Journal of Marine Science and Technology最新文献_第8页

Methanol as an Eco-Environmental Alternative Fuel for Ships: A Case Study 甲醇作为船舶生态环境替代燃料:一个案例研究

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2698

Samar K. Sallam, Mohamed M. Elgohary, Ibrahim S. Seddiek

引用次数: 0

Collision Risk Prediction for Small Ships in South Korea via Optimization of Wireless Communication Period 基于无线通信周期优化的韩国小型船舶碰撞风险预测

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2706

So-Ra Kim, Myoung-Ki Lee, Sangwon Park, Dae-Won Kim, Young-Soo Park

{"title":"Collision Risk Prediction for Small Ships in South Korea via Optimization of Wireless Communication Period","authors":"So-Ra Kim, Myoung-Ki Lee, Sangwon Park, Dae-Won Kim, Young-Soo Park","doi":"10.51400/2709-6998.2706","DOIUrl":"https://doi.org/10.51400/2709-6998.2706","url":null,"abstract":"Since the emergence of COVID-19, there has been a global surge in demand for marine leisure activities. In Korea, the population using marine leisure has risen approximately 192% to 20,406 people, compared to 6,966 people in the year 2000, indicating a continuous growth over the past two decades.. Maritime transportation has become increasingly intricate worldwide due to the development of increasingly autonomous, larger, and faster ships. To effectively address potential hazards in such complex traffic environments, it is imperative to anticipate future scenarios and respond rapidly. However, small vessels account for the highest proportion of marine accidents, exhibit movements that exceed the communication period, complicating their behavior prediction. This study aims to identify the appropriate communication interval and prediction methodology for estimating the navigational risk associated with small ships. To achieve this, prediction data were generated for Korean fishing boats using point-based and motion-based prediction methods and communication periods. The accuracy of these predictions was assessed by employing the root mean square error metric and a maritime traffic risk model based on existing data. The findings demonstrate that the point-based prediction method ismore accurate in predicting the future risk of small ships by approximately three times compared to the motion-based prediction method. Among the communication intervals analyzed in this study, 5-s interval is recommended to ensure accurate navigational predictions. The significance of this study lies in its determination of the optimal prediction method and communication period for predicting the navigational risk of small ships, which has practical implications for enhancing maritime safety.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135954552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic capabilities of maritime infrastructure: conceptual design of merchant vessels with usability in crisis. 海事基础设施的动态能力：具有危机可用性的商船概念设计。

IF 2.6 4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 Epub Date: 2023-03-20 DOI: 10.1007/s00773-023-00932-x

Satoshi Hirayama, Yasuo Ichinose, Shinnosuke Wanaka, Bryan Moser, Kazuo Hiekata

{"title":"Dynamic capabilities of maritime infrastructure: conceptual design of merchant vessels with usability in crisis.","authors":"Satoshi Hirayama, Yasuo Ichinose, Shinnosuke Wanaka, Bryan Moser, Kazuo Hiekata","doi":"10.1007/s00773-023-00932-x","DOIUrl":"10.1007/s00773-023-00932-x","url":null,"abstract":"Today's social infrastructure, e.g., transportation, medical services, energy supply and distribution, may become temporarily unable to provide functions due to the damage to buildings or excessive congestion resulting from threats, such as natural disasters, rising sea levels, pandemics. Maritime-based responses, typified by hospital ships, are drawing attention as a method to mitigate these effects. However, while designing emergency infrastructure, it is necessary to consider not only the value of these systems in emergencies but also during normal times. This study adopts the systems approach, a set of methods to conduct decision-making when complex stakeholders' relationships are involved. We focus on medical functions and propose a conceptual design for a flexible hospital ship with dynamic capability during emergencies as well as normal times. Specifically, we examine the optimal combination of ship type, size, navigation range during normal times, operations during emergencies, and contract approaches. Quantitative evaluation of utility during emergencies and economic efficiency are considered in tradeoff. In addition to the conventional cost-based study, we examined benefit-cost through ship sharing, in which ships are leased to the private sector as merchant vessels during normal times to generate revenue.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"28 2","pages":"422-438"},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10027256/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9584395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid species identification of Meretrix lusoria and three other Meretrix clams using PCR and RFLP analysis of the mitochondrial COII gene. 利用线粒体COII基因的PCR和RFLP分析快速鉴定了沙蛤和其他三种沙蛤的种类。

