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第三十四届中国控制会议

作者： XU Weimin ZHENG Xiang LIU Yuqiang ZHANG Mengjie LUO Yuyang Key Laboratory of Maritime Technology and Control Engineering Ministry of Communications Shanghai Maritime University

ISBN: (纸本)9781467374439

This paper analyzes the dynamics of overhead cranes suffering from uncertain disturbances, and then proposes a novel adaptive dynamic integral sliding mode control law for the underactuated overhead cranes with uncertainties. This method solve the problem of the tradeoff between the steady-state error and the chattering effect by employing the dynamic sliding mode technique, moreover, the self-tuning laws for the switching controller are developed to eliminate unknown disturbances exerted on the overhead crane systems. None of the prior information about the upper bound of uncertainties is needed in the sliding mode controller design. The global stability of the proposed controller is proven. Simulation study shows the good performance of the suggested method.

关键词： overhead crane,dynamic integral sliding mode,switching gain,adaptive control,uncertainties

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Exploring immunomodulatory peptides from monkfish (Lophius litulon) roe: Identification, in vitro activity, and molecular docking analysis

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International Immunopharmacology 2025年 156卷

作者： Xu, Yezhu Yi, Wenting Zhao, Qiaoling Zhao, Rui Jiang, Shuoqi Tang, Yunping Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products School of Food and Pharmacy Zhejiang Ocean University Zhoushan 316022 China Zhoushan Institute for Food and Drug Control Zhoushan 316000 China Key Laboratory of Industrial Biotechnology Ministry of Education School of Biotechnology Jiangnan University 1800 Li-Hu Road Bin-Hu District Jiangsu Wuxi China

To facilitate the high-value utilization of monkfish (Lophius litulon) roe, the immunomodulatory impact of its active peptides was thoroughly investigated. The sequence of immunomodulatory peptides was successfully identified by utilizing low molecular weight derived from monkfish roe (MRP) and employing LC-MS/MS. The efficacy of these peptides on RAW 264.7 cells was evaluated through measurements of cellular proliferation rates, phagocytic activity, nitric oxide (NO) levels, and cytokine secretion. Molecular docking techniques were employed to theoretically analyze the interactions to further elucidate the underlying immunomodulatory mechanisms. MRP was identified using LC-MS/MS, leading to the eventual screening of four immunomodulatory peptides (FRF, LWR, LFP, and PLW). These oligopeptides exhibited robust immunomodulatory properties, significantly boosting the proliferation and phagocytic functions of RAW 264.7 cells, along with markedly enhancing the secretion of NO, interleukin-1 beta (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor (TNF-α). The molecular docking analysis revealed that these four peptides exhibited strong binding affinities with toll-like receptor 2 (TLR2) and TLR4, thereby exerting their immunomodulatory effects. In summary, the four peptides (FRF, LWR, LFP, and PLW) identified from monkfish roe exhibit promising immunomodulatory effects and have potential as food-derived immunomodulators. © 2025 Elsevier B.V.

关键词： Identification Immunomodulatory peptide Molecular docking Monkfish (Lophius litulon) roe RAW 264.7 cells

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A development of degaussing current controller based on magnetometer

A development of degaussing current controller based on magn...

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作者： Chang, Baolin Shen, Aidi Zhang, Songyong Key Laboratory of Marine Technology and Control Engineering Ministry of Communications Shanghai Maritime University Shanghai 200135 China

ISBN: (纸本)9783642256578

Vessel's degaussing system plays an important role in improving the performance of the magnetic protection. However, during ship sailing, magnetometer will be influenced by a variety of interfering magnetic fields, which will seriously affect the accuracy of degaussing current control. To solve this problem, this paper proposes a degaussing current controller based on magnetometer. With analyzing and processing the real-time data of the magnetic field, the instrument eliminates the impact of the interfering magnetic fields on the degaussing current control. The result of practical application shows that the instrument can detect the continuously changing magnetic fields and accurately control the degaussing current to achieve a good degaussing performance. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Degaussing

