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Online since: November 2016
Authors: Danny Petschke, Torsten Staab
To acquire Small Angle Scattering data, the samples were measured in a SAXS NANOSTAR by Bruker AXS Inc..
The reduction of the 2d-data to a 1d-scattering curve was performed with the IGOR Pro macro NIKA [13].
However, an atomistic interpretation of these data is not possible at this stage.
This is also clearly seen from the DSC data taken from the weld nugget showing the formation of T1.
Ilavsky, NIKA: software for two-dimensional data reduction, J.
Online since: June 2015
Authors: A. Rahmat, Mohd Sobri Idris, S.P. Soo, Rozana A.M. Osman
Rietveld refinement using XRD data was used to determine the amount of interlayer mixing vary as a function of temperature.
Therefore, our intention is to achieve the aims such as reduction of nickel content through substitution of Mn about 10 %.
Lattice parameter obtained by least squares refinement of XRD data are shown in Fig. 2.
Therefore, the reasonable thermal parameters Uiso obtained from LiCoO2were used as a semi quantitative measure of interlayer mixing data of layered rock salt materialsLiNi0.7Mn0.1Co0.2O2.The refinement data on LiCoO2 are summarized in Table 1.
The calculated and difference plots of XRD data of LiNi0.7Mn0.1Co0.2O2 that prepared at 900°C are shown in Fig. 3.
Online since: June 2012
Authors: Li Sheng Zhong, Yun Hua Xu, Liang Liang Wang
Introduction In recent years, metal matrix composites (MMCs) are the focus of intense research and development world wide for aerospace, automotive, cylinder liners, bearings, gears and many other applications where reduction in weight of loss should be achieved following with the improvement in high wear resistance, heat resistance and thermal stability.
The X-ray diffraction (XRD) data were recorded on a PW 1730 X-ray diffractometer (Philips, The Netherlands) with monochromated CuKα radiation at 40 kV and 40 mA in the 2θ range of 10-90°.
It can be seen from the Fig.4, with the reduction of the areas in different content of TiC particles, the wear resistance decreases gradually.
Online since: September 2013
Authors: Jian Wei Zhou, Xiang Feng Chu, Ling Shan Chen, Lu Xu
SCR system using a 32.5% aqueous urea solution (AdBlue) [2] ,which is the most mature technology of selective catalytic reduction (Urea-SCR) as a reducing agent.
experimental system Diesel engine bench system by the diesel engine dynamometer, temperature control system, fuel consumption meter, control cabinets, data acquisition systems, online computer composition, temperature control system including coolant thermostat system, the oil temperature control system, fuel temperature control system.
For NH3 selective catalytic reduction of NO with non-vanadium-based catalyst research progress.
Online since: January 2014
Authors: Guo Ding Dai, Xiao Wei Han
By taking the N-shape semiconductor as the example, the actual schottky barrier height arising from the contact of metal and semiconductor is [4]: Where: Wm: work function of metal χs: affinity potential of semiconductor Eg: width of forbidden band : neutral energy level of interface state c : influence degree of interface state on potential barrier height : potential barrier height reduction caused by image force When applying the bias voltage V, Emax can be expressed in[4]: Therefore, Where: εi: dielectric coefficient of interface layer δ: thickness of interface layer Dis: density of interface layer Emax : maximum electric field at interface εs: dielectric coefficient of semiconductor Nd : impurity concentration Vbi: Built-in electric potential In accordance with the relationship formula of the potential barrier height, it can be seen that the displacement effect caused by irradiation makes apparatus’ efficient dosage concentration reduce, the ionizing
The factor to cause apparatus to get breakdown and voltage reduction is: the generation of interface state causes apparatus' efficient schoottky barrier height to reduce, causes the Fermi level pinning position affecting schoottky barrier height to change, and then causes the reverse breakdown voltage to reduce; however the increase of the reverse leakage current may possibly be caused by the deep energy level defect caused by irradiation in material[4,5].
Conclusion On the basis of apparatus irradiation effect analysis and experimental data, the study on the total measuring irradiation of SD ionizing irradiation shows the irradiation generates mainly the ionizing effect; the generation of interface state is the fundamental reason of apparatus’ performance deterioration.
Online since: July 2014
Authors: Yan Zhao
Many data show that only accurate grasp of nitrobenzene features and changes affecting their respective environmental factors, in order to make a scientific assessment of nitrobenzene in the environment, transport and transformation processes and destination.
Nitrobenzene migration and transformation mechanism in aquifer Nitrobenzene into the aqueous layer may be mainly through the following procedure: (1) The aqueous layer was adsorbed media particles ; (2) to the surface volatilization ; (3) biodegradable ; (4) non-biodegradable ( hydrolysis, photolysis, oxidation reduction reaction, etc. ) ; (5) to be absorbed into the food chain enrichment plant or degradation.
To determine the total rate constants of nitrobenzene natural attenuation The process of transport and transformation of pollutants in aquifer is also polluted matter natural attenuation, the process includes the physical process of solute convection dispersion and an aqueous medium on adsorption, pollutant biodegradation, oxidation and reduction process.
Online since: June 2015
Authors: Jan Ravinger, Lubos Snirc
To obtain quality results we must know exact input data including residual stresses.
Reduction of the bending stiffens of plate girders and the natural frequencies of slender web taking into account residual stresses are evaluated.
Fig. 3 shows influence of residual stresses on reduction of moment of inertia what represents bending stiffness of girder
Online since: July 2013
Authors: Fu Lai Qu, Gui Rong Liu, Pei Yuan Tian, Lu Yang Qi
However, there is a lack in the experimental and analyzed data.
Finally, the concrete cover spalled in the compressive region of the column base with substantial reduction in the load-carrying capacity, while the concrete in the flange slightly damaged or even not damage at all.
Fig. 5 shows the reduction in stiffness with respect to lateral displacement for CT-3.
Online since: March 2013
Authors: Zuo Shi Liu, Lan Lan Han, Xiu Qin Gao
Respectively circumference force, axial force and shear force are loaded on the final reduction gear C,fourth gear D or fifth gear E.Solving it can get equivalent stress cloud figures as shown in figure 5.
(1) In the formula(1), H-Durable operating time(H); L-Standard necessary durable distance(km); Rm-Tire effective radius(m); im-Gear ratio in each condition; id-Final reduction gear ratio; Ne- Engine speed(r/min); -Speed in each condition(r/min); -Number of teeth in each condition.
Since tests of material fatigue data are obtained from smooth specimens, that fatigue strength parameters of smooth specimens and parts are very different.
Online since: December 2012
Authors: Siti Shahidah Sharipudin, Ahmad Ruslan Mohd Ridzuan
Although there are a large number of papers which reported on foamed concrete , there is no data available on the use of WPSA and FRCA combined at different ratios with respect to compressive strength performance of lightweight foamed concrete.
Meanwhile, it can be observed that further increasing proportion of WPSA up to 30% ratio contributes the reduction in strength by the values of 43%, 19%, 22%, 20%, 12% and 15% at 3, 7, 28, 60, 90, and 180 days of curing time respectively as compared with those of the mixture containing 20% WPSA replacement.
The reduction in strength might be attributed to a higher content of WPSA that resulted in the retardation of strength due to the low value of pozzolanic reactivity of WPSA.
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