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Journal articles on the topic 'Autonomous lander'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Black, Kevin S., Gary R. Fones, Oli C. Peppe, Hilary A. Kennedy, and Ilhem Bentaleb. "An autonomous benthic lander:." Continental Shelf Research 21, no. 8-10 (2001): 859–77. http://dx.doi.org/10.1016/s0278-4343(00)00116-3.

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Zhang, Qiao, Chunming Dong, Zongze Shao, and Donghui Zhou. "Analysis of the Descent Process and Multi-Objective Optimization Design of a Benthic Lander." Journal of Marine Science and Engineering 11, no. 1 (2023): 224. http://dx.doi.org/10.3390/jmse11010224.

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The growing need for deep-sea biological research and environmental monitoring has expanded the demand for benthic landers. Compared with remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs), benthic landers can reduce overall operation cost and also possess longer endurance. Configuring a suitable descent velocity is important for benthic lander designs, helping them avoid retrieval failure and improve sea trial efficiencies. In this study, an effective scheme for the configuration and optimization of a self-developed benthic lander was outlined. First, the structural c

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Li, Jingyang, Hexi Baoyin, and Srinivas R. Vadali. "Autonomous Rendezvous Architecture Design for Lunar Lander." Journal of Spacecraft and Rockets 52, no. 3 (2015): 863–72. http://dx.doi.org/10.2514/1.a32985.

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4

Brown, B., C. McInnes, and E. Allouis. "Dynamic intelligent autonomous control of an asteroid lander." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 224, no. 8 (2010): 865–79. http://dx.doi.org/10.1243/09544100jaero724.

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Pagone, Michele, Carlo Novara, Paolo Martella, and Claudio Nocerino. "GNC robustness stability verification for an autonomous lander." Aerospace Science and Technology 100 (May 2020): 105831. http://dx.doi.org/10.1016/j.ast.2020.105831.

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B N, Ramya, Khushi S. Sorathia, Prabhava R. Bhat, Jyothish S. Hebbar, and Monisha Bharadwaj M H. "Lunar Lander: Deep Q-Learning Approach for Autonomous Lunar Module Landing." International Journal of Research Publication and Reviews 6, no. 5 (2025): 6488–94. https://doi.org/10.55248/gengpi.6.0525.1788.

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Li, Guoxin, and Shaowei Zhang. "The Hydrodynamic Coefficient Analysis and Motion Control of the Lingyun Moveable Lander." Geofluids 2021 (October 7, 2021): 1–23. http://dx.doi.org/10.1155/2021/3708594.

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A moveable lander has the advantages of low cost and strong controllability and is gradually becoming an effective autonomous ocean observation platform. In this study, the hydrodynamic property of the Lingyun moveable lander, which has completed experiments in the Mariana Trench in 2020, is analyzed with the semiempirical method and computational fluid dynamic (CFD) method. We calculate the inertial hydrodynamic coefficients and viscous hydrodynamic coefficients of the lander. The results show that the CFD can provide the hydrodynamic property for the moveable lander’s design. The dynamic equ

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Ortega, Angel Guillermo, and Afroza Shirin. "Neural Network-Based Descent Control for Landers with Sloshing and Mass Variation: A Cascade and Adaptive PID Strategy." Aerospace 11, no. 12 (2024): 1009. https://doi.org/10.3390/aerospace11121009.

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Autonomous control of lunar landers is essential for successful space missions, where precision and efficiency are crucial. This study presents a novel control strategy that leverages proportional, integral, and derivative (PID) controllers to manage the altitude, attitude, and position of a lunar lander, considering time-varying mass and sloshing behavior. Additionally, neural network models are developed, to approximate the lander’s mass properties as they change during descent. The challenge lies in the significant mass variations due to fuel, oxidizer, and pressurant consumption, which aff

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Ye, Mao, Fei Li, Jianguo Yan, et al. "Rosetta CONSERT Data as a Testbed for In Situ Navigation of Space Probes and Radiosciences in Orbit/Escort Phases for Small Bodies of the Solar System." Remote Sensing 13, no. 18 (2021): 3747. http://dx.doi.org/10.3390/rs13183747.

