Results 1 to 10 of about 98,138 (268)

A self-monitoring analysis and reporting technology dataset of 147,496 hard disks [PDF]

open access: yesScientific Data
In order to study hard disk failure prediction,this paper introduces SMART-Z, a dataset comprising 147,496 pieces of hard disk SMART data periodically collected by a large distributed video data center in China in the enterprise application environment ...
Shuting Wei   +3 more
doaj   +2 more sources

Feedforward control with sampled-data polynomial based on triangle hold for track seek of hard disk drive

open access: goldJournal of Advanced Mechanical Design, Systems, and Manufacturing
This research proposes feedforward control techniques aimed at reducing the seek time in hard disk drives (HDDs). These techniques utilize a sampled-data polynomial approach based on a triangular approximation first-order hold (triangle hold) with a non ...
Kazuho IGARASHI   +3 more
doaj   +3 more sources

Running-In Effects of Lubricated Polyether Ether Ketone on Steel for Different Spreading and Sorption Tendencies

open access: yesLubricants, 2023
Polyether ether ketone is a highly resilient thermoplastic that can withstand as an unfilled or filled polymer tribological high loads in high-temperature applications, as it has a high glass and melting temperature.
Christof Koplin   +2 more
doaj   +1 more source

Modeling and Control of a Dual Stage Actuator Hard Disk Drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
A data-based approach is presented for modeling and controller design of a dual-stage servo actuator in a hard disk drive. The servo actuator in this hard disk drive consists of a conventional voice coil motor and a piezo-electrically actuated suspension.
Uwe BOETTCHER   +2 more
doaj   +1 more source

Improvement of Convergence for Adaptive Feed-Forward Cancellation Using Variable Gains in a Head Positioning System of Hard Disk Drives

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2013
We present an enhanced adaptive feed-forward cancellation (AFC) with variable gains to be used in the head positioning control system of a hard disk drive (HDD).
Shota YABUI   +3 more
doaj   +1 more source

Computer hardware for radiologists: Part 2

open access: yesIndian Journal of Radiology and Imaging, 2010
Computers are an integral part of modern radiology equipment. In the first half of this two-part article, we dwelt upon some fundamental concepts regarding computer hardware, covering components like motherboard, central processing unit (CPU), chipset ...
Indrajit I, Alam A
doaj   +3 more sources

Comparative Analysis among Single-Stage, Dual-Stage, and Triple-Stage Actuator Systems Applied to a Hard Disk Drive Servo System

open access: yesActuators, 2019
In modern times, the design and optimization of different actuator systems for controlling a high-precision position control system represent a popular interdisciplinary research area.
Alamgir Hossain, Md. Arifur Rahman
doaj   +1 more source

Accurate Runout Measurement for HDD Spinning Motors and Disks

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
As hard disk drive (HDD) areal density increases, its track width becomes smaller and smaller and so is non-repeatable runout. HDD industry needs more accurate and better resolution runout measurements of spinning spindle motors and media platters in ...
Quan JIANG, Chao BI, Song LIN
doaj   +1 more source

Design, fabrication, and testing of silicon microgimbals for super-compact rigid disk drives [PDF]

open access: yes, 1995
This paper documents results related to design optimization, fabrication process refinement, and micron-level static/dynamic testing of silicon micromachined microgimbals that have applications in super-compact computer disk drives as well as many other ...
Hsieh, Wen H.   +4 more
core   +1 more source

Frequency Adaptive Control Technique for Periodic Runout and Wobble Cancellation in Optical Disk Drives [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2006
Periodic disturbance occurs in various applications on the control of the rotational mechanical systems. For optical disk drives, the spirally shaped tracks are usually not perfectly circular and the assembly of the disk and spindle motor is unavoidably ...
Yee-Pien Yang, Jieng-Jang Liu
doaj  

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