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Proactive Content Delivery for Vehicles over Cellular Networks:the Fundamental Benefits of Computing and Caching

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China communications 2018年第7期15卷 88-97页

作者： Jiping Jiao Xuemin Hong Jianghong Shi Department of Communications Engineering School of Information Science and Technology Xiamen University Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education of China Xiamen University

The emergence of self-driving technologies implies that a future vehicle will likely become an entertainment center that demands personalized multimedia contents with very high quality. The surge of vehicular content demand brings significant challenges for the fifth generation(5G) cellular communication network. To cope with the challenge of massive content delivery, previous studies suggested that the 5G mobile edge network should be designed to integrate communication, computing, and cache(3C) resources to enable advanced functionalities such as proactive content delivery and in-network caching. However, the fundamental benefits achievable by computing and caching in mobile communications networks are not yet properly understood. This paper proposes a novel theoretical framework to characterize the tradeoff among computing, cache, and communication resources required by the mobile edge network to fulfill the task of content delivery. Analytical and numerical results are obtained to characterize the 3C resource tradeoff curve. These results reveal key insights into the fundamental benefits of computing and caching in vehicular mobile content delivery networks.

关键词： content delivery mobile edge network vehicular network

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Occurrence and ecological risk of microplastics in different mariculture feeds

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Water Cycle 2025年 6卷 306-318页

作者： Ge, Anqi Liu, Liuqingqing Xu, Jialu Sun, Cuizhu Yuan, Zixi Wang, Rongyuan Zheng, Hao Luo, Xianxiang Chen, Lingyun Li, Fengmin Institute of Coastal Environmental Pollution Control College of Environmental Science and Engineering Sanya Oceanographic Institution Ministry of Education Key Laboratory of Marine Environment and Ecology Ocean University of China Qingdao266100 China MSc in Management University of York YorkYO10 5DD United Kingdom Marine Ecology and Environmental Science Laboratory Qingdao Marine Science and Technology Center Qingdao266071 China North China Sea Environmental Monitoring Center State Oceanic Administration Qingdao266033 China Faculty of Agricultural Life and Environmental Science University of Alberta EdmontonABT6G 2P5 Canada National Joint Research Center for Ecological Conservation and High Quality Development of the Yellow River Basin Beijing100012 China

The pollution of microplastics (MPs) in mariculture animals and its risk to human health remain a growing concern. However, although much attention has been paid to the release of MPs in mariculture facilities, few reports can be found on the occurrence of MPs in mariculture feeds consumed by mariculture animals. Therefore, the present study investigated the occurrence patterns of MPs in 23 types of mariculture feeds for different species at different life history stages, and the related ecological risks of these MPs were also assessed. MPs were prevalent with an average abundance of 5491 ± 2712 particles kg−1 in all the mariculture feeds. Notably, the abundance of MPs in Stichopus japonicus (SJ) feeds was the highest, especially in adult stage feeds of SJ (19683 ± 6789 particles kg−1). The majority of MPs in mariculture feeds were 20–500 μm in size (81.4%), shaped as fragments (66.2%) and fibers (23.5%), mostly transparent (58.5%) and yellow (18.3%) in color, and the polymer types were dominated by polycaprolactone (PCL), polypropylene (PP), polyethylene (PE), and cellophane (CP), which together accounted for 61.6%. More importantly, the risk index (H) indicated that MPs in Sebastes schlegelii feeds had high risk (H: 100–1000), while Litopenaeus vannamei, Penaeus monodon, Stichopus japonicus, and Larimichthys crocea feeds had medium risk (H: 10–100). These findings offer valuable information about MP contamination in mariculture feeds and establish a theoretical foundation for the safe production and use of mariculture feeds, contributing to the development of a risk assessment framework for MPs in mariculture feeds. © 2025 The Authors

关键词： Invertebrates

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Experimental investigation of frequency characteristics of underwater wireless power transfer

Experimental investigation of frequency characteristics of u...

