Abstract: The present invention relates to an electronic business card exchange system and method using a mobile terminal. Particularly, the present invention relates to an electronic business card exchange system using a mobile terminal and an electronic business card exchange method using a mobile terminal, wherein an electronic business card is generated and is registered in a server, business card identification information of the registered electronic business card is assigned by the server, the business card identification information is used to transmit the business card to a mobile terminal of at least one business card exchange target nearby, and the business card exchange targets receiving the electronic business cards are grouped according to any one or more among a position, a time, and a keyword, such as a meeting name, or the like, for management.

Abstract: The present invention relates to an electronic business card exchange system and method using a mobile terminal. Particularly, the present invention relates to an electronic business card exchange system using a mobile terminal and an electronic business card exchange method using a mobile terminal, wherein an electronic business card is generated and is registered in a server, business card identification information of the registered electronic business card is assigned by the server, the business card identification information is used to transmit the business card to a mobile terminal of at least one business card exchange target nearby, and the business card exchange targets receiving the electronic business cards are grouped according to any one or more among a position, a time, and a keyword, such as a meeting name, or the like, for management.

Abstract: Disclosed is a vanadium/titania-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range and a method of using the same. Specifically, this invention pertains to a vanadium/titania (V/TiO2)-based catalyst, including natural manganese ore, and a method for removing nitrogen oxides and dioxin over a wide operating temperature range, in which the WTiO2 catalyst for selective catalytic reduction of nitrogen oxides and removal of dioxin contained in flue gas includes 5-30 wt % of natural manganese ore.

Abstract: Disclosed is a vanadium/titania-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range and a method of using the same. Specifically, this invention pertains to a vanadium/titania (V/TiO2)-based catalyst, including natural manganese ore, and a method for removing nitrogen oxides and dioxin over a wide operating temperature range, in which the WTiO2 catalyst for selective catalytic reduction of nitrogen oxides and removal of dioxin contained in flue gas includes 5-30 wt of natural manganese ore.

Abstract: Disclosed are a method for preparing a catalyst, which has excellent nitrogen oxide-removal performance and resistance over a wide temperature range, and the use of the catalyst. According to the disclosed method, the oxidation number and surface defects of the catalyst are changed by applying artificial high energy through mechanical ball milling during the preparation process of the catalyst, instead of applying the addition of a precious metal, the deformation of a support and the use of a co-catalyst in order to increase NOx removal activity, such that activation energy for inducing redox reactions can be decreased.

Abstract: Disclosed is a method of preparing a vanadium/titania-based catalyst containing non-stoichiometric vanadium and titanium having excellent ability to remove nitrogen oxides at a wide temperature window, particularly, at a relatively low temperature window of 300° C. or lower.

Abstract: Disclosed is a vanadium/titania-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range and a method of using the same. Specifically, this invention pertains to a vanadium/titania (V/TiO2)-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range, in which the WTiO2 catalyst for selective catalytic reduction of nitrogen oxides and removal of dioxin contained in flue gas includes 5-30 wt % of natural manganese ore, thus exhibiting excellent activity of removing nitrogen oxides even in the low temperature range and of removing dioxin at the same time, and to a method of using the same. The catalyst of this invention has good thermal stability and thus can simultaneously manifest nitrogen oxides removal performance and dioxin removal performance superior to conventional vanadium/titania catalysts in a wide temperature range (150˜450° C.

Abstract: Disclosed are a method for preparing a catalyst, which has excellent nitrogen oxide-removal performance and resistance over a wide temperature range, and the use of the catalyst. According to the disclosed method, the oxidation number and surface defects of the catalyst are changed by applying artificial high energy through mechanical ball milling during the preparation process of the catalyst, instead of applying the addition of a precious metal, the deformation of a support and the use of a co-catalyst in order to increase NOx removal activity, such that activation energy for inducing redox reactions can be decreased.

Abstract: Disclosed is a method of preparing a vanadium/titania-based catalyst containing non-stoichiometric vanadium and titanium having excellent ability to remove nitrogen oxides at a wide temperature window, particularly, at a relatively low temperature window of 300° C. or lower.

Abstract: Disclosed is a vanadium/titania-based catalyst for removing nitrogen oxides, and a process for removing nitrogen oxides in a flue gas using the same. The vanadium/titania-based catalyst containing a vanadium trioxide and/or vanadium tetraoxide has excellent activity to remove nitrogen oxides in a wide temperature range, particularly, at the low temperature window.