Nanoclusters formed during natural aging cause the negative effect of the two-step aging in the age-hardenable Al-Mg-Si alloys. The relationship between the clustering behavior during natural aging and the two-step aging behavior was studied using the hardness, differential scanning calorimetry (DSC), electrical resistivity measurements, transmission electron microscopy (TEM) observation in the...

conclusions reported herbal drugs might be beneficial for further studies for the management of skin aging and aging process. results skin aging begins with whole body aging process and entire body gets cold and dry in elderly. wrinkle formation is highly associated with loss of “skin natural moisture”. in the management, specific food supplements, simple massage therapy as well as herbal drugs...

Many studies demonstrate changes in physiology, biochemistry, or behavior with age, but almost no studies demonstrate such changes being predictive of aging. We subsampled from 10 genetically distinct strains of Drosophila melanogaster as they aged, at three time points, measuring change over time of parameters related to water balance (water content, desiccation survival, and K(+), Mg(2+), and...

In order to accelerate the growth of interfacial intermetallic compound (IMC) layers in a soldering structure, Cu/SAC305/Cu was first ultrasonically spot soldered and then subjected to isothermal aging. Relatively short vibration times, i.e., 400 ms and 800 ms, were used for the ultrasonic soldering. The isothermal aging was conducted at 150 °C for 0, 120, 240, and 360 h. The evolution of micro...