The maximum shear strain distribution was obtained from the results of the finite element analysis. The observed shear bands were compared with the calculated maximum shear strain corresponding to the excavation stage of the experiment, and the effectiveness of this finite element method was evaluated....
This invention relates to catalytic materials used for reforming naphtha feeds more selectively towards aromatics by tuning the material acidity. In one embodiment, the catalytic material comprises a refractory aluminum oxide support, a metal from the platinum group, tin, a halogen element and wppm ...
Figure 5. Voltage v and power density q of a single fuel cell typical element versus its current density j. The voltage varies from about 1 V to about 0.5 V when the power increases from zero to its maximum value. Thus, there is only one operating point at which the fuel cell produc...
Usually, chlorosis of young leaves and the appearance of dark spots on mature leaves are mentioned as toxicity symptoms of excess Mn [31], which is related to the fact that Mn is a relatively immobile element [56]. However, only black spots were seen in the case of H. maximum (Figure ...
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During the AHP, the Lake Turkana water table was +100 m higher due to increased precipitation and inflow from paleo-lake Chew Bahir (and lakes Abaya and Chamo) as well as lakes Nakuru-Elementeita, Baringo-Bogoria and Suguta from the Kenyan plateau [13]. Today’s climate in the BRZ ...
Let us assume that we extract a sample S N of size N from a random variable X that follows a PDF f ( x ; θ 1 , θ 2 ) , and let us denote by Y the number of sample elements inside the interval [L, U] and by p the probability that an element x i ∈ S N of this sam...
Let us assume that we extract a sample S N of size N from a random variable X that follows a PDF f ( x ; θ 1 , θ 2 ) , and let us denote by Y the number of sample elements inside the interval [L, U] and by p the probability that an element x i ∈ S N of this sam...
In this study, a three-stage anaerobic sequencing batch reactor (ASBR) system treating ethanol wastewater under a mesophilic temperature was operated at different COD loading rates to produce both H2 and CH4 with an emphasis on maximum CH4 production. The pH of the first bioreactor was controlled...