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Song: Journal of Materials Science and Engineering B.
Kim: Journal of Materials Research.
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Li: Materials Chemistry and Physics.
Yin: Materials Science and Engineering.

Preparation of an Active Packaging Material and Its Application on Strawberry Preservation FU Yabo1, 2, a, XU Wencai1,2, b*, FU Lu2, c, LI Dongli2, d and WANG Jianqing1,e 1Institute of Packaging and Printing Engineering, Tianjin University of Science and Technology, China 2Beijing Key Lab. of Printing & Packaging Materials and Technology, Beijing Institute of Graphic Communication, China afuyabo@126.com,bxuwencai@bigc.edu.cn (Corresponding author), cfulu1212@126.com, dlidongli66@163.com, jqwang@tust.edu.cn Keywords: Active packaging material; Strawberry preservation; Characterization; Shelf-life Abstract.
Materials and Methods Preparation of active composite packaging material.The active packaging (AP) material has a classic three-layer-structure, which could control release a certain amount of SO2 fungicide.
Gas permeation characterization of packaging materials.The gas permeation property of the inner layer was tested including water vapor transmission rate and oxygen transmission rate.
[3] Jiang Yanru, Fu Yabo, Li Dongli, et al., Effects of Molecular Sieve or 1-Methylcyclopropene Combined with SBS/LDPE Packaging on the Shelf-life of Cherry Tomatoes, Applied Mechanics and Materials. 469(2014) 180-184
Conte，et al., Effects of passive and active modified atmosphere packaging conditions on ready-to-eat table grape, Journal of Food Engineering.102(2011)115-121

Thiel, Mechanical properties of polymer-infiltrated-ceramic-network materials, Dental Materials. 29 (2013) 419-426
Swain, A novel polymer infiltrated ceramic for dental simulation, Journal of Materials Science: Materials in Medicine. 22 (2011) 1639-1643
Shiozawa, et al, Mechanical properties of composite resin blocks for CAD/CAM, Dental Materials Journal. 33 (2014) 705-710
Guess, Interpenetrating network ceramic-resin composite dental restorative materials, Dental Materials. (2015)
Bowman, Recent Advances and Developments in Composite Dental Restorative Materials, Journal of Dental Research. 90 (2011) 402 -416

They are no longer ideal structural materials for greenhouse frame.
Thus it can be conceived that traditional scaffolding structural materials can be replaced by an existing polymer organic materials.
And with a wealth of material model library, it can be used to simulate the majority of common engineering materials such as metals, polymers, composites, rubber, resilient compressible foam, reinforced concrete and other geological materials.
Therefore, it is feasible to use new polymer materials instead of traditional greenhouses structural materials.
Journal of Agricultural Mechanization Research (2004) No.4, p.78

Determination of Indoor 222Rn Concentrations Level on Different Room Sizes in Academic Building at Universiti Malaysia Kelantan Jeli Campus Mohammad Khairul Azhar ABDUL RAZAB1, a*, Nur Liyana HAMZAH2,b, Siti Fatimah ABD KARIM2,c, Nur Ezati AZHAR2,d, Nor Hakimin ABDULLAH1,e, An’amt MOHAMED NOOR1,f, Mazlan MOHAMED1,g, Zulhisyam ABDULLAH @ ABDUL KARI3,h, Noraina ADAM4,i 1Advanced Materials Research Cluster, Faculty of Earth Science, Universiti Malaysia Kelantan Jeli Campus, Locked Bag No. 100, 17600 Jeli, Kelantan, Malaysia 2Sustainable Environment & Conservation Research Cluster, Faculty of Earth Science, Universiti Malaysia Kelantan Jeli Campus, Locked Bag No. 100, 17600 Jeli, Kelantan, Malaysia 3Faculty of Agro Based Industry, Universiti Malaysia Kelantan Jeli Campus, Locked Bag No. 100, 17600 Jeli, Kelantan, Malaysia 4Advanced Meson Science Laboratory, RIKEN Nishina Center, 351-0198, Wako-shi, Saitama, Japan a*azhar@umk.edu.my, bnurliyanahamzah93@gmail.com, csitifatimahabdkarim93
@gmail.com, dcikzxaaty@gmail.com, enorhakimin@umk.edu.my, fanamt@umk.edu.my gmazlan.m@umk.edu.my, hzulhisyam.a@umk.edu.my and inoraina.adam@riken.jp Keywords: Radon sentinel 1030, α particles, building materials, health implications Abstract.
There is no correlation in BK 8 as 222Rn concentration is found to be independence to the environmental factors. 222Rn concentration in BK 8 could be influenced by building materials, ventilations and weathers.
[2] Saidi, S.A, Jaafar, M.S, Razab, M.K.A.A and Zulkepli, N.N, A study of radon-222 levels in foamed light concrete, Australian Journal of Basic and Applied Sciences. 7 (2013) 315 – 318
S and Hussin, H, Potential of fabricated light foamed concrete in reducing radon from building material, Materials Science Forum. 840 (2016) 427 - 431

