Abstract: An embodiment of the inventive concept includes an optical signal generating circuit, a controlling circuit, a waveform shaping circuit, and an output circuit. The optical signal generating circuit generates a first optical signal including pulses. The controlling circuit generates a control signal indicating a first pulse to be attenuated in magnitude among the pulses. The waveform shaping circuit attenuates a magnitude of the first pulse based on the control signal and the first optical signal, and generates a second optical signal including pulses corresponding to the pulses included in the first optical signal and the first pulse having the attenuated magnitude. The output circuit outputs an electric signal of bands corresponding to differences between frequencies of the pulses included in the second optical signal based on the second optical signal. A band corresponding to the first pulse among the bands of the electric signal is adjusted as the magnitude of the first pulse is attenuated.

Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.

Abstract: A system is provided for selectively applying a coating to portions of an article having at least one area that is not be coated. The system comprises a jig, with a platform for supporting article. The jig also has a bar that is moveable with respect to the platform and at least one masking element that is coupled to the bar and is configured to cover the at least one surface of the article that is not to be coated. The jig also has a first connection mechanism that defines a first mating element. The system also comprises at least one carrier that comprises a base and at least one second connection mechanism that defines a second mating element. The second mating element is mateable with the first mating element such that the jig is releasably coupled to the carrier upon mating the first and second mating elements.

Abstract: A rear cross member for a vehicle includes: an upper plate including an upper body, and upper side parts that are formed to extend from opposite ends of the upper body; a lower plate including a lower body that is coupled with the upper body, and lower side parts that are formed to extend from opposite ends of the lower body and are coupled with the upper side parts; and a front panel connected to the upper and lower plates.

Abstract: Disclosed are methods and systems for a data discovery solution which harnesses the power of crowdsourcing to improve automated data curation. This is done in two complimentary ways: (a) large scale collective curation through anonymized multi-tenancy, and (b) and through internet scale matching and validation gaming platform using mobile application game. The result is the most extensive library of semantic-technical mappings of the enterprise data, which are immediately at hand to provide a fast, easy and a good understanding of the enterprise data. The data discovery solution forms a gateway for governing and unlocking value from big data.

Abstract: An embodiment of the inventive concept includes an optical signal generating circuit, a controlling circuit, a waveform shaping circuit, and an output circuit. The optical signal generating circuit generates a first optical signal including pulses. The controlling circuit generates a control signal indicating a first pulse to be attenuated in magnitude among the pulses. The waveform shaping circuit attenuates a magnitude of the first pulse based on the control signal and the first optical signal, and generates a second optical signal including pulses corresponding to the pulses included in the first optical signal and the first pulse having the attenuated magnitude. The output circuit outputs an electric signal of bands corresponding to differences between frequencies of the pulses included in the second optical signal based on the second optical signal. A band corresponding to the first pulse among the bands of the electric signal is adjusted as the magnitude of the first pulse is attenuated.

Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.

Abstract: A radio frequency signal generation device may include an optical comb generator configured to generate an optical comb signal including a plurality of first wavelength signals having different wavelengths; a pulse shaper configured to attenuate remaining wavelength signals excluding a plurality of second wavelength signals among the plurality of first wavelength signals; an optical-electronic converter configured to generate a radio frequency signal including a carrier frequency signal from the plurality of second wavelength signals outputted from the pulse shaper; and a pulse shaping controller configured to control the pulse shaper such that a carrier frequency of the carrier frequency signal varies according to a frequency hopping pattern.

Abstract: Provided is a dephosphorizing flux configured to adjust a phosphorous component contained in molten steel, the dephosphorizing flux includes a main material including BaCO3 and a supplementary material, wherein the supplementary material includes a first material containing either of NaHCO3 or Na2CO3 and a second material containing CaF2. Thus, in accordance with a dephosphorizing flux and a method for preparing the same of the present disclosure, the plugging of a lower blowing nozzle that blows a carrier gas during dephosphorization may be prevented while improving a dephosphorization ratio. In addition, since environment polluting substances are not used as in conventional arts, environment pollution risk may be reduced, and the cost burden due to the facility for pollution prevention and harmful substance management may be alleviated.

Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.

Abstract: Provided is a method for producing alloy steel, the method comprising producing first alloy steel in a temperature holding furnace; maintaining the first alloy steel at a temperature of no lower than a melting point in the temperature holding furnace; and producing second alloy steel having an alloy content lower than the alloy content in the first alloy steel by melt mixing of the first alloy steel and molten steel. In the producing of the alloy steel, melting and storing of the ferroalloy are continuously performed, and thus, the temperature drop of the ferroalloy may be suppressed or prevented.

Abstract: The present disclosure provides a method of a node device for generating blocks, comprising acquiring one or more transactions not stored in a blockchain, determining whether or not a new hash function is required for the one or more transactions, preparing the new hash function, generating a block data for the one or more transactions, calculating a hash value of the block data by the new hash function, generating a block comprising the hash value and the block data, and transmitting the block such that the block is stored in the blockchain.

Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.

Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.

Abstract: In a method of programming a semiconductor memory device, during a standby period, a standby voltage is applied to word lines coupled to a plurality of memory cells included in a selected memory cell string, and, during a first program period, a first pre-bias voltage is applied to a word line coupled to at least one of programmed memory cells of the selected memory cell string. The first pre-bias voltage is greater than the standby voltage.

Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more particularly, to a polycarbonate-based resin composition exhibiting low deformation characteristic, excellent impact strength, excellent appearance surface characteristic, and excellent flame retardancy, and a molded article formed therefrom.

Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.

Abstract: The present invention relates to a high strength steel sheet having a tensile strength of 700 to 1,300 Mpa and an elongation of 12% or more, and having a tempered martensite single phase structure. The steel sheet of the present invention is manufactured through the steps of: rapidly heating a material steel sheet for 3 to 60 seconds to an Ac3 transformation point or higher and maintaining the material steel sheet, the material steel sheet containing 0.08 to 0.30 wt % of C, 0.01 to 2.0 wt % of Si, 0.30 to 3.0 wt % of Mn, 0.05 wt % or less of P and 0.05 wt % or less of S and the remainder being Fe and other unavoidable impurities; rapidly cooling the heated steel sheet to 100° C./s or higher with water or oil; and rapidly tempering to 500° C. to A1 transformation point for 3 to 60 seconds including heating and maintaining time.

Abstract: Disclosed are a polycarbonate resin composition including 15 to 93% by weight of a polycarbonate-polyorganosiloxane copolymer; 0 to 70% by weight of a bisphenol-derived polycarbonate resin; 5 to 30% by weight of glass fiber surface-treated with epoxysilane; d) 1 to 5% by weight of a core-shell impact modifier; and e) 0.05 to 3% by weight of an epoxysilane additive and a polycarbonate resin composition, and a molded article manufactured therefrom. In accordance with the present disclosure, a polycarbonate resin composition and a molded article manufactured therefrom, and more particularly to a polycarbonate resin composition suitable for satisfying demand for larger area and slimmer electronic products, etc. while providing superior rigidity, chemical resistance, and impact resistance and aesthetic appearance, and a molded article manufactured therefrom are provided.

Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.