MPD is one of the effective means to solve drilling problems in deep-water and deep-stratum complex formations such as narrow pressure window. To reduce cost, it mostly implemented only window strata. However, at present, there no scientific method determine matching stratum interval under “conventional + MPD” composite mode. Aiming this problem, by introducing methods risk quantitative evaluat...

We study the structural instability mechanism and effect of a multi-echelon support in very-deep roadways. We conduct a scale model test for analysing the structural failure mechanism and the effect of multi-echelon support of roadways under high horizontal stress. Mechanical bearing structures are classified according to their secondary stress distribution and the strength degradation of the s...

The functional organization of the bovine rumen epithelium has been examined by electron and light microscopy combined with immunocytochemistry to define a transport model for this epithelium. Expression of connexin 43, an integral component of gap junctions, the tight-junction molecules claudin-1 and zonula occludens 1 (ZO-1), and the catalytic alpha-subunit of Na(+)-K(+)-ATPase was demonstrat...

This trawl survey was carried out during 2013 for the stock assessment of families Haemulids, Nemipterids and Ariids in the Oman Sea. Sampling was carried out at five different stratum and depths. The highest value of CPUA of Haemulidae was estimated for Pomadasys stridens in “B” stratum (885.78 kg nm-2), for Pomadasys kaakan at depths of 10-20 m  (330.35 kg nm-2), and for Nemipteridae it was e...

The functional organisation of the bovine rumen epithelium has been examined by electron and light microscopy combined with immunocytochemistry in order to define a transport model for this epithelium. Expression of connexin-43, an integral component of gap-junctions, the tight-junction molecules claudin-1 and ZO-1 and the catalytic α-subunit of the Na-K/ATPase were demonstrated by SDS/PAGE and...

Submitted for the MAR10 Meeting of The American Physical Society Hydrodynamic Interaction of Colloid Suspension in Ribbon Channels1 BINHUA LIN, SERGEY NOVIKOV, STUART A. RICE, University of Chicago — We report the results of an experimental study of hydrodynamic interaction in colloid suspensions that are intermediate between quasi-one-dimensional (q1D) and quasi-two-dimensional (q2D) systems. ...

The loss of Y-linked genes during sex chromosome evolution creates a potentially deleterious low gene dosage in males. Recent studies have reported different strategies of dosage compensation. Unfortunately, most of these studies investigated taxa with comparatively old sex chromosome systems, which may limit insights into the evolution of dosage compensation and thus into the causes of differe...