نتایج جستجو برای: پلیمر sbs
تعداد نتایج: 6627 فیلتر نتایج به سال:
Stimulated Brillouin scattering (SBS), a fundamental nonlinear interaction between light and acoustic waves occurring in any transparency material, has been broadly studied for several decades and gained rapid progress in integrated photonics recently. However, the SBS noise arising from the unwanted coupling between photons and spontaneous non-coherent phonons in media is inevitable. Here, we ...
Extensive resection of the intestinal tract frequently results in inadequate digestion and/or absorption of nutrients, a condition known as short bowel syndrome (SBS). This challenging condition demands a dedicated multidisciplinary team effort to overcome the morbidity and mortality in these patients. With advances in critical care management, more and more patients survive the immediate morbi...
The polarization-related properties of stimulated Brillouin scattering (SBS) processes in long, randomly birefringent, standard optical fibers are examined. Evolution equations for the pump and signal waves, in the presence of both birefringence and SBS, are provided in Jones and Stokes spaces. It is shown that in the undepleted pump regime, the amplification of the SBS signal wave is equivalen...
We study the coexistence problem in a two-tier heterogeneous network (HetNet) with cognitive small cells. In particular, we consider an underlay HetNet, where the cognitive small base station (C-SBS) is allowed to use the frequency bands of the macro cell with an access probability (AP) as long as the C-SBS satisfies a preset interference probability (IP) constraint at macro users (MUs). To enh...
BACKGROUND Energy crisis in 1973 led to smaller residential and office buildings with lower air changes. This resulted in development of Sick Building Syndrome (SBS). The objective of this study was to assess the association of SBS with individual factors and indoor air pollutants among employees in two office buildings of Petroleum Industry Health Organization in Tehran city. MATERIALS AND M...
The dynamic nature of service infrastructure causes the Quality of Service (QoS) of Service-Based Systems (SBS) to be unpredictable during execution. This necessitates monitoring and analysis tools which collect, measure and analyse metrics that characterise performance of a SBS from diverse facades in order to recognize elements that contribute to anomalies. To have a clear insight into the wo...
During development, activity in the somatosensory cortex is characterized by intermittent oscillatory bursts at gamma (early gamma-oscillations, EGOs) and alpha-beta (spindle-bursts, SBs) frequencies. Here, we explored the topography of EGOs and SBs in the neighbor barrels of the whisker-related barrel cortex of neonatal rats (P4-7) during responses evoked by simultaneous activation of multiple...
OBJECTIVE To evaluate shear bond strength (SBS) values of a methacrylate (FZ 250) and a silorane-based (FS) resin composite to various underlying materials. MATERIALS AND METHODS A total of 80 samples were prepared with four different underlying materials; a flowable (FLC) and a bulk-fill flowable composite (BFC), and a conventional (CGIC) and resin modified glass-ionomer cement (RMGIC). Thes...
one of the fundamental needs for the human is to have a workplace in which they can do their workappropriately. worldwide energy crisis necessitated the construction of official buildings with smaller space and less air ventilation. this led to the reduction in air conditioning, accumulation of the contaminants in indoor, increased exposure, health threat concerning the staff i...
22 victims of SBS.9 Duhaime et al. also advocated, based on available biomechanical data from subhuman primates, that shaking alone was not enough to cause the SBS findings. Duhaime’s findings were, however, disputed by other studies, and the concept of SBS as a purely shaking based phenomenon remained.10,11 A more serious challenge to the prevailing beliefs about SBS was provided by numerous s...
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