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Graphene oxide has been studied as sensing material for the humidity detection in this paper.
All results implied that the graphene oxide was a potential humidity sensing material for practical use.
Experiment Chemical and Materials GO (0.5mg/ml, carboxyl ratio ~5.0%) was bought from Nanjing XFNANO Materials Tech Co., Ltd.
Novoselov, Graphene sensors, IEEE Sensors Journal 11 (2011) 3161–3170
Zhu, Humidity sensing properties of Pd2+-doped ZnO nanotetrapods, Applied Surface Science 253 (2007) 3168–3173

Hardened cement paste and concrete are porous materials.
As discussed above, hardened cement paste and concrete are very porous materials; chloride ion from seawater or deicing salts can penetrate into concrete.
The following conclusions can be drawn: • Hardened cement and concrete are very porous materials.
C.: Physical structure of hardened cement pastes - a classic approach, Materials and Structure, Vol.19 (1986), pp. 423-436
Mann.: Permeability of portland cement paste, ACl Journal Proceedings, 51 (1954), pp. 285-98

Since the PDLC was born in Kent State University in 1983 [1, 2], it has emerged as a new important class of chemical, electrical, and optical materials for making large and flexible solid liquid displays.
Now the PDLC film’s materials have been the subjects of much interest due to their wide applications ranging from switchable windows to large area LCD devices.
However, in order to detain good PDLC devices, preparation of PDLC materials is critical.
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.

Materials and methods Reactor construction.
Laboratory-scale anaerobic landfill reactor Materials.
Journal of Environmental Sciences, 2006(04): 625-628 [3] El-Fadel M, Findikakis A N, Leckie J O, Modeling leachate generation and transport in solid waste landfills.
Canadian Journal of Civil Engineering, (1989) 16(3): 317-325
Journal of Environmental Engineering, (2009) 135(10): 901-909

A design of a large self-anchored eco-block retaining wall The raw materials of block used in a specific that put the ecological concrete additives in the ordinary concrete ,to ensure the strength of concrete, form this prerequisite reducing the alkaline of concrete, to make it has high strength, high porosity and rational pore size characteristics.
If fill water purification materials, can play the targeted role of water purification, has a perfect ecology.
[J].Geotechnical Testing Journal, 2003, 26 (4): 382-389 [3] Chungsik Yoo.
Zhejiang science and technology of water resources, 2011.9,177(5), 20-21, 36.
Journal of Geotechnical and Geoenvironmental Engineering 2006, 132(12): 1538-1548 [12] Collin James G.

In this mode, valuable components are recycled into building materials, raw materials for light industry, production of hollow bricks and tiles, ingredients for cement, etc in order to finally reduce tailings dam collapse and piping damages for the improvement of the mining environment and enhancement of economic benefits [12].
Zhang: Journal of Jiangxi Agriculture, vol. 22 (2010) No.12, p.181
Huang: China Land Science, vol.14 (2000) No.4, p.35
Yun: Journal of Huazhong Agricultural University, vol.6 (2011) p.1
He: Journal of Soil and Water Conservation, vol.17 (2003) No.6, p.171

Materials and Methods To study the effect of contact length on phytoremediation, we constructed a laboratory-scale wetland system (LS-CW) using acrylic sheets, gravel, and sand as media for the filter (Figure 1).
Srivastava, "Microcosmic plant and fungi synergism-based filter to remediate the pollutants from industrial wastewater," Materials Today: Proceedings, vol. 77, pp. 322-327, 2023
Ismaeal, "Using A Subsurface Vertical Flow System to Remediate Municipal Wastewater," International Journal of Sustainable Construction Engineering and Technology, vol. 13, pp. 107-113, 2022
Sathyanathan, "Phytoremediation of domestic sewage using a floating wetland and assessing the pollutant removal effectiveness of four terrestrial plant species," H2Open Journal, vol. 6, pp. 173-187, 2023
Xu, et al., "Simultaneous bio-clogging mitigation and nutrient removal enhancement via sulfide addition in constructed wetlands," Chemical Engineering Journal, p. 166194, 2025

The red regions of Fig. 2 show that the relative density is large, and the material in these regions should be retained; the blue regions of Fig. 2 show that the relative density is small, and the material in these regions should be removed.
The optimal distribution of material can provide ideas for the improvement of the column structure.
Mechanical Science and Technology for Aerospace Engineering. 27 (2008) 1602-1605
Mechanical Science and Technology for Aerospace Engineering. 31 (2012) 118-121
Journal of Hunan University (Natural Sciences). 32 (2005) 39-42.

The features described contain those of geometric shapes, topological relationships, quality requirements, materials, designations and assembly, depicted in Fig. 4.
On this basis, the future properties of the model are emulated, estimated, predicted, and optimized with mechanics, materials science, kinematics, dynamics, hydraulics, and electromagnetics, and so forth, by the computer.
Liu: Chinese Journal of Computers, Vol. 29 (2006) No.7, pp. 1199-1208 (In Chinese)
Lin: Chinese Journal of Computers, Vol. 29 (2006) No.8, pp. 1408-1418 (In Chinese)
Li: Chinese Journal of Computers, Vol. 28 (2005) No.4, pp. 721- 730 (In Chinese)

Since the surface energy is an intrinsic property of materials, wettability is usually enhanced by the increase of surface roughness, especially by fractal structures [3].
Experimental procedure The material growtn was carried out in a horizontal tube furnace as shown in Fig. 1.
On the basis of this study, the ultrahydrophobic surface from hierarchical structure materials may have strong potential applications.
Acknowledgments: This research was supported by the National Natural Science Foundation of China (No. 51065009) and the Science Fund Project of Jiangxi Provincial Department of Education (No.
Ye and L.Cai: Chinese Journal of mechanical engineering Vol. 21 (2008), p. 77 [10] R.