نتایج جستجو برای: farur island
تعداد نتایج: 56123 فیلتر نتایج به سال:
We examine the island size distribution function and spatial correlation function of a model for island growth in the submonolayer regime in both 1 and 2 dimensions. In our model the islands do not grow in shape, and a fixed number of adatoms are added, nucleate, and are trapped at islands as they diffuse. We study the cases of various critical island sizes i for nucleation as a function of ini...
We investigated the magnetoresistance of Permalloy (Ni80Fe20) films with thicknesses ranging from a single monolayer to 12 nm, grown on Al2O3, MgO and SiO2 substrates. Growth and transport measurements were carried out at 80K in UHV. Applying in-plane magnetic vector fields up to 100mT, the magnetotransport properties were ascertained during growth. With increasing thickness the films exhibited...
We examined the role played by temperature in the duration of incubation and sex ratio of green turtle hatchlings at Ascension Island, one of the most important green turtle rookeries in the Atlantic. Temperature at control sites at nest depth and in 39 green turtle nests was measured using small temperature recording devices. The sex ratio of hatchlings was ascertained in a sub-sample of monit...
In this paper, we explore the effects of misfit strain fields on both heterogeneous nucleation behavior and anisotropic growth of islands at submonolayer coverages and compositional patterning at complete monolayer coverage via simulations of a phase-field crystal model. In particular, deposition on top of a herringbone structure and quasicrystalline (QC) substrate are considered, the former re...
Perforator flaps have been introduced for coverage of local and distant defects. Various designs of this flap are possible, but their role in the setting of trauma is debated. We report that it is possible to raise these flaps in cases of post-traumatic lower limb reconstruction with good results. Consideration must be given to the type of movement that is planned vis-a-vis the number of perfor...
Silvio Berlusconi has dominated Italian political life since he was first elected prime minister in 1994. He has been the third longest-serving prime minister of Italy, after Benito Mussolini and Giovanni Giolitti, and, as of May 2011, he was the longest-serving current leader of a G8 country. This political longevity is often difficult to understand for foreign political analysts. The former I...
We show that low area density Ge/Si(100) island ensembles comprised solely of hut and pyramid clusters do not undergo Ostwald ripening during days-long growth temperature anneals. In contrast, a very low density of large, low chemical potential Ge islands reduce the supersaturation causing the huts and pyramids to ripen. By assuming that huts lengthen by adding single {105} planes that grow fro...
The scaling of the monomer and island densities, island-size distribution sISDd, capture-number distribution sCNDd, and capture-zone distribution is studied as a function of the fraction of occupied sites scoveraged and ratio D /F of the monomer hopping rate D to the sper sited monomer creation rate F in a three-dimensional s3Dd point-island model of irreversible nucleation and island growth. O...
A scanning transmission electron microscope (STEM) is used to examine the structural and chemical quality of the interface between thin films of YBa2Cu3O72d (YBCO) and BaF2. The STEM images indicate that it is possible to grow a uniform thin film of BaF2 that is relatively free of gross defects via a thermal evaporation method on top of a YBCO thin film. The diffraction contrast results also su...
The earliest comprehensive work on the geological formations in this county was done by Carl Rominger. He published his findings in volume 1 of the Geological Survey of Michigan in 1873. It appears from a careful reading of this report that Rominger visited practically every one of the isolated outcrops on the mainland portion of the county, and a good many of those located on the islands which...
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