Die performance and its service life is a non-trivial issue in metal forming industry as many factors in die life cycle from design, fabrication, to downstream service, all affect it. In this report, a simulation-based approach for die life estimation and improvement is developed by employing the FEM technology and metal fatigue theory. Using industrial part as case study, the validity, robustn...

background: beta-thalassemia major is a severe and lethal hemolytic anemia. regular transfusion is necessary for avoidance of its complications but it may end to cardiac involvement secondary to iron overload. angiotensin converting enzyme inhibitors (aceis) are useful medications even in early stages of heart failure. we studied the effects of two common aceis on improvement of heart function ...

This paper proposes a low voltage (±0.55V supply voltage) low power (44.65µW) high common mode rejection ratio (CMRR) differential amplifier (d.a.) with rail to rail input common mode range (ICMR), constant transconductance (gm) and enhanced frequency performance. Its high performance is obtained using a simple negative averaging method so that it cancels out the common mode input signals at th...