Abstract: A method for in-situ detection of coating defects on a buried pipeline. The pipeline is under cathodic protection or otherwise carries a current applied to its pipe walls. A magnetic field sensor array is placed within the pipeline and moved along its length. As the sensor array travels, it detects the magnetic fields within the pipeline. The sensor output is compared with “expected” data, which represents interior magnetic fields of the pipeline without coating defects. Because electrical current leaks through a coating defect, the current is altered on the pipe wall at the defect. This in turn alters the interior magnetic fields, and a change in the interior magnetic fields indicates a coating defect.

Abstract: Provided is a wireless signal receiver including: an analog-digital converter (ADC) converting an analog RF signal into a digital baseband signal; and a sub-sampling block dividing and processing the digital baseband signal into a first path signal and a second path signal, and extracting a complex baseband signal by using a relative sample delay difference between the first and second path signals, wherein the first path signal is a signal obtained by adjusting a sample delay and sampling rate of the digital baseband signal, and the second path signal is a signal obtained by filtering without adjusting the sampling rate of the digital baseband signal.

Abstract: Particular aspects provide a method of sampling, testing and validating test lots (e.g., single-unit production lots), comprising: assembling a plurality of product portions from each of a plurality of test lots and combining the collected product portions to provide a corresponding set of test lot samples (wherein each test lot sample is attributed to a particular corresponding test lot); enriching the set of test lot samples; removing equal portions of each enriched sample, and combining the removed portions to provide a modular composite sample; and testing of the modular composite sample for the target agent/organism, wherein where such testing is positive, individual test lots may nonetheless yet be validated by further testing of a respective enriched test lot sample and obtaining a negative test result. The methods have broad utility for monitoring all sorts of test lots (e.g., environmental lots, production lots, pharmaceutical lots, etc.

Abstract: Disclosed is an aqueous solution for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, the aqueous solution containing an amino alcohol compound represented by Formula 1 and an amine compound represented by Formula 2, wherein R represents an alkyl group having 1 to 5 carbon atoms; and n represents 1 or 2, wherein X represents —NR1R2; Y represents —NR3R4; R1, R2, R3 and R4 may be the same or different, and each represents an alkyl group having 1 to 3 carbon atoms; and m represents an integer of 3 to 7.

Abstract: Disclosed are a load modulation-based beamspace MIMO transmission method and apparatus. The beamspace MIMO transmission apparatus may include a plurality of impedance loading circuits each including a plurality of imaginary impedance devices, a beamspace MIMO control unit calculating loading values of the plurality of imaginary impedance devices, corresponding to a spatial multiplexing orthogonal frequency division multiplexing (OFDM) sample, and an RF chain unit generating a first signal having a predetermined carrier frequency.

Abstract: A differential on-chip temperature sensor circuit can be implemented in a standard complementary metal-oxide-semiconductor (CMOS) process using PNP transistors. A pair of transistors have collector currents that are sensitive to voltage, both directly and due to saturation currents. A scaling resistor connects to the emitter of one transistor and its voltage compared to the other transistor's emitter voltage by an error amplifier that generates a bias voltage to current sources that are proportional to absolute temperature since the saturation current sensitivity is subtracted out. The current is mirrored to sink current through a multiplier resistor from an output. An amplifier connected across the multiplier resistor compares a reference voltage to set the DC bias independent of temperature sensitivity. The temperature sensitivity is proportional to the ratio of the multiplier resistor and the scaling resistor, and is multiplied by a mirroring factor. A differential output is provided.

Abstract: It is an object of the present invention to provide a monoclonal antibody, which is suitable for the quantitative analysis of asparagine synthetase in a cell. The present invention provides a monoclonal antibody which specifically recognizes asparagine synthetase that is present in a cell.

Abstract: A method for growing a transition metal dichalcogenide on a substrate, the method including providing a growth substrate having a first side and a second side opposite the first side; providing a source substrate having a first side and a second side opposite the first side; depositing a transition metal oxide on at least a portion of the first side of the source substrate; combining the growth substrate with the source substrate such that the first side of the growth substrate contacts the transition metal oxide, the combining producing a substrate stack; exposing the substrate stack to a chalcogenide gas, whereby the transition metal oxide reacts with the chalcogenide gas to produce a layer of a transition metal dichalcogenide on at least a portion of the first side of the growth substrate; and removing the source substrate from the growth substrate having the layer of the transition metal dichalcogenide thereon.

Abstract: A lateral p-n diode in the center of and surrounded by a vertical Silicon-Controlled Rectifier (SCR) forms an Electro-Static-Discharge (ESD) protection structure. The lateral p-n diode has a cross-shaped P+ diode tap with four rectangles of N+ diode regions in each corner of the cross. A P-well under the P+ diode tap is also an anode of a vertical PNPN SCR that has a deep N-well in a P-substrate. The deep N-well surrounds the lateral diode. Triggering MOS transistors are formed just beyond the four ends of the cross shaped P+ diode tap. Each triggering MOS transistor has N+ regions at the edge of the deep N-well and in the P-substrate that act as the cathode terminals. A deep P+ implant region under the N+ region at the edge of the deep N-well decreases a trigger voltage of the vertical SCR.

