In ballistic deposition (BD), (d+1)-dimensional particles fall sequentially at random towards an initially flat, large but bounded d-dimensional surface, and each particle sticks to the first point of contact. For both lattice and continuum BD, a law of large numbers in the thermodynamic limit establishes convergence of the mean height and surface width of the interface to constants h(t) and w(...

In Graph Minors III, Robertson and Seymour conjecture that the tree-width of a graph and that of its dual differ by at most one. In this paper, we prove that given a hypergraph H on a surface of Euler genus k, the tree-width of H∗ is at most the maximum of tw(H) + 1 + k and the maximum size of a hyperedge of H∗ minus one.

The current laboratory study is evaluating the effect of hydrofluoric acid etching duration on the surface characteristics of five silica-based glass ceramics. Changes in the pore pattern, crystal structure, roughness, and wettability were compared and evaluated. Seventy-five rectangularly shaped specimens were cut from each material (IPS e-max™, Dentsply Celtra™, Vita Suprinity™, Vita mark II™...

-The problem of a thermally conducting cylinder sliding steadily over the surface of an elastic half-plane with different thermal properties was analyzed. Appropriate Green's functions are used to reduce the problem to an integral equation which is solved numerically. Thermoelastic distortion due to frictional heating causes the contact patch to be smaller than that predicted for isothermal (He...

We have studied the roughness of a contact line on a disordered substrate by measuring its width distribution, which characterizes the roughness completely. The measured distribution is in excellent agreement with the distribution calculated in previous works, extended here to the case of open boundary conditions. This type of analysis, which is performed here on experimental data, provides a s...

On the basis of careful selection and calibration of model parameters we performed process and subsequent device simulation on WEB bipolar transistors. As a result, we concluded, that the mechanical stresses may be responsible for the measured varying device DC characteristics with emitter contact window width.

PURPOSE To assess the postural stability and gait characteristics of adults with age-related maculopathy (ARM) and to identify the visual factors associated with postural stability and gait in this clinical population. METHODS Participants included 80 individuals with a range of severity of ARM (mean age, 77.2 years). Binocular visual function measures included visual acuity, contrast sensiti...

The paper analyzes the components of cam profile a camshaft an internal combustion engine. authors developed method calculating width and area contact, as well degree slippage occurring in friction pair consisting tappet sleeve, resistance to wear profile, depending on roughness surfaces working lubricating medium. Studying parts shows that uneven occurs along its surface. values parameters aff...

This paper presents the design and development of a coplanar capacitive proximity sensor for detection gap between edges dielectric foils. The finite element analysis is applied to study by investigating effects different physical parameters, like, sensing electrodes width, spacing them thickness substrate on its responses. sensitivity increases with ascending electrode width; but negatively af...

Optimal perception of surface roughness requires lateral movement between skin and surface, suggesting the importance of temporal cues. The roughness of periodic gratings is affected by changing either inter-element spacing (groove width, G) or element width (ridge width, R). Peripheral neural responses to gratings depend quantitatively on a spatial variable, G, and a temporal variable, grating...