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of electron conductance and harnessing the maximum possible conductance in graphene have now become possible. Thus the findings of this work would advance efforts in further enhancing superior transport characteristics in graphene. Society of Engineering Science ▪ 47 th Annual Technical Meeting 282
Temperature and Strain Rate Sensitivity of Nanocrystalline Metals Nikhil Karanjgaokar Mechanical Science and Engg, University of Illinois at Urbana-Champaign 325 Talbot Lab, 104 S Wright St, Urbana, 61801, US Phone: 2172333122, Email: nkaranj2@illinois.edu Ioannis Chasiotis Aerospace Engg., University of Illinois at Urbana Champaign, Urbana, IL Abstract: Nanocrystalline metal thin films are excellent materials for microelectromechanical Systems (MEMS) and microelectronics due to their outstanding electrical conductivity and high yield strength. However, our recent studies have shown that nanocrystalline FCC metal films are highly strain rate sensitive and their primary creep rates at room temperature are several orders of magnitude higher than the steadystate creep rates previously reported for meso- and micro-scale grain metals. This time dependent inelastic behavior is further accentuated at elevated temperatures: A comprehensive experimental investigation has been carried out to quantify for the first time the strain-rate dependent mechanical behavior of nanocrystalline Au thin films (grain size 64 nm) at strain rates in the broad range of 0.000001 - 10 /s and at temperatures between 25-110° C. Full-field strain measurements of uniformly heated sub-micron thick Au films were supported by microscale infrared temperature profiles for accurate and repeatable experiments. Contrary to expectations, relatively low temperatures (50 °C) resulted in marked shift in rate sensitivity and activation volumes providing strong evidence that nanocrystalline metals are significantly more temperature sensitive than their larger grain counterparts. This presentation will discuss these novel results and the interrelations between strain rate and temperature in nanocrystalline metals. 283 ABSTRACTS
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Abstracts 1 ABSTRACTS
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Contents 4 Foreword 5 Welcome from
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Welcome From College of Engineering
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Roger Fosdick Department of Aerospa
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Invariants in Nonlinear Elasticity
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Coarse-Graining Atomistic Dynamics
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Fracture Behavior of Mechanophore-L
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Stability of periodic media under c
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Three Dimensional Compressible Mult
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Experimental and Modeling Study to
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Thermoresponsive Microcapsules for
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Shear Activation of Mechanophore-Li
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Room Temperature Healing of a Therm
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Collagen Fibrils: Multifunctional N
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Tianxiang Su Mechanical Engineering
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Understanding the Influence of Stra
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Thermodynamic Based Higher-Order Gr
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35 ABSTRACTS
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where is the heating rate. Derivati
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Oxidation and Hole Formation in Alu
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Effect of surface tension and energ
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A Computational Framework for Micro
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45 ABSTRACTS
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It has been suggested that air bubb
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Fig. 2. Melting temperature vs part
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Quantifying the Effect of Pulsatile
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Error analysis for 3-D shape measur
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To test the effects of the ultrasou
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Surface Coverage and Hybridization
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Track 1 Horner Symposia 59 ABSTRACT
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A 3D Pseudo-Elastic Model for Mulli
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Analytical Solutions for the Onset
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References [1] J. D. Humphrey. Nati
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Analysis of Stiffness Variations in
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Indentation of a Nonlinear Viscoela
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Linear Theory for the Bending and S
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Buckling and Finite Deformation of
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Remarks on the Infinitesimal Stabil
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finite characteristic dimensions, t
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On Mathematics in Ray Ogden's Contr
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Superposition of Finite-Amplitude S
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Stability of Electro Active Polymer
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Modelling of Electro-Viscoelasticit
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The Vibration Induced Dissipative H
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Arterial Modeling Considering the M
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A Two-Scale Collagen Turn-Over Mode
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Statistical Non-Linear Fibre-Reinfo
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A Model of Growth and Mass Transfer
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Reading the Mechanical Response of
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Fundamental Solution in Plane Aniso
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Simply Unreal: Grassmann Hypercompl
