Due to a large size of lecture theaters and associated multiple sound sources, the common beamforming techniques cannot be straightforwardly applied in those environments. Other difficulties include significant propagation delays between the microphones and the directionality mismatch between speakers and microphones. These problems are particularly emphasized in the distance lecturing environm...

This paper presents a system of speaker localization for a purpose of speaker tracking by camera. The authors use the information given by the two microphones, placed in opposition, to determine the position of the active speaker in trying to supervise the audio-visual recording. To achieve the speaker localization task, the authors have proposed and employed two methods, which are called respe...

This paper presents a self-supervised method for detecting the active speaker in a multi-person spoken interaction scenario. We argue that this capability is a fundamental prerequisite for any artificial cognitive system attempting to acquire language in social settings. Our methods are able to detect an arbitrary number of possibly overlapping active speakers based exclusively on visual inform...

To achieve the ambitious targets of net-zero greenhouse gas emissions by 2050, there is a need for change in all parts society, industry, and mobility, as well energy sectors. For this purpose, sector coupling plays crucial role, e.g., form electricity with heat using power-to-heat systems. In article, effects integration intermittent wind via direct cable, boiler into district heating systems ...

<span>An island is a section of the electrical grid that contains producing assets and loads are separated from main powered by these generators, such as solar systems, with voltage frequency maintained at nominal levels. It's worth noting concept islanding linked to time. When inverter detects an isolated activity for particular period time, compelled decouple general grid, according cri...

Power quality and neutral section are two technical problems that hinder the development of electrified railway to high-speed heavy railway. The co-phase power supply technology is one best ways solve these problems. At present, a V type connection traction transformer widely used in frequency single-phase AC system, especially In this paper, new system for based on proposed. One winding as mai...

The best sources for energy production are renewable such as wind, solar, tidal energy, and other sources, which ensure the sustainability of power generation life even avoid problems producing from fossil fuels combustion, leads to air pollution, climate change, many problems, but main problem that facing Especially in developing countries, Yemen is lack a database sufficient information know ...

Two types of linear congruent.ial random number generator are considered: the conventional one using integer arithmetic and another using polynomial arithmetic over finite fields. We show t.hat most of the long-period random number generators currently used or recently proposed, which include multiple re.:ursive generators, shift register generators, add-with-carry and subtract-with-borrow gene...

Different driving forces push the electricity production towards decentralization. The projected increase of distributed power generation on the residential level with an increasing proportion of intermittent renewable energy resources poses problems for continuously matching the energy balance when coordination takes place centrally. On the other hand, new opportunities arise by intelligent cl...