Pub Date : 2022-04-20DOI: 10.7225/toms.v11.n01.w08
O. Yüksel, Burak Köseoğlu
This study aims to estimate the fuel consumption of marine diesel generators onboard. Objective technical specifications and operational data on the ship's power generating plants and port calls were collected from an oceangoing oil/chemical tanker and used to develop the mathematical model of the plant in the Python and MATLAB environment. The model consists of alternators, prime movers and load distributions of the ship’s power generating plant and provides information on fuel consumption in metric tons calculated based on hours of operation and specific fuel consumption data. Regression models have helped predict future fuel consumption for the plant and the optimal model for the dataset was identified by comparing four different algorithms. As the results have shown the Ordinary Least Squares Regression to be optimum, it was used to make one, five, and ten-year predictions. The predictions for one-year, five-year, and ten-year periods are 4,322,436, 10,684,860, and 18,615,472 t respectively. The selected model predicts fuel consumption with R2 of 0.999, MAE of 3.932, and RMSE of 2.935. Fuel consumption predictions facilitated plant emission calculation.
{"title":"Regression Modelling Estimation of Marine Diesel Generator Fuel Consumption and Emissions","authors":"O. Yüksel, Burak Köseoğlu","doi":"10.7225/toms.v11.n01.w08","DOIUrl":"https://doi.org/10.7225/toms.v11.n01.w08","url":null,"abstract":"This study aims to estimate the fuel consumption of marine diesel generators onboard. Objective technical specifications and operational data on the ship's power generating plants and port calls were collected from an oceangoing oil/chemical tanker and used to develop the mathematical model of the plant in the Python and MATLAB environment. The model consists of alternators, prime movers and load distributions of the ship’s power generating plant and provides information on fuel consumption in metric tons calculated based on hours of operation and specific fuel consumption data. Regression models have helped predict future fuel consumption for the plant and the optimal model for the dataset was identified by comparing four different algorithms. As the results have shown the Ordinary Least Squares Regression to be optimum, it was used to make one, five, and ten-year predictions. The predictions for one-year, five-year, and ten-year periods are 4,322,436, 10,684,860, and 18,615,472 t respectively. The selected model predicts fuel consumption with R2 of 0.999, MAE of 3.932, and RMSE of 2.935. Fuel consumption predictions facilitated plant emission calculation.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"353 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76397427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.021
N. Šerić, L. Bagarić, Anđela Jakšić Stojanović, Nevena Keković
Specialized tourists offer in the post covid time is an important reason in choosing the destination to travel to. A new perception of this offer puts new challenges to those who design such offers. Most specialized offers are the result of entrepreneurial initiative and intuition. Authors have dealt with the creation of such offers as an important destination concurrent factor in their own cross-border cooperation. Based on their findings, they have developed a model of creating specialized tourism products for post covid time by linking core, additional, and expanded contents with brand creation and the marketing strategy. In this paper authors continue their research by testing that model through two platforms: desk research of the latest cognitions related to the repercussions of Covid-19 on tourist mind, and on a convenient sample of connoisseurs. The testing of the model is connected with one case study in which authors cooperate in practice. The findings have been tested through a survey on a sample of experts (representatives of travel agencies) related to their experiences in sales for 2020 and 2021.They have also found important changes in tourist perception of specialized tourist product. The findings offer the answers as to why the basic contents of the specialized tourist offer is no longer sufficient, as well as a way for developing additional and expanded contents, on which the brand and brand management activities in the post corona period should be primarily based, i.e. on what to base the marketing strategies in the post covid time.
