In the said treatise Archimedes determines the equilibrium positions of a floating paraboloid segment, but only in the case when the basis of the segment is either completely outside of the fluid or completely submerged. Here we give a mathematical model for the remaining case, i.e., two simple conditions which describe the equilibria in closed form. We provide tools for finding all equilibria ...

We report measurements on single electron memory devices where the memory island, a floating gate, is charged through aluminum oxide tunnel barriers, fabricated through plasma oxidation of aluminum and atomic layer deposition (ALD) of aluminum oxide. These devices are characterized at 300 mK and show a definite threshold for tunneling through the oxide barriers indicating a potential for nonvol...

Green pea (Pisum sativum L. var. Alaska) stem segments that were aged in buffer responded differently after aging depending on whether they were floating or submerged, or bubbled with air or N(2). Segments aged anaerobically for only 1 to 2 hours at 23 C responded to subsequent aerobic conditions by elongating more rapidly than aerobically aged sections. Longer periods of anaerobic treatment (u...

In aquaculture, new production technologies are under development and testing. One promising type of technology is the closed floating cage. Egget® one these newly developed technologies, which egg-shaped vertically floating. challenges to determine hydrodynamic loads. Therefore, this study focuses on estimating resistance coefficient for steady flow with various velocities Reynolds numbers a s...

Size-dependent photoluminescence characteristics from Ge nanocrystals embedded in different oxide matrices have been studied to demonstrate the light emission in the visible wavelength from quantum-confined charge carriers. On the other hand, the energy transfer mechanism between Er ions and Ge nanocrystals has been exploited to exhibit the emission in the optical fiber communication wavelength...

C4 photosynthesis without Kranz anatomy (single-cell C4 photosynthesis) occurs in only 0.003% of known species of C4 flowering plants. To add insight into the evolution of C4 photosynthesis, we studied the tribe Orcuttieae (Poaceae: Chloridoideae), which has species that can grow under both aquatic and terrestrial conditions, and utilize single-cell C4 photosynthesis when growing submerged. Car...