Abstract: A skin care device using multiple composite laser pulses according to an embodiment of the present disclosure includes: a laser generating unit including an energy portion configured to supply energy, a light emission portion configured to generate light by absorbing the energy supplied from the energy portion, a first mirror and a second mirror configured to form a resonance path in which the light generated from the light emission portion is amplified, a polarizing portion disposed on an optical resonant path between the first mirror and the second mirror and configured to polarize the light, and a first switch and a second switch configured to convert a polarization component of an incident polarized light; and a control unit configured to control the first switch and the second switch so that the laser generating unit operates in a single laser pulse mode or a multiple laser pulse mode.

Abstract: Incidents involving confidentiality and vigilance against user privacy invasions raise doubts as to current third-party data collection procedures. Personally identifiable information (PII) is being abused for medical data breaches, identity theft, spam, phishing, cyber spying, etc. A great amount of data is flowing from users to companies for prediction and analysis of data-centric markets. It is thus difficult to track PII flow and genuineness. Blockchain technology, which is an “immutable” distributed ledger, can efficiently track PII exchange, storing, and distribution. In contrast, the EU general data protection regulation (GDPR) in progress claims “a right to forget” and a right “to delete”. However, the present specification proposes an off-chain blockchain architecture using both a local database and a distributed ledger to guarantee a trustable PII life cycle.

Abstract: The present invention provides a pharmaceutical composition for prevention or treatment of a stress disease and depression, the pharmaceutical composition be safely useable without toxicity and side effects by using an extract of leaves of Vaccinium bracteatum Thunb., which is natural resource of Korea, so that the reduction of manufacturing and production costs and the import substitution and export effects can be expected through the replacement of a raw material for preparation with a plant inhabiting in nature.

Abstract: The present invention relates to a method for designing a cycloidal gear tooth profile of a gear shift actuator, the method designing a profile to have a backlash through a change in the radius of a rolling circle of an internal or external tooth profile of a cycloidal gear, and thus enables the smooth engagement of internal teeth and external teeth, reduces the engagement range of the internal teeth and the external teeth to have excellent durability and enable power loss to be reduced, and enables the shape machining of the gear by using general cycloidal gear machining, thereby facilitating manufacturing and being capable of improving machining precision.

Abstract: A radiotherapy system capable of compensating for displacement according to the breathing of a patient, and a method for controlling the same are disclosed. The method includes the steps of: a) irradiating an affected part of the patient who lies on a moving phantom which compensates for displacement of the irradiated part according to breathing of the patient; b) measuring a distance from the irradiated part of the patient to each of ultrasonic sensors using ultrasound; c) extracting displacement of the irradiated part of the patient on the basis of the measured distance; d) generating displacement-compensation information for compensating for the extracted displacement of the irradiated part; and e) moving the moving phantom on the basis of the displacement-compensation information, and compensating for the displacement of the irradiated part. The radiotherapy system acquires the displacement according to the breathing of a patient using an ultrasonic sensor, and adjusts the location of a moving phantom (i.

Abstract: An LED fixing device of a pixel module for a sign board is provided. The LED fixing device is installed on a front side of an LED panel of a road sign board, facilitates the downward flow of rainwater, and prevents the rainwater from being introduced into a pixel module. A method for manufacturing the LED fixing device is also provided. The method for manufacturing the LED fixing plate comprises the steps of extruding the fixing plate and the intercepting plate through a cavity of a mold integrally and continuously, cutting the integrally and continuously extruded fixing plate and intercepting plate at intervals of a predetermined distance, and punching the LED through-holes for fixing the LEDs in the fixing plate.

Abstract: A water-borne resin composition for polyolefin is obtained by graft polymerizing polypropylene chloride resin having a chlorine degree of about 10-40% and an acryl monomer. First, polypropylene chloride resin solution is prepared by mixing about 5-30 parts by weight of polypropylene chloride resin having a chlorine degree of about 10-40 and about 5-30 parts by weight of a hydrophilic solvent. Then, an acryl monomer solution is prepared by mixing about 70-95 parts by weight of an acryl monomer, a solvent and an initiator. The acryl monomer solution is dropped into the polypropylene resin solution at a temperature of about 80-130° C. and thus obtained product is neutralized and diluted. The composition has a good adhesiveness onto polyolefin, so that the composition may be applied as a water-borne paint composition for polyolefin-based substrate.

Abstract: Disclosed is electronic display board supporting structure installed on perimeter road. The electronic display board supporting structure including: a main post having a base plate installed at a lower end part thereof to be uprightly coupled to a base concrete member; a main frame formed of a rectangular pipe material such that an electronic display board case frame for constructing an electronic display board and a side pole for supporting an electronic display board case have a combined structure to reduce a total area and weight when an electronic display board is installed; and a connection member horizontally extended from the main frame to couple the main frame with the main post.

Abstract: The present invention is to provide an apparatus for detecting errors due to cutoff of a unit pixel and short between the unit pixel and the ground voltage level in a lighting-off state, and also a method for checking in a real time whether information data outputted from a remote host computer is normally represented on a display and detecting all the errors due to cutoff of a unit pixel, short between a unit pixel and the ground voltage level, and short between unit pixels.