W artykule przeanalizowano przyczyny błędnego wykorzystania wskaźnika produktu krajowego brutto (PKB) przy ocenie wielkości i tempa wzrostu wytwarzanej w kraju produkcji. Z tych samych powodów wskaźnik PKB nie jest przydatny w ocenie efektywności prowadzonej w kraju polityki inwestycyjnej i inno-wacyjnej. Zaleca się zamianę wskaźnika PKB na wskaźnik dochodu krajowego brutto (DKB) i podaje się je-go definicję

Combinatorial method of an assessment of management object state is suggested according to the situational symptoms of the forecast behavior based on probabilistic solutions

The paper presents the problems of fighting the noise coming from hydraulic central loading systems with big power installed on modern product and chemical tankers to supply cargo pumps. The structure of a hydraulic central loading system is described along with its components and main noise sources are characterized. Active and passive ways of noise reduction on a technical road are presented as well. All the deliberations have been illustrated on the example of specific solutions of the hydraulic central loading system installed on the product tanker m/t “Helix”, built by the Szczecin Shipyard SA for the Shell-Australia shipowner

W artykule omówiono podstawowe problemy polskiego transportu samochodowego w zakresie przewozu ładunków. Wskazano na dominujący udział tego środka transportu w przewozach krajowych, przy jednoczesnym zaniedbaniu infrastruktury i niskiej sprawności techniczno-eksploatacyjnej taboru samochodowego. Poruszono też temat wymogów narzuconych wejściem Polski do Unii Europejskiej, a także zależności między rozwojem gospodarki narodowej a rozwojem systemu transportowego, które wymagają podjęcia jak najszybszych działań

W polityce transportowej, a także w praktyce gospodarczej od lat prowadzona jest debata nad liberalizacją czy kontrolowanym ładem współzawodnictwa na rynku usług transportowych. Przyczyny owego sporu leżą nie w istniejącym ładzie rynkowym transportu lub w zmieniających się wymaganiach wynikających z potrzeb przewozowych, ale uzasadniane są zróżnicowanym punktem widzenia określonej polityki gospodarczej. W artykule wskazano na teorie gospodarcze i konkurencyjne w debacie nad regulacją i deregulacją w transporcie, w której dużo mówi się o deregulacji, a zbyt mało o regulacji procesów transportowych

The article presents creation of a methodology of intertrade planning free from any defects connected with the usage of the V. Leontjev economical mathematical model and “Input – Output” intertrade balance [1, 2]. A new type of an intertrade balance (BMB “P-P”) has been drawn up as well as an algorithm of its optimization imitating the mechanism of the market regulation and allowing an imitation of various commercial production demand conditions. The possibility of a BMB “P-P” optimization is unique because no other algorithms for the solution of this problem or for the production plans construction exist that are counterbalanced with the possibilities of the production on a country’s scale. The utilization of the proposed methodology will allow avoiding the shortcomings, minimizing the costs, estimating social and economic realization efficiency of innovation projects, determining the realization effects of state investment programs and protectionist decisions of country’s management, as well as forecasting changes in the proportion of intertrade production

The paper presents the necessity and possibility of the BMB “P-P” usage in construction of innovation, investment and social programs as well as of protectionist decisions of the govenment. Construction and optimization of the BMB “P-P” allows to determine the changes of outlays and of results of all the branches in the realization of projects, programs or protectionist decisions of the govenment. As a result, the economists will have a possibility to increase the exactness of the economic or social assessment. Construction of optimal BMB “P-P” prevents uncontrolled increase in country’s unemployment and inflation. The BMB “P-P” usage is effective in evaluating the projects of intensive and extensive production increase as well as in forecasting the country’s development

In the article are presented basic ships are presented. Also the issue of the risk to the sea environment regulations concerning ballast water traditional techniques of ballast water innovative and effective systems, such as: neutralization system with the use of PERACLEAN PureBallast system, electrochemical EctoSys™ system, CleanBallast system and PEROXEGEN™

The problem of simulation in integrated management information systems is presented. At the same time, a solution has been suggested that uses modular modeling techniques in simulators in the system-dynamic presentation

Cranes operators are exposed both to active and passive influences during work. Work positions of the operators, who were put through examinations, differed in a degree of complexity, therefore also in a degree of susceptibility to stress connected with the executed activities. Examinations were carried out for operators manning three kinds of cranes: teeming crane, repair crane and ingot mould stripper crane. The Holter technique and psychophysical tests according to the so-called Dortmund List were use

Activities of the armed forces, particularly certain kinds of training courses, which require heavy combat and transport equipment as well as live ammunition, may have destructive impact on environment. It is unavoidable, but negative influence may and should be minimized. Necessity of relocating considerable forces and resources on long distances involves various means of transport. Current challenge of all the armies is the search for legal and organizational solutions so that appropriate education of soldiers and army’s efficiency are ensured with as few negative effects on environment as possible. Transport sector in contemporary economies is the most rapidly growing source of carbon dioxide and other greenhouse gases emission. It is estimated that transport in Europe is responsible for 28% of carbon dioxide emission, 84% of which is caused by road transport. Apart from obeying more and more rigorous norms and regulations concerning environmental protection issues, solutions should be searched for in systems used in transport telematics, minimizing fuel consumption and maximally making use of means of transport at the same time

The presented research results specify the frequencies of an acoustic emission (AE) signal connected with phenomena occurring in the injection system of a diesel engine. From the time-frequency analysis the spectrum density was determined for a phenomenon or changes caused by the wear or damage of a selected injector component

The article presents an original method of determining energy demand for ship propulsion, electrical power and boiler capacity for modern cruise liners at the preliminary stage of ship designing by means of statistic methods of calculations

The issue of separation of oil emulsion using the ultrafiltration (UF) modules has been discussed in this paper. On the basis of preliminary studies performed in Maritime University of Szczecin, ultrafiltration modules have been suggested that comply a control test of Marpol Res. IMO MEPC 107/49. A new solution of the Neptun oil separation system with the use of patented ceramic UF modules has been presente

This paper describes a concept of evolutionary neural networks application in decision process support during vessel manoeuvring in a restricted area. Selected algorithms, genetic operations, methods of coding and selection, and structures of evolutionary neural networks are considered in the paper