Seepage is ubiquitous during tunneling in areas with high groundwater tables. The ground settlement trough on a single tunnel well described by Peck’s formula, but it cannot reflect the caused seepage. In this paper, assuming that inside and outside one-dimensional steady-state seepage condition, drainage model of was established. Based principle dynamics, flow calculation formula derived, dewa...

The National Energy Technology Laboratory, the Japan Oil, Gas and Metals Corporation, U.S. Geological Survey are leading an effort to conduct extended gas hydrate production test in northern Alaska. proposed required drilling of initial stratigraphic well (STW) confirm geologic conditions site. This was completed January 2019 cooperation with Prudhoe Bay Unit Working Interest Owners. Hydrate-01...

Increasing settlement and post-settlement survival during the critical transition from planktonic larvae to benthic juveniles will increase efficiency for sea urchin aquaculture. This study investigated the effects of temperature and settlement cues on the settlement and post-settlement survival of the sea urchin Tripneustes gratilla during this phase. The current commercial methodology, which ...

In this paper, we investigate the buckling of an air-water interface populated by lycopodium powder particles using a specially designed Langmuir trough with side walls that deformed affinely with the particle-laden interface in order to minimize the effect of shear during compression. Confinement effects from the side walls were studied by systematically reducing the width of the Langmuir trou...

In his recent paper, Dobson (2005) concludes that, contrary to the work of McHenry and Berger (1998a,b), the pattern of differences in joint proportions between the partial skeleton Stw 431 and A.L. 288-1 ‘‘does not correspond to the pattern revealed from a comparison of large samples of unassociated postcranial material from Sterkfontein Member 4 and Hadar’’ (Dobson, 2005, p. 153). Using exact...

Abstract In Part 1, we have considered the dynamics of topographically confined glaciers, which may undergo surge cycles when bed becomes temperate. this 2, consider ice discharge over a flatbed, would self-organize into alternating stream/ridge pairs wet/frozen beds. The meltwater drainage, no longer curbed by trough, counter conductive cooling to render minimum strength at some intermediate w...

BACKGROUND The paediatric full blood count and lymphocyte subset reference intervals used by the National Health Laboratory Service (NHLS), South Africa (SA), are taken from two international reference interval publications. Differences in reference intervals suggest that international data sets may not be appropriate for use in SA. OBJECTIVE To study immunohaematological values of a group of...