نتایج جستجو برای: qw factorization
تعداد نتایج: 22639 فیلتر نتایج به سال:
BACKGROUND Diabetes is associated with a higher risk for adverse cardiovascular outcomes. To improve the health outcomes of patients with type 2 diabetes (T2DM), the American Diabetes Association (ADA) recommended target goals for the improvement of glycemic control and the reduction of cardiovascular risk factors associated with the disease. This retrospective analysis calculated the absolute ...
We present investigations of modulation of the absorption in InGaAs/In& modulation doped single quantum well structures used as conducting channel in field effect transistors. The electron concentration can be tuned continuously from N-0 to N=: 6.5~10" cm " using the gate voltage. The effects give in situ information on the 2D-electron gas. Furthermore the total quenching of the absorption seen...
Current injection efficiency and its impact on efficiency-droop in InGaN single quantum well (QW) based light-emitting diodes (LEDs) are investigated. The analysis is based on current continuity relation for drift and diffusion carrier transport across the QW-barrier system. A self-consistent 6-band k p method is used to calculate the band structure for InGaN QW. The analysis indicates that the...
We investigate theoretically a number of important issues rent have been considered before [ 151, [ 161, although the related to the performance of AlGaAs quantum well (QW) semicongain saturation effect was not explicitly treated, In Section ductor lasers. These include a basic derivation of the laser gain, the linewidth enhancement factor a, and the differential gain constant in I11 the fundam...
The active metabolite of vitamin D3, 1,25-dihydroxyvitamin D3 (calcitriol) has antiproliferative effects in non-aggressive prostate cancer, however, its effects in more aggressive model systems are still unclear. In these studies, effects of calcitriol and a less-calcemic vitamin D analog, QW-1624F2-2 (QW), were tested in vivo, using the aggressive autochthonous transgenic adenocarcinoma of mou...
BACKGROUND Interferon beta (IFNbeta) reduces relapses and MRI activity in relapsing-remitting MS (RRMS), with variable effects on disability. The most effective dose regimen remains controversial. METHODS This randomized, controlled, multicenter trial compared the efficacy and safety of IFNbeta-1a (Rebif) 44 micro g subcutaneously three times weekly (tiw), and IFNbeta-1a (Avonex) 30 micro g I...
We have examined the influence of strain relaxation on the excitonic recombination and diffusion in In0.2Ga0.8As/AlxGa12xAs quantum-well ~QW! samples designed for high-electron-mobility transistors, using spectrally and spatially resolved polarized cathodoluminescence ~CL!. Six molecular-beam epitaxial grown samples, with varying channel thicknesses ranging from 75 to 300 Å, were examined at va...
In this paper there is investigated the shift of qround electron band as a function of radius of quantum wire (QW) embedded into semiconductor medium due to the interaction between an electron and confined, interface phonons. The same problem have been already studied by different authors [1-2] who have been used the various physical models and mathematical approximation to describe the depende...
We consider the problem of analyzing spin-flip qubit gate operation in presence Random Telegraph Noise (RTN). Our compressive approach is following. By using Feynman disentangling operators method, we calculate probability driven by different kinds composite pulses, e.g., Constant pulse (C-pulse), Quantum Well (QW-pulse), and Barrier Potential (BP-pulse) RTN. When pulses RTN act x-direction z-d...
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