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The working procedure is the basic unit in the gun maintenance process. 5M1E (Man, Machine, Material, Method, Measurement and Environment) are the six reasons leading to fluctuation of the key working procedure quality of the gun maintenance process[3].
[4] Wen Cai, Chunyan Yang, Weichu Li: Extendable Engineering Method(Science Press, Beijing 1997),in Chinese
[5] Kan Xia: Science and Technology Management Research Vol. 10 (2007), p. 97-99,in Chinese
[6] Jie Liu, Hengyou Yang: Journal of Anhui Agricultural Sciences Vol. 5 (2011), p. 3149-3150, in Chinese
[7] Zhaohua Xu, Xin Cheng, Fengxia Zhou, et.al: Journal of Liaoning Institute of Technology (Natural Science Edition) Vol. 1 (2009), p. 51-53, in Chinese.

The Holistic Urban Planning Approach of Urban Sustainable Development Hong Xu1,2 a 1 College of Urban Construction, Wuhan University of Science and Technology, Wuhan, China, 430065 2College of Urban Design,Wuhan University, Wuhan, China a1010xh@163.com Keywords: sustainable development; complex scientific management; holistic views; urban plan Abstract.
These operations should waste countless financial, human, material and time.
Therefore, the planning need to consider the geography, geology, topography, hydrology, climate and other natural conditions, considering the political, economic, cultural, science and education, industry, agriculture, transportation, trade, tourism, history, current situation, social development, Rural-urban linkages, environmental protection and other aspects.
Journal of Tianjin Normal University (Natural Science Edition) Vol. 20(2000), p. 53-58 [2] Li Z.
Journal of Capital Normal University（Social Sciences Edition） Vol. 5 (2001), p. 47-51 [3] C.Y.

Experimental Reagents and materials.
Wang, Sn doped nano-TiO2 mesoporous materials synthesized by Chemical self-assembly and its photocatalytic property, Science in China Ser: B Chemistry (in Chinese), 35 (2005)206-211
Zhao, Synthesis of Ni-doped TiO2 mesoporous material via solid- state reaction at low temperature and its kinetics of methyl orange photodegradation, Journal of Inorganic Materials (in Chinese), 24(2009)902-908
Susmitha, Photocatalytic degradation of dichlorvos in visible light by Mg2+-TiO2 nanocatalyst, Advances in Materials Science and Engineering, 2012, doi: 10.1155/2012/168780
Base on Inorganic materials science.

Hang: International Journal of Advanced Manufacturing Technology, Vol.13 (1997), pp.35-41
Naikan: International Journal of Production Economics, Vol.84 (2003), pp.149-163
Part B: Journal of engineering manufacture, Vol.218 (2004), pp.765-778
Jayabalan: International Journal of Production Research, Vol.45, No.6 (2007), pp.1449-1468
Kumar: International Journal of Engineering, Vol.3, No.4 (2009), pp.380-402

The curing age of the materials averages 17.5 days, with a standard deviation of 8.08 days, showing a considerable range in the curing periods evaluated.
The high mean value indicates that most materials used in the research exhibit good resistance to corrosion, although the wide range of values suggests variability depending on the environmental factors and material properties.
Lyon, Overview of corrosion engineering, science and technology, in: D.
Féron (Ed.), Nuclear Corrosion Science and Engineering, Woodhead Publishing Ltd, 2012, pp. 3–30
International Journal of Concrete Structures and Materials 9(2): 159-172

Materials and Methods In this investigation, we utilised various materials presented in this section. 2.1.
Proposed Methodology For the safety of our drone and all the materials, especially the camera, the pre-flight testing is done.
Applied Sciences, 9(18):3750, 2019
Journal of Engineering, 27(8):19–31, 2021
Applied Sciences, 12 (17): 8654, 2022

With the continuous development of science, technology, especially new materials, the selection of welding process becomes increasingly stringent and demanding [8].
Amorphous materials, a kind of new material with various properties, have been widely applied in many fields [15].
Materials Transactions JIM, 43 (2002) 1892-1906 [6] B.
Hu, Influence of Laser Remelting on the Corrosion Resistance of Fe-based Amorphous Composite Coatings, Materials Science Forum. 789 (2014) 70-78
Ti based biomaterials, the ultimate choice for orthopaedic implants–a review, Progress in Materials Science. 54 (2009) 397-425.

Effect of Die Coating on Tearing in Hot Extrusion of 7075 Aluminum Alloy Kuniaki Dohda1,a, Norio Takatsuji2,b, Tatsuya Funazuka2,c* and Ngernbamrung Sukunthakan3, d 1Department of Mechanical Engineering, Northwestern University, Evanston, 60201, USA 2Graduate School of Science and Engineering for Research, University of Toyama, Toyama, 930-8555, Japan 3Metal and Manufacturing Process Research Group, National Metal and Materials Technology Center, Pathumthani, 12120, Thailand adohda.kuni@northwestern.edu, btakatuji@sus.u-toyama.ac.jp, *cfunazuka@eng.u-toyama.ac.jp, dsukunthn@mtec.or.th Keywords: hot extrusion, 7075 aluminum alloy, die coating, tearing.
The material of die was made form SKD61 (HRC48).
At 600 mm, cracks were not observed on extruded material surface.
The surface of the extruded material was observed at 3000mm.
Dohda, Tearing mechanism of high-strength 7000 series aluminum alloy in hot extrusion, Journal of Japan Institute of Light Metals, 68 (12), 2018, p. 660-666

Current Situation High-speed Development of Building Materials Industry.
And other building materials and cement-related products also remain substantial growth.
Cement, brick and other building materials consume large amount of mineral resources.
Sustainable Construction Materials and Technologies.
Journal of Wuhan University of Technology-Materials Science Edition, 2009.5:834-837

The surface layers resulting from prolonged exposure to the indoor environment and the bulk material of metal artifacts from the collection of National Museum in Gdansk are studied by means of spectroscopic techniques.
Results of the in-depth LIBS stratigraphic analysis; elemental intensities of surface deposits related to the strongest Fe line of the bulk material vs. laser pulse number: Ba and Ca (a), and C (b) Fig. 7.
However, in case of precious historical objects a rigorous requirement of non-destructive testing can disqualify this technique because of the micro-damage due to surface ablation and removal of µgrams of the investigated material.
Śliwiński, Applied Surface Science Vol. 255 (2009), p. 5542-5545 [3] D.
Terryn, Journal of Raman Spectroscopy Vol. 37 (2006), p. 1211-1220