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Online since: October 2012
Authors: Shi Yu Sun, Qi Hang Zhang
Introduction Pesticide waste is considered any substance or material containing pesticide that cannot or will not be used and therefore must disposed of [1].
Glass, plastic and special paper is the most widely used materials that produce the pesticide container and bags.
If those polyethylene and polyethylene glycol terephthalate container are filled in buries, the material will not be degraded in a very long period, also affect the soil texture structure and the plants growth.
Thanos, “Assessing farmers’ practices on disposal of pesticide waste after use”, Science of the Total Environment.
Xu, “Study of usage of pesticide in Jingjingji Area”, Journal of Chinese Agriculture, Vol. 23(2007), No.10, pp. 44 (In Chinese) [3] Z.
Online since: November 2012
Authors: Shun Xiang Xu, De Zhi Chen
In order to reduce the touchdown vibration and flying stone splash when the chimney is collapsed, 8 buffer dams shall be built at the vertical collapsed center line within ±6° range of collapsed chimney center line, within 90~224m range away from chimney’s root center, the dam materials are the coal ash, buffer loess, yellow sand etc., upper width is 2m, lower width is 6m, length is 39m~75m, height is 3m, dam spacing is 17m~20m, 2m deep vibration reduction - dust fall auxiliary slot shall be excavated between every two buffer dams, this auxiliary slot increased the buffer dam height and width in disguised form in the practical work, the diagram for excavating of the vibration reduction - dust fall auxiliary slot is shown as Fig 2.
In order to reduce the ground broken stone splash resulted from chimney touchdown, the buffer dam material should be without brokens, use 2-layer high strength sunshade net to cover the buffer dam so as to form a whole, and the woven bags with yellow sand closed shall be stacked in order at the dam top and the chimney collapsing side, lay 3 layers.
Strictly inspect and accept the quality of blast holes; Ensure the good tamping quality, and strictly prohibit the broken stone mixed in stemming when clogging the blast hole; Determine the appropriate charge quantity based on field test results, to avoid over–charge;Cover the charge parts, use the multi-layer flexible composite materials for cross nearby protection, hanging-cover the charge part by the 20 layers of dense mesh safety net and 3 layers of geotextile to prevent the overflow of flyrocks.
The multi-layer flexible composite materials for cross nearby protection can effectively control the flyrocks.
Chen: Journal of Wuhan University of Science and Technology Vol. 31 (2008) No.4:p. 33~36
Online since: July 2014
Authors: Wu Yao, Yong Qi Wei
Quantitative Evaluation on Pozzolanic Reaction of Silica Fume and the Time Dependent Development of Portlandite in Composite Cementitious Systems WEI Yongqi1, a, YAO Wu 2,b 1 School of Civil Engineering, East China Institute of Technology, Nanchang 330013, China 2 School of Materials Science and Engineering, Tongji University, Shanghai 201804, China awei_yongqi@hotmail.com, byaowuk@tongji.edu.cn Keywords: Quantitative phase analysis (QPA); Silica fume (SF); Pozzolanic reaction (PR); QXRD/Rietveld method; TG-DSC Abstract.
Experimental Materials.
Acknowledgements This paper acknowledges the financial support of the Major State Basic Research Development Program of China (‘973’ Program, No. 2009CB623105) and the East China Institute of Technology Science Fund (DHBK2013201).
Y, Journal of the Chinese Ceramic Society(in Chinese). 35 (2007) 1641-1645
Yue, Pattern Manual of Inorganic Non-metallic Materials, Wuhan university of technology press, Wuhan, 2000
Online since: July 2015
Authors: Ismail bin Bakar, Nursyahidah binti Saedon, Nurul Farhana bt Mohd Seth, Adnan bin Zainorabidin
The definition of peat varies between soil science and engineering as well as different countries.
It is consists of undecomposed fibrous organic materials, easily identifiable and extremely acidic meanwhile sapric peat contains highly decomposed materials.
Materials and Methods Some past research had been reviewed to provide rationale data of the study and to give some information on the physical properties of the peat soil.
Soil Science, 165, (2002) pg. 479-486
Islam, , A model study to determine engineering properties of peat soil and effect on strength after stabilization, European Journal of Scientific Research, Vol. 22, No. 2 (2008) pg. 205-215.
