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Tytuł:
Research on capacity of mixed vessels traffic flow based on vessel-following theory
Autorzy:
Zhao, C.
Yan, H.
Zhou, G.
Liu, T.
Powiązania:
https://bibliotekanauki.pl/articles/2211979.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
vessel traffic flow
vessel-following theory
vessel traffic
vessel-following sequence
traffic characteristics
follow theoretical analysis diagram
maritime traffic engineering
traffic flow theory
Opis:
In order to study the characteristics of mixed vessel traffic flow, based on classical head distance model and probability analysis, by studying the combination time head way of different vessel-following sequences, the capacity model of mixed vessels traffic flow was established. Through analyzing two representative types of vessels, research results indicate that the capacity of mixed traffic increase with the traffic flow speed in a certain speed range, but the increasing trend slow down. The closer length and inertial stopping distance of different kind vessels are, the more capacity of mixed traffic increases. And the influence of reaction time on the capacity is related to proportion of different kind vessels.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 3; 535--539
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teaching situation and instructors’ key-competencies at the college of maritime education (CME): evaluation of the marine engineering students
Autorzy:
Victoriano, J. J.
Villaruz, R. T.
Alimen, R. A.
Powiązania:
https://bibliotekanauki.pl/articles/2172494.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime education and training
marine engineering students
college of maritime education
teaching situation
instructors' key-competencies
system in Philippines
Seafarers Training
teaching competence of instructors
Opis:
Strength of educational system depends upon the quality pf teachers. Teachers have always been considered as one of the noblest professions. (Naz, 2016). Students are generally influenced by their teachers because they spend most of their time at school (Rahaman, 2010; Rosen, 2010). To teach students according to today’s standards, teachers need to understand subject matter deeply and flexibly so that they can help students create useful cognitive maps, relate one idea to another, and address misconceptions. Teachers need to see how ideas connect across fields and to everyday life. Teachers use suitable strategies and resources to follow instructions according to the needs of the needs of individuals and groups of students. Teachers should guide pupils learning in analyzing. Teachers should provide manifold models and explanations of concepts behaviors and skills. Teachers provide creative and critical thinking, problem solving ability, curiosity. They should know how to use various technological and communication. They should believe in change and flexibility in teaching learning process (Rahaman, 2010; Rosen, 2010).
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 241--250
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vessel traffic monitoring and information system; reasons of establishing and principles of operation
Autorzy:
Urbański, J.
Morgaś, W.
Kopacz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/225001.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
system ruchu statków
bezpieczeństwo morskie
flota handlowa
pomiary geodezyjne
vessel traffic
maritime safety
shipping
VTMIS
engineering surveying
Opis:
In this paper, an attempt has been made to present and discuss the main issues of the Vessel Traffic, Monitoring and Information System (VTMIS). The VTMIS is the regional system being now developed by the European Union for its maritime areas. The main objective of this System is to ensure the proper level of maritime safety and antiterrorist security.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 359-366
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Special Subjects Teaching Methods in Marine Engineers’ Vocational Education System
Autorzy:
Skydanchuk, S.
Powiązania:
https://bibliotekanauki.pl/articles/116561.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Education and Training (MET)
Marine Engineering
Seafarers Training
Teaching Methods
Vocational Training
Vocational Education System
MET System in Ukraine
Engineers Training
Opis:
World marine engineering sector has been developing rather swiftly since recently. Every year the majority of leading shipping companies raise the level of management & maintenance of their vessels. Therefore the requirements to seafarers are increasing constantly. All these circumstances lead to the fact that every next year marine institutions, having limited time for teaching process, meet rising difficulties in seafarer’s proper training. That goes particularly for the special (technical) subjects, which are being taught to future marine engineers and form the level of their proficiency by the time of the graduation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 337-340
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:
Optymalizacja strategii poszukiwań podwodnych realizowanych w celach procesowych
The optimisation of underwater exploration strategies which are to be implemented for process development purposes
Autorzy:
Olejnik, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1359389.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
inżynieria mechaniczna
inżynieria morska
technologia prac podwodnych
mechanical engineering
maritime engineering
underwater works technology
Opis:
Materiał jest kontynuacją artykułu zamieszczonego w PHR nr 3(52)2015 dotyczącego metodyki wyboru strategii poszukiwań podwodnych realizowanych w celach procesowych. W niniejszym artykule zaproponowano zastosowanie jednej z metod optymalizacji decyzji do wyboru właściwego sposobu postępowania w takich przypadkach.
