Search results

(a) (b) (c) (d) Figure 3- Load history captured by oscilloscope for full size Charpy test specimen 6 Material properties The material under investigation was X100 grade gas pipeline steel (36" O.D×19mm W.T).
The preliminary results from this research suggest that correction factors of at least 1.3 to 1.4 (140J/112J for sub-sized specimen, 279J/196J for full size specimen) may be required for extrapolating the semi-empirical relations calibrated on less tough pipeline material to calculate the Charpy toughness for crack arrest in X100 pipeline steel.
This is because of the high initiation energy for tougher pipeline steels which has not been accounted for in the predictive models tuned on lesstough materials (with less crack initiation energy).
Niinomi, Journal of Testing and Evaluation, Vol.21, No.3, (1993), pp. 145-153 [8] T.
Pineau, Elsevier Science, 2002

More and more nanometer materials are being developed, and presenting a great application foreground in biology, medicine, national defense and daily life[1-3].
Up to now, most researches of nanometer technique are only focus on developing nanophase materials and nanometer device with high sensitivity or high performance, powering them can still be challenging.
Materials Today.
Science.
Journal of Electroceramics.

Compression Performance of Repaired Composite Stiffened Panels: Bolted Repair and Scarfed Bonded Repair Zhao Chuang1,a, Guan Zhidong1, b, Guo Xia1 1School of Aeronautics Science and Engineering,Beihang University,Beijing, China azcmacaron@sina.cn; bd5062010@163.com Keywords: Composite stiffened panels; Bolted repair; Scarfed bonded repair; Buckling; Failure Abstract.
Introduction Recently, composite material has been widely used in aircraft structures due to its advantageous properties [1].
After removing damaged material, the stiffened panel was changed to a damaged one with a 12mm circle hole at the center of skin for penetrated one, and a same size circle thinner area at the center of skin for non-penetrated one.
The mechanical properties of materials used in making panels were shown in Table 3.
Hashin, Failure Criteria for Unidirectional Fiber Composites, Journal of Applied Mechanics. vol. 47(1980) 329–334

Effect of stone dust and MB value for manufactured sand on workability of self-compacting concrete and model analysis GUI Miaomiao1, 2, a, ZENG Chongsheng2, b, Gong Mingzi2, c, Peng Junzhi2,d 1 College of Materials Science and Engineering,Tongji University,Shanghai,200092,China 2Xiamen Academy of Building Research Group Co, .LTD, XiaMen361004, China; amututu@126.com,b82888044@qq.com, c573212643@qq.com, djzpeng76@126.com Key words: manufactured sand; MB; stone dust; self-compacting concrete; model Abstract.
Experimental details Materials In the study, Ordinary Portland cement (P.O 42.5), fly ash (FA, Class II) and Ground blast furnace slag (S95) were used as binder in the mix proportions.
References [1] Jian Zheng Wu, Shi Lian Fu and Sun Zhen Ping:Journal of Building Material Vol. 10 (2007), p. 154–160, in Chinese
[4] Ilker Bekir Topcu,Turhan Bilir and Tayfun Uygunglu:Construction and Building Materials, Vol. 23(2009), p. 1947–1953

Materials and Methods CSTR reactor 1.waste water box 2.feed pump 3.reactor 4.agitator 5.biogas meter 6.water lock Fig.1 Schematic diagram of the CSTR reactor for biohydrogen production from molasses wastewater A 10L continuous stirred-tank reactor (CSTR ZL98240801.3) with an effective volume of 5.4 L which could isolate gas-solid-liquid very well was used in this study (Fig.1).
Results illustrate that the anaerobic bacteria can degrade organic materials effectively in wastewater at shorter HRT.
Effect of OLR on the bio-hydrogen production and pH In the malasses as raw materials remarkably lead to the variation in characteristics of wastewater and thus no corresponding linear relationship between HRT and OLR existed.
International Journal of Hydrogen Energy 31 (2006) 1306-1313 [9] Water quality-Determination of the chemical oxygen demand-dichromate method GB/T11914-89.
Beijing: China Environmental Science Press; 1989. p. 280-3

