Space-Based Optical Observations on Space Debris via Multipoint of View by Zhao Li, Yidi Wang, Wei Zheng

“…In this paper, the space debris catalogue in LEO is fulfilled using multipoint of view (MPOV) observations constructed by a spacecraft formation. The dual-point of view (DPOV) observation is employed because it has higher cost-benefit ratio than other MPOV methods, and it required that the target is detectable for multiple optical sensors simultaneously. …”
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Life cycle cost-effectiveness estimation and optimization method for satellite by ZHAO Jianyu, WANG Jingyan, CHENG Zhuo, JIAO Jian, CHENG Yao

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Reduction EMI of BLDC Motor Drive Based on Software Analysis by Navid Mousavi, Tohid Rahimi, Homayoun Meshgin Kelk

“…The leakage currents of the motors, flow through common ground, will interfere with other equipment because of the high density of electrical and electronic systems in the spacecraft and aircrafts. Moreover, generally there are common DC buses in the mentioned systems, which aggravate the problem. …”
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Numerical Study of Hall Thruster Plume and Sputtering Erosion by Li Yan, Ping-Yang Wang, Yang-Hua Ou, Xiao-Lu Kang

“…Potential sputtering erosion caused by the interactions between spacecraft and plasma plume of Hall thrusters is a concern for electric propulsion. …”
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Finite-Time Control for Attitude Tracking Maneuver of Rigid Satellite by Mingyi Huo, Xing Huo, Hamid Reza Karimi, Jianfei Ni

“…The problem of finite-time control for attitude tracking maneuver of a rigid spacecraft is investigated. External disturbance, unknown inertia parameters are addressed. …”
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Fragmentation of Millimeter-Size Hypervelocity Projectiles on Combined Mesh-Plate Bumpers by Aleksandr Cherniaev, Igor Telichev

“…This numerical study evaluates the concept of a combined mesh-plate bumper as a shielding system protecting unmanned spacecraft from small (1 mm) orbital debris impacts. …”
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Solar System Motions and the Cosmological Constant: A New Approach by Lorenzo Iorio

“…Currently ongoing and planned interplanetary spacecraft-based missions should improve our knowledge of the planets' orbits allowing for more stringent constraints.…”
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Experimental Verification of a Simple Method for Accurate Center of Gravity Determination of Small Satellite Platforms by Dario Modenini, Giacomo Curzi, Paolo Tortora

“…We propose a simple and relatively inexpensive method for determining the center of gravity (CoG) of a small spacecraft. This method, which can be ascribed to the class of suspension techniques, is based on dual-axis inclinometer readings. …”
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Online Structural Health Monitoring of Rotating Machinery via Ultrasonic Guided Waves by Ming Li, Guang Meng, Hongguang Li, Jianxi Qiu, Fucai Li

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Study of the Propagation Characteristics of Terahertz Waves in a Collisional and Inhomogeneous Dusty Plasma with a Ceramic Substrate and Oblique Angle of Incidence by Qingwen Rao, Guanjun Xu, Pengfei Wang, Zhengqi Zheng

“…These results provide an important theoretical basis for the problem of communication blackout between ground and spacecraft.…”
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Self-Compensation for Disturbances in Differential Vibratory Gyroscope for Space Navigation by Valeriy Chikovani, Olha Sushchenko

“…The differential mode of operation can provide high resistance to external disturbances acting on the gyroscope under operating in launch, docking, and landing regimes of spacecraft. The differential mode of operation differs from the other two known modes by the presence of two, X and Y, measurement channels. …”
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Response to: Comment on “Does the Equivalence between Gravitational Mass and Energy Survive for a Composite Quantum Body?” by A. G. Lebed

“…The suggested idealized effect is as follows. A spacecraft moves protons of a macroscopic ensemble of hydrogen atoms with constant velocity in the Earth’s gravitational field. …”
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Comparative analysis of computing platforms for onboard micromodule of provisional image recognition by V. A. Kovalev, D. A. Paulenka, E. V. Snezhko, V. A. Liauchuk, A. A. Kalinovski

“…It is assumed that the corresponding versions of the micromodule can be installed on board of small spacecraft or light unmanned aerial vehicles (drones). …”
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Small Mars Mission Architecture Study by Claire E. Parfitt, Adam G. McSweeney, Lisa De Backer, Csilla Orgel, Andrew J. Ball, Michael Khan, Sanjay Vijendran

“…Given strict programmatic constraints, the focus of the study was on a low-cost (<250MEuro Cost at Completion), short mission development schedule with a cost-driven spacecraft design and mission architecture. The study concluded that small, low-cost Mars missions are technically feasible for launch within the decade.…”
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Impact Analysis of Different Trajectory Shapes on Optimization Based on Original Natural Algorithm by Yijing Chen, Ying Nan, Zhihan Li

“…Aiming at the guidance and control scheme of the spacecraft returning to the reentry trajectory in the real environment, the original natural algorithm is optimized by considering various reentry flight constraints, and the improved original natural algorithm is used to optimize the reentry trajectory of the Aerospaceplane. …”
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Visible and Infrared Image Fusion-Based Image Quality Enhancement with Applications to Space Debris On-Orbit Surveillance by Jiang Tao, Yunfeng Cao, Meng Ding, Zhouyu Zhang

“…In order to ensure the safety level of spacecraft, space debris perception via on-orbit visual sensors has become a promising solution. …”
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A low-cost autonomous and scalable hydroponics system for space farming by Jae Hyeon Ryu, Jeonghyun Baek, Zarin Subah

“…The proposed system is an autonomous, modular, scalable, and soilless food production platform (ASFP) that can be installed in a spacecraft by meeting requirements and constraints set by the National Aeronautics and Space Administration (NASA). …”
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Influence of Magnetic Fields on Precipitating Solar Wind Hydrogen at Mars by Sarah Henderson, Jasper Halekas, Zach Girazian, Jared Espley, Meredith Elrod

“…We seek to characterize the behavior of these protons in the presence of magnetic fields using data collected by the Mars Atmosphere and Volatile EvolutioN spacecraft. We find that backscattered penetrating proton flux is enhanced in regions where the magnetic field strength is greater than 200 nT. …”
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Flow of SWCNT and MWCNT based hybrid nanofluids in a semi-circular enclosure with corrugated wall by Sohail Nadeem, Ayesha Siddiqua, Jehad Alzabut

“…The phenomenon of heat transport has implementations in multiple fields including metal working, heating systems, thermal management in spacecraft, solar energy, and automobile engines. In the current novel work, heat transfer mechanism in a semi-circular enclosure with corrugated circular wall is studied numerically. …”
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In-situ observations of the magnetothermodynamic evolution of electron-only reconnection by D. S. Payne, M. Swisdak, J. P. Eastwood, J. F. Drake, P. S. Pyakurel, J. R. Shuster

“…The electromagnetic energy transport comes almost entirely from guide field contributions and is confined within the reconnection plane, while the most significant contribution to electron energy transport is independent of the drift velocity with additional out-of-plane signatures. Multi-spacecraft analysis suggests that the guide field energy is decreasing while the electron density is increasing, both evolving such that the system is moving toward a more uniform distribution of magnetic and thermal energy.…”
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