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2699

Chia-Hsuan Sung, Liang-Jong Wang, Chang-Wen Huang

{"title":"Rapid species identification of Meretrix lusoria and three other Meretrix clams using PCR and RFLP analysis of the mitochondrial COII gene.","authors":"Chia-Hsuan Sung, Liang-Jong Wang, Chang-Wen Huang","doi":"10.51400/2709-6998.2699","DOIUrl":"https://doi.org/10.51400/2709-6998.2699","url":null,"abstract":"Meretrix clams are among the most economically important species of bivalves in Eastern Asia and Taiwan. In the past, the identification of these hard clams depended on the shell morphology; however, species identification based on shell markings and shapes confuses the taxonomy of the Meretrix genus. The DNA molecular information is useful and can easily identify them accurately and quickly, especially the sequence of mitochondrial DNA. In this study, a PCR method to analyze the mitochondrial cytochrome c oxidase II (COII) gene was developed to rapidly identify of M. lusoria, M. lamarckii, M. lyrata and M. petechialis. Four different species of hard clams were easily distinguished by examining the COII PCR gel pattern using the naked eye. The limit of COII PCR detection was 39.06 pg, and it showed good specificity of primer. Further verification using RFLP suggested that four species of hard clams could be identified on the basis of the RFLP gel pattern produced by the digestion of one restriction enzyme, and these results were consistent with the PCR results. The ML phylogenetic analysis of COII grouped the four Meretrix species into different clades with strong bootstrap support. These results are consistent with those of the phylogenetic analysis of COI gene. In summary, this study’s COII PCR and RFLP method facilitates the rapid, accurate, and inexpensive identification of Meretrix species. These results suggest that this COII PCR method can be used for routine and rapid species identification on population, aquaculture and breeding management.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135954201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A methodology for statistical mean wave climate regime characterisation in oceanic islands: the case of the southern coast of Tenerife 海洋岛屿统计平均波浪气候状态特征的方法:以特内里费岛南部海岸为例

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2707

Emilio Megías, Manuel García-Román

{"title":"A methodology for statistical mean wave climate regime characterisation in oceanic islands: the case of the southern coast of Tenerife","authors":"Emilio Megías, Manuel García-Román","doi":"10.51400/2709-6998.2707","DOIUrl":"https://doi.org/10.51400/2709-6998.2707","url":null,"abstract":"Oceanic islands of volcanic origin tend to have peculiar characteristics, such as: exposure to many wave directions; grouping in archipelagos; steep coastal slopes; and small coastal shelves. All these features require certain considerations in wave climate studies. These types of studies, when wave spectra are not available and have to be performed with parametric data, can be unreliable without an adequate systematic treatment. In this work we propose a methodology consisting of pre-classification according to the peak period and subsequent separation into different sectors according to the geographical fetch. The island of Tenerife is the case study, and in particular the waves reaching its southern coast. Data from the existing deep-water buoy have been used in this work. A range of fetch lengths between the few miles of distance to the neighbouring islands, and more than 5,500 nautical miles that separate it from the Antarctic region have been considered. The dominant type of waves and the direction of provenance in each season of the year have been characterised. The proposed methodology has been designed to be applied to any oceanic archipelago with similar characteristics to those mentioned above.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135954550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A safety supervision tool toward digitalization of maritime HRA applications: the case of MMOHRA. 面向海上HRA应用数字化的安全监管工具:以MMOHRA为例。

IF 2.6 4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.1007/s00773-022-00911-8

Cagatay Kandemir, Metin Celik

{"title":"A safety supervision tool toward digitalization of maritime HRA applications: the case of MMOHRA.","authors":"Cagatay Kandemir, Metin Celik","doi":"10.1007/s00773-022-00911-8","DOIUrl":"https://doi.org/10.1007/s00773-022-00911-8","url":null,"abstract":"This study proposed a safety supervision tool to HRA-based monitoring of ship maintenance operations via a digital platform. It is conceptualized to assist safety supervisors in the best proactive measures along with maintenance works onboard ships. The tool refers the marine maintenance and operations human reliability analysis (MMOHRA) concept. Moreover, it facilitates the timely and consistently practice of MMOHRA. Indeed, it accurately identifies critical tasks and associate recovery acts. Fundamentally, a rule-based mechanism supported with relation matrix response to general task type selection, EPCs' assignment, and human error probability (HEP) calculation, respectively. Then, the system automatically calculates, visualizes and manages HEP values of operation steps. Consequently, this study digitalizes maritime HRA investigations particular to maintenance operations. The proposed tool, compliance with the relevant sections of updated inspection regimes such as SIRE 2.0 and DryBms, has very high utility to effectively control human element onboard. This study also enables a further research potential to conduct an extended human reliability database in ship fleet level.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"28 1","pages":"87-97"},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9628432/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10854353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predefined-time Neural Sliding Mode Control based Trajectory Tracking of Autonomous Surface Vehicle 基于预定义时间神经滑模控制的自动水面车辆轨迹跟踪