Abstract: A laser micro/nano processing system (100, 200, 300, 400) comprises: a laser light source used to provide a first laser beam having a first wavelength and a second laser beam having a second wavelength different from the first wavelength, with the pulse width of the first laser beam being in the range from a nanosecond to a femtosecond; an optical focusing assembly used to focus the first laser beam and the second laser beam to the same focal point; and a micro mobile platform (21) controlled by a computer. Also disclosed are a method for micro/nano-processing photosensitive materials with a laser and a method for fabricating a device with a micro/nano structure using laser two-photon direct writing technology. In the system and methods, spatial and temporal overlapping of two laser beams is utilized, so as to obtain a micro/nano structure with a processing resolution higher than that of a single laser beam, using an average power lower than that of a single laser beam.

Abstract: An unmanned aerial vehicle (UAV) detection method and a system therefor are provided. The UAV detection method includes receiving a radio signal from air, detecting a global positioning system (GPS) leakage signal of a predetermined frequency from the received radio signal, and determining that a UAV is detected when the GPS leakage signal is detected.

Abstract: A stable and easily producible compound of the formula (I): wherein R1 represents a hydrocarbon group; and R2 and R3 represent each independently a hydrogen atom or a hydrocarbon group: provided that in at least one of R1, R2 and R3, at least one hydrogen atoms are substituted by a fluorine atom, and each of R1, R2 and R3 is attached via its carbon atom to a carbon atom to which a nitrileoxide group is attached.

Abstract: The present invention relates to a coring system and a determining method that can determine whether accurate coring was achieved. A coring system according to the present invention includes: a coring part with a core to be filled with an object to be cored; a driving unit controlling upward/downward movement of the coring part; a rope connecting the coring part with the driving unit; and a tensiometer measuring tension in the rope.

Abstract: Disclosed is a silicon nano crystal light emitting diode, including: a photoelectric conversion layer formed of a silicon nitride layer including a silicon nano crystal; an electron injection layer formed on the photoelectric conversion layer; and a hole injection layer, which faces the electron injection layer with the photoelectric conversion layer interposed therebetween, has an energy band gap higher than that of the photoelectric conversion layer, and has a refractive index lower than that of a silicon thin film.

Abstract: Provided are an electrode including a nanostructure and a method of preparing the same, and more particularly, an electrode including a substrate, and a plurality of metal nanocups or nanorings spaced apart from one another and disposed on the substrate, and openings thereof are aligned above the substrate, and a method of preparing the electrode. An electrode of the present invention includes catalytic metal having a structure of the plurality of nanocups or nanorings and thus, an area, in which a reactant participating in an oxidation or reduction reaction is able to be in contact with catalytic metal, may become wider in comparison to that of a typical electrode having catalytic metal in the shape of a flat thin film. Accordingly, an efficiency of the oxidation or reduction reaction may be improved due to catalytic metal and eventually, a power generation efficiency of a cell may be improved.

Abstract: A current limiting device for a power grid includes a first current limiting reactor; a first smart fast switch connected with the first current limiting reactor in parallel; a current transformer sleeved on a bus bar located on one side of a circuit resulting from the parallel connection of the first current limiting reactor with the first smart fast switch to monitor the current in the bus bar in real time; and a controller connected with the current transformer to control the switch-off of the first smart fast switch when the current in the bus bar is higher than a first preset value and the switch-on of the first smart fast switch when the current in the bus bar is smaller than a second preset value, wherein the first preset value is higher than the second preset value. The current limiting device improves the operational reliability of a power grid.

Abstract: An electro-optical device can include a plurality of nanocrystals positioned between a first electrode and a second electrode.

Abstract: A disclosure provides a resin composition, a prepreg, and a substrate employing the same. According to an embodiment of the disclosure, the resin composition includes a polyphenylene ether compound, and a bismaleimide. The prepreg includes a cured product of the resin composition. The substrate includes a product fabricated by the resin composition or the prepreg.

Abstract: The present invention provides a composite thermoelectric material. The composite thermoelectric material can include a semiconductor material comprising a rare earth metal. The atomic percent of the rare earth metal in the semiconductor material can be at least about 20%. The composite thermoelectric material can further include a metal forming metallic inclusions distributed throughout the semiconductor material. The present invention also provides a method of forming this composite thermoelectric material.

Abstract: Disclosed herein are a polymer nanocapsule and a preparing method thereof, and more particularly, a 3D covalent molecular network nanocapsule, and a preparing method thereof. According to the present invention, a nanocapsule having thermal stability and solvent resistance due to a 3D covalent molecular network structure may be easily prepared without performing an additional post-processing process such as addition of a cross-linking agent or catalyst or removal of a template or core. Since the nanocapsule formed as described above may support an organic dye, metal particles, and the like, it is expected that the nanocapsule will be variously applied to material storage and transport, drug delivery, and the like.