Abstract: According to a single-stage interleaved software switching converter, power factor is controlled and battery charging and current are integrally controlled on the basis of a PFC circuit of a single-stage interleaving type so that efficiency of a charging device is enhanced and the cost is reduced. Further, it is possible to remove harmful electromagnetic radiation; enhance power density and durability by using a film-type capacitor instead of the conventional electrolytic capacitor; reduce switching loss by soft switching operation and to reduce the volume of a filter unit; design magnetizing current to be small by removing a low-frequency component of a transformer and to reduce the volume; and perform high-power charging according to the number of windings of the transformer.

Abstract: The present invention relates to ear-of-rice-shaped copper particles. The technical gist thereof is a method of manufacturing ear-of-rice-shaped copper particles, ear-of-rice-shaped copper particles manufactured thereby, and a conductive paste using the same. The method includes a first step of preparing a copper precursor solution, a second step of adjusting the pH of the copper precursor solution, a third step of adding a zinc powder to the pH-adjusted copper precursor solution, a fourth step of synthesizing the ear-of-rice-shaped copper particles by stirring the copper precursor solution, to which the zinc powder is added, for a predetermined time, and a fifth step of separating, washing, and then drying the synthesized ear-of-rice-shaped copper particles.

Abstract: Disclosed is a method and apparatus for IP-based hybrid 3DTV content transmission and reception. According to one aspect of the present disclosure, an IP-based hybrid 3DTV content reception apparatus includes: a receiving unit receiving multiplexed 3DTV content information; an additional data obtaining unit obtaining service layer signaling information from the received 3DTV content information, and obtaining additional data based on the obtained service layer signaling information; a decoding unit decoding the received 3DTV content information by using the obtained additional data; and a playing back unit playing back the decoded 3DTV content.

Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.

Abstract: Disclosed is an in vitro exposure system that may radiate a uniform field having a constant wavefront to an experimental cell container and expose each cell container to a same electromagnetic field.

Abstract: A visible light communication (VLC) method in which a transmission device having a display transmits a signal to a reception device having a camera according to the present invention includes outputting, by the transmission device, a visible light signal including data for transmission (referred to as “transmission data” below) through the display using at least one of a color and a pattern, and receiving, by the reception device, the visible light signal through the camera and extracting the transmission data.

Abstract: The present disclosure relates to a current memory circuit for minimizing clock feedthrough, the circuit including: a first memory capacitor implemented as a first conductive type MOS; a second memory capacitor implemented as a second conductive type MOS; and a dummy capacitor for connecting the first memory capacitor and the second memory capacitor to each other, wherein the first memory capacitor and the second memory capacitor are current mirrors. Accordingly, a current memory circuit with a more accurate performance, low power consumption, and an integration capability can be provided.

Abstract: Disclosed is a method and apparatus for IP-based hybrid 3DTV content transmission and reception. According to one aspect of the present disclosure, an IP-based hybrid 3DTV content reception apparatus includes: a receiving unit receiving multiplexed 3DTV content information; an additional data obtaining unit obtaining service layer signaling information from the received 3DTV content information, and obtaining additional data based on the obtained service layer signaling information; a decoding unit decoding the received 3DTV content information by using the obtained additional data; and a playing back unit playing back the decoded 3DTV content.

Abstract: The present disclosure relates to a current memory circuit for minimizing clock feedthrough, the circuit including: a first memory capacitor implemented as a first conductive type MOS; a second memory capacitor implemented as a second conductive type MOS; and a dummy capacitor for connecting the first memory capacitor and the second memory capacitor to each other, wherein the first memory capacitor and the second memory capacitor are current mirrors. Accordingly, a current memory circuit with a more accurate performance, low power consumption, and an integration capability can be provided.

Abstract: A visible light communication (VLC) method in which a transmission device having a display transmits a signal to a reception device having a camera according to the present invention includes outputting, by the transmission device, a visible light signal including data for transmission (referred to as “transmission data” below) through the display using at least one of a color and a pattern, and receiving, by the reception device, the visible light signal through the camera and extracting the transmission data.

Abstract: A versatile eco-friendly planting block includes: a block body in a form of a hexahedron; cut-off grooves formed at vertex parts of each surface of the block body in symmetrical to each other about a diagonal line of each surface of the block body; and a planting groove selectively formed in the cut-off groove so that vegetation is planted.

Abstract: An apparatus and a method for displaying a panoramic image using a look-up table (LUT) are disclosed, including generating an LUT may include determining first geometric correction information to transform an input domain pixel coordinate system of an input image to a panorama domain pixel coordinate system of a panoramic image, determining second geometric correction information to transform an output domain pixel coordinate system of an output image of the panoramic image to the panorama domain pixel coordinate system of the panoramic image, determining third geometric correction information to transform the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image based on the first geometric correction information and second geometric correction information, and generating an LUT that maps the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image.

