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Online since: July 2013
Authors: Aiman Ospanova, Мohamed Othman, Meruyert Berdiyeva
By processes optimization with the regard for such features as basic data it is necessary to use adaptive algorithms of identification, allowing mathematical model of process continuously to be adapted for changing conditions of operation.
The polymer industry is facing many challenges to meet a rapidly changing and diversifying market environment and the pressure for cost reductions and new product developments.
Basic parameters of polymerization process producing values of pre-exponential set on a current period of time with an interval of sliding P = 90 hours have been estimated on the basis of experimental data from the operating enterprise for polystyrene output.
Online since: March 2013
Authors: Zong Jun Gao, Yang Min Ma, Xi Zhu, Yu Tian, Jia Jia Li
Depending on the analysis of the data, this paper points out the relationship between the fluorine and other elements in the water, especially the fluorine’s close relationship with Mg, Se, Sr.
Compiling the water sample data we can have the the mean value of the element contents in the groundwater from different stratums.
When the fluorine content increases, the content of the other three elements also increases, Vice versa a corresponding reduction.
Online since: January 2017
Authors: Phelype Haron Oleinik, Wiliam Correa Marques, Eduardo de Paula Kirinus
The data were measured with the buoy at 200 m depth.
The model output was interpolated to fit the buoy data.
In the equations, Ti are the data modeled by TOMAWAC, Bi, the data measured by the buoy and n, the number of data entries in a time series.
The model keeps up to the measured data for both higher and lower waves.
Black dots are the original data and green lines are the spatial average of these data.
Online since: January 2006
Authors: Evgeny E. Glickman
LME can cause dramatic reduction in time-to-failure and thus in engineering strength and ductility.
The data, limited as they are (three "glued" and two "screwed" samples, correspondingly), are shown in Table 2 in the form convenient for our analysis.
This prediction of the theory is in a good agreement with the experimental data shown in Table 2.
Thus obtained ∆∆∆∆γ ≈ 0.2 mJ/m2 is in a good correspondence to the above estimates derived in sec.II-3 from the analysis of the kinetic data [18].
Kozma, Handbook of Grain and Interphase Boundary Diffusion Data (Ziegler Press, Stuttgart 1989) [25] E.D.
Online since: May 2010
Authors: Jürgen Horbach, Axel Griesche, Bo Zhang, Andreas Meyer
The data are compared to literature data in Sb-Sn and Ag-Sn.
Results and Discussion In this chapter we present results in liquid Al-Ni obtained by MDS and capillary experiments with X-ray radiography regarding the relation between interdiffusion and thermodynamic forces and compare these findings with literature data in other binary systems.
On the other hand one would expect a reduction of the interdiffusion coefficient by thermodynamic forces in systems with demixing tendency [26,27].
These phenomenological correlations between the general crystallization behavior of systems with common ordering tendency or common demixing tendency and interdiffusion may help estimating diffusive mass transport if data of interdiffusion coefficients and thermodynamic factors are not available.
Diffusion data of Ag-Sn and Sb-Sn are measured by a capillary-reservoir technique [24]; Φ is taken from the same reference.
Online since: July 2013
Authors: Seppo Louhenkilpi, Shan Yu, Jyrki Miettinen
The activity coefficient in Eq. (1b) is typically calculated using the assessed activity data of the liquid phase based on the WLE formalism [14].
In this work, however, it is calculated from the liquid phase substitutional solution data of the IAD database [15], which provides thermodynamic data for iron based alloys with solutes Al, C, Cr, H, Mn, N, Nb, Ni, O, P, S, Si, Ti and V.
Both terms are calculated with the substitutional solution model and data.
For the current data provided by Ruukki in Finland, only hydrogen content in continuous casting (CC) mould is measured.
The calculated results show agreement with the measured data in CC mould to some extent if the hydrogen pick-up varies between 0.7 and 0.9 ppm.
Online since: December 2012
Authors: Chun Yan Dai, Xi Liang Zhang, En Chuang Wang, Zhen Liu, Ming Hui Li, Chun Mei Liu
By accumulating the structure adjustment energy saving quantities of different levels we can get the whole structural energy saving quantity of a specific industry; and if the national economic system can be subdivided into a product level, with sufficient supporting data, the whole structural energy saving quantity that we get by gradual accumulation of the structure adjustment energy saving quantities of each level should be consistent with the structural energy saving quantity that we get by total calculation and separate calculation.
