Abstract: Disclosed herein is a preparation method of homopolymer nanoparticles without using a surfactant. The homopolymer nanoparticles prepared thereby are expected to be widely used not only as a template of a semiconductor metal oxide, a drug delivery system (DDS), an electron transport layer (ETL), and a seed having vertical structural shape, but also in a high precision field such as replacement of an organic device polystyrene bead film.

Abstract: The ballast water and fish farm treatment system for circulating effluent water of a fish farm or a ship by filtering and resupplying the effluent water, the system including a heat exchange system to heat or cool the effluent water, a physical filtration unit to filter out impurities from the effluent water are discharged from the heat exchange system, and a chemical filtration unit to mix the effluent water discharged from the physical filtration unit with chlorine dioxide, wherein the effluent water discharged from the chemical filtration unit is resupplied to the fish farm or the ship. The ballast water and fish farm treatment system allows circulation water of the ship and fish farm to be reused after completely removing parasites, hazardous organisms, germs, and viruses from the circulation water using a combination of physical, chemical and physiological treatment techniques.

Abstract: A multi-band antenna package structure includes a first redistribution layer; an integrated circuit layer, formed on the first redistribution layer, comprising at least one metal via, at least one metal pillar, an integrated circuit chip, and a molding layer, wherein the molding layer is used to fill openings formed by the metal via, the metal pillar and the integrated circuit chip which are disposed on the first redistribution layer, the metal via is electrically connected to one of the first metal patterns of the first redistribution layer; a second redistribution layer, formed on the integrated circuit layer; and a first antenna unit layer, comprising a first dielectric layer and third metal patterns formed in openings of the first dielectric layer, wherein at least one of the third metal patterns is electrically connected to one of the second metal patterns, and the third metal patterns form a first antenna unit.

Abstract: An I/Q imbalance calibration method includes sequentially inputting a first in-phase and quadrature signals calibration signal to a front-end circuit of the transmitter system to acquire and estimate a first and second calibration signal strengths sequentially, wherein a delta estimation is adopted; calculating an I/Q gain imbalance according to estimated first and second calibration signal strengths; sequentially inputting a second in-phase calibration signal and both of the second in-phase and quadrature calibration signal to the front-end circuit of the transmitter system to acquire and estimate a third and fourth calibration signal strengths sequentially, wherein an I/Q gain imbalance compensation is formed on the first in-phase and quadrature calibration signals to generate the second in-phase and quadrature calibration signals; and calculating an I/Q phase imbalance according to estimated third and fourth calibration signal strengths.

Abstract: A catalyst for selective catalytic reduction is described. Cerium (III) sulfate (cerous sulfate) is bound to a support. The catalyst also includes vanadium oxide and cerium oxide.

Abstract: A reflective modulator comprises a coupler, two diodes and two DC block units. The coupler has an input end used to output an output signal, an output end used to output an output signal, a first load end connected to one of the diodes and a second load end connected to another one of the diodes. The DC block units connect between the diodes and the coupler for DC blocking. A message signal is selectively inputted to both of the two DC block units for operating the state of the two diodes. A BPSK modulator using the reflective modulator and a quadrature modulator using the BPSK modulator are also introduced.

Abstract: A medical imaging apparatus includes a scanner configured to acquire projection data of an object in a plurality of directions, and a data processor configured to generate a volume of interest based on the projection data, generate a two-dimensional (2D) reprojection image by reprojecting the volume of interest in at least one direction, and extract feature information from the 2D reprojection image.

Abstract: Disclosed herein are a norovirus detection sensor and an electrochemical sensing method using the sensor. Specifically, in the norovirus detection sensor including a bioreceptor and a signal detector, a three-dimensional gold nanosurface electrode is used as a substrate, and the bioreceptor employs concanavalin A as a sample capture agent immobilized to the substrate and capable of binding to norovirus. Therefore, the norovirus detection sensor has improved sensitivity by employing the three-dimensional gold nanosurface electrode having a wide surface area. In addition, the norovirus detection sensor has effects of reducing manufacturing costs using a non-antibody material, i.e., concanavalin A which is inexpensive and readily available.

Abstract: Provided are a composition for stimulating insulin secretion from cells, the composition including a Hypoxylon truncatum extract or an active ingredient thereof, and a method of stimulating insulin secretion from cells.

Abstract: The present disclosure is relates to a centrifugal turbo machine equipped with stretchable and variable diffuser vanes capable of securing further improvement of compression efficiency by reducing an angle of the vane and increasing a length of the vane using forced rotating driving of a diffuser during operation of a compressor so as to reduce frictional loss of the fluid when a flow rate of fluid is reduced.