Abstract: The invention refers to measuring equipment and is a mechanical stress sensor. The sensor has a rectangular plate of a polymer material the top surface of said rectangular plate having a cavity where a detector is located. Inside the rectangular plate there is a preliminary tensile amorphous ferromagnetic microwire located inside a measuring coil. The microwire is connected to a first pair of contact pads, while the differential measuring coil is connected to a second pair of contact pads. Both pairs of contact pads are connected to the detector. The detector has an output which is connected to an analog to digital converter coupled with a personal computer.

Abstract: The present invention relates to a mesoporous silica/ceria-silica composite and a method for preparing a mesoporous composite and, more specifically, to a mesoporous silica/ceria-silica composite which is composed of mesoporous silica having a hexagonal or cubic structure and ceria having a hexagonal structure provided on a surface and pores of the mesoporous silica, the oxidation state of the ceria being Ce4+ and Ce3+.

Abstract: This invention relates to powder metallurgy, more specifically, to methods of fabricating hard alloy items. The invention can be used as an iron, cobalt or nickel base binder for the fabrication of diamond cutting tools for the construction industry and stone cutting, including segmented cutting discs of different designs and wires for reinforced concrete and asphalt cutting used in the renovation of highway pavements, runways in airports, upgrading of metallurgical plants, nuclear power plants, bridges and other structures, monolithic reinforced concrete cutting drills, as well as discs and wires for the quarry production of natural stone and large scale manufacturing of facing construction materials. This invention achieves the objective of providing binders for the fabrication of diamond tools having higher wear resistance without a significant increase in the sintering temperature, as well as higher hardness, strength and impact toughness.

Abstract: A multiple beam path laser optical system using a multiple beam reflector. The multiple beam path laser optical system includes a light source part to generate a laser beam to be irradiated to a specimen, the multiple beam reflector to split a laser beam incident thereto from the light source part and to provide a plurality of optical paths, a main beam splitter to irradiate the laser beam split by the multiple beam reflector to the specimen, a transducer to excite the specimen for signal detection of the laser beam irradiated to the specimen, and a control part to analyze an interference pattern of a laser beam reflected from the specimen and recombined in the main beam splitter.

Abstract: In order to improve reliability of a system-on-chip (SoC) through fault tolerance verification, there is provided a method of analyzing an error rate in a system-on-chip (SoC) having at least one internal block obtained by interconnecting two or more gates, comprising: applying an input signal to an input terminal of a certain internal block; defining an input error rate of each gate of the internal block; and defining an output error rate of the internal block based on the input error rate of each gate and an error rate propagating to an output terminal. As a result, there is proposed a method of analyzing a change of the output error rate depending on the input error rate in a gate level in error model development necessary to design and verify a fault-tolerant SoC. Therefore, it is possible to analyze errors in each gate and formularize error rate information modeling including an input/output relationship between each gate of a digital circuit in a library form.

Abstract: A substrate for depositing diamond by CVD, comprising a base body of hard material and a coating layer that holds diamond particles as seed crystal in a matrix and is deposited joined thereto on a surface of said base body, wherein: the seed diamond particles have an average particle size of 1 ?m or smaller; the matrix comprises a first metal selected from a first group of Si, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W and/or a first compound between said first metal and a non-metallic substance selected from boron, carbon and nitrogen, said matrix holding the diamond particles distributed therein; and a joint zone developed as a result of a diffusion process and extending over said base body and coating layer comprises either or both atoms of said first metal and a component metal of the hard material.

Abstract: Field of the Invention. This invention relates to technical diagnostics and nondestructive control of materials and can be used for the construction and operation of measuring devices, more specifically, mechanical stress sensors. Disclosure of the Invention. The technical result achieved by the invention is an increase the sensor functionality by making it capable of measuring signals caused by local mechanical loads and detecting various types of mechanical loads, e.g. tension, compression and torsion, as well as reducing the effect of noise and increasing the sensitivity. Said technical result is achieved as follows. The mechanical stress sensor disclosed herein comprises a rectangular plate of a polymer material. The top surface of the rectangular plate has a seat in the form of a centrally symmetric cavity where the detector is located.

Abstract: Provided is a geometric correction apparatus and method based on a recursive Bezier patch sub-division. A geometric correction method may include: receiving, from a camera, a first image that is obtained by photographing a black screen that is projected by a projector onto a projection surface; receiving, from the camera, a second image that is obtained by photographing a predetermined pattern that is projected by the projector onto the projection screen; generating a third image by subtracting the first image from the second image; and performing geometric correction with respect to the predetermined pattern to correct a distortion between the predetermined pattern and the third image.