The temperature dependent complex AC susceptibilities of high temperature superconducting disks in perpendicular AC magnetic fields (in absence of DC magnetic field) have been calculated from first principles. The temperature dependent AC susceptibilities for different AC field amplitudes, AC field frequencies, reduced pinning potential, and sample thickness have been derived, which demonstrate...

In the flat products steel industry, the hot rolling mill transforms the incoming slabs in a thin coil which then can be processed to obtain the final products. Thickness is reduced by pulling the plate between two parallel rolls while moving the upper work roll. The effect of uneven thickness at both sides can produce deviations in the longitudinal direction of the slab, which have to be manua...

The laminar cooling of hot slabs is a distributed-parameter system characterized by time varying, nonlinear factors and physical difficulties in continuous temperature measurement. The process operation is classified into operating points according to steel No., thickness and target temperature. The moving slab is divided into segments upon which the control is to be implemented. The technology...

A semi-slab of precast concrete (or half-slab) is a structural system that consists at the bottom half slab and cast in situ top. To avoid traditional formwork minimize slab, this section can function as reduce thickness slabs, which makes their transportation easy. The interface between overtopping effective for system's performance. improve half-slab floor system, it needed to have shear conn...

introduction: skin dose and depth dose distribution of some beta sources that can contaminate skin or protective clothing covering the skin have been calculated using varskin2. materials and methods: in this research, absorbed dose to skin and depth dose from the skin surface have been calculated for 90sr/90y, 147pm, 32p beta emitter radioisotopes by using input parameters: activity of source, ...

Photon ambient dose equivalent buildup factors were calculated for point and plaque isotropic cobalt-60 and cesium-137 radioactive sources irradiating a finite slab shield materials of ordinary concrete, barite concrete, lead, lead glass and water using MCNP5 code. Studied shield thickness ranged from 1 to 15 mean free paths (mfp). A variance reduction technique available in the code was used t...

Mechanical soft reduction (MSR) is an effective method for elimination of the centerline segregation and porosity continuous casting steel slab, amount a key parameter that determines whether MSR could be applied successfully. In present work, 2D heat transfer model was developed predicting non-uniform solidification wide-thick slab. The measured shell thickness by nail shooting experiment slab...