Abstract: The present invention relates to a composition for preventing, improving, or treating diseases related to advanced glycation end products, comprising an indole derivative or a pharmaceutically acceptable salt thereof. Specifically, the composition of the present invention possesses the effect of trapping methylglyoxal (MGO), which is a main precursor of advanced glycation end products, and thus can be effectively used for preventing, improving, or treating diseases related to advanced glycation end products.

Abstract: The present invention relates to a novel indole derivative and a use thereof. The novel indole derivative according to the present invention traps methylglyoxal (MGO), which is a main precursor of advanced glycation end products, and thus can be effectively used for preventing, improving, or treating diseases related to advanced glycation end products.

Abstract: A method for fabricating a semiconductor device includes forming a stack body over a substrate; forming a sacrificial vertical structure including a double spacer in a first region of the stack body; forming a separation slit including a single spacer in a second region of the stack body to be spaced apart from the sacrificial vertical structure; forming a vertical opening in the first region of the stack body by removing the sacrificial vertical structure; and forming a vertical conductive line filling the vertical opening.

Abstract: A semiconductor device includes: a first word line stack in which first word lines are vertically stacked; a second word line stack in which second word lines are vertically stacked; a word line isolation slit disposed between the first word line stack and the second word line stack; and a first vertical isolation layer disposed between the first word line stack and the second word line stack and overlapping with the word line isolation slit.

Abstract: A method for propagating network management data for energy-efficient internet of things network management and an energy-efficient internet of things node apparatus are disclosed herein. The method includes dividing a plurality of sub-nodes into at least two terminal sub-nodes and the remaining intermediate sub-nodes, and determining a transmission path so that the terminal sub-nodes and the intermediate sub-nodes satisfy an acyclic graph condition, dividing the plurality of pieces of data of network management information into at least two data groups, and transmitting one of the at least two data groups to one of the terminal sub-nodes respectively, transmitting the data of the received data group to adjacent intermediate sub-nodes, performing network coding on selected two pieces of data, transmitting the network-coded data to the at least two intermediate adjacent sub-nodes, and decoding the received network-coded data using previously held data.

Abstract: A method for propagating network management data for energy-efficient internet of things network management and an energy-efficient internet of things node apparatus are disclosed herein. The method includes dividing a plurality of sub-nodes into at least two terminal sub-nodes and the remaining intermediate sub-nodes, and determining a transmission path so that the terminal sub-nodes and the intermediate sub-nodes satisfy an acyclic graph condition, dividing the plurality of pieces of data of network management information into at least two data groups, and transmitting one of the at least two data groups to one of the terminal sub-nodes respectively, transmitting the data of the received data group to adjacent intermediate sub-nodes, performing network coding on selected two pieces of data, transmitting the network-coded data to the at least two intermediate adjacent sub-nodes, and decoding the received network-coded data using previously held data.

Abstract: A fuel cell system for supplying power to a load includes: a plurality of fuel cell stacks; a plurality of DC/DC converters coupled to the plurality of fuel cell stacks; and a stack controller for estimating performance of the respective fuel cell stacks according to current amounts of the plurality of fuel cell stacks, and for controlling power converting efficiency of the respective DC/DC converters according to the performance of the fuel cell stacks to control output power generated by the fuel cell stacks.

Abstract: There is provided an organic thin film transistor and a method of manufacturing the same. The organic thin film transistor includes: an insulating substrate on which a plurality of barrier ribs and a plurality of grooves partitioned by the barrier ribs are formed; source and drain electrodes each formed on the grooves spaced apart from each other among the plurality of grooves; a gate electrode formed on the groove between the source and drain electrodes; an opening formed by etching the barrier ribs between the source electrode and the gate electrode and between the gate electrode and the drain electrode; a gate insulating film formed on the opening; and an organic semiconductor layer formed on the gate insulating film. The organic thin film transistor is capable of mass production and has excellent electrical characteristics.

Abstract: Provided is a current-source push-pull DC-DC converter using an active clamp circuit for reusing energy of leakage inductances by not only diodes on a secondary side of a transformer being zero-current switched using a series-resonant full-wave rectifier, but also the active clamp circuit on a primary side of the transformer, which provides a discharge path of the energy stored in the leakage inductances, increases power conversion efficiency even for a wide input voltage range and reduces a switch voltage stress as compared to a conventional current-source push-pull circuit by operating even for a duty ratio below 0.5 by flowing a current of an input inductor through capacitors of the active clamp circuit when both main switches are off.

Abstract: Provided is a full-bridge active clamp DC-DC converter for reducing power loss due to high-speed switching by primary switches that are zero-voltage switched by energy stored as a leakage inductance of a transformer when main switches are on or off using a full-bridge active clamp circuit, which can be used at capacity, e.g., more than 1 KW. The full-bridge active clamp DC-DC converter includes a primary circuit and a secondary circuit divided by a transformer, the primary circuit, which is a full-bridge active clamp circuit, comprising an input capacitor Cd, two main switches S1 and S2, two sub-switches S3 and S4, and a clamp capacitor Cc, and the secondary circuit, which is an output rectification circuit for rectifying an output voltage.

Abstract: Provided is a current-source push-pull DC-DC converter using an active clamp circuit for reusing energy of leakage inductances by not only diodes on a secondary side of a transformer being zero-current switched using a series-resonant full-wave rectifier, but also the active clamp circuit on a primary side of the transformer, which provides a discharge path of the energy stored in the leakage inductances, increases power conversion efficiency even for a wide input voltage range and reduces a switch voltage stress as compared to a conventional current-source push-pull circuit by operating even for a duty ratio below 0.5 by flowing a current of an input inductor through capacitors of the active clamp circuit when both main switches are off.