نتایج جستجو برای: square domes
تعداد نتایج: 130242 فیلتر نتایج به سال:
Contrary to pyramids and domes, elongated huts on a Si(001) substrate are commonly considered as kinetically limited structures. In this work, however, based on detailed scanning tunneling microscopy observations of Ge huts growing on Si(001) at temperatures below 550 degrees C and finite element analysis, the possibility of an equilibrium-driven elongation is raised, where hut-preceding pits a...
For augmentation mastopexy, the authors use adjustable implants that are deflated at the end of the procedure and then inflated to the desired size 5 to 10 days postoperatively using external injection domes. Reported advantages, based on 175 cases, include increased perioperative safety for the nipple areolar complex, the ability to adjust for size and symmetry postoperatively with patient inp...
Peyer's patches (PPs) are collections of lymphoid follicles in the small intestine, responsible for scanning the intestinal content for foreign antigens such as soluble molecules, particulate matter as well as intact bacteria and viruses. The immune cells of the patch are separated from the intestinal lumen by a single layer of epithelial cells, the follicle-associated epithelium (FAE). This ep...
Helicobacter pylori colonizes the stomach at the interface between the mucus layer and the apical pole of gastric epithelial cells. A number of secreted and shed products from the bacteria, such as proteins and lipopolysaccharide, are likely to have a role in the pathogenesis at the epithelial level. To determine the physiological response of transporting polarized epithelia to released soluble...
BACKGROUND/OBJECTIVE The size-dependent mucosal immunoresponse against nanomaterials (nanoimmunoresponse) is an important approach for mucosal vaccination. In the present work, the size-dependent nanoimmunoresponse of mouse Peyer's patches (PPs) and immunoglobulin A (IgA) level was investigated using fluorescent thiol-organosilica particles. METHODS Various sizes of fluorescent thiol-organosi...
Oliverian Magma Series gneisses (442–454 Ma) in the cores of domes in southwestern New Hampshire have an igneous mineralogy that crystallized at pressures (P) of 9–11 kbar and temperatures (T) of 650–775 °C, whereas the cover (Ammonoosuc Volcanics) has the same formation age (453 ± 2 Ma) yet is clearly extrusive. A significant crustal section, ~30 km thick, must have originally separated the tw...
Ordering phenomena related to the self-assembly of InAs quantum dots (QD) grown on GaAs(001) substrates are experimentally investigated on different length scales. On the shortest length-scale studied here, we examine the QD morphology and observe two types of QD shapes, i.e., pyramids and domes. Pyramids are elongated along the [1–10] directions and are bounded by {137} facets, while domes hav...
The enhancement of light extraction efficiency for thin-film flip-chip (TFFC) InGaN quantum wells (QWs) light-emitting diodes (LEDs) with GaN micro-domes on n-GaN layer was studied. The light extraction efficiency of TFFC InGaN QWs LEDs with GaN micro-domes were calculated and compared to that of the conventional TFFC InGaN QWs LEDs with flat surface. The three dimensional finite difference tim...
The Utu Uli Hill, located on the northern Futuna Ridge in Lau Basin (Southwestern Pacific Ocean), displays recent volcanism a complex area, possibly boundary of one many intermediate platelets between and Australian plates or result progressive melting dismantling Vitiaz subduction slab. combination bathymetric, magnetic 3D reflection seismic data allows us to recognize describe several types s...
Abstract The research starts from an analogy found between two apparently very different structural solutions: the double spiral pattern of herringbone brick courses in domes built by Antonio da Sangallo Younger (1484-1546) during Renaissance, and particular a wooden floor ‘à la Serlio’, described Amand Rose Emy his Treatise at beginning 19 th century, made diagonal beams reciprocally sustained...
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