Results 11 to 20 of about 879,818 (292)
Digital radiography image quality evaluation using various phantoms and software
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas +4 more
wiley +1 more source
Creep Characterization of Inconel 718 Lattice Metamaterials Manufactured by Laser Powder Bed Fusion
Advanced Engineering Materials, EarlyView., 2023 Herein, the creep characteristics of additively manufactured Inconel 718 metamaterials are investigated. The creep behavior of metamaterials and the effects of microstructural defects are assessed, and the microstructure defects are accurately captured using Kachanov's creep damage model.
Akash Singh Bhuwal +5 more
wiley +1 more source
Aerosol and Air Quality Research, 2020 This study’s main objective was to optimize the design parameters of the hybrid membrane-absorption CO2-capture process in natural gas steam cycle (NGCC) power plants. To calculate the CO2 concentration in the permeating gas and the required area for the
Wenfeng Dong +4 more
doaj +1 more source
Statistical mechanics of beam self-cleaning in GRIN multimode optical fibers [PDF]
, 2021 Since its first demonstration in graded-index multimode fibers, spatial beam self-cleaning has attracted a growing research interest. It allows for the propagation of beams with a bell-shaped spatial profile, thus enabling the use of multimode fibers for several applications, from biomedical imaging to high-power beam delivery.
arxiv +1 more source
Biotechnology for Biofuels, 2017 Background The biomass yield of Chlorella PY-ZU1 drastically increased when cultivated under high CO2 condition compared with that cultivated under air condition. However, less attention has been given to the microalgae photosynthetic mechanisms response
Yun Huang +5 more
doaj +1 more source
Clean Single-Valued Polylogarithms [PDF]
SIGMA 17 (2021), 107, 34 pages, 2021 We define a variant of real-analytic polylogarithms that are single-valued and that satisfy ''clean'' functional relations that do not involve any products of lower weight functions. We discuss the basic properties of these functions and, for depths one and two, we present some explicit formulas and results.
arxiv +1 more source
Humidifying system design of PEMFC test platform based on the mixture of dry and wet air
MATEC Web of Conferences, 2015 Based on the present humidifying system of PEMFC test platform, a novel design based on dry and wet air mixture is proposed. Key parameters are calculated, and test platform is built.
Tiancai Ma, Shi Xu, Dong Zhu, Rongxin Gu
doaj +1 more source
Simulation of coal gasification process based on hybrid model
Meitan xuebao, 2023 The current gasification mechanism model has large residuals under variable working conditions and the model can only simulate one working condition in a single run and cannot be run continuously to characterize the long-cycle operation of gasifier. This
Xinhui FANG +5 more
doaj +1 more source
Visual investigation of possible degradation in GEM foil under test [PDF]
, 2022 Visual investigation of a Single Mask (SM) Gas Electron Multiplier (GEM) foil, showing small resistance~($\sim$ 40 k$\Omega$), is performed manually using an optical microscope. The GEM foil is scanned and the different imperfections in the foil are identified.
arxiv +1 more source
Research on coal staged conversion poly-generation system based on fluidized bed
International Journal of Coal Science & Technology, 2014 A new coal staged conversion poly-generation system combined coal combustion and pyrolysis has been developed for clean and high efficient utilization of coal. Coal is the first pyrolysed in a fluidized pyrolyzer.
Mingjiang Ni +5 more
doaj +1 more source