This material is a continuation of the article published in the PHR no. 3(52)2015 concerning the methodology of selecting underwater exploration strategies for process development purposes. The article proposes to use one of the methods of decision optimization for the selection of the appropriate course of action in such cases.
Źródło:
Polish Hyperbaric Research; 2019, 1(66); 35-46
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of a multiple regression model to determine the parameters of vessel traffic flow in port areas
Autorzy:
Nowy, A.
Gucma, L.
Powiązania:
https://bibliotekanauki.pl/articles/117457.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime traffic engineering
vessel traffic flow
port areas
multiple regression model
fairway
fairway parameters
Automatic Identification System (AIS)
AIS Data
Opis:
The paper presents the method of determining ships traffic stream parameters by means of regression method. The aim of the studies was to determine the correlation between the ship's parameters and the parameters of the fairway. Developing the presented model with information on the position of the vessel's antenna and information on the accuracy of position determination will allow creating a model for predicting the parameters of waterways.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 443-449
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Linearization of the ship equations of motion
Autorzy:
Mielewczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/245238.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
mechanical engineering
Maritime Engineering
nonlinear differential equations
linearization
resistance of hull
error solutions
Opis:
In real systems are non-linear mathematical description. The exact solution can not be determined, and then look for approximate methods. Important is the type of nonlinearity, solutions and error method approximation. Linearization is an essential part of creating a model of the selected process. Ship resistance is a function of power with exponent two and higher. Model motion of the ship must have a solution in terms of maneuverability speed and speed of the sea. The solution must be well reproduce the actual path of the transition and the transition time of the ship. Nonlinear solution method determines the accuracy of the answers. Has presented the revised approach to solve the nonlinear differential equation of parabolic function. Linearization has been made in the selected range, and not where you want it to work and solve the error estimate. Range of solutions selected by external priorities adopted. Before the solution is estimated response error. The error value determines whether the selected interval will apply. If the problem solution is unacceptable, it will increase the accuracy of the result of the narrow scope of the work. The new scope of work should also be reassessed a solution error. This type of approach correlates with fuzzy logic, where we use the value of the Boolean variable with the function of belonging. The combination of classical methods of solving differential equations of the theory of fuzzy sets can bring new benefits. Such a solution must have the function of the accuracy of the answers. The linearization method meets this requirement.
Źródło:
Journal of KONES; 2013, 20, 2; 269-275
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The chosen safety aspects of maximum size vessels passing in the presence of pleasure crafts at the Świnoujście Port entrance area
Autorzy:
Kowalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/135482.pdf
Data publikacji:
2018
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
marine traffic engineering
safety of navigation
harbour approach
pleasure crafts
maritime pilotage
port rules
yacht marina
Opis:
Approaches to the port are usually considered high traffic areas. Not only deep draft vessels pass through this limited manoeuvring space, but also intensive pleasure craft traffic, especially during the summer season. Crossing of both commercial ships and pleasure craft traffic may generate dangerous situations for navigation. The aim of the following article is to present solutions to the aforementioned safety problem. The article focuses on the navigation safety aspects at the Świnoujście seaport entrance. Currently, Świnoujście-Szczecin Port Regulations take only large ships into consideration while specifying the safety passing at this area, at the same time, belittling the presence of small crafts up to 20 m in length. In order to prove the need for change, one should first present the necessary research concerning the evaluation of the safety level of maximum sized ships navigating at the Świnoujście entrance area in the presence or absence of small pleasure crafts. The surveys were conducted on a group of pilots and captains possessing pilot exemption certificates. The research findings clearly show that the traffic of small crafts and large ships should be separated due to safety concerns. Thus, marine traffic engineering solution is suggested in order to eliminate the most plausible dangers.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 55 (127); 53-59
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the existing parameters of the ports entrances in the world in terms of their design
Autorzy:
Kosc-Pawlicka, D.