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Many future space missions to asteroids and comets will implement autonomous or near-autonomous navigation, in order to save costly observation time from Earth tracking stations, improve the security of spacecraft and perform real-time operations. Existing Earth-Spacecraft-Earth tracking modes rely on severely limited Earth tracking station resources, with back-and-forth delays of up to several hours. In this paper, we investigate the use of CONSERT ranging data acquired in direct visibility between the lander Philae and the Rosetta orbiter, in the frame of the ESA space mission to comet 67P/C

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Lin, Rongfu, Weizhong Guo, Xianbao Chen, and Meng Li. "Type synthesis of legged mobile landers with one passive limb using the singularity property." Robotica 36, no. 12 (2018): 1836–56. http://dx.doi.org/10.1017/s0263574718000760.

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SUMMARYDuring extraterrestrial planetary exploration programs, autonomous robots are deployed using a separate immovable lander and a rover. This mode has some limitations. In this paper, a concept of a novel legged robot with one passive limb and singularity property is introduced that has inbuilt features of a lander and a rover. Currently, studies have focused primarily on a performance analysis of the lander without a walking function. However, a systematic type synthesis of the legged mobile lander has not been studied. In this study, a new approach to the type synthesis used for the robo

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Gallo, Natalya D., Kevin Hardy, Nicholas C. Wegner, Ashley Nicoll, Haleigh Yang, and Lisa A. Levin. "Characterizing deepwater oxygen variability and seafloor community responses using a novel autonomous lander." Biogeosciences 17, no. 14 (2020): 3943–60. http://dx.doi.org/10.5194/bg-17-3943-2020.

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Abstract. Studies on the impacts of climate change typically focus on changes to mean conditions. However, animals live in temporally variable environments that give rise to different exposure histories that can potentially affect their sensitivities to climate change. Ocean deoxygenation has been observed in nearshore, upper-slope depths in the Southern California Bight, but how these changes compare to the magnitude of natural O2 variability experienced by seafloor communities at short timescales is largely unknown. We developed a low-cost and spatially flexible approach for studying nearsho

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Yang, Lei, Shengya Zhao, Xiangxin Wang, Peng Shen, and Tongwei Zhang. "Deep-Sea Underwater Cooperative Operation of Manned/Unmanned Submersible and Surface Vehicles for Different Application Scenarios." Journal of Marine Science and Engineering 10, no. 7 (2022): 909. http://dx.doi.org/10.3390/jmse10070909.

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In this paper, we propose three cooperative operational modes of manned and unmanned submersibles for a range of different deep-sea application scenarios. For large-scale exploration, a lander or an unmanned surface vehicle (USV) is paired with one or more autonomous underwater vehicles (AUVs), while the liberated research vessel R/V can transport the manned submersible to another area for diving operations. When manned submersibles and AUVs perform small-scale accurate measurements, the research vessel R/V supports both submersible types for diving operations and has a positioning and communi

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Huang, Xiangyu, Chao Xu, Jinchang Hu, et al. "Powered-descent landing GNC system design and flight results for Tianwen-1 mission." Astrodynamics 6, no. 1 (2022): 3–16. http://dx.doi.org/10.1007/s42064-021-0118-9.

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AbstractThe powered-descent landing (PDL) phase of the Tianwen-1 mission began with composite backshell—parachute (CBP) separation and ended with landing-rover touchdown. The main tasks of this phase were to reduce the velocity of the lander, perform the avoidance maneuver, and guarantee a soft touchdown. The PDL phase overcame many challenges: performing the divert maneuver to avoid collision with the CBP while simultaneously avoiding large-scale hazards; slowing the descent from approximately 95 to 0 m/s; performing the precise hazard-avoidance maneuver; and placing the lander gently and saf

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B, Rithanya. "Robotic Exploration of Europa's Subsurface with Autonomous Underwater Vehicle (AUV): A Comprehensive Mission Concept and Design." Acceleron Aerospace Journal 1, no. 2 (2023): 35–38. http://dx.doi.org/10.61359/11.2106-2308.

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Next-generation space explorers are keen to identify potential bio signatures on other planets and extraterrestrial bodies. So, we have explored Moon and Mars with scientific landers and rovers which transmitted lots of data for exploration beyond earth's orbit. In this scenario, Europa a moon of Jupiter holds a potential site for biological exploration and detection of bio signatures. In addition, spacecraft have identified that the moon is ejecting water vapor into the surface wherein it could hold all the possible elements to support life under the surface. Going forward, orbiters and lande

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Tian, Yang, Meng Yu, and Yingying Zhang. "A novel 3D feature detection and matching approach for autonomous planetary landing mission." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 6 (2018): 2241–49. http://dx.doi.org/10.1177/0954410018774696.

