Departure Of Ships Research Articles

Efficient multi-party PSI and its application in port management

Private Set Intersection (PSI) technology is a cryptographic tool that allows the parties holding private data to determine the intersection of sets in a joint computation without revealing any additional privacy information. As a critical component of secure multi-party computation, this technology has been widely used in the security domain of artificial intelligence and data mining. With the emergence of the era of multi-source data sharing, protocols for private set intersection computation applicable to multiple participants have also emerged. However, the performance of existing multi-party private set intersection (MPSI) protocols is suboptimal when some participants use devices with limited communication or computational capabilities, such as mobile devices. To overcome the above issues, we design a cloud-aided multi-party private set intersection protocol (Cloud-Aided-MPSI) based on oblivious programmable pseudorandom functions (OPPRF) and oblivious key–value stores (OKVS). Due to the protocol efficiently outsourcing partial computational and communication tasks to cloud servers, our performance has been further enhanced compared to existing work. Through the Cloud-Aided-MPSI protocol, we propose a port scheduling protocol for coordinated management scenarios of ships arriving and departing from ports. The protocol effectively addresses the privacy protection concerns of port management when scheduling the arrival and departure of ships. We analyze the performance of this protocol.

WAYS OF INCREASING THE RELIABILITY OF CONTAINER TRANSPORTATION IN INTERNATIONAL COMMUNICATION IN CONDITIONS OF WAR

The article proposes an improved automated technology for transporting goods by rail in international traffic, taking into account the likelihood of delays in ship departure from the seaport, resulting in additional costs in the form of penalty sanctions. It is known that the majority of goods arriving at seaports for further transportation are in containers. Therefore, in this work we consider and improve the part of the intermodal transportation route associated with raand seaports. To achieve this, it is necessary to adopt a systematic approach, which will allow describing all events occurring during the organization of such a complex process within one probabilistic framework and also consider the operation of each type of transport, especially in conditions of war where such probabilistic events become increasingly prevalent.In this research, the objective function of the intermodal transportation system is formed when interacting with railway stations and ports as the total specific costs of container transportation, taking into account the throughput capacity of the transportation infrastructure and considering the probability of the risk of delayed ship departure due to the arrival delay of the necessary batch of containers.Implementing this technology in automated workplaces of operational personnel will reduce the impact of the «human factor» on decision-making during the organization of rail transportation and enable quick response in an emergency, thereby enhancing the reliability of transportation and the probability of their execution within the planned time frame, especially in wartime conditions.The implementation of this model has shown that the cost of transporting one container to the port by container train from the terminal will reduce specific expenses by approximately 3 % compared to the existing technology. The optimal accumulation time for containers at terminal stations will be 5 and 5.6 hours respectively.

Analysis of the Inaportnet System That Affects the Ship Service of PT Kartika Samudra Adijaya at the Port of Samarinda

This study aims to determine the implementation of the inaportnet system that affects ship services at PT Kartika Samudra Adijaya at Samarinda Port. The method used in this study is qualitative with a descriptive approach. Data analysis is a qualitative approach to primary data through observation, documentation and secondary data in statutory studies, books or literature related to vehicle loading systems on board. Based on research on the preparation of ship arrival, during the ship's arrival in the port area, preparation for ship departure, and when the ship departs, It can be concluded that the new inaportnet system was only implemented in October 2022. In adjusting to the new system, several obstacles are still found, such as the lack of guidance of KSOP officers in using the new system and the lack of socialisation from the city authorities to service users (agents). The efforts include holding regular training sessions on the flow of the internet system for officers and service users.

Proses Penanganan Clearance Out Kapal Ternak Berbendera Asing Dengan Inaportnet Oleh Pt. Pelayaran Semesta Sejahtera Lestari Belawan

Pelayaran Semesta Sejahtera Lestari Belawan is a company that operates as a shipping agency (ship agency) which provides domestic and international services. The process of handling ship departure (clearance out) at PT. The Semesta Sejahtera Lestari Belawan voyage starts when the ship has finished carrying out activities at the port, the agent makes another request for ship departure or Clearance Out. The Clearance Out process is a maximum of six hours before the ship leaves, the agent submits a ship out service in the Inaportnet system. To issue an SPB (Sailing Approval Letter), the agent must complete all documents and costs which are the agent's responsibility. For the issuance of an SPK (Work Order), guide the ship out no later than one hour after the SPB (Sailing Approval Letter) is issued. After processing the SPB (Sailing Approval Letter) is complete, the agent will take the ship documents and SIB (Sailing Permit) at KSOP. PT Pelayaran Semesta Sejahtera Lestari is a company that operates in the service and agency services sector, in other words a representative of the general agent/principle to take care of ship documents and take care of all ship needs that are needed when the ship is at the port. To obtain data, the author used field research and library research methods.

