Abstract: According to the present invention, accurate T2* and vascular images are concurrently acquired by acquiring a T2* image without a flow compensation and a T2* image with a flow compensation and subtracting the two images to reconstitute an image showing the flow phenomenon. Furthermore, an accurate T2* image can be acquired by using the readout gradient without the flow compensation and also the accurate T2* and vascular images can be concurrently acquired. The clinical judgment for blood flow rate of the blood vessel and the clinical judgment for acute stroke can be concurrently made, and so the present invention can be widely utilized in clinical practice.

Abstract: According to one embodiment of the present disclosure, there is provided a processing method including obtaining parallelized unit information for video parallel processing; obtaining performance information that indicates performance of a plurality of cores; and allocating a plurality of video unit data to the plurality of cores based on the parallelized unit information and the performance information. The parallelized unit information includes complexity information that indicates complexity of the plurality of video unit data.

Abstract: Disclosed is a magnetic resonance imaging (MRI) system. The disclosed MRI system includes a system controller capable of separately acquiring MR image signals of different elements existing in an object. The system controller includes a first system controller capable of acquiring an MR signal of a first element, and a second system controller capable of acquiring an MR signal of a second element different from the first element. The first system controller and the second system controller are physically separated. The first system controller and the second system controller control a first radio frequency (RF) coil element and a second RF coil element of an RF coil, respectively.

Abstract: Images where the vascular walls are automatically divided are obtained by obtaining two MRI images that reflect different properties of the blood vessel and obtaining the difference between the two images. This can image both the vascular inner and the outer walls, thereby obtaining the exact size of the blood vessel, and the thickness between the vascular inner and outer walls. Therefore, it is possible to stably perform the operation using a stent with an accurate size during the stent procedure.

Abstract: A variable PET apparatus allows structural changes of detector modules in transversal and longitudinal directions to correspond to various imaging purposes and a cross-sectional diameter of a subject while maintaining an arrangement of the detector modules to be close to a true circle. The variable PET apparatus includes: a gantry having an opening on a longitudinal axis; and detector modules supported on the gantry and arranged a predetermined distance apart from each other such that a detection ring is configured with a diameter in a circumferential direction, wherein the gantry is driven by a gantry drive member, and the detector modules are driven by a detector module drive member. According to the present invention, structural changes of the detector modules in the PET apparatus is possible to correspond to a cross-sectional diameter of a subject without additional devices, thereby improving the spatial resolution and sensitivity.

Abstract: Disclosed is a multi-axially variable detection module of a PET apparatus, the detection module including: a gantry having a through-hole extending from a side to an opposite side of the gantry; a detection module in which a plurality of detectors for detecting gamma rays emitted from a subject are arranged annularly along an inner circumference of the gantry; and a driving means for moving the plurality of detectors constituting the detection module in a radial direction of the detection module, wherein each of the plurality of detectors is rotatable in a longitudinal direction of the detection module to vary a length thereof in the longitudinal direction, and each of the plurality of detectors include multiple detector elements which are engaged with each other in a hinged manner in a transverse direction (circumferential direction) of the detection module to form a flat or an arc shape.

Abstract: Disclosed is a sinus balloon catheter. The sinus balloon catheter includes a body unit, a bending angle adjusting unit that includes a bending angle adjusting lever and a rotary plate, and a guide unit that includes a balloon, and has a pair of bending angle adjusting wires therein. The guide unit includes a first guide body, and a second guide body that is slidably provided in the first guide body, the balloon is provided on the second guide body, the rotary plate is connected to any one of the pair of bending angle adjusting wires to be rotated, and the other bending angle adjusting wire is maintained within the guide unit, and the guide unit is inserted into any one of a sphenoidal sinus, a frontal sinus, and a maxillary sinus.

Abstract: A mobile robot to which a shadow removal method and system for surveillance camera-based mobile robot control according to the present invention is applied acquires images from two closely installed surveillance cameras indoors and performs shadow removal at an improved speed compared to the conventional speed, to recognize the obstacle in the image to avoid it and travel. It is anticipated that through the mobile robot using the surveillance camera-based shadow removal method and system of the present invention, the practical use of an intelligent image surveillance system that can automatically analyze images and recognize a dangerous situation to take quick action may be accelerated.

Abstract: A flipped fitting method that performs a flipped curve fitting on a maximum of 256 MRI images obtained at different echo times using an EPI image which obtains a plurality of MRI images at a plurality of different echo times within a TR period after application of an excitation RF pulse. Then, T2* values are fitted based on a sufficient amount of acquired TE images, such that it is possible to provide much more accurate T2* values than these provided by underestimated or overestimated fitting by the existing method which is based on only 12 images and to obtain rapid and accurate data without nerve stimulation or acoustic noise. Further, the flipped fitting method is more suitable and accurate for showing the real T2* values.

