Results 141 to 150 of about 667,402 (394)
Frontiers in Environmental ScienceChromium (Cr) contamination of soil threatens environmental and human health, necessitating effective and sustainable remediation solutions. Here we explored the impact of rice husk biochar (RH-BC), nano-RH-BC, vermicompost, nano-zero valent zinc (nZVZn),
Amna Zulfqar +6 more
doaj +1 more source
Theoretical estimates for proton-NMR spin-lattice relaxation rates of heterometallic spin rings
, 2005 Heterometallic molecular chromium wheels are fascinating new magnetic materials. We reexamine the available experimental susceptibility data on MCr7 wheels in terms of a simple isotropic Heisenberg Hamiltonian for M=Fe, Ni, Cu, and Zn and find in that ...
Allalen, M., Schnack, J.
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Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6
Advanced Engineering Materials, EarlyView.The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter +4 more
wiley +1 more source
Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings
Advanced Engineering Materials, EarlyView.Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira +8 more
wiley +1 more source
MoleculesThis work examines the influence of metal loading and the Ni/Cr ratio of Ni-Cr/SBA-15 catalysts on bioethanol steam reforming for the first time.
Pedro J. Megía +4 more
doaj +1 more source
Small Businesses, Public Health, and Scientific Integrity [PDF]
, 2013 This report examines the activities of an independent office within the Small Business Administration: the Office of Advocacy. The Office of Advocacy has responsibility for ensuring that federal agencies evaluate the small business impacts of the rules ...
Katie Greenhaw +2 more
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Advanced Engineering Materials, EarlyView.This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim +4 more
wiley +1 more source
Acta Agriculturae SlovenicaThis study aimed to determine the levels of Cd, Cr and Pb in basil (Ocimum basilicum L.) cultivated on artificially contaminated substrates and to assess their potential harmful effects on human health via the calculation of the target hazard quotients (
Senad MURTIĆ +7 more
doaj +1 more source
Journal of Applied Animal Research, 2018 Based on a 2 × 2 × 2 factorial, the effects of three dietary supplemental including chromium methionine (Cr) (0 and 400 μg/kg diet), zinc oxide (Zn) (0 and 30 mg/kg diet), and vitamin C (VitC) (0 and 250 mg/kg diet) on egg production (EP) and mass (EM ...
Mozhdeh Karami +2 more
doaj +1 more source
Oxidation behavior of Co-25Cr and Co-35Cr alloys Topical report, 1 Nov. 1967 - 31 Mar. 1968 [PDF]
Oxidation characteristics of cobalt-chromium base ...
Hed, A. Z., Kofstad, P.
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