Abstract: According to one embodiment, a magnetic disk device includes a first magnetic disk comprising a first recording surface accessed by using a first actuator system and second magnetic disk comprising a second recording surface accessed by using a second actuator system. The first recording surface includes a first area to which a logical address is mapped and a cache area. The second recording surface includes a second area to which a logical address is mapped and a cache area. When receiving first data whose final write destination is the first recording surface from a host, the controller writes the first data to a buffer memory. When the first event occurs, after the first data has been written to the buffer memory and before the first data has been written to the final write destination, the controller writes the first data in the buffer memory to the second area.

Abstract: An optical pulse tester is for testing characteristics of an optical fiber on the basis of return light obtained by causing an optical pulse to be incident on the optical fiber. The optical pulse tester includes a plurality of light source elements configured to emit optical pulses of different wavelength bands, a plurality of light receiving elements provided to correspond to the plurality of light source elements, a first spatial optical system in which the optical pulses emitted from the plurality of light source elements are spatially combined by wavelength to be incident on the optical fiber, and a second spatial optical system in which return light from the optical fiber is spatially separated by wavelength to be incident on the plurality of light receiving elements.

Abstract: An optical pulse tester includes an optical divider configured to cause a return light to divide into first divided light and second divided light, a first optical receiver configured to receive the first divided light and output a first optical receiver signal, a second optical receiver configured to receive the second divided light and output a second optical receiver signal, and a signal processor configured to obtain a waveform indicating an intensity distribution of the return light in a longitudinal direction of the optical fiber by performing level conversion of the first optical receiver signal and the second optical receiver signal on the basis of a divided ratio of the optical divider and optical receiver sensitivities of the first optical receiver and the second optical receiver and synthesizing the first optical receiver signal and the second optical receiver signal which have been subjected to the level conversion.

Abstract: In a magnetic recording drive that includes a shingled magnetic recording (SMR) region and a conventional magnetic recording (CMR) region, the quantity of validation data that is stored by the CMR region is reduced. In the magnetic recording drive, verification data stored in the CMR region is invalidated under certain circumstances, including when an SMR band is closed, when an SMR band is indicated by a host to be reused, when an SMR band is indicated to be finished, and when a last data track of an SMR has data stored therein.

Abstract: A sheet drying device and method, and a box making machine, wherein provided are: a heating lamp (111) that is disposed facing a printing face of a cardboard sheet (S); a voltage adjusting unit (122) that adjusts the voltage of electrical power supplied to the heating lamp (111); a voltage setting unit (121) that sets the working voltage of the heating lamp (111) by increasing or decreasing a reference voltage according to the thickness of a water-based paint on the cardboard sheet (S), where the reference voltage is a voltage that is less than the rated voltage of the heating lamp (111) by a preset prescribed value; and a controlling device (101) that changes the voltage of the heating lamp (111) to the working voltage set by the voltage setting unit (121) using the voltage adjusting unit (122).

Abstract: A vibration suppression system for a loading vehicle includes: a sensor configured to detect a parameter indicating acceleration along a vertical direction of a load handling apparatus or of a vehicle main body of the loading vehicle; a vibration control force generating apparatus configured to apply a vibration control force for suppressing vibration of the loading vehicle; and a controller configured to generate a feedback command to be issued to the vibration control force generating apparatus based on a detection value of the sensor.

Abstract: A rubber material recovery method according to at least one embodiment of the present invention comprises a step of supplying an oil product containing a softener to a rubber material, wherein an absolute difference between a solubility parameter of the softener and a solubility parameter of the rubber material is 1.7 or less.

Abstract: A machine according to at least one embodiment of the present invention comprises a rubber material to be supplied with an oil product containing a softener, wherein an absolute difference between a solubility parameter of the softener and a solubility parameter of the rubber material is 1.7 or less. The machine having a communication portion connecting the rubber material and an outside of the machine, and is configured to supply the oil product from a first end of the communication portion to a second end of the communication portion.

Abstract: A production schedule change system includes: a production schedule acquisition part configured to acquire a production schedule of a product in a case where the product is produced at an initial condition of production speed; a time information acquisition part configured to acquire time information indicating a scheduled collection time; and a schedule candidate calculation part configured to: change the production speed from the initial condition within a range defined by a quality standard of the product, based on the time information; and calculates at least one production schedule candidate satisfying a first condition that a time difference between a deliverable time of the product and the scheduled collection time is in an acceptable range and at least one of a second condition that the deliverable time is earlier than the scheduled collection time or a third condition that the scheduled collection time is earlier than the deliverable time.

Abstract: A system for diagnosing performance degradation of a machine element includes an AE sensor that generates an AE waveform signal; a vibration sensor that generates an acceleration signal; a signal processing unit including an AE signal processing system that performs predetermined signal processing on the plurality of AE waveform signals, a vibration signal processing system that performs predetermined signal processing on the acceleration signal, and a switching parameter generating section that generates a predetermined numeric parameter to switch a measuring mode from the AE method to the vibration method; and controlling unit that selects a result of the processing in performed by the AE signal processing system at the initial stage and selects, after the numeric parameter successively turns from increasing to decreasing, a result of the processing by the vibration signal processing system.

