Abstract: A dynamic image split method for a dual cell LCD that includes a back cell and a front cell is proposed to obtain a smoother back-cell image. Multiple desired effective transmittances that correspond to a group of front-cell pixels are taken into consideration in determining a transmittance for a back-cell pixel. The front-cell pixels in the group are related in position to the back-cell, and cooperatively form an area that is larger than and overlaps an area of the back-cell pixel.

Abstract: A location of a broken electrical conductor of an electric power delivery system may be detected by monitoring a rate of change of phase voltage and/or a rate of change of zero-sequence voltage at various points on the conductor. Intelligent electronic devices (IEDs) such as phasor measurement units may be used to obtain measurements and calculate synchrophasors. The synchrophasors may be used by a central controller to determine which two continuous IEDs measure rates of change of voltages of opposite polarities, where the broken conductor is between the two continuous IEDs. The synchrophasors may be used by a central controller to determine which two continuous IEDs where one exhibits a zero-sequence voltage magnitude that exceeds a predetermined threshold for a predetermined time, wherein the zero-sequence voltage magnitude of the other of the continuous IEDs does not exceed the predetermined threshold.

Abstract: Systems and methods for autonomously regulating grid edge devices (GEDs) are disclosed. In one embodiment, a method may include obtaining a first setpoint voltage for a GED. The GED may be implemented on a secondary side of a distribution line providing electricity for a consumer. The method may also include generating an average VAR value based on VARs generated by the GED over a first time interval. The method may include generating an average voltage value based on voltage received by the GED over a first time interval. The method may include adjusting the first setpoint voltage to a second setpoint voltage based on a difference between the average voltage value and the first setpoint voltage exceeding a voltage threshold value.

Abstract: A balloon-anchored, biopsy device includes a first elongated tube, a second elongated tube, and a flexible biopsy needle. A section of the first elongated tube near the distal tip may include a balloon for insertion into a blood vessel that when inflated, anchors the section in the blood vessel near a biopsy site. The second elongated tube includes a beveled distal exit of a second lumen, which may be positioned at the biopsy site when the first elongated tube is anchored in the blood vessel by the inflated balloon. The flexible biopsy needle is configured to exit the beveled distal exit for penetration into tissue at the biopsy site at a predefined angle between a longitudinal axis of the section of the first elongated tube and a longitudinal axis of the flexible biopsy needle, and to acquire a biopsy sample of the target organ at the biopsy site.

Abstract: A separating and coupling system of a nuclear fuel assembly top nozzle. The system includes a top nozzle; a flow channel plate provided at a lower portion of the top nozzle and allowing coolant to pass therethrough; a guide hole provided in the flow channel plate; a lock insert in a hollow shape including an insertion part configured to be inserted into the guide hole; and a separation member configured to separate the lock insert from the guide hole. The circumference of the insertion part is variable in size, thereby being capable of being inserted into and separated from the guide hole. Accordingly, disassembly and reassembly of the top nozzle of the nuclear fuel assembly and the lock insert are simplified, thereby simplifying the process and reducing the number of processes. The system is effective for maintenance and repair of the nuclear fuel assembly.

Abstract: Disclosed is a system for separating and coupling a top nozzle of a nuclear fuel assembly. There is provided a lock insert configured to support the top nozzle of the nuclear fuel assembly by being coupled to a guide hole provided in a flow channel plate of the top nozzle, the lock insert including: a body in a hollow shape; and an insertion part provided on a top portion of the body and inserted into the guide hole, wherein a circumference of the insertion part is variable in size, thereby being capable of being inserted into the guide hole. Accordingly, disassembly and reassembly of the top nozzle of the nuclear fuel assembly and the lock insert are simplified, thereby simplifying and reducing the number of processes involved therein. Accordingly, the system is effective for maintenance and repair of the nuclear fuel assembly.

Abstract: The present invention relates to a top nozzle and a nuclear reactor in which an in-core instrument, which is supposed to be inserted through a top head of a nuclear reactor, is inserted through a guide pin for an upper core plate. In a nuclear reactor including guide pins for aligning a top nozzle for a nuclear fuel assembly with an upper core plate of a nuclear reactor, a guide hole (210) is axially formed through the guide pins (200) and in-core instruments (10) are inserted through the guide holes (210).

Abstract: The present invention provides an evaluating system and the use thereof for the efficacy of antimicrobial peptide, which includes the following steps: (a) constructing a peptide by a first input unit, and load the peptide into an aqueous solution for a first time for equilibration; (b) constructing a lipid bilayer by a second input unit, and load the lipid bilayer into an aqueous solution for a second time for equilibration; (c) Using a first processing unit, simulations are carried out for an aqueous system containing an equilibrated peptide from the first input unit and the equilibrated lipid bilayer from the second input unit; (d) calculating the partition free energy of the peptide by a second processing unit; (e) outputting the prediction by an output unit, wherein the output unit is connected with the first processing unit and the second processing unit.

Abstract: Embodiments of a bottom nozzle of a nuclear fuel assembly provided with flow holes by utilizing a layered aircraft airfoil structure are provided. The bottom nozzle not only increases efficiency of filtering foreign substances by minimizing a size of the flow holes by constituting a shape of flow holes into cross stripes but also prevents coolant water flow velocity drop through prevention of coolant water pressure drop by constituting a lateral sectional shape of the grid frames constituting the cross stripes into an aircraft airfoil type.

Abstract: The present invention relates to a top nozzle and a nuclear reactor in which an in-core instrument, which is supposed to be inserted through a top head of a nuclear reactor, is inserted through a guide pin for an upper core plate. In a nuclear reactor including guide pins for aligning a top nozzle for a nuclear fuel assembly with an upper core plate of a nuclear reactor, a guide hole (210) is axially formed through the guide pins (200) and in-core instruments (10) are inserted through the guide holes (210).