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Influence of Fiber Dissolution and
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On the electro-mechanical response
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On the Importance of Counterion Con
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Stewart Silling Sandia National Lab
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On the Modeling of Rheological Beha
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Acoustoelastic Measurement of Surfa
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Time permitting, we consider the Ta
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Effect of Nonlinearity on the Stead
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Is Step-Flow Epitaxy Ever Stable? M
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Entropy of a Constrained Hamiltonia
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The Volume Derivative and Fracture
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The Anomalous Behavior of Material
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Energy Release Rate of Dielectric M
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SYMPOSIUM 2-2 Cell Mechanics ORGANI
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study to show the highly three-dime
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Chemomechanics at the Cell-material
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Interplay between Cell and Matrix S
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A Coarse-Grain Molecular Dynamics M
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Contact Mechanics of Circular Membr
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Fibroblast Elongation, Dendritic Ex
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Applying Controlled Loads to Single
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An Overview of Vibro-Acoustography
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Fracture between Molecules Kenneth
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Investigation of Skull Hemorrhage a
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Uncovering Morphological and Morpho
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Microcantilever Based Aptameric Nan
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Fluid-Structure Interaction Models
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Anaylzing Range of Motion in Total
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Direct Measurement of Plastic Dissi
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The Influence of Screw Thread and T
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Static Evaluation of Shear Loading
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during 5000 test cycles, load drop
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Nanomechanics of Tropocollagen and
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Hip Implant Interfacial Motion, a F
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Mapping Tibial Surface Strains usin
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Bone Isotropy Characterization Unde
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Effects of Anthropometric Geometry
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On Stress Theory for Fractal Bodies
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The Kinetic Relation as a Pivotal P
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Creasing Instability in Soft Matter
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Inverse Stress Analysis in AAA Cons
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Experimental and Modeling Study to
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Material Analysis for the Developme
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Experimentally Verified Approach fo
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A Long-Pulse Kolsky Bar Technique f
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Active Porous Scaffolds for Control
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Sensor Behavior of Magneto-Rheologi
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Slipping Plane Plasticity using the
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Internal Fluctuation of DNA in Nano
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Carmel Majidi Harvard University, S
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Coupling of Localized Buckling Defo
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An Energy-Based Approach to Capture
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A Theory of Actuation of Ionic Poly
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Three-Dimensional Imaging of Crysta
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In-situ Reconstruction of Tip-sampl
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TRACK 3 Fluid Mechanics 213 ABSTRAC
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Alan Wineman Comments on the Career
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Numerical Solutions in Nonlinear Ma
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Mathematical Modeling of a New Clas
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Mixture Theory to Study Blood Flow
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Phase Field Theory for Phase Transf
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Nonlocal Gradient-Dependent Constit
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On Unsteady Non-homogenous Flows of
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Fluid Dynamics of the Deepwater Hor
Page 231 and 232: SYMPOSIUM 3-2 Dynamics and Rheology
Page 233 and 234: Modeling and Homogenization of Bact
Page 235 and 236: Dynamics of a Semi-flexible Polar F
Page 237 and 238: Dense Cellular Blood Flow in a Mode
Page 239 and 240: Drag, Diffusive Motion, and Mixing
Page 241 and 242: SYMPOSIUM 3-3 Experimental Fluid Me
Page 243 and 244: Population, Characteristics and Kin
Page 245 and 246: The Effect of Particle Concentratio
Page 247 and 248: A Hybrid Simulation of Continuum an
Page 249 and 250: An Experimental Study of Pulsed Mic
Page 251 and 252: SYMPOSIUM 3-5 Fluid Issues in Renew
Page 253 and 254: Influence of Cylinder Aspect Ratio
Page 255 and 256: Numerical Investigation of Aerodyna
Page 257 and 258: SYMPOSIUM 3-8 Multiphase Flow ORGAN
Page 259 and 260: Three Dimensional Compressible Mult
Page 261 and 262: Numerical Simulation of Gust Respon
Page 263 and 264: SYMPOSIUM 4-1 Nanomechanics: Beyond
Page 265 and 266: Nano Adhesion and Indentation Kenne
Page 267 and 268: Atomistic Mechanisms of Cyclic Hard
