Abstract: A leakage current detection circuit includes: a mirror circuit configured to copy a leakage current flowing through a node and generate a copy current in a copy node; an oscillation circuit including a charge storage unit, the oscillation circuit being connected to the copy node, charged with the copy current, and configured to generate an oscillation signal by charging and discharging the charge storage unit; and a calculation circuit configured to calculate an amount of the leakage current based on the oscillation signal.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: An infrared heat source module is configured to minimize problems such as wrinkles or cracks in electrodes even if the patterns of a coated part and an uncoated part of the electrodes present in a current collector vary. The module improves a drying efficiency of the coated part of the current collector. An electrode using the infrared heat source module is manufactured by a process.

Abstract: Provided is a carbon monoxide (CO) leak alerting device and method, and more specifically, a CO leak alerting device and method, whereby, by operating on the basis of the Internet of Things (IoT), a CO leak caused by damage to a boiler flue is detected, an alert is issued through two or more among the CO leak alerting device, a boiler controller and a wall pad, boiler ventilation and indoor air ventilation are automatically carried out when the leak is determined to have occurred, and authorities relevant to the CO leak, and a user are directly notified of the CO leak.

Abstract: The present disclosure relates to a system and a method for discharging carbon monoxide (CO) by using a CO leakage alarm device and, more specifically, to a system and a method for discharging CO by using a CO leakage alarm device, the system and the method being operated on the basis of the Internet of things (IoT) so as to: detect CO leakage caused by damage to a boiler flue and sound an alarm through at least two from among the CO leakage alarm device, a boiler controller, a wall pad, and the like, automatically perform boiler ventilation and indoor air ventilation when the leakage is determined; and directly notify CO leakage-related authorities and users about the CO leakage.

Abstract: A system selecting a process key factor in a commercial chemical process, includes: a data extraction unit that extracts tag data in units of a set period; an outlier discrimination unit that discriminates and aggregates outliers by tag by using an outlier extraction reference master; an outlier processing unit that generates an input mart draft excluding the outliers; a derived variable generation unit that generates derived variables for each tag, and generates an advanced input mart having the derived variable added thereto; a yield calculation unit that backs up the result of calculation of a yield by realizing a target value via exclusion and correction of the outliers; and a key factor extraction unit that extracts a yield key factor by calculating importance of each tag, and backs up importance data for each tag.

Abstract: A system for predicting process changes by using key factors in a commercial chemical process, includes: a key factor extraction and individual tag importance backup unit that extracts yield key factors by calculating the importance of each tag, and backs up importance data for each tag; and a yield prediction model training and yield prediction performing unit that performs yield prediction model training by using the importance of each tag accumulated in the key factor extraction and individual tag importance backup unit, and performs yield prediction so as to output a yield prediction result, evaluates performance, and selects an optimal prediction model.

Abstract: The present disclosure relates to a polyamide block copolymer and a polyamide film including the same. The polyamide block copolymer according to the present disclosure makes it possible to provide a polyamide film exhibiting excellent mechanical properties while being colorless and transparent.

Abstract: A data receiving device may include a dummy stage block. The dummy stage block may include m dummy stages, wherein m is a natural number greater than or equal to two. Each of the m dummy stages may be configured to remove inter-symbol interference (ISI) from a dummy input signal using dummy coefficient information to generate a dummy output signal free of the ISI. Each of the m dummy stages may be further configured to output the dummy output signal. A normal stage block may include n normal stages, wherein n is a natural number greater than or equal to two. Each of the n normal stages may be configured to remove ISI from an input signal using coefficient information to generate an output signal free of the ISI and may be further configured to output the output signal.

Abstract: The present disclosure relates to a display device, and the display device according to an embodiment includes: a substrate including a display area and a peripheral area; a plurality of light-emitting elements positioned in a display area; a plurality of pixel circuits connected to a plurality of light-emitting elements, respectively; a sensor positioned on the peripheral area of the substrate; a leakage current detecting circuit connected to the sensor; and a light emitting wiring connected to the leakage current detecting circuit and connected to at least one of the plurality of light-emitting elements, wherein the sensor includes a first sensor and the first sensor includes a first sensing transistor, and a first conductive pattern spaced apart from the channel of the first sensing transistor, and the first conductive pattern is positioned in the same layer as at least one of a plurality of layers configuring the transistor.

