Abstract: Disclosed herein is a remote monitoring apparatus for an air valve for semiconductor equipment. The remote monitoring apparatus includes: a communication network formed by selecting one or more from the Internet, a Bluetooth network, a Wi-Fi network, and an Internet of Things (IoT) network and then combining them, and configured to connect a device, a server, and a terminal; an inspection device installed on one side of an air valve for semiconductor equipment; a management server connected to the communication network, and configured to collectively manage failure diagnosis and monitoring information; and an operator terminal configured to output the failure diagnosis and monitoring information.

Abstract: A device for inspecting a semiconductor equipment air valve for leaking is provided. The device includes: an air valve configured to generate a high vacuum state; an inspection device body installed on a first side of the air valve; a sensor part installed on a first side of the inspection device body to sense audio data, pressure data, video data, displacement data, infrared data, and ultrasound data of the air valve; an MCU installed inside the inspection device body; a screen output part installed outside the inspection device body to output image data; and a voice output part installed on the first side of the inspection device body to output voice data.

Abstract: Disclosed is a segmented magnet which may adjust the application direction of a heavy rare earth element for grain boundary diffusion depending on the magnetization direction of the segmented magnet so as to simplify the manufacturing process of the segmented magnet while reducing eddy current loss, and a method for manufacturing the same. The method includes preparing a plurality of permanent magnet parent bodies having a constant magnetization direction, diffusing a diffusion material into the prepared permanent magnet parent bodies via a pair of planes thereof opposite each other and parallel to the magnetization direction along grain boundaries so as to form a pair of diffusing surfaces, preparing a permanent magnet assembly by stacking the permanent magnet parent bodies in a line such that the diffusing surfaces thereof face each other, and segmenting the permanent magnet assembly into a plurality of pieces along planes perpendicular to the magnetization direction.

Abstract: The present invention relates to a stent with a pigtail structure used for connection between organs of different kinds where a through hole is formed on each of the organs of different kinds and portions around the through holes are connected to each other, the stent comprising: a stent body where both end parts are arranged across the through holes formed on the organs of different kinds and a connecting passage which connects the two organs of different kinds is formed; and a one-side wound end part and an other-side wound end part which are formed in a pigtail shape at both end parts of the stent body to be caught and fixed to the through holes, such that portions of the organs of different kinds around the through holes are in close contact with each other, wherein the stent body, the one-side wound end part, and the other-side wound end part are provided as an integral body having a mesh structure made of woven wire and comprising a cover film which covers the woven wire for sealing of the connecting pa

Abstract: Provided is an apparatus for separating biological materials. The apparatus includes a substrate on which a water-bearing medium is arranged, biological materials present in the water-bearing medium, an observation tool for observing the biological materials, an extraction tool for separating the biological materials from the substrate, a water supply unit for replenishing water removed from the water-bearing medium by evaporation, and a humidity control unit for measuring the temperature or humidity in a space defined between the substrate and the water supply unit.

Abstract: The present invention provides a composition for a soft urethane foam to prepare a soft urethane foam, comprising a polyol, and a foamed soft urethane foam using the same, wherein the polyol is any one selected from among a hydrocarbon polyol, a vegetable oil, and a vegetable-oil-derived dimer acid, or a mixture of a hydrocarbon polyol with any one selected from among a vegetable oil and a vegetable-oil-derived dimer acid. The present invention provides an impregnation material for impregnation of a cosmetic composition, which can control the polarity of the impregnation material for impregnating a hydrophilic cosmetic composition, and an impregnation-use urethane foam composition for preparing the same.

Abstract: The present invention provides a composition for a soft urethane foam to prepare a soft urethane foam, comprising a polyol, and a foamed soft urethane foam using the same, wherein the polyol is any one selected from among a hydrocarbon polyol, a vegetable oil, and a vegetable-oil-derived dimer acid, or a mixture of a hydrocarbon polyol with any one selected from among a vegetable oil and a vegetable-oil-derived dimer acid. The present invention provides an impregnation material for impregnation of a cosmetic composition, which can control the polarity of the impregnation material for impregnating a hydrophilic cosmetic composition, and an impregnation-use urethane foam composition for preparing the same.

Abstract: Technologies are described herein for rewriting the initial sectors of a data track on a recording medium of a storage device in order to reduce the occurrence of initial sector weak writes and/or adjacent track erasure. Upon receiving a write command at the storage device, a plurality of sequential segments on the recording media targeted by the write command is determined. The plurality of sequential segments is written to the recording medium, and then data is rewritten to an initial segment of the plurality of sequential segments.

Abstract: The present invention provides a medical stent with a stopper which can be inserted into lumens of a human such as the duodenum, the colon, the biliary tract, and the esophagus, and that is useful for lesions due to stricture caused by benign and malignant tumors.

Abstract: A method of writing data using a coercivity distribution of a data storage medium, including mapping the coercivity distribution of the data storage medium including a plurality of write spots in which data can be written, measuring a current ambient temperature, and if the ambient temperature is higher than a room temperature, selecting a write spot having a relatively large coercivity to receive write data, and if the ambient temperature is lower than the room temperature, selecting a write spot having a relatively small coercivity to receive the write data.