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2697

Han Xue, Shulin Li

{"title":"Predefined-time Neural Sliding Mode Control based Trajectory Tracking of Autonomous Surface Vehicle","authors":"Han Xue, Shulin Li","doi":"10.51400/2709-6998.2697","DOIUrl":"https://doi.org/10.51400/2709-6998.2697","url":null,"abstract":"With the progress and development of modern industry, it is urgent to develop a more general and mature predefined time control theory system for uncertain nonlinear systems and apply it to practical engineering systems. Therefore, a novel predefined-time sliding mode control is designed to improve the slow convergence speed of asymptotically convergent controllers and finite-time convergent controllers affected by the initial state of the system. The proposed control approach is proved to converge from the initial value to the balance position using Jensen's inequality and Liapunov theorem. The proposed control method can deal with the ship motion system having six Degree-Of-Freedom (DOF) under external disturbance and parameter uncertainty. Furthermore, there are several application scenarios to simulate the proposed algorithm, such as the ship which is required to achieve ideal control accuracy in a short and fixed time. Alternatively, an unmanned ship is required to arrive at the desired location within the specified time. To sum up, this algorithm can extend some existing theoretical results on finite-time and fixed-time control to the predefined-time case.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135954202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Path Planning of UAV Navigation Mark Inspection Using a K-means Clustering ACA 基于k均值聚类ACA的无人机航标检测路径规划

4区工程技术

Journal of Marine Science and Technology Pub Date : 2023-01-01 DOI: 10.51400/2709-6998.2705

Jiaqi Li, Weifeng Li, Wenting Zhang

引用次数: 0

Study on Legal Issues of Ocean Fishing in China 中国海洋渔业法律问题研究

IF 2.6 4区工程技术

Journal of Marine Science and Technology Pub Date : 2022-06-13 DOI: 10.30564/jms.v4i2.4454

Yan-jing Sun

{"title":"Study on Legal Issues of Ocean Fishing in China","authors":"Yan-jing Sun","doi":"10.30564/jms.v4i2.4454","DOIUrl":"https://doi.org/10.30564/jms.v4i2.4454","url":null,"abstract":"“The 21st century is the century of the ocean.” In recent years, China has paid more and more attention to the promotion and development of the marine industry, especially the ocean fishery has brought immeasurable economic benefits to China. The development of the marine field is becoming more and more important in the national political, economic and cultural development. All coastal countries have included marine development in their national development strategies and continuously improved their marine legislation under the provisions of the United Nations Convention on the law of the sea. China’s pelagic fishing began in 1985, but because China’s pelagic fishing started too late, after the entry into force of the United Nations Convention on the law of the sea at the end of 1994, nearly 36% of the richest high seas on earth became the exclusive economic zone of coastal countries, and the development space of China’s pelagic fishing has become very limited. After just more than 30 years of development, ***. However, before that, China’s pelagic fishing was still subject to the dual norms of international conventions and domestic laws, and China had not yet formulated a special law on pelagic fishing, and there were still many deficiencies in the legal system norms of pelagic fishing. Therefore, the biggest problem facing China’s pelagic fishery is how to better develop the marine industry under the system of laws and regulations, drive the coordinated economic development, provide legal guidance and help for pelagic fishermen, and provide solid technical support for building a marine power with Chinese characteristics.","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":"58 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74700161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological Invasions in Marine Ecosystems: Amphipods (Crustacea: Amphipoda) as a Model Group 海洋生态系统中的生物入侵:片脚类(甲壳类:片脚类)作为一个模式群

IF 2.6 4区工程技术

Journal of Marine Science and Technology Pub Date : 2022-06-13 DOI: 10.30564/jms.v4i1.4564

M. P. Cabezas

引用次数: 0