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In an autonomous planetary/asteroid landing mission, landmark recognition is crucial to the success of the navigation system. The failure of feature detection or matching could lead to evident increase of bias in lander pose estimation. To this end, we propose a novel 3D feature detection and matching algorithm in this paper. The spherical harmonic coefficients are adopted to describe a 3D natural feature, and a relative distance set feature description approach is proposed as a supplement feature descriptor to enhance the distinctiveness of 3D feature. Simulation results demonstrate the effec

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Bailey, D. M., A. J. Jamieson, P. M. Bagley, M. A. Collins, and I. G. Priede. "Measurement of in situ oxygen consumption of deep-sea fish using an autonomous lander vehicle." Deep Sea Research Part I: Oceanographic Research Papers 49, no. 8 (2002): 1519–29. http://dx.doi.org/10.1016/s0967-0637(02)00036-5.

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Vladimirova, Tanya, Muhammad Fayyaz, Martin N. Sweeting, and Valentin I. Vitanov. "A novel autonomous low-cost on-board data handling architecture for a pin-point planetary lander." Acta Astronautica 68, no. 7-8 (2011): 811–29. http://dx.doi.org/10.1016/j.actaastro.2010.08.029.

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Xu, Jianwei, Jianzhong Qiao, and Lei Guo. "An enhanced anti-disturbance guidance scheme for powered descent phase of Mars landing under actuator fault." International Journal of Advanced Robotic Systems 15, no. 1 (2018): 172988141875988. http://dx.doi.org/10.1177/1729881418759889.

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As a class of autonomous deep-space exploration robots, Mars lander is simultaneously affected by wind disturbance and actuator fault, which hinders precise landing on Mars. In this article, we propose a composite guidance approach by combining disturbance observer and iterative learning observer together. The Mars wind disturbance is dealt by the disturbance observer providing wind estimation which is rejected through feed-forward channel. Meanwhile, the iterative learning observer is used to estimate the deficiency of actuators. The proposed guidance scheme ensures not only the precision but

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Ortega, Angel Guillermo, Andres Enriquez-Fernandez, Cristina Gonzalez, Angel Flores-Abad, Ahsan Choudhuri, and Afroza Shirin. "Guiding Lunar Landers: Harnessing Neural Networks for Dynamic Flight Control with Adaptive Inertia and Mass Characteristics." Aerospace 11, no. 5 (2024): 370. http://dx.doi.org/10.3390/aerospace11050370.

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The autonomous control of landing procedures can provide the efficiency and precision that are vital for the successful, safe completion of space operations missions. Controlling a lander with this precision is challenging because the propellants, which will be expended during the operations, represent a significant fraction of the lander’s mass. The mass variation of each tank profoundly influences the inertia and mass characteristics as thrust is generated and complicates the precise control of the lander state. This factor is a crucial consideration in our research and methodology. The dyna

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Gorny, Matthias, Guillermo Guzmán, Walter Sielfeld, and Alexis Gacitúa. "First in situ observations of the benthic-demersal fauna on the upper continental slope off Punta Pichalo (19°36'S), northern Chile." Latin American Journal of Aquatic Research 50, no. 4 (2022): 507–18. http://dx.doi.org/10.3856/vol50-issue4-fulltext-2805.

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An autonomous lander equipped with a video camera (dropcam) was used for in situ observations of the bento-demersal macrofauna on the upper continental slope off Punta Pichalo in northern Chile, an area of permanent coastal upwelling processes, located ~70 km north of Iquique. The lander was deployed at nine stations and between 227 and 798 m of depth. According to morphological characteristics, 34 operational taxonomic units (OTUs) were identified to the lowest taxonomic level; 24 belonged to macroinvertebrates and 10 to fishes. Macroinvertebrates comprised 9 OTUs of crustaceans, seven cnidar

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Wang, Donghong, Xingfeng Chen, Jun Liu, et al. "Fast Positioning Model and Systematic Error Calibration of Chang‘E-3 Obstacle Avoidance Lidar for Soft Landing." Sensors 22, no. 19 (2022): 7366. http://dx.doi.org/10.3390/s22197366.