Abstract: An apparatus and method of setting up a bit error rate (BER) criterion and an apparatus and method of performing a burn-in test using the method of setting up the BER criterion. The method of setting the BER criterion includes measuring temperatures of hard disc drives (HDDs), and changing a BER criterion in which, if the measured temperature of the HDD is higher than an optimum temperature for a burn-in test, a new BER criterion having a value greater than the BER criterion of the optimum temperature is set up, and, if the measured temperature of the HDD is lower than an optimum temperature for a burn-in test, a new BER criterion having a value less than the BER criterion of the optimum temperature is set up.

Abstract: A method to control an FOD (flying on demand) voltage of a hard disk drive apparatus using a TA (thermal asperity) signal includes providing at least one protrusion having a predetermined height on a disk, moving a magnetic head to a position of the protrusion, and applying an FOD voltage for a test to the magnetic head, detecting the TA signal generated when the magnetic head touches the protrusion by the applied FOD voltage for a test, and determining the maximum FOD voltage, that is, the maximum FOD voltage applied to the magnetic head, based on the detected TA signal and determining an FOD voltage to control the FH (flying height) of the magnetic head based on the maximum FOD voltage.

Abstract: A flying height of a slider of a head assembly is measured by rotating a disk having at least one protrusion protruding higher than a minimum flying height of the head assembly subject to measurement, and cutting an upper end portion of the protrusion with the slider that is floating with respect to the disk. The cut protrusion is measured to determine the flying height of the slider of the head assembly.

Abstract: An apparatus and method of setting up a bit error rate (BER) criterion and an apparatus and method of performing a burn-in test using the method of setting up the BER criterion. The method of setting the BER criterion includes measuring temperatures of hard disc drives (HDDs), and changing a BER criterion in which, if the measured temperature of the HDD is higher than an optimum temperature for a burn-in test, a new BER criterion having a value greater than the BER criterion of the optimum temperature is set up, and, if the measured temperature of the HDD is lower than an optimum temperature for a burn-in test, a new BER criterion having a value less than the BER criterion of the optimum temperature is set up.

Abstract: A method to control an FOD (flying on demand) voltage of a hard disk drive apparatus using a TA (thermal asperity) signal includes providing at least one protrusion having a predetermined height on a disk, moving a magnetic head to a position of the protrusion, and applying an FOD voltage for a test to the magnetic head, detecting the TA signal generated when the magnetic head touches the protrusion by the applied FOD voltage for a test, and determining the maximum FOD voltage, that is, the maximum FOD voltage applied to the magnetic head, based on the detected TA signal and determining an FOD voltage to control the FH (flying height) of the magnetic head based on the maximum FOD voltage.

Abstract: A perpendicular magnetic recording medium includes a substrate forming a base, a magnetic layer deposited on a surface of the substrate in a direction along a thickness of the substrate, and an overcoat deposited on the magnetic layer in the direction along the thickness of the substrate to protect the magnetic layer, and having a texture formed partially indented from a surface and textured to have a predetermined surface roughness. The hard disk drive apparatus includes a magnetic head and the perpendicular magnetic recording medium where data is recorded and stored using the magnetic head.

Abstract: A method of writing data using a coercivity distribution of a data storage medium, including mapping the coercivity distribution of the data storage medium including a plurality of write spots in which data can be written, measuring a current ambient temperature, and if the ambient temperature is higher than a room temperature, selecting a write spot having a relatively large coercivity to receive write data, and if the ambient temperature is lower than the room temperature, selecting a write spot having a relatively small coercivity to receive the write data.

Abstract: A head assembly includes a suspension coupled to an end portion of an actuator arm located on a base to rotate around a pivot shaft, a head slider installed at the suspension and having a head to record and/or read information on and/or from a recording medium, and a variable device located between the suspension and the head slider, wherein one side of the variable device is coupled to the suspension to adjust a flying height of the head slider by adjusting inclination of the head slider with respect to the suspension. The head assembly can be applied to a magnetic head assembly by using a magnetic head and a magnetic disk as the head and the recording medium, respectively. Thus, since the variable device can be fixedly coupled to the suspension during the assembly process of the head assembly or the manufacture of the suspension, the process of manufacture is considerably simplified compared to the conventional magnetic head assembly.

Abstract: A hard disk drive having an air flow accelerator for improving taking-off and landing of a slider on a surface of a disk. The hard disk drive includes a spindle motor and a disk for storing data which is rotated by the spindle motor. The slider includes a magnetic head for recording and reproducing data and is mounted on a pivotable actuator. The air flow accelerator is provided within an inner circumference of the disk and rotates together with the disk. The device may be formed integral with a disk clamp, the spindle motor, a disk spacer, the disk, or as a separate member. At least one blade extends in a radial direction from a center of rotation of the disk with the blade being curved in a direction opposite a rotation direction of the disk. The accelerated air flow restricts damage of the magnetic head and the disk.

Abstract: A data recording disk, and a hard disk drive provided with the data recording disk, the data recording disk including a clamping zone and a data zone, wherein at least a portion of a surface of the clamping zone varies in height from a surface of the data zone.