Abstract: A beam frame for a bumper back beam of a vehicle includes: a front plate and a rear plate which have a plate shape and are spaced in parallel to each other; a pair of end girder plates which function as connection bridges for integrally connecting the front plate and the rear plate, each of the end girder plates being connected to the front plate at a first connection angle therebetween and connected to the rear plate at a second connection angle therebetween; and an inner girder plate disposed between the end girder plates, connected to the central point of the width of the front plate at a right angle, and connected to the central point of the width of the rear plate at a right angle.

Abstract: A keyboard and mobile device are provided that include a plurality of keys installed in the keyboard or mobile device, and a radio frequency antenna device mounted below the plurality of keys.

Abstract: A portable electronic device equipped with a protective cover is provided. The portable electronic device includes a protective cover that is equipped with a reflector having a light reflection characteristic, a proximity sensor that is equipped with a light emitting unit and a light receiving unit, and that is configured to generate a sensing signal based on an amount of light that the light receiving unit receives in response to light emitted from the light emitting unit, and a controller that is provided with the sensing signal generated from the proximity sensor and that is configured to determine whether the protective cover is open or closed.

Abstract: A portable electronic device equipped with a protective cover is provided. The portable electronic device includes a protective cover that is equipped with a reflector having a light reflection characteristic, a proximity sensor that is equipped with a light emitting unit and a light receiving unit, and that is configured to generate a sensing signal based on an amount of light that the light receiving unit receives in response to light emitted from the light emitting unit, and a controller that is provided with the sensing signal generated from the proximity sensor and that is configured to determine whether the protective cover is open or closed.

Abstract: A keyboard and mobile device are provided that include a plurality of keys installed in the keyboard or mobile device, and a radio frequency antenna device mounted below the plurality of keys.

Abstract: Disclosed herein is a reference electrode including an electrolyte containing an optically-active material, including: an electrode body provided at an end thereof with an electrolyte separation membrane and charged therein with an optically-active material and an electrolyte solution; an inner electrode disposed in the electrode body to be immersed in the electrolyte solution; and an absorbance measurement probe for transmitting light to the electrolyte solution and collecting reflected light waves, which is disposed in the electrode body to be immersed in the electrolyte solution. Since the concentration of an electrode reaction material, such as Cl?, in the electrolyte is calculated using the absorbance of the electrolyte solution containing the optically-active material, the change in potential of the reference electrode can be properly corrected even when the reference electrode is exposed to a test environment for a long period of time and thus the concentration of the electrolyte changes.

Abstract: A device and method for using a rotating key on a mobile terminal is provided. The mobile terminal includes a plurality of dome switches which can detect a contact signal when pressed and a plurality of contact surfaces which can detect the position of the rotating key in each direction of rotation. The device and method comprises a folder opening/closing sensor for detecting whether a folder of the mobile terminal is opened or closed; first and second display sections for displaying menus or data according to the operation of the rotating key; and a control section for controlling the mobile terminal to display a menu or data selected by the operation of the rotating key on the first display section or the second display section according to an output from the folder opening/closing sensor.

Abstract: Disclosed herein is a reference electrode having a self-calibration function, which is used in electrochemical measurement and whose measurement accuracy can be maintained for a long period of time. Also disclosed is an apparatus for automatically correcting electrochemical potential using the reference electrode. The apparatus comprises: a reference electrode, comprising an external electrode body having an electrolyte membrane at one end thereof and an electrolyte solution filled therein, and at least two electrically isolated internal electrodes which are disposed in the external electrode body in such a manner that they are immersed in the electrolyte solution; and a reference potential calibrator for applying AC voltage to the internal electrodes to measure the electrical conductivity of the electrolyte solution of the electrolyte solution and output a correction signal about the change in the reference potential of the reference electrode.