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Chang‘E-3 is China’s first soft landing mission on an extraterrestrial celestial body. The laser Three-Dimensional Imaging (TDI) sensor is one of the key payloads of the Chang‘E-3 lander. Its main task is to provide accurate 3D lunar surface information of the target landing area in real time for the selection of safe landing sites. Here, a simplified positioning model was constructed, to meet the accuracy and processing timeline requirements of the TDI sensor of Chang‘E-3. By analyzing the influence of TDI intrinsic parameters, a permanent outdoor calibration field based on flat plates was sp

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Fones, Gary R., William Davison, Ola Holby, Bo Barker Jorgensen, and Bo Thamdrup. "High-resolution metal gradients measured by in situ DGT/DET deployment in Black Sea sediments using an autonomous benthic lander." Limnology and Oceanography 46, no. 4 (2001): 982–88. http://dx.doi.org/10.4319/lo.2001.46.4.0982.

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23

Cui, Weicheng, Yong Hu, and Wei Guo. "Chinese Journey to the Challenger Deep: The Development and First Phase of Sea Trial of an 11,000-m Rainbowfish ARV." Marine Technology Society Journal 51, no. 3 (2017): 23–35. http://dx.doi.org/10.4031/mtsj.51.3.2.

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AbstractThe remoteness and isolation of hadal zone environments make this region of inner space a particularly fertile field for scientific inquiry. After the successful development of the 7,000-m class deep manned submersible Jiaolong, the Chinese government and scientists have recognized the necessity to develop deep submergence vehicles up to 11,000 m depth. In this paper, a unique Chinese journey to the Challenger Deep is described. The whole project is to construct a movable laboratory that includes a mothership, three full ocean depth landers, a hybrid autonomous and remotely operated ve

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Billings, Gideon, Matthew Walter, Oscar Pizarro, Matthew Johnson-Roberson, and Richard Camilli. "Towards Automated Sample Collection and Return in Extreme Underwater Environments." Field Robotics 2, no. 1 (2022): 1351–85. http://dx.doi.org/10.55417/fr.2022045.

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In this report, we present the system design, operational strategy, and results of coordinated multivehicle field demonstrations of autonomous marine robotic technologies in searchfor- life missions within the Pacific shelf margin of Costa Rica and the Santorini-Kolumbo caldera complex, which serve as analogs to environments that may exist in oceans beyond Earth. This report focuses on the automation of remotely operated vehicle (ROV) manipulator operations for targeted biological sample-collection-and-return from the seafloor. In the context of future extraterrestrial exploration missions to

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Lee, Jae Seong, Sung-Han Kim, Ju-Wook Baek, et al. "Organic Carbon Oxidation in the Sediment of the Ulleung Basin in the East Sea." Journal of Marine Science and Engineering 10, no. 5 (2022): 694. http://dx.doi.org/10.3390/jmse10050694.

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We characterized the biogeochemical organic carbon (Corg) cycles in the surface sediment layer of the Ulleung Basin (UB) of the East Sea. The total oxygen uptake (TOU) rate and the diffusive oxygen uptake (DOU) rate of the sediment were measured using an autonomous in situ benthic lander equipped with a benthic chamber (KIOST BelcII) and a microprofiler (KIOST BelpII). The TOU rate was in the range of 1.51 to 1.93 mmol O2 m−2 d−1, about double the DOU rate. The high TOU/DOU ratio implies that the benthic biological activity in the upper sediment layer is one of the important factors controllin

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Kubovčík, Martin, Iveta Dirgová Luptáková, and Jiří Pospíchal. "Signal Novelty Detection as an Intrinsic Reward for Robotics." Sensors 23, no. 8 (2023): 3985. http://dx.doi.org/10.3390/s23083985.

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In advanced robot control, reinforcement learning is a common technique used to transform sensor data into signals for actuators, based on feedback from the robot’s environment. However, the feedback or reward is typically sparse, as it is provided mainly after the task’s completion or failure, leading to slow convergence. Additional intrinsic rewards based on the state visitation frequency can provide more feedback. In this study, an Autoencoder deep learning neural network was utilized as novelty detection for intrinsic rewards to guide the search process through a state space. The neural ne

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Barclay, David R. "Passive acoustic exploration of the ocean." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A133. http://dx.doi.org/10.1121/10.0018410.

