Abstract: Provided is a zinc-based plated steel sheet having a post-treated coating filmed thereon including: a steel sheet; a zinc plated layer formed on the steel sheet; and a post-treated coating formed on the plated layer, wherein the atomic ratio (O/M) of oxygen (O) to metals (M) contained in the post-treated coating is greater than 2 and less than 20, and a method for post-treating a zinc-based plated steel sheet. According to this, the zinc-based plated steel sheet having the post-treated coating formed thereon has the effects excellent in lubricity, weldability, adhesiveness, film-removing property and paintability. As the method of post-treating a zinc-based plated steel sheet of the present invention employs a simple coating method irrespective of the kind of plating layer, the process is simple and economical and the process operation cost is low.

Abstract: Biological strains, compositions, and methods of using the strains and compositions for reducing overall insect damage.

Abstract: Provided is a composition for surface treatment of an Mg-containing galvanized steel sheet comprising a trivalent chromium compound, a carboxylated vinylidene copolymer, and a cross-linking agent. The composition for surface treatment forms a chromium (III) film and is also cross-linked in coating and drying of the surface of a galvanized steel sheet, thereby forming a three-dimensional compact molecular structure. Thus, a galvanized steel sheet coated with the composition has a coating film with high ductility, and can reduce moisture and/or oxygen permeability such that, not only does a worked section have excellent corrosion resistance, but also the occurrence of darkening and/or black dots can be prevented even when exposed to high-temperature and high-humidity environment for a long period of time.

Abstract: A memory device includes a plurality of data input pads and at least one test data input pad. The memory device also includes a plurality of data input circuits corresponding to a plurality of channels, respectively, the plurality of data input circuits suitable for transmitting respective data received through the data input pads to the corresponding channels. The memory device further includes a test control circuit suitable for selecting at least one data input circuit among the plurality of data input circuits based on test mode information and suitable for controlling the selected data input circuit to transmit set data to the corresponding channel, during a test operation.

Abstract: The present invention relates to a cosmetic composition for wrinkle reduction comprising, as an active ingredient, a Gynostemma pentaphyllum gypenoside fraction and, more specifically, to a cosmetic composition for wrinkle reduction, wherein the Gynostemma pentaphyllum gypenoside fraction includes at least one gypenoside selected from the group consisting of gypenoside UL1, gypenoside UL2, gypenoside UL3, gypenoside UL4, gypenoside UL5, gypenoside UL6, and gypenoside UL7.

Abstract: The present invention relates to a point-of-impact analysis apparatus for improving the accuracy of a ballistic trajectory and a point of impact by applying a shooting environment of a real personal firearm to virtual reality, and a virtual shooting training simulation system using same, the point-of-impact analysis apparatus including: a gun analysis module for generating gun information on a gun structure of a virtual gun which is a model possessed by a user in a real space; a bullet analysis module for generating bullet information on a structure of a bullet applied to the virtual gun; an environment analysis module for detecting an environmental state of a shooting training content output on a screen so as to generate environmental information on the environmental state; and a point-of-impact generation module for generating point-of-impact information related to a position, at which the bullet impacts a target displayed on the screen, by making reference to at least one piece of information among the gun

Abstract: A self-powered delineator includes a wind-powered rotatable module; a first piezoelectric energy generator module for generating electrical energy; a second piezoelectric energy generator module for generating electrical energy; and a light-emitter. The wind-powered rotatable module includes one or more first magnets spacedly arranged around a rotation shaft. The first piezoelectric energy generator module includes one or more first piezoelectric elements, and one or more second magnets disposed on the at least one first piezoelectric element. The second piezoelectric energy generator module includes at least one elastic base extending radially from a fixed shaft in a cantilever manner; and at least one second piezoelectric element on the at least one elastic base.

Abstract: An energy harvesting apparatus including light collecting particles is provided. The energy harvesting apparatus includes a light collecting layer for collecting light incident thereon from the outside, a first charging member on a first surface of the light collecting layer, a second charging member on a surface of the light collecting layer opposite the first surface, and solar cells on opposite light exit surfaces between the first and second surfaces of the light collecting layer.