{"title":"Testing of the Model of Creating a Specialized Tourist Product for Post-COVID Time","authors":"N. Šerić, L. Bagarić, Anđela Jakšić Stojanović, Nevena Keković","doi":"10.7225/toms.v10.n02.021","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.021","url":null,"abstract":"Specialized tourists offer in the post covid time is an important reason in choosing the destination to travel to. A new perception of this offer puts new challenges to those who design such offers. Most specialized offers are the result of entrepreneurial initiative and intuition. Authors have dealt with the creation of such offers as an important destination concurrent factor in their own cross-border cooperation. Based on their findings, they have developed a model of creating specialized tourism products for post covid time by linking core, additional, and expanded contents with brand creation and the marketing strategy. In this paper authors continue their research by testing that model through two platforms: desk research of the latest cognitions related to the repercussions of Covid-19 on tourist mind, and on a convenient sample of connoisseurs. The testing of the model is connected with one case study in which authors cooperate in practice. The findings have been tested through a survey on a sample of experts (representatives of travel agencies) related to their experiences in sales for 2020 and 2021.They have also found important changes in tourist perception of specialized tourist product. The findings offer the answers as to why the basic contents of the specialized tourist offer is no longer sufficient, as well as a way for developing additional and expanded contents, on which the brand and brand management activities in the post corona period should be primarily based, i.e. on what to base the marketing strategies in the post covid time.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"57 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73280161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.w02
Per Wide, Violeta Roso
To meet increased freight flows through maritime ports, a high level of resource utilisation in hinterland transport is of crucial importance. However, various perspectives on resource utilisation create issues with use of information for operational decisions in port hinterland. The purpose of this paper is to explore the use of information related to resource utilisation for operational planning in port hinterland freight transport to facilitate its improvement. The study is case-based, and the data is collected through semi-structured interviews, visual observations, and company documents. The findings are analysed with a framework built from literature emphasising different resource utilisation perspectives and the use of information in road freight transport chain decisions. The findings show that the use of information on resource utilisation in operational freight transport decisions in the port hinterland transport system is limited and lacks a complete system overview. Instead of the information on measured parameters, different types of estimates of efficiency parameters (including resource utilisation) are commonly used for operational planning decisions. The information about the measured indicators has to be combined with other information to obtain an efficient level of resource utilisation; otherwise, it could generate incorrect assumptions regarding utilisation. The paper contributes to the topic of operational freight transport planning by describing the use of information on resource utilisation.
{"title":"Information on Resource Utilisation for Operational Planning in Port Hinterland Transport","authors":"Per Wide, Violeta Roso","doi":"10.7225/toms.v10.n02.w02","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.w02","url":null,"abstract":"To meet increased freight flows through maritime ports, a high level of resource utilisation in hinterland transport is of crucial importance. However, various perspectives on resource utilisation create issues with use of information for operational decisions in port hinterland. The purpose of this paper is to explore the use of information related to resource utilisation for operational planning in port hinterland freight transport to facilitate its improvement. The study is case-based, and the data is collected through semi-structured interviews, visual observations, and company documents. The findings are analysed with a framework built from literature emphasising different resource utilisation perspectives and the use of information in road freight transport chain decisions. The findings show that the use of information on resource utilisation in operational freight transport decisions in the port hinterland transport system is limited and lacks a complete system overview. Instead of the information on measured parameters, different types of estimates of efficiency parameters (including resource utilisation) are commonly used for operational planning decisions. The information about the measured indicators has to be combined with other information to obtain an efficient level of resource utilisation; otherwise, it could generate incorrect assumptions regarding utilisation. The paper contributes to the topic of operational freight transport planning by describing the use of information on resource utilisation.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76035838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.008
S. Thanakodi, Muhamad Lazim Talib, Syarifah Aishah Syed Ali, Norshahriah Wahab, Amalina Farhi Ahmad, Norshaheeda Mohd Noor, Muhammad Izham Bin Ahmad Zahari, Mohd Arif Ahmad
Life Buoy, also known as a life preserver, is a crucial safety tool on board any marine ships. The most common and conventional lifesaver is operated manually to save people from drowning, yet this method poses a risk for both the victim and rescuer. Hence, with the help of current technology, a smart lifebuoy has been developed, whereby the rescuer just operates the lifebuoy using remote control. Yet, the existing smart life buoy system has been found heavy and hard to be operated, especially for women, children, and other people with disabilities.This paper focuses on the development of a lightweight smart life buoy system and its characteristics. Arduino Uno R3, Arduino Nano, DC motor 775, Transmitter and Receiver kit were the main components used in the development of the lightweight smart life buoy system (LWSLB). The developed LWSLB system was tested at the National Defence University of Malaysia’ swimming pool due to Covid-19 lockdown, and data such as speed, range of remote connection and battery endurance were obtained. It has been found out that the developed LWSLB weighs just 3.5kg overall compared to Brand S which weighs 13.75kg. However, in terms of speed, Brand S proves to be faster at 4.17m/s compared to LWSLB which exhibits a speed of 1.25m/s.
