Vector-pulse control principle of AC electric drives was considered. The way to realize this method of regulation was proposed. One way of start electric drive is eliminate the negative half the time, for which the motor ...

Vibrational radial displacement of multicutter end mills with kinematic asymmetry is considered. Its influence on the shaping precision of deep narrow slots is demonstrated. © 2010 Allerton Press, Inc.

The numerical study of high-rate plasticity of Cu target with different grain sizes under the action of nanosecond relativistic high-current electron beam has been carried out in the paper. The model of microcrystal material ...

The electric drive with the synchronous electrical machine of independent excitation differs by high specific parameters, adaptability to manufacture, simplicity of a design, and reliability. These properties of the electric ...

The dipole antenna providing 13% bandwidth with VSWR lower than 1.15 is considered in the paper. The antenna is characterized by its compactness, mechanical durability, low aerodynamic resistance. The antenna can be executed ...

To minimize the amplitude of the cutting force in the turning of blanks with sinusoidal linear surfaces, the directional cosines of the chip-departure line along the cutter's front surface are determined. With known ...

This paper concerns efficient control of heating energy allocation for the purposes of heating rooms in multiple flat buildings based on wireless sensor networks. One of the main problems of wireless communication in ...

The products of the reaction of 2-alkenylthiopyridines with mercury iodide have been studied by single crystal X-ray diffraction. It has been demonstrated that the products are organomercury derivatives of salts of 2,3- ...

В результате анализа монографии А. В. Флоровского «Чешские иезуиты на Руси» был определен вклад историка в разработку вопросов истории петербургского католичества. Выяснено, что книга Флоровского является базовым ...