Search for tag: "natural materials"

504 Media

39:23 Ordered and disordered motion in dense active… Ordered and disordered motion in dense active materials - Ludovic Berthier	Ordered and disordered motion in dense active materials - Ludovic Berthier We discuss how the non-equilibrium driving forces introduced by the natural biological activity or by physical self-propulsion mechanisms generically affect the structure, dynamics and phase behavior… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 34 views 0 name Ludovic Berthier Date 04/19/2018
11:33 Local and global avalanches in sheared granular… Local and global avalanches in sheared granular materials - Aghil Abed Zadeh	Local and global avalanches in sheared granular materials - Aghil Abed Zadeh We perform a stick-slip experiment to characterize avalanches for granular materials. In our experiment, a constant speed stage pulls a slider which rests on a vertical bed of circular photoelastic… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 19 views 0 name Aghil Abed Zadeh Date 04/20/2018
40:50 Exploiting disorder - Sid Nagel Exploiting disorder - Sid Nagel	Exploiting disorder - Sid Nagel We are taught to understand solids by considering ideal crystals. This approach becomes untenable as the amount of disorder increases; for a glass with no well-defined long-range order, a crystal is… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 12 views 0 name Sid Nagel Date 04/20/2018
40:42 The Topological Character of Smectics - Randy… The Topological Character of Smectics - Randy Kamien	The Topological Character of Smectics - Randy Kamien Though the systematic use of topology to understand defects in ordered matter is now nearly 50 years old, the original work failed to completely characterize systems with broken translational order,… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 16 views 0 name Randy Kamien Date 04/18/2018
29:08 Symmetry Breaking during the Synthesis of… Symmetry Breaking during the Synthesis of Nanoparticles - Younan Xia	Symmetry Breaking during the Synthesis of Nanoparticles - Younan Xia Symmetry breaking is a ubiquitous phenomenon that occurs spontaneously when a system is subjected to variations in size and/or perturbations in terms of thermodynamic parameters. As a stochastic… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 44 views 0 name Younan Xia Date 04/19/2018
31:22 Fracturing of marginally stable structures: fiber… Fracturing of marginally stable structures: fiber networks and topological metamaterials - Xiaoming Mao	Fracturing of marginally stable structures: fiber networks and topological metamaterials - Xiaoming Mao When conventional brittle materials break, long cracks form due to stress focusing at crack tips: a phenomenon explained by Griffith in the 1920s. In this talk, we will discuss two types of systems… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 23 views 0 name Xiaoming Mao Date 04/19/2018
11:56 Mechanics of Active Networks – Lessons from… Mechanics of Active Networks – Lessons from Fire Ant Aggregations - Shankar Lalitha Sridhar	Mechanics of Active Networks – Lessons from Fire Ant Aggregations - Shankar Lalitha Sridhar Biological assemblies in nature are seen as active matter due to their ability to perform intelligent collective motion based on neighbor interactions and sometimes without any centralized control… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 7 views 0 name Shankar Lalitha Sridhar Date 04/19/2018
09:46 "Cellular packing, mechanical stress and the… "Cellular packing, mechanical stress and the evolution of multicellularity - Shane Jacobeen	"Cellular packing, mechanical stress and the evolution of multicellularity - Shane Jacobeen The evolution of multicellularity set the stage for sustained increases in organismal complexity. However, a fundamental aspect of this transition remains largely unknown: how do simple clusters of… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 8 views 0 name Shane Jacobeen Date 04/19/2018
11:44 Cell contraction induces long-ranged stress… Cell contraction induces long-ranged stress stiffening in the extracellular matrix - Pierre Ronceray	Cell contraction induces long-ranged stress stiffening in the extracellular matrix - Pierre Ronceray Animal cells in tissues are supported by biopolymer matrices, which exhibit highly nonlinear mechanical properties. Here we show that this nonlinearity allows living contractile cells to generate a… symposium on soft matter forefronts science and technology of advanced materials and interfaces (stami)college of sciences georgia tech spring 2018 From Kathryn Gentilello 10 Months ago 7 views 0 name Pierre Ronceray Date 04/19/2018
38:19 Some universal features of soft random solids -… Some universal features of soft random solids - Paul Goldbart	Some universal features of soft random solids - Paul Goldbart The aim of this talk is to look at soft random solids through the lens of condensed matter theory, and to explore how their core features -- most notably their random structure and elasticity… science and technology of advanced materials and interfaces (stami)spring 2018 symposium on soft matter forefronts georgia tech college of sciences From Kathryn Gentilello 10 Months ago 13 views 0 name Paul Goldbart Date 04/18/2018