The internal electro-hydraulic servo system of a hydraulic press is affected by the non-linear friction, and it becomes non-linear, unstable under vibration.In this study, the dynamic behavior and control of such a system were investigated.A mathematical model was first built and then proportional-integral-derivative control and sliding mode contro
AbstractTechnological cumulativeness is considered one of the main mechanisms for technological progress, yet its exact meaning and dynamics often remain unclear.To develop a better understanding of this mechanism, we approach a technology as a body of knowledge consisting of interlinked inventions.Technological cumulativeness can then be understoo
The peculiarities of the development of tourism at Yavoriv National Natural Park (YNNP) are highlighted, tourist and resource potential of the park is evaluated.YNNP – nature-protected, recreational, cultural and educational, scientific and research institution of national importance, Sheetmetal Drill Set established to preserve, reproduce and ef
Given the growing approval of peacekeeping operations by the UN Security Council and the possibility of war crimes and crimes against humanity by peacekeepers in the area under operation, it is imperative that these forces be criminally accountable for their actions during their mission.In fact, the importance of accountability of these forces for
The influence of fast neutron irradiation on the structure and spatial distribution of Ge nanocrystals (NC) embedded in an amorphous SiO2 matrix has been Circulation Hose studied.The investigation was conducted by means of laser Raman Scattering (RS), High Resolution Transmission Electron Microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XP