Abstract:Companies of today must have their processes set in a way to fully use their capacities. It especially means efficient work, slimming of processes, reducing costs on quality but not at the expense of customer satisfaction. Within improving its processes they must carry out such improvements which allow them to eliminate unnecessary waste in the production process. Waste occurs in every enterprise, therefore workers should constantly search for it and eliminate it to increase productivity and reduce costs. In uncovering waste it is important to note the fact that we are searching for issues and not their cause and the guilty party to punish. The ability to identify waste and eliminate its causes may be the source of great improvements. When identifying waste we distinguish between seven types of waste and we use different methods and tools of industrial engineering to eliminate them. Based on many years of experience from organizations analyses conducted through student theses and based on the reconnaissance we carried out within resolving a research task we can state, that they include e.g. 5S, SMED etc.

This paper treats the stability of two superposed gravitating streams rotating about the axis transverse to the horizontal magnetic field. The critical wave number for instability is found to be affected by rotation for propagation perpendicular to the axis about which the system rotates. The critical wave number for instability is not affected by rotation when waves propagate along the axis of rotation. The critical wave number is affected by both the magnetic field and the streaming velocity in both cases. Both the magnetic field and the rotation are stabilizing, while the streaming velocity is destabilizing.

This article defines biomass as a prospective renewable energy source, defining the main arguments of this claim. The potential for the use of biomass as an energy source is examined on the basis of calculations of cost analysis, analysis of availability of this energy source and its applicability under SR conditions.

This article analyzes the hydropower potential of watercourses inRenewable energy sources (RES) are usually presented as key energy sources in the future, but their usage is becoming more and more important even today. The key element of the energy policy in various countries is the increase of the RES share on energy production and production of heating and transport fuels in order to create the appropriate additional resources needed to meet domestic demand together with the efforts to ensure sustainable development. "It is a development that preserves the present and future generations of the opportunity to satisfy their basic living needs while not diminishing the diversity of nature and preserving the natural functions of ecosystems" (1).The basic indicator of the potential for water energy utilization is the calculation of the so called hydro-energetic potential (HEP). According to the updated Conception of the using the hydroenergetic potential of the Slovak waters, we can define the hydro-energetic potential, on theoretical basis, as the sum of the hydro-energetic potentials of all water flows in Slovakia calculated from the long-term average flows in the monitored flow profiles and from the total difference in the levels and the full efficiency of the conversion energy" (2).According to the updated concept, the total theoretical hydropower potential of water flows in Slovakia is 13 682 GWh/year (2). This overall theoretical potential represents the statistical volume whose value provides an image of the characteristics of the individual flows. Actually, it is the potential of surface water and groundwater that flows into the river as flow. Since the amount of water flowing into the troughs of all surface water depends on the configuration and geology of the terrain, it Unauthenticated Download Date | 5/12/18 10:01 AM