Abstract: Disclosed is an implantable device for drug delivery operated by a magnetic force. The device is provided with a body member and an external magnetic controller which is able to move some of the parts in the body member so that the drug inside the body member can be delivered to a site of interest of the animal body without the extra power source.

Abstract: A storage device is provided which includes a nonvolatile memory device configured to store a plurality of reference data, a memory configured to store a hash manage table used to manage a plurality of reference hash keys of each of the plurality of reference data, a hash key generator configured to generate a plurality of hash keys based on write requested data, and a memory controller configured to compare the plurality of hash keys and reference hash keys of each reference data to determine whether to store the write requested data in the nonvolatile memory device. The memory controller selects one of the plurality of reference data according to a similarity between the plurality of hash keys and the plurality of reference hash keys of each reference data and stores the write requested data and the selected reference data in the nonvolatile memory device to refer to each other.

Abstract: The image reconstruction method includes performing a forward projection of a first image of an object using a line integral-based value and a point spread function (PSF)-based value to acquire a forward projection value, and performing a back projection of raw image data using the forward projection value to acquire a second image of the object.

Abstract: Provided is a method of forming a microsphere having a structural color, which includes providing a composition for generating a structural color including a curable material and magnetic nanoparticles dispersed in the curable material, forming an emulsion by adding the composition for generating a structural color to an immiscible solvent, arranging the magnetic nanoparticles located in the emulsion droplet of the curable material in a one-dimensional chain structure by applying a magnetic field to the emulsion, and fixing the chain structure by curing the emulsion droplet.

Abstract: An acupressure device includes an acupressure section, a driving part and a control part. The acupressure section is disposed in front of the belly and presses the belly. The driving part is connected to the acupressure section and fixed at a backside of a user and moving the acupressure section toward the belly. The control part is controlled by the user and changing an intensity of a pressure from the acupressure section.

Abstract: The present disclosure relates generally to a switch driving circuit and power factor correction circuit having the same, and more particularly, to a technology to provide a negative offset using Zener diodes to prevent malfunctions in driving a switch. The switch driving circuit to operate a switch implemented with a Field Effect Transistor (FET) includes a first Zener diode connected to a control input end of the switch; a capacitor connected in parallel with the first Zener diode; and second and third Zener diodes for providing a negative offset to fix a voltage applied between the gate and source of the switch to a negative value.

Abstract: In the graphene manufacturing method, a graphite oxide is formed from graphite, and then the graphite oxide is treated with a hydrochloric acid. The hydrochloric acid-treated graphite oxide is reduced at temperature of 120° C. or above and 200° C. or below by performing thermal treatment thereto. Since a low-temperature process is used for manufacturing graphene by performing thermal treatment at a relatively low temperature for a short time, this method has great economic feasibility and utilization. Due to a simple composing process and low thermal treatment temperature, graphene may be mass-produced with a low price. In particular, the graphene may be used as a cathode material for a lithium secondary battery, which exhibits a high capacity at a high voltage of 2V or above by reacting with Li, different from an anode material of a lithium secondary battery.

Abstract: Provided is a scheduling method of a multi-user multi-input multi-output (MIMO) communication system. The scheduling method includes transmitting a channel state information request signal to a user equipment when data to be transmitted to the user equipment is received, and calculating, by the user equipment receiving the channel state information request signal, an effective channel gain of the user equipment, determining whether channel state information (CSI) is capable of being transmitted, and transmitting the CSI of the user equipment according to a result of the determining.

Abstract: Provided is a transducer. The transducer includes a permanent magnet that generates a magnetostatic field, a patch disposed below the permanent magnet and formed of a material that deforms according to a magnetic field, an insulator disposed on a top surface of the patch, and a coil wound around the patch and the insulator in a certain form and allowing a magnetomotive field to be induced on the patch according to an applied current. The wound coil has a form in which directions of the magnetostatic field generated by the permanent magnet and the magnetomotive field generated by winding the coil are orthogonal to each other.

Abstract: The present disclosure relates to a parallel linkage-type working apparatus for construction equipment in which a parallel lever and a parallel link operate to prevent a working tool from bending inward so that, even if the working tool is raised, a tilting phenomenon in which the working tool is inclined inward may be prevented, and an amount of change in posture of the working tool at each height may be reduced. Also, the parallel linkage-type working apparatus is capable of increasing excavation ability or power with a posture on the ground surface by supplying a larger amount of hydraulic fluid at one time when working hydraulic pressure is supplied to each cylinder head, in comparison with a case in which working hydraulic pressure is supplied to a cylinder rod.