Analisis Proses Penanganan Kapal Penumpang terhadap Ketepatan Waktu Jadwal Operasional Kapal

This research aims to analyze the process of handling passenger ships regarding the timeliness of ship operational schedules located at PT. Indonesian National Shipping Tanjung Priok Branch. The method used is a qualitative descriptive method with primary and secondary data where data collection uses observation and interviews to determine the population, sample, data collection, data processing and data compilation. The results of the research can be concluded that the estimated and actual schedule for ship arrival and departure does not match, the average time required for ship arrival is 01:43 (one hour and forty-three minutes) and for ship departure is 00:54 (fifty-four minutes). ) and the percentage of ships on schedule is only 12% or 2 times out of 17 operations. Delays are caused by weather factors, machine repairs, clearance processes and poor internet connections. Therefore, coordination between ship operations and ship crew as well as internet stability is a solution to the timeliness of ship operational schedules. Keywords: Passenger Ships, Punctuality, Ship Handling

Implementation of Maritime Environmental Pollution Prevention Policy at The Manado Harbormaster and Port Authority Office

This research aims to describe, analyze, and interpret the evaluation of the implementation of Minister of Transportation Regulation Number 29 of 2014 concerning Prevention of Maritime Environmental Pollution at the Manado Harbormaster and Port Authority (KSOP) office. This research uses qualitative methods, because qualitative research places more emphasis on the process of searching for meaning, revealing the meaning behind the phenomena that appear in the research, with the aim that the problems studied are more comprehensive, in-depth, natural, and real, and without much interference from researchers to the facts that emerge. The results of the research reveal that there are several ships that repeatedly apply for temporary pollution certificates. According to regulations or rules, it is not justified to extend pollution certificates repeatedly, but this is done based on aspects of social and economic impacts which if not done will result in delays. the ship's departure because it cannot be given a Sailing Approval Letter (SPB) if the ship does not have a temporary or permanent pollution certificate. This of course creates losses for the ship owner and will have a social impact on everyone involved on the ship, for example, the ship's crew. For this reason, an extension of the temporary prevention certificate is given with various other considerations, both administrative and technical, as well as providing advice and suggestions to the ship owner to immediately complete the lack of documents that must be fulfilled to obtain a permanent prevention certificate.

Pelaksanaan Tugas Syahbandar di Kantor Kesyahbandaran dan Otoritas Kelas III Pelabuhan Sungai Duku Pekanbaru

This research aims to find out about the implementation of the harbormaster's duties at the Class III Harbormaster and Authority Office of Sungai Duku Port, Pekanbaru. The research method used is descriptive qualitative, uses interviews, observations and is supplemented by literature study. In this research, the author uses four indicators to describe the success or failure of the harbor master in carrying out his duties, namely communication, resources, disposition and bureaucratic structure indicator's. The results of this research are that the implementation hasn't been carried out optimally. This is because the communication between Harbormaster's Office officers and passengers is limited to checking passenger tickets and providing ship departure schedules. Then, direct physical feasibility tests of ships cannot be carried out thoroughly, due to a lack of human resources. Furthermore, there is a lack of awareness among officers regarding the implementation of all their obligations. In terms of, the bureaucratic structure indicator's has been, actually formed as it should be, but in practice, even though the tasks have been carried out in accordance with the respective division of tasks, but in fact the implementation still not effective and efficient.