Based on data availability and applicability of the conclusion, this research is mainly about the structural adjustment energy saving in the primary, secondary and tertiary industries (the first level) and the industries within (the second level); national economic system on the first level is divided into the primary, secondary and tertiary industries.
But the growth rate of GDP in 2006 and 2007 are respectively 11.6% and 13%, higher than that of the living energy consumption, thus, the living energy consumption becomes an impetus to the reduction of energy intensity. 4.
Research Findings The research shows that during the Eleventh Five-Year period, dramatic change to the economic structure is the primary cause for the reduction of energy efficiency in China.
Therefore, the guideline for energy saving work in the Twelfth Five-Year is: under the scientific development outlook, combine the reduction of energy consumption intensity with the control of energy consumption closely centering the transformation of economic development pattern, thus driving the science and scientific development in turn.
Online since: September 2023
Authors: Annisa Aprilia, Inovasari Islami, Lutfi Naufal Ramadhika
Introduction Photocatalysis is an attractive solution for water treatment because it uses renewable solar energy to activate oxidation and reduction processes (via semiconductor materials) that can remove toxic organic compounds and microorganisms in water [1].
The first is an oxidation reaction with the formation of holes induced by light, the second is a reduction reaction by negative electrons induced by light [1].
Based on the experiment data of powder yield resulting from ZnO-Al gel phase, the weight of ZnO-Al in the gel phase was estimated in order to get 1:1 and 4:1 ratio of ZnO-Al:TiO2 (ZnO-Al powder produced is 40% of ZnO-Al in gel phase).
From the experiment data above, ZnO particles that are prepared at low-temperature calcination have a smaller particle size leading to a large specific surface area.
Therefore, in the degradation absorption peak from the data above, the absorbance intensity is detected as not only reduced but also shifted.
Online since: May 2010
Authors: J. Ponmozhi, F.A.M.M. Gonçalves, A.G.M. Ferreira, I.M.A. Fonseca, S. Kanagaraj, N. Martins, Monica S.A. Oliveira
Hence, more experimental data are required for further analysis.
The pseudo fluid" and occurs when the increased shear rate results in a reduction in the sample v dilatant behavior, "shear thickening" is characterized by rate.
For all the CNT- water based nanofluids tested, at least three measurements , to evaluate the accuracy of the results, including 250 or 125 data points, depending on the range of shear rate.
Both, present non-Newtonian behaviors, since the visco The pseudo-plastic behavior is commonly known as "shear fluid" and occurs when the increased shear rate results in a reduction in the sample v dilatant behavior, "shear thickening" is characterized by a rise in the viscosity with increasing shear at all temperatures and for all samples studied exhibit the same en expected, unless for certain samples generally exceeding 2 vol%.
The for temperatures from at least three measurements ing 250 or 125 data points, the range of 20-100 s-1, the CNTplastic behavior, where for shear rates exceeding 100 s-1 a Newtonian behaviors, since the viscosity plastic behavior is commonly known as "shear-thinning fluid" and occurs when the increased shear rate results in a reduction in the sample viscosity.
Online since: August 2021
Authors: Peng Peng Wang, Zhen Zhong Zhang, Fang Xia Zhao, Bo Rui Yang
We measured the coefficient of friction (COF) and the wear scar diameter (WSD) of the base grease and composite greases according to Chinese Standard ASTMD 2783, taking the average value of three samples for specific data.
The research results are completely consistent with Liming Wu' test results [31], which proves the validity of the data.
Nanosci. 9, 305-315(2019). https://doi.org/10.1007/s13204-018-0911-9 [15] Zhao, F., Wang, P., Yang, J., Zhang, Z.: Study on tribological properties of nano-SiO2 lubricant additives and its anti-wear and friction reduction mechanism.
Res. 51, 12321-12328(2012). https://doi.org/10.1021/ie3011337 [22] Rabaso, P., Ville, F., Dassenoy, F., Diaby, M., Afanasiev, P., Cavoret, J., Vacher, B., Le Mogne, T.: Boundary lubrication: Influence of the size and structure of inorganic fullerene-like MoS2 nanoparticles on friction and wear reduction.
Lett. 11(1), 329(2016). https://doi.org/10.1186/s11671-016-1546-y [28] Ren, R., Zhou, X.: Parameter estimation with stepwise type-I interval censored data.
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