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Last several years, although TCO materials have been developed vigorously, it still has a lot of restrictions in the applications.
Investigating its reason, most of the TCO is n-type conductive material, and the conductive of n-type conductive material is much bigger than the p-type conductive material.
Therefore, getting the excellent performance of the p-type TCO materials is expected to become the essential subject of the TCO applications.
Professor Hosono of Tokyo university first found the p-type delafossite structure TCO CuAlO2 [1], the findings are published on the nature journal in1997.
Turner, Science 280 (1998) ,p.425

After the advance of the face, we use high-moisture quick-setting material backfill the heading side near the goaf, and use filling templates to mix 2 kinds of filling materials until its solidification.
Basis on the carriage，we design the feeding system between and filling pump, which achieve automatic unloading filling materials from the container material box to feeding system, then sent to the filling pump.
The dry mix CHCT filling material, which is produced by dedicated production line on the ground according to the design ratio, is transported to the underground pump station in bags or special containers.
Acknowledgements This work was financially supported by the Anhui Province Higher school science and technology innovation team to plan (2006KJ005TD), Dr master in Anhui University of Science and Technology fund (2006yb55).
Journal of Coal Science and engineering 1998(1) [4] Increasing Coal Absolute Permeability in the San Juan Basin Fruitland Formation.

Polyvinylidene fluoride (PVDF) is one of the popular membrane materials due to its outstanding properties including thermal stability, chemical resistance and excellent mechanical strength and has been widely used for MD [2].
These properties coupled with its intrinsic hydrophobicity have made PVDF popular as a membrane material in many membrane processes such as membrane-based gas absorption, MD and other types of membrane contactor applications.
Materials and Methods Materials The materials that were used in this experiment were PVDF polymer (MW = 440,000 g/mol) was purchased from Sigma–Aldrich Chemical Co.
Alsalhy, Hydrophobicity enhancement of poly (vinylidene fluorideco-hexafluoro propylene), Journal of Polymer Science and Technology,1 (2015)1-9
Journal of Physical Science, 30(2019)207–221.

The filter design usually uses specific materials that can absorb X-ray beams effectively, especially low energy.
According to Bushong [6], several materials can be used as X-ray radiation compensation filters.
Balac, Principle Of Radiographic Images: An Art and A Science 6th Edition.
,” British Journal of Radiology, vol. 95, no. 1130. 2022
[6] Stewart Carlyle Bushong, Radiologic science for technologists, 10 th ed.

The problem of which fireproofing material should be choose and how to make fireproofing measure needs to resolve.
The problem of which fireproofing material should be choosed and how to make fireproofing measure needs to resolve.
The measures include: thickness of fireproofing material, fireproofing position and fixed mode.
The research demonstrates the two fireproofing material can not supply effective protection for FRP.
China Civil Engineering Journal.2007,40(6):26~31,41

Plasma immersion ion implantation (PIII) method is often used to cleaning and enhancing mechanical properties of the surface of materials.
Introduction Plasma immersion ion implantation (PIII) is an ion-implantation technique, which has been optimized for surface modification of materials such as metals, plastics, and ceramics [1].
This PIII method using a GD source is a typical example of environmentally clean dry processing of materials, hence industrially relevant nowadays.
Plasma Science Vol. 34 (5) (2006), p. 1757
Ichimura: Journal of Mat.

NS2010153) and the Natural Science Foundation of Jiangsu Province (BK2004129).
Hahn: Materials Letters Vol. 57 (2003), p. 4660
F. de Farias: Journal of Colloid and Interface Science Vol. 239 (2001), p. 584
De Jonghe: Journal of Materials Science Vol. 32 (1997), p. 6001
Zhou: Journal of Colloid and Interface Science Vol. 252 (2002), p. 347

Materials and methods Cotton stalk and pretreatment Cotton stalks were harvested from a cotton field in Alar city, Xinjiang, China in 2010.
Bostanci: Production of xylooligosaccharides by controlled acid hydrolysis of lignocellulosic materials.
Journal of Dairy Science Vol. 74 (1991), p. 3583-3597
Environmental Science Vol. 23 (2002), p. 36-39
Journal of China Agricultural University Vol. 9 (2004), p. 7-11

Cause 1, not suitable of parameters setting and Cause 2, not enough raw materials.
Materials Letters 270 (2020) 127708
The Science and Technology of Materials in Automotive Engines, P.110-131
Woodhead Publishing Series in Electronic and Optical Materials, P.59-92
Materials Science Forum, Vol.962, 181-188

The raw materials of the composites studied in this paper mainly contain micron copper powder (micro-Cu), low density polyethylene (LDPE) and some additives.
The flat samples of two types of composite materials were fractured by a tensile testing machine.
In the process of raw materials mixing, copper particles can only exist between LDPE particles, so the uniformity of them is significantly affected by the particle size of LDPE.
Because of the surface roughness and hydroscopicity of solid materials, the liquid drop would spread slowly on the solid surface, and the contact angle shows a decline trend with time.
Study on electrochemical behavior of nano-ZnO modified alkyd-based waterborne coatings, Journal of Applied Polymer Science. 113 (2009) 2232-2237