Abstract: A trailing arm bush may include a cylindrical outer pipe, an inner pipe inserted to a central portion of the outer pipe at an interval, a first bush rubber unit, a second bush rubber unit and a third bush rubber unit that connect between an inner peripheral surface of the outer pipe and an outer peripheral surface of the inner pipe, respectively, a hollow void part formed between the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe, and a stopper attached to the inner peripheral surface of the outer pipe and disposed among the first bush rubber unit, the second bush rubber unit and the third bush rubber unit.

Abstract: A multi-charging and sterilizing apparatus includes a case having a slot unit on one surface thereof; a plurality of slots defined in the slot unit such that a plurality of objects are inserted into and mounted in the plurality of slots; and ultraviolet sources disposed in the respective slots to irradiate ultraviolet on front surfaces and rear surfaces of the objects.

Abstract: An apparatus for generating gray scale voltage includes a brightness/color coordinate correction unit having a gamma table including data corresponding to an image displayed on a pixel unit of an OLED device at a first brightness level, and a gamma reference voltage look-up table including voltage values of red, green, and blue data corresponding to each gray scale and brightness values at the first brightness level in accordance with the gamma table, a gamma control signal output unit configured to output a gamma reference voltage control signal corresponding to a second brightness level in accordance with the gamma table and the gamma reference voltage look-up table, and a gamma correction circuit configured to receive the gamma reference voltage control signal, to generate gray scale voltages corresponding to the second brightness level, and to output the generated gray scale voltages to a data driver.

Abstract: Disclosed herein is a method for preparing a multilayer metal complex having excellent surface properties. Specifically, the present invention relates to a method for preparing a multilayer metal complex having a low cost metal-core/noble metal-shell structure, which has a high mass fraction of noble metals and exhibits excellent surface properties and dispersity.

Abstract: Silicon slurry for anode active materials of secondary batteries is provided. The silicon slurry includes silicon particles and a dispersion medium. The silicon slurry satisfies dispersion conditions of 1?D90/D50?2.5 and 2 nm<D50<180 nm, where D90 denotes an average diameter of the silicon particles at 90% of cumulative particle size distribution, and D50 denotes an average diameter of the silicon particles at 50% of cumulative particle size distribution.

Abstract: A Radio Frequency (RF) duplexer including Bulk Acoustic Wave Resonators (BAWRs) and an RF filter including BAWRs are provided. The RF duplexer may convert the received signal into a balance signal and output the balance signal via a dual-output port. The RF duplexer may also include a BAWR receiving filter unit including an input end to receive the balance signal from the dual-output port, and an output end used for dual output. The RF duplexer may also include a BAWR transmitting filter unit to transmit a transmitted signal to the antenna via a single-output port.

Abstract: Provided are low pass filters using a bulk acoustic wave resonator (BAWR). A low pass filter may include an input terminal configured to be connected with a first radio frequency (RF) device, an output terminal configured to be connected with a second RF device, a parallel segment including a first BAWR, a third BAWR, and a fifth BAWR that may be connected in parallel with each other to a reference potential, a first series segment having a second BAWR and a first inductor, and a second series segment having a fourth BAWR and a second inductor, and connected in series with the first series segment.

Abstract: The Si-block copolymer core-shell nanoparticles include: a Si core; and a block copolymer shell including a block having relatively relatively high affinity for Si and a block having relatively low affinity for Si and forming a spherical micelle structure around the Si core. Since the Si-block copolymer core-shell nanoparticles exhibit excellent dispersibility and stability in a mixed solution including the same, the Si-block copolymer core-shell nanoparticles are easily applied to an anode active material for lithium secondary battery by carbonization thereof.

Abstract: A fuel cell system including a fuel cell stack having a plurality of unit cells is provided. A method of driving the fuel cell stack is also provided. The method may include supplying a fuel to a fuel cell stack, supplying an oxidizer to the fuel cell stack, controlling supply of the fuel and the oxidizer to operate the fuel cell stack, calculating a total operation time of the fuel cell, and/or varying a stack activation period in which the oxidizer is blocked to the fuel cell stack according to the total operation time and a stack activation cycle of which the stack activation period is generated.

Abstract: A method of driving a fuel cell system is disclosed. The method of driving the fuel cell system may include supplying water to a reformer by pressing a pump pipe to pressing members to move the pressing members in a first direction, stopping power generation including stopping a supply of fuel and oxidant to the reformer, and discharging water in the reformer by moving the pressing members in a second direction opposite to the first direction while pressing the pump pipe with the pressing members. A fuel cell system is also disclosed. The fuel cell system includes a reformer, a fuel cell stack and a water transferring pump. The water transferring pump includes pressing members and a pump pipe. The pump pipe is in fluid communication with a water transferring pipe.

Abstract: A battery pack includes a plurality of secondary batteries, the plurality of secondary batteries including at least a first secondary battery and a second secondary battery, a first pack case having an accommodating portion on which the plurality of secondary batteries are mounted, and a plurality of bus-bars electrically connecting the plurality of secondary batteries together, the bus-bars having a “?” shape, the plurality of bus-bars including at least a first bus-bar and a second bus-bar, the first bus-bar being coupled to an end of the first secondary battery, the second bus-bar being coupled to an end of the second secondary battery and facing the first bus-bar.

