Abstract: The present invention relates to a system for diagnosis and management of indoor air quality, and more particularly to a system for diagnosis and management of indoor air quality which is capable of obtaining and analyzing air quality data by measuring the indoor air quality of a vehicle or accommodation space and of detecting smoking or non-smoking, the type of smoking, and an abnormal situation by diagnosing at least one of indoor smoking and smoking types. In addition, the present invention relates to a technology for facilitating the management of accommodation by efficiently diagnosing indoor air quality.

Abstract: A bump stopper can be provided for a vehicle. The bump stopper includes an upper part, a lower part, and a connection member. The upper part and the lower part are stacked vertically and have double density. The connection member is positioned at an interface between the upper part and the lower part to connect the upper part and the lower part.

Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.

Abstract: A power semiconductor device includes a semiconductor layer of silicon carbide (SiC), at least one trench that extends in one direction, a gate insulating layer disposed on at least an inner wall of the at least one trench, at least one gate electrode layer disposed on the gate insulating layer, a drift region disposed in the semiconductor layer at least on one side of the at least one gate electrode layer, a well region disposed in the semiconductor layer to be deeper than the at least one gate electrode layer, a source region disposed in the well region, and at least one channel region disposed in the semiconductor layer of one side of the at least one gate electrode layer between the drift region and the source region.

Abstract: The present disclosure provides a display device for inspecting image data that may include a data processing device configured to generate first cyclic redundancy check (CRC) data for a partial area among areas of image data included in a first frame to transmit the image data of the first frame and the first CRC data and a data driving device configured to receive the image data of the first frame and the first CRC data from the data processing device to generate second CRC data for a partial area among areas of the image data included in the first frame on the basis of the image data of the first frame and to compare the first CRC data with the second CRC data to determine whether there is an error in the partial area among areas of the image data included in the first frame.

Abstract: A lightning rod with an electric double layer and electric dipole moment type discharge amplification function, the lightning rod including: a support member (100) for moving a lightning current to the ground; an emission member (200) fitted to the support member (100) to collect charges of the ground according to the approach of a thundercloud and thus emit a large number of ions with the opposite polarity to the polarity of the thundercloud; ground charge chargers (300) fitted to the support member (100) and having spaces formed therein to charge the charges of the ground; an insulation member (400) disposed on top of the emission member (200); and discharge induction members (500) fixedly disposed on top and underside of the emission member (200) by means of the insulation member (400).

Abstract: The present invention relates to electric bicycle speed control device and method. According to the present invention, a torque of a motor for driving a wheel is controlled so that a speed of a pedal driven by a user follows a speed of the wheel, and a torque of the pedal is also controlled by applying an assist level according to the torque of the motor. Therefore, even in an electric bicycle with a chain, it is possible to feel a feeling of the pedal like a bicycle with a chain, and it is possible to adjust the force applied to the pedal according to the assist level.

Abstract: A semiconductor device includes first and second active patterns respectively on the first and second active regions of a substrate, a gate electrode on the first and second channel patterns, active contacts electrically connected to at least one of the first and second source/drain patterns, a gate contact electrically connected to the gate electrode, a first metal layer on the active and gate contacts and including a first and second power line, and first and second gate cutting patterns below the first and second power lines. The first active pattern may include first channel pattern between a pair of first source/drain patterns. The second active pattern may include a second channel pattern between a pair of second source/drain patterns. The first and second gate cutting patterns may cover the outermost side surfaces of the first and second channel patterns, respectively.

Abstract: Disclosed is a filter replacement device which can replace a filter in a radioactivated structure. The filter replacement device comprises: a body; an articulated manipulator provided at one side of the body and having five degrees of freedom; a tool detachably provided at the end of the manipulator so as to perform all operations for replacing a filter in a target object; and a socket detachably provided on the tool.

Abstract: The present invention relates to entangled-type carbon nanotubes which have a bulk density of 31 kg/m3 to 85 kg/m3 and a ratio of tapped bulk density to bulk density of 1.37 to 2.05, and a method for preparing the entangled-type carbon nanotubes.

Abstract: A power semiconductor device includes a semiconductor layer of SiC, a gate insulating layer, a gate electrode layer, a drift region including at least one protruding portion in the semiconductor layer and having a first conductivity type, a well region including a first well region in the semiconductor layer and in contact with the protruding portion, and a second well region in the semiconductor layer outside the gate electrode layer and connected to the first well region, and having a second conductivity type, a source region including a first source region in the first well region and a second source region in the second well region and connected to the first source region, and having the first conductivity type, and a channel region under the gate electrode layer, in the semiconductor layer between the protruding portion and the first source region, and having the first conductivity type.

