The microgravity experienced during space flight induces physiological changes that affect astronauts' health and performance. Simulations such as prolonged bed rest can mimic some of these changes and provide study conditions that are more accessible than during space flight itself. Previous studies, including several long and short-term bed-rest campaigns supported by ESA, have yielded signif...

Based on a study of 49 conodont and 57 geochemical samples from the Upper Triassic, carbonate-dominated Dengdengqiao Formation, Qinling Basin, China, Carnian conodonts carbon isotope records are first reported. Two genera four species have been identified amongst 87 elements: Mosherella praebudaensis, Mo. longnanensis sp. nov., sp., “Misikella” longidentata. The presence praebudaensis indicates...

A feasibility study of a conventional fixed-bed reactor and packed-bed membrane (PBMR) in distributor configuration is carried out for the selective oxidation methanol to oxygenates dimethoxymethane methyl formate on VOx/TiO2 catalyst. Kinetic experiments provided reaction network reliable kinetic model six main reactions involved. The PBMR offers significant advantages potential formation both...

Lymphocele formation in the kidney transplant bed is most common postoperative complication after transplantation. The article presents observation of a clinically significant lymphocele bed. Materials and methods . Allogeneic heterotopic transplantation from post-mortem donor was performed 28-year-old patient with clinical diagnosis stage 5 chronic disease as result congenital anomaly developm...

The one step hydroxylation of benzene has been performed over structured catalytic bed made of ZSM-5 coatings grown by hydrothermal synthesis on stainless steel grids. The catalysts demonstrated a 97% selectivity towards phenol formation at benzene conversion of 11%. In addition of achieving the same reactivity as over the traditional zeolitic fixed beds, these new catalytic packings present se...

Grignard reagent formation in continuously operated magnesium packed-bed reactors can be influenced by finetuning the residence time distribution within packing. By decreasing turning size and increasing...

the mechanism of flow and sediment transport in channel bend is much complex. because of secondary current, the sediment moves away from outer bank toward inner bank and therefore outer bank of the bend is one of best positions for lateral diversion. in this paper, the mechanism of sediment transport was simulated with ssiim software in the u shape channel with lateral intake. in order to verif...

bed in which we deduce that hydrostatic pressure is elevated. In the newborn lamb, the results suggest a lower capillary pressure and larger capillary bed than in the fetus. The pulmonary vascular bed of the fetus, we conclude, may contain large unperfused areas; and vasodilation at birth may take place mainly by recruitment of additional areas. There is support for these ideas in the very nonl...

We study the spontaneous formation of granular towers produced when dry sand is poured on a wet sand bed. When the liquid content of the bed exceeds a threshold value W*, the impacting grains have a nonzero probability to stick on the wet grains due to instantaneous liquid bridges created during the impact. The trapped grains become wet by the capillary ascension of water and the process contin...

Local scour around a cylindrical pier in a channel with an erodible bed or natural bed is a common problems in bridge or pile supported structure. The highly unsteady complex flow field around a circular pier produces scour hole mainly for the presence of vortices. The main mechanism that drives the formation and evolution of the scour hole around bridge pier is horse shoe vortex motion. In the...