Notice of RetractionAnalysis of Shear Behavior for Medium and Heavy Plate
With the continuous development of large-scale software, the theory of finite element, and computer speed, so the accuracy has been continuously improved for numerical analysis of finite element. The numerical analysis method of finite element has become increasingly widely used in dealing with practical engineering problems, the calculated model was established by elastic-plastic theory under taking into account the factors including materials work-hardening, the velocity of cutting edge and so on. The law of stress and deformation has done a detailed analysis of deformation zone during shearing continuous casting slab based on the model. It can gain the largest shear force by the travel curve of shear stress, and seek the numerical simulation method for tilting shear force and energy parameters of the shearing machine, reach the purpose of less experiment and reducing the cost analysis. The results provide an effective way to determine the maximum shear stress and enhancement the useful rate of the cutting edge.
RESEARCH OF THREE-DIMENSIONAL DISTRIBUTION OF INTERNAL STRESS IN STRIP COILING PROCESS
In cold strip coiling process, the stress distribution in coil is determined by shape, crown and the transverse distribution of coiling tension At the same time, the influence on stress distribution of friction between strip and drum, between strip and strip can't be ignored In addition, due to the gap between layers, the coil must be treated as anisotropic body Based on above factors, a new three dimensional mathematic model has been developed to calculate the internal stress distribution in coil, and study the coiling tension control to reduce coil sticking rate in the bell type annealing furnace
Adsorption of immunoglobulin Y in supermacroporous continuous cryogel with immobilized Cu(2+) ions.
The influence of temperature, pH and ionic strength on the adsorption of Immunoglobulin Y (IgY) in IDA-Cu(2+) cryogel system was studied by batch equilibrium measurements. The adsorptive equilibrium data were obtained at 17 and 27°C, pH 5.0 and 6.5, and at ionic strength of 50 and 200mmolL(-1) NaCl. Langmuir, Freundlich and Langmuir-Freundlich models were fitted to equilibrium data, while the enthalpy of adsorption of IgY in IDA-Cu(2+) cryogel system was calculated through Van't Hoff analysis. The binding of IgY on cryogel was stronger at 27°C and lowest pH and ionic strength values, with apparent maximum adsorption capacity of 27mgg(-1). The adsorption of protein in the resin was spontaneous in all analyzed cases. The results provide valuable information to enable the improvement of IgY purification processes.