We determine the equilibrium morphology of a strained solid lm for the case where it wets the substrate (Stranski-Krastanow growth). Using a continuum elasticity model with isotropic surface energy and equal elastic constants in the lm and substrate, we calculate an asymptotic solution for the axisymmetric three-dimensional equilibrium shape of a small island, where the height is much less than...

The equilibrium shape and chemical potential of an array of island ridges in an epitaxially strained solid film are determined from a continuum model describing the Stranski–Krastonow morphology of a thin layer on a substrate. This model incorporates the conditions for mechanical and chemical equilibrium, isotropic surface energy, and misfit strain. Solutions corresponding to periodic arrays of...

When the diminutive skeleton of Homo floresiensis was found on the Indonesian island of Flores, it was interpreted as an island dwarf, conforming to the 'island rule' that large animals evolve smaller size on islands, but small animals tend to get larger. However, previous studies of the island rule have not included primates, so the extent to which insular primate populations undergo size chan...

During the Nauru99 field experiment (held during June and July of 1999); the presence of an island effect on the cloud and radiation measurements recorded from the Atmospheric Radiation Cloud Station (ARCS) site at Nauru was identified. The island cloud effect occurs when moist air is advected over the island and the diurnal heating of the island (relative to the surrounding ocean) induces conv...

1The Feinstein Institute for Medical Research, North Shore–Long Island Jewish Health System, Manhasset, NY; 2Department of Haemato-Oncology, King’s College London, London, United Kingdom; 3Department of Medicine, North Shore University Hospital, North Shore–Long Island Jewish Health System, Manhasset, NY; 4Department of Medicine, Hofstra North Shore–Long Island Jewish School of Medicine, Hempst...

Parallel Genetic Algorithms have often been reported to yield better performance than Genetic Algorithms which use a single large panmictic population. In the case of the Island Model Genetic Algorithm , it has been informally argued that having multiple subpopulations helps to preserve genetic diversity, since each island can potentially follow a diierent search trajectory through the search s...

abstract: in this paper a control scheme for grid-connected operation mode and the island state of distributed generation is presented. in normal conditions, every inverter dg system in micro-grids to supply a preset power, normally operate in a constant current control mode. when micro-grids removed from the network, dg inverter of each system must recognize the island and change position to v...

The island of Tasmania is heart-shaped in outline, and has an area of 26,215 square miles and a population of 227,599. The capital-Hobart-which is in the south of the island, has a population of 60,406 and a surrounding urban population of about 50,000. In the north of the island are roughly another 110,000 people-32,841 of whom live in the city of Launceston, the chief civic centre of that par...

a Department of Neuroscience, Brown Medical School and The Brain Science Program, Brown University, Providence, Rhode Island 02912 (USA) b Division of Engineering, Brown Medical School and The Brain Science Program, Brown University, Providence, Rhode Island 02912 (USA) c Department of Clinical Neuroscience, Brown Medical School and The Brain Science Program, Brown University, Providence, Rhode...