Abstract: A battery module includes a module housing including a first plate in which one side is open, a second plate coupled with the first plate to form an internal space, and a partition member disposed across the internal space to couple the first plate with the second plate; and a battery cell stack disposed in the internal space, in which a plurality of battery cells are stacked.

Abstract: The present invention relates to an apparatus and a method for detecting a water level, which are capable of generating a water level detection signal which is alternating current output to a water level detection sensor by using two direct current control signals alternately output from a micom.

Abstract: Disclosed herein is a method of automatically cleaning boiler pipes. The provision of a pipe-cleaning tank on one side of a casing to store a cleaning solution therein and a tank supply valve in the pipe-cleaning tank allows the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.

Abstract: Provided herein may be a semiconductor memory device. The semiconductor memory device may include a memory cell array, a peripheral circuit, and control logic. The memory cell array includes a plurality of memory cells. The peripheral circuit performs a read operation on the memory cells. The control logic controls the read operation of the peripheral circuit. During the read operation, the control logic controls the peripheral circuit so that a read voltage is applied to a selected word line among a plurality of word lines coupled to the memory cells, a first pass voltage is applied to an unselected word line disposed adjacent to the selected word line and a second pass voltage is applied to an unselected word line that is not disposed adjacent thereto. The peripheral circuit adjusts a magnitude of the first or second pass voltage based on a temperature of the semiconductor memory device.

Abstract: Disclosed herein is a system for automatically cleaning boiler pipes, which includes a pipe-cleaning tank provided on one side of a casing to store a cleaning solution therein and a tank supply valve provided in the pipe-cleaning tank, so as to allow the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.

Abstract: The present disclosure relates to a gas and earthquake detector, a gas and earthquake remote monitoring system using the same and a method thereof, and more particularly, to a gas and earthquake detector, a gas and earthquake remote monitoring system using the same and a method thereof, which detect a plurality of gases and earthquakes, detect and autonomously warn gas leakage of a plurality of detection target devices sensitive to the gas and the earthquake, and the earthquake around the detection target device, and easily register the gas leakage and the earthquake in a remote management means through a user mobile terminal of a user to monitor the gas leakage of the detection target device and the earthquake at a detection target device location through the remote management means.

Abstract: A memory device includes: a first string including a plurality of first memory cells, and a first select transistor connected between a first conductive line and the plurality of first memory cells; a second string including a plurality of second memory cells, and a second select transistor connected between the first conductive line and the plurality of second memory cells; a peripheral circuit configured to perform an erase operation of the first and second strings; and control logic. The control logic is configured to control the peripheral circuit to, during the erase operation, apply a first erase voltage to the first conductive line, float a first select line connected to the first select transistor after the first erase voltage is applied, and float a second select line connected to the second select transistor after the first select line is floated.

Abstract: A heat exchanger having a circulation guide, the heat exchanger comprising: a heat exchanger body; an inlet port, which is connected to a bottom end of the heat exchanger body; a discharge port which is connected to a top end of the heat exchanger body; a top body tube installed at a top end of an inside of the heat exchanger body; a bottom end plate installed at a bottom end of the inside of the heat exchanger body; and combustion pipes, which each have a top end connected to pass through a floor surface of the top body tube.

Abstract: The present invention provides a hot water storage-type boiler having both a heat amount proportional control function and a backflow prevention function to prevent a backflow of exhaust gas with a simple structure. In the present invention, since a check valve is integrally coupled to a burner duct, there is an effect of convenient assembly. In addition, since the check valve is built in the burner duct, the check valve does not protrude to the outside, thereby having an effect that a separate space is not required.

Abstract: The present invention relates to an apparatus and method for detecting an earthquake using an accelerometer. More particularly, the present invention relates to an apparatus and method for detecting an earthquake using an accelerometer, the apparatus and method being capable of improving reliability of acceleration data obtained from the accelerometer and reliably determining whether an earthquake has occurred on the basis of a change between current acceleration data and previous acceleration data.