As product development cycles become shorter, and companies demand more rapid achievement of reliability goals, it is becoming more and more important to use quantitative Accelerated Life Tests (ALT) to predict and improve reliability. Today there is an abundance of methods to plan and analyze accelerated tests, but there are also many pitfalls. This paper identifies some major problems and con...

In this paper we briefly present our works on the relic gravitational waves (RGW) and the CMB polarization in the accelerating universe. The spectrum of RGW has been obtained, showing the influence of the dark energy. Compared with those from non-accelerating models, the shape of the spectrum is approximately similar, nevertheless, the amplitude of RGW now acquires a suppressing factor of the r...

Economic growth of Bangladesh largely depends on unskilled and skill overseas manpower. Bangladesh is called an over populated country. She has much manpower but most of them are unskilled. So, Bangladesh is as one of the highest unskilled labor sending countries in the world and is gaining foreign remittance. After analysis the questionnaire survey, it has found that maximum labors are not sat...