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Jiqing Du, Dan Zhou, Wei Wang and Sachiyo Arai
The Deep Reinforcement Learning (DRL) algorithm is an optimal control method with generalization capacity for complex nonlinear coupled systems. However, the DRL agent maintains control command saturation and response overshoot to achieve the fastest res...
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Jiqing Du, Dan Zhou and Sachiyo Arai
This study introduces a hybrid control structure called Improved Interfered Fluid Dynamic System Nonlinear Model Predictive Control (IIFDS-NMPC) for the path planning and trajectory tracking of autonomous underwater vehicles (AUVs). The system consists o...
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Muhammad Bilal, Habib Ul Hassan, Madiha Taj, Naseem Rafiq, Ghulam Nabi, Asif Ali, Karim Gabol, Muhammad Ishaq Ali Shah, Rizwana Abdul Ghaffar, Muhammad Sohail and Takaomi Arai
The issue of microplastic (MP) pollution is one of the most pressing environmental problems faced today and for the future. Plastics are ubiquitous due to their exponential use and mismanagement, resulting in the accumulation of fragments across the worl...
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Bithy Khatun, Md. Abu Sayed Jewel, Md. Ayenuddin Haque, Sumaiya Akter, Mohammad Belal Hossain, Mohammed Fahad Albeshr and Takaomi Arai
Macro-benthos is commonly considered an indicator for evaluating the health of an aquatic ecosystem. Earlier research from sub-tropical mangrove estuaries, however, has primarily relied on conventional taxonomic methods to determine the pattern of macro-...
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Apichon Witayangkurn, Ayumi Arai and Ryosuke Shibasaki
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Md Shamsuddin, Mohammad Belal Hossain, Moshiur Rahman, Mst Salamun Kawla, Md. Farhan Tazim, Mohammed Fahad Albeshr and Takaomi Arai
Earlier research has mostly focused on the impacts of stocking density on fish growth, yield, and survival rate; however, knowledge of the effects of stocking larger-sized fish, particularly Nile Tilapia, is lacking. This type of research is critically i...
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Hiroshi Arai and Harumi Haraguchi
We proposed the method that translates the two-dimensional CSP for minimizing the number of cuts to the Ising model. After that, we conducted computer experiments of the proposed model using the benchmark problem. From the above, the following results ar...
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Toshio Yamazu, Koshi Haraguchi, Takahiko Inoue and Kohsaku Arai
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Hideaki Goto, Kohsaku Arai and Taichi Sato
Anaglyphs produced using a digital elevation model (DEM) are effective to identify the characteristic tectono–geomorphic features. The objective of this study is to reinvestigate the tectonic geomorphology and to present novel tectonic maps of the ...
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Minoru Yamada and Hidenori Arai
Preventing frailty and its adverse health outcomes is crucial in countries with a large elderly population, such as Japan. Since the long-term care insurance (LTCI) system was launched, the number of certified older adults with LTCI service requirement h...
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