Abstract: The present invention provides a polyimide film and a manufacturing method therefor, the polyimide film having a dielectric dissipation factor (Df) of 0.003 or less, a haze of 3.5% or less, a transmittance of 45% or greater, and a glass transition temperature (Tg) that is equal to or greater than 300° C. and is less than 320° C.

Abstract: The present invention provides a polyamic acid, polyimide film and a flexible metal clad laminate using same, the polyamic acid comprising the following components copolymerized: an acid dianhydride component comprising biphenyl-tetracarboxylic acid dianhydride (BPDA), pyromellitic dianhydride (PMDA) and p-phenylenebis(trimellitate anhydride) (TAHQ); and a diamine component comprising m-tolidine and para-phenylenediamine (PPD).

Abstract: A composition for blood coagulation testing and the use thereof, and more particularly a composition for blood coagulation testing containing a hemostatic enzyme and carboxymethyl chitosan and the use thereof, are described. The described composition for blood coagulation testing is useful to perform a blood coagulation test with high sensitivity and high speed by improving the activity of the hemostatic enzyme and clot strength and increasing the rate of fibrin formation.

Abstract: A composition for blood coagulation testing and the use thereof, and more particularly a composition for blood coagulation testing containing a hemostatic enzyme and carboxymethyl chitosan and the use thereof is disclosed. The composition for blood coagulation testing is useful because it may perform a blood coagulation test with high sensitivity and high speed by improving the activity of the hemostatic enzyme and clot strength and increasing the rate of fibrin formation.

Abstract: A window control device for a vehicle, and a method therefor, include a driving motor configured to drive a window glass, a first sensor configured to generate one pulse signal corresponding to a rotation of the driving motor, a second sensor configured to sense a voltage signal provided to the driving motor, and a controller configured to perform a safety function based on the one pulse signal generated by the first sensor and the voltage signal sensed by the second sensor. Although a fault occurs in one of two hall sensors, the window control device may normally perform the safety function.

Abstract: A window control device for a vehicle, and a method therefor, include a driving motor configured to drive a window glass, a first sensor configured to generate one pulse signal corresponding to a rotation of the driving motor, a second sensor configured to sense a voltage signal provided to the driving motor, and a controller configured to perform a safety function based on the one pulse signal generated by the first sensor and the voltage signal sensed by the second sensor. Although a fault occurs in one of two hall sensors, the window control device may normally perform the safety function.

Abstract: The present disclosure relates to an apparatus and a method for reducing noise generated in a wireless charging device. A method for reducing noise in a wireless charging device may include: outputting a pulse of a first voltage to a first coil in a first period and monitoring a variation in a response current according to feedback of the output pulse to check whether an object is located on the wireless charging device; checking whether communication with the object is possible when the object is located on the wireless charging device; and, when communication with the object is not possible, outputting a pulse of a second voltage lower than the first voltage to the first coil in the first period to check whether the object is located on the wireless charging device. Accordingly, noise generated in the wireless charging device can be reduced.