救生圈，也被称为救生圈，是任何海上船只上的重要安全工具。最常见和传统的救生器是手动操作来拯救溺水的人，然而这种方法对受害者和救援者都有风险。因此，在现有技术的帮助下，开发了一种智能救生圈，救援人员只需通过遥控器操作救生圈。然而，现有的智能救生圈系统笨重且难以操作，特别是对于妇女、儿童和其他残疾人。本文重点介绍了一种轻量化智能救生圈系统的研制及其特点。轻量级智能救生圈系统(LWSLB)的开发主要采用Arduino Uno R3、Arduino Nano、直流电机775、发射器和接收器套件。开发的LWSLB系统在马来西亚国防大学因新冠肺炎疫情封锁而关闭的游泳池进行了测试，获得了速度、远程连接范围、电池续航时间等数据。据悉，开发的LWSLB的总重量仅为3.5公斤，而S品牌的总重量为13.75公斤。但在速度方面，Brand S的速度为4.17m/ S，而LWSLB的速度为1.25m/ S。
{"title":"Study into the Development of a Light Weight Smart Life Buoy Prototype (LWSLB)","authors":"S. Thanakodi, Muhamad Lazim Talib, Syarifah Aishah Syed Ali, Norshahriah Wahab, Amalina Farhi Ahmad, Norshaheeda Mohd Noor, Muhammad Izham Bin Ahmad Zahari, Mohd Arif Ahmad","doi":"10.7225/toms.v10.n02.008","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.008","url":null,"abstract":"Life Buoy, also known as a life preserver, is a crucial safety tool on board any marine ships. The most common and conventional lifesaver is operated manually to save people from drowning, yet this method poses a risk for both the victim and rescuer. Hence, with the help of current technology, a smart lifebuoy has been developed, whereby the rescuer just operates the lifebuoy using remote control. Yet, the existing smart life buoy system has been found heavy and hard to be operated, especially for women, children, and other people with disabilities.This paper focuses on the development of a lightweight smart life buoy system and its characteristics. Arduino Uno R3, Arduino Nano, DC motor 775, Transmitter and Receiver kit were the main components used in the development of the lightweight smart life buoy system (LWSLB). The developed LWSLB system was tested at the National Defence University of Malaysia’ swimming pool due to Covid-19 lockdown, and data such as speed, range of remote connection and battery endurance were obtained. It has been found out that the developed LWSLB weighs just 3.5kg overall compared to Brand S which weighs 13.75kg. However, in terms of speed, Brand S proves to be faster at 4.17m/s compared to LWSLB which exhibits a speed of 1.25m/s.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"81 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79323003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.w01
Alen Jugović, Miljen Sirotić, I. Peronja
The strong and close relationship between the port and the city, which is often a consequence of historical circumstances, has become disrupted due to the negative impact of the port on the urban environment. The disruption of this relationship is forcing port city authorities worldwide to find effective methods to renew the port – city relationship. As an additional element to this complex relationship, the concept of sustainability is taken into consideration. Therefore, the relationship between the port and the city needs to be studied in compliance with economic, social and environmental criteria. This paper studies port and urban systems interdependently, as well as their integration into a sustainable whole. The dynamics of change in the port – city interface zone require careful planning and assessment before intervention and development. Accordingly, transition management is presented as a mechanism for renewing, coupling, and monitoring the relationship between the port and the city concerning their complex and dynamic nature. The paper’s key findings are based on the contribution of relevant economic, social, and environmental criteria through which the possibility of developing a systematic framework for a coordinated transition to a cooperative relationship between the port and the city from the perspective of sustainability is realized.
