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Valve side lead exit is a key important part of converter transformer, by which bushing terminal connects with the transformer valve winding. Valve side lead exit consists of bushing terminal and surrounding barrier system, and it is usually installed in the bushing ascending flange where resin impregnated paper (RIP), oil impregnated paper (OIP) and transformer oil co-exist in the compact place....
Finite element method was used to compute the thermo-elasto-plastic stress and strain fields of turbine blade according to typical loading spectrum. Controlled-strain test of turbine blade material was carried to get some necessary parameters used in life prediction formulas. On the basis of the above analysis, fatigue life of gas turbine blade was estimated.
The study on enclosed centrifugal barrel finishing has been staying at the experimental period for a long time. The design parameters and process parameters were fully determined by experiences without any theoretical basis. Considering the abrasive particles and workpieces as two kinds of ball particles with different materials and sizes, 3-dimensional discrete element method (DEM) was used to build...
As track density increases, it has become even more critical to understand the track edge. In this study, the impact of media design on the track edges in perpendicular magnetic recording has been investigated. This study shows that soft under layer thickness and intergranular exchange coupling have significant impact on both track edge erasure and write width. In the range we studied, head-to-keeper...
The fan-out-type chip scale package (fan-out CSP) is an embedded chip packaging technology that eliminates the need for wirebonds and flip-chip bumps. In this study, the board-level reliability of fan-out CSP is studied by using three-dimensional finite element analysis. A design of simulations study is applied to investigate the influences of package geometry on the board-level interconnect reliability...
The problem of an overmolded flip-chip containing a die-underfill interface corner crack subjected to thermo-mechanical loading is investigated by using finite element simulation. The fracture mechanics parameters including the stress intensity factors and strain energy release rate along the corner crack front are determined by using a three-dimensional virtual crack closure technique. Effect of...
Atherosclerosis is a disease in human circulation system affecting a large percentage of people, especially elderly people in the developed countries. To better predict plaque progression and prevent potential rupture, multi-year MRI patient-tracking data were obtained to quantify human atherosclerotic plaque progression. MRI-based 2D/3D models with multi-component plaque structure and fluid-structure...
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