Gucma, L.
Powiązania:
https://bibliotekanauki.pl/articles/117346.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ships manoeuvering
parameters of the ports entrances
statistical parameters of waterways
maritime traffic engineering
entrance to the port
port design
maximum size of the ship
main harbours
Opis:
This article aims to analyse the statistical parameters of waterways forming the entrance to the port and the construction of a model for determining the optimum parameters of the entrance to the port. It has been analyzed parameters of the entrances to the 100 selected global ports, based on the analysis it was examined the interdependence between certain parameters and the impact they have on the maximum size of the ship which can enter to the port. This analysis allowed to develop a model, which can possible to be applied to the entrance of initial port design.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 413-416
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 sorbents for oil spill clean-up in ports and coastal areas
Autorzy:
Kończewicz, Włodzimierz
Polasz, Sylwia
Rogowska, Kinga
Powiązania:
https://bibliotekanauki.pl/articles/950129.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
materials engineering
maritime engineering
fuel
oils
lubrication
Opis:
Petroleum substances are a mixture of many hydrocarbons of various structures; some of them are toxic for marine organisms. In case of pollution of the aquatic environment, these compounds may enter seawater organisms and adversely affect gas exchange and inhibit photosynthesis. Therefore, it is important to take measures to reduce the emissions of these compounds into the aquatic environment and quickly to remove possible spills of uncontrolled pollution. Sorbents are materials that soak up oil from water. They are best suited for the absorption of oil – derived substances. They are used to absorb leaks in open and closed tanks, particularly in hard – to-reach places. Sorbents can be natural organic, natural inorganic or synthetic. Natural sorbents are divided to organic materials such as peat moss or wood products, and inorganic materials such as vermiculite or clay. Sorbents are available in a loose form, which includes granules, powder, chunks and cubes. Synthetic sorbents are used to wipe other oil spill recovery equipment such as skimmers and booms after a spill clean-up operation. The thesis deals with the issues related to the analysis of the possibility of using sorbents to combat oil pollution in port and coastal areas. The article discusses the types of pollution occurring in coastal waters, as well as the types of sorbents used and the forces and measures to combat pollution. The characteristic features of sorbents are rate of absorption and adsorption, oil retention and ease of application. Absorption tests were carried out and the best sorbents for combating oil pollution were selected.
Źródło:
Journal of KONES; 2019, 26, 4; 113-117
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of the skimmer specialized for oil removal from the port waters
Autorzy:
Kończewicz, W.
Mazurek, M.
Otremba, Z.
Sarad, T.
Powiązania:
https://bibliotekanauki.pl/articles/243689.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
oil spill combat
maritime engineering
environmental protection
Opis:
Project analysis to meet needs for equipment customized to pumping out surface forms of oil in the port and other narrow basins are reported in this paper. New elements of the technical concept of the skimmer to eliminate the disadvantages of structurally similar devices are proposed - esential componets of the new type of skimmer currently elaborating in the Student Scientific Society „Nautica“ (at Faculty of Marine Engineering of the Gdynia Maritime University) are demostrated. The first motivation to this work is that the consequence of growing usage of ships in the world transport is necessity to search for more fast and efficient methods to remove oil pollutions from the water surface and the second one – preparation of appropriate training and research equipment for the continuous improvement of its construction as well as the manner of its use in variety conditions. Port areas are relatively small and they have numerous hard to navigate places, therefore oils which leaked from ships or transloading equipment are difficult to remove from the water surface. Those all factors promote the development of the new and innovative solutions for more efficient water treatment. New solutions of the technical concept of the skimmer are proposed here - among other the theoretically justifiable triangular inlet openings with the system of vertical positionnig relative to the water surface.
