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Showing 1 to 20 of 84 for “"Domain Structure"”.
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Probing the chiral domain structure and dynamics in SR2RUO4 with nanoscale Josephson junctions
… have shown evidence for chiral order parameter domains on the order of 1 m in size. To further search for signatures of these domains we have fabricated Josephson junctions on clean Sr2RuO4 single crystals (Tc=1.5 K) ranging from 500 nm to 4 m wide. Using an applied magnetic eld, we modulated …
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Automatic analysis of medical dialogue in the home hemodialysis domain : structure induction and summarization
… is challenging for humans because of the lack of structure and the verbosity of dialogues. This work presents a first step towards automatic analysis of spoken medical dialogue. The backbone of our approach is an abstraction of a dialogue into a sequence of semantic categories. This abstraction …
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CT3 as an Index of Knowledge Domain Structure: Distributions for Order Analysis and Information Hierarchies
The problem with which this study is concerned is articulating all possible CT3 and KR21 reliability measures for every case of a 5x5 binary matrix (32,996,500 possible matrices). The study has three purposes. The first purpose is to calculate CT3 for every matrix and compare the results to the …
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Investigating the Effects of Glycochenodeoxycholic Acid on Mutant Murine Norovirus P-Domain Structure and Antibody Interactions
… infection. NoVs contain 90 highly mobile P-domain dimers across their capsid surface with specific P-domain conformations known to facilitate host cell infection and promote immunological evasion. To understand these mechanisms, we investigated a novel murine norovirus (MNV) mutant and the …
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New modalities of strain-based engineering of ferroelectrics: domain structure and properties of PbZr1-xTixO3 thin films
… has been widely used to modify the crystal and domain structure, and ultimately the dielectric, ferroelectric, and pyroelectric responses of ferroelectric thin-films for a wide variety of applications including memories, transducers, energy harvesters, sensors, and many more. Traditionally, the …
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Domain structure, phase transformation, mechanical behavior and shape memory effect in a rare-earth orthoniobate lanthanum niobate
… and low-temperature phases possess the scheelite structure, and the low temperature monoclinic phase is heavily domained. The transformation mechanism is unknown. The domain structure in the monoclinic phase was reported as ""type III"" twins with highly mobile boundaries, exhibiting a rubber-like …
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Three-dimensional magnetic domain imaging with polarized neutrons
… and phase diagrams, which depend on the structure and dynamics of magnetic domains. Current techniques for studying magnetic domains are limited to imaging near-surface magnetic structure. Techniques for investigating bulk magnetic structure are under development, particularly for …
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X-ray scattering studies of strongly correlated materials: orbital ordering in KCuF3 and stripe-like domain structures in BiFeO3 epitaxial thin films
… and periodic arrays of stripe-like ferroelectric domains in epitaxial thin films of multiferroic BiFeO3 are presented in this dissertation. Both resonant soft x-ray elastic scattering and non-resonant hard x-ray elastic scattering probes were used. Our experiments on KCuF3 have revealed a …
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Synthesis and characterization of high performance polytetrahydrofuran based polyurethane-urea and ionene elastomers
… of interphase bonding on the cohesiveness of domain structure was addressed. The interchain attractive forces between rigid segments and the phase separation between hard and soft segments have been improved by introducing either urea groups or ionic units. The urea linkages have the …
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An x-ray study of the structure of K1-xRbxCy
… the mixed alkali layers form a (2x2)R0° superstructure with complete site disorder among the K and Rb metal atoms. Extensive low temperature investigations have not revealed any tendency of the mixed layer to either super-order or phase separate. The stacking sequence is independent of alloy …
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Local Correlation: Implementation and Application to Molecular Response Properties
… by Pulay and Saebø is the dependence of domain selection on the molecular geometry. In other words, as the geometry changes the domain structure of the local correlation calculation can change also, leading to discontinuities in the potential energy surface. We have examined the size of …
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New perspectives of pure and lanthanum modified lead zirconate titanate crystalline solutions
… of lead zirconate titanate (PZT). A hierarchy of domain structure was observed in the high temperature rhombohedral ferroelectric (FE) state, where local octahedral tilt domains on the scale of $\sim$50 A existed within the normal FE micron-sized domains. Constriction of the polarization by the …
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High Performance Lead--free Piezoelectric Materials
… understanding of the crystallographic nature, domain structure and domain dynamics of KNN. Since compositions close to x = 0.5 are of primary interest because of their superior piezoelectric activity among other compositions (0 < x < 1), crystallographic and domain structure studies are focused …
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Structural and functional studies of the C-terminal domain of human apolipoprotein A-I: Limited proteolysis and deletion mutagenesis
Limited proteolysis was used to study the domain structure and to produce a large N-terminal fragment of human apolipoprotein A-I (apoA-I). Digestion of reconstituted high density lipoprotein (rHDL) prepared with apoA-I and dipalmitoyl phosphatidylcholine (DPPC) or palmitoyloleoyl PC (POPC) by …
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The Zsm-39 Zeolite Dodecasil-3c: A New Ferroic Material
The structure and ferroic properties of pyridine dodecasil-3C (Py-D3C) were investigated. A combination of optical crystallography and X-ray diffraction techniques were used to determine that the ambient temperature phase possessed orthorhombic Fdd2 symmetry. The domain structure of Py-D3C was …
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Structural and Biochemical Characterization of the αI-domain, the Ligand Binding Domain, of Integrins αDβ2 and αXβ2
… and upon ligand binding, its ligand-binding domain (αI-domain) undergoes allosteric conformational changes. These “shape-shifting” events of the αI-domain are key to the mechanism of integrin action allowing metal-dependent bidirectional regulation of cellular signaling across the cell …
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Crystal Structure and Mechanism of Lysine Specific Demethylase-1
… Lys9 of histone-3. Here, we present the crystal structure of LSD1 at 2.9-A resolution. LSD1 forms a highly asymmetric, closely packed domain structure from which a long helical 'tower' domain protrudes. The active site cavity is spacious enough to accommodate several residues of the histone tail …
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Coherent X -Ray Diffraction
… spatial coherence of radiation. The antiphase domain structure of Cu 3Au is described, along with the associated reciprocal-space structure which is measured by CXD. CXD measurements place relatively stringent requirements on the coherence properties of the beam and on the detection mechanism …
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Low Temperature Cleavage Fracture of Microalloyed Bainitic Plate Steels
… yield strengths in the range 540 - 670 MPa. Microstructures were characterized by optical microscopy (OM), scanning electron microscopy (SEM) and electron back scattered diffraction (EBSD). Quantitative data was obtained for prior austenite grain (PAG) size, volume fractions of two bainite types …
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