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Resistant starch has the benefits in the regulation of intestinal flora, improvement of intestinal function, control of cholesterol levels and glycemic index. In recent years, the most concerned is the prebiotic effect of resistant starch. Fermented milk has been considered as the best carrier of probiotics and prebiotics. Adding type III resistant starch to fermented milk could not only improve the quality of fermented milk, but also enhance the functionality of fermented milk. This paper briefly introduced the relationships between resistant starch and prebiotics, and summarized the application of type III resistant starch in fermented milk. This paper also expounded the effect of type III resistant starch on the quality of fermented milk and its probiotic evaluation, which could provide reference for the application and development of type III resistant starch in functional fermented milk.

Artificial electromagnetic medium can effectively expand the absorption bandwidth of the absorber,which has aroused wide attention of researchers at home and abroad. The main typical structure and application of broadband absorbers based on artificial electromagnetic medium were reviewed in recent years. The mechanism of artificial electromagnetic medium structure in improving the absorption rate of the absorber was analyzed. The theoretical model of widening the bandwidth of the absorber based on lumped elements was introduced. The important role of artificial electromagnetic medium in expanding the absorbing bandwidth was emphasized. Finally, the application prospect of electromagnetic medium in the field of science and technology was prospected, and it was pointed out that the future development trend of broadband electromagnetic absorbers mainly focuses on coordinability, multi-physics coupling and low-cost production, especially the efficient large-area low-cost production process will become important for the future.

It is significant to understand the influence of insects among stored grain on the content of mycotoxin in the storage condition of non-mouldy and non-toxic.Aflatoxin B1 (AFB1) contents in the maize were detected after being infected by larvae and imagos of Ahasverus advena(Waltl) in different time.The results indicated that AFB1 content and mold quantity decreased significantly in the maize infected by the larvae and imagos of A.advena.Imagos were more effective in decreasing AFB1 content than larvae.The lower the broken kernels rate was, the more effective in decreasing AFB1 content.AFB1 content in maize decreased significantly with the insect densities increasing and time going.

Additive Manufacturing(AM) is an advanced direct-manufacturing technology, based on the discrete-stacking principle. Laser Powder Bed Fusion (L-PBF) is one of the most promising technologies in the field of metal AM, with the characteristics of fabricating parts with complex shapes directly. For L-PBF equipment , the core device is lasers, and almost all L-PBF printers are currently equipped with infrared laser. However, due to too low absorption rate of the pure copper surface to infrared laser and high thermal conductivity between pure copper, it is extremely challenging to fabricate pure copper by traditional infrared-laser powder bed fusion(IR L-PFB). In this work, green-laser was applied to replace traditional infrared laser during L-PBF process, molten pool structure and temperature flow behavior of Green-Laser powder bed additive manufacturing pure copper was studied by mesoscopic simulation. Here we show that green-laser greatly improved the absorption rate of the pure copper surface, and the result showed that with lower cost laser process parameters (lower laser power 300W and larger hatching space 0.08 mm), pure copper parts with smoother surface, no-remelting and no obvious defects could be fabricated successfully.

To improve the surface properties of 20 steel, the chromium element was alloyed on 20 steel by high current pulsed electron beam (HCPEB) with pre-coating to obtain a high quality of alloyed layers.Microstructure and properties of the alloying layer were studied by means of XRD, OM, SEM, TEM and multi-purpose microcomputer electrochemistry analyzer. The results show that, after HCPEB alloying, the formation of an alloyed layer with the depth of about 4-6μm on the surface is observed. The solid solution and diffusion of Cr element occurs on the surface of the substrate.Bending and granulating occur on part of cementite under bending stress induced by HCPEB irradiation, the C atoms generated by the dissolution of the cementite combine with the chromium to form a small amount of nanograined carbide Cr23C6. After HCPEB alloying, the surface microhardness increases by 35% and corrosion current density reduces one order of magnitude than original sample.

Purpose: The study investigates the therapeutic effect of Oridonin on PTEN loss and HER2 amplification PI3K/AKT signaling hyper-activated (p-AKTHigh) breast cancer. Methods: The experiment uses MDAMB231, MCF-10A, SKBR3 (HER2 amplification), MDAMB468 (PTEN loss) cells, and Xenograft Murine Models. Cell viability is assessed by MTT, Clonogenic growth, CCK-8 assays. The inhibition of phosphorylation is tested by Western blot. Xenograft studies are used to test tumor growth blockage.The most possible result: Oridonin inhibits phosphorylation of AKT1 substrates and downstream proteins instead of AKT1. Also, it blocks the growth of PTEN loss and HER2 amplification p-AKTHigh breast cancer. Conclusion: This study provides important information for the clinical trial of Oridonin. Future experiments should focus on its toxicity and efficacy.

The 39Ar-40Ar dating technique yields high-precision results, and all age data depend on accurate ages of National Standard Reference Materials that are irradiated together with the unknown age samples. Reference material is not only essential for obtaining 39Ar-40Ar isotopic age, but also the main factor to affect the quality of the 39Ar-40Ar age data. In order to eventually obtain accurate 39Ar-40Ar age, it′s is significant to develop reference materials with different age values. In this paper, Sanidine SK01 as the Cenozoic reference material of 39Ar-40Ar dating method was separated from hypabyssal quartz porphyry in the Fenghuo Mountain of Kekexili. Statistics of analytical data show that F value of 39Ar-40Ar of 0.857 was less than its threshold F value of 2.08, and its RSD of 0.66% was less than the required 5%. The good homogeneity of SK01 met the requirements of the national first-grade technical specification for standard materials as JJG 1006—1994. Through simulating the transport process, 39Ar-40Ar age analytical data showed that F value of 0.00697 was less than its threshold F value of 6.59, and its RSD of 0.58% was less than the required 5%, which proved samples maintained a good homogeneity during transport. In order to ensure the quality of 39Ar-40Ar dating, the minimum sample weight of 5 mg was recommended. The tests results indicated the homogeneity of Cenozoic sanidine SK01 is good, which satisfies the quantitative analysis of 39Ar-40Ar dating.