Abstract:
Various embodiments of a method for monitoring a machine condition are provided. An embodiment of the present invention provides a method of monitoring a machine condition, comprising the following steps: modeling a normal signal model performed by detecting a signal for monitoring condition of a normal machine and converting the detected signal to a normal signal model in time domain using a hidden Markov model (HMM) algorithm; calculating a probability value data of the monitoring signal at a subject machine performed by detecting a signal for monitoring condition of the subject machine in real-time and converting the detected signal to the probability value data relative to the normal state signal model using the HMM algorithm; and determining a section having deficiency where the probability value data of the monitoring signal at the subject machinery is not maintained constantly relative to the normal signal model.
Abstract:
An inspection system and method for paint coated film of steel bridge using image processing technique including a paint coated film image storing process that stores in a data base (DB) unit a paint coated film image information of a steel bridge photographed by the inspection system; a paint coated film information loading process that loads information stored in the DB unit through calling a file containing the paint coated film image information to be inspected; a scale and rust extracting process that displays a scale part and a rust part on an output unit after detecting the rust part and the scale part by use of the inspection system and storing a calculated percentage of deteriorated are in the DB unit; and a repainting information calculating process that calculates a time for repainting and provide an optimum method for paint coating by deteriorated image information of paint coated film.
Abstract:
Size-controlled immobilization of metal nano-clusters onto particles or nanoparticles is achieved using a polyol process. Polyol processing makes it possible to use thiol groups as a chemical protocol to functionalize the surface of particles, such as silica and polystyrene nanoparticles. Metal nano-clusters, such as silver, gold, platinum and palladium, nucleate and grow on the surface of the particles. The metal nano-clusters may be synthesized in a one-pot process from metal salts, nitrates, nitrites, sulfates, sulfites and the like. Any source of metal ions compatible with the polyol suspension and selected particles may be used. The size of immobilized metal nano-clusters may be controlled by additions of a poly(vinylpyrrolidone) or other polymer capable of regulating the metal ion reduction and nucleation process and by controlling concentration of metal ions, the nucleation and/or growth temperatures, and processing time.
Abstract:
A gate driver includes a gate integrated circuit (“IC”) chip which receives at least two scanning start signals and at least four clock control signals, and outputs a plurality of gate-on voltages, where at least two clock control signals of the at least four clock control signals are generated based on one scanning start signal of the at least two scanning start signals, timings of the at least two scanning start signals are independent of each other, and timings of the at least two clock control signals based on the one scanning start signal are independent of each other.
Abstract:
A liquid crystal display includes a plurality of pixels, a plurality of data lines connected to the plurality of pixels, and a data driver connected to the plurality of data lines, where the data driver supplies data voltage to the plurality of data lines, where the data driver includes a data latch which outputs input image data in response to image data corresponding to the plurality of pixels, wherein the data latch rearranges a sequence of the image data, and a digital-to-analog converting unit which includes a positive digital-to-analog converter which generates a positive data voltage in response to the input image data, and a negative digital-to-analog converter which generates a negative data voltage in response to the input image data.
Abstract:
The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product. As compared to a conventional commercialized process, since the method for producing a lactide in accordance with the present disclosure is a novel process capable of directly producing the lactide from the ester of lactic acid, energy consumption is low and the lactide can be produced through a simple process showing a high yield while maintaining optical property (D-form or L-form optical isomer).
Abstract:
A method of forming a nonvolatile memory device includes providing conductive pillars disposed in a first insulating layer and disposed on a semiconductor substrate, providing an etch stop layer on the first insulating layer, disposing a mold layer on the etch stop layer, and forming grooves in the mold layer. The grooves respectively extend over the conductive pillars in a first direction. The method further includes patterning the etch stop layer using the grooves to form holes respectively corresponding to the conductive pillars, and filling a metal into the grooves and the holes. The metal in the holes contacts the conductive pillars.
Abstract:
A semiconductor device includes first, second, and third conductive lines, each with a respective line portion formed over a substrate and extending in a first direction and with a respective branch portion extending from an end of the respective line portion in a direction different from the first direction. The branch portion of a middle conductive line is disposed between and shorter than the respective branch portions of the outer conductive lines such that contact pads may be formed integral with such branch portions of the conductive lines.
Abstract:
The bread making method includes cold sponge, dough, and second fermentation processes. For cold sponge, 18 to 19.5 parts strong flour, 0.18 to 0.21 parts dried yeast, 0.03 to 0.036 parts yeast food, 0.06 to 0.09 parts salt, 0.06 to 0.09 parts improver, and 10.2 to 11.4 parts water are mixed at a temperature, low speed stirred, high speed stirred, and fermented. In the dough process, the resulting mixture of the cold sponge process is mixed with 12 to 13.5 parts strong flour, 2.1 to 2.7 parts sugar, 0.45 to 0.54 parts salt, 0.9 to 20 1.5 parts dried milk, 0.09 to 0.15 parts dried yeast, 2.1 to 3 parts margarine, and 8.1 to 9.3 parts water, and the resulting mixture is given floor and bench time and divided into pieces. In the second fermentation process, the pieces are molded and fermented.
Abstract:
A system and method for providing an efficient video-on-demand (VoD) service using unicast/multicast in an Internet Protocol (IP) network are provided. A VoD service system includes a multicast efficiency factor (MEF) checking unit to check an MEF in content in response to a request for the content from a client, and a content transmission unit to multicast or unicast the content over a network depending on the checked MEF. Here, the MEF includes an indicator of efficiency for multicast transmission relative to unicast transmission of the content.