Abstract: A battery pack is advantageous for effective control and maintenance of thermal events. A battery pack according to one aspect of the present disclosure may include a battery module having one or more battery cells; a fire extinguishing tank holding a fire extinguishing liquid, disposed on top of the battery module and having a through hole formed therein; and a cover member installed in the through hole of the fire extinguishing tank and configured to open or close the through hole according to a change in internal pressure of the fire extinguishing tank.

Abstract: Proposed is a method of manufacturing a carbon precursor fiber for a gas diffusion layer having excellent tensile properties (e.g., strength and modulus) by controlling the cross-sectional shape of carbon fiber. The method includes preparing a polyacrylonitrile-based copolymer, preparing spinning products by spinning a spinning solution containing the polyacrylonitrile-based copolymer in a coagulation bath, and obtaining a carbon precursor fiber by drawing the spinning products through heat treatment. The coagulation bath includes an amount of about 60% to 90% by volume of methanol and an amount of about 10% to 40% by volume of dimethylformamide based on the total volume of the coagulation bath.

Abstract: Disclosed is a spilled oil recovery apparatus, wherein the spilled oil recovery apparatus includes a body configured to provide buoyancy so that the spilled oil recovery apparatus floats on a surface of the sea so as to separate oily water including a mixture of seawater and spilled oil into the seawater and the spilled oil, and a spilled oil storage including a storage body connected to the body so as to store recovered spilled oil, and the body includes an oily water inlet configured to form a space so that the oily water on the sea is introduced into the oily water inlet, a spilled oil separator provided to communicate with the oily water inlet and to separate the spilled oil from the introduced oily water, and a temporary spilled oil storage configured to transfer the spilled oil from the spilled oil separator to the spilled oil storage.

Abstract: A stuck-at fault mitigation method for resistive random access memory (ReRAM)-based deep learning accelerators, includes: confirming a distorted output value (Y0) due to a stuck-at fault (SAF) by using a correction data set in a pre-trained deep learning network, by means of ReRAM-based deep learning accelerator hardware; updating an average (?) and a standard deviation (?) of a batch normalization (BN) layer by using the distorted output value (Y0), by means of the ReRAM-based deep learning accelerator hardware; folding the batch normalization (BN) layer in which the average (?) and the standard deviation (?) are updated into a convolution layer or a fully-connected layer, by means of the ReRAM-based deep learning accelerator hardware; and deriving a normal output value (Y1) by using the deep learning network in which the batch normalization (BN) layer is folded, by means of the ReRAM-based deep learning accelerator hardware.

Abstract: A stuck-at fault mitigation method for resistive random access memory (ReRAM)-based deep learning accelerators, includes: confirming a distorted output value (Y0) due to a stuck-at fault (SAF) by using a correction data set in a pre-trained deep learning network, by means of ReRAM-based deep learning accelerator hardware; updating an average (?) and a standard deviation (?) of a batch normalization (BN) layer by using the distorted output value (Y0), by means of the ReRAM-based deep learning accelerator hardware; folding the batch normalization (BN) layer in which the average (?) and the standard deviation (?) are updated into a convolution layer or a fully-connected layer, by means of the ReRAM-based deep learning accelerator hardware; and deriving a normal output value (Y1) by using the deep learning network in which the batch normalization (BN) layer is folded, by means of the ReRAM-based deep learning accelerator hardware.

Abstract: The present inventive concept relates to an oil-water separator for oil-containing residues, including: an outer casing configured to allow residues containing oil and water to be put thereinto; a filter member for separating the oil and the water contained the residues from each other; and a filter support frame coupled to the filter member in such a manner as to be separably seated inside the outer casing, wherein the oil and the water are passed through the filter member at different speeds from each other.

Abstract: The present inventive concept relates to an oil-water separator for oil-containing residues, including: an outer casing configured to allow residues containing oil and water to be put thereinto; a filter member for separating the oil and the water contained the residues from each other; and a filter support frame coupled to the filter member in such a manner as to be separably seated inside the outer casing, wherein the oil and the water are passed through the filter member at different speeds from each other.

Abstract: A photovoltaic power generation apparatus includes a support frame, on which solar cell modules are mounted such that neighboring solar cell modules are spaced apart from each other by a predetermined gap set in a lateral direction. A pair of guide rails is mounted on the support frame in a parallel manner at opposite sides of the solar cell modules. A cleaning unit reciprocates on the guide rails in a horizontal direction to clean upper surfaces of the solar cell modules by rotation. Interference frames are mounted on the support frame in the predetermined gaps or at opposite ends of the solar cell modules. The interference frames are arranged at a height at least equal to or higher than the upper surfaces of the solar cell modules such that the cleaning unit contacts the interference frames while rotating or reciprocating.

Abstract: Disclosed herein is a solar cell module support assembly including a solar cell module and a frame supporting the solar cell module, a drive motor and a power transmission unit transmitting power of the drive motor so as to support frame and change disposition angle and disposition direction of the frame, a motion conversion unit to convert rotating motion of the power transmission unit into rotating motion and vertical motion of the frame, first connection support units connecting upper and lower portions of the rear surface of the frame, and second connection support units connecting the first connection support units to the motion conversion unit.

