Some New Diffraction Photographs

Some mechanisms of oceanic mixing revealed in aerial photographs

Estimates of circulation rates within the mixed layer of the ocean have been made based on aerial photographs of a variety of dye injections and floating cards in the surface and near-surface levels under different wind, sea state, and thermal profile conditions. The following are the main features derived from our studies of the circulation patterns in the mixing layer in the Bermuda area. (1)...

X-Ray Diffraction of Some Biphenylcyclohexanes (BCH's)

X-ray diffraction measurements have been made on BCH5C1, BCH5Br, BCH5CN, BCH52 and binary mixture of BCH5CN and BCH52, in the nematic phase. BCH5C1 and BCH5Br are thought to have a weak molecular correlation along the texture axis with repeat unit along that axis of ~ 1.1 molecular lengths. Whereas for BCH5CN the repeat unit along the texture axis is about 1.4 molecular lengths implying a stron...

Some Problems of Diffraction at High Energies

An interplay of perturbative and nonperturbative effects in pomeron, odderon and reggeons dynamics is discussed. It is pointed out that experimental data on pion charge exchange reaction at high energies indicate to a dominance of the nonperturbative string-like dynamics up to rather large momentum transfer. Role of shadowing effects related to triple pomeron interactions is investigated. 1 Per...

Diffraction of random tilings: some rigorous results

The diffraction of stochastic point sets, both Bernoulli and Markov, and of random tilings with crystallographic symmetries is investigated in rigorous terms. In particular, we derive the diffraction spectrum of 1D random tilings, of stochastic product tilings built from cuboids, and of planar random tilings based on solvable dimer models. This article also contains a summary of the measure the...

Photographs