Search results

Then, the materials from MSW would be recycled as energy or resources.
On the basis of in-depth analysis and study the life garbage matrix composition and garbage component properties, MSW was sorting through a series of cooperation equipment for organic matter, magnetic materials, inorganic brick, plastics, paper, fabric, etc.
Organic matter was used to compost organic fertilizer; mixed plastics from MSW was used to produce plastic-wood composite materials; fabric, paper and other combustible materials were used to produce refuse derived fuel(RDF), which is a fuel with high calorific value.
Combustible materials as paper and fabric after class preparation were used to produce RDF, which were pure and simple, especially no metals.
Journal of Environmental Management 62(2001),p,3-19 [7] Wang J, Han L, Li S, Waste Management (28)2008.

Higher teaching process suggested the application of computer technology 4.1 Highlight the application of computer technology to the advantage of the higher education The rapid development of science and technology applied to all walks of life especially that reflected out of the traditional blackboard teaching model in higher education, instead of relying on computer technology and flexible teaching mode.
In the context of the information age, teachers combine traditional materials, the use of computer technology and multimedia network technology independent organization of contents, the boring book knowledge with a more vivid way of deduction, enriching the atmosphere in the classroom; students mobilized initiative to make it easier to accept.
Instructional Systems and Learning Sciences, When Universes Collide [J], Educational Technology, 2004 (5-6) [4] Daniel.
The Parallel Universes of the Learning Sciences and Instructional Design.
Computer Technology Integration and Student Learning: Barriers and Promise [J], Journal of Science Education and Technology, 2008, 17 (6): 560-565

Parameterized design for the Furniture product based on Solidworks Dan Su12, a, Jun Shen1, b,* and Hongmei Zhao 2, c 1College of material science and engineering , Northeast Forestry University , Harbin, P.R.China 2 College of Mechanical Engineering ,Heilongjiang Institute of Science and echnology , Harbin,P.R.China ✉Correspondent author: Shen Jun，Prof. of Material Science and Engineering College, Northeast Forestry University, Harbin, China 150040 shenjunr@126.com ae-mail: designer_sudan@163.com; bshenjunr@126.com; chmz67890@163.com Keywords: Parameterization,Solidworks,Furniture Product Abstract.
Acknowledgements This research is supported by the National Natural Science Foundation of China ( 31070488), Harbin city science and Technology Innovation Talent Research Fund ( 2010RFXXS023 ), environmental protection and public industry research and development of special ( 200809120) ,Scientific and Technological Project of Heilongjiang Province of China (11553097) and educated program of Heilongjiang Province of China (11541311).The authors are thankful to coordinators for technical assistance and help in carrying out experiments.
References [1] Huibin Qin, SolidWorks-based parametric design of stacking machine systems, Journal of North China Institute ,2004, No.1, p.105

Materials and methods Samples and chemicals Pigments were extracted by sodium hydrogen carbonate from chestnut shell(90% purity).Bean curds and flours were obtained from W-mart .Standard caramel pigments were purchased from Beijing Xiaguang Additives Shop(95 %purity).
[2] Lili Cheng, in: Chestnut, Beijing science and Technology Press, Beijing(2009), p.136-145 (In Chinese)
[8] Rui Duan, Junjie Zhang: Journal of Huaihai Institute of Techology Vol.9(2000)，p.61-63 (In Chinese)
[12] Qi Chen, Chunxin Chen and Junmin Zhang: Food Science Vol.23(2002), p.52-53 (In Chinese)
[18] Deyi Zhao,Wenhai Gao and Chengwen Hua: Shaanxi Forest Science and Technology Vol.2(2003), p.13-47 (In Chinese)

Materials Science Forum, (2020) 1006, 166–172
Determination of the Fire-Retardant Efficiency of Magnesite Thermal Insulating Materials to Protect Metal Structures from Fire, In Materials Science Forum, 1038 (2021) p. 524-530
Series: Materials Science and Engineering. – Innovative Technology in Architecture and Design (ITAD 020). 907 012036
Key Engineering Materials. 864 115-121
In Materials Science Forum. 1006 (2020) p. 179-184

