Abstract: The present subject matter provides a method of preparing a multicomponent metal-hybrid nanocomposite using co-gasification, in which a multicomponent metal-hybrid nanocomposite can be prepared by a one-step process without using a complicated process including the steps of supporting-drying-calcining-annealing and the like at the time of preparing a conventional alloy catalyst, and provides a multicomponent metal-hybrid nanocomposite prepared by the method. The method is advantageous in that a multicomponent metal-hybrid nanocomposite can be synthesized by a simple process of simultaneously gasifying two kinds of metal precursors, and in that an additional post-treatment process is not required.

Abstract: The present invention relates to a sensor-integrated chip for a CCD camera in which a CCD sensor, an H/V driver for driving the CCD sensor, and an ISP (Image Signal Process) chip, which inputs a control signal for driving the CCD sensor to the H/V driver and allows a video to be displayed on a monitor (not shown) in response to an output signal from the CCD sensor, are stacked and connected with each other by inter-pad wire bonding into one IC package to be one chip, by an SIP (system In Package) method.

Abstract: The present subject matter provides a method of manufacturing an electrode for a fuel cell, in which nanocarbons are grown on the surface of a substrate for a fuel cell using a process of simultaneously gasifying a platinum precursor and a carbon precursor, and simultaneously core-shell-structured platinum-carbon composite catalyst particles are highly dispersed between nanocarbons The subject matter also provides an electrode for a fuel cell, manufactured by the method. This method is advantageous in that an electrode for a fuel cell having remarkably improved electrochemical performance and durability can be manufactured by a simple process.

Abstract: A method of preparing a fuel cell electrode catalyst by preparing a platinum-carbon core-shell composite, which has a platinum nanoparticle core and a graphene carbon shell, using a simultaneous evaporation process, a method for preparing a fuel cell electrode comprising the catalyst prepared thereby, and a fuel cell comprising the same. A fuel cell comprising an electrode catalyst consisting of the core-shell composite prepared by simultaneously evaporating the platinum precursor and the organic precursor can have high performance and high durability, because the platinum particles are not agglomerated or detached and corroded even under severe conditions, including high-temperature, long use term, acidic and alkaline conditions.

Abstract: A composite synthesis method and apparatus, a vaporizer for the composite synthesis apparatus, a vaporizer heater and a composite. In the composite synthesis apparatus using simultaneous vaporization, two or more vaporizers are heated by heaters such that samples vaporized by the vaporizers are supplied into a reactor to synthesize a composite. The apparatus and method may prepare multiple-metal or metal-carbon heterogeneous composites, and may be applied to various metal- and carbon-based adsorbents, absorbents, gas/liquid separation membranes and various catalyst processes. Further, the composite may be applied to various industrial fields through change in metal components or carbon structures.

Abstract: A method of preparing a metal-carbon composite of a core-shell structure through simultaneous vaporization, in which a metal particle constitutes a core and carbon constitutes a shell, with the metal-carbon composite prepared in the form of powder and supported on a supporter, and a metal-carbon composite of a core-shell structure prepared by the same. In these methods, the metal-carbon composite of the core-shell structure is prepared through simultaneous vaporization of metal and carbon precursors and does not require separate post-processing. Further, in the metal-carbon composite of the core-shell structure prepared by these methods, a carbon shell covers a portion or the entirety of a surface of a metal core, whereby the metal particles can be prevented from suffering agglomeration, separation or corrosion when subjected to harsh process conditions at high temperatures for long durations under strong acid and alkali conditions, thereby providing high performance and high durability.

Abstract: An attenuator for attenuating an input signal at a predetermined rate and a step attenuation device having the same are provided. The attenuator includes first to sixth impedance components. A terminal of the first impedance component is connected to an input signal. A terminal of the second impedance component is connected to the other terminal of the first impedance component. The other terminal of the second impedance component outputs an attenuated signal. A terminal of the third impedance component is connected to a common terminal of the first and second impedance components. A terminal of the fourth impedance component is connected to a ground voltage. A terminal of the fifth impedance component is connected to the other terminal of the fourth impedance component. The other terminal of the fifth impedance component is connected to the ground voltage. A terminal of the sixth impedance component is connected to a common terminal of the fourth and fifth impedance component.

Abstract: An attenuator for attenuating an input signal at a predetermined rate and a step attenuation device having the same are provided. The attenuator includes first to sixth impedance components. A terminal of the first impedance component is connected to an input signal. A terminal of the second impedance component is connected to the other terminal of the first impedance component. The other terminal of the second impedance component outputs an attenuated signal. A terminal of the third impedance component is connected to a common terminal of the first and second impedance components. A terminal of the fourth impedance component is connected to a ground voltage. A terminal of the fifth impedance component is connected to the other terminal of the fourth impedance component. The other terminal of the fifth impedance component is connected to the ground voltage. A terminal of the sixth impedance component is connected to a common terminal of the fourth and fifth impedance component.