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Study on Destroying Enzyme in Chestnuts(Castanea Mollissima Blume)by Microwave Heating Chaonan Wang1a, Xinxin Yi1b*，Jinghua Qi1c，Fang Wang1d，Meixia Pang1e 1Faculty of Food Science and Engineering ,Beijing University of Agriculture，Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue，Beijing Laboratory of Food Quality and Safety, Beijing 102206, China aemail: wangchaonan1501@163.com bemail: yixinxin2008@163.com cemail : abc960718@sina.com *Corresponding author : Xinxin Yi, Beijing University of Agriculture, N7, Road of Beinong,Changping,District,Beijing,102206,China, Tel: 13683615931 Keywords： Chineses Chestnut, Non-Enzymatic Browning, polyphenoloxidase, peroxidase Abstract.
Materials and methods Chemicals and Samples.Ethyl acetate,disodium hydrogen phosphate,sodium dihydrogen phosphate,guaiacol, catechol, hydrogen peroxide, sodium bisulfite, concentrated hydrochloric acid and 2-thio barbituric acid were supplied by Beijing chemical factory , which of them are analytically grade .The fresh chestnuts of were collected from Huairou district in Beijing.
[3] Mowlah G.Takono K.Kamoi I.Browning phenomenon by banana polyphenol oxidases[J].J.Japanese Society of Food Science and Technology.1983.30(4) ,P.245-251
Journal of Shanghai Jiaotong University (Agricultural Science ),2001(19) ,P.174-178
Journal of Agricultural and Food Chemistry 2008, 56 (12) ,P.4545-4554

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Piezoelectric Potential Distribution in a Bent ZnO Nanorod Cantilever Zhengzheng Shaoa, Xueao Zhangb, Fei Wangc, Guang Wangd, Honghui Jiae, Shengli Changf Hailiang Zhangg and Liang Fangh Center of Materials Science, College of Science, National University of Defense Technology, Changsha, 410073, China a zzshao@ nudt.edu.cn, b xazhang@nudt.edu.cn, c wangfei_815@163.com, dwangguang@nudt.edu.cn, e hhjia@nudt.edu.cn, f slchang@nudt.edu.cn, g hlzhang@nudt.edu.cn, hlfang@nudt.edu.cn Keywords: ZnO nanorod, piezoelectric potential, free charge carriers, equilibrium potential, piezoelectric nanogenerator.
For bulk ZnO material, we have Young’s modulus GPa, Poisson ratio, relative dielectric constant , piezoelectric deformation constant ( C/N) , , [10].
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Apparent density of rubber particles is 1/3 of that of other materials in concrete.
And that volume of other materials is replaced by rubber particles added.
Besides, more rubber particles added, more volume of other materials replaced.
New Building Materials. 2012,12
[3] YANG Chnufeng, YANG Min, YE Wenchao.Influence of Modification to Mechanical Properties of Waste Rubber Concrete[J].Journal of Shenyang University (Natural Science ).2012,6

The 108 × 3 mm B10 tubes were used as the experimental materials.
Materials China, 2014, 33(2): 65-76. https://www.cnki.net [2] Glover T J.
Journal of Materials Science and Technology, 2021, 86: 227-236. https://doi.org/10.1016/j.jmst.2021.01.034 [16] Zhukov A.
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Selected Material Parameters of Cu for CPFEM.
The present CPFEM framework provides a numerically stable and physically consistent basis for analyzing texture effects, hardening behavior, and strain localization in FCC materials.
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Vattré, “HDR: Interfaces in crystalline materials,” arXiv preprint arXiv:2307.14569, pp. 40–50, 2023; https://arxiv.org/abs/2307.14569 [9] Raabe, D., Zhao, Z., Park, S.
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The improved combustion efficiency lowers particulate material and unburned fuel emissions especially in older engines with direct fuel injection systems.
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Green materials suitable for the mechanical Products should not only satisfy basic performance demands, but also favorable for the manufacturing, use and recycling of materials, as well as maximum resource utilization rate and minimum bad environmental influences.
Green materials are also called “eco-materials” or “environmentally conscious materials”.
However, as green materials involve a large number of factors, no perfect material selection method exists at present, so the deciders usually depend on their experiences in actual situations.
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Study on the Synthesis and Resolution of dl-Ephedrine Lin Hong-yan Hospital，Wuhan University of Technology Luoshi Road 205,Wuhan,430070,China E-mail: linhongyan@whut.edu.cn Keywords: dl-ephedrine;resolution; L-(-)-dibenzoyltartaric acid; D-(-)-ephedrine; L-(+)-ephedrine Abstract: For curing the common cold due to windcold , bosom frowsty cough, feng shui edema, bronchial asthma disease and etc, DL-ephedrine was synthesized by taking α-(Methylamino) propiophenone as the starting material followed reduction reaction.
Clinical Journal of Medical Officer,2010,38(4):666~668
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Chinese Journal of Medicinal Chemistry, 2008,18(3):195~199.