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Online since: October 2014
Authors: Mihai Axinte, Petrică Vizureanu, Manuela Cristina Perju, Carmen Nejneru, Cătălin Andrei Țugui, Daniela Lucia Chicet
Furthermore, ASPN technology enables beneficial savings for materials and energy Fig. 1.
Fig. 1.
Table 1.
References [1] M.
A 479 (2008) 142–147
Online since: August 2019
Authors: Peter A. Ajibade, Funeka Matebese, Mojeed A. Agoro, Johannes Z. Mbese
SEM images show the surface morphology of CuS nanocrystals and the image resolution of this kind microscopy is limited to approximately 1 µm (10-6 m) as oppose to TEM with limits of 1 Å (10-10 m).
Fig. 1.
References [1] S.K.
Wu, In Handbook of Nanoparticles 2015, pp. 1-28.
Acta 85 (2012) 479-483
Online since: February 2007
Authors: Wan Jiang, Jing Feng Li, Qing Song Peng
The radio of the weight of the balls to the powders is 15:1.
References [1] G.H.
Vol. 54 (1971), pp. 1
Vol. 56 (1973), pp. 479
Vol. 46 (2001), pp. 1
Online since: February 2014
Authors: Kaneko Kensei, Furutani Katsushi
Table 1 shows the machining conditions.
Each observed plane corresponds to the coordinate system of the workpiece shown in Fig. 1.
In case of positive electrode polarity, the component ratio of Ti was approximately 1-3 at.%.
References [1] H.
Bartolome: Mullite-refractory metal (Mo, Nb) Composites, Journal of the European Ceramic Society, Vol. 28 (2008), pp. 479-491 [6] K.
Online since: December 2012
Authors: Yu Ying Zhou
In the simulations, two channel environments are investigated with the delay profiles shown in Table 1 and Table 2.
References [1] Y.
Commun., vol. 49, no. 3, pp. 467–479, Mar. 2001
Wireless Commun., vol. 3, no. 1, pp. 315–325, Jan. 2004
Signal Process., vol. 42, no. 1, pp. 102–112, Jan. 1994.
Online since: March 2014
Authors: Qing Song Ma, Zhao Hui Chen, Hai Jun Peng, Li Qun Duan
From the results of table 1, we have known that the obtained materials are highly porous.
References [1] X.
Inter. 27(1) (2001) 1-7
Soc. 84(1) (2001) 221-223
Inter. 28(5) (2002) 479-486
Online since: February 2012
Authors: Ai Qin Lin, Min Li Zheng
The use of regression analysis [1]~[2], neural networks [3]~[5] and other methods to establish the surface roughness prediction model.
The optimization results is shown in table 1.
Acknowledgements:outstanding youth fund in Heilong jiang Province 3028-900866 Reference [1] X.Wang,C.X.
Journal of Materials Processing Technology, 1996, 56(1-4):54-56
Chinese Journal of Mechanical Engineering, 2005, 16(6): 475-479 [6]F.XU,M.L.ZHENG, B.JIANG.
Online since: November 2012
Authors: Ti Feng Jiao, Jing Xin Zhou
The molecular structures and their abbreviations were shown in Fig. 1.
Fig. 1.
When the film was transferred from Cu(Ac)2 subphase, the corresponding peaks shifted to 1605, 1381 and 1278 cm-1, respectively.
References [1] A.
Liu: Thin Solid Films Vol. 479 (2005), p. 269
Online since: January 2013
Authors: Yong Chao Miao, Bing Hui Wang, Kai Chen
On one hand, FGA-4100 Automotive emission analyzer was used to detect emissions under different working conditions and record HC, CO, CO2 and NO concentration.On the other hand,Semi automatic vertical filter paper smoke agent was used to meter the smoke,as the following figure.1.Diesel engine performance parameters are shown in table 2.
Table 1 Test used bio-diesel and China's 0# diesel oil Performance Parameters Performance parameter Bio-diesel 0#diesel oil Flash point[℃] ≥ 63℃ 55 Density[g/cm3] 0.85-0.87 0.8379 Acid value[pH] ≤ 0.6 ≤ 7 Cetane number[CN] ≥ 46 45 Copper corrosion <1 1 Test engine Test bench 系统 Escape-pipe Fuel tank Fuel consumption meter Dynamo-meter Smoke meter Automobile exhaust analyzer Fig.1 Test device layout Table 2 YC6A220C Yuchai Engine's Major Parameters Item Value Type YC6A220C Air inlet Waste turbocharged intercooler Piston displacement[L] 6.871 Compression ratio 17.5:1 Minimum fuel consumption rate /[g·(kW·h)-1]
Tabel 3 Emissions performance comparison between bio-diesel and ordinary diesel oil Item The average test data 25% 25% 50% 50% 75% 75% 90% 90% 100% 100% Load Load Load Load Load Load Load Load Load Load Fuel oil varieties Diesel oil Bio- diesel Diesel oil Bio- diesel Diesel oil Bio- diesel Diesel oil Bio- diesel Diesel oil Bio-diesel Environment temperature[℃] 29.9 29.8 30 29.8 29.9 30 29.9 30 30 30 Humidity[%] 75 76 75 75 75 76 76 76 76 76 Oil temperature[℃] 29.2 29.2 29.3 29.3 29.3 29.3 29.3 29.3 29.4 29.4 Engine speed[ r/min] 1499 1499 1499 1499 1499 1499 1499 1499 1499 1499 Torsion[kg·m] 267.4 265.4 535.0 534.3 801.3 801.0 962.6 961.5 1067.6 1067.2 Power[kW] 40.6 40.0 80.8 80.2 120.4 120.4 144.5 144.1 161.2 160.1 Fuel consumption rate[ g/kW·h] 250.1 262.9 245.2 253.9 243.6 250.3 232.1 238.2 225.5 233.1 NOx[ppm] 157 137 208 171 295 241 531 451 479 421 pM[Rb] 1.2 1.16 1.2 1.17 1.22 1.18 1.32 1.27 1.28 1.19 PM temperature[℃] 355 339.5 384 370.5 390.6 380.1 402.3 394.7 415.6
Conclusion 1 When using bio-diesel,effective fuel consumption is higher than that of ordinary diesel oil. 2 The experiment on The YC6A220C type diesel engine shows that using bio-diesel has a good effect on saving energy and protecting the environment.
References [1] Shan bao-ming and Xia li.Research progress of bio diesel fuel.Shandong Chemical Industry.2008, 37(1): 19-23
Online since: October 2010
Authors: Hu Jun Jia, Chang Chun Chai, Yin Tang Yang
For the purpose of analyzing the mechanism of ohmic contact between SiC and different metals, the metals on every sample surface were removed by hot HNO3:HCl=1:3, X ray photoelectron spectra (XPS) and auger electron spectrum (AES) were measured, respectively.
Results and discussion Based on transmission line method (TLM), the resistances between every two electrodes for different samples were plotted in Fig.1, and the specific contact resistance (rC) were calculated according to the formula given below: (1) in which 2RC was the vertical intercept, 2LT was the horizontal intercept, and Z was the designed electrodes’ width, respectively.
Fig.1 Change of resistances between electrodes with different distances For every sample, the XPS measurement was carried out for two times before and after a Ar+ ion cleaning for 5 min on sample surface.
The XPS spectrum of the Ti/Ni/Au/n-4H-SiC sample was given in Fig.2, and the energy diffraction spectrum (EDS) listed in table 1.
References [1] Yang S J, Kim C K, Noh I H,et al: Dimond and Related Materials.
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