Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: August 2014
Authors: Wei Jiang, Qing Jun Chen, Jun Shen, Fa Bi Zhang, Xian Liang Zhou, Xiao Zhen Hua
The bulk samples exhibit typically amorphous structure.
Materials Chemistry and Physics. 113 (2009) 878-883 [6] A.
Online since: February 2007
Authors: Di Sheng Yang, Wei Qi Yan, Jie Feng, Bing Gang Guan, Zhi Jun Pan
Among them, properties of the implant surface (such as topography and chemistry), controlling the type and magnitude of cellular and molecular events at the tissue/implant interface, is one of the most important factors [1] .
On the SCB-Ti substrate surface, there were many microporous structures composed of extending nanophase spherulites apatite after soaked in SBF for 2 days, making the substrate surface rougher than the control.
Online since: October 2006
Authors: Gabriel Ferro, Jean Camassel, Sandrine Juillaguet, J. Stoemenos, Efstathios K. Polychroniadis, Didier Chaussende, Yves Monteil, F. Soares, Maher Soueidan
The absence of such spiral growth in our samples would mean that the step structure at the substrate surface does not affect the initial nucleation of 3C-SiC.
Jacquier: New Journal of Chemistry 28(8) (2004), p.889 [6] J.
Online since: July 2011
Authors: Feng Shi, Zhan Song Yin, You Yang, Zhun Niu, Zhi Fei Liao, Guo Yi Tang, Guo Lin Song
Anionic polymerization of L2lactide in solution [J]. acromolecular Chemistry, 1987,188: 1861
The structure and properties of rubber shell fiber/PLA composites [J].Chemical Advanced Materials,2010, 4: 45.
Online since: August 2011
Authors: Zhen Hai Shao, Yu Su Song, Li Qing Zhou, De Huan Zhong, Kun Zhang
For sample 2#, the reddish-brown film inhibited further dissolution of the steel, enhanced the density of sealing phosphate coatings and made up for deficiencies resulting from loose structure.
[4] Qing G.Z., Wang D.W.: Chemistry Equipment and Anticorrosion Vol. 5 (2000), p. 17
Online since: March 2010
Authors: Ai Bing Yu, Xin Li Tian, Jun Fei Yang, Fang Guo, Chao Liu
The organic chemistry theory claims that the functions of organic substance in grinding liquid are double-sided.
Si-O-R + NH3↑ + NO2↑ + H2O Si Si N H O R Si (2) In the formula, R represents long carbon chain structure containing any functional group and NH3 or NO2 formed volatilize in gas form or are washed away through dissolving in grinding liquid.
Online since: June 2010
Authors: Ying Xin, Yu Sen Zhao, Fan Suo Zeng
In the last few years,with gradually deepening on the ecological environment protection consciousness and further recognition on the role of forest in water purification,the relationship between forest and water quality become important content of forest ecology research and hydrology research[5-7].Many countries have established a number of forest ecosystem research station in orther to research the structure, function and dynamics of forest ecosystem, and the relationship between forests and water quality, such as United States, Britain, Supported by the Key Project of Science and Technology in Heilongjiang Province(GA06B302-2) * Corresponding author Canada, Japan and other countries[8,9].
Table 1 Average of index of physical chemistry and organic contamination in pinus koraiensis plantation Item pH TURB (NTU) Do (mg•L -1) TDS (mg•L -1) COND (ms•m-1) ORP (mv) Rainfall x 6.48 3.28 9.62 3.12 3.43 250.67 S 0.45 1.53 1.06 2.48 0.95 32.78 cv 0.07 0.47 0.11 0.79 0.28 0.13 Throughfall x 5.98 10.39 9.09 19.83 3.61 228.64 S 0.29 6.05 0.68 12.81 1.99 70.44 cv 0.05 0.58 0.07 0.65 0.55 0.31 Stemflow x 5.78 12.50 8.73 46.00 6.83 219.17 S 0.13 4.80 0.98 11.40 1.67 56.19 cv 0.02 0.38 0.11 0.25 0.25 0.26 Runoff x 6.63 18.01 8.89 70.00 10.31 190.40 S 0.38 2.88 0.36 36.51 5.06 33.93 cv 0.06 0.16 0.04 0.52 0.49 0.18 x, s and cv represent mean, standard variance and variance coefficient, cv=s/x The value of pH, Do and ORP in the stemflow continue to decline.
Online since: October 2010
Authors: Wen Feng Bai, Yong Yang, Qian Kun Hu, Chuan Feng Li
Study on Vibration Alleviating Properties of Different Fiber Reinforced Polymer Concrete Wenfeng Bai1,a, Chuanfeng Li2,b,Yong Yang1,c, Qiankun Hu 1,d 1Department of Electronic Science & Technology,Huanghuai University, Zhumadian, Henan, China 2 Chemistry & Chemical Engineering Department,Huanghuai University, Zhumadian, Henan, China awfbai@yahoo.com.cn, blcfvivi@yahoo.com.cn, cyy-robinson@163.com, dqiankun_hu@163.com Key Words: Vibration alleviating Properties; Fiber Reinforced Polymer Concrete (FRPC); Damping ratio; Orthogonal Tests Abstract: Polymer concrete (PC), because of its good vibration alleviating properties, is a proper material for elementary machine parts in high-precision machine tools.
Damping properties are mainly determined by the components forming the composite and its internal structures.
Online since: May 2011
Authors: Gui Chang Liu, Li Da Wang, Dong Feng Xue
As to the chemical nature of SO42- in zinc hydroxysulfate, Odnevall and Leygraf emphasized that zinc hydroxysulfate and zinc hydroxychloride possess similar multilayer stacking structures.
The electrochemical reactions can be summarized as: NO3- + 2e + H2O ↔ NO2- + 2OH- (1) SO42- + 7Zn2+ + 12OH- + 4H2O ↔ 6Zn (OH)2 ZnSO4 · 4H2O (2) At present, it has been found that many factors can affect the nucleation and the orientation of nuclei at the initial stage of film growth, for example, the solution chemistry and substrate [21].
Online since: June 2010
Authors: N. Iqbal, Z. Haider, Mohammad Bilal Khan
The chemistry involved in the synthesis of the ablative composites is explained below Table 1 Components of the various ablative composites Samples Formulation 1) EPDM+Silica+Aromatic Oil+ZnO+ Stearic Acid+GPPD+Sulpher+MBT(Meracaptobenzothiazole)+DPG (1,3 - diphenyguanidine) 2) EPDM + CARBON FIBER+ Silica+St- Acid+Zn- Oxide+Wax+PBN(Phenyl-b-naphthylamine)+IBTS+DPG+Sulpher 3) EPDM +Silica+ ST Acid+Zn- Oxide+Wax+PBN+IBTS+DPG+Sulpher Sources of Investigation Two types of heat sources were used for the thermal investigation of the ablative composites, namely, the plasma torch and the oxy acetylene torch.
The behavior of ablating carbon phenolic.AIAA/ASME/SEA 13th structure, structural, dynamics and materials conference, San Antonio, Texas, April, 10-12, 1972