Abstract: Provided are a vehicle card key and a method of manufacturing the same. The vehicle card key is used to lock/unlock a vehicle door or start an engine in wireless communication with a vehicle. The vehicle card key includes a lower cover, a circuit board stacked on and coupled to a top of the lower cover, and an upper cover coupled to the lower cover as one body to cover an upper side of the circuit board. The lower cover and the upper cover are formed of a thermo-hardening resin.

Abstract: Provided are a vehicle card key and a method of manufacturing the same. The vehicle card key is used to lock/unlock a vehicle door or start an engine in wireless communication with a vehicle. The vehicle card key includes a lower cover, a circuit board stacked on and coupled to a top of the lower cover, and an upper cover coupled to the lower cover as one body to cover an upper side of the circuit board. The lower cover and the upper cover are formed of a thermo-hardening resin.

Abstract: Disclosed are the methods for providing an improved process for organic sludge treatment. In the present invention, sludge is subjected to a membrane bioreactor and a fraction of sludge in the bioreactor is circulated through pretreatment devices. According to the present invention, since the biodegradability of cells in the sludge increases greatly by chemical and/or physical pretreatment, and since the solid-liquid separation and biodegradation occurs simultaneously in the membrane bioreactor, it is possible to significantly enhance sludge reduction efficiency.

Abstract: The present invention relates to a water quality measurement system based on a high performance optical fiber probe, and more particularly relates to a water quality measurement system based on a high performance optical fiber probe that immerses an optical fiber prove inducing an ultraviolet light into contaminated water distant from the measurement device, irradiates the light, collects the reflected fluorescent lights, and quantifies the contamination level using a spectrometer thereby.

Abstract: An Intermittently Decanted Extended Aeration (IDEA) process characterized in that an aeration period, a settling period and a decanting period are successively repeated in that order in a single reactor, and influent wastewater is transversely supplied at the bottom of the reactor and slowly diffused in the reactor while treated wastewater wich is intermittently discharged during the decanting period is provided. According to the process of the invention, wastewater can be efficiently treated without by-pass of wastewater under dry weather and wet weather conditions as well as stormy weather condition.