The casing damage wells in non oil layers are mainly distributed the N2 and SI-SII shale interlayer, types deformation dislocation. main reason is that injected water enters into shale, cementing quality poor, it easy to form an invasion area after invading along channeling channel, which reduces stability of formation. Under effect geostress, force generated by formation sliding weak surface d...

An electro-rheological (ER) fluid showing trembling shear behavior was fabricated with chitosan particles that had benzene, amine and azo-pendent side groups. This modifiedchitosan dispersed suspension showed four regions in a plot of shear stress against shear rate at high electric field. We analyzed this specific behavior with our suggested model. The model was developed with the spring-dampe...

The dynamics of a confined polymer melt between strong adsorbing surfaces is considered theoretically. In particular the influence of bridging on the rheological behavior is investigated. I t is shown that the bridges are very important for small enough shear velocities. Several regimes of qualitatively different rheological behavior depending on the shear velocity are predicted, one of the int...

Aiming at the influence factors and their action regulation of slope stability in coal measure strata Beijing–Hong Kong & Macao Expressway, characteristics injection dip angle rock stratum, thickness strength parameters soft interlayer, height size on safety factor are systematically studied by using limit equilibrium method theory. The height, weak interlayer shear with different angle...

The influence of a thin porous SiNX interlayer on the growth of GaN by metalorganic chemical vapor deposition (MOCVD) has been studied. The interlayer is deposited on a GaN template by introducing silane in the presence of ammonia into the MOCVD chamber, and a GaN overlayer is deposited on the interlayer. The SiNX interlayer produces inhomogeneous nucleation and lateral growth of the overlayer,...

A common lateral force resisting system for cold-formed steel (CFS) buildings consists of shear walls sheathed with oriented strand board (OSB). Previous experimental and computational research on CFS shear walls, as well as those with other framing materials, has demonstrated that the complex interaction of the fasteners with the sheathing is an important factor in the nonlinear behavior of th...

gums are the most important stabilizers that are used in ice cream and other frozen dairy dessert industries. in this study, effect of different levels of guar gum (0, 0.1, 0.2 and 0.3%) and arabic gum (0, 0.1, 0.3 and 0.5%) on rheological behavior of frozen yogurt was investigated. the rheological behavior of samples showed that all samples exhibit shear thinning behavior and power law model f...

In this theoretical investigation we demonstrate that the adsorption of spatially extended two-dimensional (2D) π systems such as graphene and hexagonal boron nitride on the ferromagnetic fcc Co(111) surface leads to a specific behavior of the in-plane and interlayer Co-Co magnetic exchange interactions. More specifically, for both systems the magnetic exchange coupling within the first Co laye...

We study the Joshepson-like interlayer tunneling signature of the strongly correlated νT = 1 quantum Hall phase in bilayer two-dimensional electron systems as a function of the layer separation, temperature and interlayer charge imbalance. Our results offer strong evidence that a finite temperature phase transition separates the interlayer coherent phase from incoherent phases which lack strong...