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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 365 for “"B2"”.
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Atomistic simulation of dislocation core structures in B2 NiAl
… of (100), (110), and (111) dislocations in B2 NiAI has been conducted using atomistic simulations with an embedded atom method (EAM) potential. New flexible boundary conditions and a new method of graphic representation of dislocation core structure have been employed. The main findings are …
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Planar fault energies and dislocation core spreadings in B2 NiAl
The lack of ductility of the B2 NiAl alloy stands in the way of promising applications. In an effort to understand the dislocation behavior, computer simulation of the planar faults involved in the core spreadings of <100> and <111> dislocations was carried out. Seven γ-surfaces were computed for …
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Simulation of Bulk and Grain Boundary Diffusion in B2 NiAl
… simulations of the diffusion process in ordered B2 compounds at high temperature were performed using an embedded atom interatomic potential developed to fit NiAl properties. Diffusion in the bulk occurs through a variety of cyclic mechanisms that accomplish the motion of the vacancy through …
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Computer simulation study of grain boundary structure in B2 NiAl
In an effort to understand intrinsic grain boundary brittleness, computer simulation of grain boundary structures in ordered NiAl was carried out. The considered boundaries were boundaries of low reciprocal coincident site density Σ. The structural unit model was used to obtain a general picture of …
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Visualization and simulation of defect structures in the B2 phase of NiAl
… methods were applied to data from simulations of B2 NiAl to study extended dislocation cores and how these cores react to nearby point defects and applied stress. Such images may be viewed as a series of images forming an animation such that a simulated quantity, such as applied stress, is cast …
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Investigation of the beta 2 adrenergic receptor (B2-AR) pathway in canine hemangiosarcoma
Canine hemangiosarcoma is a highly metastatic cancer arising from vascular endothelial cells. It is one of the most aggressive canine cancers and most dogs die from this disease within a few months of the diagnosis. Despite advancements in veterinary oncology, there has been minimal improvement in …
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Response of Peripheral Blood Lymphocytes from RAO-affected Horses to b2-Agonist Stimulation
Recurrent airway obstruction (RAO) affects middle-age horses, inducing bronchoconstriction and airway inflammation. β2-agonists like salbutamol are used as treatment, promoting airway smooth muscle (ASM) relaxation and bronchodilation. In addition to ASM, inflammatory cells express the …
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A Possible Role For Prostaglandin E-B2-S as a Suppressor of Macrophage Phagocytosis
Suppression of macrophage phagocytosis of Listeria monocytogenes has been shown to be due to a low molecular weight component of spleen cell culture supernatant. The possibility that the factor could be a prostaglandin was investigated. When murine peritoneal macrophages were treated with …
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Interferometric studies of 3 millimeter continuum and molecular lines in the giant molecular cloud Sagittarius B2
The giant molecular cloud Sagittarius B2 is known for its active role in chemical evolution, massive star formation, and complex kinematic structure. Studies of the 3 mm continuum and the transitions of various molecular species are essential in understanding not only the chemical evolution but …
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Bioreactor-biochar (B2) treatment system: A novel design for efficient water pollution control from agri-drainage
… woodchip bioreactor and designer biochar (B2) system was investigated to reduce both nitrogen and phosphorus loss from tile drainage at the field scale. The results indicated that more than 83% of nitrate and 25% of ammonia (NH3 -N) was removed by the B2 systems. However, the woodchip …
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Deformation mechanisms in B2 aluminides: shear faults and dislocation core structures in FeAl, NiAl, CoAl and FeNiAl
Although aluminides with the B2 crystal structures have good properties for high temperature applications, the strong ordered bonds that make them durable at high temperature also make them too brittle at room temperature for industrial fabrication. In order to better understand this lack of …
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THE LYSOSOMAL AMYLOID AGGREGATION OF B2-MICROGLOBULIN PROMOTES MULTIPLE MYELOMA PROGRESSION: A MOLECULAR FOCUS ON THIS PRO-CANCER MECHANISM
Maintenance of native folding is crucial for ensuring protein biological activity. Despite cells have evolved several control mechanisms to preserve folding, when they fail, proteins undergo destabilization or partial unfolding, events that favor the onset of protein misfolding diseases. These …
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3 Mm Spectral Line Surveys of the High Mass Star Forming Regions Sagittarius B2(N -Lmh) and Orion -Kl
… results of the analysis of the data from the Sgr B2(N-LMH) line survey, where most large, saturated molecular species were constrained to a very small region in the cloud, with the exception of a single transition of C2H5OH which is found to be widespread. The fourth chapter gives the initial …
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The Role of [beta]2-Syntrophin Phosphorylation in Secretory Granule Exocytosis
… SGs named ICA512/IA-2 binds the PDZ domain of b2-syntrophin,which in turn binds to the F-actin-binding protein utrophin. These data also indicate that stimulation of SG exocytosis affects the phosphorylation of b2-syntrophin,hence altering its binding to ICA512.Therefore a model was proposed …
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The Character and Genesis of a Clay-Enriched Horizon That Occurs Below The Normal B2 Horizon and in Coarse to Medium Textured Drift of Wisconsinage
… 1 5900470.pdf: 5392608 bytes, checksum: 0289cd2cb201c7fd5b1cbd1a9fe15774 (MD5) Previous issue date: 1958
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Mesoscale Models for Stacking Faults, Deformation Twins and Martensitic Transformations: Linking Atomistics to Continuum
… and determine the energy pathway for B2→B19 transformation in NiTi. Based on our ab initio DFT calculations, we propose a combined distortion-shuffle pathway for B2→B19 transformation in NiTi. Our results indicate that in NiTi, a barrier of 0.48 mRyd/atom (relative to B2 …
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EscúchELE a lo académico : secuencias didácticas para el desarrollo de la comprensión auditiva de textos auténticos con contenidos académicos en español como lengua extranjera. Nivel B2
… material que ayude a aprendices de ELE, de nivel B2, a desarrollar la comprensión auditiva a través de materiales auténticos con contenido académico. El material de audio auténtico se obtuvo a través de internet, de programas de radio colombianos. Para la creación del material se realizó una …
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