Erythrocyte deformability can be defined as its ability to deform and squeeze through capillaries. It undergoes various shape transformations and adapt to flow in varying flow conditions / shear stress. Every red blood cell has a cytoskeleton, a sort of scaffolding made of protein molecules called spectrin, attached to the inside of its cell membrane in a brush-like network. When the bonds with...

Motivated by multi-robot construction systems, we introduce the problem of finding squeeze-free Hamiltonian paths in grid graphs. A Hamiltonian path is squeeze-free if it does not pass between two previously visited vertices lying on opposite sides. We determine necessary and sufficient conditions for the existence of squeeze-free Hamiltonian paths in staircase grid graphs. Our proofs are const...

There is some evidence for a small overall negative correlation across populations between sex ratio (proportion male) at birth and adult sex ratio. There seems to be no systematic correlation within populations across time of sex ratio at birth with adult sex ratio during the past 50 years. So even if adult sex ratios play some part in determining the overall level of the sex ratio at birth, t...

In these experiments, two plates were grasped between the thumb and the index finger and squeezed together along a linear track. The force resisting the squeeze, produced by an electromechanical system under computer control, was programmed to be either constant (in the case of the force discrimination experiments) or linearly increasing (in the case of the compliance discrimination experiments...

The effect of squeeze casting process parameters on wear behavior of AC2A aluminium alloy was primarily investigated in this experimental study. Five process parameters, namely squeeze pressure, pouring temperature, die temperature, die material and compression time, each at four levels were chosen and sixteen experimental runs based on L16 orthogonal array were performed. From analysis of vari...

A three-phase ensemble-averaged model is developed for the flow of water and air through a deformable porous matrix. The model predicts a separation of the flow into saturated and unsaturated regions. The model is closed by proposing an experimentally-motivated heuristic elastic law which allows large-strain nonlinear behaviour to be treated in a relatively straightforward manner. The equations...

Title of dissertation: HIGH STRENGTH SEMI-ACTIVE ENERGY ABSORBERS USING SHEARAND MIXED-MODE OPERATION AT HIGH SHEAR RATES Andrew Craig Becnel Doctor of Philosophy, 2014 Dissertation directed by: Professor Norman M. Wereley Department of Aerospace Engineering This body of research expands the design space of semi-active energy absorbers for shock isolation and crash safety by investigating and c...

China's sex ratio imbalance and the surplus of males have received a great deal of attention, but measures of the extent of the marriage squeeze do not take into account the marital status of population. In this paper, we devise an index of the marriage squeeze for the never-married population and use it to project the male marriage squeeze from 2000 to 2060. From the predicted population and n...