We consider the problem of dynamic cavity formation in isotropic compressible nonlinear elastic media. For the equations of radial elasticity we construct self-similar weak solutions that describe a cavity emanating from a state of uniform deformation. For dimensions d = 2, 3 we show that cavity formation is necessarily associated with a unique precursor shock. We also study the bifurcation dia...

We introduce a new model for the dynamics of a wormlike chain in an environment that gives rise to a rough free energy landscape, which we baptise the glassy wormlike chain. It is obtained from the common wormlike chain by an exponential stretching of the relaxation spectrum of its long-wavelength eigenmodes, controlled by a single parameter E . Predictions for pertinent observables such as the...

Abstract. Sea ice drift and deformation, namely sea dynamics, play a significant role in atmosphere–ice–ocean coupling. Deformation patterns can be observed over wide range of spatial temporal scales, though high-resolution objective quantification these features remains difficult. In an effort to better understand local deformation ice, we adapt the trajectory-stretching exponents (TSEs), quas...

Molecular dynamic simulations are performed to systematically investigate the structural mechanical properties of ZnO nanorods (NRs) using the empirical Buckingham potential. The considered NRs have hexagonal cross-sections with lateral dimension ranging from 1-10nm and constant length 10.4nm. Different from its bulky counterpart, the results show that ZnO NRs undergo a size dependent four-stag...

We discuss the use of low-dimensional physical models of the voice source for speech coding and processing applications. A class of waveform-adaptive dynamic glottal models and parameter tracking procedures are illustrated. The model and analysis procedures are assessed by addressing signal transformations on recorded speech, achievable by fitting the model to the data, and then acting on the p...

Transformation functions utilizing the global information content of an input image have been long serving contrast enhancement by stretching the dynamic range of intensity levels. Other transformation functions focus on local information content to correct image details, such as edges and texture. In this paper, an effective method for image contrast enhancement is presented with a mapping fun...

We discuss the use of low-dimensional physical models of the voice source for speech coding and processing applications. class of waveform-adaptive dynamic glottal models and parameter identification procedures are illustrated. The model and the dentification procedures are assessed by addressing signal transformations on recorded speech, achievable by fitting the model to the ata, and then act...

Twenty-four rapidly adapting (RA) cutaneous afferents were recorded from a preparation of isolated, innervated hairy skin from the rat hindlimb for the purpose of identifying the mechanical variables associated with the initiation of afferent discharge. Neurons were studied while the skin was stretched dynamically along a single direction with the use of a linear actuator and a feedback control...

Static stretching was once recognized as a method of preparation for physical activity that would inhibit performance and increase risk of injury. However, a growing body of research suggests that static stretching may not have an inhibitory effect. Regardless, the data have not examined gender differences or the fatigue index (FI) and flexibility effects of static stretching on the back squat ...