{"title":"Sustainable Development of Port Cities from the Perspective of Transition Management","authors":"Alen Jugović, Miljen Sirotić, I. Peronja","doi":"10.7225/toms.v10.n02.w01","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.w01","url":null,"abstract":"The strong and close relationship between the port and the city, which is often a consequence of historical circumstances, has become disrupted due to the negative impact of the port on the urban environment. The disruption of this relationship is forcing port city authorities worldwide to find effective methods to renew the port – city relationship. As an additional element to this complex relationship, the concept of sustainability is taken into consideration. Therefore, the relationship between the port and the city needs to be studied in compliance with economic, social and environmental criteria. This paper studies port and urban systems interdependently, as well as their integration into a sustainable whole. The dynamics of change in the port – city interface zone require careful planning and assessment before intervention and development. Accordingly, transition management is presented as a mechanism for renewing, coupling, and monitoring the relationship between the port and the city concerning their complex and dynamic nature. The paper’s key findings are based on the contribution of relevant economic, social, and environmental criteria through which the possibility of developing a systematic framework for a coordinated transition to a cooperative relationship between the port and the city from the perspective of sustainability is realized.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"3 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87191373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.007
Mohd Shukri Mohd Yusop, Mohd Norsyarizad Razali, Nazirah Md Tarmizi, Mohd Najib Abdul Ghani Yolhamid, M. Azzeri, A. Rahman
Marine ecosystems and natural habitat play the important role of the Earth’s life support system. They significantly contribute to economies and food safety and help preserve ecological processes. However, the devastation of the marine ecosystem in Malaysia due to the human factor and climate change is quite alarming. Therefore, spatial marine information, especially on the distribution of seabed substrates and habitat mapping, are of utmost importance for marine ecosystem management and conservation. Traditionally, seabed substrate and habitat mapping were classified based on direct observation techniques such as photography, video, sampling, coring and scuba diving. These techniques are often limited due to water clarity and weather conditions and only suitable for smaller scale surveys. In this study, we employed an acoustic approach using the RoxAnn Acoustic Ground Discrimination System (AGDS) with a high-frequency single-beam echo sounder to examine the distribution of seabed substrate at the Mandi Darah Island, Sabah. The acoustic signals recorded by AGDS are translated into hardness and roughness indices which are then used to identify the unique characteristics of the recorded seabed types. The analysis has shown that fifteen types of substrates, ranging from silt to rough/some seagrass, have been identified and classified. The findings demonstrated that the acoustic method was a better alternative for seabed substrate determination than the conventional direct observation techniques in terms of cost and time spent, especially in large scale surveys. The seabed substrate dataset from this study could be used as baseline information for the better management and conservation of the marine ecosystem.
{"title":"Acoustic Approach to Determining Seabed Substrates Distribution at Mandi Darah Island, Sabah","authors":"Mohd Shukri Mohd Yusop, Mohd Norsyarizad Razali, Nazirah Md Tarmizi, Mohd Najib Abdul Ghani Yolhamid, M. Azzeri, A. Rahman","doi":"10.7225/toms.v10.n02.007","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.007","url":null,"abstract":"Marine ecosystems and natural habitat play the important role of the Earth’s life support system. They significantly contribute to economies and food safety and help preserve ecological processes. However, the devastation of the marine ecosystem in Malaysia due to the human factor and climate change is quite alarming. Therefore, spatial marine information, especially on the distribution of seabed substrates and habitat mapping, are of utmost importance for marine ecosystem management and conservation. Traditionally, seabed substrate and habitat mapping were classified based on direct observation techniques such as photography, video, sampling, coring and scuba diving. These techniques are often limited due to water clarity and weather conditions and only suitable for smaller scale surveys. In this study, we employed an acoustic approach using the RoxAnn Acoustic Ground Discrimination System (AGDS) with a high-frequency single-beam echo sounder to examine the distribution of seabed substrate at the Mandi Darah Island, Sabah. The acoustic signals recorded by AGDS are translated into hardness and roughness indices which are then used to identify the unique characteristics of the recorded seabed types. The analysis has shown that fifteen types of substrates, ranging from silt to rough/some seagrass, have been identified and classified. The findings demonstrated that the acoustic method was a better alternative for seabed substrate determination than the conventional direct observation techniques in terms of cost and time spent, especially in large scale surveys. The seabed substrate dataset from this study could be used as baseline information for the better management and conservation of the marine ecosystem.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"21 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73762669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.001
Mohd Najib Abdul Ghani Yolhamid, Mohd Norsyarizad Razali, M. Azzeri, Mohd Shukri Mohd Yusop, A. Zaidi, Noh Zainal Abidin
The energy ship is a concept for offshore wind energy capture which has received very little attention until today. To this date, there had not been yet an experimental proof of concept. In order to tackle this issue, an experimental platform and data acquisition system has been developed. A 5.5m long sailing catamaran served as a platform equipped with a 240mm diameter water turbine. The energy ship platform has been tested several times in the actual river to investigate the workability of the platform and data acquisition system. Results show that energy ship platform can produced 500W electric power for a true wind speed of 10 knots.
