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The deformation of a part occurring in the process of grinding directly influences its exploitation and quality parameters. The instability of shape and size, which occurs due to an imbalance of residual stress, can be the one of the major causes of deformation of a part. The decrease in stress slows down the deformation process. Considering the regularities of heat source intensity dependence on...
The subject matter presented in the article touches the problem of incufficient efficiency of processes and systems in organisation. Achievement of adequate efficiency value is a guarantor of competitive advantage of enterprise. Therefore, it is necessary to constantly work on methods and techniques to improve efficiency, tailored to the needs of various organizations, which also includes service...
This article presents the most important aspects of the sustainable development policy and indicates the instruments that have an impact on its shaping. In addition, attention was drawn to the fact that issues related to sustainable development (mainly in the context of spatial planning and investment) and environmental protection are also discussed as leading topics in discussions on the quality...
Creating the required IT infrastructure to enable the ability for comfortable remote working is not an easy task. Improper configuration can create the possibility of taking over the whole bandwidth of the link by one device. Increasing bandwidth introduces extra costs and does not completely eliminate the problem – it will be more difficult to take over the whole bandwidth, but it is still possible...
In the article, the author presents in an expanded approach the results of previously conducted research, described in his previous publications and aimed at understanding the needs and capabilities of Polish micro, small and medium sized enterprises (MSMEs) in recognizing challenges and implementing practical solutions from the area fitted to of the Industry 4.0 paradigm. In addition to the detailed...
Currently, the user’s choice of a conical pick involves specifying its geometric and material parameters, taking into account the place and conditions of its work. The selection is then made, usually on the basis of solely one criterion, which is the price. Thus, at the stage of both purchase and operation, the quality of picks and their suitability for a specific machine and the processed mineral...
The rapid development of CAD 3D systems has led to the development of solutions enabling the physical achievement of the designed object, already at the design stage. Such a solution is the rapid prototyping method, intended for fast, precise and repeatable production thanks to additive technology. The first basic step of this method is a 3D scan. It is a technique that analyzes a real object in order...
Tax policy is associated with the use and application of taxes and their instruments, which serve to influence macroeconomic and microeconomic processes in the economy. We can derive the tax policy from the applied economic policy of the state. The objectives of economic policy are aimed in particular at strengthening the effectiveness of the market mechanism, reducing pension and property inequality,...
This paper presents the problem of technical means failure, used both in longwall reinforcement and in the mining process. Longwall reinforcement – a concept related to launching a longwall mining excavation – is one of the most important elements in the process of hard coal seams exploitation. It consists in introducing all necessary machinery and equipment to the future longwall in order to enable...
Mechanical mining is a widely used method for separating material from mined rock in the mining branch, tunnelling, road and construction industries. Depending on the mechanical properties of rocks, most often defined by uniaxial compressive strength, various machines and tools are applied. Apart from rock strength, the efficiency of the mining process is determined by abrasiveness, which affects...
The paper presents formation of the amount of methane released from a coal deposit during coal mining. The total amount of released methane is composed of the amount separated directly into the ventilation air in mines (ventilation methane) and included in the demethanation system, isolated from the ventilation air. Methane from the demethanation system is only partially utilized. The unused part...
The paper presents and describes cooling systems mainly used in industrial plants specialized in production based on injection moulding machines. Each solution is rated taking into account investment costs, technical complexity, exploitation costs and system flexibility in general. With regard to dynamically changing law regulations linked to refrigeration installations, mainly F-Gases Act, during...
The process of transformation in the Polish economy, transforming it from a planned economy into a market economy, has resulted, among others, in the liquidation of many heavy industry plants in the Upper Silesian Industrial Region (GOP). GOP cities, which grew up on the basis of heavy industry, were spatially planned according to the needs of mining and metallurgical plants. Liquidation of the plants...
The paper contains a comparative analysis of the competences needed to practice engineering in Poland and the United States (USA). Surveys of industries were conducted in Poland and the USA. Legal background of curricula was discussed. The surveys were done for the purpose of assessing the importance of competences as well as level of mastery those skills and attributes by engineering graduates. The...
The paper deals with application of soft-skills competence in practice comparing of education and employers requirements. In addition to what a graduate is to know in terms of the knowledge theoretically acquired, the labour market today defines quite clearly the specific requirements in terms of what a graduate should be able to do, provide for, organize, including the demands related to their competences...
The objective of this article is to present the results of research concerning the assessment of the actually implemented Quality Policy in social and cultural area of selected industrial enterprises. In the first part of the article, the essence of the Quality Policy and its implicational meaning for the functioning of the enterprise in the scope of quality were described. What is more, the study...
A paradox of our time is identified: on the one hand – the development of one global system (ecological, technological and social), on the other hand – the still increasing “balkanization” of science. The dynamics of this systems is a source of well-known numerous global problems. Its possibly effective solution needs adequate knowledge about the system. For this reason, counteraction to “balkanization”...
A direct influence on the physical and mechanical state of the surface layer of wedge-shaped plates made of 8KHF steel is exerted by heat generation processes developing in the zone of a high-speed thermal process. Research on the influence of the parameters of a high-speed thermal process on the change in the structure of 8KHF steel (GOST 5950-2000 Russia, standard PN/H 85023 brand NCV1 Poland) was...
This article presents the results of a simulation, testing the variation of main bearing loads and strains in crankshafts caused by geometrical deviations of the bearing system to justify the necessity and purposefulness of measurements of both the shape and axes position deviations of crankshaft journals. Measurements of these deviations at the existing level of applied measuring techniques are significantly...
Safety and quality management are very important elements of managing production and service processes. It is important not only to manage in itself, but above all to constantly improve processes and constantly strive for excellence. However, continuous improvement of the organization is one of the key principles of quality management, it states that improvement can be obtained from the analysis of...
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