Abstract: A semiconductor device includes first and second active patterns respectively on the first and second active regions of a substrate, a gate electrode on the first and second channel patterns, active contacts electrically connected to at least one of the first and second source/drain patterns, a gate contact electrically connected to the gate electrode, a first metal layer on the active and gate contacts and including a first and second power line, and first and second gate cutting patterns below the first and second power lines. The first active pattern may include first channel pattern between a pair of first source/drain patterns. The second active pattern may include a second channel pattern between a pair of second source/drain patterns. The first and second gate cutting patterns may cover the outermost side surfaces of the first and second channel patterns, respectively.

Abstract: A method for analyzing a wafer map using a wafer map analyzer includes generating first wafer maps each displaying characteristics of a first wafer for a corresponding channel of a plurality of channels. The first wafer maps are auto-encoded together to extract a first feature. The method also includes determining whether the first feature is a valid pattern, classifying the type of the first feature based on unsupervised learning when the first feature is a valid pattern and extracting a representative image of features classified into the same type as the first feature.

Abstract: The present invention relates to a nozzle for cleaning a substrate by discharging cleaning liquid to the substrate and a method of manufacturing the nozzle and, more particularly, to a nozzle for cleaning a substrate and a method of manufacturing the nozzle, the nozzle having pressure resistance performance capable of enduring high supply pressure of the cleaning liquid.

Abstract: A semiconductor memory device includes a substrate including a cell area and a peripheral area defined by a periphery of the cell area, the cell area including a dummy cell area and a normal cell area, and an active area defined by a cell element isolation film. The device includes a cell area separation film defining the cell area in the substrate, the dummy cell area defining a boundary with the cell area separation film between the normal cell area and the cell area separation film. The device includes a normal bit-line on the normal cell area and extending in a first direction, a dummy bit-line group on the dummy cell area, the dummy bit-line group including a plurality of dummy bit-lines extending in the first direction, and a plurality of storage contacts connected to the active area and located along a second direction perpendicular to the first direction.

Abstract: A semiconductor device includes a substrate including an active pattern, a channel pattern on the active pattern and including semiconductor patterns vertically stacked and spaced apart from each other, a source/drain pattern connected to the semiconductor patterns, a gate electrode on the semiconductor patterns and extending in a first direction, and a gate insulating layer between the semiconductor patterns and the gate electrode. A first semiconductor pattern of the semiconductor patterns includes opposite side surfaces in the first direction, and bottom and top surfaces. The gate insulating layer covers the opposite side surfaces, and the bottom and top surfaces and includes a first region on one of the opposite side surfaces of the first semiconductor pattern and a second region on one of the top or bottom surfaces of the first semiconductor pattern, and a thickness of the first region may be greater than a thickness of the second region.

Abstract: Low-density carbon nanotubes may be prepared using a fluidized bed reactor provided with a side nozzle, and are excellent in electrical properties and appearance characteristics when used as a composite material.

Abstract: A method for analyzing a wafer map using a wafer map analyzer includes generating first wafer maps each displaying characteristics of a first wafer for a corresponding channel of a plurality of channels. The first wafer maps are auto-encoded together to extract a first feature. The method also includes determining whether the first feature is a valid pattern, classifying the type of the first feature based on unsupervised learning when the first feature is a valid pattern and extracting a representative image of features classified into the same type as the first feature.

Abstract: The present invention relates to a nozzle for cleaning a substrate by discharging cleaning liquid to the substrate and a method of manufacturing the nozzle and, more particularly, to a nozzle for cleaning a substrate and a method of manufacturing the nozzle, the nozzle having pressure resistance performance capable of enduring high supply pressure of the cleaning liquid.

Abstract: Provided is a drive apparatus configured to drive an optical device. The drive apparatus includes a preprocessing circuit configured to generate a first reference signal by performing preprocessing on an input signal; a drive circuit configured to generate a driving current for driving the optical device, and generate a replica current based on the driving current; and a calibration circuit configured to generate a replica voltage signal based on the replica current, generate a driving signal by changing a phase of the first reference signal based on the replica voltage signal, and provide the driving signal to the drive circuit.