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Zikang Jin, Zonghan Yu, Fanshuo Meng, Wei Zhang, Jingzhi Cui, Xiaolong He, Yuedi Lei and Omer Musa
The parametric design method is widely utilized in the preliminary design stage for hypersonic vehicles; it ensures the fast iteration of configuration, generation, and optimization. This study proposes a novel parametric method for a wide-range, wing-mo...
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Kun Li, Xinke Zhu, Huawei Qin and Fei Hou
Mobile Earthquake Recording in Marine Areas by Independent Divers (MERMAID) provides a possibility for long-term and large-scale observation of natural seismic P waves, but it does not have mobility and can only drift with ocean currents, resulting in ob...
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Linfei Hou, Honglin Liu, Ting Yang, Shuaibin An and Rui Wang
In addressing the morphing problem in vehicle flight, some scholars have primarily employed reinforcement learning methods to make morphing decisions based on task. However, they have not considered the constraints associated with the task process. The i...
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Liang Jiang, Ying Nan, Yu Zhang and Zhihan Li
Anti-interception guidance can enhance a hypersonic glide vehicle (HGV) compard to multiple interceptors. In general, anti-interception guidance for aircraft can be divided into procedural guidance, fly-around guidance and active evading guidance. Howeve...
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Soram Oh, Ju-Hyo Park, Hyun-Jung Kim, Hye-Jeong Kim, Eurok Shim, Jee-Yeon Woo, Hiran Perinpanayagam, Kyung-Kyu Choi and Seok Woo Chang
This study aimed to evaluate the effects of flexural stress on the torsional fracture resistance of NiTi glide path files. PathFile #16/02, RaCe #15/04, RaCe Evo #15/04, HyFlex EDM #15/03, TruNatomy Glider #17/02, and V Taper 2H #17/04 were examined by s...
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Kai Chen, Sensen Pei, Fuqiang Shen and Shangbo Liu
According to the trajectory characteristics of hypersonic boost-glide vehicles, a tightly coupled integrated navigation algorithm for hypersonic vehicles based on the launch-centered Earth-fixed (LCEF) frame is proposed. First, the strapdown inertial nav...
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Xiaojun Yu, Shibin Luo and Haiqiao Liu
Focusing on the large maneuver penetration of the hypersonic glide vehicle with multiple constraints and uncertain disturbance, a robust integrated guidance and control law, which can achieve the snake-shape maneuver, is designed. A snake-shape maneuver ...
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Alfonso Trinidad, Archit Navandar, Enrique Navarro and Santiago Veiga
(1) Background: The aim of the present research is to describe the kinematic characteristics of push start in competitive swimmers and to examine the role of the push start sub-phases on the overall start performance. (2) Methods: Seventy-four swimmers (...
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Xin Tian, Lianhong Zhang and Hongwei Zhang
The sailing efficiency of an underwater glider, an important type of marine environment detection and data collection equipment, directly affects its range and duration. The zero-angle-of-attack gliding can be achieved by adjusting the wing installation ...
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Ulises Martin, Jacob Ress, Juan Bosch and David M. Bastidas
Electrochemical corrosion of thermo-mechanically processed (TMP) and recrystallized Fe-30Mn-5Al-0.5C twinning-induced plasticity (TWIP) steels containing 30 wt.% Mn was studied in a 1.0 wt.% NaCl electrolyte solution. The alkaline nature of the corrosion...
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M. D. Hambarde,Ramakant Shrivastava,S.R. Thorat,O.P. Dale
Pág. 266 - 278
Due to higher ozone layer depletion potential of HCFC refrigerant, R22 which has been mostly used in house hold refrigeration will be phased out by 2020 as per Montreal Protocol and UNFCCC Regulations. R407C, a zeotropic refrigerant from HFC category is ...
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Yudong Hu, Changsheng Gao and Wuxing Jing
Aimed at joint state and parameter estimation problems in hypersonic glide vehicle defense, a novel moving horizon estimation algorithm via Carleman linearization is developed in this paper. First, the maneuver characteristic parameters that reflect the ...
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Mingjie Li, Chijun Zhou, Lei Shao, Humin Lei and Changxin Luo
The method proposed can be used for accurate trajectory generation of a re-entry glide vehicle in the flight range domain with distributed grid points. It also provides ideas for trajectory generation based on the guidance mechanism.
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Agnieszka Starek-Wójcicka, Agnieszka Sagan, Piotr Terebun, Michal Kwiatkowski, Emilia Osmólska, Marta Krajewska, Elzbieta Grzadka, Narumol Matsuyama, Nobuya Hayashi and Joanna Pawlat
This paper presents the results of an experiment based on using a Glide-arc type plasma reactor operating at atmospheric pressure for the quality of fresh pressed tomato juice, variety Bekas. The impact of after-glow plasma gas (air) on the physicochemic...
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Ali Raza and Hua Wang
This paper presents a two-phase guidance and control algorithm to extend the range and improve the impact point accuracy of a 122-mm rocket using a fixed canards trajectory correction fuze. The guidance algorithm consists of a unique glide and correction...
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Colin J. Pennycuick
Methods of observing birds in flight now include training them to fly under known conditions in wind tunnels, and fitting free-flying birds with data loggers, that are either retrieved or read remotely via satellite links. The performance that comes to l...
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Zinnyrah Methal, Ahmad Syahin Abu Talib, Mohd Supian Abu Bakar, Mohd Rosdzimin Abdul Rahman, Mohamad Syafiq Sulaiman and Mohd Rashdan Saad
This present study investigated the potential of passive flow control to reduce induced drag by using a micro-vortex generator (MVG) at a backward-facing step (BFS) location. A wing-in-ground (WIG) craft is a fast watercraft that resembles a dynamically ...
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Jia Song, Xindi Tong, Xiaowei Xu and Kai Zhao
In this paper, a real-time reentry guidance law for hypersonic vehicles is presented to accomplish rapid, high-precision, robust, and reliable reentry flights by leveraging the Time to Vector (Time2vec) and transformer networks. First, referring to the t...
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Archana Lakshmanan, Balamuralikrishnan Balasubramanian, Viji Maluventhen, Arunkumar Malaisamy, Rathinasamy Baskaran, Wen-Chao Liu and Maruthupandian Arumugam
Fucoidan, a polymer derived from seaweed, poses a broad range of biological applications, and its potential medicinal benefits have been widely studied over the past decade. In this study, fucoidan was extracted from marine macroalga Sargassum ilicifoliu...
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Shijun Zhao and Yulong Shan
Low-level wind shear is a vital weather process affecting aircraft safety while taking off and landing and is known as the ?aircraft killer? in the aviation industry. As a result, effective monitoring and warning are required. Several ramps detection alg...
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