T. Makarevich, S. Kondrat'ev, E. Heckert, Yu Kuznetsova, E. Cyganko, V. Škoda, D. Yavorskaya
The marine engineer activity is associated with the need for communication in a multinational crew. The article deals with professionally-oriented foreign language training of marine engineers in the context of international conventions. The description of the developed guidebook "Oil Record Book" is given. The original professional situations offered in the guidebook for analysis show the conditions of the activity of mechanical engineers when they perform the main typical tasks of their professional activity and contribute to the improvement of foreign language speech competence. The basic unit of training is a typical professional task as a fragment of the subject context, the development of which includes not only the subject, but also the social component of the marine engineer future activity. The results of the work on the marine specialists training on the basis of the developed guidebook "Oil Record Book" as a means of forming competencies in the conditions of mastering typical tasks of professional work are analyzed. The features and dynamics of the development of professional foreign language communicative competencies are studied
{"title":"ON THE ROLE OF MARINE TRANSPORT ENGINEERS PROFESSIONALLY-ORIENTED FOREIGN LANGUAGE TRAINING IN THE CONTEXT OF INTERNATIONAL CONVENTIONS","authors":"T. Makarevich, S. Kondrat'ev, E. Heckert, Yu Kuznetsova, E. Cyganko, V. Škoda, D. Yavorskaya","doi":"10.34046/aumsuomt105/18","DOIUrl":"https://doi.org/10.34046/aumsuomt105/18","url":null,"abstract":"The marine engineer activity is associated with the need for communication in a multinational crew. The article \u0000deals with professionally-oriented foreign language training of marine engineers in the context of international \u0000conventions. The description of the developed guidebook \"Oil Record Book\" is given. The original professional \u0000situations offered in the guidebook for analysis show the conditions of the activity of mechanical engineers \u0000when they perform the main typical tasks of their professional activity and contribute to the improvement of \u0000foreign language speech competence. The basic unit of training is a typical professional task as a fragment of \u0000the subject context, the development of which includes not only the subject, but also the social component of \u0000the marine engineer future activity. The results of the work on the marine specialists training on the basis of \u0000the developed guidebook \"Oil Record Book\" as a means of forming competencies in the conditions of mastering \u0000typical tasks of professional work are analyzed. The features and dynamics of the development of professional \u0000foreign language communicative competencies are studied","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82634459","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}
The article has considered the method of vessels possible collision area constructing in problem of guaranteed collision avoidance of controlled vessel with unpredictable target-vessels. Reachable set is expanded with defined safe distance, segments of enlarged set combine and form possible collision area, which is convenient for practical use. Performed researches contribute to the improvement of the ship’s handling methods.
{"title":"METHOD OF POSSIBLE SHIPS COLLISION AREA CONSTRUCTING ON REACHABLE SETS BASIS","authors":"A. Zhuk","doi":"10.34046/aumsuomt105/2","DOIUrl":"https://doi.org/10.34046/aumsuomt105/2","url":null,"abstract":"The article has considered the method of vessels possible collision area constructing in problem of guaranteed collision avoidance of controlled vessel with unpredictable target-vessels. Reachable set is expanded with defined safe distance, segments of enlarged set combine and form possible collision area, which is convenient for practical use. Performed researches contribute to the improvement of the ship’s handling methods.","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84425926","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}
The article discusses the prospects for the use of biofuels as an alternative fuel for marine diesel engines. The results of the analysis of applied technologies for the production of biodiesel are presented. The expediency of using a hydrodynamic mixer as a device that ensures the intensity of the transesterification reaction in the production of biodiesel is substantiated. A technological scheme of a laboratory plant for the production of biodiesel has been developed. The results of laboratory studies to determine the optimal material balance of the transesterification reaction for the production of biodiesel in a plant equipped with a hydrodynamic mixer are presented. The main indicators of the interesterification reaction (viscosity, flash point, sediment height) for a plant equipped with a hydrodynamic mixer have been determined. The optimal mass ratio of the transesterification reaction has been established, which ensures the best quality indicators of the resulting biodiesel and allows evaluating the efficiency of the hydrodynamic mixer used in the plant. Recommendations are given on the ratio of vegetable oil and methanol in the production of biodiesel. The best oil/methanol ratio, in terms of biodiesel yield and quality, is 7.5:1. The use of traditional petroleum fuels mixed with biodiesel can be seen as an effective way to reduce air pollution from ships and ensure compliance with the rules of the International Maritime Organization
