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Asia Pacific Journal of Marine Science&Education


Volume 4, No.2, 2014

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Alexander A. Dyda, Dmitry A. Oskin, Ludmila .V.Krasiuk, Elena B.Osokina

SYMBOLIC SYNTHESIS OF CONTROL LAWS AND ITS APPLICATIONS

Abstract

This paper is devoted to the problem of the design procedure automatization for nonlinear control systems on the basis of symbolic computations and such well-known technique as exact linearization via nonlinear feedback. Developed software realizes the synthesis of control laws in symbolic form that is convenient for further analysis, modeling, and practical implementation of the system. Examples of the software applications to induction motor, robot manipulator, and underwater vehicle are given and discussed.

Keywords

symbolic calculations, feedback linearization, robotics, control law synthesis, underwater vehicle.

References (click to expand/close)
Evgeniya N. Egorova

OIL SPILLS ON SEA AREAS: MINIMIZATION OF ECONOMIC DAMAGE

Abstract

Methodological approaches to economic assessment of the environmental damage are analyzed, strengths and weaknesses are identified. The complex scheme of the economic damage structure formation from emergency oil spill at sea area based on recipient approach is presented. The problem of minimizing the economic damage caused by oil spills at sea areas is formulated, and basic flowchart of the assigned task solution is offered.

Keywords

economic assessment of environmental damage, minimizing the oil spills damage, oil spills in sea areas.

References (click to expand/close)
Roman V. Kolesnik

HYDROGRAPHIC FACTOR OF THE RESULTS OF THE RUSSO-JAPANESE WAR (1904—1905)

Abstract

In order to ensure navigational safety of ships and warships in the Far Eastern seas, particularly in the Yellow Sea, hydrographic studies of the seas of Northeast China and the Russian Far East were organized by Russia as well as Japan. The results of this work influenced outcome of the Russo-Japanese war of 1904—1905.

Keywords

Russian Far East, Japan, Northeast China, safety of navigation, hydrology, hydrometeorology, navigation, research.

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Коnstantin G. Krechetnikov

THE INFLUENCE OF INDIVIDUAL CREATIVITY ON THE SUCCESS OF PROFESSIONAL ACTIVITIES IN THE MARITIME FIELD

Abstract

The author considers the concept of individual creativity and the peculiarities of its manifestations in the work of specialists of different professional areas as well as the impact of creativity on a naval officer’s career success.

Keywords

intellectual-creative resources, creativity, socio-psychological culture, creative and non-creative professions.

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Natalia G.Levchenko

SIMULATION OF INFORMATION SYSTEMS FOR TRANSPORT AND LOGISTICS PROCESSES MANAGEMENT USING FUZZY NEURAL NETWORK TECHNOLOGIES

Abstract

A method of modeling poorly formalized process is proposed, which considers not only quantitative estimates, but the quality of not clearly defined and non-formalizable criteria and interlinks as well. The model has been developed for the follow-up process evaluation; it predicts process behavior to optimize overall performance. The method is based on the technology of fuzzy neural networks.

Keywords

transport and logistics process, information system for management, simulation modeling, logical-linguistic models, intellectual control, neural network

Elena B. Osokina, Alexander A. Dyda

ROBUST STABILITY OF SHIP COURSE CONTROL SYSTEM

Abstract

This article explores the usage of linear models of marine moving objects with variable parameters and the problems of systems robust stability. The examples of robust stability analysis for ship control systems are considered.

Keywords

Hurwitz determinant, linear models, marine moving objects, Kharitonov’s polynomial, robust stability.

References (click to expand/close)
Nikolai I. Pereslavtsev

KOREAN-JAPANESE DISCORD CONCERNING THE LIANCOURT ISLANDS

Abstract

This article discusses the reasons behind the dispute between Korea and Japan over the Liancourt islands located in the Sea of Japan, makes a detailed analysis of the arguments and positions of each of the parties from a historical, legal and economic point of view, and suggests ways and means to solve the problem taking into account the interests of international cooperation and security in the region.

Keywords

Dokdo, Takeshima, Liancourt, islands, Japan, Korean Peninsula, International Court of Justice

References (click to expand/close)
Sergey A.Ponomarev

OUR NAMES FOR OUR ISLANDS

Abstract

The article tells about the activities of Sakhalin Branch of Russian geographical society to explore “white spots” and interesting places on the map of the Kurile Islands and the Island of Sakhalin. Particular attention is drawn to the approval of geographical names reflecting the merits and contribution of Russian researchers.

Keywords

Sakhalin, Kurile Islands, Kamchatka, island, geographical space, expeditions, Pacific Ocean

Victor.A. Sedov, Nelly А. Sedova

MODELLING COLLISION AVOIDANCE ACTIONS IN CLOSEST APPROACH ZONES BY MEANS OF NEURAL NETWORKS

Abstract

Results of neural network solution to sea-going vessel collision avoidance actions in the closest approach zones are presented. Teaching selection formation methodology, calculation of identifying neural processing element quantity in layers, and results of neural network training in teaching selection using five pre-processing methods are shown.

Keywords

training algorithm, maneuvering board, method of optimization, rules for preventing сollisions at sea, neural network, teaching selection, collision avoidance action, closest approach

References (click to expand/close)
Boris I.Tkachenko

THE VALUE OF THE ECONOMIC POTENTIAL OF THE SOUTH KURILE SUB-REGION FOR THE NATIONAL SECURITY OF RUSSIA

Abstract

This article examines natural, biological, mineral-raw and recreational resources of South Kurile sub-region, makes for the first time in the scientific world a detailed and complex estimation of economical and strategic importance of South Kurile Islands, adjoining continental shelf and 200-mile exclusive economic zone for Russia, considers impact of "the Kurile problem" on Russia’s national security

Keywords

South Kurile Islands, economic potential, exclusive economic zone, continental shelf, natural, biological, mineral-raw and recreation resources, Sea of Okhotsk, Russian Federaion, Japan.

References (click to expand/close)
Pavel V. Cherkashin

REPUBLIC OF KOREA`S PLANS ABOUT THE ARCTIC EXPLOITATION AND PERSPECTIVES OF RUSSIAN-KOREAN COOPERATION IN THE REGION

Abstract

The article describes South Korea`s approaches to the Arctic development issue, disclose in details its reasons, aims and aspirations, related to this region exploitation perspectives. Author makes an effort to have a look at concrete directions of potential Russian-South Korean cooperation in the Arctic from the point of view their correlation to Russia`s national interests.

Keywords

Russia, Republic of Korea, Arctic, Northern Sea Route, Arctic Council, cooperation, plans

References (click to expand/close)

© Admiral Nevelskoy Maritime State University, NPO «Asia-Pacific Journal of Marine Science&Education. Editors Board».