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Encoded in the spectral density, spatial variability, and directionality (spatial coherence) of the ambient sound field is information on the generation mechanisms of sound and the properties of the ocean propagation environment and its boundaries. Through field and observatory measurements, and analytical and computational models of the underwater sound field, a research program has been pursued that asks, “What can we learn about the ocean by listening?” Large acoustic data sets have been exploited to develop an estimate of the effective source level per unit area of surface generated noise.

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Al-Hadiqi, Abdul Karim, and Ahmed Al-Sudani. "The Problem of the Distribution of Legislative Jurisdiction between the Federal Parliament and Regional Parliaments: A Comparative Study of the Federal Constitutions of the United States, Canada, Germany, and Spain." Journal of Legal and Political Studies 13, Special Issue 2025 (2025): 493–506. https://doi.org/10.17656/jlps.10306.

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This research paper addresses the problem of the distribution of legislative competence in the federal state between the federal parliament and the regional parliaments in the United States of America, Canada, Germany and Spain. To deconstruct this problem, we first addressed the concepts of the federal state, legislation, the federal parliament and the regional parliaments. After that, we reviewed - within the framework of a comparative study - the legislative competence that the federal parliaments of these countries have over the regional parliaments, highlighting the similarities and diffe

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Devouassoux, Y., M. Drieux, S. Reynaud, G. Gelly, E. Ferreira, and A. Muller. "AUTONOMOUS HAZARD AVOIDANCE FOR PLANETARY LANDERS." IFAC Proceedings Volumes 40, no. 15 (2007): 174–79. http://dx.doi.org/10.3182/20070903-3-fr-2921.00032.

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Kalita, Himangshu, and Jekan Thangavelautham. "Strategies for Deploying a Sensor Network to Explore Planetary Lava Tubes." Sensors 21, no. 18 (2021): 6203. http://dx.doi.org/10.3390/s21186203.

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Recently discovered pits on the surface of the Moon and Mars are theorized to be remnants of lava tubes, and their interior may be in pristine condition. Current landers and rovers are unable to access these areas of high interest. However, multiple small, low-cost robots that can utilize unconventional mobility through ballistic hopping can work as a team to explore these environments. In this work, we propose strategies for exploring these newly discovered Lunar and Martian pits with the help of a mother-daughter architecture for exploration. In this architecture, a highly capable rover or l

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Tamami, Niam, Bambang Sumantri, and Prima Kristalina. "Local positioning system for autonomous vertical take-off and landing using ultra-wide band measurement ranging system." Journal of Mechatronics, Electrical Power, and Vehicular Technology 12, no. 1 (2021): 18–27. http://dx.doi.org/10.14203/j.mev.2021.v12.18-27.

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An autonomous vertical take-off and landing (VTOL) must be supported with an accurate positioning system, especially for autonomous take-off, landing, and other tasks in small area. This paper presents a novel method of small local outdoor positioning system for localizing the area of dropping and landing of autonomous VTOL by utilizing the low-cost precision ultra-wide band (UWB) ranging system. We compared symmetrical single sided-two way ranging (SSS-TWR), symmetrical double sided-two way ranging (SDS-TWR), and asymmetrical double sided-two way ranging (ADS-TWR) methods to get precision ran

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Dremliuga, Roman, and Mohd Hazmi bin Mohd Rusli. "The Development of the Legal Framework for Autonomous Shipping: Lessons Learned from a Regulation for a Driverless Car." Journal of Politics and Law 13, no. 3 (2020): 295. http://dx.doi.org/10.5539/jpl.v13n3p295.

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This article focuses on the regulation of maritime autonomous surface vessels from the perspective of international law of the sea. The article discusses on the possibility of developing a legal framework to regulate autonomous maritime navigation based on laws and regulation of autonomous driving of landed vehicles. The authors opine that existing legal framework does not conform to the goal of regulation of autonomous navigation. However, the regulation of autonomous car testing and exploitation could be imitated to design a new legal framework for autonomous shipping. Despite the divergent

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Jamieson, Alan J., Toyonobu Fujii, Martin Solan, and Imants G. Priede. "HADEEP: Free-Falling Landers to the Deepest Places on Earth." Marine Technology Society Journal 43, no. 5 (2009): 151–60. http://dx.doi.org/10.4031/mtsj.43.5.17.

