Firing Control Optimization of Impulse Thrusters for Trajectory Correction Projectiles by Min Gao, Yongwei Zhang, Suochang Yang

“…Further simulations show that the impact point dispersion is mainly influenced by the total impulse deployed, and the impulse, number, and firing interval need to be optimized to reduce the impact point dispersion of rockets. Live firing experiments with two trajectory correction rockets indicate that the firing control scheme works effectively.…”
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Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter by Andres Spicher, James LaBelle, John W. Bonnell, Roger Roglans, Chrystal Moser, Stephen A. Fuselier, Scott Bounds, Lasse B. N. Clausen, Francesca Di Mare, Connor A. Feltman, Yaqi Jin, Craig Kletzing, Wojciech J. Miloch, Jøran I. Moen, Kjellmar Oksavik, Rhyan Sawyer, Toru Takahashi, Tim K. Yeoman

“…Abstract We investigate the nature of small‐scale irregularities observed in the cusp by the Twin Rockets to Investigate Cusp Electrodynamics‐2 (TRICE‐2) in regions of enhanced phase scintillations and high‐frequency coherent radar backscatter. …”
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THE YOUNG LEARNERS’ PERCEPTION TOWARDS ENGLISH INSTRUCTIONAL PRACTICES USING VIRTUAL PLATFORMS by Purwanti Taman, Sukma Septian Nasution, Tommy Hastomo, Nur Najibah Sukmawati, Laksmy Ady Kusumoriny

“… The popularity of virtual-learning platforms as an alternative for instructional practices during the pandemic is rocketing yet students’ perceptions to the implementation are not optimally gauged especially to young learners. …”
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MUBEM & SAC: STEM Based Science and Nature Camp by Hasan Zuhtu Okulu, Ayse Oguz-Unver, Sertac Arabacioglu

“…The participants found the opportunity to use telescopes, experience an extensive archaeological excavation, observe the near-nano size object with electron microscopes, construct a bridge like an engineer, and design artifacts like rockets and holograms during the camp. According to results, the science and nature camp supported participants’ STEM attitudes and participants' views on the science and nature camp were positive. …”
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Giant Photoluminescence Enhancement of Ga‐Doped ZnO Microwires by X‐Ray Irradiation by Siyuan He, Shuiyan Cao, Ying Liu, Wenfa Chen, Pin Lyu, Weidian Li, Jincheng Bao, Wenhui Sun, Caixia Kan, Mingming Jiang, Yanpeng Liu

“…Under moderate doses (≤ 150 Gy), the photoluminescence monotonically rockets up with X‐ray dose increment and achieves nine‐fold enhancement at a dose of ≈150 Gy, recording high photoluminescence improvement of ZnO microwires to date. …”
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Science highlights from the Kjell Henriksen Observatory on Svalbard by Katie Herlingshaw, Noora Partamies, Charlotte M. van Hazendonk, Mikko Syrjäsuo, Lisa J. Baddeley, Magnar G. Johnsen, Nina K. Eriksen, Ian McWhirter, Anasuya Aruliah, Mark J. Engebretson, Kjellmar Oksavik, Fred Sigernes, Dag A. Lorentzen, Takanori Nishiyama, Matthew B. Cooper, John Meriwether, Stein Haaland, Daniel Whiter

“…KHO’s diverse instrumentation, combined with other co-located optical and radar infrastructure, and in situ measurements from satellites and sounding rockets, has paved the way for impactful multi-instrument studies. …”
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OPERATION «BROTHER’S KEEPER» IN CONTEXT OF THE PALESTINIAN-ISRAELI STANDOFF by V. M. Morozov, A. A. Ermakov

“…The results of the operation «Brother's Keeper» suggested that the radicals of the West Bank may get developed underground infrastructure and developed infrastructure for production of rockets. The events of summer 2014 in zone of the Palestinian- Israeli conflict showed that escalation may spread from one part of the Palestinian land to another.…”
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Collector and philatelic press in the RSFSR/USSR during the first half of the 1920s: From pluralism to monopolism by A.V. Yakub, N.V. Yakub

“…In the early 1920s, the number of collector periodicals rocketed. By the end of 1922–first half of 1923, the dialog between them finally turned into a monologue of one edition promoting the positions of the state. …”
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Low-temperature tribological properties of Si3N4 ceramic composites incorporating nano/microscale graphene and Si3N4 whisker by Fei Chen, Xiaobo Sun, Bin Fang, Ke Yan, Bei Yan

“…Si3N4 ceramic bearings have demonstrated significant potential in augmenting the performance of liquid rockets. However, the operational conditions, including reciprocating use, ultra-high-speeds, and high-load impacts, impose more stringent requirements on their self-lubricating performance. …”
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Molecular dynamics simulation of the interaction between polybutylene terephthalate and A3 during thermal-oxidative aging by Kong Lingze, Sun Weiqi, Zhao Hongqiang, Zhou Wei, Guo Feng, Zhou Bin, Shi Yumin, Li Li, Li Kun, Zhong Ruiqi

“…Polybutylene terephthalate (PBT) elastomers generated via the copolymerization of 3,3-bis(azidomethyl) oxetane and tetrahydrofuran have been widely used as a matrix for solid engines in rockets, missiles, and spacecraft because of their positive standard enthalpies of formation. …”
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Significance of solar radiation and viscous dissipation on oscillatory and steady convective heat transfer around buoyancy-driven sphere using FDM scheme by Alanoud Alsuhaymi, Musaad S. Aldhabani

“…Thermal radiation is used in the development of nuclear reactors, fire propagation, jet motion, chemical manufacturing, missile engine power, rockets, ships, space exploration, supersonic weapons, and gasoline turbines. …”
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Investigation of Sonic Under-expanded Jets Using Slotted Rectangular Mechanical Tabs by K. Anusindhiya, G. Vinayagamurthy, K. Sathish Kumar

“…In aerospace engineering, understanding how jets behave can assist in increase / decrease thrust, decrease drag, improve fuel efficiency and reduce jet associated noise in aircraft engines and rockets. The flow control of jets is necessary for faster mixing and spreading, which can lead to much important aspects of noise reduction. …”
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Exposure to perchlorate via drinking water from eight major water basins in China and its health risks across different age groups by Jia Lyu, Yongyan Chen, Lan Zhang, Xu Yan, Muyesaier Tudi

“…., emissions from the production of rockets and missiles, firework production was identified as the dominant source of perchlorate exposure via drinking water in this study. …”
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Methodological and practical aspects of using satellite imagery to assess the military impact on soils by Vitalii Lebed, Maksym Solokha, Vadym Solovei, Anatolii Kucher, Ludmila Vorotyntseva

“…A spatial layer of objects was developed to represent various types of military-induced soil degradation within the community, including damage from continuous shelling (craters from shells, rockets, and bombs); soil compaction from the movement of military vehicles (tracks and pathways); fortification structures (defensive fighting positions and dugouts); and fires caused by shelling. …”
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