EKHOLM et al. (1962) and HERMAN et al. (1964) observed occasional circular formations which have an inner structure composed of one central and seven marginal annuli in glandular lumina and ductal lumina of rat pancreas. WINBORN (1963) also found the same structures in the glandular and in the intercalary ductal lumina of the Saimili monkey pancreas, and they thought these circular formations r...

Planar chiral metamaterials comprising double-layer dielectricmetal- dielectric resonant structures in the shape of a gammadion are presented in the near-infrared regime. The unit cell of the doubly-periodic metamaterial design is optimized using the genetic algorithm for maximum circular dichroism and for maximum optical activity. A circular dichroism value in excess of 50% is predicted for th...

abstract weirs are the most common structures for discharge measurement in engineering research. streamline curvature, non hydrostatic pressure distribution on weir and nappe adherence to the weir lead to differences between calculated and measured discharges. thus discharge coefficient, which is the ratio of real and theoretic discharges, is usually less than unity. in circular weirs the press...

thin-walled hollow steel columns, either circular or box shaped, are commonly used as piers in bridges. recent earthquakes, e.g. hyogoken-nanbu or kobe 1995, on the other hand have shown that these columns are vulnerable to damage when subjected to earthquake loading. this paper presents a new innovative thin-walled hollow steel column fabricated of corrugated plates, “thin-walled steel columns...

This paper presents a static pointer analysis technique for a subset of C. The tool supports user-defined assertions inserted in the body of the program. Assertions are of two kinds: static assertions automatically verified by the analyser, and hypothetical assertions treated as assumptions by the analyser. The technique deals with recursive data structures and it is accurate enough to handle c...

Dimers of appropriately arranged anion-responsive π-conjugated moieties form helical structures by interaction with chiral anions. Terphenyl-bridged dimers of dipyrrolyldiketone boron complexes show chirality induced by binding l-amino acid anions, as observed by circular dichroism (CD) and circularly polarized luminescence (CPL). The preferred configurations of helical structures depend on the...