Abstract: The present disclosure relates to a hydrolysate of a mixture of lignocellulosic biomass and seaweed biomass. By mixing seaweed biomass with lignocellulosic biomass and then preparing a hydrolysate, lignocellulosic biomass-derived acetic acid is consumed together with seaweed biomass-derived mannitol. As a result, high sugar productivity can be maintained while reducing fermentation inhibitors. Because the present disclosure can solve the problem of lignocellulosic biomass of decreased fermentation efficiency due to lignocellulose-derived fermentation inhibitors and the problem of seaweed biomass of very low productivity in spite of long fermentation time, the hydrolysate according to the present disclosure may be used to produce biofuels and biochemicals economically.

Abstract: A transparent EMI shielding/absorbing film is provided. The transparent EMI shielding/absorbing film includes a transparent substrate having a top surface on which a pattern having a plurality of engraved grooves is disposed, a conductive layer disposed in the grooves, and a conductive nanowire layer disposed on the top surface of the transparent substrate and electrically connected with the conductive layer.

Abstract: Provided is a diblock copolymer comprising a first block having a repeating unit represented by the following Chemical Formula 1, and a second block having a repeating unit represented by the following Chemical Formula 2:

Abstract: A local high-resolution imaging method and apparatus for a three-dimensional (3D) skeletal image is provided. The method includes determining a volume of interest (VOI) to perform high-resolution imaging from the 3D skeletal image in which an object to be inspected is captured, localizing the VOI based on a finite element method (FEM), and setting a multi-resolution constraint based on a bone mineral density (BMD) between the 3D skeletal image and the localized VOI and reconstructing a skeletal image in which high-resolution imaging is performed on the localized VOI.

Abstract: A method of assigning and managing reference signals in a multi-cell environment, and a network device and a terminal for applying the method, are provided. Reference signal patterns may be assigned to multiple femtocells through a long term coordination of a central control unit that is used to control multiple cells.

Abstract: The present invention relates to a system and method for processing a large scale graph using GPUs, and more particularly, to a system and method capable of processing larger-scale graph data beyond the capacity of device memory of GPUs using a streaming method. A large-scale graph processing system using GPUs according to an aspect of the present invention includes a main memory, device memories of a plurality of GPUs that process graph data transferred from the main memory; a loop controller that processes graph data transfer in a nested loop join scheme in the graph data transfer between the main memory and the device memory of the GPU, and a streaming controller that copies the graph data to the device memory of the GPU in a chunk or streaming manner using a GPU stream according to the nested loop join scheme.

Abstract: An active phased array antenna system with hierarchical modularized architecture is introduced, which includes an array antenna and a beamforming circuit. The array antenna includes a plurality of antenna units, number of which is N and which are arranged in array form. The beamforming circuit is for receiving a plurality of input signals and a plurality of phase control signals, and includes a hierarchical circuit structure based on phase shifters, for outputting a plurality of output signals based on the input signals according to phase values corresponding to the phase control signals and combinations of the phase values; the output signals are respectively coupled to the antenna units so as to generate a radiation pattern, wherein number of the phase control signals is T, T<N, wherein N=?i=1PNi, M=?i=1PNi, M?P?T?M, Ni (i=1 to P), M, P are all positive integers, P?2, Ni?2.

Abstract: A variable PID gain design device, including: a parameter setting unit for setting a natural frequency, a damping ratio, a sampling time, and a nonlinear damping, which enable establishment of an error dynamics required for controlling an object to be controlled; a PID gain induction unit for inducing a PID gain, using the correlation between a PID control and a backstepping control with time delay estimation and nonlinear damping (BCTND), the PID control controlling, using the set parameters, the object to be controlled; and a PID gain calculating unit for calculating a gain of a PID controller by adjusting a BCTND control gain on the basis of the induced PID gain.

Abstract: The present invention provides a selective bonding method of polymer substrates. The present invention allows selective interfacial bonding between a polymer substrate and a parylene layer by using a mask pattern and plasma treatment, and enables the formation of a three-dimensional structure by injecting a fluid into a non-bonded area.

Abstract: Disclosed are an apparatus, a method, and a computer program by which it is determined whether a target network program generated in a software defined network is malicious by extracting a feature of a behavior graph of the target network program and applying machine learning to the behavior graph. Accordingly, a security and safety of a software defined network may be improved by detecting whether a computer program is malicious before the malware is installed.