Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0?x?1, 0?y?1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.

Abstract: A non-contact interface device for a vehicle and a method for controlling the same, may display an operation system menu for a driver and passengers to operate various kinds of devices of the vehicle as a hologram, enable a user to operate the displayed operation system menu in a non-contact manner by use of the user's finger or the like, and provide the user with a tactile feedback for a non-contact operation, so that the user can recognize whether to have operated the menu.

Abstract: The present invention relates to a substrate aligning device for bonding a first substrate (100) and a second substrate (200), wherein the first substrate (100) and the second substrate (200) have respective bonding surfaces via which the first substrate (100) and the second substrate (200) are bonded face-to-face with each other, and respective non-bonding surfaces which are located on the reverse sides from the bonding surfaces.

Abstract: The present invention relates to a substrate aligning device for bonding a first substrate (100) and a second substrate (200), wherein the first substrate (100) and the second substrate (200) have respective bonding surfaces via which the first substrate (100) and the second substrate (200) are bonded face-to-face with each other, and respective non-bonding surfaces which are located on the reverse sides from the bonding surfaces.

Abstract: The present invention relates to a method of manufacturing an orally disintegrating dosage form which masks a bitter or unpleasant taste. A composition including a ratio of excipients and a coated active substance prevents a coating layer on the active substance from being destroyed during manufacture.

Abstract: An integrated circuit for a physically unclonable function (PUF) includes first and second PUF cells and a combination circuit. The first and second PUF cells respectively output first and second cell signals having unique levels based on a threshold level of a logic gate. The combination circuit includes a first stage that generates a first combination signal based on the first and second cell signals. The first and second PUF cells respectively include first and second logic gates to respectively output the first and second cell signals. The combination circuit includes a third logic gate that receives the first and second cell signals and outputs the first combination signal. The third logic gate has a same structure as each of the first and second logic gates.

Abstract: Provided are a separation system for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation system may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.

Abstract: Provided are a separation system for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation system may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.

Abstract: A physical unclonable function (PUF) circuit and a PUF system including the same are provided. The PUF circuit includes a plurality of PUF cells each configured to generate an output voltage by dividing a power voltage, a reference voltage generator configured to generate a first reference voltage by dividing the power voltage, and a comparing unit configured to sequentially compare the output voltages of the plurality of PUF cells with the first reference voltage to output data values of the plurality of PUF cells.

Abstract: Provided are a separation method for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation method according to the present invention may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.

Abstract: An integrated circuit for a physically unclonable function (PUF) includes first and second PUF cells and a combination circuit. The first and second PUF cells respectively output first and second cell signals having unique levels based on a threshold level of a logic gate. The combination circuit includes a first stage that generates a first combination signal based on the first and second cell signals. The first and second PUF cells respectively include first and second logic gates to respectively output the first and second cell signals. The combination circuit includes a third logic gate that receives the first and second cell signals and outputs the first combination signal. The third logic gate has a same structure as each of the first and second logic gates.

Abstract: A physical unclonable function (PUF) circuit and a PUF system including the same are provided. The PUF circuit includes a plurality of PUF cells each configured to generate an output voltage by dividing a power voltage, a reference voltage generator configured to generate a first reference voltage by dividing the power voltage, and a comparing unit configured to sequentially compare the output voltages of the plurality of PUF cells with the first reference voltage to output data values of the plurality of PUF cells.

Abstract: Provided is a method for recycling energy in process of butadiene preparation, which includes, in the process of preparing butadiene using oxidative dehydrogenation reaction, steps of: a) supplying part or all of a light gas discharged from a solvent absorption tower to a turbine to produce electricity; b) passing the light gas passed through the turbine through one or more device units provided with a heat exchanger; and c) feeding the light gas passed through the device units provided with the heat exchanger into a reactor, according to which more economical butadiene preparation process is provided, by reducing net energy value required in process of butadiene preparation using oxidative dehydrogenation reaction.

Abstract: Provided is a method for recycling energy in process of butadiene preparation, which includes, in the process of preparing butadiene using oxidative dehydrogenation reaction, steps of: a) supplying part or all of a light gas discharged from a solvent absorption tower to a turbine to produce electricity; b) passing the light gas passed through the turbine through one or more device units provided with a heat exchanger; and c) feeding the light gas passed through the device units provided with the heat exchanger into a reactor, according to which more economical butadiene preparation process is provided, by reducing net energy value required in process of butadiene preparation using oxidative dehydrogenation reaction.

Abstract: The present invention relates to a method of recovering an absorption solvent in a butadiene production process through oxidative dehydrogenation, the method including: a) transferring a light gas discharged from an upper portion of an absorption tower to a wash column; and b) recovering the absorption solvent included in the light gas by a solvent circulating in the wash column. Since an absorption solvent may be prevented from being introduced into a reactor, or being discharged to an outside of a system, economic efficiency of a butadiene production process is improved.

Abstract: A system mounted in a vehicle to recognize load capacity change is disclosed. The system includes a lamp, a micro controller unit (MCU) configured to adaptively control the system based on load capacity of the lamp, an intelligent power switch (IPS) having a front end connected to the MCU and a rear end connected to the lamp, and a sensing resistor connected between the MCU and the IPS.

Abstract: The present invention relates to a method for producing butadiene through an oxidative dehydrogenation reaction. The production method according to the present invention may easily regulate an input ratio between oxygen and nitrogen that are used as raw material, such that a loss may be minimized of butadiene that is included in a second fraction stream (purge stream) and discharged to outside of the system. Consequently, an economic competitiveness of the process, such as a reduced raw material cost and an improved productivity may be realized.

Abstract: A system mounted in a vehicle to recognize load capacity change is disclosed. The system includes a lamp, a micro controller unit (MCU) configured to adaptively control the system based on load capacity of the lamp, an intelligent power switch (IPS) having a front end connected to the MCU and a rear end connected to the lamp, and a sensing resistor connected between the MCU and the IPS.

Abstract: Provided are a separation method for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation method according to the present invention may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.

Abstract: The present invention relates to a method for producing butadiene through an oxidative dehydrogenation reaction, the method including steps of a) introducing a first stream which includes C4 fraction, steam, oxygen (O2), and nitrogen (N2) into a reactor which is filled with catalyst to perform oxidative dehydrogenation reaction; b) selectively absorbing butadiene, which is obtained from the reactor, into an absorption solvent, and separating and removing C4 mixture other than the dutadiene and light gas product; and c) recovering and purifying the butadiene. Through integration of the gas separating and purifying steps by using the single absorption solvent during production of butadiene, equipment costs and operating costs accruing from repeated introduction and removal of solvent are reduced, thereby ensuring economic competitiveness of the process.