A series of nickel catalysts i.e. nickel sulfide (NiS), nickel phosphide (NiP) and nickel carbide (NiC) was investigated for hydrotreating of spent coffee oil to produce bio-hydrotreated fuel (BHF). Catalytic tests were carried out at 375–425 °C and 20–40 bar of initial H2 pressure (before he...

IN718C alloy and MC carbide reinforced IN718C composites (MC/IN718C) were prepared by casting. Creep behaviors of the two materials were studied. The steady-state creep rate of the MC/IN718C composite at 704 °C under 620 MPa was reduced by an order of magnitude. The higher creep resistance for ...

Dry reforming is a promising reaction to utilise the greenhouse gases CO2 and CH4. Nickel-based catalysts are the most popular catalysts for the reaction, and the coke formation on the catalysts is the main obstacle to the commercialisation of dry reforming. In this study, the whole reaction net...

In the present work, nickel carbide-promoted nickel/carbon nanofibers nanocomposite catalysts (NiC-Ni/CNFs) were directly in situ generated by a facile catalytic chemical vapor deposition (CCVD). The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), tra...

The stratum corneum, that consists of flat and cornified cells, is a major barrier that impedes the penetration of active ingredients of cosmetics/cosmeceuticals through the skin. Various types of penetration promoters, in which a small amount of active substance is closed, have been developed a...

Thirteen alloys including high- and low-strength nickel-base alloys, austenitic stainless steels, and ferritic alloys were irradiated using 2 MeV protons to a damage level of 2.5 dpa at 360 °C and assessed for their susceptibility to irradiation assisted stress corrosion cracking (IASCC) in bot...

The effects of Cu/Fe ratio on structure of attapulgite (ATP) supported CuFeCo-based catalysts were detected by N2 physical adsorption/desorption, XRD, H2-TPR, FE-SEM, TEM, XPS etc.. And the effect on the catalytic performance for mixed alcohols synthesis (MAS) from syngas was evaluated with a co...

The review describes the physical and chemical phenomena occurring between solid ceramics used as reinforcement and liquid metals and alloys used as matrix in the composite coatings. Initially, the properties of typical matrix metals as Ni, Co, Fe and alloys as Ni-based (NiCr, NiAl, NiCrAlY,…) ...

Single-beam, dual-beam and sequential iron- and/or helium-ion irradiations are widely accepted to emulate more application-relevant but hardly accessible irradiation conditions of generation-IV fission and fusion candidate materials for certain purposes such as material pre-selection, identifica...

In the present paper, the complete ternary B–Fe–Ti system is thermodynamically modelled based on our own experimental results and information reported in literature. Series of key experiments were performed for the binary Fe-B, Fe-Ti and the ternary B-Fe-Ti systems in order to obtain parameter...

High-entropy alloys (HEAs), also known as multi-principal element alloys or multi-component alloys, have been the subject of numerous investigations since they were first described in 2004. The earliest HEA was the equiatomic CrMnFeCoNi “Cantor” alloy, but HEAs now encompass a broad class of m...

With the advent of high performance permanent magnets based on the rare-earth (RE) elements such as Sm-Co, Nd-Fe-B alloys in 1980s, the application areas have been extended from the electronics to hybrid electric vehicles and wind turbines etc. However, the advantages of these RE based magnets m...

Iron-rich compounds with the tetragonal ThMn12-type structure have the potential to meet current demands for rare-earth-lean permanent magnets with high energy density and operating temperatures of 150–200 °C. However, while it is normal for magnet technology to lag behind the development of u...

Thermal management technology based on the magnetocaloric effect offers several advantages over conventional gas compression cooling. The efficiency of magnetic cooling systems can be much higher than conventional gas based cooling technologies. Additionally, ozone layer depleting chemicals are ...

The invention of bulk metallic glasses has stimulated extensive interest, due to their possible technological applications in a variety of industrial fields and their scientific importance in understanding related condensed matter physics. Among all types of BMGs, Fe-based BMGs are a unique yet ...

Ethnopharmacological relevanceIridoid glycosides have been associated with decreased risks of cancer, such as hepatocarcinoma. Although Picrorrhiza kurroa has shown activity against hepatocarcinogenesis, its mechanism of action is poorly understood, further the anticancer activity of iridoid gly...

Picrosides I and II are the active chemical constituents, present in the roots and rhizomes of Picrorhiza kurroa Royle (family: Scrophulariaceae). The plant is ethnomedically claimed for the treatment of liver and upper respiratory tract infection, fever, dyspepsia and scorpion sting. This study...

A radiometric method for the assay of ganglioside sialidase in cultured human fibroblasts was set up. As substrate, highly radioactive (1.28 Ci/mmol) ganglioside GD1a isotopically tritium-labeled at carbon C-3 of the long chain base was employed; the liberated, and TLC separated [3H]GM1 was dete...

Systematic synthesis and myelin-associated glycoprotein (MAG)-binding activity of novel sulfated GM1b analogues structurally related to Chol-1 (α-series) gangliosides, high-affinity ligands for neural siglecs, are described. The suitably protected gangliotriose derivatives, 2-(trimethylsilyl)et...

The structural characterization of intact polysialogangliosides by electrospray-ionization mass spectrometry (ESIMS) and tandem mass spectrometry (MS/MS) is described. The negative-ion ESI mass spectra of gangliosides1, such as a tetrasialoganglioside GQ1b, showed molecularly related ions2 with ...