Online since: October 2015
Authors: Ondrej Stopka, Ladislav Bartuska, Pavlina Kolarová
Workplace W6 - Recycling the Rejected Materials.
Due to the placement of raw materials stock in the production section it will be possible to carry out procedures such as input control of raw materials in the same place as the output control – in the dispatching section of the building.
Storage of raw materials was moved into the production hall.
This decision enabled placing raw materials input control and output control for dispatching within one area.
Kubasakova, Identification of Appropriate Methods for Allocation Tasks of Logistics Objects in a Certain Area, In: Our Sea, International Journal of Maritime Science & Technology, Vol. 61, No.1-2 (2014) 1-6
Online since: February 2014
Authors: Mohd Adzir Mahdi, Halimah Mohamed Kamari, L.S. Tan, C.S. Kan, A.S.M. Noor, Sharudin Omar Baki
Selecting the suitable host material for Er3+ is an important criteria in the development of potential optical devices since the emission characteristic of Er3+ is strongly depends on the glass composition [1].
From the results presented the proposed multicomposition glass in this work is a potential optical material for the future optical technology applications.
Buddhudu: Journal of Luminescence, Vol. 128 (2008), p. 690 [2] S.
Hanada: Journal of Luminescence, Vol. 87–89 (2000), p. 670 [3] S.
Prasad: Optical Materials, Vol. 26 (2004), p. 267 [33] G Lakshminarayana, Jianrong Qiu, M G Brik, G A Kumar, I V Kityk: J.
Online since: August 2014
Authors: Zbigniew Pilat, Łukasz Juszyński, Andrzej Michnik, Wojciech J. Klimasara
Sample Zander apparatuses: a) a device for exercising back muscles, b) a device for exercising arms and shoulder muscles [9] The modern rehabilitation devices differ from Zander apparatuses (Fig. 3) in their construction, materials and, most importantly, application of sensors and computer technologies.
Robot–aided neurorehabilitation: from evidence-based to science-based rehabilitation.
Journal of Rehabilitation Research & Development.
In: MM Science Journal.
In: Applied Mechanics and Materials Vol. 2013, no. 282(2013), p. 1-6 2013, ISSN 1660-9336.
Online since: August 2013
Authors: Rui Li, Yun Fang Meng, Xiao Hua Zhang
In this paper, illustrated by an actual case, we applied the method of orthogonal experiments to research the influence on the compressive strength of the Recycled Aggregate Concrete caused by different aggregate and various amount of additional materials used.
For improving our channel seepage control technique and construction technology, this project selected the Pingjipu dairy channel lining in Yinchuan, ningxia, in the 500 m small channels for sites, with recycled aggregates as the u-shaped slot one of raw materials for canal lining.
However, under the premise of sustainable development, utilization of construction waste is a effective of resources for environmental protection and materials science research.
Test with horse racing P.O 32.5 cement as cementitious materials.
Which can be concluded that recycled concrete used to make completely feasible channel lining material technology.
Online since: January 2014
Authors: Cheng Ran Fang, Dong Sheng Shen
Currently, most materials containing DBP are disposed of with other municipal solid waste (MSW) by landfill.
Microbes in refuse are the principal participants in organic materials degradation.
Materials and Methods Tested Refuse.
This may indicate that the organic materials biodegradation was enhanced by methanogens when the bioreactor landfill changed from the acidic phase to the methanogenic phase.
The landfill environment was still acidic on day 90 (Fig. 2), during which time the organic materials in the refuse were hydrolyzed, fermented continuously and produced various organic acids.
Online since: May 2012
Authors: Meng Ling Yuan, Zhen Hua Zhang, Yang Zhou, Xian Qi Luo
But whether do field experiments or do the indoor experiment, there will cost more financial and material resources.
While numerical simulation method is also one of the research methods, which can use software to study the defects in computer repeatedly and can save vast financial and material resources.
Numerical mesh model and material parameters.
Zhejiang Water Conservancy Science and Technology,2005(5) ,p. 36-39(In Chinese) [5] Jindezhi Yu, Tiecheng Chen, Yingdao Quan.
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(16) ,p. 2730-2733(In Chinese) [7] Yuming Chen, Dingping Xu.
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