Coulomb friction model with unilateral contact is a basic, but reliable, to represent the resistance sliding between solid bodies. It nowadays well-known that this can be formulated as second–order cone complementarity problem, or equivalently, variational inequality. In article, enriched take into account rolling, also known rolling friction. Introducing cone, an extended Coulomb's and its dua...

Let C be a cone in R whose base B is a planar convex body in a horizontal plane π and whose tip is a point v / ∈ π. Let C be a packing formed by translates of C and −C in R. We exhibit an explicit constant c > 0 such that the density of any such C is is smaller than 1−c, answering a question of Wlodek Kuperberg.

Dynamic etching methods for fabricating fibre optic tips are explored and modelled. By vertically translating the fibre during etching by an HF solution under an organic protective layer, a variety of tip shapes were created. The probe taper lengths, cone angles and geometrical probe shapes were measured in order to evaluate the dynamic meniscus etching process. Fibre motion, etching rate, meni...

The growth cone, the tip of the emerging neurite, plays a crucial role in establishing the wiring of the developing nervous system. We performed an extensive proteomic analysis of axonal growth cones isolated from the brains of fetal Sprague-Dawley rats. Approximately 2000 proteins were identified at ≥ 99% confidence level. Using informatics, including functional annotation cluster and KEGG pat...

Integrated simulations for the fast ignition with a cone-guided target and 10[ps] heating laser have been performed to investigate the core heating property of FIREX-I experiments. It was found that the core reached higher average temperature when the preformed plasma on an inner surface of the cone tip had longer scale length. As the scale length of the preformed plasma was not easily controll...

Dorsal root ganglion nerve cells undergoing axon elongation in vitro have been analyzed ultrastructurally. The growth cone at the axonal tip contains smooth endoplasmic reticulum, vesicles, neurofilaments, occasional microtubules, and a network of 50-A in diameter microfilaments. The filamentous network fills the periphery of the growth cone and is the only structure found in microspikes. Eleme...

The mechanism of stable jet formation was investigated by observing the motion of the liquid in a jet close to the capillary tip from which it emerges under the influence of an electric field. Tracer particles of lycopodium were inserted in the liquid and streak photographs were taken of a stable jet formed under the application of 10.5 kV and a flow rate of 30 ml/h. These photographs show an a...

The fracture and crack growth of mechanical structures is a usual phenomenon which is due to the application of tensile, cyclic loading or thermal stresses on the structure. So introducing of methods to prevent the crack growth is useful. Afterward, one of the repairing methods of crack growth, consisting to make a hole in the crack tip to elimi-nate the sharp corners, was explained. This metho...

BACKGROUND Malignant gliomas represent one group of tumors that poorly respond to ionizing radiation (IR) alone or combined with chemotherapeutic agents because of the intrinsic or acquired resistance. In this study, TIP-1 was identified as one novel protein that confers resistance of glioma cells to IR. METHODOLOGY/PRINCIPAL FINDINGS Meta-analysis indicated that high TIP-1 expression levels ...

We modify a kinetic theory of massless fermions to incorporate the effects conformal anomaly. Working in collisionless regime, we emulate anomaly via momentum-dependent electric coupling. In this prescription, leads hedgehoglike structure momentum space similar Berry phase associated with axial The interplay between and anomalies generates current, proportional helicity flow electromagnetic bac...