PURPOSE Dual-energy CT imaging tends to suffer from much lower signal-to-noise ratio than single-energy CT. In this paper, we propose an improved anticorrelated noise reduction (ACNR) method without causing cross-contamination artifacts. METHODS The proposed algorithm diffuses both basis material density images (e.g., water and iodine) at the same time using a novel correlated diffusion algor...

Air-borne microorganisms, as well as their fragments and components, are increasingly recognized to be associated with pulmonary diseases, e.g. organic dust toxic syndrome, humidifier lung, building-related illness, "Monday sickness." We have previously described and validated a new method for the detection of pyrogenic (fever-inducing) microbial contaminations in injectable drugs, based on the...

This paper presents the results of studies of the local surface properties of pure and highly Nb-doped (12 wt %) TiO₂ nanotubes (TNT) using the X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) methods, respectively. XPS analysis showed that the pure TNT exhibit an evident over-stoichiometry combined with high level of undesired C contaminations, which was confirmed ...

Abstract The cosmic microwave background (CMB), carrying the inhomogeneous information of very early universe, is great significance for understanding origin and evolution our universe. However, observational CMB maps contain serious foreground contaminations from several sources, such as Galactic synchrotron thermal dust emissions. Here, we build a deep convolutional neural network (CNN) to re...

BACKGROUND, AIMS, AND SCOPE Heavy metal contaminants in environment, especially in drinking water, are always of great concern due to their health impact. Due to the use of heavy metals as catalysts during plastic syntheses, particularly antimony, human exposure to metal release from plastic bottles has been a serious concern in recent years. The aim and scope of this study were to assess metal...

BACKGROUND Operating theatre personnel are at increased risk for transmission of blood borne pathogens when passing sharp instruments. The hands-free technique, whereby a tray or other means are used to eliminate simultaneous handling of sharp instruments, has been recommended. AIMS To prospectively evaluate the effectiveness of the hands-free technique in reducing the incidence of percutaneo...

Background: Fish is a source of nutrition; however, toxic substances and heavy metals may enter human body due to consuming contaminated fish. The aim this study was investigate the levels DDTs in Liza parsia, fish species, assess health risk contaminants samples. Methods: extracted lipid added with n-hexane H2SO4 kept for long time. upper organic part collected analysis by gas chromatography e...

bulk tomato paste which is produced by most domestic factories in cocentrations more than 35% (35-40 degree of brix), and filled in to barels as bulk quantity under non - hermetic conditions.the microbial contamination level in this product is high since there is no any post heat treatment. for sterilization and microbial redaction barels maybe stored at coldstore or ambient temperatures for mo...