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Online since: January 2021
Authors: Chun Xiang Qian, Qin Wen Chen
A Novel Approach to Characterize the Quantity and Distribution of Microorganisms in Microbial Self-Healing Cementitious Materials Qinwen Chen1,2,3,a*, Chunxiang Qian1,2,3,b 1College of Materials Science and Engineering, Southeast University, Nanjing 211189, China 2Research Institute of Green Construction Materials, Southeast University, Nanjing 211189, China 3Key Laboratory of Microbial Technology in Building Materials Industry, Southeast University, Nanjing 211189, China achenqinwen9693@163.com, bqiancx@seu.edu.cn Keywords: Microbial cementitious materials; Extraction of microorganisms; Distribution characteristics of microorganisms Abstract.
Material and Methods Raw materials and instruments.
Journal of food protection, 82(12): 2088-2093
Journal of Proteomics,150 (6):141-148
Journal of Microbiological Methods, 116:66-79
Online since: February 2011
Authors: Chang Bing Chen
In this paper, lateral pressure of bulk materials in silos is discussed.
With the increase of the height of bulk materials, this deviation may become greater and greater.
Journal of Engineering Mechanics, Vol. 127, No. 10, (2001), p. 1033-1043
Journal of Building Structures, Vol. 16, No. 5, (1995), p. 57-63.
Architectural Science, Vol. 14, No. 4, (1998), p. 14-18.
Online since: June 2010
Edited by: Akii Okonigbon Akaehomen Ibhadode
This periodical edition includes peer-reviewed papers based on results of scientific research and engineering solutions in different areas of modern engineering science.
Keywords:
Materials Science, Materials, Mechanics, Civil Engineering, Electrical Engineering, Cumputer Science, Environmental Engineering
Online since: May 2012
Authors: Jie Chen, De Yi Jiang, Song Ren, Song Tao Guo, Tao Deng
Especially, the creep behavior of similar materials can reflect the Jintan salt rock long-term creep with a relatively short time, which supplies reliable similitude model material for energy storage long-term creep test.
The test selected reference rock depth of 1 000 m of rock salt from Table 1 Physico-mechanical theoretical values of Jintan salt rocks and similar materials Lithology Bulk density (kN/m3) Elastic modulus (GPa) Poisson's ratio Compression strength (MPa) Jintan salt rock[16] 23.0 18 0.30 20 similar materials 23.0 0.36 0.30 0.4 Table 2 The creep-characteristic theoretical values of Jintan salt rocks and similar materials Lithology Load stress /MPa Time /h Initial creep rate /% Steady-state creep rate /% σ3 σ1 Jintan salt rock[8] 0 10 78 0.393 2.0 5 10 76 0.189 0.3 5 15 54 0.198 0.35 similar materials 0 0.2 11 0.393 14.0 0.1 0.2 11 0.189 2.1 0.1 0.3 8 0.198 2.45 Jintan salt mines, Jiangsu province, China.
After extensive groups of similar materials to simulate the salt rock, the similar materials are selected as follows: iron powder: coarse salt particles: fine salt powder: adhesives = 1:0.55:0.2:0.04 The adhesives composite of epoxy resin and ethylenediamine, and the volume ratio is 4:1.
Acknowledgements This research was supported by the Nation Basic Research Program of China(2009CB724606), Chinese Science Foundation (51074198), the Fundamental Research Funds for the Central Universities (CDJXS10240001; CDJXS11241182), Chongqing Natural Science Foundation (No.2010BB6044).
Mechanics of Cohesive-Frictional Materials.1996: 165-197
Online since: October 2013
Authors: Bo Huang
Since friction between the foot and the ground is an important force in most sports, modern athletic shoes are designed to maximize this force, and materials, such as rubber, are used.
Journal of Dance Medicine & Science 2011, Vol. 15 Issue 2, p61 [3] Griffiths, Ian.
Journal of Sports Sciences Feb 2011, Vol. 29 Issue 4, p373 [5] Hagen, Marco; Hennig, Ewald M.
Journal of Sports Sciences Feb 2009, Vol. 27 Issue 3, p267 [6] Hennig, Ewald M.
Journal of Sports Science & Medicine Dec2009, Vol. 8 Issue 4, p607 [8] Odebiyi, Daniel O.; Ajiboye, Eyitola O.; Jaja, Smith I.
Online since: October 2012
Authors: Ji Ke
Summarize the selection of green building materials, and to judge the development trend of green building materials in China.
first session International Conference materials science 1988 first proposed the concept green building materials.1992 convened by the United Nations Conference Environment and Development.1994 addition of Board "sustainable development", International Organization for Standardization ISO to discuss the development of standards for environmentally friendly products, actively promote development green building materials.
Construction of several green building materials as follows: (1) Cement and concrete: Cement and concrete is the largest amount of building materials, traditional cement use a lot of mineral resources and energy, with the progress of science and technology, has now appeared ecological cement.
