Abstract: An antenna package according to an embodiment of the present disclosure includes a first antenna device including a first antenna unit, a first circuit board electrically connected to the first antenna unit, a second circuit board electrically connected to the first circuit board, a second antenna unit integrated with the second circuit board, and an antenna driving integrated circuit chip mounted on the second circuit board and electrically connected to the first antenna unit and the second antenna unit. Multi-axial radiation is implemented using the antenna package with high efficiency and reliability.

Abstract: The present invention relates to a heavy equipment having an oil pollution degree diagnosing function, and an oil pollution degree measuring system on a network using the same, and an operation method, and in particular to a heavy equipment which is capable of measuring a pollution state of an engaging chain heavy equipment oil of a complicated hydraulic apparatus based on a phenomenon that an intensity of a transmitting light is different based on the amount of a pollution particle contained in an oil by transmitting a sensor light into an oil which circulates in a heavy equipment which is driven by a hydraulic system, and an oil pollution degree measuring system on a network, and an operation method of the same which are capable of diagnosing an oil measuring value of each heavy equipment in a remote server and informing an oil exchanging time and an abnormal state of a hydraulic system.

Abstract: The present invention relates to a heavy equipment having an oil pollution degree diagnosing function, and an oil pollution degree measuring system on a network using the same, and an operation method, and in particular to a heavy equipment which is capable of measuring a pollution state of an engaging chain heavy equipment oil of a complicated hydraulic apparatus based on a phenomenon that an intensity of a transmitting light is different based on the amount of a pollution particle contained in an oil by transmitting a sensor light into an oil which circulates in a heavy equipment which is driven by a hydraulic system, and an oil pollution degree measuring system on a network, and an operation method of the same which are capable of diagnosing an oil measuring value of each heavy equipment in a remote server and informing an oil exchanging time and an abnormal state of a hydraulic system.

Abstract: The present invention relates to a wear resistant materials having excellent wear resistance and a method of manufacturing the materials, comprising a process that lugs are formed on surface by electro-sparking welding apparatus having a vibrator, and a process that coats solid lubricant layer having wear resistance on the said lugs (ref. FIG. 3).