Search results

Thus the processing of these materials culminates in the production of a large quantity of substances (some aggressive to man and environment) that have no immediate application, which results in an interference in the balance process of ecosystems.
Characterization of waste as aggregate Casting sand • Specific mass = 2,60 Kg/L • Unit mass = 1,16 Kg/L • Content of powdery materials = 8,8 % Blast furnace slag • Specific mass = 2,43 Kg/L • Unit mass = 1,05 Kg/L • Content of powdery materials = 4,9 % Determining the adequate composition.
The trials were firstly done with the following materials: cement, blast furnace slag, casting sand, metakaolin, superplasticizer and medium sand.
Critical Reviews in Environmental Science and Tecnology, p. 325-396, EUA, 1998
Journal of Hazardous Materials, V. 24, n. 2-3, p. 225-230, 1990

Lastly, the simulation experiment of VAPT of C50 self-compacting concrete has been done in a building site. 2 Materials and Methods 2.1 Materials.
Materials used in this paper included as follows.
Fine aggregate: medium sand with fineness modulus of 2.6~2.7; coarse aggregate: crushed stone with particle size of 5～25mm, at a crushed value of 8.7%; superplasticizer: a high-effective water-reducer NOF-AS, prepared by Yinkaihuawei building materials Co., Shandong province, at a water-reducing ratio of 25%; fly ash: class fly ash with a specific surface area of Ⅱ 410m2•kg -1 and water demand rate 98%; cement: P.O42.5 manufactured by Gezhouba Cement Ltd.
Chemical Materials for Construction, 2007,Vol.23 No.2:45～48 (in Chinese)
Journal of Guilin University of Technology, 2005，Vol.25 No.1:50～53 (in Chinese).

The velocity of the determinations also indicated fresh and intact materials.
http;//www.script.org/Journal/Paper.aspx?
Materials testing.
[20] GBG: Materials testing and structural investigations- rebound hammer testing (Schmidt hammer). http://www.gbg.co.uk/?
J. of Minerals, Metall. and Materials, 16. (2009) 615-619

Introduction The alloy VT22 (5Al–5Mo–5V–1Cr–1Fe) is a high-strength high-alloyed α+β-titanium alloy of the transitional class, developed in 1965 of the previous century in the All-Russian Research Institute of Aviation Materials.
Original Materials and Research Conduct Method The initial data for the statistical analysis were the results of experimental research and production tests as well as reference data [20-23].
Boyer and other, Materials Properties Handbook.
The Material Information Society. 1994
Rosenberg, Ti-10V-2Fe-3Al: A forging alloy development, Proceedings of the Metal Society Conference on Forging and Properties of Aerospace Materials, The Metals Society.

Much efforts are being devoted on the development of armor materials which can provide greater ballistic protection.
Amongst all materials, ultra high strength steels (UHSS) are the most extensively used metallic armor today.
Materials and Experimental Details The steel alloy was processed by melting in 20 tons Electric Arc Furnace (EAF), and followed by Ladle Furnace (LF) treatment for secondary refining.
Balakrishna Bhat, “Effect of heat treatment on mechanical and ballistic properties of a high strength armour steel”, International Journal of Impact Engineering 37 (2010) 242
Balakrishna Bhat , “Science of armour materials”, Def.

Whether can Gangnam Style replace Broadcast Gymnastics or not: the dialectical game between modern physical culture and traditional physical culture Hongyu Li1, aand Junyi Liu2,b 1Jilin University of Finance and Economics,Jilin, Changchun 130017 2Zhongxin Primary School attached to Northeast Normal University,Jilin Changchun,130017 a23984906@qq.com Keywords: Gangnam style；Broadcast Gymnastics；Modern physical culture；Dialectical game Abstract: Using the methods of documents and materials, the authors analysize the possibility of “Gangnam style" would replace the broadcast gymnastics and discusse the related questions about school physical education.
Technic innovation Journal. 2009,11:132-134
Physical Science.1993.57(5):29-30 [4] Li Xin, Li Lin.

