Abstract: There are a method and a system for virtual sensing, which predict a current operating frequency of a variable IGV control fluid device (for example, a pump, a blower) based on a metamodel. A virtual sensing method for sensing a variable IGV control fluid device operating frequency based on a metamodel according to an embodiment includes: collecting, by a communication unit, input characteristic data from a fluid device system; and predicting, by a processor, output characteristic data by applying the input characteristic data to a metamodel which is a machine learning model, and the input characteristic data is two or more of a fluid pressure (P), a fluid flow rate (Q), and an IGV angle (?), and the output characteristic data is an operating frequency (N) of the fluid device.

Abstract: Provided are an ultrasound imaging apparatus and method for displaying an ultrasound image. The ultrasound imaging apparatus includes: a display; and a processor configured to set, from among a plurality of scan lines, a plurality of scan line groups respectively corresponding to a plurality of subframes constituting a first frame, control the display to display the first frame, set, from among the plurality of scan lines, a plurality of scan line groups respectively corresponding to a plurality of subframes constituting a second frame, and control the display to display the second frame subsequently to the first frame. The processor may set the plurality of scan line groups such that a position of a boundary line between adjacent ones of the plurality of subframes in the first frame does not overlap a position of a boundary line between adjacent ones of the plurality of subframes in the second frame.

Abstract: Provided are an ultrasound imaging apparatus and method for displaying an ultrasound image. The ultrasound imaging apparatus includes: a display; and a processor configured to set, from among a plurality of scan lines, a plurality of scan line groups respectively corresponding to a plurality of subframes constituting a first frame, control the display to display the first frame, set, from among the plurality of scan lines, a plurality of scan line groups respectively corresponding to a plurality of subframes constituting a second frame, and control the display to display the second frame subsequently to the first frame. The processor may set the plurality of scan line groups such that a position of a boundary line between adjacent ones of the plurality of subframes in the first frame does not overlap a position of a boundary line between adjacent ones of the plurality of subframes in the second frame.

Abstract: The present invention is to provide a stator for external rotor type motor, enabling to manufacture a motor with a high viscosity rate by allowing a unit tooth of a stator to be partially separated from an adjacent tooth. In order to accomplish the object of the present invention, there is provided a stator for external rotor type motor, comprising: a unit yoke; and a plurality of unit modules including a unit tooth extensively formed on the unit yoke, wherein the plurality of unit modules is continuously formed in a ring shape, and the unit yoke includes a connection part connected to an adjacent unit yoke, and a dividing part separated from the adjacent unit yoke, and one unit module in the plurality of unit modules is mutually separated from the adjacent unit module by a cutting part.

Abstract: There is provided an open-type induction motor, and more particularly, to an open type induction motor in which a rotor has a structure allowing air to flow therein, thus enhancing cooling efficiency of the rotor and a stator. The open-type induction motor includes: a stator including an iron stator core having a radial duct hole and a stator coil wound around the iron stator core; and a rotor disposed in a hollow of the stator so as to be rotatable by magnetism generated by the stator coil, and including a rotational shaft, a plurality of iron rotor cores stacked in an axial direction of the rotational shaft and coupled to the rotational shaft, a rotor coil coupled to the plurality of iron rotor cores, and duct plates stacked between the plurality of iron rotor cores and outwardly discharging air present at the inner side of the iron rotor cores.

Abstract: There is provided an open-type induction motor, and more particularly, to an open type induction motor in which a rotor has a structure allowing air to flow therein, thus enhancing cooling efficiency of the rotor and a stator. The open-type induction motor includes: a stator including an iron stator core having a radial duct hole and a stator coil wound around the iron stator core; and a rotor disposed in a hollow of the stator so as to be rotatable by magnetism generated by the stator coil, and including a rotational shaft, a plurality of iron rotor cores stacked in an axial direction of the rotational shaft and coupled to the rotational shaft, a rotor coil coupled to the plurality of iron rotor cores, and duct plates stacked between the plurality of iron rotor cores and outwardly discharging air present at the inner side of the iron rotor cores.