Exact(8)
The suspension was homogenized by sonication and placed in the dark environment with continuous vigorous stirring.
Briefly, under continuous vigorous stirring at room temperature, dilute ammonia solution (5.0 wt %) was added slowly into the mixed solution containing Al(NO3 3·9H2O and Ni(NO3 2·6H2O, in the similar stoichiometry to Ni(20 wt %)/Al2O3.
PVC powder (39 g) was suspended in 30 mL of tetrahydrofuran under 2 h of ultrasonic vibration; then, TNTs/GO (1 g) was dissolved in the suspension under 24 h of continuous vigorous stirring.
Only with the injection of 8 ml of 15N2 gas per liter of water and one hour of continuous, vigorous shaking, was near-complete equilibration achieved (97% of calculated concentration).
Continuous, vigorous shaking, as tested here (50 rpm; Fig. 2), is difficult to achieve in field experiments and may, in addition, be detrimental to some diazotrophs (e.g. Trichodesmium colonies).
The renewal of the water-bubble interface appears to have the greatest effect on the isotopic exchange, as continuous vigorous shaking of the incubation bottles generated the highest enrichment of 15N2 in the water phase.
Similar(51)
Women aged over 70 years who were insufficiently active or sedentary, i.e. no participation in moderate-intensity physical activity of at least 30 minutes at least 5 days per week or at least 20 minutes of continuous vigorous-intensity activity three or more times a week [ 14] were included in the study.
Under continuous and vigorous stirring, 15 g of potassium permanganate was added to the mixture.
Continuous and vigorous emission of fine ash, which was drifted to the east, was observed on the morning of 28 January (Figs. 3(B), and (C); phreatomagmatic event in Table 1).
Equipment developed in the 1970s and '80s could be operated from a distance with electronic viewfinders, allowing the camera to follow vigorous continuous action with an ease and intimacy that had previously been unknown, as in the precredit sequence of Raiders of the Lost Ark (1981).
It is reported that the current low-participation rate of general population in sports activities may be due, in part, to the misperception of many people that to reap health benefits they must engage in vigorous, continuous exercise [ 15].
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