Źródło:
Journal of KONES; 2013, 20, 2; 189-192
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on oil sorbents effectiveness
Autorzy:
Kończewicz, W.
Grabowska, O.
Lachowicz, D.
Otremba, Z.
Powiązania:
https://bibliotekanauki.pl/articles/246596.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
fuels
lubricant oil
maritime engineering
environmental protection
Opis:
The paper presents search for objective and quantitative method of determination usefulness of various loose sorbents destined for cleaning surfaces polluted with oil. The motivation to take up the topic is that oil pollution emergence in marine areas remains still as the environmental problem. During the ship exploitation there is possibility of appearing of the fuel oil, lubricating oil, hydraulic oil or even transformer oil leaks on the board which might be erased by washing or using sorbent powders and granules or mates. In the case of disposing the washing liquids, the large volume of oil-in-water emulsion is forming which is gathered in a tank and further transported to the vessel cleaning system. In the case when sorbents are applied in an early phase of oil leakage, the vessel cleaning system is less overloaded which reduce the probability of failure. We report analyses of effectiveness of mineral and organic sorbents. The time-period of incepting of defined amount of oil by define amount of sorbent is applied as the sorption effectiveness parameter. Time plots of oil sorption as well as visualizations of this process are presented. Method to characterize the efficiency of sorbents in relation to used lubricating oil is proposed which will stand as the base for further works directed towards elaborating optimal sorbent-set which can be rapidly used for combat spillages and leaks of oils and even other liquid dangerous payloads carried by ships.
Źródło:
Journal of KONES; 2013, 20, 1; 135-138
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Test of the suitability of chosen materials in terms of their use for removing oil spillage from the water environment
Autorzy:
Guźlińska, E.
Kończewicz, W.
Otremba, Z.
Trojnar, D.
Powiązania:
https://bibliotekanauki.pl/articles/241568.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
sorbents
fuel
seawater
maritime engineering
environmental protection
Opis:
The paper presents the study about impregnability of various loose materials dedicated as the fillers of oil absorbent socks and booms. Purpose of the survey was finding the material, which is characterized with the smallest hygroscopicity and the highest absorptivity towards typical fuels used in the marine techniques. The cause of take up the topic is the fact, that the contamination of sea areas with petroleum substances are unfortunately very often, are dangerous for natural environment and first of all are so hard to remove from the sea surface. The natural, mineral and synthetic sorbents were studied under laboratory conditions. Samples of the ten kinds of sorbent, each of 2 grams, were treated with the same amount of the diesel fuel, heavy fuel oil and the sea water also, each time in the same period-time (5 minutes). In order to determine the reliability of the results the authors carried out the test fivefold for the one of searched sorbents (recognized as the most hydrophobic-oleophilic substance). The results are presented in graphical form, based on which we are able to select sorbent that fulfils the greatest extent of required expectations. The results of performed tests show that the method that was described in the paper could be used to test the suitability of various materials for the production of devices for collecting the oil film from the surface of the water.
Źródło:
Journal of KONES; 2016, 23, 3; 171-176
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinematic method of determining safe fairway bend widths
Autorzy:
Gucma, S.
Dzwonkowski, J.
Przywarty, M.
Powiązania:
https://bibliotekanauki.pl/articles/117025.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Traffic Engineering
safe fairway
fairway
Full Mission Bridge Simulator (FMBS)
PIANC
kinematic model of ship movement
Rate of Turn (ROT)
Opis:
This article presents a dedicated kinematic method of determining a safe fairway bend width with a specific turn angle and arc radius as the function of ship parameters and prevailing navigational conditions on the fairway. The assumed approach takes into consideration monoeuvring and navigational components of the safe fairway bend width. The method is based on an analysis of the results of numerical tests conducted on a model representing all physically possible movements of ship's centre of gravity in the bend. The developed method was initially verified on the Ińskie bend, part of the Świnoujście-Szczecin fairway.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 435-442
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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