Considering the network structure is one of the new approaches in studying stochastic PERT networks (SPN). In this paper, planar networks are studied as a special class of networks. Two structural reducible mechanisms titled arc contraction and deletion are developed to convert any planar network to a series-parallel network structure.&#10In series-parallel SPN, the completion time distribution...

Artifacts arising when differential phase images are integrated is a common problem to several X-ray phase-based experimental techniques. The combination of noise and insufficient sampling the high-frequency signal leads formation streak artifacts in projections, translating into poor image quality tomography slices. In this work, we apply non-iterative integration algorithm proven reduce plana...

To study the flow topology and temperature distribution of Rayleigh-Benard convection in a highly slender cell, measurement simultaneous velocity 3-D domain is required. For this aim, implementing time-resolved PTV two-colour PLIF planned. As part development, for both techniques, experimental setup has been implemented separately to measure 2-D presented paper. PTV, scanning system also utiliz...

considering the network structure is one of the new approaches in studying stochastic pert networks (spn). in this paper, planar networks are studied as a special class of networks. two structural reducible mechanisms titled arc contraction and deletion are developed to convert any planar network to a series-parallel network structure. in series-parallel spn, the completion time distribution fu...

In this paper, an efficient numerical scheme based on uniform Haar wavelets is used to solve the non-planar Burgers equation. The quasilinearization technique is used to conveniently handle the nonlinear terms in the non-planar Burgers equation. The basic idea of Haar wavelet collocation method is to convert the partial differential equation into a system of algebraic equations that involves a ...

We present the characteristics of a ventilation-perfusion scan correlating to both planar and single photon emission computed tomography and computed tomography (SPECT/CT) images of the lungs in a patient with SwyerJames (MacLeod) syndrome. A Tc-99m MAA lung perfusion scan was recorded with multiple projections and SPECT/CT. In the ventilation scan, initially dynamic acquisition of aerosol Tc-9...

OBJECTIVE To determine the reliability of radionuclide cerebral blood perfusion imaging in confirming brain death irrespective of continued heartbeat. SUBJECTS AND METHODS Twenty-eight patients (19 male and 9 female, aged 17-63 years) with severe brain injury and fully supported until the final cardiac asystole were included in the study. Two sets of clinical tests aimed at ascertaining brain...

In this article, a high-speed antenna measurement system using multi-probe array technique for 5G application is suggested. The spherical near-field scan millimeter wave frequency band (3 GHz–40 GHz) and the rotation method adopted to improve speed. proposed RF consists of 14 (28 channel with dual-polarization), switch matrix, downconverters, amplifiers/attenuators, digitizers, signal generator...