Sistem Informasi Manajemen dan Loyalitas Pengguna Jasa pada Industri Maritim di Indonesia

The purpose of this study was to determine the contribution of ship agency service quality and management information systems to service user loyalty through internal control mediation at Tanjung Priok Port. Some of the problems found, among others, are still not optimal service quality and management information systems provided by the company to customers. In addition, internal control has not been carried out optimally and ship departure schedules are sometimes not as promised by the company. This research was conducted at PT Umbu Perdana Maritim as a new agency company located in the Tanjung Priok Port area. The research population is the customers of PT Umbu Perdana Maritim, for a sample of 60 active customers which is called a saturated sample. For data processing carried out in this study, using the path analysis method. The results showed that the quality of ship agency services did not have a direct effect on service user loyalty through internal control, and the management information system did not have a direct effect on service user loyalty through internal control.

Effect of Manual System in Handling Documents Clearance in and Out Ship Service, Loading and Unloading Ship agency by PT. Bahari Eka Nusantara Sangkulirang branch, East Kalimantan

Bulk ship handling activities cannot be separated from the ship handling service plan, namely the arrival and departure of ships. Before the process of arrival and departure of the ship, several activities are carried out which are determined in advance by the shipping company together with the port manager and must be conveyed to the ship's side. The loading and unloading of ships coming and going, loading and unloading coal, requesting ship needs, handling clearance in and clearance out documents through Syahbandar manually whose service hours are limited, starting from 8 o'clock to 10 pm due to the shahbandar class which is still classified as KUPP class III, and also greatly limiting the movement and service of the ship service served. The purpose of this study is to find out how much influence the management of clearance documents in and out becomes longer, limited operating hours and delays in the loading and unloading process of ships, which are agentized by PT. Bahari Eka Nusantara Sangkulirang Branch, East Kalimantan. The approach method used is a descriptive quantitative method, while the data collection technique uses questionnaires, documentation, observations, and literature studies so that the influence / not between the manual clearance in and out system can be found on the service of the ship being inundated. The results of this study show that there is an influence between the manual clearance in and out system on the service of the ship being inundated.

Evaluation Of The Scheduling Of Padangbai-Lembar Ships During The Pandemic Period In Bali Province

The Padangbai Ferry Port is located in Padangbai Village, Karangasem Regency. This port serves crossings between districts/cities, namely the Padangbai-Nusa Penida cross and between provinces, namely the Padangbai-Lembar cross. As a port that operates 24 hours with 13 trips/day, the current schedule arrangement is very important. Based on the results of a survey conducted by the author, there is a mismatch of the schedule compiled by the Land Transportation Management Center (BPTD) with its implementation, namely the ship's departure time with the existing schedule is not appropriate because the ship is waiting for a full load to depart. To be able to maximize the ship's load, it needs to be supported by a ship schedule that is in accordance with the implementation of the current health protocol in order to create a balance between the number of ships and the existing shipload. Data collection was carried out using the observation method. The data that must be collected are passenger and vehicle productivity, ship characteristics and ship operational time. Institutional methods and library data are taken from the Regional BPTD. XII Province of Bali & NTB. The analysis is carried out by evaluating schedules that are not in accordance with field conditions, and making an appropriate schedule so that no ships still have to wait for passenger and vehicle loads.

Influence of physiological, psychological and environmental factors on passenger ship seafarer fatigue in real navigation environment

The occurrence of passenger ship accidents can easily cause a large number of casualties. Seafarers of deck department on passenger ships are prone to fatigue in complex navigation environment and work tasks, thus causing water traffic accidents. To investigate the relationship between physiological, psychological, environmental factors and fatigue, electrocardiogram (ECG), electroencephalogram (EEG) and subjective fatigue (KSS) data of 24 seafarers were collected in real navigation environment. The time domain characteristics MRR, SDNN, RMSSD and frequency domain characteristics LF, HF, LF/HF were extracted from ECG. Welch’s method was used to extract the power in different EEG sub-bands from a one-channel EEG acquisition headset. By analyzing the influential factors of seafarer fatigue through significance analysis and correlation analysis, it is indicated that the perceived stress, safety behavior, health condition and the number of passengers can have an impact on fatigue. Different waters and different time will also affect the seafarer’s physiological fatigue. In addition, the ordinal logistic regression model based on multi-source physiological signals shows that age, ECG indexes, EEG indexes and ship departure interval can be used to predict the fatigue levels of seafarers with an accuracy of 81.13 %.

