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Online since: February 2003
Authors: Konstantin V. Ivanov, M.B. Ivanov, Yu.R. Kolobov, Galina P. Grabovetskaya
The apparent creep activation energies Qc in the temperature range 398-473 K obtained for nanostructured nickel (115±15 kJ/mol) correlated with the available data on the activation energy of the GB diffusion of coarse grained nickel (Qb=115 kJ/mol [7]).
It is assumed that the observed reduction in the apparent creep activation energy of nanostructured nickel in comparison to the coarse grained nickel is due to an increased contribution of the grain boundary sliding into overall deformation.
The reduction of creep resistance of nanostructured Ni was found to take place in the case of diffusional contact with Cu in the temperature range of 398-448 K.
The effective coefficient of grain boundary diffusion calculated using experimental data is in a good agreement with the values for Al self- and Mg heterodiffusion along the Al grain boundaries.
Of coarse, our scatter is large, and it is large also for other data obtained in the direct diffusion investigations too.
Online since: July 2006
Authors: Andreas Afseth, Geoff M. Scamans, G. Williams, H.N. McMurray, A.J. Coleman
Data was recorded at 10 points per mm using with a mean probe height of 120µm.
Thus, surface deformation and heat treatment produce a reduction in Ecorr but, significantly, a very large reduction, of ca. 0.5 V, is produced by surface deformation alone without any requirement for a subsequent heat treatment.
Hydrogen evolution was not observed at -0.8V vs SCE, implying that the change in cathodic polarization behavior arises primarily from an inhibition of cathodic O2 reduction.
The data in fig 2 has not been adjusted for surface roughness and it is possible that a change in roughness on etching might influence the calculation of true current density.
The Ecorr data in figure 5 was produced by SKP scanning over a ground surface which had been part caustic etched through a mask of teflon adhesive tape (subsequently removed).
Online since: January 2015
Authors: Irina Yu. Efimova, Nataliya V. Belokopytova, Yuriy B. Lishmanov, Nataliya Yu. Efimova
At that, the estimate of treatment efficiency should take into account not only the fact of BP reduction, but also the effect of treatment on cerebral hemodynamics.
Statistical processing of the obtained data was carried out using software package STATISTICA.
Rodriguez et al. [13] in patients with DM, one could also observe the cerebrovascular regulation disorders, manifested by a reduction of cerebral blood flow adequate response to appropriate stimuli.
In the literature there are only few data on the effect of therapy by b-blockers on cerebral microcirculation at AH [17], and they are quite ambiguous.
Conclusion According to the data on 99mTc-HMPAO brain SPECT, it has been shown that in patients with AH in combination with type 2 DM the signs of brain hypoperfusion and reduced cerebrovascular reserve are identified even in the absence of focal neurological symptoms.
Online since: July 2010
Authors: Khellil Sefiane, Martin E.R. Shanahan, J. Radulovic
Table 1 Coefficients obtained by fitting function described by Eq. 1 to evolution of drop radius experimental data from Figure 2 CYTOP TEFLON ro [mm] a [mm] τ [s] ro [mm] a [mm] τ [s] 0.025 wt % 2.023 0.747 2.52 1.652 0.514 1.12 0.0625 wt % 2.001 0.649 1.14 1.643 0.434 0.54 0.125 wt % 2.005 0.582 0.42 1.678 0.421 0.46 Although the final drop radius was the same for all investigated solutions (Figure 2), coefficient a was found to decrease with increasing concentration.
This is in agreement with coefficients values obtained by fitting exponential function to our experimental data (Table 1).
Table 2 Coefficients obtained by fitting exponential function described by Eq. 2 to evolution of contact angle experimental data from Figure 3 CYTOP TEFLON θo [°] a [°] τ [s] θo [°] a [°] τ [s] 0.025 wt % 30.65 34.16 2.05 52.12 21.24 1.14 0.0625 wt % 30.27 30.17 1.09 52.51 20.74 0.63 0.125 wt % 30.39 27.15 0.35 52.10 18.02 0.52 The values of τ were also found to decrease with the surfactant concentration (Table 1).
More prominent reduction of τ values was noticed during wetting on Cytop, compared to that on Teflon.
Same trends were observed in reduction of the contact angle with time (Figure 3).
