We present a model for the distribution of void sizes and its evolution within the context of hierarchical scenarios of gravitational structure formation. For a proper description of the hierarchical buildup of the system of voids in the matter distribution, not only the voidin-void problem should be taken into account, but also that of the void-in-cloud issue. Within the context of the excursi...

In the present research, damage mechanisms during room temperature uniaxial tensile testing of two different modern high strength dual phase steels,DP780 and DP980, were studied. Detailed microstructural characterization of the strained and sectioned samples was performed by scanning electron microscopy (SEM). The results revealed that interface decohesion, especially at the triple junctions of...

This column consists in a dialogue (sections 2 and 3) between Cookie and Parabel, protagonists from an earlier column called “Fragments of the Void” (Kauffman, 2004). The dialogue is about the nature of number and the emergence of form and number from the void. In this discussion the void is not empty. It is quite full. The void consists in what is given prior to any distinction. Thus in the vo...

Laser shock experiments conducted at an energy density of 61 MJ/m revealed void initiation and growth at stress application times of approximately 10 ns. It is shown that void growth cannot be accomplished by vacancy diffusion under these conditions, even taking into account shock heating. An alternative, dislocation-emission-based mechanism, is proposed for void growth. The shear stresses are ...

In this paper, we study the evolution of a relativistic, superhorizon-sized void embedded in a Friedmann-Robertson-Walker universe. We numerically solve the spherically symmetric general relativistic equations in comoving, synchronous coordinates. Initially, the fluid inside the void is taken to be homogeneous and nonexpanding. In a radiation-dominated universe, we find that radiation diffuses ...

Abstract The roundtable gathers specialists dedicated to thinking through the Afro-Gothic as a conceptual approach black aesthetics and theoretical framework. In spirit of camaraderie intellectual curiosity, contributors consider meanings from various disciplines diasporic perspectives. participants discuss ways in which horror, haunting, uncanny, monstrous, fantastic are manifest and, doing so...