Tracking postoperative head positioning in endothelial keratoplasty using a head positioning sensor
Sign Up to like & getrecommendations! Published in 2020 at "Graefe's Archive for Clinical and Experimental Ophthalmology"
DOI: 10.1007/s00417-020-04743-3
Abstract: Dear Editor, Descemet stripping automated endothelial keratoplasty (DSAEK) and Descemet membrane endothelial keratoplasty (DMEK) have become standard posterior corneal replacement techniques due to excellent visual outcomes and faster visual rehabilitation compared with traditional full-thickness transplants… read more here.
Keywords: head; head positioning; positioning sensor; endothelial keratoplasty ... See more keywords
Analysis of Sampled-data Open-loop Characteristics on Magnetic-Head Positioning System in HDDs
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.1155
Abstract: Abstract In the magnetic-head positioning system in hard disk drives (HDDs), it is hard to analyze the effect of mechanical resonances beyond the Nyquist frequency after the HDDs were assembled. However, unexpected variations of mechanical… read more here.
Keywords: magnetic head; positioning system; head positioning; system hdds ... See more keywords
Compensation and identification for external disturbances in head positioning systems of hard disk drives based on a data-based design method
Sign Up to like & getrecommendations! Published in 2019 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2018.06.001
Abstract: Abstract This paper introduces a compensation and identification method for external disturbances in head positioning systems of hard disk drives (HDDs). For increasing a data capacity of HDDs, head positioning control system must compensate for… read more here.
Keywords: compensation identification; external disturbances; method; design ... See more keywords
Coupling Controller Design for MISO System of Head Positioning Control Systems in HDDs
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2020.2978156
Abstract: Head positioning control systems are required to improve the positioning accuracy and thus increase the recording capacity of hard disk drives (HDDs). Existing head positioning control systems employ a dual-stage actuator system comprising a voice… read more here.
Keywords: system; control; controller design; design ... See more keywords
International beliefs and head positioning practices in patients with spontaneous hyperacute intracerebral hemorrhage
Sign Up to like & getrecommendations! Published in 2023 at "Therapeutic Advances in Neurological Disorders"
DOI: 10.1177/17562864231161162
Abstract: Background: Prior to the conduct of the Head Position in Stroke Trial (HeadPoST), an international survey (n = 128) revealed equipoise for selection of head position in acute ischemic stroke. Objectives: We aimed to determine whether equipoise… read more here.
Keywords: hyperacute ich; head; head position; head positioning ... See more keywords
Does gradual change in head positioning affect cerebrovascular physiology?
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DOI: 10.14814/phy2.13603
Abstract: We studied cerebral blood velocity (CBV), and associated hemodynamic parameters during gradual changes in head positioning in a nonstroke group. CBV (transcranial Doppler ultrasound), beat‐to‐beat blood pressure (BP, Finometer), and end‐tidal carbon dioxide (ETCO2, capnography)… read more here.
Keywords: head positioning; gradual change; visit; physiology ... See more keywords