Six permalloy (Py) half-rings with finite-size from 120 nm to 360 nm were connected in series on five corners. The magnetization reversal processes were investigated by the measurement of anisotropic magnetoresistance (AMR). The number of switching jumps in the AMR loops, from zero to five, varied with the longitudinal applied field. These discrete jumps resulted from domain wall (DW) nucleating and depinning on the corners. The larger external field had a fewer number of jumps in the magnetoresistance (MR) curve. This reproducible and particular response of the domain wall device in the half-ring wires pattern might be one of the new promising magnetoelectronic devices.
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http://dx.doi.org/10.3390/ma13061384 | DOI Listing |
Strategies Trauma Limb Reconstr
January 2020
Paediatric and Limb Reconstruction Unit, Royal National Orthopaedic Hospital, Stanmore, United Kingdom.
Aim: We have encountered four cases with Taylor spatial frames (TSF) (Smith & Nephew, Memphis, TN, USA) with breakage at the half-ring junction of the distal ring. This study examines the strain produced on different locations of the distal ring during loading and the effects on the strain of altering the frame construct.
Materials And Methods: We mounted two ring TSF constructs on tibia saw bone models.
Materials (Basel)
March 2020
Department of Materials Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
J Orthop Case Rep
June 2016
Department of Orthopaedic Surgery, Seth G.S. Medical College & K.E.M. Hospital, Mumbai. India.
Introduction: External fixator application can be difficult for olecranon fractures in presence of large degloving injuries. We describe use of simple Ilizarov ring fixator construct for grade IIIB open olecranon fracture management.
Case Report: A 45-year-old female with Grade III B open comminuted olecranon fracture (30*15cm degloving area) and ulnar nerve palsy was treated with a novel ring fixator construct.
Case Rep Orthop
July 2013
Department of Paediatric Orthopaedic Surgery, Royal Manchester Children's Hospital, M13 9WL, UK.
Paediatric calcaneal fractures are rare injuries usually managed conservatively or with open reduction and internal fixation (ORIF). Closed reduction was previously thought to be impossible, and very few cases are reported in the literature. We report a new technique for closed reduction using Ilizarov half-rings.
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July 2012
National Center for Scientific Research, Marseille, France.
Ultrasound tomography has considerable potential as a means of breast cancer detection because it reduces the operator-dependency observed in echography. A half-ring transducer array was designed based on breast anatomy, to obtain reflectivity images of the ductolobular structures using tomographic reconstruction procedures. The 3-MHz transducer array comprises 1024 elements set in a 190-degree circular arc with a radius of 100 mm.
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