Abstract: A pixel includes: a storage capacitor connected between a first power supply voltage and a gate node; a first transistor including a gate electrode connected to the gate node; a second transistor to transfer a data signal to a source of the first transistor in response to a scan signal; a third transistor to diode-connect the first transistor in response to the scan signal, and including first and second sub-transistors serially connected between the gate node and a drain of the first transistor; a fourth transistor to transfer an initialization voltage to the gate node in response to an initialization signal, and including third and fourth sub-transistors serially connected between the gate node and the initialization voltage; and an organic light emitting diode including a cathode connected to a second power supply voltage. At least one of the second and fourth sub-transistors includes a bottom electrode.

Abstract: The present disclosure relates to a method for carrying out dose delivery quality assurance for high-precision radiation treatment, in which parameters affecting a pass rate of dose delivery quality assurance can be derived through regression analysis, which is a known statistical analysis method, and a pass rate prediction model capable of predicting each parameter and the pass rate of dose delivery quality assurance can be derived, and accordingly, it can be predicted in advance whether dose delivery quality assurance will be passed according to the parameters through the above prediction model, without repeatedly carrying out dose delivery quality assurance according to a patient's treatment plan, and as a result, the efficiency of dose delivery quality assurance can be enhanced, and the time or capacity required for such quality assurance is reduced, such that radiation treatment for an actual patient can be quickly and precisely carried out.

Abstract: An ultrasonic diagnosis and therapy apparatus according to an embodiment may include an ultrasound output unit including a plurality of ultrasound output elements, a circuit board that can be attached and detached through a connecting board connected to the ultrasound output unit to determine a function of the ultrasound output unit, and a control unit configured to control a setting value of each of the plurality of ultrasound output elements, wherein therapy and diagnosis functions are selectively or simultaneously implemented by changing the circuit board. With the ultrasonic diagnosis and therapy apparatus, it is possible to selectively or simultaneously implement the therapy and diagnosis functions by selectively mounting different types of circuit boards that determine the type and function of ultrasound outputted from the ultrasonic transducers.

Abstract: An ultrasonic diagnosis and therapy apparatus according to an embodiment may include an ultrasound output unit including a plurality of ultrasound output elements, a circuit board that can be attached and detached through a connecting board connected to the ultrasound output unit to determine a function of the ultrasound output unit, and a control unit configured to control a setting value of each of the plurality of ultrasound output elements, wherein therapy and diagnosis functions are selectively or simultaneously implemented by changing the circuit board. With the ultrasonic diagnosis and therapy apparatus, it is possible to selectively or simultaneously implement the therapy and diagnosis functions by selectively mounting different types of circuit boards that determine the type and function of ultrasound outputted from the ultrasonic transducers.

Abstract: Provided are a neurovascular unit (NVU)-on-a-chip and a method of fabricating the same, which 3-dimensionally integrates various human brain cells in a microfluidic platform by using a brain cell co-culture technique so as to simulate a similar environment to the human brain in vitro. The NVU-on-a-chip includes an extracellular matrix (ECM) simulation material (70) in a gel state; and at least one channel (75) which passes through the ECM simulation material (70) and perfuses a culture medium, in which the ECM simulation material (70) contains a plurality of types of human brain cells on an outer side of the channel (75), a brain microvessel endothelial cell lining (91) is formed on an inner side of the channel (75), and the plurality of types of human brain cells and the brain microvessel endothelial cell lining (91) contact each other through the channel (75) to simulate a blood brain barrier (BBB) of a human brain and a neurovascular unit (NVU) of the human brain including the BBB.

Abstract: Provided are a neurovascular unit (NVU)-on-a-chip and a method of fabricating the same, which 3-dimensionally integrates various human brain cells in a microfluidic platform by using a brain cell co-culture technique so as to simulate a similar environment to the human brain in vitro. The NVU-on-a-chip includes an extracellular matrix (ECM) simulation material (70) in a gel state; and at least one channel (75) which passes through the ECM simulation material (70) and perfuses a culture medium, in which the ECM simulation material (70) contains a plurality of types of human brain cells on an outer side of the channel (75), a brain microvessel endothelial cell lining (91) is formed on an inner side of the channel (75), and the plurality of types of human brain cells and the brain microvessel endothelial cell lining (91) contact each other through the channel (75) to simulate a blood brain barrier (BBB) of a human brain and a neurovascular unit (NVU) of the human brain including the BBB.

Abstract: Disclosed is a multiple cast-in insert apparatus for concrete, including a supporting body fixed to a plate material configured to pour the concrete and having a first screw formed along an inner circumferential surface of a hollow coupling hole formed therein to pass therethrough; a lifting body including a coupling part having a second screw thread formed on an outer circumferential surface thereof to be screwed with the first screw thread and thus to be selectively moved up and down through the hollow coupling hole and also having an anchor coupling hole formed therein, and a leveling support part integrally formed along an upper edge of the coupling part to protrude outward in a radial direction; and a spacer body disposed above the supporting body and having a coupling through-hole formed therein so that the coupling part passes therethrough.

Abstract: Disclosed is a multiple cast-in insert apparatus for concrete, including a supporting body fixed to a plate material configured to pour the concrete and having a first screw formed along an inner circumferential surface of a hollow coupling hole formed therein to pass therethrough; a lifting body including a coupling part having a second screw thread formed on an outer circumferential surface thereof to be screwed with the first screw thread and thus to be selectively moved up and down through the hollow coupling hole and also having an anchor coupling hole formed therein, and a leveling support part integrally formed along an upper edge of the coupling part to protrude outward in a radial direction; and a spacer body disposed above the supporting body and having a coupling through-hole formed therein so that the coupling part passes therethrough.

Abstract: Various embodiments of a warning indicator for use with wiper blades are provided. In one embodiment, the warning indicator has a housing, a counting unit disposed in the housing, an indicating unit exposed on the housing and an electrical source. The housing is coupled to an oscillating wiper blade of a windshield wiper device. The counting unit is configured to detect oscillating movements of the wiper blade one at a time. The counting unit is configured such that an oscillating number of the wiper blade is accumulatively increased. The indicating unit indicates a warning under control of the counting unit when the oscillating number comes to a predetermined value. The electrical source supplies an electrical power to the counting unit and the indicating unit.

Abstract: Various embodiments of a warning indicator for use with wiper blades are provided. In one embodiment, the warning indicator has a housing, a counting unit disposed in the housing, an indicating unit exposed on the housing and an electrical source. The housing is coupled to an oscillating wiper blade of a windshield wiper device. The counting unit is configured to detect oscillating movements of the wiper blade one at a time. The counting unit is configured such that an oscillating number of the wiper blade is accumulatively increased. The indicating unit indicates a warning under control of the counting unit when the oscillating number comes to a predetermined value. The electrical source supplies an electrical power to the counting unit and the indicating unit.