Abstract: In various aspects, it is possible to provide an optimized service to a mobile terminal and a user, without prior knowledge of a service that the user prefers to use, or without a client module of a tightly coupled configuration. The optimized service may be provided by performing a semantic negotiation based on one or more ontologies. Also, it is possible to improve user convenience by automatically performing the semantic negotiation between the mobile terminal and a service server without user intervention.

Abstract: The present invention relates to a method for manufacturing a Fe—Si alloy powder. A method for manufacturing a Fe—Si alloy powder includes: providing a mixture of an Al2O3 powder, an active agent powder, a Si powder, and a Fe powder; heating the mixture with a temperature of 700° C. to 1200° C. in the hydrogen atomosphere; magnetically separating a Fe-containing material from the mixture; and separating a Fe—Si alloy powder by soaking the Fe-containing material in an alkali solution. In the heating of the mixture, the Si powder is deposited on the surface of the Fe powder and diffused into the Fe powder.

Abstract: A refrigerator including left and right doors of rotating opening/closing type and a sliding door between the left and right doors. The left and right rotating opening/closing doors have an improved slim edge structure such that a door thickness is hidden. The sliding door includes door guards to accommodate food.

Abstract: Provided is a module and method for semantic negotiation. In various aspects, it is possible to provide an optimized service to a mobile terminal and a user, without prior knowledge of a service that the user prefers to use, or without a client module of a tightly coupled configuration. The optimized service may be provided by performing a semantic negotiation based on one or more ontologies. Also, it is possible to improve convenience of the user by automatically performing the semantic negotiation between the mobile terminal and a service server without intervention of a user.

Abstract: A refrigerator including left and right doors of rotating opening/closing type and a sliding door between the left and right doors. The left and right rotating opening/closing doors have an improved slim edge structure such that a door thickness is hidden. The sliding door includes door guards to accommodate food.

Abstract: The present invention relates to a method for manufacturing a Fe—Si alloy powder. A method for manufacturing a Fe—Si alloy powder includes: providing a mixture of an Al2O3 powder, an active agent powder, a Si powder, and a Fe powder; heating the mixture with a temperature of 700° C. to 1200° C. in the hydrogen atomosphere; magnetically separating a Fe-containing material from the mixture; and separating a Fe—Si alloy powder by soaking the Fe-containing material in an alkali solution. In the heating of the mixture, the Si powder is deposited on the surface of the Fe powder and diffused into the Fe powder.