The article discusses criteria for the assessment of exposure to visible radiation (blue light), methods of measurement of radiation exposure and hazards during welding. Then, the author presents the results of measurements of exposure to visible radiation in the electrical and gas welding. Based on the results of these measurements the occupational risk for the studied positions has been determine

This article discusses possible applications of correlation calculus as a universal tool enabling verification of a procedure for correct selection of elastic support system. Such system is used in measurements values of roundness deviations of main crankshaft bearing journals and assessment of shape correctness of measured roundness profiles. These profiles can be mathematically represented as a sum of terms of a Fourier trigonometric series

The author presents the results of research aimed at determining the best conditions of supporting large and elastic machine elements such as crankshafts. A number of simulation tests were performed with variable shaft support conditions changed using the author’s system of elastic support of crankshafts. The selection criteria were established for support parameters. Meeting these criteria guarantees that shaft elastic deflections and strains are eliminated. Consequently, such strains will not affect the estimation of geometrical deviations of the measured object

The management problem is especially important due to the risk of enterprise bankruptcy under a market economy. Management by a business risk and to economic stability and safety of enterprise. Now, different methods are used in order that to prevent enterprises’ bankruptcy on the basis of prognoses and safety of risk methods, among from that, maybe, would be marked the following to those: method of DuPont, model of Altman, model of Olson, statistical methods well-known as the “Winnings” methods. The practical use of these models gave us a high result in case of small and middle enterprise. In every model the used discoveries are undertaken from the documents of the official financial reporting. The article analyzes mathematical methods and algorithms used to evaluate financial stability of an enterprise, such as the Altman Z-Score model. The models are designed to evaluate enterprise bankruptcy risks. The central concept is evaluation of the enterprise bankruptcy risk and presentation of an automated risk calculation system

Observational sensors, such as CCTV cameras and radars, are part of the RIS system. These sensors should provide information about the current situation on the waterway and to a greater extent – aquatory. Barriers for the observational sensor, in the sense of reducing the view field, are various objects in the aquatory. This is one of the main factors that make it difficult to determine the proper location of the sensor. Currently, in order to increase the efficiency of determining the locations of the observational sensors are used different tools for performing spatial analysis. This applies to both the initial geographical identification as well as detailed analysis. Analysis efficiency, in turn, depends on the model of the environment, represented in the form of the Digital Surface Model. Given the complexity of some geographic features, it should be used the appropriate methodology for the visibility analysis, as well as the preparation of the input material. The following work includes the theme of visibility analysis on inland waters, with special emphasis on the complex objects. They include bridges, cranes, buildings, high vegetation and other engineering structures

Methods of extension of abilities of semantic analysis of text models by introduction of additional semantic parameters, which come out of basic semantic parameters are researched. The structural components of models are reviewed and they are a base on which methods of extension of abilities of of text models analysis are researched. Basing on use of structural components of text models external semantic parameters are introduced, which also extend abilities of analysis of those models

The article presented the results of the reduction of nitrogen oxide in exhaust gases of Diesel engines used in fishing boats and vessels. For this purposes was used preliminary fuel treatment that takes place directly in the fuel injector and mixture of Diesel oil with water

The article presented non destruction method and results of using thermal method in diagnostic of marine plant operation of fishing fleet vessel

Cruise ship tourism is an important segment of the maritime tourism market. “Cruising, according to CLIA (Cruise Line International Association), is one of the safest, most affordable and enjoyable vacation experiences available today and the industry continually reviews best practices and develops innovative technologies to further strengthen its safety record. A record 20 million – plus global passengers went on a cruise in 2012” [1]. In addition, this branch of industry has also generated thousands of jobs at sea and in the ports of calls and has brought huge incomes for local economies in visited tourist destinations. The main objective of this article is to assess the state of development of cruise ships tourism in Poland. In the first part of the article, there are included analysis of the number of cruise ship calls and passengers and there were also presented the largest cruise vessels that have visited seaports in Poland. There is also described the state of preparation of the seaports in Poland to support cruise ships. Moreover, there are also discussed the scope of services of the seaports in Poland, offered to ship-owners and a range of fees which must be borne by them. In addition, there are presented entities involved in handling of cruise ships while staying at the seaports. The article ends with a summary where it was indicated, inter alia, the reasons for the decreasing trend in the number of calls of cruise ships in Polish seaports

It is indisputable that the main conditions for acceleration of the national economy growth involve an objective evaluation of the contribution of innovative projects to the increase of national wealth (NW) of a country and recognizing those contributions as income of science and technology enterprises. This paper on the basis of a specific example presents the grounds for the justification and a methodology of determining a market price of an R\&D project, the economic effectiveness of scientific and technical activities, as well as the contribution of such activities into raising country’s national wealth (NW)

A country’s economic growth is not possible without production growth. However, the evaluation of the economic growth so far has failed to correctly reflect forthcoming economic processes. Improper assessment of economic results has led to the inflation rise and unemployment increase. The use of the method recommended in this paper would enable to avoid that negative effect

The following paper describes functionality of navigation systems interfaces in the newly developed shiphandling simulator for the inland navigation (called InSim) at Maritime University of Szczecin. It is based on analysis of radar interface and conning touch screen that has been designed for the simulator

The following article presents a brief overview of research regarding driver behaviour in simulated situations of accident risk. The research carried out within a research work N N509 549 040 included an accident situation involving the sudden intrusion of a pedestrian into the road area from behind a curtain either from the left or right side. This paper presents and analyses a variety of registered driver behaviours to simulated risk accident situations and drivers’ reaction parameters

This article is a description of the construction of dummies used in crash tests of vehicles. Dummies are classified according to their use in different types of crash tests. The noticeable improvement in the construction of dummies, their properties and similarity to humans man, is clearly visible referring to first dummies with modern ones

The paper presents an innovative computer programs “Kalkulator” and “Sekwencja” for planning and simulation of cargo handling operations and the exchange of ballast water for bulk carrier B-517 series. The software is designed to develop and simulate particular loading stages based on the loading programs or water ballast exchange plans. The programs presented in article show new trends in development of loading calculators