Abstract: The present invention provides a solar cell module support structure comprising: a first support for a solar cell module to be received and supported; a connecting portion connected to the first support; a main frame connected to the connecting portion so as to support the solar cell module and the first support, having the connection portion mounted thereon and having a mounting groove formed along the length thereof so that the location of the connecting portion can be adjusted along the length thereof; second supports which are provided on the lower side of the main frame, support the main frame from the ground surface, are provided in a plurality, and are arranged in a separated manner from each other; and a connection wire for mutually connecting any one of the second supports with another second support.

Abstract: There is disclosed a photovoltaic power generation device that includes solar cell modules installed for solar cell panels, respectively, with forming a height difference or a gap between each two of the solar cell panels, to change an arrangement angle and direction of the solar cell modules for each season period according to variations of the sun altitude and azimuth.

Abstract: Disclosed herein is a solar cell module support assembly including a solar cell module and a frame supporting the solar cell module, a drive motor and a power transmission unit transmitting power of the drive motor so as to support frame and change disposition angle and disposition direction of the frame, a motion conversion unit to convert rotating motion of the power transmission unit into rotating motion and vertical motion of the frame, first connection support units connecting upper and lower portions of the rear surface of the frame, and second connection support units connecting the first connection support units to the motion conversion unit.

Abstract: The present invention provides a solar cell module support structure comprising: a first support for a solar cell module to be received and supported; a connecting portion connected to the first support; a main frame connected to the connecting portion so as to support the solar cell module and the first support, having the connection portion mounted thereon and having a mounting groove formed along the length thereof so that the location of the connecting portion can be adjusted along the length thereof; second supports which are provided on the lower side of the main frame, support the main frame from the ground surface, are provided in a plurality, and are arranged in a separated manner from each other; and a connection wire for mutually connecting any one of the second supports with another second support.

Abstract: A robotic sunlight tracking apparatus reduces power consumption and improves efficiency of solar photovoltaic power generation. The apparatus includes a solar cell module for converting sunlight into electricity, a rotation shaft connected to a backside of the solar cell module for supporting the solar cell module while rotating, a cylindrical body under the rotation shaft having a cam with a curvature formed as a recess in a surface of the cylindrical body and a motor built therein to rotate in one direction by operation of a timer, and fixing means for fixing the cylindrical body to ground. The rotation shaft includes a cam follower at one side of the cylindrical body placed in the cam for moving following the cam as the motor rotates, and a lift arm connected to the cam follower for moving up/down, adjusting an angle of the solar cell module when the cam follower moves.

Abstract: A dual-plane type flash memory device having a random program function and program operation method thereof. The flash memory device includes a first plane, a second plane, a first X-decoder, and a second X-decoder. The first plane includes first memory blocks sequentially arranged in a row direction. The second plane includes second memory blocks sequentially arranged in a row direction. The first X-decoder activates one of the first memory blocks in response to a first block address signal. The second X-decoder activates one of the second memory blocks in response to a second block address signal. The block activated by the first X-decoder of the first memory block is different from the block activated by the second X-decoder of the second memory blocks. Accordingly, during a program operation, memory blocks of two planes having different block addresses can be selected and programmed. Accordingly, the operational performance of the flash memory device can be enhanced.

Abstract: A flash memory device includes first to nth banks sharing an I/O line, a page buffer unit commonly connected to a bit line of the first to nth banks, for buffering data to be transmitted to the first to nth banks, a first X-decoder connected to a word line of the first banks, for applying a driving voltage to the word line of the first banks, a nth X-decoder connected to a word line of the nth banks, for applying a driving voltage to the word line of the nth banks, a program/erase pump for generating a program voltage/erase voltage applied to the first to nth banks, a first switch unit that switches the program voltage/erase voltage and transmits the voltage to the first banks and the first X-decoder, and a nth switch unit that switches the program voltage/erase voltage and transmits the voltage to the nth banks and the nth X-decoder.

Abstract: A flash memory device and method of controlling a program operation thereof, includes page buffers divided into a predetermined number of groups and a program operation is performed on a group basis.

Abstract: A method for operating a page buffer of a nonvolatile memory device reduces errors while transferring data between latches and shortens a copy-back programming time. The copy-back program is carried out using one among several latch circuits included in the page buffer. The method activates a first latch circuit while inactivates a second latch circuit, in a copy-back programming operation, and activates the first and second latch circuits in programming, reading, and verifying operations.

Abstract: Disclosed herein are a page buffer and a verify method of a flash memory device where the page buffer of a dual register structure includes a switch, which is driven according to a voltage level of an input terminal of a main latch, to output an erase-verify signal, and a switch, which is driven according to a voltage level of an output terminal of the main latch, to output a program-verify signal. Program-verify and erase-verify operations are performed using only the main latch. The disclosed page buffer and verify method can reduce verification time relative to devices using both a cache latch and a main latch.

Abstract: The present invention discloses a page buffer having a dual register, a semiconductor memory device having the same, and a program method thereof. A data transmission path is formed by installing switching units so that a main register as well as a cache register can be directly provided with a data. Therefore, a program operation is performed directly by using the main register in a normal program operation, and by using the cache register in a cache program operation. Accordingly, a process for transmitting the data from the cache register to the main register is omitted in the normal program operation, to reduce a transmission time (about 3 ?s). As a result, the program time can be reduced in the whole program operation. Because the process for transmitting the data from the cache register to the main register is omitted in the normal program operation, the circuit control operation can be simplified.