Abstract:
A method of manufacturing a solid oxide fuel cell stack having an electrically conductive interconnect, including the steps of: (a) providing a first fuel cell and a second fuel cell, (b) providing a substrate having an iron-chromium alloy, (c) depositing a layer of metallic cobalt over a portion of substrate surface, (d) subjecting the layer of metallic cobalt to reducing conditions, (e) then exposing the remaining portion of the layer of metallic cobalt to oxidizing conditions for a predetermined time and temperature, such that the surface portion of the layer of metallic cobalt is oxidized to cobalt oxide, thereby forming the electrically conductive interconnect having a layer of metallic cobalt sandwiched between a surface layer of cobalt oxide and the layer of cobalt-iron-chromium alloy, and (f) sandwiching the substrate between the first and second fuel cells.
Abstract:
A method for activating user functions by types of input signals and a portable terminal adapted to the method are disclosed. The input means of the portable terminal generate various types of input signals. The portable terminal activates and controls particular user functions according to corresponding input signals. In a multi-tasking situation where a plurality of user functions are simultaneously used, the portable terminal can activate and control the user functions according to the particular types of input signals.
Abstract:
A dense β″-alumina/zirconia composite solid electrolyte and process for fabrication are disclosed. The process allows fabrication at temperatures at or below 1600° C. The solid electrolytes include a dense composite matrix of β″-alumina and zirconia, and one or more transition metal oxides that aid the conversion and densification of precursor salts during sintering. The composite solid electrolytes find application in sodium energy storage devices and power-grid systems and devices for energy applications.
Abstract:
A method and apparatus for displaying a search item in a portable terminal is disclosed. When an item (for example, a particular place, a route to a destination place, particular content, etc.), for which the user requests to search, is searched and displayed, the location information regarding the search item can be displayed, in steps, from a wide range (i.e., upper information) to a narrow range (i.e., lower information), thereby the user can intuitively and easily recognize the location of the search item.
Abstract:
An apparatus and method for providing a virtual private network (VPN) service based on mutual authentication are provided, the apparatus including a storage unit configured to store a first public key and a second public key; an authentication unit configured to authenticate a VPN server with the first public key and to authenticate a user device with the second public key; and a tunnel management unit configured to generate a first VPN tunnel and a second VPN tunnel to relay data between the user device and the VPN server based on the authentication of the VPN server and the user device by the authentication unit.
Abstract:
An input processing method of a mobile terminal and a device performing the same are disclosed. Information on a user facility performed by a touch event generated at an area of the mobile terminal is compared with voice sensing data collected through a microphone to perform a specific user facility. As a result, erroneous touch event and imprecision generated during the voice sensing are improved.
Abstract:
A method of manufacturing a capacitor of a semiconductor device includes forming a high-k dielectric pattern on a semiconductor substrate, the high-k dielectric pattern having a pillar shape including a hole therein, forming a lower electrode in the hole of the high-k dielectric pattern, locally forming a blocking insulating pattern on an upper surface of the lower electrode, and forming an upper electrode covering the high-k dielectric pattern and the blocking insulating pattern.
Abstract:
An exhaust heat recovery apparatus for a vehicle, may include a case having an inlet and an outlet, a heat exchange part mounted in the case, the heat exchange part, a bypass tube connecting the inlet and the outlet of the case in the case, having an inflow opening for the inflow of the exhaust gas to the heat exchange part, and allowing an exhaust gas to bypass the heat exchange part, and a variable valve installed in the bypass tube to selectively block flow of the exhaust gas through the bypass tube and induce the exhaust gas to the heat exchange part, wherein the heat exchange part includes a coolant distribution member having a plurality of coolant paths connected to and spaced apart from each other between the bypass tube and the case, and a lubricant distribution member installed in one of the coolant paths and in which the lubricant flows.
Abstract:
The present invention relates to a method of managing CPI (Copy Protection Information) for preventing unauthorized copy of encrypted content recorded on a high-density recording medium such as a BD-ROM (Blu-ray Disc ROM). In the present method, when main content data is recorded in encrypted manner, CPI that is necessary to decrypt the encrypted main content data is written in a predetermined PIC area and is also copied at least once in an area other than the PIC area.
Abstract:
A capacitor may include a lower electrode structure, a dielectric layer and an upper electrode structure. The lower electrode structure may include a first lower pattern, a first deformation-preventing layer pattern and a second lower pattern. The first lower pattern may have a cylindrical shape. The first deformation-preventing layer pattern may be formed on an inner surface of the first lower pattern. The second lower pattern may be formed on the first deformation-preventing layer pattern. The dielectric layer may be formed on the lower electrode structure. The upper electrode structure may be formed on the dielectric layer. Thus, the capacitor may have a high capacitance and improved electrical characteristics.