Abstract: There is provided a boost converter capable of reducing voltage stress within each element thereof, without using a separate loss snubber circuit, by clamping a voltage applied to an output diode to correspond to a difference between an input voltage and an output voltage. The boost converter includes a transformer including a primary winding receiving an input power and a secondary winding electromagnetically coupled to the primary winding and having a preset turn ratio therewith; a switching unit switching the input power transferred to the primary winding on and off according to a preset duty ratio; a stabilizing unit including an output diode rectifying the power outputted from the secondary winding to stabilize an output power; and a clamping unit clamping a voltage applied to the output diode to correspond to a difference between the input power and the output power during a switching on operation of the switching unit.

Abstract: Disclosed is a balun including a film bulk acoustic resonator (FBAR). The balun may be implemented using the FBAR to fabricate a small sized balun. Also, the balun may be implemented using the FBAR, thereby reducing a difference in two outputs.

Abstract: Provided is a structure and disposing method of a radio frequency (RF) layered module using three dimensional (3D) vertical wiring. A first wafer in the RF layered module having the 3D vertical wiring may include a first RF device and at least one first via-hole. A second wafer may include a second RF device and at least one second via-hole disposed at a location corresponding to the at least one first via-hole. A vertical wiring may connect the at least one first via-hole and the at least one second via-hole. The vertical wiring may be configured to be connected to an external device through a bottom surface of the at least one first via-hole or a top surface of the at least one second via-hole.

Abstract: A fuel cell system includes a fuel cell stack, an oxidizer supply unit, a reformer, a fuel tank, and a water tank. The reformer generates a hydrogen-containing reformed gas reformed from hydrocarbon-based fuel and supplies it to the fuel cell stack. The fuel tank supplies the hydrocarbon-based fuel to the reformer. The water tank supplies water to the reformer. The reformer includes a reforming unit configured to have a reforming reaction generated therein, a combustion unit configured to supply heat energy to the reforming unit, and a carbon monoxide reduction unit configured to reduce the concentration of carbon monoxide in a reformed gas discharged from the reforming unit. A combustion gas pipe is connected to the combustion unit. A reformed gas pipe is disposed between the reforming unit and the carbon monoxide reduction unit.

Abstract: A hybrid combination structure of a roof frame is provided. In particular, the hybrid combination structure of a roof frame is configured to include a roof frame made of a plastic material, a front reinforce panel made of a steel material and mounted at a front of the roof frame, a center reinforce panel made of a steel material and mounted at a middle of the roof frame, and a rear reinforce panel made of a steel material and mounted at a rear of the roof frame to provide the integral roof frame in which steel and plastic are combined with each other, thereby improving sag and torsion problems to improve support rigidity and reducing weight and costs to improve a value of the product.

Abstract: The present invention relates to glasses having a leg which can be detachable from a connector of an eyeglass frame (10), wherein the invention comprises: a connecting rod (20) which is formed on a side of said eyeglass frame (10), and has a hinge groove (21); a leg (30) having a hinge end (31), which is inserted into the hinge groove (21) of said connecting rod (20) and is rotatable therein; and magnets (40) which are respectively mounted on surfaces on which said connecting rod (20) and the leg (30) are in contact with each other, and support the leg in a detachable manner, wherein detachable means are installed by selecting whether said magnets (40) are to be exposed or embedded inside.

Abstract: A Bulk Acoustic Wave Resonator (BAWR), a method of manufacturing of the BAWR, and duplexer including the BAWR are provided. The BAWR may include a first substrate including a via hole formed in a predetermined area of a bottom surface of the first substrate. A first air cavity may be formed above the first substrate, and a first lamination resonating portion may be laminated above the first air cavity in sequence of a lower electrode, a piezoelectric layer, and an upper electrode. A second air cavity may be formed above the first substrate, and a second lamination resonating portion may be laminated above the second air cavity in sequence of the lower electrode, the piezoelectric layer, and the upper electrode. The first lamination resonating portion and the second lamination resonating portion may be connected via either the lower electrode or the upper electrode.

Abstract: A roller blind apparatus for panoramic sunroofs, in which front and rear roller blinds can be opened or closed by respective motors, thereby providing more convenience to a user. The apparatus includes front and rear roller blinds; a first drive means generating drive power for opening or closing the front roller blind; a second drive means generating drive power for opening or closing the rear roller blind such that the rear roller blind can be operated separately from the front roller blind; a power transmission unit that transmits the drive power of the first drive means so as to allow a moving glass to be operated in conjunction with the opening/closing motion of the front roller blind; and a control unit that controls a supply of electric power to the first and second drive means so as to control the motions of the front and rear roller blinds.

Abstract: A two-way interlock sliding system and a roller blind apparatus having the system, which has a power transmission unit causing two drive units to interlock-slide using one motor, thereby realizing a simple construction of the apparatus. The roller blind apparatus includes a front roller blind provided in a sunroof of a vehicle, a rear roller blind interlocked with the front roller blind so as to be opened or closed simultaneously with the front roller blind; a drive means generating drive power; a moving glass operated in conjunction with opening or closing motions of the two roller blinds; a power transmission unit for transmitting the power of the drive means such that the moving glass can be operated in conjunction with the opening or closing motions of the two roller blinds; and a control unit for controlling the drive means so as to control operations of the two roller blinds.