Results 11 to 20 of about 145,454 (292)

Selection of portable hard disk drive based upon weighted aggregated sum product assessment method: A case of Indian market

open access: yesMeasurement + Control, 2020
The multicriteria decision-making methodology is utilized to assess different portable hard disk drive alternatives, according to the purchaser/retailer/wholesaler liking with respect to various attributes.
Raman Kumar   +4 more
doaj   +2 more sources

Random-forest-based failure prediction for hard disk drives

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Failure prediction for hard disk drives is a typical and effective approach to improve the reliability of storage systems. In a large-scale data center environment, the various brands and models of drives serve diverse applications with different input ...
Jing Shen   +3 more
doaj   +2 more sources

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

Utilization of CD and DVD Pick-Up Heads for Scratch Inspection of Magnetic Disk in Dynamic State Using Microcontroller

open access: yesApplied Sciences, 2020
A non-destructive technique to inspect a scratch on all magnetic disks in the beginning process of hard disk drive (HDD) manufacturing by using CD and DVD pick-up heads as the detector is proposed.
Achinee Polsawat   +2 more
doaj   +1 more source

Hard-disk drives [PDF]

open access: yesCommunications of the ACM, 2009
New drive technologies and increased capacities create new categories of failure modes that will influence system designs.
openaire   +1 more source

Video recorder memory calculation of video surveillance system

open access: yesТехнічна інженерія, 2021
This article analyzes modern video compression formats, presents and substantiates the algorithm for calculating the required volume of the DVR to allow storage of video surveillance systems for the required period, provides a procedure for selecting a ...
O.F. , T.M. , O.V. , V.V. , D.S. , S.M.
doaj   +1 more source

Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In conventional control systems in hard disk drives, it is difficult to compensate for disturbances above the primary mechanical resonance. In this paper, a design method that uses a virtual resonant mode in head-positioning systems of hard disk drives ...
Takenori ATSUMI
doaj   +1 more source

A Case for Redundant Arrays of Hybrid Disks (RAHD) [PDF]

open access: yes, 2008
Hybrid Hard Disk Drive was originally concepted by Samsung, which incorporates a Flash memory in a magnetic disk. The combined ultra-high-density benefits of magnetic storage and the low-power and fast read access of NAND technology inspires us to ...
Deng, D.   +8 more
core   +1 more source

Stable Peak Filtering Method to Reject High Frequency Disturbance in Hard Disk Drives

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
In this paper, novel solutions are provided for designing the disturbance filter when there are significant plant dynamics within the bandwidth of the filter.
Fan HONG, Chunling DU
doaj   +1 more source

Controller Switching Strategy for Constrained Systems and Its Application to Hard Disk Drives

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
We propose a switching control strategy for systems with state and control constraints. Prior studies have proven that switching control strategies have the ability to meet performance objectives, such as fast response and good disturbance rejections ...
Atsushi OKUYAMA, Takashi YAMAGUCHI
doaj   +1 more source

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