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The pretreatment processing have obvious influence to the anaerobic degradation, and among the three steps of anaerobic digestion: hydrolysis, acidogenic, methanogenic, generally accepted the rate-limiting step is the hydrolysis of lignocellulosic materials[3], thus the physical, chemical and biological pretreatment aiming at remove lignin and hemicellulose are often used.
Materials and Methods Feedstock and inoculum Rice straw was collected from a farm of Huazhong Agricultural University.
Hydrolysis of lignocellulosic materials for ethanol production: a review.
Journal of Hazardous Materials 2009;17(1):366-373
Journal of Agro-environment Science, 2007;26(5): 1973－1976.

Introduction As the worldwide largest fast-growing tree species for forestation[1,2], Eucalyptus features uniform texture, high strength, beautiful patterns, with great potential of large-scale production of high value-added wood products and wood composite materials.
Creep Test Materials, equipment and principle.
When study on rheological property of the material, as long as we obtain one integral equation, another equation can be obtained accurately.
Journal of Beijing Forestry University Vol. 10(2) (1988), p. 88
Journal of Northeast Forestry University Vol. 15(5) (1987), p. 1

A large type of high performance polymer materials called BCB are filled the gap between the dies functioning as glue [7].
The thermal conductivities of these two materials are less than other materials, which are only 0.5 and 0.3 W/m·K, so the grads are very big.
Acknowledgment Authors would like to acknowledge the State Key Program of National Natural Science Foundation of China with the Grant No. 90607003, 61131004 for supporting the project.
Balasubramanian, et al, A study of thermo-mechanical stress and its impact on through-silicon vias, Journal of Micromechanics and Micro engineering. 18 (2008) 075018-075031
Xu, et al, A wafer-level 3D packaging structure with Benzocyclobutene as a dielectric for multichip module fabrication, Chinese Journal of Semiconductors. 30(2009) 106003.1-106003.6.

Fillers, in the form of particulates are often added to polymeric materials to enhance their processability and mechanical compound properties, as well as to reduce material costs.
Experimental Details Materials.
Suresha, Effects of Fibers and Fillers on Mechanical Properties of Thermoplastic Composites , Indian Journal of Advances in Chemical Science 2 ,pp 28-35, 2014
[11] Tyagi, Rajnesh, Processing Techniques and Tribological Behavior of Composite Materials, a vol. at ACME book series, Engineering Science Reference
[12] Witold Brostow, Vera Kovačević, Domagoj Vrsaljko and Jenna Whitworth, TRIBOLOGY OF POLYMERS AND POLYMER-BASED COMPOSITES, Journal of Materials Education, Vol.32, pp. 273 – 290, 2010

The paper presents research of the possibility of using potassium carbonate and bicarbonate as inhibitors in the compositions of aqueous fire-extinguishing substances for the elimination of fires associated with the burning of solid and liquid combustible materials.
Modern science considers the process of burning hydrocarbons as a complex of chemical chain reactions.
Eastern-European Journal of Enterprise Technologies. 5(1 (119) (2022) 53–61
In Materials Science Forum. 1038 (2021) 514–523
Zhartovskyi, Use of polyhexamethyleneguanidine salts in compositions of aqueous fire-extinguishing agents for fire protection of objects made of cellulose-containing materials.

Materials and methods 2.1.
Medicine and Science in Sports and Exercise, 15(5), 376-381
Journal of sports sciences, 4(3), 169-184
Journal of biomechanics, 20(5), 547-551
Journal of biomechanics, 25(6), 637-643.

The gum can be tailored for many applications based on the very large chains and functional groups which can be blended with other low- and high–molecular-weight materials to achieve new materials with various physicochemical properties.
Their growing role and application in the pharmaceutical industry is attributable not only to the fact that they are biodegradable and toxicologically harmless raw materials of low cost and relative abundance compared to their synthetic counter parts [1, 4, 5], but also because natural resources are renewable and if cultivated or harvested in a sustainable manner, they can provide a constant supply of raw material.
The solid plant material used in the study was GM stem bark.
Okafor, The rheological properties of grewia gum, Nigeria Journal of Polymer Science and Technology, 2(2001) 169-175
Chukwu, Water vapour permeability of aqueous-based grewia gum film, Nigeria Journal of Polymer Science and Technology, 2 (2003), 176–182

The existing working mode only change the form of the work and the material, knowledge information carrier have changed but made no reforming in traditional archives management.
[2]Jianping Wang.The construction of archives digitalization in college[J].Journal of Changzhou Institute of Engineering Technology,2007(3)
[3]Haifei Cai.The construction of archives informatization[J].Science and Technology Development and Economy,2007(12)
[4]Zhimei Yu.Feasibility study on archives informatization in college[J].Science and Technology and Economy,2006(3)
[5]Yong Rao.On the digital construction of university archives[J].Journal of Electronic Science and Technology,2004(2).

The major materials of the rock-fill dam are as shown in fig 1.
Fig 1 Typical sections and materials district Fig 2 3D FEM mesh During the calculation of 3D FEM, the process of construction stage and operation stage of dam body is considered.
Concrete cutoff wall and base are both as the linear elastic materials, whose parameters are as shown in table 3.
Shanghai: Shanghai science and technology press, 1990: 46-60(in Chinese)
Chinese journal of geotechnical engineering, 1997, 10(4): 64-71.

The PHBV are solid, easily broken, while natural rubber is excessive elastic materials.
Methodology Materials.
China), and natural rubber latex are raw materials for biopolymer fabrication.
Gil, Modification of poly(3-hydroxybutyrate)- co-poly(3-hydroxyvalerate) with natural rubber, Journal of Applied Polymer Science. 116 (2009) 718-726
Zhou, Cellulose nanocrystals as green fillers to improve crystallization and hydrophilic property of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), Progress in Natural Science: Materials International. 21 (2011) 478-484.