Abstract: Provided is a zinc-based plated steel sheet having a post-treated coating filmed thereon including: a steel sheet; a zinc plated layer formed on the steel sheet; and a post-treated coating formed on the plated layer, wherein the atomic ratio (O/M) of oxygen (O) to metals (M) contained in the post-treated coating is greater than 2 and less than 20, and a method for post-treating a zinc-based plated steel sheet. According to this, the zinc-based plated steel sheet having the post-treated coating formed thereon has the effects excellent in lubricity, weldability, adhesiveness, film-removing property and paintability. As the method of post-treating a zinc-based plated steel sheet of the present invention employs a simple coating method irrespective of the kind of plating layer, the process is simple and economical and the process operation cost is low.

Abstract: An energy harvest is disclosed. The disclosed energy harvest includes: a first charging member including a plurality of first protruding parts; and a second charging member including a plurality of second protruding parts arranged between the first protruding parts and including a material different from that of the first protruding parts. When at least one of the first and second charging members moves, side surfaces of the first protruding parts and side surfaces of the second protruding parts come into contact with each other, or gaps between the side surfaces of the first protruding parts and the side surfaces of the second protruding parts are changed. The energy harvest generates electrical energy from the contact or the gap change.

Abstract: Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.

Abstract: A hybrid generator using a thermoelectric generation and a piezoelectric generation are provided. The hybrid generator includes first and second insulating layers spaced apart from each other; a thermoelectric structure disposed between the first and second insulating layers; a first electrode disposed on the second insulating layer; a piezoelectric structure disposed on the first electrode; a third insulating layer disposed on the piezoelectric structure; and a second electrode disposed on the third insulating layer.

Abstract: An energy harvesting apparatus including light collecting particles is provided. The energy harvesting apparatus includes a light collecting layer for collecting light incident thereon from the outside, a first charging member on a first surface of the light collecting layer, a second charging member on a surface of the light collecting layer opposite the first surface, and solar cells on opposite light exit surfaces between the first and second surfaces of the light collecting layer.

Abstract: The present disclosure enables materials of a triboelectric charging member to exhibit a characteristic of increased surface charge density, thereby improving output of a triboelectric generating device. Accordingly, the present disclosure provides a triboelectric generating device showing improved output without increasing a size of the triboelectric generating device or without increasing amounts of materials required for the triboelectric generating device.

Abstract: According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.

Abstract: Provided is a wireless power reception device including: a gate driver for generating a gate signal for switching between a turn-on voltage and a turn-off voltage; a rectifier connected to both ends of an inductor and including FETs whose on/off states are controlled by the gate signal; a rectifier output detection unit for sensing an output value of the rectifier; and an impedance control unit for controlling an impedance of the rectifier by controlling at least one of a duty ratio of the gate signal and a turn-on voltage for turning on the FET based on the output value.

Abstract: A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.

Abstract: The present invention relates to a cosmetic composition for wrinkle reduction comprising, as an active ingredient, a Gynostemma pentaphyllum gypenoside fraction and, more specifically, to a cosmetic composition for wrinkle reduction, wherein the Gynostemma pentaphyllum gypenoside fraction includes at least one gypenoside selected from the group consisting of gypenoside UL1, gypenoside UL2, gypenoside UL3, gypenoside UL4, gypenoside UL5, gypenoside UL6, and gypenoside UL7.

Abstract: The present invention provides a stable peptide-conjugated, ascorbic acid derivative, a method for preparing the same, and a cosmetic composition comprising the same as an active ingredient. The stable peptide-conjugated ascorbic acid derivative of the present invention has both the effect of whitening the skin by inhibiting melanin production and the effect of reducing skin wrinkles by activating collagen production, and may be used in a cosmetic composition.

Abstract: Provided is a zinc-based plated steel sheet having a post-treated coating filmed thereon including: a steel sheet; a zinc plated layer formed on the steel sheet; and a post-treated coating formed on the plated layer, wherein the atomic ratio (O/M) of oxygen (O) to metals (M) contained in the post-treated coating is greater than 2 and less than 20, and a method for post-treating a zinc-based plated steel sheet. According to this, the zinc-based plated steel sheet having the post-treated coating formed thereon has the effects excellent in lubricity, weldability, adhesiveness, film-removing property and paintability. As the method of post-treating a zinc-based plated steel sheet of the present invention employs a simple coating method irrespective of the kind of plating layer, the process is simple and economical and the process operation cost is low.