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GAIM process have some advantages, such as lower injection pressure, lower warpage, better surface quality, lower material consumption, and shorten molding cycle time.
The simulation process includes: modeling, materials selection and characterization, flow process analysis, results display and reports-making.
The meshing results were shown as Fig.1 and Fig.2. [7-10] The simulation analysis conditions of gas injection molding included: injection temperatures ( 210℃, 220℃, 230℃, 240℃, 250℃);melt/gas delay time ( 0.1s, 0.3s, 0.5s, 0.37s, 0.9s); pre-injection shot radio ( 94%, 96%, 98%, 100%);gas injection pressure ( 12MPa, 15MPa, 18MPa, 20MPa);simulation materials: PP.
Natural sciences journal of JILIN university.2002.vol.32(2):p.83-86 [4] Yanxing Song, et al.
Jilin University (Engineering Science). 2004.vol.32 (2): p268-271 [6] Moldflow-Gas, Moldflow Reference Manual, Moldflow Pty.Ltd.1993:1506 [7] Huamin Zhou,Dequn Li.Filling simulation and gas penetration molding for gas-assisted injection molding.Applied Mathematical Moldelling.2003.(27):p.849-860 [8] Kui Chen.

The part of the experiment Materials and instruments.
On one hand, high temperature and pressure degumming could remove the non-cellulose materials on the fibers so as to improve the content of cellulose.
References [1] Xiaofeng Lu, Fangli Su and Linfei Zhou: Journal of Northwest Forestry University,2011,26(4),in Chinese
[3] Weikun Mao and Jian Hua: Progress in Textile Science & Technology ,2010,(2), in Chinese
[4] Shuyu Fu,Jianyong Yu and Lili Wu: Progress in Textile Science & Technology ,2008(1) , in Chinese

Introduction Typical sandwich structures consist of a lightweight core material bonded to two thin face sheets of a stronger and stiffer material such as carbon/epoxy.
Stitched composite materials have been evaluated in recent years for structural applications, including stiffened wing structures for commercial aircraft.
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Introduction Magnesium alloys are the lightest structural materials with specific strength (strength-to-weight ratio) exceeding those of many steels and aluminum alloys.
Therefore, Mg and its alloys are gaining interest in many industrial and research communities for structural materials that can potentially meet the high demand for low fuel-consumption.
Tome´, International Journal of Plasticity, 24 (2008) 867-895
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International Journal of Fatigue.32 (2010),p.808–814
Momeni.Effect of hot working on flow behavior of Ti-6Al-4V alloy in single phase and two phase regions[J].Materials and Design.31(2010):p.3599~3604
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[8] Jong Taek Yeoma, Jeoung Han Kima, Nho Kwang Park.Ring-rolling design for a large-scale ring product of Ti-6Al-4V alloy[J].Materials Processing Technology.187(2007) ,p.747-751
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Baumana, Faculty of Robotics and Integrated Automation, Mechanism and Machine Science department 3Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4 Maliy Kharitonyevcky pereulok, Moscow, Russia.
It is assumed that due to the hydrogen diffusion material’s strength parameters are changing locally to the defect.
To describe analytically such impact authors propose a dependency between materials CFT KIc and average hydrogen concentration taken near the crack tip in the specifically chosen prerupture area: A={x∈[0;ai]}.
Thus KIc tend to decrease as the hydrogen diffusion proceeds and its dependency on the prerupture area average concentration Cat=ACx,tdx is defined as follows: KIc-KIc*KIc0-KIc*α1+ΩCa(t)C0β1=1, (5) where α1,β1 are parameters; KIc0,KIc* are materials CFT’s for non-hydrogenated and supersaturated material respectively; Ω=C0/C* is a compound characteristic of material-environment pair, where C* is material’s limiting solubility of hydrogen.
[4] Romanov, A.N., Tarakanov, P.V., Shashurin, G.V.: Engineering model of crack development in metals and alloys under corrosive hydrogenous media, In: Journal of Machinery Manufacture and Reliability, 43 No. 6 (2014) p. 503-507

The density and mechanical properties of sintered and sintered forged materials are shown in Table 2 which presents the difference of two kinds of materials.
The mechanical properties increase about 10% after the materials were forged.
This is consistent with the superplastic mechanism of ceramic materials.
[10] Fumihiro Wakai, Naoki Kondo and Yutaka Shinoda: Solid State & Material Science Vol. 4 (1999), pp.461
Han: Key Engineer Materials.

Under the condition that the competition evolves from single enterprise to supply chain, China's food industry must rely on their industry characters and trends to broad the management vision from suppliers of agricultural materials to the wholesale and retail enterprises, logistics distribution companies and the end-users at last.
The microbial invasion to raw materials may result that the safe quality time can not meet the expected shelf life of final consumers.
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Of course, the theory and practice of construction and building materials do not stand still.
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Chernyavski, Energetic state and diagnostics of cement materials.
Lotov, Nanodispersed systems in technology of building materials and units, Bulletin of the Tomsk Polytechnic University. 311 (3) (2007) 84-88, 141-142
Komokhov, Hardening processes of mineral binders in the aspect of structural mechanics of concrete, Modern problems of building materials science: second academic readings of the Russian Academy of Architectural and Building Sciences: materials of the international scientific and technical conference, Kazan. 1 (1996) 3-8