Abstract: An optical imaging system is provided. The optical imaging system has a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object-side to an image-side. The optical imaging system satisfies the following conditional expressions: F No.?1.5, 0.5<EPD/TTL<0.7, where EPD is an entrance pupil diameter, and TTL is a distance from an object-side surface of the first lens to an imaging plane.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: Proposed is an all-solid-state battery including a self-standing sheet layer positioned on a negative electrode current collector. The all-solid-state battery may include the negative electrode current collector, the self-standing sheet layer positioned on the negative electrode current collector, a solid electrolyte layer positioned on the sheet layer, a positive electrode active material layer positioned on the solid electrolyte layer, and a positive electrode current collector positioned on the positive electrode active material layer. The sheet layer contains carbon nanotubes.

Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.

Abstract: The present invention relates to a teaching aid for knot tying practice, the teaching aid enabling a user to easily practice tying various knots such as a knot needed in daily life or a knot for traditional crafts. The teaching aid for knot tying practice of the present invention comprises: a bottom plate (110); a string supporter (120) vertically coupled to as upper part of the bottom plate and having a string hanging groove (121) formed from the top thereof; fixing clips (130, 130a) fitted into the top of the string supporter to restrict the movement of a string hung on the string hanging groove; and an inclined supporter (140) coupled to an upper part of the bottom plate to support the string supporter.

Abstract: The present invention relates to an ambulance having an infectious disease blocking function and an interior pressure control method therefor, the ambulance having a driver seat, a vehicle body and an emergency care compartment which is mounted on the vehicle body and which has a space in which a patient can be placed, and comprising an air pressure regulation part for setting the inside of the emergency care compartment to have a positive pressure or a negative pressure, and a control part for selectively controlling a positive pressure or a negative pressure of the air pressure regulation part.

Abstract: Systems and method are provided for managing inventory by determining product prices based on product characteristics. One method includes, based on a condition of the product and an age of the product, determining a new price of a returned product and modifying the database to assign the new price to the product identifier. Based on a determination that the product is not a returned product from a customer: calculating an inventory rate associated with the product; based on the calculated inventory rate, determining a new price of the product; and modifying the database to assign, to the product identifier, the inventory rate and the new price.

Abstract: Disclosed are a multi pickup coil for wireless charging of an electric vehicle such as an electric bus or an electric passenger car and industrial equipment while stopping or driving, and a pickup apparatus having the multi pickup coil. The multi pickup coil and the pickup apparatus provide high-capacity and high-efficiency wireless charging per unit area by performing performance enhancement through an optimal design in order to overcome the limitations of a circular pickup coil.

Abstract: A water purifier includes: a case including components; a cover mounted to the case to be opened and closed; a support frame mounted to the inside of the case and having at least one mounting part; a filter module detachably mounted to the case through the mounting part to filter and purify introduced raw water; a first flow path module including at least one flow path through which raw water flows and detachably mounted to the case between the case and the support frame to fix the filter module to the inside of the case; a second flow path module including at least one flow path through which purified water flows and which is connected to the components and the filter module, the second flow path module being detachably mounted to the case through the mounting part; and a faucet module mounted to the case to discharge purified water.

Abstract: A display apparatus comprises a substrate including a display area and a non-display area adjacent to the display area, a plurality of pixels disposed in the display area, a gate driver disposed on both sides of the display area in the non-display area, the gate driver comprising a plurality of stages including a first stage and a second stage, and a plurality of gate lines extending from the gate driver to the display area, wherein the plurality of gate lines include a first gate line including a linear portion and coupled to the first stage, and a second gate line including a linear portion and a curved portion and coupled to the second stage, and wherein a size of the second stage may be larger than a size of the first stage.

Abstract: Disclosed is a lumbar supporting system of a chair and a chair having the same, and an object to be achieved by the present disclosure is to provide a lumbar supporting system of a chair and a chair having the same, which are capable of accurately supporting a user's waist according to the user's body type by adjusting a height and depth of a lumbar pad by using a vertical operating force.

