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Tytuł:
The Impact of Family and Job Content on Swedish Seafarers’ Occupational Commitment – A Gendered Issue?
Autorzy:
Hult, C.
Österman, C.
Powiązania:
https://bibliotekanauki.pl/articles/116143.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Swedish Seafarers
job content
Crew Resource Management
Seafarers’ Occupational Commitment
women on board
gender
Gendered Issue
Maritime Labour Convention
Opis:
Ongoing research has indicated important effects on seafarers’ occupational commitment due to gender and family situation. In this study, these findings have been elaborated further by controlling for the effect of perceived work content. Statistical analyses were employed, using a survey material of Swedish seafarers collected from a national register in 2010. The results showed that the effect on occupational commitment of having children at home is strongly positive and statistically significant for women. However, the significance was dependent on the level of satisfaction with the job content. It was suggested that the seafaring occupation could be viewed as a cooping strategy, although only appropriate if the job content is agreeable. Another important family effect was, as expected, the positive effect of having a relative working, or having worked, at sea. This effect was, however, only significant for male seafarers in the age group below the early 40’s. It was concluded that this effect is mainly emotionally driven and not particularly influenced by the actual job content. The results further showed that working in the catering department comes with a strong negative effect on commitment to the seafaring occupation for women. This effect, however, lost its significance after control for job content. It was concluded that the effect of satisfaction with job content on occupational commitment is generally important, with the exception of women, without children, working in the catering department.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 1; 27-34
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The committed service crew – the impact of passenger proximity on organizational commitment and job satisfaction
Autorzy:
Sandberg, C.
Hult, C.
Österman, C.
Praetorius, G.
Powiązania:
https://bibliotekanauki.pl/articles/1841605.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
committed service crew
organizational commitment
job satisfaction
passenger
ship crews
Swedish Seafarers
International Social Survey Programme
Statistical Package Social Science
Opis:
The present study focuses on the pattern of organizational commitment and job satisfaction among seafarers working on passenger vessels, compared to those working on board other types of ships. The dependent variable in the study is organizational commitment. Work position, age and job satisfaction are used as independent variables. The question posed in this study is whether the pattern of organizational commitment and job satisfaction differ depending on the proximity to passengers. The material is based on a survey sent to a random sample of seafarers in the Swedish Transport Agency’s register of seafarers. It has been analyzed with descriptive statistics and multivariate regressions comparing the two categories of vessels. The results show that organizational commitment is higher on passenger vessels, while the effect of job satisfaction on organizational commitment is slightly higher for ships that do not carry passengers. For managers in the service department, the level of commitment is to a higher extent dependent on job satisfaction. Development and communication of career options and opportunities for the service crew is suggested as a way to enhance organizational commitment and job satisfaction among this group.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 595-600
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regularized Han-type Algorithms for Inconsistent Maritime Container Transportation Problems
Autorzy:
Carp, D.
Popa, C.
Şerban, C.
Powiązania:
https://bibliotekanauki.pl/articles/117319.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Algorithm
Regularized Han-Type Algorithms
Han-type Algorithms
Container
Maritime Container Transportation
Container Transport
Transportation System
mathematical model
Opis:
In this paper we analyse several ways to compute the weights from the Regularized Han (RH) algorithm, the regularized version of Han’s algorithm for approximating the least squares solutions of inconsistent (incompatible) systems of linear inequalities. We tested our approaches on a classical transportation problem, aiming to provide a cost optimized solution to real world transportation problems, which often are unbalanced and inconsistent.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 579-583
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the future of maritime transport – discussing terminology and timeframes
Autorzy:
Hult, C.
Praetorius, G.
Sandberg, C.
Powiązania:
https://bibliotekanauki.pl/articles/117279.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime transport
future of shipping
shipping
maritime Aautonomous surface ships (MASS)
autonomous ship
smart ship
intelligent ship
unmanned ship
Opis:
This paper offers an analytical discussion on the terminology and timeframes related to the future of shipping. The discussion is based on issues that have surfaced within the Swedish research project Autonomy and responsibility. The paper argues that the concept ‘autonomous ships’ has become an indicator of that seafarers soon will become obsolete – which may have negative consequences for the supply of maritime competence in coming years - and that the proper definition of the term ‘autonomous’ describes something that will never apply to a ship. Ships can be given the possibility, but hardly the full right or condition of self-government. It is argued that ‘smart ships’, or perhaps ‘intelligent ships’, are more appropriate, since these terms describe the current and future state of technology without predicting how humans will prefer to use it. The estimated timeframes for implementation of unmanned ships suggest no threat to the seafaring occupation for coming generation. The content of the occupation will of course change due to the phase of implementation of degree of digitalization, but there will always be a need for maritime knowledge and understanding.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 2; 269-273
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A PPP baseline approach for bridge passing
Autorzy:
Lass, C.