., Tianjin Polytechnic University, Tianjin 300160,China 2Institute of Physics, Chinese Academy of Sciences, Beijing 100080,China a Niupingjuan@tjpu.edu.cn, b Hu_hairong2002@yahoo.com.cn , cWerfriend@126.com, d Wxwang@aphy.iphy.ac.cn, e Shangxunzhong@yahoo.com.cn Keywords：Resonant Tunnelling Diode (RTD); Heterojunction Phototransistor Transistor (HPT); Monolithic Integration; Negative resistance device Abstract：We designed the monolithic opto-electronic integrated circuit composed by Resonant Tunnelling Diodes (RTD) and Heterojunction Phototransistor (HPT).
The material structure and technological process of the device is introduced in detail.
[4] S.Noda, Y.Kobayashi, T.Takayama, K.Shibata and A.Sasaki:IEEE Journal of Quantum Electronics, Vol.28(1992), p.2714

Generally construction safety evaluation consists of four parts: human factors; construction materials and machines; management factors; environment factors.
Table 1 Weight of each index in safety assessment system Category and factor Weight Human factors B1 Education background C1 0.064 Safety technical expertise C2 0.116 Safety awareness C3 0.210 Construction materials and machines B2 Mechanical equipment of loading and unloading safety control C4 0.157 Equipment reliability C5 0.053 Equipment maintaining C6 0.031 Construction material quality C7 0.053 Materials store C8 0.095 Management factors B3 Setup for safety administration C9 0.025 Setup for safety specification C10 0.055 Safety educational training C11 0.030 Safety-check C12 0.016 Construction site safety protection C13 0.009 Safety accident prevention C14 0.012 Safety investment C15 0.006 Environment factors B4 Weather C16 0.040 Construction site lighting C17 0.007 Noise and dust C18 0.021 Extension Comprehensive Evaluation.
References [1] CAI Wen, YANG Chun-yan, LIN Wei-chu: Extension Engineering Methods（Science Press, Beijing 1997）
[2] SUN Shou-peng, YU ZHi-jun, GE Hong-xiang: Journal of Qingdao Technological University.

Introduction Alumina is a ceramic material widely used in industrial applications at high temperatures.
The synthesis of nanocrystalline ceramic materials offers new opportunities for their developments.
Nanocrystalline materials are structurally characterized by a large volume of grain boundaries, which can significantly alter its physical, mechanical and chemical properties [2].
Taheri-Nassaja Sarpoolakyb and H, Synthesis of an Alumina-YAG Nanopowder Via Sol-Gel Method, Journal Compounds of Alloys, 2007
Dissertation (MSc in Materials Science) - IME, 2011.

Fig. 1 Bracket solid model Fig. 2 Bracket finite element model The material of the gun bracket is used the ZL114A aluminum alloy, and the material parameters is shown in Table 1.
Table 1 Material parameters of the gun bracket material Density (Kg/m3) Modulus (GPa) Poisson's ratio ZL114A 2700 70 0.33 Boundary Conditions and External Excitation The gun bracket is connected with platform with 32 bolts, and platform is fixed to the base with 19 bolts.
Through the comparison with the given material parameters, it indicates the strength of the bracket is up to requirements.
,Nanjing University of Science and Technology, China 2001) (In Chinese)
[3] Dongjie Zhao, Guigao Le: Journal of Projectile, Rockets, Missiles and Guidance. 28(4) 168-171 (2008) (In Chinese)

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Preparation of Calcium Carbonate / Poly(lactic acid) Composite (CCPC) Hollow Spheres H.
Introduction Materials having a high bioactivity or bioresorbability play an important role in the recovery of bone defects.
Formation of porous materials using biodegradable microspheres would have the possibility to obtain easily three-dimensional designed materials for bone grafts[5].
A large amount of vaterite in calcium carbonates as the starting material disappeared after the spheres formed.
Acknowledgements This work was supported in part by a Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (No. 14380398) and grant from the NITECH 21st Century COE Program "World Ceramics Center for Environmental Harmony".