Research on Screw Propulsion Performance of Amphibious Robot by Pengfei XU, Zipeng WANG, Hailong LIN, Yan KAI, Qiao HU, Jianye SU

“…The traditional amphibious locomotion mode mainly features the dual system of wheel or track combined with a propeller. In contrast, single-system amphibious locomotion mode has become a research hotspot in recent years because of its low system complexity and high efficiency. …”
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Control system for noise-resistant electronic speed controller of a brushless electric motor for an unmanned aerial vehicle by M. V. Parinov, A. N. Yurov, Ya. V. Skitskiy

“…One of these components is the speed controller of the brushless electric motor of the propeller motor group. At the current time, Russian industry, however, does not mass-produce them. …”
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Features of “All LNA” Duplexes Showing a New Type of Nucleic Acid Geometry by Charlotte Förster, André Eichert, Dominik Oberthür, Christian Betzel, Reinhard Geßner, Andreas Nitsche, Jens P. Fürste

“…The structures of “all” LNA homoduplexes, however, exhibit significant differences in their overall geometry, in particular a decreased twist, roll and propeller twist. This results in a widening of the major groove, a decrease in helical winding, and an enlarged helical pitch. …”
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Astern Running of Heavy-Tonnage Vessels in an Ice Channel by Aleksei Dobrodeev, Kirill Sazonov

“…In this mode of operation, we have a number of factors contributing to the more efficient passage of ice provided by the small angle of the sternpost, making it easier for ice floes to dive under the hull, as well as the suction produced by the propellers. Moreover, the propeller slipstreams wash away the submerged ice outside the channel edges and reduce the ice friction of the underwater hull. …”
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Aircraft hybrid-electric environment for analysis and design (AHEAD) applied on a fixed-wing drone by Manuel A. Rendón, Patrícia H. Hallak, Yipsy Roque Benito, Marcelo Assato, Camila de Oliveira Cunha, Daniel Miranda Esther, Rafael Grande Pancini Delmonte, Denys Pinto Gonçalves

“…The aircraft is modeled in SUAVE and OpenVSP [1], propeller in QBlade [2], ICE in Diesel-RK [3], electrical components in MATLAB®/SIMULINK®, and the method algorithm is programmed in Python. …”
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Spin-down of Solar-mass Protostars in Magnetospheric Accretion Paradigm by Shinsuke Takasao, Masanobu Kunitomo, Takeru K. Suzuki, Kazunari Iwasaki, Kengo Tomida

“…With a particular focus on the propeller regime for solar-mass stars, we propose a new picture of stellar spin-down based on our recent 3D magnetohydrodynamic simulation and stellar evolution calculation. …”
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Τhiazolidine-4-One Derivatives with Variable Modes of Inhibitory Action Against DPP4, a Drug Target with Multiple Activities and Established Role in Diabetes Mellitus Type II by Dionysia Amanatidou, Phaedra Eleftheriou, Anthi Petrou, Athina Geronikaki, Theodoros Lialiaris

“…According to the docking results, two probable sites of binding for uncompetitive inhibitors were highlighted in the wider area of the active site and in the propeller loop. <b>Conclusions:</b> Potent inhibitors with IC₅₀ at the nM range and competitive, non-competitive, uncompetitive, and mixed modes of action, one better than sitagliptin, were found. …”
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Effects of Surface Waviness on the Nonlinear Vibration of Gas Lubricated Bearing-Rotor System by Jian Li, Shaoqi Yang, Xiaoming Li, Qing Li

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Promoting Optimal Physical Exercise for Life: An Exercise and Self-Management Program to Encourage Participation in Physical Activity after Discharge from Stroke Rehabilitation—A F... by Avril Mansfield, Svetlana Knorr, Vivien Poon, Elizabeth L. Inness, Laura Middleton, Louis Biasin, Karen Brunton, Jo-Anne Howe, Dina Brooks