Powiązania:
https://bibliotekanauki.pl/articles/24201435.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
inland waterways
precise point positioning
Global Navigation Satellite System
multisensor data fusion
multi-antenna
navigation and timing
inertial navigation system
rate of turn
Opis:
Global Navigation Satellite Systems (GNSS) are increasingly used as the main source of Positioning, Navigation and Timing (PNT) information for inland water navigation. In order to enable automated driving and facilitate driver assistant functions, it becomes of crucial importance to ensure high reliability and accuracy of the GNSS-based navigation solution, especially in challenging environments. One challenging phase of inland waterway navigation is bridge passing which leads to non-line-of-sight (NLOS) effects such as multipath and loss of tracking. This work presents a Precise Point Positioning (PPP) based algorithm in a two-antenna system where one antenna is at the bow and the other is at the stern. Additionally, gyroscope data from an IMU is used. In contrast to a separated position calculation of the two antennas, only one antenna position is estimated and the other is derived from the baseline between the antennas. This allows for accurate positioning even if one antenna does not receive any GNSS measurements. The presented scheme is evaluated using real measurement data from an inland water scenario with multiple bridges. In comparison with a standard PPP scheme as well as an RTK algorithm, the presented approach shows clear advantages in challenging scenarios.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 33--40
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perceived quality of safety training on board ship – the Swedish case
Autorzy:
Hult, C.
Powiązania:
https://bibliotekanauki.pl/articles/24201474.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Opis:
This is a statistic study on the perceived quality of safety training. The study is based on respondents from the Swedish register of seafarers. The results show that the experience of safety training is generally positive among the seafarers. The level of positivity is influenced by personal circumstances (such as onboard position and age) and by external factors in the work environment (such as ship type, trade area and flag state). However, the effect of onboard position diminishes when age and external factors are controlled for. In this situation, only the positive effects for cabin crew and age remain with strength and significance. Most ship types show strong positive effect, except for road ferries and vessels for max 12 passengers. When it comes to trade area it is only sheltered trade that shows a significant positive effect. Moreover, a homeland flag in the stern leads to a significant increase in the perceived quality of the safety training. These findings are discussed in the concluding part of the paper.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 115--119
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maritime resource management: current training approaches and potential improvements
Autorzy:
Praetorius, G.
Hult, C.
Österman, C.
Powiązania:
https://bibliotekanauki.pl/articles/1841612.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Resource Management
Non-Technical Skills
Bridge Resource Management
Engine Room Resource Management
NTS Training
STCW
Crew Resource Management
Resilience Engineering
Opis:
Shipping can be regarded as a high-risk domain with a large complexity in operations. Accidents and incidents may involve serious danger for seafarers and passengers, as well as for the environment and society at large. Education and training play a crucial role for the safe conduct of ships. While technical skills have been at the core of a mariner’s skillset, non-technical skills (NTS) have become increasingly important for the safe conduct of merchant vessels. Therefore, knowledge in NTS has become a mandatory requirement for officers serving on board. This knowledge is normally taught in courses labelled Bridge Resource Management, Engine room Resource Management, or Maritime Resource Management. While the number of courses in the industry is steadily increasing, research focused on NTS training and its relation to safety in operation seems sparse. This review article aims to provide an overview of scientific literature focused on training NTS for maritime operations published between 2000 and 2018. Based on the reviewed literature the article identifies and discusses current research gaps, trends and potential future directions to improve maritime resource management training.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 573-584
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A web-oriented architecture for deploying multiple unmanned vehicles as a service
Autorzy:
Au, C. N.
Delea, C.
Schneider, J.
Oeffner, J.
Jahn, C.