{"title":"PRODUCTION OF BIOFUEL COMPONENTS FOR MARINE POWER PLANTS","authors":"A. Gromakov, A. Fil’","doi":"10.34046/aumsuomt105/20","DOIUrl":"https://doi.org/10.34046/aumsuomt105/20","url":null,"abstract":"The article discusses the prospects for the use of biofuels as an alternative fuel for marine diesel engines. The \u0000results of the analysis of applied technologies for the production of biodiesel are presented. The expediency of \u0000using a hydrodynamic mixer as a device that ensures the intensity of the transesterification reaction in the \u0000production of biodiesel is substantiated. A technological scheme of a laboratory plant for the production of \u0000biodiesel has been developed. The results of laboratory studies to determine the optimal material balance of the \u0000transesterification reaction for the production of biodiesel in a plant equipped with a hydrodynamic mixer are \u0000presented. The main indicators of the interesterification reaction (viscosity, flash point, sediment height) for a \u0000plant equipped with a hydrodynamic mixer have been determined. The optimal mass ratio of the transesterification \u0000reaction has been established, which ensures the best quality indicators of the resulting biodiesel and \u0000allows evaluating the efficiency of the hydrodynamic mixer used in the plant. Recommendations are given on \u0000the ratio of vegetable oil and methanol in the production of biodiesel. The best oil/methanol ratio, in terms of \u0000biodiesel yield and quality, is 7.5:1. The use of traditional petroleum fuels mixed with biodiesel can be seen as \u0000an effective way to reduce air pollution from ships and ensure compliance with the rules of the International \u0000Maritime Organization","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79245095","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}
When chartering a fleet in the tramp form of shipping, it is almost impossible to competently draw up a charter without the participation of a freight broker who has universal knowledge in the field of merchant shipping. However, in recent times it has become more and more common to observe that maritime brokerage companies operate chartered vessels on their own, trying to maximize their profits. This is how the name “time charter shipowner” appeared, and this form of activity can be organized without significant financial investments, which, of course, is very attractive for companies involved in fleet operation. The authors of this article analyzed the work of companies involved in the operation of the fleet, and also proposed a model for the process of solving the problem of maximizing profits when chartering a fleet in various segments of the freight market. Also, the authors give options for the combined chartering of the fleet and present the features of the formation of income and expenses of a company operating a fleet in various segments of the freight market
{"title":"MODELING THE PROFIT MAXIMIZATION PROCESS OF A TIME CHARTER SHIPOWNER WHEN CHARTERING A FLEET","authors":"T. Golovan, D. Muradov","doi":"10.34046/aumsuomt105/16","DOIUrl":"https://doi.org/10.34046/aumsuomt105/16","url":null,"abstract":"When chartering a fleet in the tramp form of shipping, it is almost impossible to competently draw up a charter \u0000without the participation of a freight broker who has universal knowledge in the field of merchant shipping. \u0000However, in recent times it has become more and more common to observe that maritime brokerage companies \u0000operate chartered vessels on their own, trying to maximize their profits. This is how the name “time charter \u0000shipowner” appeared, and this form of activity can be organized without significant financial investments, \u0000which, of course, is very attractive for companies involved in fleet operation. \u0000The authors of this article analyzed the work of companies involved in the operation of the fleet, and also \u0000proposed a model for the process of solving the problem of maximizing profits when chartering a fleet in various \u0000segments of the freight market. Also, the authors give options for the combined chartering of the fleet and \u0000present the features of the formation of income and expenses of a company operating a fleet in various segments \u0000of the freight market","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79387875","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}