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2018 IEEE MTT-S International Wireless Symposium, IWS 2018

作者： Niu, Wangqiang Gu, Wei Chu, Jianxin Key Laboratory of Marine Technology and Control Engineering Ministry of Communications PRC Shanghai Maritime University Shanghai201306 China

ISBN: (纸本)9781538663462

Frequency characteristics of underwater wireless power transfer systems centered at 470 kHz are investigated experimentally. Experimental results show the V-type frequency splitting pattern disappears in seawater and freshwater. When the coil distance is bigger than the 22.5 cm coil diameter (the midrange conception), the eddy current behaves like a relay coil, the load voltage is stable at 6 V in seawater and at 5 V in fresh-water and insensitive to the coil distance while it is decayed exponentially to 0.2 V in air. © 2018 IEEE.

关键词： Energy transfer

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Multi-Robot Task Allocation Using Multimodal Multi-Objective Evolutionary Algorithm Based on Deep Reinforcement Learning

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Journal of Shanghai Jiaotong university(Science) 2024年第3期29卷 377-387页

作者：苗镇华黄文焘张依恋范勤勤 Logistics Research Center Shanghai Maritime UniversityShanghai 201306China Key Laboratory of Control of Power Transmission and Conversion of Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Marine Technology and Control Engineering of Ministry of Communications Shanghai Maritime UniversityShanghai 201306China

The overall performance of multi-robot collaborative systems is significantly affected by the multi-robot task *** improve the effectiveness,robustness,and safety of multi-robot collaborative systems,a multimodal multi-objective evolutionary algorithm based on deep reinforcement learning is proposed in this *** improved multimodal multi-objective evolutionary algorithm is used to solve multi-robot task allo-cation ***,a deep reinforcement learning strategy is used in the last generation to provide a high-quality path for each assigned robot via an end-to-end *** with three popular multimodal multi-objective evolutionary algorithms on three different scenarios of multi-robot task allocation problems are carried out to verify the performance of the proposed *** experimental test results show that the proposed algorithm can generate sufficient equivalent schemes to improve the availability and robustness of multi-robot collaborative systems in uncertain environments,and also produce the best scheme to improve the overall task execution efficiency of multi-robot collaborative systems.

关键词： multi-robot task allocation multi-robot cooperation path planning multimodal multi-objective evo-lutionary algorithm deep reinforcement learning

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A review of nanotechnology in food industry with implication for viable outlook and safety issues

Hybrid Advances

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Hybrid Advances 2025年 10卷

作者： Ahmad, Khurshid Ahmad, Rasheed Faizan, Muhammad Farah Ali, Farhad Yousaf, Malik Muhammad Ali, Faraz Niaz, Waqas Khan, Tehsin Ullah Khan, Sajad Ali, Sajjad Ahmed, Ishfaq Hassan, Hamza State Key Laboratory of Marine Food Processing & Safety Control College of Food Science and Engineering Ocean University of China No.1299 Sansha Road Qingdao Shandong Province 266404 China School of Light Industry and Chemical Engineering Dalian Polytechnic University Dalian 116034 China Department of Biological Sciences International Islamic University Islamabad 44000 Pakistan Collage of Fisheries Ocean University of China Qingdao Shandong Province 266003 China Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education Ocean University of China Qingdao 266100 China College of Marine Life Sciences Ocean University of China Qingdao Shandong Province 266003 China Haide College Ocean University of China Laoshan Campus Shandong Province Qingdao 266100 China

The main goal of novel food packaging technologies beside maintaining food quality, product integrity, and consumer safety is to address environmental concerns. A promising approach to achieving this is the incorporation of eco-friendly nanomaterials in food packaging. Numerous studies have focused on enhancing nanomaterial-based food packaging properties to create optimal conditions for food preservation. This studies, focuses by the recent advancements in nanotechnology and its potential to overcome challenges in food packaging are briefly emphasized. This article summarizes the sources and functionality of food-related nanomaterials, categorizing them into organic and inorganic origins. The article also explores the potential benefits of using nanotechnology in food packaging, as well as the related safety concerns. Furthermore, the article highlights the recent advancement in nanotechnology for food industrial applications which is supported by a bibliometric analysis (2014–2024) using the PubMed database. Moreover, this study explores into the advancements and challenges of nano-scale materials in food packaging, emphasizing cutting-edge research and its transformative impact on the food industry. © 2025 The Authors