Page 269 and 270: Broadband Nanoindentation Spectrosc
Page 271 and 272: Importance of AFM Beam Dynamics for
Page 273 and 274: Quantitatively Exploring the Mechan
Page 275 and 276: Effect of Scales and high Temperatu
Page 277 and 278: Experimental and Model Developments
Page 279 and 280: Controlled Carbon Nanotube Junction
Page 281: Understanding the Influence of Stra
Page 285 and 286: The Influence of Chemical Substitut
Page 287 and 288: Non-Uniqueness in Energy Minimizati
Page 289 and 290: Coarse-Graining Atomistic Dynamics
Page 291 and 292: simulations will also be discussed,
Page 293 and 294: Dislocation Cores in Elastically An
Page 295 and 296: SYMPOSIUM 4-3 Strain Rate Effects i
Page 297 and 298: Dynamic-Tensile-Extrusion in Low Im
Page 299 and 300: Wave Profile Shaping for Shock-Tube
Page 301 and 302: SYMPOSIUM 4-4 Size Scale Effects in
Page 303 and 304: Atomistic and Continuum Understandi
Page 305 and 306: Physical Interpretation and Experim
Page 307 and 308: Tensile Ductility and Plasticity Me
Page 309 and 310: A New Nonlocal Shell Model for Axis
Page 311 and 312: Effect of Surface Roughness and Fun
Page 313 and 314: An Analysis of the Effects of Surfa
Page 315 and 316: A SEM Image-based Finite Element Ap
Page 317 and 318: SYMPOSIUM 4-5 Phase Transformations
Page 319 and 320: Modeling and Simulation of Strain-i
Page 321 and 322: Nanovoid Nucleation Inside Elastopl
Page 323 and 324: Molecular Dynamics Study of Thermal
Page 325 and 326: Effect of Surface Tension and Energ
Page 327 and 328: A bi-crystal Aggregate Model of Mar
Page 329 and 330: SYMPOSIUM 4-6 Multifunctional Compo
Page 331 and 332: Electrified Carbon Fiber Polymer Ma
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Thermal and Mechanical Properties o
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Carbon Nanotube Buckypaper Material
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Effective Parameters of Bucky Gel M
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Influence of Surface Roughness and
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Microvascular Networks for Thermal
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Henghua Jin University of Illinois
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A High Temperature Cured Structural
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Autonomic Structural Cooling via Ad
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Pressurized Vascular Systems for He
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Photovoltaic Waveguide Polymer Comp
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Effect of Silane Coupling Agent on
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Crushing Behavior of Composite Hexa
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Degradation Kinetics of Aerospace W
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Multiscale Modeling of Micro/nano S
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[1] Y.A. HUANG, Z. YIN, A. TESFAMIC
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Quantitative Nondestructive Evaluat
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A Multiscale Model of Rate Dependen
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Localization Analysis of Porous Met
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Negative Stiffness and Negative Poi
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Failure Surfaces for Fiber-Reinforc
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Nonlocal Boundary Layer Method for
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An Exact Solution for History-Depen
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Development of an Internal State Va
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A Study of Highly Crosslinked Epoxy
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Convergence and Scaling in Peridyna
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Graphene Fracture Kyug-Suk Kim Brow
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A Computational Framework for Micro
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Measurement of Mechanical Propertie
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The Role of Electrons in Nanostruct
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Thermoresponsive Microcapsules for
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Elastic Softening of Amorphous and
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Autonomic Restoration of Conductivi
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Response of Composite Structures to
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Lateral Vibration of a Travelling T
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Shear Activation of Mechanophore-Li
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Cooling Effects on the Vibronic Ban
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Dynamoic Damage Tolerance of Aerona
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SYMPOSIUM 4-13 Laser and Multi-Ener
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Ab initio Simulation of Photo-disso
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Laser Texturing of Polyimide for Al
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Surface Modification of Titanium Vi
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Coating Deposition via Insertion of
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Laser Resonant Vibrational Excitati
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Femtosecond Laser Fabrication of Ne
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Multi-fluid Model of Early-stage Fe
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Track 6 Nondestructive Evaluation o
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Developments in Testing and Health
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High Volume, Remote Sensing, Non-in
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Development and Application of Magn
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A Performance Measure for Ceramic A
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Probing Acoustic Nonlinearity using
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Ultrasonics of Periodic Structures
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Nanoscale Interfacial Probing of Ru
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Laser Ultrasonic Thermometry for In
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Physics-based Analysis of Infrared
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Acoustic Characteristics Measuremen
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