Although a few synchronous mobile e-learning systems enable students to experience the video and presentation materials of a lecture in real time and real-time interaction with the lecturer, they still have the problem of not allowing students to navigate and re-experience the lecture session including video and slides with annotation.
Simon, Ubiquitous Presenter: Increasing Student Access and Control in a Digital Lecturing Environment, Proceedings of the SIGCSE Technical Symposium on Computer Science Education, pp.116-120 (2005)
Ibrahim, m-Learning: An experiment in using SMS to support learning new English language words, British Journal of Educational Technology, Vol.40, Issue 1, pp.78-91 (2009)

Research on developing route of the new energy vehicle technology in China Lifang Liu1, a, Yan Jia2,band Zhuqing Wu2,c 1School of Civil Engineering, Hunan University of Science and Technology, 2Hunan Vocational College of Commerce 3Hunan Expressway Guangxin Investment Company Limited allf_hnust@yahoo.cn, b27629719@qq.com,c23578922@qq.com Keywords: New energy vehicle; Hydrogen engine vehicle; Transportation; fuel cell vehicle Abstract: In this paper, multidimensional evaluation model is made to select and analysis the new energy vehicles developing direction, namely to maturity, cost, energy resources, pollution and greenhouse gas emissions, energy efficiency and technical characteristics.
) [9]. the authors think that the biological fuels will take no-food materials as primary resource with low cost.
This article firstly ruled out to biofuel car because of the importance of lack of the food raw material and food security .To combine the three aspects of the multi-dimensional evaluating system ,the author thinks the new energy vehicles industry should focus on the oil, pure electric vehicles and biofuels (not the food raw material), natural gas cars in the short term .
Table 2 Technology roadmap on China's new energy vehicle Application Field Short-term planning Medium-term planning Long-term planning Ordinary highway traffic field (including car and commercial vehicle) l Focusing on the promotion of oil-electric hybrid vehicle l Energetically romoting the car based on ethanol fuel and bio-diesel with non-grain as the raw materials l Pilot promoting the pure electric vehicle(coal-fired and hydroelectric as the source) l Comprehensive promoting the hybrid and pure electric vehicle l Pilot promoting the rechargeable hybrid and hydrogen fuel cell vehicle l Comprehensive promoting the rechargeable hybrid and hydrogen fuel cell vehicles Public traffic field (including bus and taxi) l Promoting the pure electric bus and taxi(coal-fired and hydroelectric as the source) primarily, supplemented by bus and taxi with natural gas, dimethyl ether and hybrid as raw materials Comprehensive promoting the pure electric bus and taxi (hydro, wind and nuclear power
[2] The comparison in energy consumption and emissions of the transportation industry between China and typical countries[J].Energy of China2007, 29(10):19-22. [3]Tianshan Ma,Yijiang Fan.Stuady of transportation an stratergy of energy and environment in China[J].Journal of Traffic and transportation Engineering, 2008,8(3):117-119

The heat and mass balance of non-conventional solid material requires a physical properties model suitable to simulate it.
The reason may lie in the fact that our sample have small amount of fixed carbon unlike a biomass material or coal.
This indicates that DRS have a higher caloric value than the biomass material.
M , Avnimelech Y .Biodegradation Kinetics of Hydrocarbons in Soil during Land Treatment of Oily Sludge, Bioremediation Journal [J],2001, 5(3):193–209
Prediction of performance of a downdraft gasifier using equilibrium modeling for different biomass materials.

The marginal difference between Al99,5 and DC04 can be traced back to the difference in strength of both materials.
The compressibility of a material affects the volume of plastic required [12].
A qualitative symmetric distribution of thinning in both materials could easily be identified in the first instance.
Fu, International Journal of Machine Tools & Manufacture Vol.42 (2002), p. 375 [8] R.
Lenk, Polymer Rheology, Applied Science Publishers LTD, (1978) [10] P.