关键词： Bibliometric Food industry Food packaging Food safety Nanotechnology

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Undrained shear strength evaluation for hydrate-bearing sediment overlying strata in the Shenhu area, northern South China Sea

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Acta Oceanologica Sinica 2019年第3期38卷 114-123页

作者： Yanlong Li Gaowei Hu Nengyou Wu Changling Liu Qiang Chen Chen'an Li Key Laboratory of Gas Hydrate Ministry of Natural Resources Laboratory for Marine Mineral Resource Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao Institute of Marine Geology China Geological Survey College of Information and Control Engineering China University of Petroleum

The undrained shear strength of shallow strata is a critical parameter for safety design in deep-water *** situ piezocone penetration tests(CPTU) and laboratory experiments are performed at Site W18-19 in the Shenhu area, northern South China Sea, where China's first marine hydrate exploitation operation is due to be located. The validation of the undrained shear strength prediction model based on CPTU parameters. Different laboratory tests, including pocket penetrometer, torvane, miniature vane and unconsolidated undrained triaxial tests, are employed to solve empirical cone coefficients by statistical and mathematical methods. Finally, an optimized model is proposed to describe the longitudinal distribution of undrained shear strength in calcareous clay strata in the Shenhu area. Research results reveal that average empirical cone coefficients based on total cone resistance, effective resistance, and excess-pore pressure are 13.8, 4.2 and 14.4, respectively. The undrained shear strength prediction model shows a good fit with the laboratory results only within specific intervals based on their compaction degree and gas-bearing conditions. The optimized prediction model in piecewise function format can be used to describe the longitudinal distribution of the undrained shear strength for calcareous clay within all depth intervals from the mud-line to the upper boundary of hydrate-bearing sediments(HBS). The optimized prediction result indicates that the effective cone resistance model is suitable for very soft to firm calcareous clays,the excess-pore pressure model can depict the undrained shear strength for firm to very stiff but gas-free clays,while the total cone resistance model is advantageous for evaluating the undrained shear strength for very stiff and gassy clays. The optimized model in piecewise function format can considerably improve the adaptability of empirical models for calcareous clay in the Shenhu area. These results are significant for sa

关键词： piezocone penetration test hydrate exploitation test undrained shear strength calcareous clay Shenhu area South China Sea

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Study of on-line detection of voltage transient disturbance based on DSP and wavelet

Study of on-line detection of voltage transient disturbance ...

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2014 International Conference on Mechatronics and Mechanical engineering, ICMME 2014

作者： Huang, Xi-Xia Wang, Fei Hou, Cheng Zhang, Bing Key Laboratory of Marine Technology and Control Engineering Ministry of Communications PRC Scientific Research Academy Shanghai Maritime University Shanghai China

ISBN: (纸本)9783038352921

In this paper, a set of voltage disturbance detection device based on DSP2812 was designed and a method of transient voltage disturbance detection based on DSP and Wavelet Transform was studied. The device collects electrical signal through a Hall sensor and the parallel A/D converter and regards TMS320F2812, a kind of high-performance digital signal processor (DSP), as a core data processing unit. Discrete Wavelet Transform (DWT) algorithm on DSP board was carried out to detect transient voltage disturbance. Software modules including the main program module, A/D module, interrupt module, communication module and so on was designed. The DWT algorithm on DSP board which could detect transient voltage disturbance on line was carried out based on the strong operation ability of DSP and the high effectiveness of DWT algorithm. This device can simultaneously realize power acquisition and voltage disturbance analysis in real-time. Contrast tests show that the device is of high-precision, of high-data-processing-speed and has a capability of voltage disturbance detecting in real-time. © (2014) Trans Tech Publications, Switzerland.

关键词： MATLAB

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