412 research outputs found
A Class of Second Order Difference Approximation for Solving Space Fractional Diffusion Equations
A class of second order approximations, called the weighted and shifted
Gr\"{u}nwald difference operators, are proposed for Riemann-Liouville
fractional derivatives, with their effective applications to numerically
solving space fractional diffusion equations in one and two dimensions. The
stability and convergence of our difference schemes for space fractional
diffusion equations with constant coefficients in one and two dimensions are
theoretically established. Several numerical examples are implemented to
testify the efficiency of the numerical schemes and confirm the convergence
order, and the numerical results for variable coefficients problem are also
presented.Comment: 24 Page
Design and evaluation of a linear damper working with MR shear thickening fluids
Magnetorheological (MR) materials and shear thickening fluids are both smart material and their combination could offer both MR and ST effects. This study looks at the properties and behaviour of magnetorheological shear thickening fluid (MRSTF) in particular whilst applied as a semi-active energy absorber. A device with two forms of varying vibration control has been created and measured. The result shows that this MRSTF filled damper showed both MR and properties
P1-049: Rising incidence of bronchioloalveolar carcinoma and changes in the distribution of lung cancer cell types in China: experience of a teaching hospital
Sensing and Rheological Capabilities of MR Elastomers
Magnetorheological elastomers (MREs) are smart materials where polarized particles are suspended in a non-magnetic solid or gel-like matrix. Two kinds of MREs, namely anisotropic and isotropic, are fabricated either under a magnetic field or without a field [1,2]. In anisotropic MREs, polarised particles are arranged in chains within a polymer media such as silicon rubber or natural rubber. The shear modulus of MRE can be controlled by the external magnetic field, which has led to many applications, such as tuned vibration absorbers, dampers and sensor
SYSTEM INCLUDING CONOSCOPE LENS FOR MEASURING POLARIZATION CHARACTERISTICS OF WIDE FIELD-OF-VIEW LENSES
A lens measurement system including 1) a light source, 2) a lens mounting support configured to hold a lens so that light emitted by the light source is incident on the lens, 3) a conoscope lens positioned to receive light refracted by the lens, and 4) a polarization camera positioned to receive light emitted from the conoscope lens
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