{"title":"Development and Experimental Investigation of a Marine Vessel Utilizing the Energy Ship Concept for Far Offshore Wind Energy Conversion","authors":"Mohd Najib Abdul Ghani Yolhamid, Mohd Norsyarizad Razali, M. Azzeri, Mohd Shukri Mohd Yusop, A. Zaidi, Noh Zainal Abidin","doi":"10.7225/toms.v10.n02.001","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.001","url":null,"abstract":"The energy ship is a concept for offshore wind energy capture which has received very little attention until today. To this date, there had not been yet an experimental proof of concept. In order to tackle this issue, an experimental platform and data acquisition system has been developed. A 5.5m long sailing catamaran served as a platform equipped with a 240mm diameter water turbine. The energy ship platform has been tested several times in the actual river to investigate the workability of the platform and data acquisition system. Results show that energy ship platform can produced 500W electric power for a true wind speed of 10 knots.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"31 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84390599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.018
J. Shackman, P. Lambert, Phoenix Benitiez, Nathan Griffin, David Henderson
In this study, the issue of how global maritime stock prices influence the stock prices of large transportation companies in the U.S. and other large markets is examined. Maritime stocks are chosen because they are central in global trade and thus may be good indicators of future global stock market and economic trends. Maritime companies are often owned by families or governments and are traded in stock markets with lower standards of accountability, hence information flows from maritime stocks may be slower than flows from other stocks. Cointegration and vector error-correction analysis is used to analyze the short-term and long-term relationships between maritime stocks, rail stocks, and trucking stocks. Evidence is found of a gradual diffusion of information from maritime stock prices to large rail or trucking stocks. This suggests that price changes in maritime stocks may help predict changes in prices in non-maritime transportation stocks.
{"title":"Maritime Stock Prices and Information Flows: A Cointegration Study","authors":"J. Shackman, P. Lambert, Phoenix Benitiez, Nathan Griffin, David Henderson","doi":"10.7225/toms.v10.n02.018","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.018","url":null,"abstract":"In this study, the issue of how global maritime stock prices influence the stock prices of large transportation companies in the U.S. and other large markets is examined. Maritime stocks are chosen because they are central in global trade and thus may be good indicators of future global stock market and economic trends. Maritime companies are often owned by families or governments and are traded in stock markets with lower standards of accountability, hence information flows from maritime stocks may be slower than flows from other stocks. Cointegration and vector error-correction analysis is used to analyze the short-term and long-term relationships between maritime stocks, rail stocks, and trucking stocks. Evidence is found of a gradual diffusion of information from maritime stock prices to large rail or trucking stocks. This suggests that price changes in maritime stocks may help predict changes in prices in non-maritime transportation stocks.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"15 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78505532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.002
Muhammad Asyraf Abdullah, Noh Zainal Abidin, Zulkifly Mat Radzi, Mohd Arif Ahmad, V. Munikanan, Mohd Norsyarizad Razali, Neza Ismail
Harvesting energy from ocean waves remains an untapped resource, and it is considered a new methodology in renewable energy, especially in Malaysia. This research is based on a project at Kuantan Port that used Wave Energy Converter (WEC) as a platform to generate energy from waves and convert it into electricity. The purpose of this research is to conduct a risk assessment before the execution of the project by referring to the International Organization for Standardization (ISO) 31000 and Risk Management Guidelines: Companion to AS/NZS 4360:2004. It started from risk identification and planned a mitigation way to reduce the grade of risk. These mitigations will be monitored throughout the project to avoid any accidents or harm during construction and installation in the future. The assessment will be using a qualitative analysis method that will gather all the possible risks that impact the project and propose the actions to mitigate the risk. The assessment will also consider the likelihood, seriousness, and weightage to determine the risk level. The risk assessment is divided into six clusters: project management, hydrography, mechanical, electrical, civil, and safety and security. After analysis, each cluster has given their feedback on the risk assessment and their cluster-s risk grade. This research has found that the risk grade is at grade C, which needs the risk assessment of this project to reduce the likelihood, seriousness, and required mitigation actions. Eventually, after the mitigation plan is applied to each risk, the grade of risk is reduced to N.
