A
Andrea J. Liu
Researcher at University of Pennsylvania
Publications - 240
Citations - 16296
Andrea J. Liu is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Atomic packing factor & Jamming. The author has an hindex of 61, co-authored 230 publications receiving 14092 citations. Previous affiliations of Andrea J. Liu include University of Maryland, College Park & Oak Ridge National Laboratory.
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Journal ArticleDOI
Jamming is not just cool any more
Andrea J. Liu,Sidney R. Nagel +1 more
TL;DR: In this article, it was suggested that the properties of jammed solids should be considered as belonging to a new class of materials known as fragile matter which, because of its unusual mechanical properties, requires a new theoretical description.
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Jamming at zero temperature and zero applied stress: the epitome of disorder.
Corey S. O'Hern,Corey S. O'Hern,Leonardo E. Silbert,Leonardo E. Silbert,Andrea J. Liu,Sidney R. Nagel +5 more
TL;DR: The results provide a well-defined meaning for "random close packing" in terms of the fraction of all phase space with inherent structures that jam, and suggest that point J is a point of maximal disorder and may control behavior in its vicinity-perhaps even at the glass transition.
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The Jamming Transition and the Marginally Jammed Solid
Andrea J. Liu,Sidney R. Nagel +1 more
TL;DR: In this paper, the authors review recent work on the jamming transition and present a simple model: frictionless spheres interacting via repulsive finite-range forces at zero temperature, where the transition has aspects of both first and second-order transitions.
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Random packings of frictionless particles.
TL;DR: Numerical simulations of random packings of frictionless particles at T = 0.05 show that the distribution of threshold packing fractions narrows, and its peak approaches random close packing as the system size increases.
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Generalized Levy walks and the role of chemokines in migration of effector CD8+ T cells
Tajie H. Harris,Edward J. Banigan,David A. Christian,Christoph Konradt,Elia D. Tait Wojno,Kazumi Norose,Emma H. Wilson,Beena John,Wolfgang Weninger,Wolfgang Weninger,Andrew D. Luster,Andrea J. Liu,Christopher A. Hunter +12 more
TL;DR: CD8+ T-cell behaviour is similar to Lévy strategies reported in organisms ranging from mussels to marine predators and monkeys, and CXCL10 aids T cells in shortening the average time taken to find rare targets.