A direct numerical simulation method for complex modulus of particle dispersions

We report an extension of the smoothed profile method (SPM)[Y. Nakayama, K. Kim, and R. Yamamoto, Eur. Phys. J. E {\bf 26}, 361(2008)], a direct numerical simulation method for calculating the complex modulus of the dispersion of particles, in which we introduce a temporally oscillatory external force into the system. The validity of the method was examined by evaluating the storage $G'(\omega)$ and loss $G"(\omega)$ moduli of a system composed of identical spherical particles dispersed in an incompressible Newtonian host fluid at volume fractions of $\Phi=0$, 0.41, and 0.51. The moduli were evaluated at several frequencies of shear flow; the shear flow used here has a zigzag profile, as is consistent with the usual periodic boundary conditions

Geothermal Potentials in Puna, Hawaiʻi: How Pele Teaches the Spaces Between

This dissertation offers an examination of the concept of sustainability, via an ethnography of geothermal life in the district of Puna on Hawaiʻi Island. In the midst of global discourse on climate change, population growth, and energy needs, ‘sustainability’ brands a remarkable number of initiatives to signify a thoughtful connection with earth, and concern with the continuation of all of existence. Close examination of what sustainable measures have meant for life in the district of Puna on Hawaiʻi Island, however, reveal the ties of discourses on and enactments of ‘sustainability’ and ‘sustainable’ living to the sustenance of market, colonial inheritance and renewability, and the manufacture of narratives that erase forms of existence—human and nonhuman, including and especially the geological. Examinations of the notion of ‘sustainability’ alongside currents of Kanaka ʻŌiwi inquiries into earth’s heat element and its relations, and settler experiences of geothermal activity, reveal the pliability of material Natures in the face of human desire, the graceless scaffolding of lives under Late Liberalism, and the structure of Late Liberal biases as suspended in love with the biontological—those forms deemed “Life.” In the dissertation I examine engagement points between literatures on Development, Indigeneity, and Space, in particular what they reveal about possible relationships with land and resource, as well as literatures on Foucauldian biopower and what Elizabeth Povinelli (2016) has termed “geontopower”—increasingly exposed arrangements of power as divisions between Life and Nonlife in the Late Liberal period—to think through the commodification of rock and earth, and the spaces between things where the possibility for hulihia (overturning) continues to exist

Researches is health of Pirarucu, Arapaima gigas: partnership between EMBRAPA-SEBRAE.

Aiming to deepen the scientific knowledge on health aspects of pirarucu, and attempting to improve the fingerlings survival rates a partnership was signed between SEBRAE and EMBRAPA, in collaboration with the UFT

Lattice Model of Sweeping Interface for Drying Process in Water-Granule Mixture

Based on the invasion percolation model, a lattice model for the sweeping interface dynamics is constructed to describe the pattern forming process by a sweeping interface upon drying the water-granule mixture. The model is shown to produce labyrinthine patterns similar to those found in the experiment[Yamazaki and Mizuguchi, J. Phys. Soc. Jpn. \textbf{69} (2000) 2387]. Upon changing the initial granular density, resulting patterns undergo the percolation transition, but estimated critical exponents are different from those of the conventional percolation. Loopless structure of clusters in the patterns produced by the sweeping dynamics seems to influence the nature of the transition.Comment: 6 pages, 7 figure