نتایج جستجو برای: تیوری ri
تعداد نتایج: 12020 فیلتر نتایج به سال:
In the present study, numerical simulations are performed to identify role of Reynolds number (Re), Richardson (Ri) and free-stream orientations (α) on flow structures, aerodynamic parameters heat transfer characteristics for conditions (20 ≤ Re 120, 0° α 90° 0 Ri 1.6). Prandtl (Pr) cylinder orientation (ϕ) kept fixed at 0.71 0°. The Oberbeck–Boussinesq approximation is used account buoyancy ef...
This paper carefully considers random landscapes related to Kauffman’s NK model. In particular, it considers a superset of this model (the NKP model) recently suggested in the GA-analytic literature. Landscapes are exhaustively examined for both the distribution of local optima relative to the global optima, and for characteristics that would effect juxtapositional (building block based) search...
DNA double-strand break (DSB) repair is critical for the maintenance of genome stability. The current models of the mechanism of DSB repair are based on studies of DNA repair proteins. Long non-coding RNAs (lncRNAs) have recently emerged as new regulatory molecules, with diverse functions in biological processes. In the present study, we found that expression of the ionizing radiation-inducible...
The cystic fibrosis transmembrane conductance regulator (CFTR) epithelial anion channel is a large multidomain membrane protein that matures inefficiently during biosynthesis. Its assembly is further perturbed by the deletion of F508 from the first nucleotide-binding domain (NBD1) responsible for most cystic fibrosis. The mutant polypeptide is recognized by cellular quality control systems and ...
OBJECTIVE To determine the potential combination benefit of treatment with PEG sTNF-RI and methotrexate in adjuvant arthritic rats. METHODS Lewis rats with adjuvant arthritis were treated by sc injections of either 3.0 or 0.3 mg/kg PEG sTNF-RI on days 9, 11, and 13 of adjuvant arthritis. The effects of PEG sTNF-RI treatment alone were compared to treatment with daily oral methotrexate (0.075,...
Portable sleep studies may play an important role to take decisions on patients referred for suspicion of Sleep Apnea-Hypopnea Syndrome (SAHS). The aim of this study was to evaluate the diagnostic accuracy of automated analysis of ApneaLink in patients with suspicion of SAHS. All participants (75) performed the ApneaLink and polysomnography (PSG) simultaneously in the sleep laboratory. The two ...
Duty cycling is an efficient mechanism to conserve energy in wireless sensor networks. Several existing duty cycling techniques have been proposed to conserve energy, but they are not able to handle the contention under dynamic traffic loads. In this paper we propose a protocol called Sender-Assisted-Receiver-Initiated MAC (SA-RI-MAC) which solves this problem without sacrificing the energy eff...
Carotid stenosis is a major cause of stroke and timely intervention with stenting manipulation can significantly reduce the risk of secondary stroke. The impact of stenting procedures on patient functional capabilities has not yet been explored. The primary aim of this study was to examine associations between periprocedural carotid sonography parameters and post-treatment functional capabiliti...
Ri ed independence is a generalized notion of probabilistic independence that has been shown to be naturally applicable to ranked data. In the ri ed independence model, one assigns rankings to two disjoint sets of items independently, then in a second stage, interleaves (or ri es) the two rankings together to form a full ranking, as if by shu ing a deck of cards. Because of this interleaving st...
Cells alter the path of light, a fact that leads to well-known aberrations in single cell or tissue imaging. Optical diffraction tomography (ODT) measures the biophysical property that causes these aberrations, the refractive index (RI). ODT is complementary to fluorescence imaging and does not require any markers. The present study introduces RI and fluorescence tomography with optofluidic rot...
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