Reliability of CT-based texture features: Phantom study.

CONCLUSION: Following large-scale validation, identification of reliable CTTA metrics can aid in conducting large-scale multicenter CTTA analysis using sample sets acquired using different imaging protocols, scanners etc. PMID: 31222919 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research

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In this study, stochastic Bayesian modeling was used to assess safety status of baby formulas and quantify factors leading to unsafe products in China market, utilizing food safety surveillance data under food category of baby formulas. Results demonstrate a positive safety status, with a value of 3.00‰ (0.49‰–7.01‰) for incidence (95% CI) of unsafe formulas in China market during the period of 2014–2018, and a declining trend for annual incidence of unsafe formulas during this period. Results also indicated that nonconformity in essential nutrients was the leading cause undermining safety ...
Source: Food Control - Category: Food Science Source Type: research
Publication date: Available online 17 August 2019Source: Food ControlAuthor(s): Qiang Xia, Hong Tao, Yunfei Li, Daodong Pan, Jinxuan Cao, Lianliang Liu, Xiaowei Zhou, Francisco J. BarbaAbstractWhen ultrasonic stimulation is applied to plant seeds it may promote the development of new adaptive characteristics during germination, thus providing an alternative to regulate nutritional and physicochemical attributes of germinated seeds. However, there is rather limited information concerning high-intensity ultrasound (HIU) effects on the germination process of crop seeds as foodstuff. This investigation aimed at examining the e...
Source: Food Control - Category: Food Science Source Type: research
Publication date: Available online 19 August 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Guoyong Ye, Hongwen Xing, Hui Liu, Yingjiang Li, Biao Lei, Dong Niu, Xuan Li, Bingheng Lu, Hongzhong LiuAbstractNon-ideal encoder signal parameters generally include amplitude imbalance error, quadrature phase error, dc-offset error and harmonic distortion. These non-ideal signal parameters are the main cause of nonlinear interpolation errors for Moiré encoders. In this paper, a total error compensation strategy for correcting these non-ideal signal parameters is presented. The compensation strategy consists of a pas...
Source: Sensors and Actuators A: Physical - Category: Physics Source Type: research
Publication date: Available online 19 August 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Song Xu, Shuangliang Li, Jun ZouAbstractThis paper reports a new micromachined two-axis water-immersible scanning mirror using BoPET (biaxially-oriented polyethylene terephthalate) hinges. A new fabrication process based on deep plasma etching on a hybrid silicon-BoPET substrate was developed to enable high-resolution patterning and batch fabrication capability. For demonstration, a prototype scanning mirror was designed, fabricated and tested. It has an overall size of 5 × 5 × 5&thin...
Source: Sensors and Actuators A: Physical - Category: Physics Source Type: research
In this study, nanocrystalline barium strontium sulfate complex BaxSr1-x(=0.12,0.50,0.88,0.94)SO4:Dya(=0.1,0.2,0.5,1.5%),Tbb(=0.2,0.4,1,1.5%) powders were prepared via a chemical co-precipitation method at room temperature. The nanocrystalline powders were characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, UV–visible spectrometry, thermoluminescence (TL), and photoluminescence. Under gamma ray irradiation, the maximum intensity of the TL glow curves for BaxSr1-xSO4:Dy0.1%,Tb0.2% was obtained with x = 0.88. The nanocrystallin...
Source: Journal of Physics and Chemistry of Solids - Category: Physics Source Type: research
We describe a new way of collecting data from Bomem DA3 Fourier transform spectrometers, bypassing the original computers used by these instruments, which are obsolete and more prone to failure than other parts of the system. We collect the interferogram, helium-neon reference laser, and a trigger marking zero path difference with a modern computer as a function of time at a high data rate, as opposed to as a function of position along the scanning arm of the interferometer. The interferogram is then reconstructed as a function of position (measured in helium-neon fringes) by interpolation. The resulting spectra are at lea...
Source: Journal of Molecular Spectroscopy - Category: Molecular Biology Source Type: research
In this study, the microstructure properties of L. argentatus feather rachis were analysed by scanning electron microscopy (SEM). These analysis methods enabled the configuration, structure and compression properties of the rachis to be investigated. The results indicated that the rachis was composed of the outer cortex and the inner medulla. The cortex had a continuous layered nano-fibre composite structure, which bears, transmits, absorbs and disperses the compression force. The medulla had bubble-like cells with a porous-fibre structure, which rapidly absorbs, transmits and consumes compression force and is a suitably l...
Source: Micron - Category: Biology Source Type: research
Publication date: 15 November 2019Source: Carbohydrate Polymers, Volume 224Author(s): Vahid Hasantabar, Hamed Tashakkorian, Monire GolpourAbstractEfficient procedure for preparation of the novel magnetic nanobiocomposite (MNbC) was successfully established by employing click chemistry protocol. The resulted structure exhibited valuable characteristics from biological viewpoints. The prepared materials and obtained nanobiocomposite were characterized by means of nuclear magnetic resonance (NMR), fourier transform infrared (FT-IR), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). To assay the a...
Source: Carbohydrate Polymers - Category: Biomedical Science Source Type: research
In this study, polydopamine (PDA) coated chitosan/calcium pyrophosphate hybrid microflowers (PDA@CS-CaP) were prepared using a facile approach and evaluated as a hemostatic agent. The surface morphology and elements, chemical groups, porous structure, thermostability, zeta potential, as well as surface wettability were systematically characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), N2 adsorption-desorption, thermogravimetry (TGA) and contact angle apparatus. Due to the synergistic effects of the high hydrophilicity (water contact an...
Source: Carbohydrate Polymers - Category: Biomedical Science Source Type: research
In this study, a quantitative PCR (qPCR) assay with propidium monoazide (PMA) treatment called PMA-qPCR assay was developed to detect the presence of E. coli O157:H7 in natural irrigation water that was more specific, more sensitive, and was unaffected by dead cells compared with traditional and conventional methods. Specific gene, fliC from E. coli O157:H7 was selected to design the unique primer and probe for the assay while propidium monoazide (PMA) was used to effectively prevent the interference of DNA from dead cells. Evaluation of the effect of PMA treatment exhibited permeation of the dead cell membranes that was o...
Source: Biochemical Engineering Journal - Category: Biochemistry Source Type: research
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