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AbstractThe hadal zone, comprising mostly deep trenches that plummet to nearly 11 km deep, represents the largest poorly understood habitat on Earth. This knowledge dearth has been technology induced rather than of scientific interest. The U.K.‐Japan collaborative project Hadal Environment and Educational Program (HADEEP) is one venture where scientists and technologists have been working to fill this knowledge gap, particularly from a biological perspective. With limited funds and even more limited time, two 12,000-m autonomous free-fall baited imaging landers, known as hadal landers, were co

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Patel, Prachi. "Turn left at transquility base: Astrobotic's autonomous navigation will help lunar landers, rovers, and drones find their way." IEEE Spectrum 56, no. 7 (2019): 48–51. http://dx.doi.org/10.1109/mspec.2019.8747314.

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Schneider, Katharina. "Matrilineal Kinship at Sea in Bougainville, Papua New Guinea." Jurnal Humaniora 30, no. 3 (2018): 223. http://dx.doi.org/10.22146/jh.39083.

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This paper explores matrilineal kinship in the Buka area, in the Autonomous Region of Bougainville, from the perspective of saltwater people on Pororan Island. In Bougainville and elsewhere in Melanesia, anthropological research has highlighted the importance of joint work in the gardens, of sharing and exchanging garden food, and of negotiations of access to land for kinship and relatedness in the region. Where does this leave saltwater people, who often have only small areas of land of their own, take little interest in gardening and depend on traded sweet potatoes or imported rice for meeti

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Schneider, Katharina. "Matrilineal Kinship at Sea in Bougainville, Papua New Guinea." Jurnal Humaniora 30, no. 3 (2018): 223. http://dx.doi.org/10.22146/jh.v30i3.39083.

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This paper explores matrilineal kinship in the Buka area, in the Autonomous Region of Bougainville, from the perspective of saltwater people on Pororan Island. In Bougainville and elsewhere in Melanesia, anthropological research has highlighted the importance of joint work in the gardens, of sharing and exchanging garden food, and of negotiations of access to land for kinship and relatedness in the region. Where does this leave saltwater people, who often have only small areas of land of their own, take little interest in gardening and depend on traded sweet potatoes or imported rice for meeti

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Cobanovic, Katarina, and Zivojin Petrovic. "Agricultural population of the autonomous province of Vojvodina and rural development." Zbornik Matice srpske za drustvene nauke, no. 121 (2006): 333–40. http://dx.doi.org/10.2298/zmsdn0621333c.

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The development of agriculture depends on the structural changes of the total population, as well as on the development of agriculture in general. An intensive process of de-agrarization in our country also implied the change of rural structure, observed at the level of settlement and at the level of landed-estates, that is households and others. Significant changes in the rural structures of Vojvodina are also a result of the intensive changes caused by the processes of transition. The centre of the dynamic changes in the rural areas of Vojvodina lies in the individual agricultural estates, a

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Tomizawa, Tetsuo, and Yuya Shibata. "Oncoming Human Avoidance for Autonomous Mobile Robot Based on Gait Characteristics." Journal of Robotics and Mechatronics 28, no. 4 (2016): 500–507. http://dx.doi.org/10.20965/jrm.2016.p0500.

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[abstFig src='/00280004/08.jpg' width='300' text='Overview of oncoming human avoidance' ] When two pedestrians pass one another on busy intersections or pedestrian crossings, they may try to avoid each other by moving in the same direction. Such behavior becomes a factor hindering a smooth walking. When robots will come to be used in our immediate environment in the future, similar situations are likely to occur. The objective of this study is to determine the appropriate avoidance action (direction and timing) that a robot should take in order to minimize the risk of coming face to face with

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Kaneko, Alex M., and Kenjiro Yamamoto. "Road Lane Detection and Lane Type Classification for Autonomous Driving : Method Based on Chronologically Detected Road Feature Parameters." Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM 2015.6 (2015): 58–59. http://dx.doi.org/10.1299/jsmeicam.2015.6.58.