PERANCANGAN SISTEM INFORMASI TAMBAT LABUH KAPAL DI PELABUHAN PERIKANAN NUSANTARA KARANGANTU

The purpose of this study is to make it easier to access data and make reports needed by those who need it. The method used in this study is the waterfall model, which begins with research on the current system, design, coding, and maintenance of archive management systems so that archive management information and archive management reports can run quickly, precisely and accurately. The results obtained from this study are regarding the design of a mooring information system that is integrated with a database to support the process of managing ship arrivals and departures easily, quickly, and accurately. In making a ship's arrival and departure certificate, it can be documented into a database, so that it can make it easier if you want to report ship arrival and departure data. The conclusion that can be drawn from this information system is that archive management can be well documented because it is equipped with a database, storage has become a single unit, can reduce redundancy or duplicate data, can display required mooring management information so that it can facilitate officers in making arrival management reports. and ship departure.

Sediment Resuspension Distribution Modelling Using a Ship Handling Simulation along with the MIKE 3 Application

The environmental effects of ship propellers were not even close to fully examined before the current massive ships were introduced to sea trade. Larger ships, result in greater length, beam, draft and propulsion power. Of concern here is the under-keel clearance (UKC) and applied power, the most important parameters causing sea bottom sediment resuspension and, consequently, the transport and deposition of washed sediments. The problems are multifarious: shorelines could be contaminated with heavy metals, petroleum hydrocarbons and other organic chemicals, which are sometimes buried deep in the sediment bed. The effects of resuspension on marine life have been well documented by marine biologists. Further, a ship passing through a flow field may have a significant hydrodynamic effect on the shipping channel: waves generated by moving vessels can accelerate shoreline erosion; erosion around quay piles have a negative impact on sea flora. Waves can also affect other manoeuvring vessels or ships at berth. Available empirical models are applicable for a steady state condition, addressing velocity and, consequently, shears at the sea bottom for defined UKC and states of applied power. The idea here is to calculate material resuspension dynamically in the water column based on realistic manoeuvring conditions, which can be a matter of some complexity. During a manoeuvre, the pilot must bring the ship into or out of the harbour in the safest possible way, operating the telegraph, rudder, thrusters and possibly tugs, and also co-ordinating the work of the linesmen. The jet speed powering the vessel is not only a function of the speed of the propeller, but also of the present speed of the ship, which has an effect on the propeller’s constantly changing torque. Additionally, the bathymetry is constantly changing, and the streamlines hit not only the seabed, but also the bank and other structures of the harbour basin. The resuspended material remains in the column long after the ship has finished manoeuvring, moving slowly through the entire water column and being transported not only by the remaining streamlines of the ship but also by general currents. Realistic manoeuvring parameters can be obtained from real-time simulations with a real crew using state-of-the-art Full Mission Bridge Simulators (FMBS); eddies and the like contribute to the distribution and material resuspension and can be calculated by applying numerical modelling. In this paper, a container ship departure manoeuvre is simulated dynamically using Wartsila FMBS obtained data, which are postprocessed and coupled with the MIKE 3 FM hydrodynamic modelling application to which we add the precise port of Koper bathymetry to gain ship propeller spatial jet velocity distribution in specific time domains. Obtained jet velocity distribution is further coupled with the MIKE 3 MT particle tracking application to visualize total resuspended sediment transport patterns, etc. Container ships were selected to amplify the urgency of this phenomenon; they are the most intrusive in terms of resuspending and scouring the seabed given their powerful engines and larger propellers. Passenger ships could have been used, car carriers, or even tankers; but the fear among scientists is that the issue will not be taken seriously enough by certain stakeholders.

Aktivitas Port Clearance Pengurusan Dokumen PT. Pelayaran Sumatra Timur Indonesia

A procurement for the smooth arrival and departure of ships (port clearance) must be in accordance with existing procedures so that ships can leave the port and arrive safely at the destination port. The purpose of this study is to determine activities related to the clearance of document management by PT. Pelayaran Sumatra Timur Indonesia. This research is a type of qualitative descriptive research. In the research method, there are two types of data in this study, namely primary data and secondary data. There are 3 methods of obtaining the data needed during the research time including observation methods, interview methods and documentation methods. The results showed that the clearance activity of PT. East Sumatra Indonesia shipping there are several procedures for handling documents on ships, namely, checking shipping orders, checking cargo manifests or loading lists and checking cargo shipping lists or boot notes and other important ship requirements. The document clearance procedure is divided into two, namely clearance in and clearance out. The clearance procedure is the process of obtaining permits for ships that will arrive at the port to related agencies. Clearance out the procedure on PT. East Sumatra Indonesia shipping includes after the ship has finished carrying out activities at the port and will again sail out of the port area, the agent re-requests the ship's departure or clearance.

