The development of biotechnology has essential influence on obtaining new varieties of plants commonly grown in the world for consumption and as raw materials for the feed industry. The application of new techniques permits modifying plants as regards the quality and quantity content of raw materials and products obtained from them

Joint alloplastics is one of the domains intensifying biomedical engineering development. Last decades show unabated activity towards increase of implant durability. Material restrictions force the search for new solutions. In this work the conception of new hip joint cap with metallic porous layer is presented. The idea based on self-lubricating bearing should ensure favourable conditions and minimize wear of co-working elements. Numeric analysis of the lubricating fluid flow in porous layer has been taken as well as verifying experimental research on hip joint friction simulator. Obtained results confirmed the fairness of the admitted assumptions. The fluid flow in porous cap ensures good lubrication of sliding layers and decrease wear of elements

The article presents comparison of Order Tracking and Autotracking methods of vibration signals analyses for assessing a technical condition of the rotors system of marine gas turbine engines. Results of tests were registered in run-up and shut-down processes of the turning of rotors system. Comparisons of results enable to present conclusions for application both methods for diagnosing marine gas turbine engines DR type in non-steady states

The purpose of the paper has been pointing out the ballast waters donor ports which for the Police harbour are of the highest risk category as far as transmitting living alien species is concerned. The species when encountering similar environmental conditions become risk to the local species as food competitors treating the local species as food and expanding in an invasive way and spreading formerly unknown diseases to the local environment. Moreover, they become dangerous to human health as well as hinder the economy development by reducing fish resources, growing on hydro-technical constructions etc

The article presents the subject of the information security management system (ISMS) and it concentrates on the key aspect – the methods of estimating the risk. There are the risk, assessing the risk and risk management definitions in the first part The review of the methods of estimating the risk was executed then. The selection of the method, to find the most adequate to the organization is the main problem in practical aspect of designing and implementing ISMS. It is really basis to designing solutions and controls to protect information in a system way

In recent years problem of environmental management system is arousing interest in organizations. It is result from more and more managers interest of efficient environmental performance evaluation and prevention of pollution. Therefore this article discussed basic environmental management system requirements according to ISO 14001. The paper tries to determine the impact of environmental systems or programs on improvement of environmental management system according to ISO 14001

The purpose of this article is to estimate social awareness of personal safety danger of traffic participants and to estimate the sense of motor threats for the environment. It describes the results of public opinion poll over the individual troublesomeness and motor threats estimate on the young group of people on example of Lublin Province area and comparatively, of Riga City

The article presents selected regulations and requirements responding to the needs of the market in the scope of managing safety in the logistic chain with particular consideration of marine transport and seaports. Based on conducted qualitative research by the method of deepened interview, there has been described the only, so far, case of using and implementing the certificated standard of ensuring safety in the global supply management chain according to ISO 28000. It was found that the quantification of risk is a process extremely difficult, since it relates to future events, the estimation is carried out in a situation of limited access to certain information, and is associated with subjective opinion and use the experience and knowledge of the evaluator

The paper describes basis of the model for reliability analysis of probabilistically homogenous offshore structures bearings. Three types of damages were considered: permanent plastic strain, fatigue crack and local instability. Specifically, features and limits of ability areas were proposed and determined. In this article was also investigated the influence of variation of element properties as an effect of cyclic loading action

This article presents law requirements of the toxic emission to the atmosphere on example usually measured components during the analysis of exhaust gases. The paper describes the impact of NOx, SOx and COx on the atmosphere and also ways to reduce their emission

For satellite based navigation within maritime applications, the IMO defines requirements for further GNSS systems (IMO, 2002). In order to meet e.g. the demands for automatic docking (absolute accuracy: 0.1 m horizontal, integrity: 0.25 m Alert Limit, 10 s Time to Alarm, 10E–5 Integrity Risk (per 3 h), accurate code and phase measurements are essential. As these measurements are distorted by effects of various error sources, efficient error detection and correction are of main interest. This paper presents the idea of describing the influence of error sources in both, time and frequency domain to derive a competent basis for evaluating the signal‟s quality and detecting outliers. This offers a fundament for signal classification (usable, unusable), prediction of signal states and error correction and thus the compliance with the given requirements. First a description of the used analysis method, the Hilbert Huang Transform is given. By means of data recorded at Tromsoe/Norway and Rostock/Germany, first results are discusse

The article justifies the need for diagnostics in the maintenance of gas turbine engines in power systems of vessels for production, handling and storage (FPSO type – Floating Production, Storage and Off-loading). It also presents basic features and specifications of turbine engines used on these units as well as methods of obtaining diagnostic information in the maintenance of turbine engines. Parameters of diagnostic signal models (heat-flow, vibroacoustic and exhaust emissions) and methods of their measurement have been identified. Methods of application of on- and off-line data for maintenance purposes have been diversifie

Ship is a sample of object where there are special demands with reference to man‟s protection. It is connected with spatial relations between technical solutions used on the vessels (where using of modern electronically aided tools result in production of ships which are quicker, safer, useful for transportation of different types of cargo for longer distances) and level of human immunity and possibilities of adopting to factors influencing that environment. Recently more attention was paid to the fact that vessels are not just means of conveyance but also a place of work and rest. Human body with its properties became a benchmark to which there were subordinated functional-spatial solutions. To fulfil the task there were taken into consideration: domination of design branch, high level of automatization, trends for decreasing of working costs, threats of pirates and terrorists strikes and work safety and fire regulations. The aim for that is to assure safety for crew, passengers, freight and environment in aspect of completing conditions given by regulations of marine organisations and administration

The article describes activities of Polish Special Military Unit in the Middle East which took part in the Second United Nations Emergency Force in Egypt – UNEF II in the period 1973–1979. There are presented traditions of Polish military service in the multinational commissions in Korea, Indochina and Nigeria in the period 1953–1973. The history of Polish military contingent in UNEF II is the main body of the article. Polish Army the first time was ordered to set up a battalion sized military unit to UN mission. It was big organizational and logistic challenge. The main part of contingent‟s supply transporting was realized by Polish vessels. They were build in Szczecin shipyard. The activity description is a second part of the article

Przedstawiono nowy sposób organizacji procesu roboczego kombinowanego systemu doładowania silników spalinowych z kaskadowym wymiennikiem ciśnienia, umożliwiający znaczący wzrost poziomu wysilenia sil-nika przy doładowaniu, ze względu na zwiększenie obszaru efektywnej wymiany ładunku oraz schłodzenia powietrza doładowującego do temperatur poniżej temperatury otoczenia bez strat energii mechanicznej na re-alizację cyklu chłodzenia. Przedstawiono metodyki wyboru podstawowych parametrów kaskadowego wy-miennika ciśnienia oraz ocenę możliwości chłodzenia systemu. Podano wyniki badań analitycznych i ekspe-rymentalnych systemu doładowania silnika 6ЧН12/14. Przedstawiono mechanizm zwiększenia efektywności schłodzenia powietrza doładowującego przy wzroście temperatury gazu ściskającego