نتایج جستجو برای: cutoff wall
تعداد نتایج: 187393 فیلتر نتایج به سال:
The Voyager 2 cosmic ray experiment 0•erved the signature of a magnetic utoff of cosmic ray ia• immediately after the closest approach. to Neptune. The cutoff signature shows that the simultaneous ,.•ation of a trapped particle dropout could not have •urred at high magnetic latitudes, but is likely to be a •ft shadow of the planet caused by the large offset of' the ..•c!e drift shells. The OTD2...
Optimum compensation method and filter cutoff frequency in myocardial SPECT: a human observer study.
UNLABELLED Attenuation, photon scatter, and distance-dependent collimator-detector response are major degrading factors in myocardial SPECT images. The current study investigated whether compensation for these factors improves perfusion defect detectability, and compared the results for human observers with a previous study using a mathematical observer. METHODS Four methods were investigated...
objective: the two most frequent hypochromic microcytic anemias are β- thalassemia minor (btm) and iron deficiency anemia (ida). several discrimination indices have been proposed to quickly discriminate these similar entities via parameters obtained from automated blood count analyzers. the aim of this study to evaluate the diagnostic reliability of ten discrimination indices in the differentia...
In this study, we carried out a comparative analysis between two classical methodologies to prospect residue contacts in proteins: the traditional cutoff dependent (CD) approach and cutoff free Delaunay tessellation (DT). In addition, two alternative coarse-grained forms to represent residues were tested: using alpha carbon (CA) and side chain geometric center (GC). A database was built, compri...
The foundation pit of Yamansu hydropower station has an average depth 70 m and been excavated with five-level slopes. Lowering groundwater level is important in excavation. In this study, drainage pumping were conducted dewatering. Pumping tests performed to reverse hydraulic parameters calibrate numerical models. Numerical simulations evaluate the dewatering scheme. first stage, powerhouse tai...
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