The objective of this study was to develop and compare the performance of laboratory grade and portable attenuated total reflectance infrared (ATR-IR) spectroscopic approaches in combination with partial least squares regression (PLSR) for the rapid quantification of alpaca serum IgG concentration, and the identification of low IgG (<1000 mg/dL), which is consistent with the diagnosis of failur...

Cold injury (CI) causes irreversible damage to tea plants, which results in decline the quality of famous teas and huge economic loss. A new, quick, non-destructive method is provided assess CI leaf based on terahertz (THz) spectroscopy. Absorbance samples was measured with THz spectroscopy frequency bands from 0.1 1.6 under low temperature treatments 4.0, 0, −2.5, −5.0, −7.5, −10.0 °C. Fast Fo...

The paper describes linear and nonlinear modeling of the wastewater data for the performance evaluation of an up-flow anaerobic sludge blanket (UASB) reactor based wastewater treatment plant (WWTP). Partial least squares regression (PLSR), multivariate polynomial regression (MPR) and artificial neural networks (ANNs) modeling methods were applied to predict the levels of biochemical oxygen dema...

Maillard reaction products (MRPs) were prepared from mushroom hydrolysate (MH) by heating with d-xylose and l-cysteine at various temperatures (100 °C-140 °C) for 2 h at a pH of 7.4. The sensory characteristics of MH and MRPs were evaluated by panelists and volatile compounds were analyzed by GC/MS. Additionally, partial least squares regression (PLSR) was performed to analyze the correlation b...

In this study, a portable electronic nose (E-nose) was self-developed to identify rice wines with different marked ages-all the operations of the E-nose were controlled by a special Smartphone Application. The sensor array of the E-nose was comprised of 12 MOS sensors and the obtained response values were transmitted to the Smartphone thorough a wireless communication module. Then, Aliyun worke...

Abstract Aiming at the shortcomings of traditional methods for detecting content Alkaline Hydrolysis Nitrogen (AHN) and pH value in soil, such as time-consuming labor-consuming, this paper proposes a rapid quantitative inversion method based on hyperspectral analysis AHN value. This uses db4 discrete wavelet denoising (DWD) normalization (DWD-N) to carry out Pearson correlation analysis, two me...

BACKGROUND Anti interferon-beta (IFN-β) neutralizing antibodies (NAb) affect efficacy of treatment of multiple sclerosis patients, but exactly when the detrimental effects of NAbs offset therapeutic efficacy is debated. Quantification of intracellular pathway-specific phosphorylation by phospho-specific flow cytometry (phosphoflow) is a promising tool for evaluation of these effects in primary ...