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Online since: May 2012
Authors: Xiao Ming Li, Chuang Rong Mo, Chao Lan Zhang, Ling Kui Zhao, Wen Cui, Ting Xie
The cyanide concentration was increased around 10mg/L, COD reduction was achieved in 3-4 days.
It is evident from the results that incremental shift in cyanide concentration reduction in the reactor performance for a short period.
Data on cyanide concentration in the feed and effluent and cyanide removal are presented in fig.3 the influent cyanide concentration is varied as 0, 5, 10 and 15mg/L, respectively, In phaseⅠ, the effluent cyanide concentration lower than 0.5mg/L with corresponding cyanide removal of 99%; In phaseⅡ, the effluent cyanide suddently increased to 2.34 mg/L with corresponding cyanide removal of 63.96%.
Increasing cyanide concentration from 5 to 10 and 15mg/L, respectively, resulted in slightly increased VFA concentration, the influent of VFA concentration was around 250mg/L; In phase Ⅱ, it appeared that the concentration of VFA increased from229.46mg/L to 698.85 mg/L as influent cyanide concentration of around 10mg/L; In phase Ⅲ, cyanide concentration of 5mg/L result immediately in VFA increased from 586.6 to 1500.28mg/L; the influent VFA was higher than 600mg/L in most of the cases with influent cyanide concentration of 5,10 and15mg/L, respectively, data suggest that increasing influent cyanide concentration affected the activity of methanogens as evidenced by the increase in VFA concentration.
Online since: September 2016
Authors: E.R. Zvereva, O.S. Zueva, R.V. Khabibullina
Results and discussion The data in Fig. 1 show that the viscsity decreases to a certain limit with an increase of motion velocity of fuel layers.
The anomaly in the behavior of boiler fuels viscosity is its reduction after heat treatment or relevant mechanical action.
Eliot, Boiler fuel additives for pollution reduction and energy saving, Noyes Data Corp., 1978
Online since: October 2008
Authors: Irene Calliari, Manuele Dabalà, Emilio Ramous, Giovanni Straffelini
Such reduction could be compensated by the increase of the manganese and nitrogen contents, to maintain the typical balanced microstructure of DSS, with about the same content of ferrite and austenite.
Indeed the reduction of the nickel and mainly of the molybdenum contents seems to avoid the precipitation of intermetallic phases, very detrimental for the toughness and corrosion resistance of conventional DSS.
Thus, in the temperature range above 800°C, there is a good agreement between our results, Thermocalc calculations, Lee evaluations and other experimental data on Fe-Cr-Mn system, all indicating that, for the composition of our steel, the formation of the σ-phase is not possible and the microstructure consist of α-ferrite and γaustenite only.
This is not confirmed by 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 200 400 600 800 1000 1200 1400 1600 THERMO-CALC (2007.05.16:13.48) : DATABASE:TCFE3 W(CR)=0.22, W(NI)=1E-2, W(MO)=5E-3, W(N)=2E-3, W(C)=3E-4, W(MN)=5E-2, P=1E5, N=1; 1 1:T-273.15,NP(BCC_A2#1) 2 2:T-273.15,NP(FCC_A1#1) 1 3 3:T-273.15,NP(LIQUID) 1 3 1 2 12 4 4:T-273.15,NP(HCP_A3#2) 1 2 4 5 5:T-273.15,NP(M23C6) 1 2 45 6 6:T-273.15,NP(SIGMA#2) 1 4 5 6 1 7 7:T-273.15,NP(FCC_A1#2) 45 6 18 8:T-273.15,NP(BCC_A2#2) 7 45 6 TEMPERATURE_CELSIUS Molar Fraction of Phase 2007-05-16 13:48:14.40 output by user Massimo from PELLIZZARIPC 2 1    L Cr2N  our results or by Lee evaluations [7] and other experimental data [8, 9].
Online since: October 2010
Authors: Adolfo Preciado Quiroz, Silvio T. Sperbeck, Harald Budelmann, Gianni Bartoli, Elham Bazrafshan
This last classification is a combination of the analytical methods with real data of the building obtained experimentally (mechanical and dynamic information).
This experimental data is a valuable tool for the calibration (or updating) of the model, obtaining more reliable results towards the real seismic performance of the structure.
Results showed that the ultimate load capacity and ductility could be improved satisfactory depending on the prestressing level and the device, allowing with this the vulnerability reduction of the towers (seismic risk mitigation).
Even when SMAs combined with AFRP showed less stiff behavior compared to prestressing steel, results interesting to conclude that this combined device allowed less change (increment + and reduction -) of the prestressing force in the order of ± 5%, compared to prestressing steel with a change of ± 20%.
Online since: January 2006
Authors: Shuzo Otsuka, Yoshihisa Nakata, Takeshi Saito, Hiroki Takahashi, Keishi Tobinai, Torao Kemi
Introduction Reduction of dioxin emission and life-sustaining of wastes landfill yards have recently made local governments equipped with melting-solidification plants to recycle domestic wastes [1].