Abstract: A sheet drying device and method, and a box making machine, wherein provided are: a heating lamp (111) that is disposed facing a printing face of a cardboard sheet (S); a voltage adjusting unit (122) that adjusts the voltage of electrical power supplied to the heating lamp (111); a voltage setting unit (121) that sets the working voltage of the heating lamp (111) by increasing or decreasing a reference voltage according to the thickness of a water-based paint on the cardboard sheet (S), where the reference voltage is a voltage that is less than the rated voltage of the heating lamp (111) by a preset prescribed value; and a controlling device (101) that changes the voltage of the heating lamp (111) to the working voltage set by the voltage setting unit (121) using the voltage adjusting unit (122).

Abstract: A system for diagnosing performance degradation of a machine element includes an AE sensor that generates an AE waveform signal; a vibration sensor that generates an acceleration signal; a signal processing unit including an AE signal processing system that performs predetermined signal processing on the plurality of AE waveform signals, a vibration signal processing system that performs predetermined signal processing on the acceleration signal, and a switching parameter generating section that generates a predetermined numeric parameter to switch a measuring mode from the AE method to the vibration method; and controlling unit that selects a result of the processing in performed by the AE signal processing system at the initial stage and selects, after the numeric parameter successively turns from increasing to decreasing, a result of the processing by the vibration signal processing system.

Abstract: According to one embodiment, first data is written into a first storage area with a shingled write recording scheme. A verification process is performed. The verification process includes reading second data and checking whether or not a read error has occurred. The second data is partial data of the first data written into the first storage area and is data written into a sector of the first track that is adjacent to a sector of the second track for which writing has completed.

Abstract: According to one embodiment, a magnetic disk drive including a disk including a plurality of track groups each including a first write track and a second write track partially overlapping the first write track, and a processor configured to count a write count corresponding to write processing of adjacent track groups for each of the plurality of track groups, and calculate an estimated time at which the write count reaches a particular value and, if a track group in which the estimated time is approximate is detected, read data of the approximate track group, and execute rewrite processing of writing the data to the track group in which the estimated time is approximate, at a time earlier than the estimated time.

Abstract: An information recording device includes a recording medium with a plurality of data tracks and a controller that stores management information regarding data recorded in a group of adjacent data tracks, the recorded data including first data recorded in a first data track that is partially overwritten by second data subsequently recorded in a second data track that is adjacent to the first data track. The controller recovers management data of the recorded data based on whether or not a sector in the first data track that is adjacent to a sector in the second data track can be read by offset read processing when the sector in the second data track cannot be read by normal read processing.

Abstract: An information recording device includes a recording medium with a plurality of data tracks and a controller that stores management information regarding data recorded in a group of adjacent data tracks, the recorded data including first data recorded in a first data track that is partially overwritten by second data subsequently recorded in a second data track that is adjacent to the first data track. The controller recovers management data of the recorded data based on whether or not a sector in the first data track that is adjacent to a sector in the second data track can be read by offset read processing when the sector in the second data track cannot be read by normal read processing.

Abstract: In a printing press, it is configured such that a newspaper web offset printing press is composed by a feeder device, a printing device, a guiding device, a turn bar device, and a folding unit; as a guiding device, there are provided an upstream side guide roller and a downstream side guide roller which are disposed with a predetermined interval along a transportation direction of a web for guiding transportation of the web; and there is disposed an ink-jet printer for performing digital printing on the web guided between the guide rollers. By setting diameters of the upstream side guide roller and the downstream side guide roller to different values, vibration of the print medium which is transported while being guided by the guide rollers is suppressed, and the print quality is thereby improved.

Abstract: Disclosed herein is an imaging apparatus including: an apparatus body in which a heat radiating part is disposed; and a heat dissipating section formed at an upper portion of the apparatus body, wherein the heat dissipating section has a recess provided in an upper portion of the apparatus body, and a closing plate so mounted as to close the recess, a space is formed between the recess and the closing plate, the recess is formed with a vent hole through which the inside of the apparatus body and the space communicate with each other, the closing plate is provided with a heat dissipating hole through which the space communicates with the exterior, and the vent hole and the heat dissipating hole are positionally deviated from each other.

Abstract: Each of an intermediate transfer blanket and an intermediate transfer body for electrophotographic printing uses liquid toner for transferring the liquid toner in which toner particles formed by a thermoplastic material and a pigment are distributed and mixed in a petroleum solvent in the liquid toner, and a conducting layer that is formed by urethane rubber is provided on a front surface of a blanket, thereby realizing high-quality electrophotographic printing.

Abstract: In a printing press, it is configured such that a newspaper web offset printing press is composed by a feeder device, a printing device, a guiding device, a turn bar device, and a folding unit; as a guiding device, there are provided an upstream side guide roller and a downstream side guide roller which are disposed with a predetermined interval along a transportation direction of a web for guiding transportation of the web; and there is disposed an ink-jet printer for performing digital printing on the web guided between the guide rollers. By setting diameters of the upstream side guide roller and the downstream side guide roller to different values, vibration of the print medium which is transported while being guided by the guide rollers is suppressed, and the print quality is thereby improved.