Abstract: An alignment method of an electronic device includes receiving an original image including a structure for alignment, detecting lines of the structure based on the original image and performing preprocessing on the image by mapping the lines of the structure, generating three-dimensional (3D) coordinates of the structure based on one or more two-dimensional (2D) coordinates identified in the preprocessed image, and performing calibration based on the 3D coordinates.

Abstract: According to an exemplary embodiment, an alignment structure includes a connecting body, a head stick including a first head stick extending from the connecting body and a second head stick that is provided to be able to be supported from the ground by extending in a direction of the ground while being separated from the first head stick at a first angle, and a side stick configured to enable three-point support from the ground along with the second head stick.

Abstract: The present disclosure relates to a wireless power transmitter device, a wireless power receiver device, and a system for transferring power wirelessly. A wireless power transmitter device according to an embodiment of the present disclosure can include: a driving coil configured to transmit power wirelessly; a magnetic coupler mutually inductively coupled with the driving coil; and a resonance frequency adjuster part configured to adjust the resonance frequency of the magnetic coupler, where the magnetic coupler can include a plurality of coils arranged in a region opposite one side of the driving coil.

Abstract: The present disclosure relates to a wireless power transmitter device, a wireless power receiver device, and a system for transferring power wirelessly. A wireless power transmitter device according to an embodiment of the present disclosure can include: a driving coil configured to transmit power wirelessly; a magnetic coupler mutually inductively coupled with the driving coil; and a resonance frequency adjuster part configured to adjust the resonance frequency of the magnetic coupler, where the magnetic coupler can include a plurality of coils arranged in a region opposite one side of the driving coil.

Abstract: Water-based adhesive emulsion compositions comprising 30 to 60 wt % water and 40 to 70 wt % non-water adhesive components (solids), the adhesive solids comprising: