Stellar abundances and ages afford the means to link chemical enrichment galactic formation. In Milky Way, individual element show tight correlations with age, which vary in slope across ([Fe/H]-[$\alpha$/Fe]). Here, we step from characterising as measures of understanding how trace properties stellar birth-environment disk over time. Using measurements $\sim$27,000 APOGEE stars (R=22,500, SNR$...

gelatin is a protein hydrocolloid. because of its unique characteristics such as gel forming, thickening, stabilizing, emulsifiing, foam and film forming, is widely used in food industries. in this research, in order to optimize the factors which affect enzymatic extraction method of gelatin ,the effects of three variables, enzyme concentrations(2-10 ppm), time(8-16 hours) and temperature(60-80...

Electromagnetic power, which is one of the fast ways for forming, is used for forming workpieces without having any effect on them. Using it causes the workpieces to reach the minimum back spring and tear; consequently building the equipment like pistons will cost less than before. Electromagnetic power is used for forming Aluminium sheets into V shapes in this study. As the coils connect the m...

Abstract A test bed for the evaluation of novel control methods inverters renewable power generation is presented. The behavior grid-following and grid-forming in a scenario studied compared. Using real-time capable platform with cycle time 50 µs, developed Matlab/Simulink can be implemented. For simplicity, three-phase 4‑quadrant voltage amplifier used instead an inverter. Thus, use modulation...

in this study, doxycycline hyclate release behavior from in situ forming drug delivery systems investigated. these systems based on poly()lactide-co-glycolide)(50:50 dissolved in n-methyl-2-pyrrolidone that were evaluated in different concentrations. these systems are useful for local treatment of periodontal diseases. uv spectroscopy is used to determine drug concentration in release medium. a...

Metal forming processes, compared with machining ones, reduce production steps and increase manufacturing speed in addition to saving raw material. In this paper, forming process of column of a steering mechanism is investigated by finite element analyses and experimental tests; and optimum die design parameters are found. Forming process parameters including die opening angle, bearing length, ...