نتایج جستجو برای: nickel phosphorus
تعداد نتایج: 75078 فیلتر نتایج به سال:
The study was carried out to evaluate the level of some mineral in Costus afer leaf and stem as it is been used recently use ethnomedicine for treatment diseases also consume vegetable by humans. composition were evaluated using a standard method AOAC, 2006. result revealed significant amount heavy metals order calcium (74.52 ± 0.01 mg/g) > magnesium (31.71 0.02 >sodium (22.33 >manganese (7.31 ...
Nickel-Phosphorus (Ni-P) composite coatings were prepared on a poplar veneer surface via a simple electroless nickel (Ni) approach. The substrate deformation, flatness, crystalline structure, and wear resistance of the NiP composite coatings were investigated. The deformation degree of the substrate decreased as the number of deposition steps was increased. The flatness and wear resistance of t...
Two new bidentate imidazolylphosphine P–N chelate ligands 2-(diisopropylphosphino-ethyl)1-methylimidazole (PN I ) and 2-(diphenylphosphino-ethyl)-1-methylimidazole (PN II ) have been synthesized in good yields by treating R2PCl (R = Pr i or Ph) with 1-methyl-2trimethylsilylethylimidazole. Various types of nickel(II), cobalt-(II) and -(III) complexes have been prepared with these two ligands and...
Nickel titanium (NiTi) shape memory alloy is a unique material displaying the shape memory effect and superelastic property making it attractive to the orthopedic field. However, with its high nickel content of∼50%, there is concern on health and safety when this material is implanted inside the human body for a prolonged period of time as toxic nickel ions may leach into the body due to corros...
On average, mineral elements account for 4 % of total body mass and part of every tissue, liquid, cell and organ in human body. There is a sufficient evidence that minerals, both independently or in proper balance with other minerals, have structural, biochemical and nutritional functions that are very important for overall human health, both mental and physical (Vahčić et al., 2010). Furthermo...
Integral nickel–phosphorus (NiP) resistors were fabricated on flexible polyimide (PI) substrates by electroless NiP deposition. The deposition process was first set up for standard rigid epoxy substrates and then modified for the flexible substrates. The effects of the PI surface modifications on the interfacial adhesion (NiP/PI) were measured experimentally by the pull-off method. The process ...
Treated municipal sewage sludge ("biosolids") and dairy cattle slurry (DCS) may be applied to agricultural land as an organic fertiliser. This study investigates losses of nutrients in runoff water (nitrogen (N) and phosphorus (P)), metals (copper (Cu), nickel (Ni), lead (Pb), zinc (Zn), cadmium (Cd), chromium (Cr)), and microbial indicators of pollution (total and faecal coliforms) arising fro...
the paper demonstrates the result of changes in the physicochemical and biological properties in soil as a result of the operation of illegal dumping sites. soil was sampled from the research points located on the outskirts of the city of bydgoszcz (poland) from the site not affected by illegal dumping sites (control c), within the dumping sites, having removed the waste layer (w), and 10 m awa...
Phosphorus is ubiquitous in planet Earth and plays a fundamental role all living systems. Finding reasonable prebiotic source of phosphorus not trivial, as common sources where it present nowadays are the form phosphate minerals, which rather insoluble nonreactive materials, making unavailable for ready incorporation organisms. A possible from exogenous meteoritic bombardment and, particular, i...
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