Search

The nutritional composition and dietary fiber content of pine pollen fiber, oat fiber, and pine pollen-oat fiber products and their physicochemical properties, and correlation were analyzed to investigate the effects of pine pollen (compound) fiber composition on their physicochemical properties. The results indicated that, except for the moisture content, the proximate composition of pine pollen-oat compound fiber was between that of pine pollen fiber and oat fiber. The water-holding capacity (WHC), oil-holding capacity (OHC), cation exchange capacity (CEC), cholesterol adsorption capacity (CAC), nitrite scavenging capacity (NSC), and metal ion adsorption capacity (MIAC) of three fiber products ranged from 3.04 to 5.14 g/g, 2.18 to 3.65 g/g, 0.04 to 0.20 mmol/L, 15.50 to 28.79 mg/g, 1.95% to 26.22%, and 15.58 to 19.16 mg/g, respectively. The results of principle component analysis and pearson correlation analysis showed that WHC, CEC, and NSC of fiber products were significantly positively correlated with their crude protein, crude fat, and total soluble sugar (TSS) contents (P

Absolute value cumulating (AVC) algorithm is a common spectrum sensing method in Laplacian noise (LED) surroundings,however,the ‘spikes or outliers' in Laplacian noise can't be fully smoothed,which results in bad detection performance.Aiming at this problem,an modified AVC spectrum sensing algorithm was proposed.The principle was to do the processing of the absolute value of the received signal and the processing result was accumulated as the test statistic to determine whether there was the main user and realize the spectrum sensing.In addition,the central limit theorem was used to deduce the probability density curve of the proposed test statistic in the absence of the primary user,and the theoretical decision threshold was given.Numerical results show that the proposed algorithm outperforms the AVC sensing algorithm and energy detection algorithm with Laplacian noise about 1 dB and 4 dB respectively.