Journal ArticleDOI
Demagnetizing Factors of the General Ellipsoid
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TLDR
In this paper, the demagnetizing factors of ellipsoids of three different axes are presented, along with supplementary formulas which cover a large number of special cases of ellipses.Abstract:
Charts and tables of the demagnetizing factors of prolate and oblate spheroids are readily available; however, demagnetizing factors of ellipsoids of three different axes are incompletely tabulated and laborious to calculate. This article presents charts and tables which make possible easy determination of the demagnetizing factor for any principal axis of an ellipsoid of any shape. Formulas for the demagnetizing factors of the general ellipsoid are included together with supplementary formulas which cover a large number of special cases.read more
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Journal ArticleDOI
Accuracy and precision of MR blood oximetry based on the long paramagnetic cylinder approximation of large vessels.
TL;DR: The data suggest that %HbO2 can be measured reproducibly in vivo in large vessels of the peripheral circulation on the basis of the paramagnetic cylinder approximation of the incremental field.
Journal ArticleDOI
Ant antennae: are they sites for magnetoreception?
Jandira Ferreira de Oliveira,Eliane Wajnberg,Darci M. S. Esquivel,Sevil Weinkauf,Michael Winklhofer,Marianne Hanzlik +5 more
TL;DR: The amount of magnetic material associated with Johnston's organ and other joints appears to be sufficient to produce a magnetic-field-modulated mechanosensory output, which may therefore underlie the magnetic sense of the migratory ant.
Journal ArticleDOI
Pores with longitudinal irregularities distinguish objects by shape.
Yinghua Qiu,Preston Hinkle,Crystal Yang,Henriëtte E. Bakker,Matthew Schiel,Hong Wang,Dmitriy Melnikov,Maria E. Gracheva,Maria Eugenia Toimil-Molares,Arnout Imhof,Zuzanna S. Siwy +10 more
TL;DR: This manuscript proposes using pores with longitudinal irregularities as a sensitive tool capable of distinguishing spherical and rod-shaped particles with different lengths between objects of similar volume but different shapes.
Journal ArticleDOI
Modeling and simulation of magnetic-shape-memory polymer composites
TL;DR: In this article, the magnetic-field-induced deformation of composites, on the basis of a continuous model incorporating elasticity and micromagnetism, in a reduced two-dimensional, plane-strain setting, is investigated.
Proceedings ArticleDOI
Magnetically actuated soft capsule endoscope for fine-needle aspiration biopsy
TL;DR: In in vitro trials, B-MASCE demonstrated rolling locomotion and biopsy of a swine tissue model positioned inside an anatomical human stomach model and it was confirmed after the experiment that a tissue sample was retained inside the needle.