Carbonation reactions clearly illustrate this phenomenon, as can be shown by the following equation using wollastonite (CaSiO3) as starting material: 1 CO2 (g)+1 CaSiO3 (s)=1 CaCO3(s)+1 SiO2 (am) (1) Recent attempts are made to emulate natural processes by producing calcium carbonate cement derived from the combination of seawater, calcium, and magnesium with carbon dioxide [2].
Materials and methods Materials.
International Journal of Sustainable Built Environment, 1(2) (2013) 194-216
Science 305(5686) (2004), 968–972
Construction and Building Materials 111 (2016) 63–71.

In1984, the excessive sludge to be treated in the European Union countries reached 5.56 millions of dry materials [3].
Methods of Protein Recovery.For protein recovery, dissolution of intracellular materials in excess sludge must be achieved first.
Bandosz, Sewage sludge-derived materials as efficient adsorbents for removal of hydrogen sulfide, Environ.
Journal of Hazardous Materials. 2009, 171 :1159–1167
Acid-based hydrolysis processes for ethanol from lignocellulosic materials: a review.

Materials and methods Site description and soil properties An experiment was conducted under greenhouse conditions at the Water-Saving Park of Hohai University Jiangning Campus located on latitude 31°57′N and longitude 118°50′E, Nanjing, Jiangsu Province from May to August2012.
Meiguo 903 tomato variety was used as the crop material which was transplanted on 23 May 2012 and harvested on 31 August 2012.
Italian Journal of Agronomy (2012), 7(18)
Irrigation Science, 1-10, 2010
International Journal of Agriculture and Biology 12:561-565. (2010) [21] M.

Material and Method A.
The equipment was set in experimental demonstration base for “2015” national major projects “water pollution control & treatment” in science & education city in Changzhou.
References [1] K.Liu, “Senior aquatic biology,”Beijing: Science presss, 1999, pp. 326-327
[2] M.Quan,Q.Shen,J.Yan, et al, “Research progress on Eutrophication biological purifying effect,” journal of applied ecology, vol.14 no.11,2003,pp. 2057-2061 [3] P.Ji,W.Lv,N.Li, et al, “ Improment effect of Taihu water quality by three kinds of artificial substrate,” china water, vol.21 no.6,2005,pp. 4-7 [4] Walter K D, ValHS, Kirk L.
et al “Pilot study on low concentration organic wastewater treatment by Bio-film process,” Study on environmental science, vol.20 no.2,2007,pp.46-50 [7] “Water and wastewater monitoring method,” Beijing:Chiese press of enviorenmental science, 2002, PP. 243-280 [8] Y.Tu, S.Jin, “Lake eutrophication survey norms,” Beijing: Chiese press of enviorenmental science, 1990, pp. 160-188 [9] W.Chen, N.Chen, H.Hu. et al “Discussion on possible error for phytoplankton chlorophyll-a concentration analysis using hot-ethanol extraction method,” Lake science,vol.18 no.5,2006,pp.550-552.

But, because there is massive radioactive material in the reactor, it would cause serious damage to environment and humans, once the nuclear leakage happens.
Acknowledgments This research was supported by Hi-Tech Research and Development Program of China (863 Program) (no.2009AA093401), national natural science foundation (Key Program) (no.90814011) and national natural science foundation (no.40606014).
[3] PEI Yu, DONG Zhong-min and YANG Jin-yu, “Research in the development strategy of renewable energy resources in china,” Journal of Liaoning Normal University (natural science edition) , vol. 27, pp. 221-224, June 2004
[9] Institute of Oceanology and Chinese Academy of Science, ‘Report of seismic investigation and evaluation of pre-feasibility study for Jiangshidi and Zhuanghelou site in Liaoning Province,” 2008
[12] Key Laboratory of Marine Geology, Institute of Oceanology, Chinese Academy of Science, “Bohai geology,” Beijing: Science Press,1985 [13] China Earthquake Administration, “The People’S Republic of China Trade Standard for Seismology: Method for Surveying and Prospecting of Activity Fault,” DB/T152005(In Chinese).