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1

Do the changes of the function of excitation of pole motion have deterministic components?

100%
Przyborski M., Pyrchla J., Serafin M.
Polish Journal of Environmental Studies
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2005
|
tom 14
|
nr Suppl.1
The unique changes of the components X1X2 of the function of excitation of the pole? Those changes still remain not fully understood. We address the question about the distribution of those changes, do they have deterministic nature or not?
2

Prediction of the submerged object`s trajectory based on data from operational oceanographic and atmosphere models

84%
Kaminski P., Pyrchla J., Staskiewicz A.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
A method of the submerged object’s motion forecast based on oceanographic and atmosphere operational models is described. High resolution fields of sea currents shall be calculated using a simplified barotropic local model in the area of the object with the boundary conditions from the operational oceanographic global model. The domain of high resolution calculations shall be defined automatically depending on the object’s probable position, local bathymetry and the latest available global forecast. Higher resolution of the predicted local current field can be achieved by means of the shape function commonly used in the finite element method.
3

Evaluation of coating systems using impedance spectroscopy

84%
Miszczyk A., Darowicki K.
Polish Journal of Environmental Studies
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2005
|
tom 14
|
nr Suppl.1
Safety and reliability of strategic industry and military engineering structures and devices depend on corrosion and wear protection. One of the most frequently employed techniques for reducing corrosion and wear damage is application of polymer coatings. The durability and the service life of the high-performance coating systems depend on environmental impacts and is associated with irreversible physical and chemical processes. In order to select the best individual coating system for specific environment it is helpful to know the protective characteristic of coatings. Use of the impedance spectroscopy allows to determine the range of application areas and a prognosis of the coating service life. This work shows the possibility of impedance spectroscopy for determining the protective properties of high-performance coating systems used in strategic industry and military structures and devices.
4

Parameters affecting the accuracy of visual navigational information

84%
Pyrchla J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
Any methodology directed towards quick interpretation of navigational observation in various information systems requires parameters describing it. By conducting a series of experiments and mathematical analysis of their results it was possible to verify how various parameters may affect the accuracy of navigational observations. This note discusses some of the results of these experiments and characterises those parameters which are of real importance.
5

Digital orthophotomap of a harbor as a primary cartometric data source in LIS support of harbor management

84%
Kedzierski M., Walczykowski P., Klewski A., Sanecki J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The paper presents creation and potential applications of a digital orthophotomap of a harbor. Possibility of frequent updating and the amount of information it contains make it the primary cartometric material of a harbor. A strange rescue team conducting a rescue mission in a harbor using Land Information Systems data based on an actual orthophotomap has much greater chances for a successful action than a team deprived of such data. Furthermore, using an orthophotomap in LIS by the harbor authority seems to be the only appropriate solution. According to NATO standards, each military harbor should have an orthophotomap in the scale of 1:5000 (analog version). However, it is not currently used in LIS support of t harbor management.
6

Fuzzy function of accuracy of visual navigational observation

84%
Pyrchla J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The work presents results of interdisciplinary research aimed at determining the accuracy of visual navigational observation made at sea. It presents the fuzzy function describing the error made during visual navigational observation, worked out on the basis of analysis of experiment results. The values of variables in the function depend on factors affecting the observation result.
7

Selected problems of cooperation in the framework of Paris and Tokyo memoranda on Port State Control

84%
Duda D., Soszynski P.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The authors presented the outcomes and information regarding the last year conference on Port State Control (PSC) in Canada. In addition, a short synopsis about the history of PSC is presented and possibilities for deeper regional cooperation in this field have been investigated.
8

The coordinated maritime safety, security and defence system; the one of the main means and forms of global war on world`s terrorism

84%
Kopacz Z., Morgas W., Urbanski J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
In this paper, the Coordinated Maritime Safety, Security and Defence System, being one of the main means and forms of waging the global war on world’s terrorism has been discussed and presented. Especially, the place and role of naval forces in this System have been emphasized. The considerations and conclusions shown in this paper are authors’ ones and regard mainly the middle - size navies of NATO alliance.
9

A concept of navigation support system in areas difficult to navigate

84%
Wolejsza P.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The process of navigating a sea-going ship heavily depends on decision making. The decisions result from performed transport tasks - carriage of cargo and people as well as the current and predicted navigational situation. Increasing amount of available information and growing complexity of technological systems used make information management and relevanfdecision making so difficult that it may result in wrong decisions, particularly in emergency situations. Maritime administrations have implemented special procedures of watch keeping and those in emergency. Such procedures are helpful in making the right decision. The procedures, however, are not helpful in accelerating the processing of a load of'infor- mation a navigating officer is surrounded by. One method of solving the problem is the application of artificial intelligence for searching for necessary information. This article analyses possible ways in which a navigator can acquire, process and use a large amount of information in decision making process. A concept utilizing artificial intelligence tools for navigation support system in navigationally difficult areas is presented. The article discusses goals such a system should achieve for the ship to follow a preset trajectory and to avoid collisions. The information provided herein outlines the construction of such a system and may be useful in research into the problems of designing navigational decision support systems.
10

