We present a digital in-line holographic imaging system for measuring the size and three-dimensional position of fast-moving bubbles in air-water mixture flows. The captured holograms are numerically processed by performing a two-dimensional projection followed by local depth estimation to quickly and efficiently obtain the size and position information of multiple bubbles simultaneously. Statistical analysis on measured bubble size distributions shows that they follow lognormal or gamma distributions.
I. The action of chlorine on tungsten metal to form hexachloride is catalyzed to a remarkable degree by the presence of a small amount of platinum black.2. Tungsten forms the compound W~C11~.2HCl.gH~0, resembling the molybdenum derivative Mo3Cls.HC1.4Hz0, prepared by Rosenheim and Kohn.3. The alkaline solution of the preceding compound oxidizes readily and from the solution stable hydrates of trivalent and quadrivalent tungsten were obtained. PHILADELPHIA, PA.
Quantitative phase measurements are derived from the wavelength-dependent transport of intensity equation. A dispersive optical system is used with a Bayer-filtered detector and graphics processing units to record and calculate the phase in real-time.
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