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Objective
To demonstrate the expression of abnormal spindle microtubule assembly (ASPM) in clinical osteosarcoma tissue specimens collected in our hospital, and to explore the function of ASPM in osteosarcoma in vitro and in vivo.
Methods
Tissue specimens from 82 cases of osteosarcoma were collected and analyzed by immunohistochemistry assay. We also investigated the relationship between ASPM expression...
A controllable optical feedback system was set up to investigate the linewidth of the RF signals generated by a two-section DFB laser. A very narrow line (its width less than 100 kHz) can be detected when both sections are under the influence of optical feedback.
In this work, we demonstrate the doping concentration and positioning effect of the type-II quantum well (QR) on the solar cell performances in terms of numerical simulation. The variation in doping concentration and location can affect the band diagram seriously and possibly form the back surface field which can either facilitate or deteriorate the carrier collection. A wide range of parameters are...
A current dependent model of RF generation is developed for the dual wavelength lasers. Because of the nature of current based operation, it is more convenient to have current as the main variable. From the numerical analysis, certain parameters such as wavelength change rate and linewidth enhancement factor (LEF) can affect the generated RF power more substantially than other parameters.
The peak frequency stability in the time domain is examined in the monolithic and discrete component conditions. The RF peak drift is two times less in the monolithic case than that of the discrete component.
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