Berth Allocation Considering Multiple Quays: A Practical Approach Using Cuckoo Search Optimization

Maritime container terminals (MCTs) play a fundamental role in international maritime trade, handling inbound, outbound, and transshipped containers. The increasing number of ships and containers creates several challenges to MCTs, such as congestion, long waiting times before ships dock, delayed departures, and high service costs. The berth allocation problem (BAP) concerns allocating berthing positions to arriving ships to reduce total service cost, waiting times, and delays in vessels’ departures. In this work, we extend the study of continuous BAP, which considers a single quay (straight line) for berthing ships, to multiple quays, as found in many ports around the globe. Multi-Quay BAP (MQ-BAP) adds the additional dimension of assigning a preferred quay to each arriving ship, rather than just specifying the berthing position and time. In this study, we address MQ-BAP with the objective of minimizing the total service cost, which includes minimizing the waiting times and delays in the departure of ships. MQ-BAP is first formulated as a mixed-integer linear problem and then solved using the cuckoo search algorithm (CSA), a computational intelligence (CI)-based approach. In addition, the exact mixed-integer linear programming (MILP) method, two other state-of-the-art metaheuristic approaches, namely the genetic algorithm (GA) and particle swarm optimization (PSO), as well as a first come first serve (FCFS) approach, are also implemented for comparison purposes. Several experiments are conducted using both randomly generated and real data from the Port of Limassol, Cyprus, which has five quays serving commercial vessel traffic. The comparative analysis and experimental results show that the CSA-based method achieves the best overall results in affordable time as compared to the other CI-based methods, for all considered scenarios.

Mathematical Optimization of Carbon Storage and Transport Problem for Carbon Capture, Use, and Storage Chain

The greenhouse effect caused by carbon dioxide (CO2) emissions has forced the shipping industry to actively reduce the amount of CO2 emissions emitted directly into the atmosphere over the past few years. Carbon capture, utilization, and storage (CCUS) is one of the main technological methods for reducing the amount of CO2 emissions emitted directly into the atmosphere. CO2 transport, i.e., shipping CO2 to permanent or temporary storage sites, is a critical intermediate step in the CCUS chain. This study formulates a mixed-integer programming model for a carbon storage and transport problem in the CCUS chain to optimally determine ship allocation, ship departure scheduling, and CO2 storage and transport. Taking advantage of the structure of the problem, we transform the mixed-integer programming model into a simpler model that can be computed efficiently. To evaluate the performance of the simpler model, numerous computational experiments are conducted. The results show that all small-scale instances (each with 10 power plants) and medium-scale instances (each with 30 power plants) can be solved optimality by Gurobi within 14.33 s. For large-scale instances with 60 and 65 power plants, feasible solutions with average gap values of 0.06% and 6.93% can be obtained by Gurobi within one hour, which indicates that the proposed methodology can be efficiently applied to practical problems. In addition, important parameters, including the unit fuel price, the time-charter cost, and the ship sailing speed, are examined in sensitivity analyses to investigate the impacts of these factors on operations decisions. In summary, a lower fuel price, a lower charter cost, or a higher ship sailing speed can increase the profit of the CCUS chain.

The Association between Vessel Departures and Air Pollution in Helsinki Port Area 2016–2021

European ports are struggling to install enough shore power connections to follow the European Commission initiative, which insists ships that lie alongside to be plugged in and have their auxiliary engines off in EU ports by 2030. The port of Helsinki is one of the busiest passenger ports in the world handling on average more than 10 million international passengers per year. As passenger ships consume more fuel than other vessel types, the shore power regulation poses additional challenges for the port of Helsinki. Passenger ferry and cruise ship terminals are in the middle of the city meaning that their air emissions carry a public health burden in the urban areas. Using port arrivals and departures combined with the EU Monitoring, Reporting and Verifying (MRV), this study estimates that 75–80% of the fuel combusted by ship auxiliary engines falls under the upcoming regulation. However, using statistical methods to find the association and effects between vessel movements and port air quality measurements, ship departures were found to have noticeable increases in the hourly mean NO2 concentration measured at the port terminals. This is most likely caused by starting cold main engines for departure and will not be solved by connecting ships to shore power.

