Abstract: Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

Abstract: Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

Abstract: Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

Abstract: Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

Abstract: Disclosed is a flux cored wire for gas shielded arc welding of high tensile strength steel, characterized in that the flux essentially consists of, with respect to the total weight of the wire: metal or ferroalloy containing at least Si, Mg and Al acting as a deoxidizing agent, the sum of the three components, Si, Mg and Al being from 0.5 to 1.5%; from 1.5 to 2.7% Mn, provided that the ratio of Mn to (Mg+Al), i.e., the value of Mn/(Mg+Al) is 3.5-5.0; from 2.5 to 9.0% TiO2 and from 0.5 to 2.0% SiO2, as a slag forming agent; and two or more components selected from the group consisting of Cr, Ni, Mo and Nb, the sum of the two or more components being 1.0-2.5%. The flux cored wire exhibits good welding workability in all welding positions, ensuring an improvement in the efficiency of welding work, and maintains high tensile strength and impact absorption energy, ensuring stability of welded structures.