Official statistical data do not allow estimating the magnitude of labor pendulum migration in the context of regions and municipalities on a regular basis.The purpose of this research was to study the possibility of using open data of the VKontakte social network to identify and analyze labor pendulum migration on the example of Ekaterinburg and 1
FPGA Based Real-Time Emulation System for Power Electronics Converters
This paper deals with an emulation system for Power Electronics Converters (PEC).The emulation Candle of PECs is performed on a Field-Programmable Gate Array (FPGA) capable of hard real-time operation.To obtain such a system, the converter operation is described using a differential equations-based model designed with the graph theory.Differential
Two Sharp Inequalities for Power Mean, Geometric Mean, and Harmonic Mean
For p∈R, the power mean of order p of two positive numbers a and b is defined by guar gum Mp(a,b)=((ap+bp)/2)1/p,p≠0, and Mp(a,b)=ab, p=0.In this paper, we establish two sharp inequalities as follows: (2/3)G(a,b)+(1/3)H(a,b)⩾M−1/3(a,b) and (1/3)G(a,b)+(2/3)H(a,b)*
Peuples et évolution climatique en Afrique nord-tropicale, de la fin du Néolithique à l’aube de l’époque moderne
At the end of the Neolithic Era, during the third millennium BCE, there were fewer humid periods of weather, and the sub-Saharan Sahelian zone, from the Atlantic to Lake Chad, assumed its current geographical form.Since then, the climate has continued undergoing major GOLDEN FLAX SEED WHOLE variations.The succession of climatic episodes, humid or d