V. Shkoda, T. Makarevich, M. Modina, Yu Kuznetsova, A. Gevorgyan
The level of industrial development currently requires constant modernization of the pumping equipment produced: improving its design and manufacturing technology, as well as improving energy efficiency and competitiveness in the world market. The article analyzes promising areas for improving fuel pump designs for aircraft and marine vessels
{"title":"ANALYSIS OF PROMISING AREAS FOR IMPROVING FUEL PUMP DESIGNS FOR AIRCRAFT AND MARINE VESSELS","authors":"V. Shkoda, T. Makarevich, M. Modina, Yu Kuznetsova, A. Gevorgyan","doi":"10.34046/aumsuomt105/36","DOIUrl":"https://doi.org/10.34046/aumsuomt105/36","url":null,"abstract":"The level of industrial development currently requires constant modernization of the pumping equipment produced: \u0000improving its design and manufacturing technology, as well as improving energy efficiency and competitiveness \u0000in the world market. The article analyzes promising areas for improving fuel pump designs for \u0000aircraft and marine vessels","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85460408","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}
O. Volintiru, A. Epikhin, I. Scurtu, D. Mărășescu, I. Florin, G. Bălan
are designed to circulate the air in the rooms on board, usually without heat treatment or humidity. Ventilation systems consist of machines that provide the energy for air circulation (fans), main ducts connected to the suction and exhaust of the fans, branches and distribution components. For machinery spaces related to ships, ventilation systems are vital for the proper functioning of thermal engines used as propulsion systems. Gas turbines are heat engines used as propulsion systems usually for special ships.
{"title":"ASPECTS OF VENTILATION PRINCIPLES IN SHIPS MACHINERY ROOMS","authors":"O. Volintiru, A. Epikhin, I. Scurtu, D. Mărășescu, I. Florin, G. Bălan","doi":"10.34046/aumsuomt105/33","DOIUrl":"https://doi.org/10.34046/aumsuomt105/33","url":null,"abstract":"are designed to circulate the air in the rooms on board, usually without heat treatment or humidity. Ventilation \u0000systems consist of machines that provide the energy for air circulation (fans), main ducts connected to the \u0000suction and exhaust of the fans, branches and distribution components. For machinery spaces related to ships, \u0000ventilation systems are vital for the proper functioning of thermal engines used as propulsion systems. Gas \u0000turbines are heat engines used as propulsion systems usually for special ships.","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86626638","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}
In this scientific article, the market research o f modern management and administration tools o f the Linux and Windows OS family is carried out, a comparative analysis o f the most popular and demanded o f them is carried out. The basic requirements for management and administration tools are formulated, their main features are highlighted. To date, there are many OS management and administration tools. Each o f them has its advantages and disadvantages. Therefore, it is sometimes very difficult to choose the right tool
{"title":"ANALYSIS OF MANAGEMENT AND ADMINISTRATION TOOLS LINUX AND WINDOWS OPERATING SYSTEMS","authors":"M. Al-hanani, I. Sokolova, A. Puchkov","doi":"10.34046/aumsuomt105/41","DOIUrl":"https://doi.org/10.34046/aumsuomt105/41","url":null,"abstract":"In this scientific article, the market research o f modern management and administration tools o f the Linux and \u0000Windows OS family is carried out, a comparative analysis o f the most popular and demanded o f them is carried \u0000out. The basic requirements for management and administration tools are formulated, their main features are \u0000highlighted. \u0000To date, there are many OS management and administration tools. Each o f them has its advantages and disadvantages. \u0000Therefore, it is sometimes very difficult to choose the right tool","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73537791","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}
The article presents research, theoretical foundations, materials and diagnostic methods using the wavelet method. At peak loads, transient modes or frequent operation o f the cargo pump, the degradation o f pump components and especially bearings increases. Such modes (especially the first two) o f operation increase the mechanical vibration o f rolling bearings, which can lead to their premature destruction. The readings are taken during the pump start and filtered by the average value, converting it into a wavelet packet. Filtered series are used to estimate the relationship between the maximum displacement o f the curve and accumulated operating time. The evaluation equation associated with vibration standards sets the time spent in a state o f degradation and simulates the process o f equipment wear taking into account the sequence o f maximum displacements o f the curves