References [1] Li'ping Tong: Journal of Zhengzhou university (2008),In Chinese [2] Li'ping Tong: Journal of Zhengzhou university (2008),In Chinese [3] Baizhan Li:The green building introduction.
Chemical industry press(2007),In chinese [4] Shizhong Wang: China building materials science and technology (2003),In Chinese [5] Xinhui Zhang: Energy conservation and environmental protection (2006),In Chinese
Online since: November 2012
Authors: Zhong Yong Xu, Zhi Fang Liu, Li Xiong Gu
is the fracture toughness of the materials.
International Journal of Fatigue 30, 834-849.(2008)
Advanced Materials Research, New and Advanced Materials, v 197-198(2011), p 1452-1459.
ASME Journal of Basic Engineering D85, 528-534.(1963)
Philadelphia: American Society for Testing and Materials, pp.491-504. (1988)
Online since: December 2011
Authors: Shui Yu, Xu Zhang
Boucher : Journal of Material Science, Vol.11-9, p1734-1750(1976) [7] F.
Radjy : Journal of Material Science, Vol.9-5, p744-752(1974) [8] H.W.
Westford Massachusetts: Building Science Press Inc, 293-365 (2005) [11] Li, Kuishan, Zhang, Xu, and Gao, Jun :Journal of BUILDING PHYSICS, Vol. 32- 4 (2005) [12] Menghao Qin, Rafik Belarbi, Abdelkarim Aït-Mokhtar and Lars-Olof Nilsson:Journal of Material Science, Vol.43-10, p 3655-3663(2008) [13] Q.
Y L: Journal of Material Science, Vol.40-4, p 1013-1015(2005) [14] Richards, R.F., Burch, D.M. and Thomasl, W.C.
N., DIAMONO S: Journal of Materials, Vol.5-3, p564 (1970) [17] WINSLOW N.
Online since: September 2012
Authors: Sheng Jie Zhao, Chuan Wang
Research and Realization of Air Leak Test System in Civil Engineering based on Virtual Instrument and Equipment Materials Chuan Wang 1, 2, Sheng-Jie Zhao 2 1 Wuhan University of Technology, Wuhan, 430063, Peoples R China 2 Henan Normal University, Xinxiang, 453007, Peoples R China email: wangchuan20112012@163.com, email: shengjiezhidao@163.com Keywords: Virtual Instrument; Civil Engineering; PCI-6024E; Acquisition Card; Equipment Materials Abstract: Through studying the existing theory and method of equipment materials air leak test system, the characteristics of equipment materials air leak are analyzed in this paper, the air leak test system in civil engineering based on virtual instrument and equipment materials is proposed, The system uses data acquisition card basing the PCI bus, equitpment materials and LABVIEW to design, using virtual instrument and the characteristics of geotechnical investigation and surveying.
Conclusion The paper proposed air leak test system of based on virtual instrument with equipment materials, gas leak test system basic design idea is based on virtual instrument with equipment materials, this paper using the computer strong data processing graphic display function, by test parameters of data collection and virtual instrument programming realize the gas leakage measurements and success of the gas leak test system design.
This air leak test system based on virtual instrument with equipment Materials was implemented in LABVIEW, and the virtual instrument testing system was built.
The Algorithm and Realization of Shapefile Geometry Transformation Based on Delaunay Triangulation[J];Journal of Jilin University(Earth Science Edition);2008 (3) :18-22 [5] Yang Xiao-dong,Tang Zhong-hua,Wang Shu-genThe Simulation of 3D Stratum Structure Based on Java/Java3D[J];Beijing Surveying and Mapping;2004 (4) :29-32 [6] PAN Mao,FANG Yu.Discussion on Several Foundational Issues in Three-Dimensional Geological Modeling[J].Geography and Geo-Information Science;2007 (3) :16-21 [7] ZhaoHuiDe.
Journal of dalian university of technology, 2004 (7) :35-39
Online since: July 2014
Authors: Jian Hui Yang, Lin Lv
Research on Biological Materials with Effect of Constant Magnetic Field Intervention on Bone Growth and Development in Rabbits Lin Lv1,a, Jianhui Yang 2,b 1.Department of Physical Education, Yanshan University, Qinhuangdao 066004, China 2.Harbour Vocational & Technical College of Building Materials, Qinhuangdao 066004, China amghllin@163.com Keywords: Biological materials, Constant magnetic field, Rabbit bone growth and development, Experimental model Abstract.
Biological materials with effect of constant magnetic field were attached to the hind legs of rabbits in the experimental group for a period of 4 months.
Research Method 2.1 Experiment Materials and Subjects Sixteen inbred strains of Japanese white rabbits of clean grade (male), all 7 years old and (2.5±0.3)kg of weight, were provided by the Department of Animal Science of Hebei Normal University of Science Technology.
Conclusion In this study, the designed biological materials with effect of constant magnetic field intervention display obvious effect on bone growth.
China Science.