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Lee, Donghee, Wooryong Park, and Woochul Nam. "Autonomous Landing of Micro Unmanned Aerial Vehicles with Landing-Assistive Platform and Robust Spherical Object Detection." Applied Sciences 11, no. 18 (2021): 8555. http://dx.doi.org/10.3390/app11188555.

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Autonomous unmanned aerial vehicle (UAV) landing can be useful in multiple applications. Precise landing is a difficult task because of the significant navigation errors of the global positioning system (GPS). To overcome these errors and to realize precise landing control, various sensors have been installed on UAVs. However, this approach can be challenging for micro UAVs (MAVs) because strong thrust forces are required to carry multiple sensors. In this study, a new autonomous MAV landing system is proposed, in which a landing platform actively assists vehicle landing. In addition to the vi

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Martínez-Escauriaza, Roi, Francesca Gizzi, Lídia Gouveia, Nuno Gouveia, and Margarida Hermida. "Small-scale fisheries in Madeira: recreational vs artisanal fisheries." Scientia Marina 85, no. 4 (2021): 257–70. http://dx.doi.org/10.3989/scimar.05180.022.

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Small-scale recreational and artisanal fisheries are popular activities in the Autonomous Region of Madeira, and to date no information is available on their impact on regional coastal ecosystems. Through fishers’ surveys and official registers of fish landings, we described and characterized these fisheries in Madeira, comparing artisanal and recreational fisheries. In 2017, artisanal boats landed 91 species in fishing ports, while recreational catches landed 58 species. The most frequent catches were Dentex gibbosus, Phycis phycis and Pagrus pagrus for artisanal fishery and P. pagrus, Serran

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Koparan, Cengiz, Ali Bulent Koc, Calvin Sawyer, and Charles Privette. "Temperature Profiling of Waterbodies with a UAV-Integrated Sensor Subsystem." Drones 4, no. 3 (2020): 35. http://dx.doi.org/10.3390/drones4030035.

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Evaluation of thermal stratification and systematic monitoring of water temperature are required for lake management. Water temperature profiling requires temperature measurements through a water column to assess the level of thermal stratification which impacts oxygen content, microbial growth, and distribution of fish. The objective of this research was to develop and assess the functions of a water temperature profiling system mounted on a multirotor unmanned aerial vehicle (UAV). The buoyancy apparatus mounted on the UAV allowed vertical takeoff and landing on the water surface for in situ

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Vivek Chakaravarthi, G. C., B. R. Sathish Kumar, and R. P. Ramesh. "MAB-I (Mobility Assistant for Blind)." Applied Mechanics and Materials 446-447 (November 2013): 1178–82. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.1178.

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The anxiety of the humans to eradicate the difficulties of people landed up in the technological advancements. But the present scenario in India shows that navigation of blind people is a difficult task. The blind people have been using sticks and dogs for their navigation for the past decades. To make them autonomous in their mobility we put forward our idea over the existence of voice commands (IVRS).Two issues have been discussed in this paper. (i)Their navigation has been instructed by the prodigious vibroactuators which could make their mobility in a glib way [1]. The vibrations sensed th

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Weatherall, DJ. "2005 Runme Shaw Memorial Lecture: Training Doctors for the 21st Century – A Global Perspective." Annals of the Academy of Medicine, Singapore 34, no. 11 (2005): 666–70. http://dx.doi.org/10.47102/annals-acadmedsg.v34n11p666.

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Over the last 200 years, Western medicine has gradually spread across the globe, and has either been replaced or become integrated with traditional systems of medical care. Much of this expansion occurred during the colonial times. For example, Western medicine was introduced to Singapore by Thomas Prendergast, a surgeon who accompanied Sir Stamford Raffles when he landed on the island in 1819. In 1905, the Straits and Federated Malay States Government Medical School was founded in Singapore. In 1912, the School received support from the King Edward VII Memorial Fund and in 1921, it became the

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Karmakar, Riya, Bhardwaj Shastri, Ubol Choomjinda, Arvind Mukundan, and Hsiang-Chen Wang. "LULAD (LUnar LAva tube Discoverer) Instrument for NASA’s Commercial Lunar Payload Services (CLPS) Program." Journal of Physics: Conference Series 2784, no. 1 (2024): 012010. http://dx.doi.org/10.1088/1742-6596/2784/1/012010.

