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Online since: June 2012
Authors: Chong Zhi Mao, Lei He, Qian Jian Guo
Introduction The HiTAC technology (High Temperature Air Combustion) is a reliable, industry proven combustion method allowing emissions reduction, combustion process improvement, thermal field flattening and heat transfer increase in high temperature energy intensive applications.
Many researchers have recently realized significant energy savings, NOx emissions reduction and heat transfer uniformity in industrial heating furnaces resulting from such novel combustion [1].
After one switching period the air is stopped entering the cell and the flue gas is blown again into the honeycomb cell from the other end, the cycle was executed repeatedly until the temperature just before the change over are the same as the previous data, the cycle becomes steady state.
Online since: October 2012
Authors: Jin Peng Liu, Huan Huan Qiao, Hao Chi Guo, Guan Qing Wang
This indicator data can be gained through research.
For the environment, we select the reduction of carbon dioxide, sulfur dioxide, nitrogen oxide emissions and effectiveness as representative indexes.
Suppose reduction of one ton of nitrogen oxide is 4,500 Yuan per ton, the formation environmental benefit is 0.033 million Yuan due to DSM.
Online since: July 2011
Authors: Chuan Zhen Huang, Jun Wang, Cui Lian Che, Hong Tao Zhu
On the contrary, the erosion kinetic energy will be decreased with a reduction in the particle size and the removal mechanism of the eroded surface is ductile erosion.
Experimental Procedure Table 1 Experimental data Abrasive Mesh [#{TTP}-253 ] Pressure [MPa] Jet Incidence Angle [] 120 600 1200 80 100 180 15 40 60 In this study, a FCM1313 AWJ machine with a model 5 dual intensifier high pump is employed.
(a) 120# (b) 600# (c) 2000# Fig.4 SEM micrographs of the polished surface (15, 13.33mm/s, 80MPa) The kinetic energy of individual abrasive will be decreased with a reduction in abrasive particle size in the mixing and accelerating course of abrasive and waterjet.
Online since: July 2011
Authors: Yu Qian Wang, Zhan Ying Liu, Jin Chen
=0.3 =0.2 =0.5 =0.4 Fig.1 Influence of deformation temperature on flow stress Relationship between deformation degree and deformation resistance was established according to experimental data and shown in Fig.2.
With reduction of deformation temperature, deformation resistance shows downtrend on two-phase region.
This is different from ordinary carbon steel whose deformation resistance increases with reduction of deformation temperature
Online since: January 2015
Authors: Maciej Pytel, Paweł Rokicki, Marcin Drajewicz, Marek Goral
Literature data analysis shows that a number of methods have been developed through the application, in which the aim is to increase mechanical strength and chemical and thermal resistance [1].
Refined glass layer thickness [nm] Ellipsometer WG Average std dev EL – 4 59 61 61 ~60 1.154 SEMTECH 400 61 60 61 ~60 0.577 Average 60 Heat treatment associated with heat-setting of the aluminium hydroxide (WG) compounds nanoparticles layer has determined reduction of stresses in the inner layers visible on the cross section to compare with similar values in the optical glass.
The appearance of the compressive stresses of 150 nm/cm and strong surface tension reduction visible in the inner layers of the cross-section prove that the glasses refined with nanoparticles are characterized by a significant increase in mechanical strength.
Online since: May 2011
Authors: Xiao Yuan Jiang, Hui Juan Li, Xiao Ming Zheng
The obtained CuO/TiO2/g-Al2O3 catalysts denoted as CuTA 1.2 Catalytic activity of NO reduction Catalytic activity was measured at the steady state in a fixed-bed quartz reactor (WFS-3010, made in China).
XRD data were obtained using a horizontal Rigaku B/Max IIIB powder diffracter-meter with Cu Ka radiation and a power of 40kV×30mA.
The NO-TPD data were obtained by a mass spectrometer (LC SERIES DYCOR of AMETEK, made in Germany). 0.15g catalyst was pretreated by He at 500for 1.0 h, then cooled down to 25and switched to a 50 cm3min-1 flow of 10% NO/He(v/v) mixture for 45 min.
N2O is an important intermediate in the NO reduction and its appearing temperature will directly influence the NO+CO reaction.
