Surfaces can be slippery or sticky depending on surface chemistry and roughness. We demonstrate in atomistic simulations that regular and random slip patterns on a surface lead to pressure excursions within a lubricated contact that increase quadratically with decreasing contact separation. This is captured well by a simple hydrodynamic model including wall slip. We predict with this model that...

The see-saw mechanism for neutrino masses based on the Grand Unification leads to the mass of the heaviest neutrino (≈ ντ ) in the range (2−3) ·10−3 eV and hence to a solution of the solar neutrino problem through the νe − ντ conversion. We suggest the existence of a light singlet fermion S which mixes predominantly with muon neutrino through the mixing mass mμs ∼ O(1) eV. The introduction of s...

We consider the running of the neutrino mass matrix in the Standard Model and the Minimal Supersymmetric Standard Model, extended by heavy singlet Majorana neutrinos. Unlike previous studies, we do not assume that all of the heavy mass eigenvalues are degenerate. This leads to various effective theories when the heavy degrees of freedom are integrated out successively. We calculate the Renormal...

In this work, we explore the seasonal relationships (i.e., the phenology) between sea ice retreat, sea surface temperature (SST), and atmospheric heat fluxes in the Pacific Sector of the Arctic Ocean, using satellite and reanalysis data. We find that where ice retreats early in most years, maximum summertime SSTs are usually warmer, relative to areas with later retreat. For any particular year,...

 Channel estimation is a crucial technique in wireless communication, and pilot pattern design is an essential procedure to realize PSA-OFDM (pilot symbol assisted orthogonal frequency division multiplexing). In this paper, we researched on the constrained conditions of pilot pattern such as the number and the interval of pilot symbols. Then, all kinds of the pilot patterns and usage scenarios...

Knowledge of the plantar foot shape alteration under weight bearing can offer implications for the design and construction of a comfortable and functional foot support. The purpose of this study was to quantify the change in three-dimensional foot shape under different weight-bearing conditions. The plantar foot shapes of 16 normal feet were collected by an impression casting method under three...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

nowdays, it is not possible administration a city without enjoyment of knowledge urban strategic development of cities planner, designer, and expert affair as in study more the dimension divers regional urban and analysis fund divers urban planning. urban aim to showing is to set up modern solutions. lareg city has faced toward other small and middle cities also with difficulties and problems. ...