Abstract: A semiconductor device includes a lower substrate, a memory cell structure including a wordline on the lower substrate, a bitline disposed on the lower substrate and intersecting the wordline, and a cell capacitor connected to the lower substrate, an upper substrate having a back side adjacent to the lower substrate and a front side opposite to the back side, a circuit element disposed on the front side of the upper substrate and overlapping the memory cell structure in a vertical direction, and a through via penetrating the upper substrate and electrically connecting the memory cell structure and the circuit element with each other.

Abstract: A nano spintronic device for using the spin current of a ferromagnetic material and the spin current of a heavy metal channel. The device includes a lower channel layer, a free layer, a pinned layer, an insulating film layer, and an upper channel layer. When current flows upon application of power, electrons are divided into +y-polarized spins and ?y-polarized spins in the lower channel layer, thereby generating torque in the free layer. The torque switches the magnetization direction of the free layer to an +y-axis direction or an ?y-axis direction so that the free layer stores magnetization information according to the magnetization direction. When current flows in the upper channel layer, the current flows into the pinned layer so that electrons in the pinned layer are divided into +y-polarized spins and ?y-polarized spins. The insulating layer insulates the free layer and the pinned layer from each other.

Abstract: A converter comprises: a housing comprising an internal space; a printed circuit board disposed inside the internal space; a first electronic component disposed on the upper surface of the printed circuit board; a second electronic component disposed on the lower surface of the printed circuit board; and a heat dissipation space disposed inside the housing, wherein the first electronic component is disposed so as to overlap the heat dissipation space in a first direction, and the second electronic component is disposed so as to overlap the heat dissipation space in a second direction perpendicular to the first direction.

Abstract: An embodiment heat exchanger includes a first flow path through which a refrigerant discharged from a condenser and drawn into an expansion valve flows and a second flow path through which the refrigerant discharged from a vapor-liquid separator and drawn into a compressor flows, wherein the heat exchanger is configured to perform a heat exchange between the refrigerant flowing through the first flow path and the refrigerant flowing through the second flow path.

Abstract: Disclosed is a surfactant composition in which at least one of surface tension and interfacial tension is superior, the composition including a fluorinated surfactant and a phospholipid-based surfactant, and optionally further including a sulfosuccinate-based surfactant.

Abstract: The present invention provides an electrode assembly in which a negative electrode coated with a negative electrode active material on a surface of a negative electrode collector, a separator, and a positive electrode coated with a positive electrode active material on a surface of a positive electrode collector are repeatedly laminated, the electrode assembly comprising: monocells in which the positive electrode, the separator, the negative electrode, and the separator are laminated, wherein at least two or more monocells are laminated, wherein, in any one of the monocells, an expansion part extending lengthily to one side is formed on the separators, and the expansion part of the separator surrounds the monocells laminated to be disposed at the outermost layers to fix the laminated monocells.

Abstract: An antenna structure may include a transmission antenna unit group, and a reception antenna unit group spaced apart from the transmission antenna unit group in a first direction. The transmission antenna unit group includes a first transmission antenna unit and a second transmission antenna unit having a length in a second direction greater than a length of the first transmission antenna unit in the second direction, the second direction being perpendicular to the first direction. The reception antenna unit group includes a plurality of reception antenna units spaced apart from the first transmission antenna unit in the first direction and being arranged in a single row.

Abstract: An antenna structure may include a transmission antenna unit group, and a reception antenna unit group spaced apart from the transmission antenna unit group in a first direction. The transmission antenna unit group includes a first transmission antenna unit, and a second transmission antenna unit having a length in a second direction greater than a length of the first transmission antenna unit in the second direction, the second direction being perpendicular to the first direction. The reception antenna unit group includes a first reception antenna unit spaced apart from the first transmission antenna unit in the first direction and including a first reception radiator, and a second reception antenna unit including a second reception radiator spaced apart the first reception radiator in the second direction.

