Results 251 to 260 of about 162,355 (348)

Mechanical Coordination of Intestinal Cell Extrusion by Supracellular 3D Force Patterns

open access: yes
Matejčić M   +8 more
europepmc   +1 more source

T-cell signaling relies on partial CD45-exclusion at sub-micron sized cellular contacts

open access: yes
Kotowski M   +23 more
europepmc   +1 more source

Hundred-Picolitre Droplet on Demand Tape Drive and XES Prototypes for Time-Resolved Serial Crystallography at VMXi, Diamond Light Source

open access: yes
Aller P   +27 more
europepmc   +1 more source

Prediction of track misregistration due to disk flutter in hard disk drive

IEEE Transactions on Magnetics, 2002
Disk runout consists of repeatable runout (RRO) and nonrepeatable runout (NRRO). NRRO is the main cause of track misregistration that prevents a high track density, whereas tracking servo control can compensate for most of RRO. An increase in the disk rotation speed increases the amplitude of disk flutter and, hence, causes head position error.
Young-Bae Chang   +3 more
semanticscholar   +2 more sources

Accurate Track-Count Accessing of Optical Disk Drive : Drive Technology

Japanese Journal of Applied Physics, 1992
In order to create a rapid accessing feature of optical disk drives, the optical head should be positioned as accurately as possible near the target track if seeking motion is desired. First, an accurate seeking span decision algorithm employed to predict the spiral tracks' rotational number during seeking is discussed.
M. Ogawa, O. Ito
semanticscholar   +2 more sources

Track-Following Controller Design for a Compound Disk Drive Actuator

Journal of Dynamic Systems, Measurement, and Control, 1990
The use of compound actuators in both magnetic and optical disk files has become a means of achieving increased servo actuator bandwidths. A compound actuator, comprised of a fine actuator mounted “piggyback” on a coarse actuator, positions the read/write transducers above a radial track.
J. Yen, K. Hallamasek, R. Horowitz
semanticscholar   +2 more sources

Hard disk drive servo technology for media-level servo track writing

IEEE Transactions on Magnetics, 2003
Hard disk drive (HDD) servo technology for media-level servo track writing (MLSTW) is developed. MLSTW is the process of writing servo signals on magnetic disks before they are assembled in drives. It supplies a solution to achieve low-cost and accurate means of servo-signal writing.
K. Takaishi   +5 more
semanticscholar   +2 more sources

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