A5100693330- Maritime Navigation and Safety
- Ship Hydrodynamics and Maneuverability
- Maritime Ports and Logistics
- Soil Carbon and Nitrogen Dynamics
- Maritime Security and History
- Structural Integrity and Reliability Analysis
- Infrared Target Detection Methodologies
- Soil Management and Crop Yield
- Composting and Vermicomposting Techniques
- Maritime Transport Emissions and Efficiency
- Crop Yield and Soil Fertility
- Polymer-Based Agricultural Enhancements
- Big Data and Business Intelligence
- Optical Systems and Laser Technology
- Bee Products Chemical Analysis
- Image and Object Detection Techniques
- Spectroscopy Techniques in Biomedical and Chemical Research
- Iron and Steelmaking Processes
- Optimal Experimental Design Methods
- Scheduling and Timetabling Solutions
- Radar Systems and Signal Processing
- Model Reduction and Neural Networks
- Advanced Vision and Imaging
- Technology and Security Systems
- Underwater Vehicles and Communication Systems
Dalian Maritime University
2017-2024
China Agricultural University
2022-2023
East China University of Science and Technology
2023
Chalmers University of Technology
2022-2023
Ministry of Water Resources of the People's Republic of China
2022-2023
Pearl River Hydraulic Research Institute
2023
Yunnan Normal University
2023
Shandong Agricultural University
2019-2023
Ministry of Agriculture and Rural Affairs
2023
Peking University Third Hospital
2022
Ship collisions often result in huge losses of life, cargo and ships, as well serious pollution the water environment. Meanwhile, it is estimated that between 75% 86% maritime accidents are related to human factors. Thus, necessary enhance intelligence ships partially or fully replace traditional piloting mode eventually achieve autonomous collision avoidance reduce influence In this paper, we propose a multi-ship automatic method based on double deep Q network (DDQN) with prioritized...
Abstract Ship collision avoidance has always been one of the classic topics in field marine research. In traditional encounter situations, officers on watch (OOWs) usually use a very high frequency (VHF) radio to coordinate each other. recent years, with continuous development autonomous ships, there will be mixed situation where ships different levels autonomy coexist at same time. Under such scenario, decision makers have perceptions current scene and decision-making logic, so conventional...
Merchant ships sometimes fail to detect small at night and in poor visibility, leading urgent situations even collisions. Infrared (IR) cameras have inherent advantages target detection become essential environmental awareness equipment on unmanned ships. The existing models are complex difficult deploy devices. Lightweight algorithms needed with the increase number of shipborne cameras. Therefore, herein, a lightweight model for IR ship was selected as research object. videos were collected...
The present study was carried out in 2016-2017 to assess the effect of subsoiling depth on soil bulk density, stability structure, physical properties and summer maize yield based a field experiment started 2015. Four tillage depths were studied: conventional 25 cm (CT25); 30 (ST30); 35 (ST35) 40 (ST40). results showed that at 20-50 ST30, ST35 ST40 decreased mean by 4.59, 7.13 8.27%, respectively, 0-40 reduced compactness 17.62, 23.63 36.42%, as compared CT25. layer under conditions relative...
Large ships are typically with large inertia and longtime delay in motion, prevailing collision avoidance methods, their maneuverability is generally neglected, there could be a dangerous situation if the system fails to control ship course as ordered timely manner. This paper proposes coordination which consists of two algorithms for avoiding risk then returning scheduled waypoint. The algorithm based on VO (velocity obstacle) method, derived from LOS (light sight) guidance. For better...
Deep Reinforcement Learning (DRL) is widely used in path planning with its powerful neural network fitting ability and learning ability. However, existing DRL-based methods use discrete action space do not consider the impact of historical state information, resulting algorithm being able to learn optimal strategy plan path, planned has arcs or too many corners, which does meet actual sailing requirements ship. In this paper, an optimized method for coastal ships based on improved...
Collision risk identification is necessary for autonomous ships to recognize the when facing different encounter situations and make proper collision avoidance decision. For achieving quantitative assessment of risk, this paper proposed a method based on field theory. Specifically, first combines uncertainty model ship position prediction improve quaternion domain (QSD). Then, theory situation encounters, constructed, which transform overlapping index into energy superposition problem. The...
Substituting mineral fertilizers (MFs) with manure nitrogen (N) can not only reduce environmental pollution, but also improve soil quality. However, the effects of various N substitution ratios (SRs, ratio over total applied) on properties and vegetable yields in China are poorly studied. Here, through a meta-analysis 667 observations, we assessed three SRs (low (SR ≤ 35%), medium (35% < SR 70%), high > 70%)) (soil organic carbon, SOC; nitrogen, STN; microbial biomass carbon (C) (N),...
Uncertainty is ubiquitous throughout engineering design processes. Robust optimization (RO) aims to find optimal solutions that are relatively insensitive input uncertainty. In this paper, a new approach presented for single-objective RO problems with an objective function and constraints continuous differentiable. Both the variables parameters interval uncertainties represented as affine forms. A mixed arithmetic (IA)/affine (AA) model subsequently utilized in order obtain approximations...
To solve the multi-ship interaction problem under scenario of multi-modal ships, this paper designed a ship Mobile Ad hoc Network (MANET) dominated by an autonomous ship. Foremost, we discussed development and status proposed inevitability scenarios, analyzed applicability ad networks in maritime communication. After that, MANET guidance was designed, including system composition, network mode, management method. We built connectivity model its attributes. In addition, transmission capacity...
Potential multi-ship conflict situations in coastal or near-shore port areas have always been one of the important factors affecting ship navigation safety and a key target maritime traffic regulatory authorities. In recent years, with continuous development integration various emerging technologies field, supervision has also shown trend intelligent autonomous development. The traditional method dominated by human experience is evolving towards data model-driven practices. order to solve...
The significant efforts being made towards the utilization of artificial soft materials holds considerable promise for developing tissue engineering scaffolds bone-related diseases in clinics. However, most these biomaterials cannot simultaneously satisfy multiple requirements high mechanics, good compatibility, and biological osteogenesis. In this study, an osteogenic hybrid hydrogel between amine-functionalized bioactive glass (ABG) 4-armed poly(ethylene glycol) succinimidyl...
Abstract Honey is an important agricultural and sideline product in China, which contains the high nutritional value commercial value. An advanced honey adulteration identification model can help beekeepers consumers better identify avoid losses. Given complex operation technical requirements of traditional experimental instruments, a new for quickly efficiently identifying with different kinds concentrations was developed this study. Based on data adulterated varieties obtained by...
Abstract Transplanting trees with rhizospheric soil is an important way to facilitate tree survival in the process of landscaping and reforestation. Traditional prevent looseness forming balls around roots bags, boxes or rope wrapping, which cumbersome, laborious easy break. This study aimed develop a new type degradable environment-friendly polymer as consolidation agent transplanting. In this paper, KGM/CA/PVA ternary blending was prepared by using Konjac glucomannan (KGM), chitosan (CA)...
This paper proposes an optimized H.264 Intra Prediction arithmetic to reduce the time required complete intra prediction by saving ninety percent waste during process of prediction. Firstly, 16×16 luminance can be decomposed equally into 16 parts and inserted same macro-block's 4×4 save in one Then, means changing computation sequence prediction, a large amount waiting between blocks' predictions further removed. Almost all reused or eliminated these optimizations. At last part this paper,...