Results 91 to 100 of about 210,084 (351)
Progress in Flexible Perovskite Solar Cells: Paving the Way for Scalable Manufacturing
Advanced Materials Technologies, EarlyView.Perovskite solar cells (PSCs) are well positioned for a successful market uptake. This is due to an unprecedented improvement of their efficiency and stability since the first report in 2009. In this review paper, the building blocks for the scalable manufacturing and future commercialization of flexible PSCs and their pathway to impact will be ...
Dimitar I. Kutsarov +5 more
wiley +1 more source
European Journal of Radiology Open, 2018 Purpose: To investigate the contrast enhancement in DSA images based on the X-ray absorption characteristics of iodinated contrast media. Methods: We have derived a new formula of predicting the pixel value ratio of two different contrast media and ...
Kuniharu Imai +6 more
doaj
Energy Spectrum Extraction and Optimal Imaging via Dual-Energy Material Decomposition [PDF]
, 2015 Inferior soft-tissue contrast resolution is a major limitation of current CT scanners. The aim of the study is to improve the contrast resolution of CT scanners using dual-energy acquisition. Based on dual-energy material decomposition, the proposed method starts with extracting the outgoing energy spectrum by polychromatic forward projecting the ...
arxiv +1 more source
Direct Iterative Reconstruction of Multiple Basis Material Images in Photon-counting Spectral CT [PDF]
arXiv, 2023 In this work, we perform direct material reconstruction from spectral CT data using a model based iterative reconstruction (MBIR) approach. Material concentrations are measured in volume fractions, whose total is constrained by a maximum of unity. A phantom containing a combination of 4 basis materials (water, iodine, gadolinium, calcium) was scanned ...
arxiv
From Photo‐Damage to Self‐Healing in Thin Film Pb‐Iodide Perovskites: Action at a Distance
Advanced Optical Materials, EarlyView.Fluorescence imaging uncovers pronounced spatial and temporal changes in photoluminescence of halide perovskite films following laser‐induced damage. Modifications spatially extend well beyond the illuminated region and evolve over distinct time scales ranging from seconds to many hours, revealing material‐specific self‐healing pathways. These findings
Yahel Soffer +4 more
wiley +1 more source
Saturation Spectroscopy of Iodine in Hollow-core Optical Fibre [PDF]
arXiv, 2012 We present high-resolution spectroscopy of Iodine vapour that is loaded and trapped within the core of a hollow-core photonic crystal fibre (HC-PCF). We compare the observed spectroscopic features to those seen in a conventional iodine cell and show that the saturation characteristics differ significantly.
arxiv
Excess backgrounds in Dark Matter detectors and physics of glasses [PDF]
arXiv, 2022 In solid-state dark matter detectors, energy accumulation due to ionizing radiation should produce delayed low-energy background similar to the background produced by energy deposited by mechanical stress. The tunneling two-level systems model for glasses is missing interactions between excitation; in contrast, interactions lead to emerging phenomena ...
arxiv
Development of polyclonal and monoclonal antibodies to iodinated contrast media [PDF]
Acta Radiologica, 1988 Two independent systems were developed to produce antibodies to diatrizoate. In the rabbit model polyclonal antibodies were produced that showed cross-reactivity to certain other contrast agents, analogues and serum proteins. In the mouse model monoclonal antibodies were produced that reacted only with diatrizoate, metrizamide, and ovalbumin.
W. L. McGuire +2 more
openaire +3 more sources
European Annals of Allergy and Clinical Immunology, 2020 Summary Adverse reactions to iodinated contrast media (ICM) are reported in 1%-3% of diagnostic procedures. They represent a relevant problem involving patients' safety as well as relevant costs for healthcare systems.
E. Meucci +7 more
semanticscholar +1 more source
Recent Developments in Radical Mediated Synthesis of Organostannanes.
Advanced Synthesis &Catalysis, EarlyView.Abstract The present review aims to provide an overview of the recent developments in the preparation of aryl‐ or alkenyl stannanes via carbon‐ and tin‐centered radicals enabling chemists to synthesize organostannyl derivatives with high efficiency and under mild conditions.
Qianhang Ren +4 more
wiley +1 more source