Showing 761 - 780 results of 2,327 for search '"navigation"', query time: 0.06s Refine Results
  1. 761

    Breaking Undular and Breaking Surges Advancing in Still Water by Feidong Zheng, Xueyi Li

    Published 2023-01-01
    “…The propagation of secondary surges can lead to unexpected interaction events with navigation ships and downstream hydraulic structures; hence, they may cause navigation accidents and structural damage. …”
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    Article
  2. 762

    General Design Layout of Datengxia Ship Lock by LI Yawen, CHEN Guihua

    Published 2022-01-01
    “…The Datengxia hydro project is a key project to open the 100-million-ton golden waterway of the Xijiang River,with high navigation requirements for the dam-site reach and a huge freight volume.The general design layout of the navigation structure ship lock plays a vital role in the layout scheme,freight volume,operation management,and investment of the whole hydro project.For the general design of the ship lock, the position of the ship lock is first selected according to the topographical and geological conditions of the project area and the layout requirements of the hydro project.On this basis,this study designs the lock head,lock chamber,water conveyance system,upstream and downstream approach channels,entrance area and connecting section,anchorage to be locked,etc.Additionally,the structural dimensions of the water conveyance system and rectification measures in the entrance area are optimized according to the model test results.The Datengxia ship lock has reached the highest level of ship locks built at home and abroad in terms of the scale,water head,water-level variation amplitude conditions,and hydraulic index requirements.Its general layout can provide a certain reference for the design of large-scale and high water-head ship locks.…”
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    Article
  3. 763

    Application of a Multi‐Layer Artificial Neural Network in a 3‐D Global Electron Density Model Using the Long‐Term Observations of COSMIC, Fengyun‐3C, and Digisonde by Wang Li, Dongsheng Zhao, Changyong He, Yi Shen, Andong Hu, Kefei Zhang

    Published 2021-03-01
    “…Abstract The ionosphere plays an important role in satellite navigation, radio communication, and space weather prediction. …”
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    Article
  4. 764

    Changes in movement patterns in relation to sun conditions and spatial scales in wild western gorillas by B. Robira, S. Benhamou, E. Obeki Bayanga, T. Breuer, S. Masi

    Published 2024-04-01
    “…The mechanisms underpinning primate navigating ability remain nonetheless mostly unknown. …”
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    Article
  5. 765
  6. 766

    A Low-Cost Model Vehicle Testbed with Accurate Positioning for Autonomous Driving by Benjamin Vedder, Jonny Vinter, Magnus Jonsson

    Published 2018-01-01
    “…Our testbed can be used for research within autonomous driving, for carrying test equipment, and other applications where low cost and accurate positioning and navigation are required.…”
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    Article
  7. 767

    Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex by Xiaoyang Long, Daniel Bush, Bin Deng, Neil Burgess, Sheng-Jia Zhang

    Published 2025-01-01
    “…Abstract Successful navigation relies on reciprocal transformations between spatial representations in world-centered (allocentric) and self-centered (egocentric) frames of reference. …”
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    Article
  8. 768
  9. 769
  10. 770

    Fault-Tolerant Guidance of Rocket Vertical Landing Phase Based on MPC Framework by Jingqi Li, Yaosong Long, Mao Su, Lei Liu, Bo Wang, Zhongtao Cheng

    Published 2022-01-01
    “…Then, we design an integrated guidance, navigation, and control (GNC) system to enhance the fault tolerance and robustness of the guidance method. …”
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    Article
  11. 771

    Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS by Michael Felux, Mihaela-Simona Circiu, Jiyun Lee, Florian Holzapfel

    Published 2017-01-01
    “…The Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. …”
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    Article
  12. 772

    Mobile Robot Path Planning Based on Improved Particle Swarm Optimization and Improved Dynamic Window Approach by Zhenjian Yang, Ning Li, Yunjie Zhang, Jin Li

    Published 2023-01-01
    “…Thirdly, a method of selecting navigation points is proposed to guide local path planning. …”
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    Article
  13. 773

    Is Single-View Fluoroscopy Sufficient in Guiding Cardiac Ablation Procedures? by Pascal Fallavollita

    Published 2010-01-01
    “…In conclusion, this paper describes our achievements and shortfalls in developing an affordable fluoroscopic navigation system to guide RF catheter ablation of cardiac arrhythmias.…”
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    Article
  14. 774
  15. 775

    A Voting-Based Star Identification Algorithm Using a Partitioned Star Catalog by Xu He, Lei Zhang, Jiawei He, Zhiya Mu, Zhuang Lv, Jun Wang

    Published 2025-01-01
    “…Building on this, a navigation feature library using partitioned catalog neighborhoods as a basic unit is constructed. …”
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    Article
  16. 776

    Simulation Testing of Maritime Cyber-Physical Systems: Application of Model-View-ViewModel by Dong-Chul Lee, Kyung-Min Seo, Hee-Mun Park, Byeong Soo Kim

    Published 2022-01-01
    “…Six significant physical subsystems within the NCS are simulated and tested: a ship-steering system, an inertial navigation system, a global navigation satellite system, a periscope, sonar systems, and a plotting board. …”
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  17. 777

    Using Virtual Reality to Complement Traditional Wheelchair Skills Training Methods: A Literature Review by Chantal Zorzi, Alexandra Covaci, Gianluca Marcelli

    Published 2024-12-01
    “…It was found that most VR systems were designed for powered wheelchair users with joystick navigation. VR environments included tasks from basic navigation to complex real-world scenarios. …”
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  18. 778

    Laboratory validation of patient-specific templating for total knee arthroplasty by Mahmoud A. Hafez, Arne Jansen, Frank Portheine, Branislav Jaramaz

    Published 2025-01-01
    “…To test the reliability of the PST technique, five observers positioned the PST templates five times over the distal femur and proximal tibial whilst a navigation system was used to measure the level of bone cutting, coronal and sagittal alignment, and rotation in both femur and tibia. …”
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  19. 779

    An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming by Xueyun Wang, Jingjuan Zhang, Wei Wang, Pengyu Gao

    Published 2014-01-01
    “…Ultratightly coupled (UTC) architecture is believed to be the best architecture for Global Positioning System (GPS) and Inertial Navigation System (INS) integration system due to the advanced data fusion strategy and effective mutual assistance between the subsystems. …”
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  20. 780

    A Conceptual COLREGs-based Obstacle Avoidance Algorithm Implementing Dynamic Path Planning and Collision Risk Assessment by Hasan Uğurlu, Omar Djecevic, Ismail Çiçek

    Published 2024-12-01
    “…The algorithm also has the potential to serve as a decision support system on currently manned vessels, enhancing safe navigation. The study proposes a novel rule-based collision avoidance algorithm that adheres to COLREGs, utilizes the Collision Risk Index and ship domain for safety assessment, and combines dynamic path planning for collision-free navigation. …”
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    Article