Abstract: A process for synthesizing adipic acid comprising the steps of using glucaric acid or galactaric acid as a starting material, using rhenium catalyst and acid catalyst, using one or more reaction solvents selected from a group consisting of heptanol and butanol; and b) subjecting glucaric acid ester or galactaric acid ester obtained from the step a) to hydrogenation reaction with precious metal catalyst, and then hydrolyzing the ester obtained from this reaction to obtain adipic acid.

Abstract: A method and apparatus for transmitting channel information used by a station form among TV white space channels, and a method and apparatus for performing channel switching are disclosed.

Abstract: Provided are an optical device and a method for manufacturing same. The optical device according to the present invention including: a transparent amorphous substrate; a current injection layer formed on the substrate; a graphite layer formed on the current injection layer; and a semiconductor unit formed on the graphite layer, wherein the semiconductor unit is formed after forming the graphite layer on the amorphous substrate, thereby overcoming the problems of conventional methods that involve forming a semiconductor unit on an amorphous substrate, and the semiconductor unit of the present invention has superior crystallinity.

Abstract: A method for selecting a Multiple-Input Multiple-Output (MIMO) mode based on energy efficiency and selecting an antenna subset to be used in a communication, in a wireless communication system using a multi-user massive multi-antenna is provided. The method selects an antenna subset capable of minimizing transmission power without using all antennas, based on power consumed by an Radio Frequency (RF) circuit as well as the transmission power. The method further includes selecting a mobile station to which the signal is to be transmitted, selecting a multi-antenna technique based on power consumption of all antennas, selecting an antenna subset to transmit the signal to the mobile station among all the antennas, and transmitting the signal to the mobile station by using the antenna subset.

Abstract: The present disclosure relates to a composition for treating anxiety disorder, particularly to a pharmaceutical composition comprising N-acetyl-L-cysteine or its derivatives for treating anxiety disorder such as post traumatic stress disorder or phobia. In accordance with the present disclosure, N-acetyl-L-cysteine can block the renewal of fear memories for a sustained period of time when it was administered during or after an exposure therapy to treat post traumatic stress disorder or phobia.

Abstract: A wireless charging device may include: a transmitting unit configured to receive a high-frequency AC current and generate magnetic energy; and a first fixing unit disposed on a rear surface of the transmitting unit and configured to generate a designated magnitude or more of attractive force.

Abstract: A battery pack includes: a cell module including a plurality of battery cells; an antenna connected to each of the battery cells; and a waveguide installed at one side of the cell module and having the antenna housed therein.

Abstract: This disclosure relates to porous carbon and a method of preparing the same. The porous carbon of the present invention is derived from a carbonitride compound having a composition comprising metal and nitrogen. The porous carbon of the present invention comprises both micropores and mesopores, and has a large specific surface area, and thus, may be usefully used in various fields.

Abstract: Provided is a neuromorphic device including first and second lower electrodes formed on a substrate to be electrically separated, first and second lower insulating film stacks formed at least on respective surfaces of the first and second lower electrodes, first, second, and third doped regions formed at left and right sides of the first and second lower electrodes, first and second semiconductor regions formed on the first and second lower insulating film stacks, an upper insulating film stack formed on the first and second semiconductor regions and the first, second, and third doped regions, and an upper electrode formed on the upper insulating film stack. Accordingly, a specified neuromorphic device can be reconfigured to have arbitrarily inhibitory or excitatory functionality by using the first and second lower electrodes and the lower insulating film stacks including charge storage layers formed on the surfaces of the electrodes.

Abstract: The present invention relates to a method for calculating a thermal protection factor, wherein the method comprises the steps of: applying heat to a first area coated with a thermal protection material, and a second area not coated with the thermal protection material; measuring the respective saturation temperatures of the first area and second area; calculating a first energy by dividing the energy corresponding to the heat applied to the first area by the saturation temperature of the first area; calculating a second energy by dividing the energy corresponding to the heat applied to the second area by the saturation temperature of the second area; and calculating the thermal protection factor of a thermal protection material by dividing the first energy by the second energy or dividing the difference between the first energy and the second energy by the first energy.