The study refers to questionnaires in which on the basis of scoring of each question, it can be concluded about a formulated research hypothesis. The following paper examines ways of developing, instituting and analyzing surveys in order to accept or reject stated hypothesis. In particular the focus is on measuring credibility of answers provided by participants in the survey. Each answer is scored along two criteria: person’s credibility and significance of the question. The final score is a weighted average of those two variables. This method is particularly useful in surveys when anonymity of participants is not sufficient to guarantee a credible response

The need of being competitive and will to meet clients’ needs makes organizations form mining branch improve their actions. There is a wide variety of system-like solutions for such organizations, such as: quality management system, environment management system, and security and safety management system and social responsibility system. The tendency of implementing and connecting some of the above mentioned solutions has resulted in the integrated management systems. An organization which is prepared in such a way often decides for the next step which allows for self-improving even more efficiently, which in turn results in a quicker reaction to clients’ needs- the implementation of process-like attitude. The process-like attitude allows to identify weak elements of organization as well as help to improve them and identify those which should be included in an organization

The article characterises the properties of steam and special thermal oils as the basic heating media on motor ships. The features of the heating installations have been presented with the particular attention drawn to thermal oil installations in which exhaust gas heaters have been employed. Also an example of the comparative exergetic analysis has been included demonstrating the comparison between steam generation in exhaust gas boiler and oil heating system in the heater, assuming the identical heat flux transferred in the boiler and the heater from the exhaust gas to the heating medium (steam and thermal oil) and assuming identical increase of exhaust gas entropy in the heat exchangers under examination

Most of modern companies implement to the management principles known as “lean”. One of the methods proposed by Lean Management is a TPM (Total Productive Maintenance). There are applications of this method in relation to production systems. TPM can also be used to improve the quality of internal transport systems. The article presents the basic principles of TPM used in the method, as well as its use in stock products ready for distribution and in division of the car wipers

This article focuses on the sources of conflicts between a traffic maintenance department and production department which are very often unidentified by managers of an organization. These conflicts lead to the reduction of affectivity of an enterprise thus, the authors of this article tried to indicate all causes which result in an inappropriate cooperation between them. The identification of these problems and their analysis will let the organization take actions, which will improve the cooperation between two closely cooperating departments which, in turn will result in bigger effectiveness. The analysis of the problem was conducted in one of production company in Silesia voivodeship

This article is a trial to describe an author’s research method of measurement of an inside client’s satisfaction where in an enterprise, a inside client is production departments whose satisfaction with traffic maintenance staffs is to be assessed This method is based on a questionnaire survey which is conducted by means of two specialty prepared questionnaires. The first questionnaire refers to a production department’s satisfaction with actions taken by traffic maintenance staff and the second allows to assess the abilities of realizing tasks by traffic maintenance department in an organization. The obtained results, after analysing, allow to point out areas where repair actions should be taken or actions which are to improve the cooperation between analysed departments. This method is still at the stage of testing

The paper is characterized by efforts to create a business model of enterprise software and technical documentation. The author points out that the overriding factor is to identify actions to modeling, which defines the scope of the project. In mapping the organization and construction of scenarios of business processes is of paramount importance dictionary of phrases and descriptions of domain rules of correctness for the recording and processing. The author describes the key process models, partial (procedures) and elementary (the workflow map.) This indicates the suitability of BPMN and UML notation in the record of the mapping rules and modalities for the functioning of the organization and in the description of static and dynamic structure of the system. Pointing to the integration of business process management system architecture author assesses the suitability of the chosen modeling notation

The article presents the main international legal regulations and technical requirements on ship recycling. The initial part of the article describes the international context of the genesis problem and the efforts of international institutions in regulating the practices associated with the disposal and recycling of ships. Later in the development of policies which set out the International Maritime Organization by the recycling of ships and briefly characterizes the main international regulations in this regar

The article herein presents the example of production solution during performance of additional, big and prestige production task. This task was conducted simultaneously to a current ordinary production in a determined time, with existing production area, machines, technological capacity and existing number of human resources. It shows solutions that were applied for additional production contract in a situation of full capacity load of current production

In this paper, we examine sources of optical radiation and the effects of interaction of specific types of optical radiation i.e. ultra-violet, visible and infra-red, on a human organism. Next, the current criteria for assessing optical radiation hazards and contemporary measurement methods for establishing the total and effective intensity of irradiation with ultra-violet radiation, as well as the intensity of irradiation with infra-red and visible radiation. In the following section, examples of temporary working posts for welders were presented, as used during maintenance works aboard ships. Measurement results for optical radiation at the selected working post were then quoted, accounting for three specific exposure times. The last section contains conclusions drawn from measurement results and interviews with a group of ship hull welders

A physical model of laser welding process is presented. At the beginning of this paper a short characteristic of correct modelling procedure is shown. In the further part, the form of heat transport in laser welding is described. Also the cylindrical-involution-normal (C-I-N) heat source (H-S) model and the Fourier – Kirchhoff partial differential equation are made and discusse

The internal fixation of maxillofacial fractures with plates and distracters has gained growing popularity during the last decades. The design of implants for fracture fixation has undergone a gradual evolution over the years as researchers have tried to facilitate healing and decrease the rate of complications. Osteolysis is one of the foremost problems limiting the survival of current implantation procedures. It is induced by the wear particles and corrosion products which incite an inflammatory response resulting in bone resorption and eventual loosening and failure of the bone fixation. The future research will help to limit the effects of wear particles by identifying the most suitable bearing surfaces. The pathologic cascade of events triggered by wear particles may be a potential site of action for drugs intended to prevent or check the progression of the disease. The paper presents a damages problems of the maxillofacial plate fixation. The surface failure at plate stabiliser elements showed typical damages for this system. Damages of screw’s steepl heads as well as the surface layers failure of the the coned seat on tie plates were observed. The surface failure at a screws were visible in a lesser degree. The biggest wear areas are visible on the cooperating surfaces of the plate sockets and the bone screw heads. Many types of damage characteristic of processes of corrosion damage and tribological wear, mainly abrasive, adhesive, and fretting wear, are observed here

The article presents the basic notions and definitions of systems security. The model of threats for systems security and a general model of a safe system (i.e. secured against outside and inside threats) were discussed. The problem of systems security management, considering particularly the management of risk, was define

The article is showing selected aspects of the production, quality control and analysis of reasons for appearing material defects in termoisolation elements. On samples chosen for examinations an inspection appearing of defects was conducted. A production method and a quality semi finished products were analysed with respect to the influence on coming into existence defects

This article presents the use of Pareto’s method and Ishikawa’s diagram for analyzing flaws which occur in a hydraulic prop produced for the mining industry. The study has pointed out that a human’s mistake and badly matched materials are the reasons of occurred incompatibilities. Correcting measures were proposed in the conclusions