We discuss the statistical mechanics of magnetic flux lines in a finite-thickness slab of type-II superconductor. The long wavelength properties of a flux-line liquid in a slab geometry are described by a hydrodynamic free energy that incorporates the boundary conditions on the flux lines at the sample’s surface as a surface contribution to the free energy. Bulk and surface weak disorder are mo...

We describe a measurement of the transmission probability of 4He atoms through a freely suspended slab of superfluid 4He at low temperatures. In our experiment the slab is realized by using an array of parallel cylindrical holes of diameter 51 microm in a glass disc of thickness 190 microm. By controlling the chemical potential, the holes can be made to fill or empty with liquid, and the surfac...

Fast Li transport in battery electrodes is essential to meeting the demanding requirements for a high-rate capability anode. We studied the intercalation of a Li atom into the surface and subsurface layers of Si(100) and Si(111) using density functional calculations with a slab representation of the surfaces. We suggest that the Li atom migrates on the Si surfaces and is subsequently inserted i...

When interpreting GNSS observations of ionospheric scintillation, it is instructive to distinguish between the separate goals of characterizing the GNSS signal fluctuations and characterizing the disturbed ionospheric medium that produces the scintillations. The statistics of GNSS signal fluctuations are of primary interest for GNSS tracking loop analysis and design studies intended to quantify...

Ordinary “loop joint” applied to precast prestressed concrete (PC) deck slab tends increase its thickness. By decreas-ing this thickness, the dead load of can be reduced. Hence, we have developed an “improved (inclined) loop that reduces This study presents results static bending test specimens confirm load-carrying behavior and wheel moving examine fatigue durability PC slabs with improved joi...

We have theoretically investigated the reflectivity spectrums of single- and double-layer photonic crystal slabs and the dielectric multilayer stack. It is shown that light can be perfectly confined in a single-layer photonic crystal slab at a given incident angle by changing the thickness, permittivity or hole radius of the structure. With a tunable double-layer photonic crystal slab, we demon...

We study the second harmonic generation (SHG) in a suspension of small spherical particles confined within a slab, assuming undepleted pump and applying (i) single scattering approximation and (ii) diffusion approximation. In the case (i), the angular diagram, the differential and total cross-sections of the SHG process, as well as the average cosine of SH scattering angle are calculated. In th...

We formulate a scattering-matrix-based numerical method to calculate the optical transmission properties and quasiguided eigenmodes in a two-dimensionally periodic photonic crystal slab ~PCS! of finite thickness. The square symmetry ~point group C4v) is taken for the illustration of the method, but it is quite general and works for any point group symmetry for one-dimensional ~1D! and 2D PCS’s....

Dehydration of subducting lithosphere likely transports fluid into the mantle wedge where the viscosity is decreased. Such a decrease in viscosity could form a low viscosity wedge (LVW) or a low viscosity channel (LVC) on top of the subducting slab. Using numerical models, we investigate the influence of low viscosity wedges and channels on subduction zone structure. Slab dip changes substantia...

Context. High spectral resolution X-ray observations of classical T Tauri stars (CTTSs) demonstrate the presence of plasma at T ∼ 2−3×106 K and ne ∼ 1011−1013 cm−3, unobserved in non-accreting stars. Stationary models suggest that this emission is due to shockheated accreting material, but they do not allow to analyze the stability of such material and its position in the stellar atmosphere. Ai...