinet geometry by Joshua Kolawole Gbegudu, Ibrahim Ademola Fetuga, Olabode Thomas Olakoyejo, Manasseh Babale Shitta, Antonio Marcos de Oliveira Siqueira, Emmanuel Obiani Akari, Kolade Sodeeq Aderemi

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Small Satellite Mission Concepts for Space Weather Research and as Pathfinders for Operations by Amir Caspi, M. Barthelemy, C. D. Bussy‐Virat, I. J. Cohen, C. E. DeForest, D. R. Jackson, A. Vourlidas, T. Nieves‐Chinchilla

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Découverte d’une porte monumentale sur l’oppidum de Cordes-Chateloi à Hérisson by David Lallemand

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A new approach to the study of the size and the geometry effect on compressive strength in concrete by Ángel De La Rosa, Gonzalo Ruiz

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Deformation of Early Freezing Concrete in the Assessment Stress-Strain State of Reinforced Concrete Structures by D. S. Dekhterev, D. V. Elifantiev

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Effect of additional dimensions and views in the echocardiographic determination of 3‐dimensional left ventricular volume in myxomatous mitral valve disease in dogs by Weihow Hsue, Cortney E. Pelzek, Samantha Siess, Benjamin A. Terhaar, Shana B. Mintz, Romain Pariaut

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La topographie et les fortifications celtiques de l’oppidum biturige de Châteaumeillant-Mediolanum (Cher) by Sophie Krausz

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Ecological security driving mechanisms and optimization of zoning in Chinese urban agglomerations: A case study of the central plains urban agglomeration by Jinyuan Zhang, Xuning Qiao, Yongju Yang, Liang Liu, Yalong Li, Shengnan Zhao

Subjects: “…Three-dimensional Rubik’s Cube Model…”
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Reliability analysis of passive residual heat removal system for large advanced pressurized water reactors by Tianrui Li, Xinkun Xiao, Guoqing Lu, Shikang Chen, Ronghua Chen, Wenxi Tian

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Survey on approaches of stream cipher cryptanalysis by Zhaocun ZHOU, Dengguo FENG

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