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Dynamic Simulation of Twin Tripod Sliding Universal Joint Degong Chang1,a, Lizeng Zhang2,b and Zhaodong Liu3,c Qingdao University of Science and Technology, Qingdao, Shandong Province 266061, P.R.
Fig. 6 The force curve diagram of force on the journal of the twin tripod sliding universal joint In Figure6, in the dynamic simulation process of the twin tripod sliding universal joint, the force’s trend between the three journals and ball head in cylindrical joint on one end of the tripod is similar to the trend of the slider in Figure2 and ball head in Figure4.
Fig. 7 The force curve diagram on the journal of the twin tripod sliding universal joint without friction We can see in Figure7, in the dynamic simulation process of the twin tripod sliding universal joint, if we don’t consider the friction impact on the three journals and ball head in cylindrical joint on one end of the tripod, the force of the journal suffered in three directions are the horizontal, radial, tangential also presented a regular fluctuation, and has the largest in radial direction, the least in horizontal direction.
Generally, these curves to some certain extent, reflect the trend of these forces, so further analysis can be used as a reference, these results will help us better carry out parts design of the structure and material selection.
Pan: Mechanical Science &Technology, Vol.20 (2004) No.3, pp.42-44 (in Chinese)

As an important performance of woven composite materials, the impact resistance was researched by many material science researchers in the world. [1-3] This paper studied the low-velocity impact properties of three dimensional woven composite materials with orthogonal, quasi-orthogonal and angular interlocking structures, analyzed their characters through the curves of absorbed energy-displacement and discussed the influence of structure unit’s distribution on the low-velocity impact property of the 3D woven composites.
Forming of three-dimensional woven composite materials.
The composite materials were fabricated by means of VARI (Vacuum Assisted Resin Infusion) process [4].
As impact side changes, break time and break point of the composite materials change because the yarns absorbing energy are specific in three-dimensional woven composite materials.
Acknowledgements This work was financially supported by the Zhejiang Natural Science Foundation (Y4100118), Zhejiang Sci-Tech University Research Project (0801802-Y) and the Excellent Young Talents Foundation of Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-Tech University).

In the process, a lot of marine soft soil materials is inevitably encountered with in engineering practice.
The boundary condition such as the bottom of the marine soft soil materials model is fixed in all three directions and the side face of the marine soft soil materials is fixed in the X,Y directions.
Fig.2 The specific detail of the bucket foundation The properties of marine soft soil materials is listed in the following section, c=20kpa, , ,,the coefficient of friction between bucket foundation and marine soft soil materials is 0.2.
In the process, the marine soft soil materials of the passive region appears shear deformations, the bucket and the marine soft soil materials is separated with each other in the active region.
Chinese Journal of Geotechnical Engineering,2000,22(6):691-695.

The characteristic of petroleum contaminant adsorption materials and the estimation of adsorption attenuation XIA Yu-bo1, a, YANG Yue-suo1,2,b, DU Xin-qiang1,c 1Collage of environment and resource, Jilin University, Changchun, 130026, China 2School of Earth & Ocean Science, Cardiff University, Cardiff, CF10 3XQ,UK asosodragon@sina.com, bYangY6@cardiff.ac.uk, cduxq77@163.com Keywords: Adsorption materials, Freundlich equation, Natural attenuation, Petroleum contaminant Abstract.
Materials The crude oil was sampled from waste petroleum pit (WPP) which is in the south of study site in Songyuan China.
Philp, “Potential for Amorphous Kerogen Formation via Adsorption of Organic Material at Mineral Surfaces” Energy & Fuels, vol 8, 1994, p.1494-1497
José Ramón Isasi, “Sorption models in cyclodextrin polymers: Langmuir, Freundlich, and a dual-mode approach” Journal of Colloid and Interface Science, vol 337, 2009, p.11-18
Kolditz O., “Uncertainty assessment of contaminant plume length estimates in heterogeneous aquifers” Journal of Contaminant Hydrology, vol 87, 2006, p.73-95

Chandra, Constitutive behavior of superplastic materials, International Journal of NonLinear Mechanics 37 (2002) 461-484
Manabe: FE simulation of rectangular box forming using material characteristics from the multi-dome test, Journal of Materials Processing Technology 125-126 (2002) 772-777
Polini, A method to characterise superplastic materials in comparison with alternative methods, Journal of Materials Processing Technology 138 (2003) 417-422
Cheng, The determination of material parameters from superplastic inflation tests, Journal of Materials processing Technology 58 (1996) 233-246 [7] G.
Zhang: Material modelling data for superplastic forming optimization, Materials Science and Engineering A 410-411 (2005) 100-104

In this paper, homogeneous and pure layered cathode materials with PEG400 and PEG2000 were synthesized and investigated by co-precipitation method due to its better electrochemical performance than the material has no additive.
The elements of Na, Ni, Co, Mn derived from the materials were detected in Table 1.
Ajayan, Acs Applied Materials & Interfaces. 3 (2011) 2966-2972
Kamarulzaman, in International Congress on Advances in Applied Physics and Materials Science. 1400 (2011) 280-285
Sun, Materials Chemistry and Physics. 95 (2006) 218-221

These problems make it difficult to process composite materials.
Rzhevskaya, et al., Study of the geometric characteristics of carbon fiber fillers on the properties of polyphenylene sulfone, Materials Science Forum. 935 (2018) 5-10
Owens, An overview of recycling issues for composite materials, J.
Mrazova, Advanced composite materials of the future in aerospace industry.
Applied Polymer Science. 65 (1997) 901-907

Introduction The filter materials of air-cooled condensate polishing unit contain ion exchange resin particles, powdered resin and fiber powder, which soaked in water will always have some impurities including residual raw materials, organic impurities from the skeleton and functional groups degradation [1-2].
Experimental Materials Three kinds of filter material samples were provided by power plant.
Conclusion The effect of water-filter ratio is significant to particle resins, but has little effect on the powder materials.
Tianjin Science and Technology Press: Tianjin, China; 1984: 77
Journal of Engineering for Thermal Energy and Power, 01, 2012

Biopolymers are the materials that are decomposed by microorganisms and obtained from renewable and non-renewable raw materials, as well as the materials that are not decomposed by microorganisms, but obtained from renewable resources.
Traditional polymers are made from petrochemical raw materials.
Galyavetdinov, Design of packaging materials based on polylactide and wood filler, International Journal of Engineering and Technology (UAE), pp. 1089–1091, 2018
Martin, Coextrusion of biodegradable starch-based materials.
Voronin, Analysis of physico-mechanical properties of composites based on polylactide and thermally modifie wood fibers, Materials Science Forum, pp. 202-206, 2016

One such innovative approach involves incorporating these waste materials into construction materials, primarily concrete.
Advances in Materials Science and Engineering,(2018), p. 1-8
Materials, 14(9), (2021), p.2337
Construction Materials, 1,(2021), p. 39-62
Advances in Material Science and Engineering, (2021), p. 265-272