Abstract: A circuit board includes a core layer, a first via structure penetrating the core layer, a circuit wiring disposed on one surface of the core layer and including a head portion in contact with the first via structure, a connection portion extending from the head portion and an extension portion electrically connected to the head portion through the connection portion, and a first ground pattern disposed on the one surface of the core layer and disposed around the circuit wiring to be spaced apart from the circuit wiring. A shortest distance between the extension portion and the first ground pattern is greater than a shortest distance between the head portion and the first ground pattern.

Abstract: The present invention provides an electrode assembly in which a negative electrode coated with a negative electrode active material on a surface of a negative electrode collector, a separator, and a positive electrode coated with a positive electrode active material on a surface of a positive electrode collector are repeatedly laminated, the electrode assembly comprising: monocells in which the positive electrode, the separator, the negative electrode, and the separator are laminated, wherein at least two or more monocells are laminated, wherein, in any one of the monocells, an expansion part extending lengthily to one side is formed on the separators, and the expansion part of the separator surrounds the monocells laminated to be disposed at the outermost layers to fix the laminated monocells.

Abstract: A polyesterimide resin composition, a polyesterimide resin layer, a flexible metal foil laminate, and methods of preparing the polyesterimide resin composition, the polyesterimide resin layer, and the flexible metal foil laminate are provided. The polyesterimide resin composition includes a compound having a structural unit represented by Chemical Formula 1: In Chemical Formula 1, m and n are mole fractions, and “m+n=1” “0.2?m?0.8” and “0.2?n?0.8” are satisfied. Ar1 and Ar2 are the same as or different from each other and are each independently a tetravalent organic group having at least one aromatic ring. R1, R2, and R4 to R6 each independently include at least one of —H, —F, —CH3, —OCH3, —CF3, and —OCF3. R3 is an ester group and includes —COO— or —OOC—.

Abstract: A method and device for a wireless communication system are discussed. The method can be performed by a wireless device, and can include generating a pseudo-random sequence, generating a signal sequence based on the pseudo-random sequence, and transmitting the signal sequence. The pseudo-random sequence is initialized with an initial value based on a cell identifier of a cell.

Abstract: A method and device for transmitting a reference signal are discussed. The method can be performed by a wireless device, and can include generating a pseudo-random sequence, generating a reference signal based on the pseudo-random sequence, and transmitting the reference signal sequence. The device can include a signal generator coupled with a data processor and configured to generate a pseudo-random sequence and a reference signal based on the pseudo-random sequence. The device can further include a transmit circuitry configured to transmit the reference signal sequence.

Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.

Abstract: A noise cancellation method including generating a first voice signal by canceling a first portion of noise included in an input voice signal using a first network, the first network being a trained u-net structure, and the first portion of the noise being in a time domain, applying a first window to the first voice signal, performing a fast Fourier transform on the first windowed voice signal to acquire a magnitude signal and a phase signal, acquiring a mask using a second network based on the magnitude signal, the second network being another trained u-net structure, applying the mask to the magnitude signal, generating a second voice signal by canceling a second portion of the noise by performing an inverse fast Fourier transform on the first windowed voice signal based on the masked magnitude signal and the phase signal, and applying a second window to the second voice signal.

Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.

Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.

Abstract: A method of a user equipment (UE) operating in a wireless communication system using orthogonal subcarriers, the method including generating, by the UE, Orthogonal Frequency Division Multiplexing (OFDM)-based symbols, wherein each OFDM-based symbol includes a cyclic prefix (CP) and a data part, transmitting, by the UE, a first subframe including N OFDM-based symbols, wherein N is an integer and transmitting, by the UE, a second subframe including N OFDM-based symbols, following the first subframe, wherein, when the first subframe and the second subframe are overlapped based on a timing adjustment command received from a base station, the first subframe is transmitted completely while the second subframe is transmitted partially without an overlapped part of the second subframe.

Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.

Abstract: A method of transmitting uplink signals is disclosed. The method includes transmitting, by a user equipment, periodic control information on a Physical Uplink Control Channel (PUCCH) at a predetermined period, dropping the periodic control information and multiplexing uplink signals except the periodic control information when the user equipment is operating in subframe bundling transmission mode where the uplink signals are transmitted in a plurality of consecutive subframes, and transmitting the multiplexed uplink signals on a Physical Uplink Shared Channel (PUSCH).