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Abstract NASA’s latest lunar exploration program is Artemis. In-situ Resource Utilization (ISRU) will become more important as human space travel moves toward a lunar presence. CLPS helps the Artemis Program develop and use compact autonomous landers and rovers. A series of lunar micro-rovers will be launched in the coming years to collect data and conduct scientific research on the moon. Subterranean lava tubes on celestial bodies are promising habitats for human expansion beyond Earth. Due to its lack of atmosphere, the moon is vulnerable to meteoroid impacts and cosmic and solar particle ra

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Kinakpefan, Michel TRAORE, Mathieu BAKARY Nambahigué, and Timité TAMBOURA Awa. "Assessment of soil erosion in the Autonomous District of Abidjan, Côte d'Ivoire." International Journal of Environmental & Agriculture Research 9, no. 4 (2023): 40–55. https://doi.org/10.5281/zenodo.7878885.

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<strong>Abstract</strong><strong>—</strong> In a context of global changes and climatic uncertainties, this study poses the problem of the occurrence of water erosion induced by natural constraints and uncontrolled and speculative anthropisation of soils in the Autonomous District of Abidjan. The aim is to propose a decision-making tool that identifies the areas of the Autonomous District of Abidjan (ADA) most prone to soil loss and the risk of water erosion. More specifically, the aim is to evaluate, prioritise and map the levels of susceptibility to the occurrence of this hydroclimatic

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Jiang, Zhe, Bin Lu, Biao Wang, et al. "A Prototype Design and Sea Trials of an 11,000 m Autonomous and Remotely-Operated Vehicle Dream Chaser." Journal of Marine Science and Engineering 10, no. 6 (2022): 812. http://dx.doi.org/10.3390/jmse10060812.

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To better study the biology and ecology of hadal trenches for marine scientists, the Hadal Science and Technology Research Center (HAST) of Shanghai Ocean University proposed to construct a movable laboratory that includes a mothership, several full-ocean-depth (FOD) submersibles, and FOD landers to obtain samples in the hadal trenches. Among these vehicles, the project of an FOD autonomous and remotely-operated vehicle (ARV) named “Dream Chaser” was started in July 2018. The ARV could work in both remotely-operated and autonomous-operated modes, and serves large-range underwater observation,

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Fertig, Georg. "Beyond the Niche Hypothesis. Property, Marriage, and the Onset of Familial Reproduction in Rural Northwest Germany, 1820–1866." Historical Life Course Studies 8 (December 20, 2019): 73–95. http://dx.doi.org/10.51964/hlcs9308.

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The study applies event history analysis to nominative data of three contrasting localities to explore the relationship between property transmission and family formation. This allows testing several hypotheses concerning demographic regulation and family dynamics in preindustrial Europe, including but not limited to the niche hypothesis. The analysis finds evidence for four mechanisms of family formation. Firstly, the death of one or both parents promoted marriage of their children. For farmholders, niche inheritance was an important contribution; but parental death also leads to an increase

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Zhu, Jieming. "Making urbanisation compact and equal: Integrating rural villages into urban communities in Kunshan, China." Urban Studies 54, no. 10 (2016): 2268–84. http://dx.doi.org/10.1177/0042098016643455.

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China’s rapid economic development has urbanised a great number of rural villagers since the late 1970s. One of the significant challenges is that urbanisation entails incorporating autonomous villages into integrative cities. Village-led rural industrialisation safeguards villagers’ interests, but it gives rise to a fragmented industrial landscape and piecemeal farmland in the context of high-density small-area village settlements. Suboptimal land utilisation consumes more land resources than necessary to meet urbanisation needs and thus deteriorates environmental integrity. Townships have be

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Byun, Woohyun, Soobin Huh, Hyeokjae Jang, et al. "Vector Field-Based Robust Quadrotor Landing on a Moving Ground Platform." Aerospace 12, no. 7 (2025): 590. https://doi.org/10.3390/aerospace12070590.

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The autonomous landing of unmanned aerial vehicles (UAVs) on moving platforms has potential applications across various domains. However, robust landing remains challenging because the detection reliability of UAVs decreases when the UAV is close to a moving platform. To address this issue, this paper proposes a novel landing strategy that ensures a high detection rate. First, a robust detectable region was established by considering the sensing range and maneuverability limitations of the UAV. Second, a vector field was designed to guide the UAV to the moving platform while remaining in a rob

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