Abstract: An apparatus and method for processing a substrate can reduce the concentration of process by-products in a chemical solution.

Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).

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

Abstract: A data sector reassigning technique in a hard disk drive detects of a soft defect in a hard disk drive having a plurality of data sectors and an error correction capability. An error rate is calculated during a data read, and a soft defect is detected by varying the error correction capability according to the calculated error rate. A read error of the detected soft defect is recovered by setting the error correction capability to a maximum level if the read error is not recovered, and a spare sector is reassigned to substitute for a corresponding sector.

Abstract: A technique for reading an information recording field in an information recording disk of a hard disk drive determines whether a read error is generated during a reading of the information recording field. A read gate signal generating timing is adjusted to be different from a normal timing if a read error is generated, and then the information recording field is re-read on the basis of the adjusted read gate signal generating timing.

Abstract: A buffer room logic buffers data transferred between a host and a data storage device with a data write verification capability and stores data on a predetermined recording medium. The buffer room logic has first and second buffer counters, first and second comparators, first and second switches, and a controller. The first and second buffer counters count pulses generated at the end of a data transfer from a host interface and at the end of a data write. The first comparator compares the value of the first buffer counter with the value of a maximum buffer counter indicating a maximum size of a buffer memory, and outputs a pulse to the host interface so as to stop data transfer from the host if the comparison results in a host-no-room condition.