Online since: June 2014
Authors: Yong Liu, Xin Yuan Li, Xin Li, Li Rong Liu
Introduction As an important part of city construction, industry park has been dramatically developed in recent years which made it both the subject of implementation and the crucial part in low carbon emission reduction.
It was an important way to achieve emission reduction, and the improvement of infrastructure can be a perfect hardware insurance for the park[1].
Planning control path of LCIP based on GI Planning control path of LCIP (based on GI) was a new industry park system operating on GIS (geographic information system), which can coalesce low carbon energy-saving, industry cycle complementary and low carbon economy principles through ecological hub and corridor analysis after a comprehensive study on data about intensive land-use, physical geography, transportation, ecosystem protection and so on.
As the fig1 above, we should first find the key point, set target, then make a master plan and collect data, analyze all the elements and layouts to the detail of implementation and conduction.
prediction of production scale in industrial zone scale of the enterprise GI total scale GI Factor and arrangement GI action and management carbon-oxygen equilibrium SWOT analysis evaluation of heating effect in green land coordinate the scale collect the data analysis and evaluation detailed design ecological and elastic pattern economical profit of land unification of ecology, society and economic benefit Design and control play the key point identify the target Fig.1.
Online since: September 2019
Authors: Afonso Miguel Solak, Antonio José Tenza-Abril
To analyse qualitatively, the data were grouped into categories: 10%≥S>20%; 20%≥SI>30%; 30%≥SI>40% and 40%≥SI>50%.
This analysis becomes more evident when the data are represented by concrete type (Figure 3a) and it is verified that the correlations of LTWAC1 and LTWAC2, which has presented SI lower than 30%, are not good: 0,0742 and 0,0392, respectively.
In the same way, this analysis becomes more evident when the data are represented by concrete type (Figure 3b) and it is verified that the correlations of LTWAC1 and LTWAC2, which has presented SIs lower than 25%, are very poor: 0,0003 and 0,0167, respectively.
The volumetric fraction of aggregates – related to the theoretical densities in this paper - also affected the reduction of compressive strength due segregation.
Concretes manufactured in one layer, and with density of 1700 kg/m3 presented higher reductions of compressive strength due segregation than concretes with theoretical densities of 1900 kg/m3 (one layer).
Online since: February 2011
Authors: Jin Song Chen
According to the data obtained, the at% of Al2O3 in the deposit increases sharply with increasing the concentration of Al2O3 in the electrolyte and attains the optimum values at 14.4 at% at 30 g/l Al2O3 suspension in the bath.
The data obtained in this investigation can be explained in terms of adsorption of Al2O3 on the cathode surface.
As a result, the reduction of copper ions is controlled by concentration overpotential, the amount of codeposition of Al2O3 particles gradually decreases.
This results in the reduction of the diffusion layer thickness and it is accompanied by the increasing of the metallic ion concentration in the diffusion layer.
Online since: May 2013
Authors: Di Liu, Dong Jin Zhang, Xin Ying Zhao, Guang Hui Xue, Miao Wu
Fig.2 Cutting unit reduction gear mechanism Fig.3 Traction unit reduction gear mechanism 2.2 Conditions of coal face and equipment The general arrangement of coal face is shown in Fig.4.
The data of the vibration signal is recorded by using a recording instrument.
After retrieving the vibration data from the working face successfully, we analyzed the signals.
Online since: April 2011
Authors: Li Ming Chen, Hui Zhao
PCA is used to process the sample data (here R software is used).
Evaluation indicators of the real estate project become 4 after reduction by PCA.
Then after the training results completed, all the calibration data are input to produce the last comprehensive-evaluation score, which is shown in table 3.
Intelligent parameter reduction using rough sets theory and sensitivity analysis.
Online since: June 2010
Authors: Simona Noveanu, Ion Lungu, Dan Mândru, Vencel Iosif Csibi
The advantages of compliant mechanisms are considered in two categories: cost reduction (part-count reduction, reduced assembly time and simplified manufacturing processes) and increased performance (increased: precision and reliability; reduced: wear, weight and maintenance) [3].
Experimental Bench For measuring data of piezoelectric actuator and compliant minigripper [6] we developed the command scheme in Simulink and the interface using ControlDesk application (Fig. 4).
The modules for the test bench The structure of the test bench for measuring the experimental data referring to the actuator and minigripper is presented in Fig. 5.
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