Risk evaluation system of navigation security based on coupled wind and wave model: a case of study of Qiongzhou strait

Xu, Sudong; Ma, Mengdi; Yin, Kai; Tang, Shuang

doi:10.1049/iet-its.2019.0418

Cited by 12 publications

(5 citation statements)

References 21 publications

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“…The adjusted degree of significance test should use the rank consistency test (nonparametric test) [17]. If P > 0:05, this paper can consider that the expert opinion rating is unreliable and the result is not ideal.…”

Section: Wireless Communications and Mobile Computingmentioning

confidence: 99%

Construction of Evaluation Index System of Physical Education Teaching Environment in Colleges and Universities Based on 5G Technology

Tian

Tie

Wang

et al. 2022

Wireless Communications and Mobile Computing

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A top notch actual training climate has an indispensable main impetus for the physical and mental improvement of youths and kids and the nature of actual instruction. This paper proposes an assessment file arrangement of actual instruction showing climate in schools and colleges in light of 5G innovation, planning to fabricate an assessment list arrangement of actual training educating in the climate of 5G data innovation in the coordination stage. The technique for this paper is to concentrate on the organization energy effectiveness model, layout a framework model and 5G list demonstrating, and afterward propose a showing climate assessment review and examination strategy. The job of these strategies is to plan sensible assessment norms based on hypothetical examination. It utilizes 5G data innovation and organization effectiveness and lastly constructs a school sports ecological assessment framework. Through the poll overview, this paper comprehends what is going on of actual schooling showing climate in Chinese universities and colleges and tracks down the purposes behind its disparities and issues. This paper develops actual training climate assessment file framework, researches the game climate assessment and actual exercise direction, and afterward proposes actual instruction and assessment framework under 5G innovation. The outcomes show that in the assessment list arrangement of actual instruction showing climate in schools and colleges, the heaviness of material climate is 0.6796, demonstrating that the most dire errand for schools and colleges to further develop the actual training climate is to work on the actual climate.

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Section: Wireless Communications and Mobile Computingmentioning

confidence: 99%

Construction of Evaluation Index System of Physical Education Teaching Environment in Colleges and Universities Based on 5G Technology

Tian

Tie

Wang

et al. 2022

Wireless Communications and Mobile Computing

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“…Marine storms are one of the major preoccupations of sea users and marine security services. They are often responsible for significant damage and loss in several sectors of marine activity such as aquaculture [1] and navigation [2,3]; additionally, these storms are responsible for several changes in the coastlines [4,5] and cause damage to coastal and port infrastructure [6][7][8]. The extent of this damage can have a considerable impact on the economies of countries.…”

Section: Introductionmentioning

confidence: 99%

Increasing Trend on Storm Wave Intensity in the Western Mediterranean

Amarouche

Akpınar

2021

Climate

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Annual trends in storm wave intensity over the past 41 years were evaluated during the present study. Storm wave intensity is evaluated in terms of total storm wave energy (TSWE) and storm power index (SPI) of Dolan and Davis (1992). Using an accurate long-term wave hindcast developed using a calibrated SWAN model, all storm wave events occurring over the past 41 years were characterized in terms of significant wave height (Hs) and total storm duration. Thus, both SPI and TSWE was computed for each storm wave event. The Theil–Sen slope estimator was used to estimate the annual slopes of the SPI and TSWE and the Mann–Kendall test was used to test the trend significance with different confidence levels. The present study is spatially performed for the western Mediterranean Sea basin considering 2308 grid points in a regular grid of 0.198° resolution in both directions. Results allow as to define five hotspots covering a large area, experienced a significant increasing slope in both SPI and TSWE (annual maxima and average). The confidence level in this area exceed 95%, with a steep slope between 100 kWh·m−1·year−1 and 240 kWh·m−1·year−1 for annual max TSWE and between 28 m²·h·year−1 and 49 m²·h·year−1 for annual max SPI. Consideration of the present findings is strongly recommended for risk assessment and for sustainable development in coastal and offshore area and to identify areas sensitive to global climate change in the western Mediterranean Sea.

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“…With the development of the maritime transportation, the number of ships continues to expand [31]. It becomes very important to improve the performance of maritime surveillance systems with various imaging sensors.…”

Section: Discussionmentioning

confidence: 99%

A two‐step image stabilisation method for promoting visual quality in vision‐enabled maritime surveillance systems

Huang

Liu

2022

IET Intelligent Trans Sys

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Maritime surveillance systems have been commonly exploited in vessel traffic services. The maritime visual information can be obtained through shore‐borne, ship‐borne or air‐borne cameras. However, the obtained visual data often suffers from blur effects due to the shaky imaging devices in wild conditions (e.g. wind, waves and currents). It is necessary to develop image stabilisation methods to promote visual quality. In this work, we propose a two‐step image stabilisation method by introducing the blind deblurring technology. In particular, we first propose a hybrid regularised blur kernel estimation method to robustly and accurately capture the motion trajectory of imaging devices during shaking. Once the estimation of motion trajectory is obtained, we then present a robust non‐blind deblurring method in the second step to implement restoration of latent sharp image (i.e. image stabilisation). All non‐convex and non‐smooth minimisation problems related to blur kernel estimation and non‐blind deblurring are effectively solved using the alternating direction method of multipliers‐based numerical methods. Extensive experiments on both synthetic and realistic blurred images have been performed. All experimental results have demonstrated the satisfactory performance of our image stabilisation method under different imaging conditions. Moreover, the comparisons on other state‐of‐the‐art methods have also indicated that our method could provide a good representation of promoting object detection in vision‐enabled maritime surveillance systems.

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Risk evaluation system of navigation security based on coupled wind and wave model: a case of study of Qiongzhou strait

Cited by 12 publications

References 21 publications

Construction of Evaluation Index System of Physical Education Teaching Environment in Colleges and Universities Based on 5G Technology

Construction of Evaluation Index System of Physical Education Teaching Environment in Colleges and Universities Based on 5G Technology

Increasing Trend on Storm Wave Intensity in the Western Mediterranean

A two‐step image stabilisation method for promoting visual quality in vision‐enabled maritime surveillance systems

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