Results 11 to 20 of about 42 (42)
A Hierarchical Planning Method for AUV Search Tasks Based on the Snake Optimization Algorithm
SensorsIn a complex and dynamic battlefield environment, enabling autonomous underwater vehicles (AUVs) to reach dynamic targets in the shortest possible time using global autonomous planning is a key issue affecting the completion of search tasks.
Zhiwen Wen +5 more
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Macro-microscopic Calculation of Five-dimensional Potential Energy Surface for 234U Fission
Yuanzineng kexue jishu, 2022 A key question about the fission process of a heavy nucleus is to probe the nuclear potential energy landscape and its evolution from the single groundstate compound nucleus over the top of the fission barrier and further to the scission point, finally ...
ZHU Xin;WANG Zhiming;LUO Changkai;NI Lei;ZHONG Chunlai;FAN Tieshuan
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Design of passive fault-tolerant controllers of a quadrotor based on sliding mode theory
International Journal of Applied Mathematics and Computer Science, 2015 In this paper, sliding mode control is used to develop two passive fault tolerant controllers for an AscTec Pelican UAV quadrotor. In the first approach, a regular sliding mode controller (SMC) augmented with an integrator uses the robustness property of
Merheb Abdel-Razzak +2 more
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TechnologiesTo address the challenges of strong coupling between resource allocation and collaborative scheduling in vehicle–UAV cooperative inspections of power distribution lines, as well as the difficulty in balancing efficiency and stability, this paper proposes
Kunxiao Wu +4 more
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A critique of the palaeovisitological hypothesis of Jesus Christ’s alien origin
Soter: Religijos Mokslo ŽurnalasThe pseudoscientific palaeocontact hypothesis suggests that aliens from other planets visited Earth in ancient times. Palaeovisitologists believe that ancient people encountering advanced space technology found it miraculous and therefore deified aliens ...
Gabrielius Edvinas Klimenka
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Приборы и методы измеренийModern technical means, including those using computerized components, provide new signal processing capabilities using spectral analysis. A method for calculating the velocity of an acoustic wave С from the spectrum of an echogram containing multiple ...
V. Strizhak, R. R. Khasanov
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Scientific ReportsReconfigurable modular robots can be used in application domains such as exploration, logistics, and outer space. The robots should be able to assemble and work as a single entity to perform a task that requires high throughput.
Ravikiran Pasumarthi +3 more
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Wireless sensor network optimization and dynamic scheduling for coal mine gas inspection
Meikuang AnquanFor the “long corridor” and “high dynamic” scenarios in underground coal mines, where the topology of the wireless sensor network (WSN) for gas inspection frequently changes, energy consumption and latency are difficult to balance, and abnormal alarms ...
Jian DENG +13 more
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UAV route planning based on United markov model and Improved A* algorithm
四川大学学报. 自然科学版, 2019 Experimenting an improved A* algorithm is used to plan the mission path of uav. The uav’s step length,the restriction of turning angle and flight height are introduced to effectively reduce the uav’s search space,and constraints such as terrain and ...
Gong Hao Ling, Zhou Xin Zhi, Ning Qian
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A Near-infrared Search for Helium in the Superluminous Supernova SN 2024ahr
The Astrophysical JournalWe present a detailed study of SN 2024ahr, a hydrogen-poor superluminous supernova (SLSN-I), for which we determine a redshift of z = 0.0861. SN 2024ahr has a peak absolute magnitude of M _g ≈ M _r ≈ −21 mag, rest-frame rise and decline times (50% of ...
Harsh Kumar +15 more
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