Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Artificial aging"”.
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PHYSIOLOGICAL CHARACTERIZATION ON SEED AGING OF SIX NATIVE SHRUB SPECIES
… analyze physiological changes during storage and artificial aging processes. The shrub seeds were studied for one year during storage under eight different combinations of temperature (-20, 4, 22.5 °C), atmosphere (Air / N2) and relative humidity (RH; 7-8 % / 3-4 %). No significant differences …
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Exploration of a new manufacturing process for improving mechanical properties in a hot extruded Al-Mg-Si alloy
… by rolling or extrusion of billets, followed by artificial aging for strengthening. In conventional processing routes, billets are produced by casting prior to subsequent deformation. However, the cooling rates during casting and homogenization treatment processes are relatively slow. Such slow …
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Microplastics as Contaminant Vectors: Influencing the Bioaccessibility of Naphthalene from Freshwater
… based extraction test (PBET). The effects of aging of MPs on the sorption of naphthalene was also investigated. The sorption kinetics of naphthalene onto MPs followed a pseudo second order model, with external mass transport as the rate-controlling step. Sorption was dominated by a hydrophobic …
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Impedance spectroscopy response of aluminum-copper-silicon alloys
… investigated in both the solution-treated and artificially aged conditions. The solution-treatment procedure involved heating the alloys to 550$\sp\circ$C for 30 minutes and subsequently water-quenching. Artificial aging was carried out at 250$\sp\circ$C. Increased aging times of 1, 2, 8 and 32 …
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A simple and effective model to study insulin resistance in obesity and diabetes and the processes and mechanisms of in vitro aging using lymphocyte culture
… (obesity/diabetes) as well as the process of aging of cells from the immune system. Our results indicate that metabolic differences can be observed in lymphocytes from obese subjects and that different degrees of alteration in response can be detected between obese nondiabetic and diabetic …