“…A high proportion (11/16) of eligible PROPEL program participants consented to the study. …”
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Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt by Yanhua Li, Shihui Xiong, Yuan Li, Xiaogang Li, Yuquan Wen, Huina Mu, Zhiliang Li

“…To identify the shock generated sources of shear type explosive bolt, five kinds of explosive bolts with different states, including high preload, low preload, no preload, no piston shear, and only propellant combustion, were designed. The decoupling of four kinds of shock sources, including the collision of propellant combustion, piston shear weak surface, end of piston stroke, and preload release, was realized. …”
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Recent Experimental Efforts on High-Pressure Supercritical Injection for Liquid Rockets and Their Implications by Bruce Chehroudi

“…Pressure and temperature of the liquid rocket thrust chambers into which propellants are injected have been in an ascending trajectory to gain higher specific impulse. …”
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The Analytical Method to Compute the Strain on the Soft PSD in Double-Pulse SRM by Chunguang Wang, Guiyang Xu

“…It is found that the main factors affecting the circumferential strain of the soft PSD are the circumferential strain of the inner surface of the propellant grain and the gap between the soft PSD and the propellant grain. …”
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Inertial Vibration Characteristics of Track Chassis Caused by Reciprocating Motion of Crank Slider by Zhong Tang, Yu Li, Yuepeng Zhou, Haotian Zhang

“…The crank slider of self-propelled baling machinery is used for straw compression on the crawler chassis structure. …”
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Design and Kinematics Simulation of Adhesive Tape Fixing Devices of Self-walking Winding Packaging Robots Based on Adams by Shi Yalei, Wang Liangwen, Liu Yiyang, Li Weiwei, Li Feifei, Li Zipeng

“…The development of a self-propelled winding and packaging robot can significantly push up the technological progress of the industry, and the key to the development of this robot is the design of the packaging film fixing device. …”
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Ionic Liquid‐Filled Polyamide Microcapsules Obtained by Interfacial Polymerization by Robin Scholl, Dominic Freudenmann

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Experimental Investigations of a Krypton Stationary Plasma Thruster by A. I. Bugrova, A. M. Bishaev, A. V. Desyatskov, M. V. Kozintseva, A. S. Lipatov, M. Dudeck

“…Stationary plasma thrusters are attractive electric propulsion systems for spacecrafts. The usual propellant is xenon. Among the other suggested propellants, krypton could be one of the best candidates. …”
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The concept of reducing the man-made impact of launches of the promising Irtysh launch vehicle in the impact areas of the Baikonur cosmodrome by B. T. Suimenbayev, V. I. Trushlyakov, G. T. Yermoldina, Zh. B. Suimenbayeva, A. M. Bapyshev

“…Scientific and methodological approaches to minimizing the man-made impact of launches of promising carrier rockets of the «Irtysh» type by oxygen-kerosene main liquid-propellant rocket engines of the Baiterek rocket complex in areas of falling of the Baikonur cosmodrome are considered. …”
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Numerical Study on Combustion and Atomization Characteristics of Coaxial Injectors for LOX/Methane Engine by Jiabao Xu, Ping Jin, Ruizhi Li, Jue Wang, Guobiao Cai

“…The results show that the larger propellant momentum ratio and Weber number can improve the heat flux and combustion stability in shear coaxial injector, while the influence in swirl coaxial injector is relatively small. …”
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Design and Control of an Embedded Vision Guided Robotic Fish with Multiple Control Surfaces by Junzhi Yu, Kai Wang, Min Tan, Jianwei Zhang

“…This paper focuses on the development and control issues of a self-propelled robotic fish with multiple artificial control surfaces and an embedded vision system. …”
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Comparison of the Recoil of Conventional and Electromagnetic Cannon by Edward M. Schmidt

“…The recoil from an electromagnetic (EM) railgun is discussed and compared with that from conventional, propellant gas driven cannon. It is shown that, under similar launch conditions, the recoil of the EM gun is less than that of the powder gun; however, use of a muzzle brake on a powder gun can alter this relative behavior.…”
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