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Online since: May 2012
Authors: Daniel B. Habersat, Ronald Green, Aivars J. Lelis
Data are shown for both the upward and downward sweeps.
The current has been corrected for capacitive displacement current and bulk conduction through the oxide, and normalized for comparison between data from different α, AG, and tox.
This data allows us to compare the mobile ion concentration as detected by TVS with the high-temperature threshold instability behavior from Fig. 1.
The data here shows a fair amount of variation, both sample-to-sample and comparing different sweep directions (though some asymmetry is expected).
However, the TVS data collected so far was not able to distinguish well between samples with similar ΔVT vs.
Online since: March 2023
Authors: Evgeny Alexandrovich Kirichenko, Dmitry Sergeevich Shtarev, Anna Vladimirovna Shtareva, Anna Jur`evna Petrova, Valeria Olegovna Krutikova, Ivan Alexandrovich Astapov
The data presented indicate that the type and concentration of the dopant have different effects on such parameters of a given semiconductor photocatalyst, such as the optical bandgap, absorption in the intrinsic area, and photocatalytic activity.
Data were collected over a 2θ angle range from 10 to 80 degrees with 0.016 ° increments and 1 second accumulation time.
The study of pure strontium bismuthate showed that it has a band gap Eg = 3.21 eV, which is in good agreement with the previously obtained data [20,21,26].
The introduction of lanthanum as a dopant manifests itself in the following ways: its low concentrations (up to 0.002) do not affect Eg, while the introduction of La in large amounts is accompanied by a decrease in Eg to 3.05 eV, which also agrees with the data [20].
Yan, Solution-Processed Nb-Substituted BaBiO3 Double Perovskite Thin Films for Photoelectrochemical Water Reduction, Chem. of Materials, 30(3) (2018) 1017–1031
Online since: September 2016
Authors: A.V. Shaparev, I. Savin
(6) According to the experiment data [8], and statistical calculations obtained acp= 0.0308 mm; k = 2,024.
Calculated according to the data obtained approximate amount of deformation of the primary setting of the layers in the cold rolling of bimetal steel brass L90-L90 18YUA-brass.
Thus, a good agreement of the experimental and theoretical data.
To check depending σczσB=fL1,L2 use experimental data from [10].
(21) Overall, a satisfactory agreement between the calculated and experimental data.
Online since: October 2011
Authors: Guang Tian, Hao Tian, Guang Sheng Liu, Jin Hui Zhao, Li Ping Luo
It is based on indistinguishability relation, when processing information, it can reduce the data and get the minimum expression of knowledge and it doesn’t lose the key information.
will be an a large numeric value when the energy is large, this will bring on some inconvenient when doing data analysis.
We acquired 30 group data, and 20 of them used for training data, 10 group used for experiment data.
Using the extraction characteristic parameter, set the roll bearing training sample data, shown in Table 1.
Rough sets only can process discrete attribute value, but the original compound-fault attribute value is continuous, so the data must be discretized.
Online since: December 2023
Authors: Farah Diana Mohd Daud, Nur Ayuni Jamal, Norhuda Hidayah Nordin, Nur Hudawiyah Abu Hassan, Nor Akmal Fadil
The slope from the first pseudo kinetics model was determined to compute the decolorization rate constant (K) This present work showed that the model was significantly well fitted with the experimental data.
Table 2 shows the calculated value of K where the two models' correlation coefficients were compared to determine the optimum represented the experimental data.
In order to fit the best experimental data, the correlation coefficients of both models were compared.
This phenomenon was due to the reduction of reaction rate as a function of time.
Moreover, the reduction behavior of hydrogen ([H]) plays a role as a reduction agent to reduce various organic species.
Online since: March 2008
Authors: Hui Ji Shi, Zhao Xi Wang, Xiao Liang Zhang
The results of the stress triaxiality increasing with the reduction of the thickness explain well the experimental results.
On the upper shelf and the DBTT region, the resistance curve procedure utilizes an elastic uploading procedure or equivalent procedure to obtain a J or CTOD based resistance curve from a single specimen, with at least eight data points in the curve before the specimen achieves the maximum load according to the ASTME1820-05, ASTME1290-02, ASTME813, ASTME1152, and ASTME1737.