{"title":"Risk Assessment of Wave Energy Converter At Kuantan Port, Pahang","authors":"Muhammad Asyraf Abdullah, Noh Zainal Abidin, Zulkifly Mat Radzi, Mohd Arif Ahmad, V. Munikanan, Mohd Norsyarizad Razali, Neza Ismail","doi":"10.7225/toms.v10.n02.002","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.002","url":null,"abstract":"Harvesting energy from ocean waves remains an untapped resource, and it is considered a new methodology in renewable energy, especially in Malaysia. This research is based on a project at Kuantan Port that used Wave Energy Converter (WEC) as a platform to generate energy from waves and convert it into electricity. The purpose of this research is to conduct a risk assessment before the execution of the project by referring to the International Organization for Standardization (ISO) 31000 and Risk Management Guidelines: Companion to AS/NZS 4360:2004. It started from risk identification and planned a mitigation way to reduce the grade of risk. These mitigations will be monitored throughout the project to avoid any accidents or harm during construction and installation in the future. The assessment will be using a qualitative analysis method that will gather all the possible risks that impact the project and propose the actions to mitigate the risk. The assessment will also consider the likelihood, seriousness, and weightage to determine the risk level. The risk assessment is divided into six clusters: project management, hydrography, mechanical, electrical, civil, and safety and security. After analysis, each cluster has given their feedback on the risk assessment and their cluster-s risk grade. This research has found that the risk grade is at grade C, which needs the risk assessment of this project to reduce the likelihood, seriousness, and required mitigation actions. Eventually, after the mitigation plan is applied to each risk, the grade of risk is reduced to N.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"41 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75787672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-21DOI: 10.7225/toms.v10.n02.020
Purnama Nancy Lumban Batu, A. Priadi, Wida Cahyaningrum
Maritime English is defined as the English language used by seafarers both at sea and in port and by individuals working in the shipping and shipbuilding industry. The teachers are required to make the students skillful and ready to work in maritime sectors once they graduate. The existing and relevant maritime English learning materials following STCW 2010 curriculum in Indonesia are still rare and limited. This study aims to conduct a need analysis of android and web-based Maritime English apps based on the students' perspectives. This study uses questionnaires shared and completed randomly by 318 students from different majors and at Sekolah Tinggi Ilmu Pelayaran (Maritime Higher Education Institute) Jakarta. The data is gathered and analyzed accordingly to create the essential concept of the MarEng apps design. The questionnaire result indicates that most of the participants need an ME learning platform in order for them to have better access to and to practice the required knowledge and skills. Explicit bilingual instructions and features like video, audio, and text are also preferred to be incorporated. It is suggested to start from the elementary level and cover the four skills, especially listening, speaking, and pronunciation. It is so suggested that the platform can be constructed in easy and fun UI/UX covering the required content.
{"title":"Accessible Learning Sources: A Need Analysis on Maritime English Learning Apps","authors":"Purnama Nancy Lumban Batu, A. Priadi, Wida Cahyaningrum","doi":"10.7225/toms.v10.n02.020","DOIUrl":"https://doi.org/10.7225/toms.v10.n02.020","url":null,"abstract":"Maritime English is defined as the English language used by seafarers both at sea and in port and by individuals working in the shipping and shipbuilding industry. The teachers are required to make the students skillful and ready to work in maritime sectors once they graduate. The existing and relevant maritime English learning materials following STCW 2010 curriculum in Indonesia are still rare and limited. This study aims to conduct a need analysis of android and web-based Maritime English apps based on the students' perspectives. This study uses questionnaires shared and completed randomly by 318 students from different majors and at Sekolah Tinggi Ilmu Pelayaran (Maritime Higher Education Institute) Jakarta. The data is gathered and analyzed accordingly to create the essential concept of the MarEng apps design. The questionnaire result indicates that most of the participants need an ME learning platform in order for them to have better access to and to practice the required knowledge and skills. Explicit bilingual instructions and features like video, audio, and text are also preferred to be incorporated. It is suggested to start from the elementary level and cover the four skills, especially listening, speaking, and pronunciation. It is so suggested that the platform can be constructed in easy and fun UI/UX covering the required content.","PeriodicalId":42576,"journal":{"name":"Transactions on Maritime Science-ToMS","volume":"111 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80693656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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