Abstract: An aberration correction method and apparatus. The apparatus includes at least one processor, and an input/output unit configured to receive an captured image, wherein the processor is configured to initialize a first matrix or a second matrix by reducing a matrix of a point spread function (PSF) of a lens included in a capturing device used to capture the captured image, iteratively perform an aberration removal and a noise removal based on the captured image and the first matrix or the second matrix, and output a final original image as a result of the iteratively performing. Here, the first matrix is a matrix obtained by reducing the number of indices indicating light arrival points of the matrix of the PSF, and the second matrix is a matrix obtained by reducing the number of indices corresponding to light arrival points of a transposed matrix of the PSF.

Abstract: Systems and method are provided for managing inventory by determining product prices based on product characteristics. One method includes, based on a condition of the product and an age of the product, determining a new price of a returned product and modifying the database to assign the new price to the product identifier. Based on a determination that the product is not a returned product from a customer: calculating an inventory rate associated with the product; based on the calculated inventory rate, determining a new price of the product; and modifying the database to assign, to the product identifier, the inventory rate and the new price.

Abstract: Provided herein is an apparatus for displaying a forward blind spot situation. The apparatus for displaying a forward blind spot situation includes a front camera capturing a blind spot of a driver, a display device displaying image information on the blind spot of the driver captured through the front camera, and a processor controlling the image information on the blind spot of the driver captured through the front camera to be seamlessly output at a position of a driver's gaze.

Abstract: Disclosed is a miniaturized battery module in which a space except for a space of a battery cell is minimized and the number of components is reduced. The miniaturized battery module includes a cell assembly configured by assembling a plurality of battery cells, an upper frame inserted into an outer upper surface of the cell assembly, a lower frame inserted into an outer lower surface of the cell assembly and fastened to the upper frame, and first and second endplates fastened to two opposite ends of the cell assembly and configured to fix the plurality of battery cells. In this case, at least two or more of the plurality of the battery cells are arranged side by side, and the upper frame and the lower frame are fastened by welding.

Abstract: A hot water system for a bidet having a housing is provided. The hot water system includes: a water inlet pipe connected to a faucet; a flow path guide tank located at a lower portion in the housing so that water introduced into the water inlet pipe flows; a sheath heater provided in the housing and configured to heat water discharged from the flow path guide tank; and a water outlet pipe configured to supply water heated by the sheath heater to the outside. The flow path guide tank has a flow path guide hole formed through in an upward direction so that water introduced into the water inlet pipe flows into an upper portion inside the housing and exchanges heat with the sheath heater.

Abstract: The present invention provides a novel therapeutic agent for treating inflammatory diseases which reduces the pro-inflammatory response and increases M2 macrophages according to the repolarization of macrophages, thereby exhibiting fewer side effects and excellent anti-inflammatory effects even at low doses compared to conventional steroid anti-inflammatory agent.

Abstract: An induction heating apparatus includes a coil driver configured to have a plurality of selectable resonant frequencies, and a controller configured to control the coil driver. The coil driver drives a coil according to a control signal from the controller.

Abstract: A wireless charging power supply system during operation of electric vehicles and industrial equipment while operating is described. The withstand voltage problem on the power supply line was solved by the capacitor provided in the inverter, and the power supply line and common line arrangement. This makes it possible to extend the wireless power supply line and the economical problem of the wireless charging system is greatly improved. In the prior art, compatibility was maintained with various wireless charging pick-up pads installed in the vehicle by using a plurality of inverters. In this system, compatibility is satisfied at a lower cost by utilizing the relay present in the inverter. The EMI of the power supply line is reduced by maximizing the magnetic field cancellation effect by using the structure of the common line and the shielding tube.

Abstract: A mobile communication terminal and a method for outputting a short message thereof are provided. The mobile communication terminal according to an exemplary embodiment of the present invention includes a short message interpretation unit which extracts a phone number of a sender from a header of a short message, a short message processing unit which obtains an image mapped to the extracted phone number and generates a screen on which the image is combined with the text of the short message, a mapping unit which maps the image to the phone number of the sender, a storage unit which stores the phone number of the sender and the image and an output unit which outputs the screen.