With the reduction of the temperature in the transition temperature, the distance of ductile crack propagation drops down quickly.
As shown in Fig.5, with the reduction of the temperature, there is a slow increment and then a sharp drop of the fracture toughness.
The tearing modulus dJ/da increases with the thickness of the specimen and the reduction of the temperature.
Online since: July 2011
Authors: Shabnam Hosseini, Mohammad Bagher Limooei
Notch sensitivity data was compared with those of steels.
Stress concentration factor not only depends upon the geometry of the notch but also the mode of loading.This factor is difined by maximum local stress(s{TTP}-3981 max) to nominal stress(s{TTP}-3981 nom) ratio: (1-1) The commonly used equation for obtaining Kt : (1-2) a and b as were shown are in figuare (1-1) Notch radius( r{TTP}-3982 ) equals to[8]: (1-3) So the above equation can be written as the following way: (1-4) Fig. (1-1) Schematic of stress distribution around a crack perpendicular to applied stress [7] The presence of the notchs generally reduces fatigue strength but this reduction amount is lower than the reduction by stress concentration factor.Fatigue resistance reduction can be defined by fatigue notch factor[2]: Unnotched fatigue limit Kf = (1-5) Notched fatigue limit When Kf =1,
there is no degradation in the component due to the notch and when Kf = Kt the notch produces the full theoretical reduction in the fatigue limit.
It means that notch sensitivity reduction is related to notch size.
Notch size effect in fatigue limit is expressed as the most important reason for increasing of fatigue limit with notch size reduction.
Online since: April 2018
Authors: Jiang Quan, Yi Liu, Shi Wei Ren, Chun Zhi Zhao
Research shows that the cement production will inevitably release a large amount of carbon dioxide in two ways: generating required super-high furnace temperature by fuel combustion and producing calcination chemical reaction in heating limestone.In the most efficient cement plant, 60% or more carbon dioxide discharge comes from such inevitable chemical reaction.Data indicates [1] that about 790kg to 940kg carbon dioxide may be discharged during the production of one ton of cement.
Assessment Guidelines for Green Building Materials specifies the technical requirements for control item, scoring item and bonus item, where control item specifies assessment methods and scoring principles from fives aspects, i.e. energy conservation, emission reduction, safety, convenience and recyclability.
Assessment indexes are set around energy conservation, emission reduction, safety, convenience and recyclability.
The cementitious raw material (cement)of concretehas high energy consumption and fairly serious pollution, other raw materials are secondary products or discarded products in production process of corresponding industry, by using which both energy conservation and emission reduction can be realized.
acquisition system to upload production consumption data in real time, regulate the production of enterprise and completely eradicate illegal operation conditions like incorrect formula; installing a system for uploading real-time strength data of test piece to acquire product quality data, upload to data platform of supervision organization in real time, and further allow the supervision department to carry out effective control.
Online since: April 2016
Authors: Miroslav Kratochvíl, Ivailo Terzijski, Lukáš Zvolánek, Jaroslav Kadlec
For experiments was used micro-concrete (with maximum aggregate size 1.6 mm) with respect to cost reduction.
Measured data were continually recorded due to monitoring system under laboratory conditions.
For this concrete, the same shrinkage reduction admixture and dosage as in CM2 was used.
Favorable effect of shrinkage reduction admixture is evident when is compared the shrinkage development between CM1 and CM2.
Table 1 Absolute and relative shrinkage values Shrinkage development of CM3 is reduced by the shrinkage reduction admixture.
Online since: October 2014
Authors: Hong Bo Liu, Zhi Cong He, Chi Hui Li, Guo Bo Wu, Zhi Yu Wu, Lin Jie Li, Jun Ting Huang, Zhi Yong Huang
Co/Cu/Fe-MOs were used for selective catalytic reduction of NO by hydrocarbon.
NOx traps, Selective Catalyst Reduction (SCR) using urea and Diesel Oxidation Catalysts (DOCs) have proved to be the most effective among these methods [2].
The selective catalytic reduction of NOx emissions in diesel engine exhaust gas has attracted considerable interest [3].
Upon the calcination of the obtained precursor at 773K in air according to the TGA data, the precursor was converted into Cu/Co/Fe–MOs.
These characteristics are favored for the reduction of NO.
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