Melting and solidification method is a direct melting, gasification-melting system with a vertical shaft furnace where raw materials are directly melted in a high temperature reduction environment at a temperature from 1700 to 1800 ℃.
However, a slight variation was observed by the sampling month, thus the aggregate quality may be influenced according to regional and seasonal conditions of the domestic wastes and thereby a year round data is needed.
For a wider application of the molten slag fine aggregate to concrete structures, more data should be accumulated.
Online since: July 2003
Authors: Jin Ji Gao, Zhinong Jiang
Condition monitoring and fault diagnosis on site 3.1 Vibration data acquisition and reduction In the malfunction condition, excessive vibration did not drop even when the rotor had passed through the threshold load.
To determine the exact cause of the fault, dynamic data of the rotor vibration on the #3 bearing had been acquired and processed by Bently Nevada instrumentation in the field for detecting trouble
The upward motion of axial center position from the bottom part of the bearing will cause a considerable reduction of stiffness.
Online since: May 2016
Authors: Pacharawan Ratanasongtham, Ruangsri Watanesk, Surasak Watanesk, Lalida Shank, Jaroon Jakmunee
The amount of oxygen consumed by this reaction can be determined by measuring the reduction current of oxygen.
Effect of various interferences on response of the fabricated biosensor (5 replications) Interference (1.0 mM) None (AA; 5mM ) Citric acid Glucose NaCl Ethanol % Relative error 0.0 0.0 2.1±0.5 0.0 0.0 The data demonstrate that the test substances have no significant interfering effect on the determination of AA, except glucose.
The data demonstrate that the fabricated biosensor exhibits somewhat good response time and wide linear range compared to other reports.
Lykkesfeldt, Determination of Ascorbic Acid and Dehydroascorbic Acid in Biological Samples by High-Performance Liquid Chromatography Using Subtraction Methods: Reliable Reduction with Tris[2-carboxyethyl]phosphine Hydrochloride, Anal.
Online since: February 2013
Authors: Janusz Grabara, Paula Bajdor
Data of Public Transport System in Czestochowa [8] Specification unit 2005 2006 2007 Number of passengers (total) mln 69,416 65,817 63,104 Lines length: Buses City Suburbs Trams km 603 593 398,1 194,9 10,2 603 593 398,1 194,9 10,2 552,8 544,3 405 139,3 8,5 Number of lines: Buses City Suburbs Trams Pcs. 36 26 10 1 36 26 10 1 33 26 7 1 No of buses No of trams pcs 154 48 164 48 148 48 No of km Buses Trams 13811 11437 2374 13848 11505 2343 Technical availability factor Buses Trams % 83 87,5 85,8 85,4 Fleet utilization rate Buses Trams % 78,7 64,6 80 62,5 The above table shows that urban transport in Czestochowa loses its passengers, year by year.
The adopted transport policy for the city of Czestochowa, leads to the following specific objectives: - Increasing the efficiency of the city with the increasing levels of motorization, - Improving the quality of services offered by the municipal transport company, - Improving parking conditions, - Reducing emissions generated by transport, - Noise reduction, - Improving road safety, - Improving the economic efficiency of transport.
The data for the year 2015 are only estimates, however, given the nature of the investments and sustainable transport policy objectives, it can be assumed that the use of public transport and cycling will increase, together with the reduction in the number of accidents and pollution emissions into the atmosphere.
Online since: December 2013
Authors: Shou Jun Huang, Yu Long Ren
Introduction The report published in the Proceedings of the National Academy of Sciences(CICERO, 2008) pointed out that the global carbon emissions had increased by 13% in the past 10 years, in which the carbon emissions from transportation increased by 25%, and the data will increased by 30%-50% in 2050.
Average transport distance of railway transport is 595km(NBS, 2006), and every kg of saved diesel is equivalent to an emission reduction of 3.06 kg CO2.
The present is 80-95%, and is 6.62%(CEC, 2012), After substituting related data into above formula, following results were obtained, power transmission efficiency was 74.70-88.71%, when electric vehicle charge 1kWh of electricity, power plant should produce 1.13-1.34kWh of power.
Besides introducing energy-saving emission reduction technology in electric power generation, the CO2 emissions of coal-fired power generation side caused by electric vehicle can also be reduced by improving battery charging technology and by reducing power consumption per kilometers.
Online since: January 2006
Authors: Ennio Bonetti, Marcello Cabibbo, E. Evangelista, C. Scalabroni
A reduction in grain size has the advantage of improving the strength and toughness of the material at room temperature and, if the small grain sizes is retained to elevated temperatures, there is also a potential for achieving good formability and superplastic ductility.
Micro-hardness tests were carried out by applying a load of 100g for 15s, and average data were calculated from a series of 20 independent measurements repeated for each condition.
These data indicate the Sc addition to markedly favour the dispersoids precipitation, which in fact are finely dispersed in the whole material's microstructure.
Therefore, nanometre Al3(Sc1-x,Zrx) dispersoids continuously pin dislocations and cell boundaries with strain resulting in a larger reduction in conductivity in a much more effective way than in Al3Zr containing alloy.
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