United power system and isolated power systems. Relay protection and automation. Guidelines by defining parameters of electromagnetic current transformers to ensure the proper functioning of relay protection during transients
Agricultural products, raw materials and food with improved environmental characteristics. Mineral fertilizers. Method of measurement of lead, cadmium, arsenic, nickel, mercury, chromium (VI), copper, zinc and biuret
State system for ensuring the uniformity of measurements. Convex spherical mirrors. Measurement technique of curvature radius and local departures of surfaces forms from sphericity by holographic shear interferometry
