The aim of this research is to design a controlling loop that eliminates the irregularities in yarn tension during the winding process. In order to achieve this, we employed a relative feedback industrial control system. The yarn tension sensor measures the tension. Its output is analyzed in the automatic controlling unit. This unit adjusts the tension level according to feedback signals, thus ...

The equibiaxial planar tension test is an important method for determining the mechanical properties of hyperplastic membranes, and it also critical to designing effective rig meet experimental accuracy requirements. However, any analysis addressing this not reported in literature. In paper, apparatus proposed conducting single-corner-point tests on hyperelastic electroactive polymer (EAP) memb...

A number of workers have estimated surface tensions of solids from measurements of the differences in the lattice parameters of bulk crystals and microcrystals. The data are then analysed by an expression valid only for spherical. isotropic microcrystals. Real microcrystals are usually facetted, resulting in a number of possible problems which are discussed here. The main results given are : (i...

The electrophysiological and inotropic effects of Coenzyme Q10 (CoQ10) on isoproterenol or barium-induced slow responses in ventricular papillary muscle, depolarized by high K+ concentration (21.6 mM) under hypoxia (PO2 = 40 mmHg), were studied with microelectrode techniques. For the isoproterenol-induced slow response, application of CoQ10 (50 micrograms/ml), which was emulsified with the aid ...

The flow of two immiscible fluids completely filling an enclosed cylinder and driven by the rotation of the bottom end wall is studied numerically. The simulations are in parameter regimes where there is significant advection of angular momentum, i.e., the disk rotation rate is fast compared to the viscous diffusion time. We consider two classes of scenarios. The first consists of cases that ar...

High-strength aluminum alloys are of increasing interest to the aerospace and automotive industry for critical high-strength components. B-pillars and door beams being of particular interest to the automotive industry Refill friction stir spot welding (RFSSW) offers an attractive means of joining these difficult-to-weld alloys since bulk melting is avoided and no exit hole is left. In this stud...

The surface tension of compliant materials such as gels provides resistance to deformation in addition to and sometimes surpassing that owing to elasticity. This paper studies how surface tension changes the contact mechanics of a small hard sphere indenting a soft elastic substrate. Previous studies have examined the special case where the external load is zero, so contact is driven by adhesio...

We investigate the parameter space of two-field inflation models where inflation terminates via a firstorder phase transition causing nucleation of bubbles. Such models experience a tension from the need to ensure nearly scale-invariant density perturbations, while avoiding a near scale-invariant bubble size distribution which would conflict observations. We perform an exact analysis of the dif...

Consider a family of zero-sum games indexed by a parameter that determines each player’s payoff function and feasible strategies. Our first main result characterizes continuity assumptions on the payoffs and the constraint correspondence such that the equilibrium value and strategies depend continuously and upper hemicontinuously (respectively) on the parameter. This characterization uses two t...