{"title":"AUTOMATIC DIAGNOSTICS OF CARGO PUMP BEARINGS USING WAVELET PACKET CONVERSION AND COMPUTER SIMULATION","authors":"I. Barsukov","doi":"10.34046/aumsuomt105/40","DOIUrl":"https://doi.org/10.34046/aumsuomt105/40","url":null,"abstract":"The article presents research, theoretical foundations, materials and diagnostic methods using the wavelet \u0000method. At peak loads, transient modes or frequent operation o f the cargo pump, the degradation o f pump \u0000components and especially bearings increases. Such modes (especially the first two) o f operation increase the \u0000mechanical vibration o f rolling bearings, which can lead to their premature destruction. The readings are taken \u0000during the pump start and filtered by the average value, converting it into a wavelet packet. Filtered series are \u0000used to estimate the relationship between the maximum displacement o f the curve and accumulated operating \u0000time. The evaluation equation associated with vibration standards sets the time spent in a state o f degradation \u0000and simulates the process o f equipment wear taking into account the sequence o f maximum displacements o f \u0000the curves","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88152416","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}
The article gives specific recommendations for structuring a modern crew of a transport vessel for effective fire fighting. The main duties of the persons of the command staff and emergency units of the vessel, the principles of crew management are defined
{"title":"RECOMMENDATIONS ON STRUCTURING THE EMERGENCY ORGANIZATION OF A TRANSPORT VESSEL","authors":"A. Boran-Keshishyan, A. Remnev","doi":"10.34046/aumsuomt105/6","DOIUrl":"https://doi.org/10.34046/aumsuomt105/6","url":null,"abstract":"The article gives specific recommendations for structuring a modern crew of a transport vessel for effective fire fighting. The main duties of the persons of the command staff and emergency units of the vessel, the principles \u0000of crew management are defined","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84712864","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}
The article explores the ways o f forming an adaptive coding algorithm 8/16 bits per baud for control or remote control signals with specified quality criteria in a physically non-expandable data transmission channel. The combination o f bearing and information exchange systems in one radar station faces difficulties in forming a transmitted message. It is necessary to use noise-proof methods o f convolutional coding in order to detect transmitted message bits in linear frequency modulation band o f the probing and reflected signals. The formation o f a broadband signal using a fractional Fourier transform provides the formation o f message protocols by multiplexing with orthogonal frequency division. The proposed coding method implements error-correcting coding in the ratio o f 8 or 16 bits per baud. The use o f radio communication in the navigation radar band makes it possible to implement the concept o f a combined intelligent transport system
{"title":"ENSURING IMMUNITY OF DATA TRANSMISSION OVER RADAR COMMUNICATION CHANNELS","authors":"I. Dancevich, M. Lyutikova, Z. Zhumaev","doi":"10.34046/aumsuomt105/42","DOIUrl":"https://doi.org/10.34046/aumsuomt105/42","url":null,"abstract":"The article explores the ways o f forming an adaptive coding algorithm 8/16 bits per baud for control or remote \u0000control signals with specified quality criteria in a physically non-expandable data transmission channel. The \u0000combination o f bearing and information exchange systems in one radar station faces difficulties in forming a \u0000transmitted message. It is necessary to use noise-proof methods o f convolutional coding in order to detect \u0000transmitted message bits in linear frequency modulation band o f the probing and reflected signals. The formation \u0000o f a broadband signal using a fractional Fourier transform provides the formation o f message protocols \u0000by multiplexing with orthogonal frequency division. The proposed coding method implements error-correcting \u0000coding in the ratio o f 8 or 16 bits per baud. The use o f radio communication in the navigation radar band makes \u0000it possible to implement the concept o f a combined intelligent transport system","PeriodicalId":19521,"journal":{"name":"Operation of Maritime Transport","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88507111","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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