نتایج جستجو برای: noise sn ratio
تعداد نتایج: 675382 فیلتر نتایج به سال:
Based on a detailed study of the temperature structure of the intracluster medium in the halo of M 87, abundance profiles of 7 elements, O, Mg, Si, S, Ar, Ca, and Fe are derived. In addition, abundance ratios are derived from the ratios of line strengths, whose temperature dependences are small within the temperature range of the ICM of M 87. The abundances of Si, S, Ar, Ca and Fe show strong d...
در این پایان نامه نرمال بودن گراف های کیلیcay(sn, t) را بررسی می کنیم که در آن ها t یک مجموعه مولدمینیمال از ترانهش های sn است.قبلا ثابت شده که اگر گروه خودریختی گراف ترانهشی tra(t) بدیهی باشد،آنگاه aut(cay(sn, t))= r(sn).ما در این پایان نامه بدون ایجاد هیچ محدودیتی روی گروه خودریختی گراف ترانهشی ثابت می کنیم که گراف های کیلیcay(sn, t) نرمالند. فرض کنید t یک مجموعه از ترانهش های گروه متقارن sn...
The method of discrete ordinates is investigated for neutron noise simulations in the frequency domain. For this purpose, solver NOISE-SN developed and used to simulate two problems that are respectively derived from two-dimensional systems described transport simulation benchmarks C4V C5G7. In first problem based on system, compared diffusion-based simulator CORE SIM+. These results show SIM+ ...
in RF receiving coil design. However, modern is proportional to 0 , so that their population imaging techniques often demand very high speed difference is larger at high values of 0 . Since the and spatial resolution, so that the highest possible ratio of the energy difference to thermal energy is SNR is still required to avoid poor image quality. very small, the population difference increases...
We report on an application of a simultaneous perturbation stochastic approximation (SPSA) algorithm to filtering systematic noise (SN) with nonzero mean value in photoemission data. In our analysis, we have used a series of 50 single-scan photoemission spectra of W(110) surface where different SNs were added. It was found that the SPSA-evaluated spectrum is in good agreement with the spectrum ...
We review the observational status of the supernova/gamma-ray burst connection. Present data suggest that SNe associated with GRBs form a heterogeneous class of objects including both bright and faint hypernovae and perhaps also ‘standard’ Ib/c events. Evidence for association with other types of core-collapse SNe (e.g. IIn) is much weaker. After combining the local GRB rate with the local SN-I...
7-Ethyl-10-hydroxycamptothecin (SN-38), an active metabolite of antitumor agent irinotecan (CPT-11), is conjugated and detoxified to SN-38-glucuronide by UDP-glucuronosyltransferase (UGT) 1A1. Genetic polymorphisms in UGT1A1 are thought to contribute to severe diarrhea and/or leukopenia caused by CPT-11. In this regard, it has been reported that polymorphisms in the promoter region could affect...
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