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Introduction The ceaseless progress of science and technology accelerate the development of city construction and expand the construction of city underground pipeline Today, the underground pipes are widely used in urban water supply and drainage systems, heating systems, gas supply system, and underground power embedded communication systems [1].However, due to the additional load of urban groundwater over-exploitation of underground resources, as well as the ground caused by a number of major projects [2], resulting in the foundation soil varying degrees of slow deformation [3] [4], the roads generate Subsidence [5].Degree of these factors in varying degrees, affect the normal use of the urban underground pipeline, resulting in the settlement of the urban underground pipeline sabotage [6], and ground subsidence [7] and collapse prone progressive, irreversible characteristics.These bring serious long-term effectsgive to the normal economic life of the city [8].China has been discovered
The experimental combination Taiyuan local underground pipeline data which exsiting n the road along the buried and space,Which include line interface size, spatial arrangements, material composition information, to create 1:1 experimental model to simulate the deformation and failure pattern of the underground pipeline in the foundation soil differential settlement in indoor geotextile slot,To analyze the cause of the formation mechanism of the road along the ground subsidence and collapse, and to establish the underground pipeline early warning mechanism which to prevent the damage of the pipeline because of the underground soil subsidence and collapse,and to ensure the normal use of the underground pipeline.
Journal of Structual Engineering JSCE. 1998, 44: 833-837
Henan Science and Technology, 2010, 7: 833-867 [6] Wang Ting, Cai Yong, Liu Jie.

Box 001 Shenhua NICE, Future Science & Technology City, Changping District, Beijing 102209, P.
Coal is a material with lower H/C atom ratio (about 0.8), but liquid fuel is a product with higher H/C atom ratio (about 2.0).
CIESC Journal, 62(2011), p.1070 (In Chinese) [4] J.
Xi’an Science and Technology University, China, 2009 (In Chinese) [6] X.

Tab. 1 Parameter Value Wingspan 0.850 [m] Length 1.115 [m] Loading space 0.27x0.075x0.05[m] Material Elapor foam Weight 1.1 [kg] Battery 3250 [mA], 3S, 11,1V Duration flight time 20 [min] Fig.1.
Acknowledgement The research work is supported by the Polish Ministry of Science and Higher Education as part of the ordered research project No OR00002911 conducted in the years: 2010-2012.
Jafarov, PID Parameters Optimization of an UAV Longitudinal Flight Control System, World Academy of Science, Engineering and Technology 45, pp.340-245, 2008
Tomczyk, “In-flight tests of navigation and control system of unmanned aerial vehicle”, Aircraft Engineering and Aerospace Technology: An International Journal, Vol. 75, No 6, pp. 581-587, 2003

Numerical Simulation Analysis of Auxiliary-rod Force for Tower Mei Li1, a, Xiaojun Jin1, Yanhui Li2 1 Civil Engineering, School of Science, North University of China, Taiyuan 030051, China 2 Mechanics, School of Science, North University of China, Taiyuan 030051, China a limei04045296@163.com Keywords: tower, auxiliary-rod, initial bend, force Abstract.
References [1] Shaofan Chen: Journal of Xi'an University of Architecture & Technology.Vol.41(2009),p.445 (In Chinese) [2] Xunfang Sun, Xiaoshu Fang, Laitai Guan.
Mechanics of Material.

Experimental Experimental material chemical composition (mass%) is C 0.12, Si 0.25, Mn 1.55, S 0.0045, P 0.085, Cu 0.35, V 0.033 and Fe balance, and is smelted in a 50 kg vacuum induction furnace.
Acknowledgements The authors gratefully acknowledge the financially supported by the National Science Foundation of China (Grant No.51034009).
References [1] Hongyan Wu, Linxiu Du, Xianghua Liu, et al: Journal of Northeastern University: (Natural Science).

The fatigue life simulation of the wheel of CHR3 EMU in random loading Jianwei Yang 1,a，Qilong Shi 2,b，Guangye Zhang 1,c, Jiao Zhang 2,d 1Beijing University of civil engineering and architecture School of Mechanical-electronic and Automobile Engineering，Beijing 100044 2Taiyuan University of Science and Technology School of Machine-electricity Engineering, Taiyuan Shanxi 030024 arailyjw@163.com,bahiqilong@163.com, czhangguangye1@126.com, d413711913@163.com Keywords: EMU wheels; FEM; fatigue life; MBS Abstract.
On the basis of quasi-static calculation method, the appropriate method of damage accumulation rule and amendments are selected, by using SN curve data of the material, and using dynamics simulation to obtain the load - time history and calculate structure fatigue life and damage values.
Acknowledgement This work was financially supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality(PHR201106125), the project of Taiyuan Science and technology development Founds(NO: 09121009)and the Beijing University of Civil Engineering and Architecture Doctoral Fund (NO: 101001704) and Beijing Qualified personnel Culture Fund （2010D005017000007）.
[4]A.Bernasconi,M.Filippini,S.Foletti,D.Vaudo.Multiaxial fatigue of a railway wheel steel under non-proportional loading[J].International Journal of Fatigue,2006,28:663-672

It is rather a challenge to choose the right materials to best suit existing requirements and to combine them in an ideal way to a multi-material design.
In order to be able to exploit the full potential of intrinsic hybrids, an interdisciplinary work on questions related to manufacturing, materials science and mechanical issues is necessary.
In materials science, the derivation of process-microstructure-property relationships are a fundamental objective.
Afterwards, both materials are assembled to an hybrid preform.
Modler: Intrinsic lightweight steel-composite hybrids for structural components, Materials Science Forum Vols. 825-826, pp. 401-408 (2015) [12] R.C.

Unnecessary movement of raw materials, work-in-process or finished goods. 4.
Product (raw materials, work-in-process, or finished goods) quantities that go beyond supporting the immediate need. 7.
• Excess processing causes wastes energy, generates emissions, water consumption or hazardous materials as well.
Official Journal No.
Environmental Science and Technology. 37. (5). pp 94A-101A, 2003

The loss on ignition (LOI) of the body and insert materials, was obtained by experimental tests at 950 ºC during 2 h and were correlated with results of thermogravimetry (TG) using a Shimadzu DTG 60.
Zhang, Melt corrosion of oxide and oxide-carbon refractories, International Materials Reviews, 44 (1999) 77-104
Jones, Estimation the physical properties of slags, The Journal of The Southern African Institute of Mining and Metallurgy 111 (2011) 649-657
Carter, EBSD of ceramic materials, in: A.
Adams (Eds), Electron Backscatter Diffraction in Materials Science, Ch. 24, 2000, pp. 299-318

The journals analyzed included those from Science direct, Scopus and Google scholars.
Journals adopted were those of English version.
The material properties such as porosity and density are also assumed to be uniform.
Asian Journal of Science and Applied Technology”, (2024). 13(2), 1–5
Global Journal of Environmental Science and Management”, 11(1), (2025). https://doi.org/10.22034/gjesm.2025.01.13 [68] Roy, M.