Powiązania:
https://bibliotekanauki.pl/articles/1841554.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Unmanned Vehicles
web-oriented architecture
multiple unmanned vehicles
environmental shipping monitoring center
robot operating system
risk-aware autonomous port inspection drone
transport layer security
datagram transport layer security
Opis:
Providing a robotic-assisted service in scenarios involving multiple Unmanned Vehicles (UVs) in possible beyond-visual-Line-Of-Sight (LoS) operations, safety and security are critical concerns. We develop a web-oriented, human-in-the-loop infrastructure to explore how the service provider can secure their system, enforce instant access control over dynamic operator-robot connections, and ensure the integrity, availability, and traceability of communicated data. Our proposed minimal viable solution requires an authentication server to verify user identity, a back server with a database to handle user requests and state-transition events, and a RabbitMQ (RMQ) server to trace the origin of data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 1; 155-164
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maritime students’ use and perspectives of cloud-based desktop simulators: CSCL and implications for educational design
Autorzy:
Gyldensten, W.
Wiig, A. C.
Sellberg, C.
Powiązania:
https://bibliotekanauki.pl/articles/24201443.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime education and training
ethnographic study
navigational simulator
collaborative learning
maritime navigation cloud
students approaches to learning
maritime students
new learning methods
Opis:
This study investigates the challenges and opportunities of using cloud-based simulators for training in maritime education and training (MET). The aim is to map bachelor students’ use and perspectives to inform educational design when implementing cloud simulation into the curricula. This study uses an ethnographic design approach in the tradition of Computer Supported Collaborative Learning (CSCL) and draws on video-recorded exercises and interviews (n=22) from 1st and 3rd-class maritime bachelor’s students engaged in navigation exercises on cloud simulation. The findings suggest that individual training with cloud-based simulators in MET can enhance the repetition of skills necessary for better performance in a full-mission simulator with current technology and rather straightforward instructional designs. However, the findings also emphasise that simulator exercises need to be more engaging for students in order to provide a meaningful learning experience. Hence, simulator software needs to provide the means for students to collaborate during exercises, and feedback provided by the system needs to be carefully aligned with the student’s previous knowledge in order to provide adequate scaffolding.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 2; 315--321
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Galileo Integrity Concept and its Applications to the Maritime Sector
Autorzy:
Hernández, C.
Catalán, C.
Martínez, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/116833.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Global Navigation Satellite System (GNSS)
Galileo
Maritime Sector
Signal-In-Space Accuracy (SISA)
marine navigation
satellite based augmentation system (SBAS)
Galileo Integrity
Signal In Space Monitoring Accuracy (SISMA)
Opis:
Galileo is the European Global Navigation Satellite System, under civilian control. Galileo will provide their users with highly accurate global positioning services and their associated integrity information. The main objective of this article is to explain the basis of the Galileo integrity concept, which is fundamental for safety-critical applications such as maritime navigation. A review of the expected performance that will be achieved has been also included.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 287-291
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategies and Measures to Improve the Work Environment of Service Crew on Board Swedish Passenger Vessels
Autorzy:
Praetorius, G. P.
Österman, C.
Hult, C.
Powiązania:
https://bibliotekanauki.pl/articles/117608.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
passenger vessels
service crew
Swedish vessels
Swedish maritime cluster
Swedish passenger vessels
weafarers
Swedish
Rapid Upper Limb Assessment (RULA)
seafarers' work
Opis:
This paper presents findings from three workshops focused on the physical, organizational and social work environment of service crew working on board Swedish passenger vessels. The first workshop aimed to identify underlying causes of long-term sick leave among employees in the service department, and potential measures that can be taken to reduce ill-health. The second and third workshop explored knowledge of available methods to identify occupational safety and health risks, and suggest health-promotion strategies at individual, team and company levels. A total of 58 persons from the Swedish maritime cluster participated in the workshops. During the workshops, open and structured brainstorming was used to create affinity diagrams to systematically summarize the identified causes, risks and strategies. Although the results presented in this article stem from a research project focused on Swedish passenger vessels, many of the findings may be transferable to an international maritime setting towards a deeper understanding of seafarers’ work environment and working conditions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 587-595
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using GIS to obtain Celestial fix under the framework of an ECDIS System
Autorzy:
Tsou, M. C.