Abstract: A dustproof device is provided for use with a ball screw which includes a screw rod and a nut mounted around the screw rod. The dustproof device includes an annular body and an elastic valve plate. The annular body is disposed inside the nut and penetrated by the screw rod and has an outer annular surface provided with a debris exit. The debris exit has one end in communication with a spiral passage formed between the screw rod and the nut. The elastic valve plate, which is provided at the opposite end of the debris exit of the annular body, can be pushed open by a fluid and thus opens the debris exit, allowing the debris generated by the ball screw to be discharged through the debris exit along with the fluid, thereby contributing to extending the service life of the ball screw.

Abstract: The present invention relates to a lower end fitting for reducing flow resistance due to an in-core instrument in a nuclear fuel assembly, that is, a lower end fitting (100) having a plurality of flow holes for a nuclear fuel assembly, in which the flow holes (121) are formed under an assembly groove in which an instrumentation tube (131) for a nuclear fuel assembly is inserted, and at least two or more flow holes (121) are formed at a predetermined distance from the central axis (C) of the instrumentation tube (131).

Abstract: A location of a broken electrical conductor of an electric power delivery system may be detected by monitoring a rate of change of phase voltage and/or a rate of change of zero-sequence voltage at various points on the conductor. Intelligent electronic devices (IEDs) such as phasor measurement units may be used to obtain measurements and calculate synchrophasors. The synchrophasors may be used by a central controller to determine which two continuous IEDs measure rates of change of voltages of opposite polarities, where the broken conductor is between the two continuous IEDs. The synchrophasors may be used by a central controller to determine which two continuous IEDs where one exhibits a zero-sequence voltage magnitude that exceeds a predetermined threshold for a predetermined time, wherein the zero-sequence voltage magnitude of the other of the continuous IEDs does not exceed the predetermined threshold.

Abstract: A location of a broken electrical conductor of an electric power delivery system may be detected by monitoring a rate of change of phase voltage and/or a rate of change of zero-sequence voltage at various points on the conductor. Intelligent electronic devices (IEDs) such as phasor measurement units may be used to obtain measurements and calculate synchrophasors. The synchrophasors may be used by a central controller to determine which two continuous IEDs measure rates of change of voltages of opposite polarities, where the broken conductor is between the two continuous IEDs. The synchrophasors may be used by a central controller to determine which two continuous IEDs where one exhibits a zero-sequence voltage magnitude that exceeds a predetermined threshold for a predetermined time, wherein the zero-sequence voltage magnitude of the other of the continuous IEDs does not exceed the predetermined threshold.

Abstract: A dustproof device is provided for use with a ball screw which includes a screw rod and a nut mounted around the screw rod. The dustproof device includes an annular body and an elastic valve plate. The annular body is disposed inside the nut and penetrated by the screw rod and has an outer annular surface provided with a debris exit. The debris exit has one end in communication with a spiral passage formed between the screw rod and the nut. The elastic valve plate, which is provided at the opposite end of the debris exit of the annular body, can be pushed open by a fluid and thus opens the debris exit, allowing the debris generated by the ball screw to be discharged through the debris exit along with the fluid, thereby contributing to extending the service life of the ball screw.

Abstract: A dustproof device is provided for use with a ball screw which includes a screw rod and a nut mounted around the screw rod. The dustproof device includes an annular body and an elastic valve plate. The annular body is provided at one end of the nut and penetrated by the screw rod and has an outer annular surface provided with a debris exit. The debris exit has one end in communication with a spiral passage formed between the screw rod and the nut. The elastic valve plate, which is provided at the opposite end of the debris exit of the annular body, can be pushed open by a fluid and thus opens the debris exit, allowing the debris generated by the ball screw to be discharged through the debris exit along with the fluid, thereby contributing to extending the service life of the ball screw.

Abstract: The present invention relates to a lower end fitting for reducing flow resistance due to an in-core instrument in a nuclear fuel assembly, that is, a lower end fitting (100) having a plurality of flow holes for a nuclear fuel assembly, in which the flow holes (121) are formed under an assembly groove in which an instrumentation tube (131) for a nuclear fuel assembly is inserted, and at least two or more flow holes (121) are formed at a predetermined distance from the central axis (C) of the instrumentation tube (131).

Abstract: The present invention relates to a top nozzle and a nuclear reactor in which an in-core instrument, which is supposed to be inserted through a top head of a nuclear reactor, is inserted through a guide pin for an upper core plate. In a nuclear reactor including guide pins for aligning a top nozzle for a nuclear fuel assembly with an upper core plate of a nuclear reactor, a guide hole (210) is axially formed through the guide pins (200) and in-core instruments (10) are inserted through the guide holes (210).

Abstract: Disclosed herein is a power headrest apparatus capable of automatically adjusting vertical and forward-backward movement of a headrest using motors, and of sufficiently securing an amount of forward-backward movement of the headrest using a pair of link members, which are arranged to intersect with each other in an X form, while a width of the headrest in forward and backward directions thereof is maintained below a certain level.

Abstract: Disclosed herein is a 4-way lumbar support capable of automatically adjusting a vertical curved position and an amount of curvature of a lumbar plate, while securely supporting the lumbar plate even when a large load, such as the rear-end collision of a vehicle, is applied to the lumbar plate. In addition, the 4-way lumbar support can adjust an amount of forward curvature of the lumbar plate using a pusher including a pair of hinge members, thereby enabling the amount of forward curvature of the lumbar plate to be adjusted across a wider range without increasing the thickness of a seat back in the forward and backward directions thereof.