Online Quality of Services of Ship Procurement License at Kesyhbandaran Utama Tanjung Perak Surabaya Office

One of the efforts to create optimal services quickly and cheaply is by providing information technology for integrated exchange of data and information. Tanjung Perak Surabaya Main Harbormaster Office implements an online service system in accordance with the Regulation of the Minister of Transportation of the Republic of Indonesia PM Number 154 of 2015 concerning Online Syahbandar Approval Letter Services, including the service of Ship Motion Approval Letters at the Port. The government through the Ministry of Transportation developed Inaportnet, which is an internet-based electronic single service system. The Inportnet concept is applied as a ship service system in terms of ports in the activities of arrival and departure of ships as well as plans for loading and unloading activities that can be carried out effectively and efficiently. The purpose of this research is to describe and analyze the Quality of Service for Ship Motion Permit Online at the Tanjung Perak Surabaya Main Harbormaster Office using the theory of electronic service quality by Ribbink et. al (2004). This research method is descriptive research with a qualitative approach, data collection is done by interview, observation, and documentation techniques. The results obtained are then collected, reduced, presented, and conclusions are drawn. The results of this study indicate that the Quality of Service for Ship Motion Permits Online at the Tanjung Perak Surabaya Main Harbormaster Office shows that service quality is not optimal. It is said that it is not optimal because there are dimensions that do not meet the needs of service users, namely: there is no complaints and suggestions menu in the Inaportnet application, there is no data correction menu if an error occurs in the data input process so that service users have to process data input repeatedly, of course impede the work of shipping agents, especially in the process of applying for ship operating permits online.

An INS-aided MASS autonomous navigation algorithm considering virtual motion constraints and the leeway and drift angle

Autonomous navigation is one of the critical enabling technologies in developing MASS or intelligent ships. This study proposes an autonomous navigation algorithm with INS-aided shipborne GNSS. The proposed algorithm constructs the ship's virtual motion attitude by considering the leeway and drift angle, and takes into account the one-dimensional speed constraints in the virtual ship body reference frame. This approach addresses the issue that the conventional INS and shipborne GNSS integrated navigation scheme can utilize the three-dimensional position information only, without considering the measurement update from the one-dimensional speed obtained by shipborne GNSS. The algorithm is verified by actual ship departure and cruising experiments in natural marine environments. The experimental results show that the proposed algorithm has a higher accuracy than the conventional algorithm when the GNSS speed and position information are available. In the scenario when the GNSS position information is temporarily lost, the proposed algorithm can continue to derive relatively reliable navigation parameters for the safe navigation of ships with only one-dimensional speed measurement.

Demographic characteristics with compliance on the implementation of health protocol on passenger ship

To analyse the relationship of demographic characteristics with coronavirus disease-2019 protocol compliance among ship passengers. The descriptive, correlational, cross-sectional study was conducted in May 2022 at the harbour in East Java, Indonesia, after approval from the ethics review committee of Universitas Airlangga, Indonesia, and comprised individuals of either gender aged 18-65 years who had a passenger ship departure ticket and were able to communicate well in the Indonesian language. Data related to demographic characteristics and coronavirus disease-2019 standard protocol compliance. Data was analysed using SPSS 25. Of the 157 subjects, 71(45.2%) were males, 86(54.8%) were females, 68(43.3%) were aged 26-45 years, 79(50.2%) had studied up to the bachelor's level,106(66.2%) were employees, 89(56.7%) had earnings below the provincial standard, and 116(73.9%) were married. Health protocol compliance at the harbour had a significant correlation with gender, age, education, occupation and income (p<0.05). The factors related to the compliance of the coronavirus disease-2019 protocol at the harbour were gender, age, education, occupation and income.