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Showing 1 to 20 of 4619 for “"Barrier"”.
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Unipolar barrier strained layer superlattice infrared photodiodes : physics and barrier engineering
… physical understating, and heterojunction barrier engineering of T2SL, in midwave infrared (MWIR, 3-5\uf06dm) and longwave infrared (LWIR, 8-12\uf06dm) regimes. The bandstructure of InAs/GaSb/AlSb superlattices has been simulated in this work using empirical pseudopotential method. The …
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Barrier island groundwater dynamics
Nearly 1.5 million people inhabit barrier islands along the U.S. Atlantic and Gulf Coasts and coastal groundwater dynamics influence the availability of freshwater, ecosystem health, pollutant transport, and flooding in these densely populated communities. However, groundwater dynamics, including …
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Diamond Schottky barrier diodes
Research on wide band gap semiconductors suitable for power electronic devices has spread rapidly in the last decade. The remarkable results exhibited by silicon carbide (SiC) Schottky batTier diodes (SBDs), commercially available since 2001, showed the potential of wide band gap semiconductors for …
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Barrier Island Groundwater Dynamics
Nearly 1.5 million people inhabit barrier islands along the U.S. Atlantic and Gulf Coasts and coastal groundwater dynamics influence the availability of freshwater, ecosystem health, pollutant transport, and flooding in these densely populated communities. However, groundwater dynamics, including …
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Barrier Studies by Microwave Spectroscopy
Made available in DSpace on 2014-12-10T23:01:00Z (GMT). No. of bitstreams: 1 7114799.pdf: 2599480 bytes, checksum: 98c84e015b62864c12b505aeb63b399d (MD5) Previous issue date: 1970
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The street - a social barrier
Thesis (M.C.P.) Massachusetts Institute of Technology. Dept. of Architecture, 1951.
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Barrier and Threshold in Architecture
This thesis explores the role of barrier and threshold as a form of differentiation between objects and situations. Building elements such as façade, structure, and space become the means by which to distinguish between separate parts, functions, and experiences. Sited in downtown Washington D.C. …
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Bondcoat developments for thermal barrier coatings
… an interest, over the last few years, in thermal barrier coatings (TBCs). TBCs are duplex coating systems consisting of a thin, insulating, ceramic layer over a metallic bondcoat. The bondcoat provides both environmental protection and the necessary adhesive interface to maintain the adherence of …
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Dynamic Responses at the Barrier Epithelium
… in which to examine this question. One of few barrier epithelia, the intestine is exposed to both the unique environment of the lumen and the internal environment of the organism. Cells of the intestine simultaneously function as barrier, digestive organ, and sensory organ. Additionally, in …
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On Barrier Graphs of Sensor Networks
… graph derived from this geometry, called the <em>barrier graph</em> of the network, which captures information about the network's coverage. Every such ray-barrier sensor network corresponds to a barrier graph, but not every graph is the barrier graph of some network.</p> <p>We show that any …
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GaInN/GaN Schottky Barrier Solar Cells
… demonstrated thus far. Nonetheless, a Schottky barrier design (to bypass the p-type doping issue) on single-crystal GaInN can be used to provide some insight into the future of amorphous and micro-crystalline GaInN Schottky barrier solar cells. Through demonstration of a functional single …
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Superreplication method for multi-asset barrier options.
The aim of this thesis is to study multi-asset barrier options, where the volatilities of the stocks are assumed to define a matrix-valued bounded stochastic process. The bounds on volatilities may represent, for instance, the extreme values of the volatilities of traded options. As the …
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Immune activation at the lung epithelial barrier
Dendritic cells (DCs) are commonly known as the most potent antigen presenting cells in several inflammatory diseases. In the lung the main function of DCs is to sample incoming antigens, transport them to the draining lymph nodes, where they will activate naïve T cells to become effector T cells …
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Skin barrier dysfunction in common genetic disorders
… of the skin is the formation of an effective barrier to prevent desiccation as well as to keep out foreign pathogens and allergens. This is a tightly regulated process and involves many structural proteins, lipids, enzymes and biochemical components. One of the proteins that has an …
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Role of pericytes in the barrier task
Abstract The function of endothelial-blood/tissue barrier is critical for maintaining and controlling tissue homeostasis. The blood-retinal barrier (BRB) is a blood-ocular barrier system, made up of an inner and an outer barrier. BRB is located in the retinal microvasculature and include the …
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Aniseikonia: A Potential Barrier To Neural Plasticity
Aims: Aniseikonia represents a potential barrier to neuroplasticity, which may limit visual outcomes in children with anisometropic amblyopia. Full refractive correction is the initial treatment for amblyopia, which corrects image focus, but image size differences are often neglected. We aimed to …
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Radiation effects on the blood-brain barrier
… An established assay utilizing blood-brain barrier disruption was adopted to quantify the radiation damage to the endothelial cells in female BALB/C mice, 8-12 weeks of age. A dye that attaches to the plasma proteins in the blood and that is ordinarily kept out of the brain by the …
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IDENTIFICATION AND CHARACTERIZATION OF THE 'GUT VASCULAR BARRIER'
… agents, the intestine has developed a number of barrier mechanisms to limit the entry of potential hazards. These include the physical barrier formed by the epithelial layer and the intestinal immune system that is important to induce either tolerance against food antigens and intestinal flora or …
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