Abstract: An electrolytic sterilizing apparatus comprises an electrolytic module (10) including an inlet port (11-1) disposed at one end thereof for allowing ballast water (40) to be introduced therethrough, an outlet port (11-2) disposed at the other end thereof for allowing the ballast water (40) to be discharged therethrough, a baffle unit (20) mounted at the inlet port (11-1) side for generating eddy flow, a sensor (30) mounted at the outlet port (11-2) side for measuring residual chlorine concentration, and a chamber (11) disposed between the baffle unit (20) and the sensor (30), the chamber (11) having electrode sets (12-1) mounted therein, each of the electrode sets (12-1) including a pair of electrodes (12), a power supply unit (50) for supplying power to the electrolytic module (10), and a connecting unit (60) including a pump (61) for introducing and discharging the ballast water (40), a pipe (62) connected to the pump (61), and a valve (63).

Abstract: A method and an apparatus for constructing and operating a cyber-conference in cyberspace are disclosed. The method comprises the steps of: accessing a cyber-conference operating web site provided on cyberspace; applying for registration to a cyber-conference operation server; approving the registration based on data stored on a database; and creating a cyber-conference in the cyberspace. The apparatus, which is connected to a user client and a conference client through a communication network, comprises a storage unit for storing a program, embodied on a computer-readable medium, capable of constructing and operating the cyber-conference; a database storing data related to the cyber-conference; and a server connected to the storage unit and the database.

Abstract: A method and an apparatus for constructing and operating a cyber-conference in cyberspace are disclosed. The method comprises the steps of: accessing a cyber-conference operating web site provided on cyberspace; applying for registration to a cyber-conference operation server; approving the registration based on data stored on a database; and creating a cyber-conference in the cyberspace. The apparatus, which is connected to a user client and a conference client through a communication network, comprises a storage unit for storing a program, embodied on a computer-readable medium, capable of constructing and operating the cyber-conference; a database storing data related to the cyber-conference; and a server connected to the storage unit and the database.