The wear and rolling contact fatigue (RCF) performance of eutectoid hypereutectoid rail steels were studied. Subsequently, the microstructure evolutions subsurface materials these two after testing comparatively investigated. results indicated that, compared with rail, had lower loss, but longer RCF crack lengths. After rolling-sliding testing, original equiaxed undeformed coarse grains rails i...

The adsorption/desorption characteristics for light and heavy rare earth elements (REEs) on halloysite illite (which are beneficial the utilization of ion-adsorption RE ore) were systematically investigated compared. Additionally, fully charactered by XRD, SEM, microscope, zeta potential, nitrogen adsorption–desorption isotherms buffer pH to build relationship between mechanisms minerals’ prope...

Using x-ray diffraction and NMR spectroscopy, we present structural and material properties of phosphatidylserine (PS) bilayers that may account for the well documented implications of PS headgroups in cell activity. At 30 degrees C, the 18-carbon monounsaturated DOPS in the fluid state has a cross-sectional area of 65.3 A(2) which is remarkably smaller than the area 72.5 A(2) of the DOPC analo...

Silver nanoparticles (Ag-NPs) were synthesized into the interlamellar space of montmorillonite (MMT) by using the γ-irradiation technique in the absence of any reducing agent or heat treatment. Silver nitrate and γ-irradiation were used as the silver precursor and physical reducing agent in MMT as a solid support. The MMT was suspended in the aqueous AgNO(3) solution, and after the absorption o...

Fish respire through gills, which have evolved to extract aqueous oxygen. Fish gills consist of filaments with well-ordered lamellar structures, which play a role in maximizing oxygen diffusion. It is interesting that when we anatomically observe the gills of various fish species, gill interlamellar distances (d) vary little among them, despite large variations in body mass (Mb). Noting that th...

In this work the effect of cooling rate on dual-phase (L12/B2) AlCoCrFeNi2.1 Eutectic High-Entropy Alloy was investigated. powders were made using a drop-tube facility, achieving sizes ranging from 850 µm ? d < 1000–38 53 with corresponding estimated rates 114 Ks?1 to 1.75×106 K s?1 respectively. Average interlamellar spacing decreases 2.10 in as-cast alloy 348 nm 38 size fraction. Although dec...

Three new parakalummid mites of the subgenus Neoribates (Neoribates), N. (N.) parabulanovae sp. n., N. (N.) paramacrosacculatus sp. n. and N. (N.) pararotundus sp. n., are described from Nepalese soils. Neoribates (Neoribates) parabulanovae sp. n. is morphologically most similar to N. (N.) bulanovae Grishina, 2009, N. (N.) rotundus Aoki, 1982 and N. (N.) setiger Balogh & Mahunka, 1978, however,...

A coupled thermal-microstructural simulation model was developed to estimate the thermal history in a eutectoid steel wire rod under continuous cooling and forced-convection. The phenomena of heat transfer, phase transformation estimation boundary condition. histories were analyzed at different rates emulate forced-convection conditions by air-jet as controlled conveyor. acquired used calculate...