In the study of composite materials, the matrix is the component that binds the filler particles to form the new material.
Reinforcing materials are a form of fillers, they are added into the matrix of the parent material to enhance its mechanical properties.
As such, polymeric composite materials have been a competitive alternative to typical metallic and alloy materials such as aluminum and steel [13].
Wang, Flame retardant polymeric nanocomposites through the combination of nanomaterials and conventional flame retardants Progress in Materials Science 114, 100687 (2020)
Lomov, Voids in fiber-reinforced polymer composites: A review on their formation, characteristics, and effects on mechanical performance Journal of Composite Materials 53, 1579-1669 (2018)

Kessler, Handbook of composites from renewable materials, biodegradable materials: John Wiley & Sons, 2017
Siracusa, “Food packaging permeability behaviour: a report,” International Journal of Polymer Science, vol. 2012, 2012
Mohan, “Microbial deterioration and degradation of polymeric materials,” Journal of Biochemical Technology, vol. 2, no. 4, pp. 210-215, 2010
Christova, “Polyester-based (bio) degradable polymers as environmentally friendly materials for sustainable development,” International journal of molecular sciences, vol. 16, no. 1, pp. 564-596, 2014
Iwata, “Biodegradability of poly (hydroxyalkanoate) materials,” Materials, vol. 2, no. 3, pp. 1104-1126, 2009

Laser machining, a green process developed at Cirrus Materials Science Ltd, generates an array of pores on various polymer surfaces, which replaces the chemical etch process, and provides strong adhesion for metal coatings to polymer substrates.
Laser machining employs a pulsed laser to remove materials from a substrate, so that micro or nano structures can be produced on the surface.
Materials Today: Proceedings, Vol. 5 (2018), p. 19011-19018
Materials Letters, Vol. 63 (2009), p. 840-842
Journal of adhesion science and technology, Vol. 25 (2011), p. 1211-1221

Composite materials from renewable sources are a sustainable alternative to commercial materials.
Materials and Methods Starting Materials and Fabrication of the Compounds.
New composite materials were manufactured by hot pressing (180 - 200 °C and 10 - 20 minutes) of a mixture of precursor materials (sawdust, alpaca wool and ichu) in suitable quantities.
Composition (volume %) of the materials prepared in this research.
References [1] Mori S, Charca S, Flores E and Savastano H 2021 Journal of Natural Fibers, pp. 475-491 [2] Charca S and Candiotti S 2020 IOP Conference Series: Materials Science and Engineering, 942(1),012010 [3] Mori S, Tenazoa C, Candiotti S, Flores E and Charca S 2020 Journal of Natural Fibers 17(5), pp. 700-715 [4] Zanovello L and Cardoso M 2019 Revista Energías renovables y medio ambiente.

Issues of environmental protection and sustainable development are gaining an increasing importance in everyday life, and nowhere is this more than in the field of Materials Science and Engineering.
The accuracy of the experimental results recognition is for 95%. 1 Introduction Environmental protection more and more get the attention of the materials scientific workers.
References [1] Su Rongguo, Liang Shengkang, Hu Xupeng, Wang Xiulin, “Discrimination of 6 toxic red tide algae occurred inEast China Sea by 3D fluorescence spectra”, MARINE ENVIRONMENTAL SCIENCE, vol 27, 2008, pp.265-268 [2] Su Rongguo, Liang Shengkang, Zhu Chenjian, Wang Xiulin, “Fluor escence Discr iminat ion Technology of Bacillariophyta and Pyrrophyta”, Environmental Science & Technology, vol 31, 2008, pp.52-55 [3] Sun Chongxuan, “Human Face Recognition with PCA Method”, Journa l of Yunnan Un ive rsity of Nationalities( Natura l Sc iences Ed ition), vol 19, 2010, pp.439-443 [4] Tian Yanan, Lei Hongw ei, Wang Xu, “An Automatic Navigation System Based on SVM Image Segmentation for the Blind”, Journal of Northeastern University(Natural Science), vol 31, 2010,pp.1681-1684 [5] Zhang Min, Li Taoshen, Zhong Shuying, “Implementation of principal components analysis method based on Matlab”, Journal of Guangxi University, vol 30(s), 2005, pp.74-77 [6] R.P.W.