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Materials and methods Materials.Kitchen waste which after cooking leftovers contains highly oil and salt take from Liaoning Provincial Academy of Environment Sciences canteen.
Cow dung and kitchen garbage made into fermentation of raw materials which solid content is 10% in proportion of VS=3:1 throw fermenter.
m=the total concentration of mixed materials Xi=the single raw material weight Mi=a single kind of raw material of total solids content W=the need to increase the water quality [2] Results and discussion Analysis of daily gas production.
Wastington DC: Science publisher,1998
CHINESE JOURNAL OF BIOPROCESS ENGINEERING, 2008,6(4):45-49

Energy & Environmental Science, 2011. 4(9)
Journal of Power Sources, 2021. 501
Journal of Energy Storage, 2021. 39
Science (New York, N.Y.), 2011. 334: p. 928-35
Journal of Power Sources, 2017. 349: p. 94-104

With this material, the line distance, laser power, engraving speed, and pulse frequency of the laser change the oxidation thickness.
Previous studies address the development and application of laser technologies to fabricating many metal and non-metal materials.
They produced good-quality 2-3 μm steep structures with an angle of 80o in ceramic materials.
Shafeev: Applied Surface Science Vol. 252 (2009), p. 5346-5350 [4] C.J.
Tsai: Journal of Materials Processing Technology Vol. 198 (2008), p. 419-425

Learned from the Hong Kong experience of sorting the construction waste at resource, this paper clarifies the recyclable materials and their use in the silts, which is shown in Table1.
Table1: The recyclable materials of the silts and their appliances Recycled Materials Appliances Rubble Aggregate As base material for road construction, crushed aggregates for laying the foundation, base filling material for drainage, for concrete making and other uses Asphalt As aggregates and base filling materials Excavated Materials As filling materials Public Filling Materials As filling materials Coal Ash For concrete making, land and ocean filling, road construction, steel skeletons making Metal For new metal products making Glass As carburetor bedding materials(substituting sand and aggregate)\gravel backfilling material for wall constructing\rubble for road constructing, for bedding backfilling Plastic For plastic timber making, which can be used to beautify the landscape or for gardening and the hydraulic engineering Rubber For rubbery roofing, playground rubbery cushion making Cellular Plastic For light concrete (for unstructured projects) making On the one hand, the idea
The early system does not change the chemical capabilities of the material, through simple processing and recycle; the late system mainly through chemical and biological ways recycles the materials rest after having gone through the early system.
Thus, the government should carry out the advocation and supported by Architecture Community via different media to advocate the security and eco-friendliness of the recycled building materials.
References [1] Meng H, in: The Journal of Hebei forestry Science and Technology, 5 (2010), p. 92-94 (In Chinese) [2] CHEN Ziyu, ZHENG Su, ZENG Hua, in: Journal of Nanjing XiaoZhuang university, 6 (2006), p. 87-90 (In Chinese) [3] WANG HX, HAN Q, SONE SB in: Architectural technology of heaping mountain in landscape by garbage-Tsuiping South Park construction in Tianjin. 12(2009), P.82-84 [4] MI Wei, LN Bowei, in: Journal of Landscape Research, 3(2011), P.83-85 [5] WANG DY, LU YJ, in: The theory and practice of landscape ecological forest based on the experimental of South Asia tropical landscape ecological forest at Wutong Mountain in Shenzhen, 1(2008), p.60-63 (In Chinese) [6] Information on http://www.szpl.gov.cn/

Experiment research Spiral bevel Gears closed extrusion new technology New technics process of spiral bevel Gears without fly side is as follows: eyeballing inspection of raw materials and conventional physical and chemical testing → cutting material → semi-finished product small non-oxidized heating → manufacture semi-finished product (upsetting-- punching--reaming) → coarse extrusion → precision extrusion → surface cleaning → the follow-up machining and heat treatment → test and storage .
In order to satisfy the extrusion requirements for steel-plastic, when extrusion of high-strength steel materials often choose to be above the phase transition temperature extrusion .
Compared with the open die , required extrusion distortion force reduced 50% , increase material utilization 15%, debase electric power consumption 50%, with significant economic benefits .
Journal o f Materials Processing Technology, 1995. 45(1-4) : 25-30
[3] SadeghiM H.Journal of Manufacturing Science and Engineering, 2003,125 (4) :753-762 .

For a simulation of pultrusion processes with polyester resin C­L ISO 112 G, curing kinetic model should be developed for the matrix material.
Watson, Weight Optimal Design of Lateral Wing Upper Covers Made of Composite Materials, Eng.
Series: Journal of Physics: Conf.
Series: Materials Science and Engineering, 96, 012012, 10 P
In: Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (Eds.

The steel industry is the biggest consumer of refractories, about 70% of the total production of these materials.
Introduction Refractories are ceramic materials that are designed to withstand a variety of severe service conditions, including high temperatures and corrosion.
These materials are often combined with carbon and graphite and used in environments where highly basic conditions exist [1].
The influence of temperature changes on the characteristics and properties of the studied materials is analyzed by thermo-gravimetric and differential thermal analysis.
Ayadi, Mg(OH)2 dehydroxylation: A kinetic study by controlled rate thermal analysis (CRTA), Solid State Sciences 11 (2009) 1028-1034.

Journal of Sound and Vibration Vol.330(2011).p.5716-5735
Journal of Central South University of Technology  Vol.19(2012),p,384-392
Koivo.Modelling and Control of Excavator Dynamics during Digging Operation.Journal of Aerospace Engineering ASCE  Vol. 1(1996),p.10-12
International Journal of Automation and Computing Vol.7(2010), p.349-358
International Journal for NumericalL methods in engineering Vol.85(2011),p,1073-1102

Since most structures works under dynamic and complicated stress state, we should study how such behaviors affect the structures and their materials.
In regard to loading and strain rates in cases where loads are imposed on materials, Lindholm [5] and Meyers [6] have determined that the load is static when the strain rate is not more than 5 s-1 and dynamic when the rate is more than 5 s-1.
References [1] Shiratori E. and Ikegami, K., A New Tension Testing Machine with Flat Specimen, Journal of the Society of Material Science, Japan, 16 - 165, (1967), 51 - 57.
S., Dynamic Deformation of Metals, Behavior of Materials Under dynamic Loading, ASME, (1965), 42
A., Dynamic Behavior of Materials, (1994), John Wiley & Sons Inc., pp. 296 - 302

Through establishing a set of practice material especially the practice instruction, arranging the key content and making practice questions, checking the internship diary and decorating special reports, strengthening the performance appraisal of practice and other measures, to help students actively participate in construction activities and solve practical issue.
Through cultivating talents for some large-scale construction enterprise, develop science and technology service and hold academic exchanges, our school has already built 20 long-term practice base units.
Journal of Hunan University of Science and Engineering, 2006(01) [2] Liu ming jiu, Li you yong, Chang jing ling, Ru zhen gang.
Journal of Henan Institute of Science and Technology, 2010(04) [3] Zhang hong tian, Zhang hui yan, Guo xiu ying, Zhang qing jiu.
Journal of Social Work, 2007(01)