Method of logical product in the process of bathymetric navigation

84%
Stateczny A., Duda J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The article presents the concept of applying sonar images for determining a vessel’s position. A modified method of logical product has been presented, which enables the matching of the lateral sonar’s image to the standard.
11

Influence of a reference system on the accuracy of the ship`s position

84%
Dabrowski T.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
This article presents both basic foundations, concerning the defining a new orientation system, and influence of using such an orientation system on the accuracy of the object’s position. The orientation system is a part of the theory of cinematic geodesy. The author of this article presents the possibilities of using the new orientation system in navigation. The article should be recognized as an initial one, presenting generally ideas of a new orientation system.
12

Reliability optimization for integrated radar systems

84%
Balicki J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
In this paper, a problem of reliability optimization for a radar system is studied. A multi-criterion optimization problem has been formulated for finding a set of Pareto-optimal task assignments. Three patial criteria have been used for evaluation of task assignment: the reliability of system, the workload of a bottleneck computer, and the cost of computers. The computer resource constraints have been respected. An evolutionary algorithm with tabu mutation has been developed for finding Pareto-optimal task assignments. This approach deals with a modified genetic algorithm cooperating with the main evolutionary algorithm. An immune system activity is emulated by a modified genetic algorithm to handle constraints.
13

Propagation of acoustic waves generated by a moving source in a shallow sea

84%
Kozaczka E., Domagalski J.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The article presents results of research on the spectral structure of the acoustic field of underwater noise generated to the water medium by selected units moving in a shallow sea. The underwater acoustic field of these units is bound with the mechanical activity of mechanisms and devices mounted in the vessel’s hull. The vibration energy originated by these mechanisms and devices is transmitted by the vessel’s construction elements to the water medium where it propagates in the form of acoustic waves in a wide frequency range. The work also presents results of identification and simulation of wave propagation included in the continuous spectrum of underwater noise.
14

Intelligent fusion of navigational data

84%
Lisaj A., Chafan M. M. A.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The following paper presents an innovative concept of multisensor navigational data fusion. It illustrates a few various possibilities of applying a solution to the problem of navigational information managing in reference to some ship equipment which receive a set of data from many sources. The right verification of the Information will enable safety in vessel maneuvering and will ease the whole sea transport process to the watch officer.
15

Space modelling of sea bottom shape using the geostatistic method

84%
Stateczny A., Kozak M.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The monitoring of changes in the shape of sea bottom in order to control the depth is one of the basic methods of ensuring safety of navigational units. The geostatistic method is counted among the best numerical methods of surface spatial modelling. The construction of a spatial model requires the interpretation of measurement data in order to determine the depth for any coordinates, e.g. in nodes of regular squares network. The article presents research results and the basic aspects of spatial modelling of sea bottom by the geostatistic method.
16

Object recognition using fourier transform, histogram, and logical product

84%
Nermend K.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
The paper discusses the use of Fourier transform, histogram, and logical product for the recognition of objects on the sonar screen. It is shown how to use frequency components as input data for the method described in [3].
17

On organic coatings in marine applications

84%
Darowicki K., Szocinski M.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
A number of marine structures fail due to the fatigue damage resulting from cyclic mechanical stress. However, as far as coatings are concerned this degradation factor remains underestimated. In the paper the authors propose the methodology for the evaluation of coating resistance to an impact of repetitive mechanical stress. Typical epoxy coating designated for ship hull protection has been tested in as-received state as well as after pre-exposure to UV radiation and elevated temperature.
18

The security threats for Europe

84%
Szubrycht T.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
Analyze of maritime security threats for European security and characteristics of main security threats for Europe are presented in the paper. In the paper were presented different points of view in this matter. Analysis includes also the levels of threats for each European maritime area. And finally the paper presents a comparison of American and authors opinion about the European arc of threats.
19

Accuracy of the fix - further prospect

84%
Kowalski H., Galinski J., Dabrowski T.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
This article presents possibilities of a further increase of the accuracy of ship’s position, which can be obtained by the usage of a laser gyroscope. Calculation of coordinates of ship’s position is made on the basis of a new cinematic geodesy, so-called displacement method. There are faults and virtues of such a measurement system; a two-frequency laser gyroscope is an example of, presented in the article. Analysis of the accuracy of ship’s position, made in geographic coordinates, has been obtained on the grounds of presently used navigation systems and the accuracy of position that can be obtained by the new system.
20

Some aspects of filtrating finite sets of noisy data

84%
Przyborski M.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr Suppl.1
This paper presents the results obtained from investigating the problepa how much information about the system’s dynamics can be recovered from the finite sets of noisy measurements. As an example of data, the hydro acoustical signalp representing different boats have been used. In particular, filtering of signals is discussed, as well as methods of reconstruction the state space.
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