Abstract: A method includes switching a vehicle to a 4WD state by connecting a disconnector, maintaining the disconnector in the connected state for a predetermined maintenance time, determining whether a condition to be switched to a 2WD state is satisfied when the predetermined maintenance time period elapses, and disconnecting the disconnector when the condition to be switched to the 2WD state is satisfied.

Abstract: Disclosed is a headrest device for a vehicle. The headrest device may include a stationary headrest portion coupled to a seatback of the vehicle and formed to extend upwards. The stationary headrest portion may be located at a rear of a head of an occupant. The headrest device may include a movable headrest portion coupled to the stationary headrest portion so as to be slidable in a vertical direction, the movable headrest portion may be located in front of the stationary headrest portion. The headrest device may include an actuator including a first side coupled to the fixed part, and a second side coupled to the movable headrest portion. The actuator may be configured to cause the movable headrest portion to slide in the vertical direction.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: A method and an apparatus for encoding/decoding an image according to the present invention may determine a reference area that is a pre-reconstructed area spatially adjacent to a current block on the basis of reference information for specifying the position of a reference area used for predicting a current block and may predict the current block on the basis of the reference area.

Abstract: The present invention relates to use of a compound of chemical formula 1 or a pharmaceutically acceptable salt thereof as a selective agonist of the melanocortin-4-receptor (MC4R).

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.

Abstract: A prelithiated negative electrode, and a secondary battery including a prelithiated electrode, including a negative electrode current collector; and a negative electrode active material layer present on at least one surface of the negative electrode current collector. The negative electrode active material layer includes high-capacity artificial graphite having no carbon coating. The negative electrode active material layer is prelithiated, and the content of lithium intercalated to the prelithiated negative electrode active material layer is 3% to 5% based on the lithium content intercalated when the negative electrode is charged to 100%.

Abstract: A four-lens optical system is provided which is capable of minimizing a total length of an optical system while having a high numerical aperture (NA), and, more particularly, to an optical system including a first lens, a second lens, a third lens, and a fourth lens that are sequentially arranged from an object side to an image side of the four-lens optical system, in which the first lens and the second lens continuously disposed in front of the optical system are each configured to have positive refractive power and in which the first lens is a lens is made of a plastic material, and the fourth lens is a lens made of a glass material.

Abstract: The present invention relates to a lens optical system including a first lens, a second lens, a third lens, a fourth lens, and a fifth lens that are sequentially arranged from an object side to an image side, in which the first lens has positive refractive power and the second lens has negative refractive power.

Abstract: It is disclosed a blood glucose prediction system and method using saliva-based artificial intelligence deep learning technique.

Abstract: The present disclosure relates to a method of reducing a Peak to Average Power Ratio (PAPR) in a communication device, and more particularly, to a method of Crest Factor Reduction (CFR) processing of a signal in order to reduce a PAPR in a communication device such as a repeater. The communication device includes: a first CFR module configured generate a first processed signal by CFR processing an original signal; and a second CFR module configured generate a second processed signal by CFR processing the first processed signal, wherein the first processed signal is generated using a first sampling rate, and the second processed signal is generated using a second sampling rate. According to the disclosure, even a communication device with a low sampling rate may effectively remove a peak component of an input signal.

Abstract: A fingerprint sensor including: a substrate; a light sensing element that includes a sensing electrode disposed on the substrate, a semiconductor layer disposed on the sensing electrode, and a common electrode disposed on the semiconductor layer; a light-blocking conductive layer disposed on the common electrode and including light transmitting holes; and a light guide unit disposed on the light-blocking conductive layer.

Abstract: In some implementations, there is provided a method including receiving a request to provide a local database system with smart data access to a database table stored at a remote database system; executing, by the local database system, a series of one or more fetches, each of which obtains a chunk of the database table stored at the remote database system, such that a corresponding result set for each fetch causes the remote database system to fetch and materialize a corresponding chunk of the database table rather than the database table in its entirety; and reading, by the local database system, a first chunk obtained from the database table stored at the remote database system to form, at least in part, the local copy at the local database system.

Abstract: A display device includes a display area, and a dummy area disposed on one side of the display area, where each of the display area and the dummy area includes a first island pattern and a second island pattern disposed to be spaced apart from each other, and a connection pattern connecting the first island pattern and the second island pattern to each other, and the dummy area includes a dummy common electrode and a common connection electrode electrically connected to the dummy common electrode, which are disposed in each of the first island pattern and the second island pattern thereof.

Abstract: The present invention relates to a switchable filter comprising: a filter unit in which a first filter group for filtering the frequency of a first frequency band is provided on one surface thereof and a second filter group for filtering the frequency of a second frequency band is provided on the other surface thereof on the basis of a center partition wall; and a frequency band switching unit, which moves to be adjacent to or separated from the one surface or the other surface of the filter unit, and thus converts a frequency band into the first frequency band or the second frequency band. Therefore, the deterioration of RF characteristics is prevented and selective conversion between frequency bands is facilitated.

Abstract: A negative electrode active material which includes a core including artificial graphite, and a carbon coating layer disposed on the surface of the core, wherein an edge plane of the negative electrode active material has a specific surface area of 1.0 m2/g to 1.9 m2/g, a negative electrode including the same, and a secondary battery including the negative electrode.

Abstract: An example user terminal apparatus includes a display, a communication apparatus to communicate with an external apparatus, and a processor to, based on information on a possible first toner refill quantity of a plurality of grouped image forming apparatuses provided from the external apparatus through the communication apparatus and a toner quantity of one toner refill apparatus, control the display to display a guide message including information on the time point of toner refill, each of the image forming apparatuses which is a subject of toner refill within the group, and a possible second toner refill quantity of each of the image forming apparatuses at the time point of toner refill.

Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.