Results 231 to 240 of about 14,645 (268)
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The proximity effect in flux pinning
Journal of Applied Physics, 1980The elementary interaction force fp for a small normal conducting precipitate particle is usually estimated assuming that the entire condensation energy of the superconductor 1/2 μ0H2c is lost in the volume of the particle, i.e., that the particle is equivalent to a void.
Edward J. Kramer, Herbert C. Freyhardt
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Effect of pin depth on the dislodgement of pin-retained composite resin crown bases
The Journal of Prosthetic Dentistry, 1981Abstract A laboratory study was carried out to evaluate the effect of pin depth into dentin on the retention of composite resin crown bases. The crown bases were subjected to laterally applied dislodging forces. The results showed no statistically significant difference at the 95% confidence level in the retention of crown bases retained with pins ...
H H, Hermes, C W, Svare, D G, Drennon
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Effects of Pin Detached Space on Heat Transfer and Pin-Fin Arrays
Journal of Heat Transfer, 2012Heat transfer and pressure characteristics in a rectangular channel with pin-fin arrays of partial detachment from one of the endwalls have been experimentally studied. The overall channel geometry (W = 76.2 mm, E = 25.4 mm) simulates an internal cooling passage of wide aspect ratio (3:1) in a gas turbine airfoil. With a given pin diameter, D = 6.35 mm
Sin Chien Siw +3 more
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Critical currents and the effects of pinning
IEEE Transactions on Magnetics, 1991The bulk magnetic properties of sintered materials are treated as those of a standard magnetic material with a permeability dependent on the porosity. If J/sub c/ is expressed as a function of the internal H instead of the applied field, it is much more constant.
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Interfacial Crack Pinning: Effect of Nonlocal Interactions
Physical Review Letters, 1995We propose a perturbative approach to describe the evolution of an interfacial crack between two elastic solids with quenched disorder. The driving force is the stress intensity factor along the crack front. The latter is expressed as a function of the entire crack geometry through a linear convolution with a long-ranged kernel using a first order ...
, Schmittbuhl +3 more
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Effect and Limitation of Pinned Photodiode
IEEE Transactions on Electron Devices, 2016The pinned photodiode (PPD) is the primary technology for image sensors and used in almost all charge-coupled device image sensors and CMOS image sensors. This paper discusses the effect and limitation of PPD, especially dark current and electronic shuttering.
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The Effect of Angled Insertion on Halo Pin Fixation
Spine, 1989This study evaluated the effect of angled insertion of halo pins on the biomechanical characteristics of the halo pin-calvarium complex. Halo pins were inserted into isolated calvarium sections at 90 degrees, 75 degrees, and 60 degrees to the surface of the bone at an insertional torque of 0.68 N-m (6 inch-pounds).
K J, Triggs +4 more
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Effects of the Hubbard interaction and electrostatic pinning in polyacetylene
Physical Review B, 1988Abstract : The discrete model for the coupled electron phonon system in polyacetylene has been extended to include the electronic effects of electrostatic pinning and the Hubbard interaction in the unrestricted Hartree-Fock approximation. To fit experimental structural data, the Hamiltonian also includes the lattice kinetic energy and the coupling of ...
, Hicks, , Tinka Gammel J
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Anisotropy, pinning, and the mixed-state Hall effect
Physical Review B, 1995We have studied the mixed-state Hall effect of the high-{ital T}{sub {ital c}} superconductors Nd{sub 1.85}Ce{sub 0.15}CuO{sub 4} (NCCO), Tl{sub 2}Ba{sub 2}CaCu{sub 2}O{sub 8} (Tl2212), and YBa{sub 2}Cu{sub 3}O{sub 7} (YBCO), and the isotropic low-{ital T}{sub {ital c}} superconductor amorphous Mo{sub 3}Si ({ital a}-Mo{sub 3}Si).
, Clinton +7 more
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The effectiveness of pins with complete cast metal crowns
The Journal of Prosthetic Dentistry, 1984T he basic retentive elements in complete cast metal crown preparations are height, convergence, and surface area. Surface roughness of the casting and the cavity walls also contributes to retention, but to a lesser degree. Adhesive strength of the cementing medium aids retention, but this depends on the choice of product.
K C, Chan, D B, Boyer, T M, Schulein
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