Abstract: Disclosed is an artificial valved conduit that is a composite valved graft comprising double sewing cuffs, which can be easily used in aortic root replacement. The composite valved graft comprises a valve and a conduit part connected to the valve. The conduit part comprises a sewing cuff positioned on the outer circumference thereof. The sewing cuff comprises a first sewing cuff and a second sewing cuff positioned below the first sewing cuff. Accordingly, a double suture is easily performed, so that it is possible to prevent the loss of blood after a surgery and to reduce surgical time at the same time.

Abstract: The present invention relates to a novel spiroquinone derivative compound, a production method thereof, and a pharmaceutical composition for preventing or treating neurological disorders which contains the compound as an active ingredient

Abstract: Provided are a stem cell-nano anticancer drug complex in which an anticancer drug based on carbon nanotubes (CNT) and gold (Au) nano particles is loaded on the surface of stem cells, which can overcome side effects of conventional stem cells and targeting limitations of nano anticancer drugs and whose anticancer effect is very excellent, the use thereof, and a method for preparing the same.

Abstract: A semiconductor memory device and a method of fabrication of the same are provided. The semiconductor memory device comprises a two-terminal memory cell sequentially joined together with a first high concentration doping region doped with a first conductive dopant, a second base region doped with a second conductive type dopant, a first base region doped with the first conductive type dopant, and a second high concentration doping region doped with the second conductive type dopant, wherein a write voltage of the memory cell is controlled by adjusting the lengths or doping concentrations of the first and second base regions.

Abstract: A junctionless field-effect transistor is provided and has an ultra-thin low-crystalline silicon channel. A fabrication method thereof also is provided for enabling greatly improved economics by significantly reducing the process costs while having electrical characteristics similar to those of the one formed on an SOI substrate by source/channel/drain regions formed in a junctionless ultra-thin low-crystalline silicon layer that has lower crystallinity than that of single-crystal silicon and that has a thickness of 20 nm or less on a bulk silicon substrate instead of an expensive SOI substrate.

Abstract: A curved movable beam-stop array which has a generator, a curved grid and a controller. The generator generates radiation beams while rotating to a gantry angle. The curved grid is positioned in the radiation direction of the radiation beams generated from the generator. The controller controls operations of the grid. A plurality of slits of the grid are spaced apart from each other at a predetermined distance and allow at least a portion of the radiation beams generated from the generator to pass through. The controller moves the slit by a predetermined distance when the generator moves by a predefined angle.

Abstract: A method for preparing a three-dimensional graphene structure, and an energy storage device are provided, the method including forming a graphene precursor by heating a carbohydrate and a gas generator, forming a graphene structure having a cavity therein by carbonizing the graphene precursor, and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure, and are connected with the cavity.

Abstract: The present invention relates to a pharmaceutical composition for preventing or treating pulmonary fibrosis comprising an isothiocyanate-based compound and a biguanide agent as active ingredients, a method for preventing or treating pulmonary fibrosis using the composition, and use of the isothiocyanate-based compound and the biguanide agent for the preparation of the prophylactic or therapeutic agent for preventing or treating pulmonary fibrosis. The pharmaceutical composition comprising the isothiocyanate-based compound and the biguanide agent as active ingredients of the present invention can be used to stably prevent or treat pulmonary fibrosis for which specific therapeutic agents have not yet been known, and thus it can be widely used for health and welfare improvement through treatment of pulmonary fibrosis.

Abstract: A mobile robot employing a method and a system for localizing the mobile robot using external surveillance cameras acquires images from the surveillance cameras installed indoors adjacent to each other, recognizes objects included in the images by removing shadows from the images and performing a homography scheme, and avoids the recognized objects. The mobile robot employing the method and the system for localizing the mobile robot using the external surveillance cameras enables rapider localization and lower price as compared with a conventional image-based autonomous robot, so that the commercialization of a service robot is accelerated.

Abstract: The present invention relates to a device for measuring bladder pressure, comprising: a measurement rod inserted into the abdomen of a user to measure both abdomen pressure and bladder pressure; and a body unit provided to be worn on the waist of the user and electrically connected to the measurement rod so as to calculate and store urinary detrusor pressure measured by subtracting a measurement abdomen pressure from a measurement bladder pressure measured by the measurement rod.

Abstract: A resistive random access memory device is provided with a tunneling insulator layer between a resistance change layer and a bottom electrode. Thus, it is possible: to raise the selection (on/off) ratio by the current of a direct tunneling induced by low voltage in the unselected cell and the current of an F-N tunneling induced by high voltage in the selected cell, to efficiently suppress the leakage current in the read operation, to make a low current operation less ?A level by controlling the thickness of the tunneling insulator layer, and to be simultaneously fabricated together with circuit devices by forming the bottom electrodes (word lines) with a semiconductor material.