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A U-band oscillator is presented as a divide-by-two direct injection-locked frequency divider (ILFD), with NMOS injection transistors coupled to the LC oscillator. Compared with the both NMOS and PMOS injection transistors, the NMOS only injection transistors contribute to a much wider locking range. The strategy to choose the structure and sizes of the injection transistors for symmetry and the locking...
A fast inverse Laplace transform (ILT) for the three-dimensional (3-D) nuclear magnetic resonance distribution was proposed by the authors with a designed pulse sequence and an efficient data-processing algorithm in Zhang et al. (Appl Magn Reson 44:849–857, 2013). In this paper, evaluation method to the 3-D ILT algorithm is introduced and the simulation results using simulated data with three different...
In this paper, we analyzed the effects and applicability of optimization algorithms and coding methods to accelerate the Nuclear Magnetic Resonance (NMR) data processing speed. The optimal combination of processing speed optimization methods for one dimensional (T2) and two dimensional (T2int-D) analysis in NMR logging was obtained respectively, which satisfied the demand of processing NMR logging...
Thermal interface materials (TIMs), including thermal conductive adhesives (TCAs), grease, phase change materials (PCMs) and thermal pads, are widely used in thermal management for electronics system. In this work, a bimodal thermal conductive adhesive (b-TCA) composed of epoxy matrix and silver fillers were developed. The silver fillers consist of silver flakes and silver particles. The specimens...
In this paper, a novel isotropic conductive adhesive containing different fillers, which shows better properties at high temperature compared with traditional ones, was developed and the properties of various fillers were investigated. Silver flakes as the main filler and secondary materials such as silver nanoparticles, carbon nanotubes (CNT) with different volume ratios are combined to form bi-modal...
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