نتایج جستجو برای: molybdenum alloy

تعداد نتایج: 65526  

Journal: :Vojnosanitetski pregled 2013
Miodrag Sćepanović Ljiljana Tihacek-Sojić Milan Tasić Radivoje Mitrović Aleksandar Todorović Branka Trifković

BACKGROUND/AIM Retentive force of removable partial denture (RPD) directly depends on elastic force of stretched retentive clasp arms (RCAs). During deflection RCA must have even stress distribution. Safety factor is the concept which can be applied in estimating durability and functionality of RCAs. This study was based on analyzing properties of clasps designed by conventional clasp wax profi...

Journal: :The Journal of nutritional biochemistry 2004
Judith R Turnlund William R Keyes

The relationship between plasma molybdenum (Mo) and dietary intake has not been investigated in humans. We developed an isotope dilution method to determine molybdenum in 0.5 mL blood plasma by ICP-MS and conducted a study to determine the effect of dietary intake on plasma molybdenum. Twelve young men consumed a very low Mo diet (22 microg/day) for 24 days while confined to the WHNRC metabolic...

Journal: :Metals 2021

Uranium-Molybdenum alloy has been a promising option in the production of metallic nuclear fuels, where introduction Molybdenum enhances mechanical properties, corrosion resistance, and dimensional stability fuel components. Meanwhile, few potential options for molecular dynamics simulations U its alloys have reported due to difficulty description directional effects within atomic interactions,...

Journal: :Materials Science in Semiconductor Processing 2021

Polycrystalline thin films of molybdenum-doped rhenium disulphide (Mo-doped ReS2) alloys were synthesised by aerosol-assisted chemical vapour deposition (AACVD) using precursor solutions containing (1) [Re(S2CC6H5)(S3CC6H5)2], and (2) [Mo(S2CNEt2)4]. Synthesised characterised powder X-Ray diffraction (p-XRD), Raman spectroscopy, scanning electron microscope (SEM), transmission (TEM), inductivel...

Journal: :Epj Web of Conferences 2021

The study has established that reactor radiation leads to a significant increase of interdiffusion coefficients in Mo - W alloy compared thermally activated diffusion at temperatures ~1500°С. Furthermore, weakening their concentration dependence is observed. approximation procedure developed this work allowed approximating experimental data for each sample using variation only one parameter. It...

Journal: :The Journal of biological chemistry 1984
L P Solomonson M J Barber W D Howard J L Johnson K V Rajagopalan

The assimilatory nitrate reductase from Chlorella contains flavin, heme, and molybdenum as prosthetic groups. The molybdenum in assimilatory nitrate reductase is associated with a pterin moiety (molybdopterin) as evidenced by the ability of the enzyme to donate active molybdenum cofactor to the Neurospora nitrate reductase mutant nit-1 and by the oxidative conversion of the pterin to two well c...

2001
William D. Howard

The assimilatory nitrate reductase from Chlorella contains flavin, heme, and molybdenum as prosthetic groups. The molybdenum in assimilatory nitrate reductase is associated with a pterin moiety (molybdopterin) as evidenced by the ability of the enzyme to donate active molybdenum cofactor to the Neurospora nitrate reductase mutant nit-1 and by the oxidative conversion of the pterin to two well c...

2008
A. Nowotnik

Purpose: A study on the hot deformation behaviour and dynamic structural processes (dynamic precipitation operating during deformation at elevated temperatures) of nickel based superalloy was presented. Design/methodology/approach: Compression tests were carried out on precipitations hardenable nickel based superalloy of Inconel 718 at constant true strain rates of 10-4, 4x10-4s-1 within a temp...

1999
Sia Nemat-Nasser Weiguo Guo Mingqi Liu

Molybdenum (Mo), a bcc metal with a melting point of 2,610°C and a density of 10.22 g/cm, is an important refractory metal. The refractory properties of molybdenum reflect the high strength of interatomic bonding resulting from the overlap of the 4d-orbitals and the number of bonding electrons available (1). The melting point of molybdenum is exceeded only by those of tungsten and tantalum, amo...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Jose A Hernandez Leonardo Curatti Constantino P Aznar Zinaida Perova R David Britt Luis M Rubio

The molybdenum nitrogenase, present in a diverse group of bacteria and archea, is the major contributor to biological nitrogen fixation. The nitrogenase active site contains an iron-molybdenum cofactor (FeMo-co) composed of 7Fe, 9S, 1Mo, one unidentified light atom, and homocitrate. The nifQ gene was known to be involved in the incorporation of molybdenum into nitrogenase. Here we show direct b...

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