Powiązania:
https://bibliotekanauki.pl/articles/1841602.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ECDIS
Geographic Information System
GIS
celestial fix
circle of position
Intercept Method
dead reckoning
two-body fix
astronavigation
Opis:
This study proposes a simple method for obtaining a celestial fix, developed within a Geographic Information System (GIS) under the framework of an ECDIS system. The underlying principle is dependent on the most fundamental theory in celestial navigation; the circle of position (COP) of the celestial bodies is plotted to find the fix. Through the spatial data processing, analysis, and visualization capabilities available in GIS, a celestial fix may be obtained directly from plotting. This eliminates the limitations associated with finding the fix manually using a paper map, but also avoids the cumbersome work and inaccuracy of the traditional Intercept Method (IM) or the complicated, and often obscured, computation involved in numerical methods. The proposed method is simple and accurate, and it applies to problems involving two or more celestial bodies and high-altitude observations. It provides a reference for the development of a celestial positioning module in an ECDIS system, and could also be integrated into an educational program on electronic celestial navigation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 675-680
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The CAN Bus in the Maritime Environment – Technical Overview and Cybersecurity Vulnerabilities
Autorzy:
Kessler, G. C.
Powiązania:
https://bibliotekanauki.pl/articles/2063969.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
controller area network
national marine electronics association
cyber security
maritime communication standard
security vulnerabilities
CAN Bus
maritime environment
Opis:
The Controller Area Network (CAN) bus standard was developed in the 1980s and is in widespread use in automobile, vehicular, aviation, and other networks. The CAN bus was introduced in the maritime environment with the adoption of the National Marine Electronics Association (NMEA) 2000 standard in the late-1990s. Many papers have been written about the CAN bus protocols and security vulnerabilities but there is sparse literature about use of the CAN bus in the maritime environment. Part I of this paper is a technical overview, describing CAN bus standards and operation, with particular attention to its use with the NMEA 2000 maritime communications standard. Part II of this paper describes security vulnerabilities in terms of loss of confidentiality, integrity, or availability of information (such as eavesdropping, denial-of-service, and spoofing), and mitigations specific to the maritime environment.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 531--540
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Algorithm for Interpolating Ship Motion Vectors
Autorzy:
Hu, Q.
Cai, F.
Yang, C.
Shi, C.
Powiązania:
https://bibliotekanauki.pl/articles/116863.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Motion
Ship Motion Vector
Automatic Identification System (AIS)
AIS Dynamic Information
Algorithm, Ship's Acceleration
AIS Data
Vector Function
Opis:
Interpolation of ship motion vectors is able to be used for estimating the lost ship AIS dynamic information, which is important for replaying marine accidents and for analysing marine traffic data. The previous methods can only interpolate ship’s position, while not including ship's course and speed. In this paper, vector function is used to express the relationship between the ship’s time and space coordinates, and the tangent of the vector function and its change rate are able to express physical characteristics of ship’s course, speed and acceleration. The given AIS dynamic information can be applied to calculate the parameters of ship's vector function and then the interpolation model for ship motion vectors is developed to estimate the lost ship dynamic information at any given moment. Experiment results show that the ship motion vector function is able to depict the characteristics of ship motions accurately and the model can estimate not only the ship’s position but also ship’s course and speed at any given moment with limited differences.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 35-40
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparing for an unknown future. Autonomous ships versus position of the Maritime English/IMO Standard Marine Communication Phrases(ME / IMO SMCPs) in maritime practice. How are we going to solve this problem?
Autorzy:
Chirea-Ungureanu, C.
Powiązania:
https://bibliotekanauki.pl/articles/1841559.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
autonomous vessels
maritime English
autonomous ship
maritime practice
Maritime Education and Training
robotics business reviev
MUNIN project
Opis:
The reason for modern Maritime Education and Training (MET) is to provide students with the necessary skills, and knowledge to be successful in the future outside of school. Futuristic teachers need to help students become life-long learners who are ready, organized, and equipped for new challenges. This paper tries to find position of Maritime English/IMO Standard Marine Communication Phrases (ME/ IMO SMCPs) versus autonomous ships, to facilitate developments in a safe predictable environment and for ensuring safe navigation in the future, also in a mixed traffic situation where both manned and unmanned ships will be sailing on the same routes and ports. In its attempts, this paper tries to analyse the Obstacles and Disadvantages when no crew is required on board; this could jeopardize the statute of seafarers, and not every aspect of unmanned shipping is all roses. The work is much future oriented and requires challenging conventional concepts and operations.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 1; 111-116
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł

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