This research includes available techniques and simplified methods to estimate and classify the quality of hardness for different water supply sources like sea water, various wells (Fayda, khabyar, jumbyar) and tap water of Basrah ,Mosul, Duhok and Baghdad, by using prepared soap solution from di...
One of the factors having the most influence on the toxicity of cadmium seems to be the hardness of fresh water or the salinity of sea water. The influence of cadmium on the development of eggs of the fresh-water fish, Oryzias latipes, was observed in a previous investigation and it was ...
The present study investigated several properties such as friction, hardness, penetration work, and cutting forces in soaps formulated with apple and carrot pomace at varying concentrations of 5%, 10%, and 15%. To gain insights into the molecular-level alterations within the formulated soap samples...
Conventional water chemistry parameters such as hardness, alkalinity, and organic carbon are known to affect the acutely lethal toxicity of copper to fish and other aquatic organisms. In the present study, we investigate the influence of these water chemistry parameters on short-term (3 h), sublet...
[246] Yang J, Kong L, Ye H. Surface hardness determination of laser cladding using laser-induced breakdown spectroscopy and machine learning (PLSR, CNN, ResNet, andDRSN). Applied Optics, 2024, 63(10), 2509-2517. [247] Yin J, Wen S, Zhang C, et al. Radar sequence HRRP target recogn...
The hardness of water is due to the presence of the calcium and magnesium ions containing minerals that are naturally present in the water. Hard water is formed when water is got mixed with the limestone and chalk which are highly enriched with calcium and magnesium carbonates and bi-carbonates...
The peak-aged condition is attained after the aging at 250 °C for 1800 s of both homogenized sheets, while the Y-containing sheet shows a higher hardness than the Mg–1Al–0.7Ca sheet. TEM analysis and thermodynamic calculation show the formation of metastable precipitates composed of Al, ...
TEST COMPOSITION FOR THE DETERMINATION OF THE TOTAL HARDNESS OF WATERERDESZ,SANDORNE,HU
Hence, the indentation depth curve can be obtained and the modulus of the elasticity and hardness of the hydration products can be calculated. Based on the above principles, the micron indentation tests were conducted on the cubic samples and cylindrical samples (three samples were selected in ...
The results showed that improving the speed and diameter of the firing pin, increasing the number of shot blasting, and reducing the shot peening distance were conducive to improving the chordal deformation as well as obtaining greater surface hardness and residual pressure stress. While these new ...