- 21. Higher education management in Ukraine: will generation change help us transform it faster?
- (Economy and management)
- ... M., 2014. Switchmen of reform: competing conceptions of public higher education governance in Poland. University of Minnesota. Available at: <https://conservancy.umn.edu/handle/11299/181662> [Accessed ...
- Created on 03 July 2018
- 22. Regimeology of coal markets
- (Economy and Management)
- ... coal markets are in the regime of economic networks (a hybrid form) most of the time and only in cases of essential violations of demand or the offer they switch over to the market modes of price balancing. ...
- Created on 16 May 2018
- 23. Quality control of multimedia services in mining enterprises’ corporate networks
- (Information Technologies, Systems Analysis and Administration)
- ... Label Switching (MPLS) technology. Methodology. Improvement of the multimedia service quality control method in MPLS is carried out by applying algorithmic modeling methods and elements of the ...
- Created on 16 May 2018
- 24. Models of probabilistic evaluation of intensity of disconnection of overhead transmission lines caused by a lightning discharge
- (Electrical Complexes and Systems)
- ... of lightning effect on power installations. In: CIGRE International Colloquium on Lightning and Power Systems, INSA Lyon – France. 8. STO RZhD 08.026-2015. Protection from atmospheric and switching ...
- Created on 16 May 2018
- 25. Research on effect of differential-phase protection of busbars system with voltage of 110‒750 kV
- (Electrical Complexes and Systems)
- ... electrical installation organization. Kyiv, Ministry of Energy and Coal Mining of Ukraine. 4. Nitsenko, V.V., 2015. Prospects differential-phase principle to protect busbar system switchgears 110‒750 kV. ...
- Created on 06 September 2017
- 26. Three-phase power supply for resistance welding machine with corrected power factor
- (Electrical Complexes and Systems)
- ... of the transformer has a form close to rectangular. Formation of the inverter output voltage with a predetermined amplitude and frequency is done by six bidirectional switches with pulse width modulation ...
- Created on 06 September 2017
- 27. Dynamic optimization of a mine winder acceleration mode
- (Electrical Complexes and Systems)
- ... the rheostat launch of mine winder asynchronous drive when switching the rotor resistances. Regularities of influence of machine acceleration optimal duration and ratio, which determines the importance ...
- Created on 06 September 2017
- 28. Converter for frequency-current slip-power recovery scheme
- (Electrical Complexes and Systems)
- ... recovery scheme. Methodology. Solution of a set of second order linear differential equations based on the analysis of transients under switching of power gates in the converter for impulse frequency-current ...
- Created on 06 September 2017
- 29. Comparison of mechanical properties of asynchronous electric motors at various schemes of parametric control
- (Electrical Complexes and Systems)
- ... type of static mechanical properties of the asynchronous motor depends on the selected power converter circuit, the values of opening angles of the thyristors of stator and rotor switches, control mode ...
- Created on 16 March 2017
- 30. Additional losses in the stator windings of the highspeed brushless electrical machine with permanent magnets
- (Power supply technologies)
- ... Thomas, A.S., Zhu, Z.Q. and Jewell, G. W., 2009. Proximity Loss Study In High Speed Flux-Switching. Magnet Machine. IEEE Transactions on Magnetics, Vol. 45(10), pp. 4748–4751. 2. Amara, Y., Reghem, ...
- Created on 19 January 2017
- 31. Synthesis of high-voltage converter for electrotecnology
- (Electrical complexes and systems)
- ... loss reduce: the assurance of the of IGBT operation modes, which reduce current and voltage loading of the device, and allow switching the transistor with zero current or voltage, or in the case of neutral ...
- Created on 22 June 2016
- 32. A self-adaptive generic IMM data fusion algorithm
- (Information technologies, systems analysis and administration)
- ... Systems, vol. 49, no.4, pp.2323− 2339. 5. Jian Xu, Qijun Chen (2011), "Optimal control of switched hybrid systems", Proc. of Asian Control Conference, pp.1216−1220. 6. Jian Lan, Li, X.R., Chundi ...
- Created on 02 April 2016
- 33. Interrelation of electric-power parameters of the single-phase active power filter mode with parameters of the stores attached
- (Electrical complexes and systems)
- ... Hoang An (2006), “Spectral models of switching converters with variable switching frequency”, Electrichestvo, no.4, pp. 41–49. Остренко В.С. Визначення кращого типу IGBT модуля для застосування ...
- Created on 06 November 2015
- 34. The component choice for the induction motor field oriented control system
- (Electrical complexes and systems)
- ... relations for the correct choice of the generating control signal devices and for the parametric choice of power switches were obtained. The experimental investigation, which confirmed the result accuracy, ...
- Created on 05 November 2015
- 35. Influence of suction head of high-pressure sump water jet apparatus on their characteristics and parameters
- (Geotechnical and mining mechanical engineering, machine building)
- ... ideas and recommendations, the cost-effective option is to use a static head (without special compulsory increase of suction flow velocity). Two-stage scheme of an apparatus with a low-pressure preswitched ...
- Created on 14 January 2015
- 36. Study of miners working conditions on dust factor in mine tunnels at manganese dressing plants
- (Environmental safety, labour protection)
- ... an hour long intensive ventilation of the tunnel had been held; air dust content was reduced to the background value of 0.4; and then the booster fan was switched off. On the roadway floor in the zone ...
- Created on 13 November 2014
- 37. Electromagnetic processes in the electric model of cenrtifugal pump
- (Electrical complexes and systems)
- ... the converter scheme under consideration and the complex algorithm of switching current by valves, the analysis was conducted for two time intervals: switching and out switching. We obtained analytical ...
- Created on 10 July 2014
- 38. Characteristic of monostable actuator starting
- (Electrical complexes and systems)
- ... taking into account the equation on-off electric circuit coil and equation of motion of reduced mass armature. We have obtained the dynamic characteristics of the monostable actuator vacuum switch of medium ...
- Created on 24 December 2013
- 39. Numerical calculatin and circuit interpretation of transients in electric circuits
- (Power supply technologies)
- ... The circuit model allows us to switch from electric circuit, where the processes are described by means of integro-differential equations, to the equivalent circuit with the current displayed as vectors. ...
- Created on 17 October 2013
- 40. New generation of explosion-proof electrical equipment complex for mining industry power supply systems
- (Electrical complexes and systems)
- ... and mine electric equipment with 500 V and higher voltage. Switching devices with sealed and vacuum arc chutes with the service life of 5–6 and more years were designed. New ways, methods and technical ...
- Created on 19 December 2012