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For Chip Multithreading (CMT) architecture, the inter-thread competition for resources has some uncontrollable and unwanted impacts on both any designated thread and the overall performance. A crucial reason lies in the absence of all-sided approaches to evaluate, predict and further control thread performance and resource utilization. In this paper, we take Rename-Register-File (RRF), a representative...
In this paper, the resonance signal of the rubidium optical pumping magnetometer was studied. The theory is based on the quantum physics and atomic physics. Through establishing the relation between the magnetic sub-level rate equations and the light intensity, the angular dependence of the resonance signal was discussed. When θ=0° the resonance signal is maximum, when θ=90° the signal strength becomes...
This paper reports an analytical calculation of the populations of the Zeeman sublevels of the cesium atom. We use a circularly polarized laser beam to pump the Cs-cell in the geomagnetic field. Using the approximate form of the optical Bloch equations, we obtain the time evolution functions of the populations of the Zeeman sublevels S1/2(F=4, mF=-4) and P1/2(F=4, mF=-3). The case of the laser detuning...
The magnetic field sensor of chip level is attracting more and more attention. In this paper, a laser cesium magnetic sensing system based on micro-electro-mechanical system (MEMS) technology was designed. The system was stacked vertically on a silicon chip, with the vertical cavity surface emitting lasers (VCSELs) to pump the absorption chamber between glass and silicon. The magnetic field outside,...
Pr60Ni25Al15 bulk metallic glass in a cuboid form with dimensions of 2 mm × 2 mm × 55 mm by copper mold casting method was cast. The dynamic viscosity near the glass transition region for Pr60Ni25Al15 was measured by three-point beam bending methods. The fragility parameter m and activation energy for viscous flow of the liquid sample were calculated to be: m = 31.66, E = 10689.17 K, respectively...
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