Abstract: Disclosed herein is a reference electrode including an electrolyte containing an optically-active material, including: an electrode body provided at an end thereof with an electrolyte separation membrane and charged therein with an optically-active material and an electrolyte solution; an inner electrode disposed in the electrode body to be immersed in the electrolyte solution; and an absorbance measurement probe for transmitting light to the electrolyte solution and collecting reflected light waves, which is disposed in the electrode body to be immersed in the electrolyte solution. Since the concentration of an electrode reaction material, such as Cl?, in the electrolyte is calculated using the absorbance of the electrolyte solution containing the optically-active material, the change in potential of the reference electrode can be properly corrected even when the reference electrode is exposed to a test environment for a long period of time and thus the concentration of the electrolyte changes.

Abstract: Disclosed is a method of in-situ monitoring a reduction process of uranium oxides by lithium metal, wherein a conversion yield of uranium metal from uranium oxides upon production of uranium metal through a reaction of uranium oxides (UOx, x?3) with lithium metal in the presence of a high-temperature molten salt is measured according to an electrochemical analysis based on an oxidation of an oxygen ion and a reduction of a lithium ion dissociated from lithium oxide obtained as a by-product of the reaction, by use of a measuring device composed of a potentiostat/galvanostat and a reactor provided with an anode and a cathode. The in-situ monitoring method of the current invention is advantageous in terms of fast and simplified measuring techniques, by directly measuring the reduction process of uranium oxides at the anode and cathode connected to the potentiostat/galvanostat in the presence of the high-temperature molten salt.

Abstract: Disclosed are a method of reducing spent oxides nuclear fuel to nuclear-fuel metal, in which metal oxides are reduced to metals using an electrochemical reduction device with LiCl—Li2O salt as an electrolyte, a cathode electrode assembly used in the method, and a reduction device including the cathode electrode assembly. The method is advantageous in that the process of reducing the spent oxide nuclear fuel to the nuclear-fuel metal and another process of recovering Li are united to simplify the whole processes, direct use of high oxidative Li metals is excluded to secure safety, and conversion efficiency of the spent oxide nuclear fuel is 99% or more.

Abstract: A device and method for using a rotating key on a mobile terminal is provided. The mobile terminal includes a plurality of dome switches which can detect a contact signal when pressed and a plurality of contact surfaces which can detect the position of the rotating key in each direction of rotation. The device and method comprises a folder opening/closing sensor for detecting whether a folder of the mobile terminal is opened or closed; first and second display sections for displaying menus or data according to the operation of the rotating key; and a control section for controlling the mobile terminal to display a menu or data selected by the operation of the rotating key on the first display section or the second display section according to an output from the folder opening/closing sensor.

Abstract: An apparatus and method for displaying a picture in a mobile terminal is provided. The apparatus and method comprises a direction detecting section comprising at least one magnet fixed within the mobile terminal and a plurality of sensors for detecting the magnet in order to detect the direction in which the mobile terminal is turned and generate a first direction detecting signal, a second direction detecting signal, a third direction detecting signal, and a fourth direction detecting signal; a control section for outputting picture data in an upright direction when the first direction detecting signal is generated, in a direction turned 90° counter-clockwise when the second direction detecting signal is generated, in a direction turned 180° when the third direction detecting signal is generated, or in a direction turned 270° counter-clockwise when the fourth direction detecting signal is generated; and a display section for displaying the picture data.

Abstract: Disclosed are a method of reducing spent oxides nuclear fuel to nuclear-fuel metal, in which metal oxides are reduced to metals using an electrochemical reduction device with LiCl—Li2O salt as an electrolyte, a cathode electrode assembly used in the method, and a reduction device including the cathode electrode assembly. The method is advantageous in that the process of reducing the spent oxide nuclear fuel to the nuclear-fuel metal and another process of recovering Li are united to simplify the whole processes, direct use of high oxidative Li metals is excluded to secure safety, and conversion efficiency of the spent oxide nuclear fuel is 99% or more.