Online since: September 2011
Authors: Xiao Hua Bai, Yong Wang, Shu Jing Li, Li Ping Dai
In this paper, the factors including glass’s raw material, melting temperate, time of glass melting and the oxidization or reduction state, which affect the coloring effect by Cu2+, have been studied.
The carbon powder and Sodium nitrate(NaNO3) were used to control the oxidation- reduction quality[4,5].
It can be observed from the data that under the condition of Oxidizability (COD value was 160.23), the negative values of Chroma index, a and b, increased with the increasing of concentration of CuO.
According the technical data in the results of tests, the light transmittance , brightness index, colour registration index and colour saturation of Glass Plate 6 were better than that Glass Plate 7.
Online since: September 2013
Authors: Yin Mei Wang
An essential requirement for the reduction of nitrate is the presence of a carbon source that can be oxidized as an electron donor.
The de-nitrification efficiency of denitrification system was very low at first 8 d acclimatization the start-up time (data not shown), and the column was allowed to stand for 3 days before the flow was initiated.
All data generated in the study was obtained using three replicate trials.
According to Fig. 2 can found that the reduction of nitrate-N reached zero within 3 d in system A, because filamentous bamboo was utilized as carbon source and continuous electron donor available.
Online since: November 2013
Authors: Mohamad Fatahi Amirdehi, Darush Afzali
The oxidation peak at about 0.4-0.6 VSCE represents the partially oxidized emeraldine state of PANI and the oxidation peak at about 1-1.2 VSCE and the reduction peak at about 0.2-0.3 VSCE represent the pernigraniline and leucoemeraline states, respectively.
When the potential scans were repeated, the height of the oxidation and reduction peaks increased regularly, which implied that the polymer was being well deposited onto the working electrode and that the thickness gradually increased[6].
Nyquist plots for bare, PANI and PANI-Silica coating steel in 1M H2SO4 solution According to data given in Table 2, protection efficiency of polyaniline coated steel in 1M sulfuric acid is 70%.
Impedance data obtained by simulation of nyquist plots Sampel Rs () CPE1(Ω-1Sn) CPE2(Ω-1Sn) Rcoat () Rct () % Bare 1.36 1347×10-7 4921×10-7 11.85 327 - PANI Coating 1.22 2123×10-8 183×10-5 267 1091 70 Nano Composite(1) 1.37 1847×10-8 1081×10-5 291 1684 79 Nano Composite(2) 1.43 1781×10-8 958×10-5 309 2600 87 Nano Composite(3) 1.32 1347×10-8 1347×10-4 321 3126 89 Conclusion The cyclic voltammograms and X-ray diffraction pattern confirmed the successful deposition of PANI and PANI-Silica coating on the 316L SS surface by cyclic voltammetry.
Online since: October 2014
Authors: Bian Peng Wu, Yan Xia Li, Ting Feng Tan, Li Gang Bai, Zhi Cheng Suo, Hua Yan Guo
Fig. 1 UV-vis Absorption Spectra of 1a, 2a, 3a with-naphthylmethylene (A) and1b, 2b, 3b (B) in DMF The conjugated system of 3a and 3b, as the corresponding reduction product of 2a and 2b, has not changed much, but the maximum absorption wavelength is obviously changed.
Their absorption and fluorescence emission data in DMF are summarized in Table 1.
Table 1 The Absorption and Fluorescence Emission Data in DMF of the Compounds 1a, 1b, 2a, 2b, 3a, 3b Compound lmax,1 [nm] (e [L×mol-1×cm-1]) lmax,2 [nm] (e [L×mol-1×cm-1]) lmax,3[nm] (e [L×mol-1×cm-1]) lem [nm] Fluoroscence indensity 1a 271(9.67´103) 283(9.29´103) - - - 1b 264(4.34´103) 384(1.08´104) - - 2a - 284(1.74´104) - 339 389.9 2b 274(1.48´104) 476(1.68´104) - - 3a 284(1.49´104) 298 (1.40´104) 323(1.28´104) 366 2178 3b - - 361(3.22´104) 443 239.8 Fig. 2 Fluoresence Spectra of 1,3,4-thiadiazole 2a, 3a and 3b Experimental General Methods 1H NMR spectra were recorded in DMSO and CDCl3 on a Brucker spectroscopic DPX-300 spectrometers.
Compound 3a was obtained at 80°C reflux temperature for 10h by zinc reduction of compound 2a.
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