Abstract: Disclosed is a method for synthesizing copper sulfide nano powder using plasma synthesis. The method comprises providing a copper compound to a plasma apparatus, adding a sulfur, and performing a plasma process with respect to the copper compound and the sulfur for synthesizing a nano copper sulfide.

Abstract: Disclosed is a method for synthesizing copper sulfide nano powder using plasma synthesis. The method comprises providing a copper compound to a plasma apparatus, adding a sulfur, and performing a plasma process with respect to the copper compound and the sulfur for synthesizing a nano copper sulfide.

Abstract: An order processing method and apparatus using a communication network are disclosed. The method includes storing service article information of business establishments in a database, receiving an information request message from a mobile terminal placing an order, which message is associated with an identification tag read by the mobile terminal, extracting a service article list of a business establishment indicated by the message from the database, creating an information response message including the extracted list, transmitting the information response message to the mobile terminal, receiving a purchase order message including order information based on the service article list from the mobile terminal, and forwarding the purchase order message to an order display terminal installed in the business establishment indicated by the information request message.