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Online since: November 2010
Authors: Guang Sheng Guo, Fu Bo Gu, Lei Wang, Zhi Hua Wang
The peaks may be the reductions of Au cations species.
And the hollow sphere sample has a intensive peak at 520°C, attributing to the removal of ceria surface oxygen, the nanospherical cluster distinctly weaker, and no obvious reduction peaks appeared up to 520 °C for flowerlike sphere catalyst.
All samples exhibit a broad reduction peak at 800-850°C, which is associated with further reduction of the bulk material. 3.2.
The data in Fig. 7 indicate that the CO oxidation activity of CeO2-hollow sphere is higher than CeO2-flowerlike sphere and the nano-spherical cluster is the lowest.
It can be explained by the TPR results, hollow sphere sample has a intensive peak at 520°C, attributing to the removal of ceria surface oxygen which implies the hollow sphere ceria has more reduction activity.
Online since: March 2017
Authors: Faridah Yusof, Nadzril Sulaiman, Mohammad Omer Faruck, Silvia Chowdhury
The reduction process begins with the colour change and the solution turns pale yellow.
Compactness and availability of shell layer was proven both by direct microscopic data from TEM and HRTEM of Ag@Pt NPs together with optical properties obtained from UV-vis.
Zhu, "Core@ shell sub-ten-nanometer noble metal nanoparticles with a controllable thin Pt shell and their catalytic activity towards oxygen reduction," Nano Research, vol. 8, pp. 271-280, 2015
Stamenkovic, "Advanced platinum alloy electrocatalysts for the oxygen reduction reaction," Acs Catalysis, vol. 2, pp. 891-898, 2012
Harke, "Synthesis of silver nanoparticles by chemical reduction and their antimicrobial activity," in International Journal of Engineering Research and Technology, 2012.
Online since: June 2015
Authors: Irnie Azlin Zakaria, Zeno Michael, Wan Ahmad Najmi Wan Mohamed
Lack of electrical conductivity data for various nanofluids in open literature is another challenge in nanofluid application in fuel cell. 1.
Higher temperature than this may leads to membrane overheat or excessive drying which will then result in performance reduction of a fuel cell.
Lower temperature is also not favourable as it can lead to flooding issue due to lower water saturation pressure at lower temperature and also reduction in kinetic energy which is not favourable in term of reactant reactions [2, 6].
Nanofluid application and challenges has been thoroughly reviewed by [3, 12] which covers applications mainly as a heat transfer enhancement and friction reduction devices.
Online since: March 2023
Authors: Hari Wisodo, Ahmad Taufiq, Sunaryono Sunaryono, Nandang Mufti, Andy Choerullah, Aprilia Dewi Ardiyanti
Based on data analysis, the XRD profile of Mn0.25Fe2.75O4/NiCo2O4 is combaining from two phase of Mn0.25Fe2.75O4 and NiCo2O4.
The results of the refinement of each data are following with previous research on Mn0,25Fe2,75O4 and NiCo2O4 [7, 9, 25].
Data refinement of Mn0,25Fe2,75O4, NiCo2O4 Mn0,25Fe2,75O4/NiCo2O4 nanocomposites.
Baykal, "Fe3O4@NiCo-Ag magnetically recyclable nanocatalyst for azo dyes reduction," Applied Surface Science, vol. 363, pp. 66-73, 2016/02/15/ 2016
Pérez-Cadenas, "Carbon Xerogels Hydrothermally Doped with Bimetal Oxides for Oxygen Reduction Reaction," Materials, vol. 12, p. 2446, 2019
Online since: June 2013
Authors: Qiu Ju Zhang
Biomass method is used to speculate the carbon storage amount of regional forest system basing on the sum of various biomass numbers in the forest and local stochastic sampling survey data.
The former conducts carbon sink estimation based on forest resource survey data.
The latter ignores other factors of forest ecological system, easily resulting in errors in the data obtained.
Since it is lack of the detailed data related to urban garden green land carbon sink currently, this study employs the study result above to estimate the carbon sink capacity of the garden green land in Jiangmen.
All these data indicated that Jiangmen shows a huge carbon sink volume potential.
Online since: May 2012
Authors: Xu Nan Ning, Zhong Shu Wei
In this study, we combined pilot test data and relative information to introduce the application of T.D. bacteria in biogas desulfurization area, and analyzed some of the key parameters of the process.
Data Analysis During startup, since the activity of the bacteria is weak, in order to control the reaction parameters and keep the suitable living condition of the bacteria, less aeration startup method is applied.
Table 1.Data during system startup From table 1, it is clear that: a.
From the data in above, it can be seen: after one week, the start up of the system is finished.
Data indicated that in thiopaq system, absorbent conductivity should be maintained at 40 ~ 60mS/cm.
Online since: November 2018
Authors: Yao Dong Gu, Ying Yue Zhang, Julien S. Baker, Si Qin Shen
All statistical analysis performed on the data obtained were based on data from the right foot.
Three-dimensional kinematic analysis used a Vicon motion analysis system with 8-camera (Oxford Metrics Ltd., Oxford, UK) to capture the kinematic data at a frequency of 200 Hz.
A Novel Pedar System (Germany) was utilized to collect plantar pressure data.
Data from further repetitions were collected and averaged for subsequent analysis. 2.4 Procedure All subjects completed walking and jogging tasks at self-selected speed along a 10-meter-walkway.
LSD (least significance difference) using ANOVA (analysis of variance) was taken for multiple comparisons of the mean of key biomechanical data.
Online since: October 2006
Authors: Byung Nam Kim, Tohru Suzuki, Yoshio Sakka, Keijiro Hiraga, Koji Morita
Such data and Eq. 4 suggest that the outline of dynamic grain-growth can be estimated from the values of k and m.
Inspection of the earlier data thus indicates that, of the factors listed in Table 1, four or more should be simultaneously satisfied for attaining HSRS.
We also used TiO2 [26] since experimental data [35] for grain growth and superplastic properties indicate that diffusion in Y-TZP is enhanced by TiO2 addition.
The earlier data obtained by Chokshi et al. (◆ [7]), Kajihara et al. (◇ [20]) and Oka et al. (□ [21]) are also shown.
The tensile data plotted in Fig. 4 show a different trend in the HSRS properties between the monolithic materials and the composite.
Online since: September 2013
Authors: Xiao Yin Liu, Xiang Lin Kong, Xin Wan
Data location In cloud computing environment, the use of distributed storage and dynamic scheduling mechanism make the data randomly storage in the different regions.
When you use the cloud, you probably won't know exactly where your data is hosted.
Data segregation Data in the cloud is typically in a shared environment alongside data from other customers.
Investigative support Cloud services are especially difficult to investigate, because logging and data for multiple customers may be co-located and may also be spread across an ever-changing set of hosts and data centers.
But you must be sure your data will remain available even after such an event.
Online since: June 2015
Authors: Keiji Miyata, Takao Ueda, Masayuki Tsukagoshi
While the potential values of II EX and IV EX show wide variation and the measured data at 20 degrees Celsius reach the non-corrosion range.
Most of the polarization resistance data measured at 40 degrees Celsius are less than 50 kΩ・cm² and the difference among data becomes small.
When the measurement is made at 20 degrees Celsius, the polarization resistance data measured by the rectangular wave electric current polarization method don’t significantly vary with the change in Cl- content in concrete, but the data measured by the AC impedance method tend to decrease with the increase of premixed Cl- content in concrete.
Fig. 9 Correlation of data of polarization resistance measured by different methods Relationship between data of the polarization resistance measured by the rectangular wave electric current polarization method and those by the AC impedance method is shown in Fig. 9.
Especially, regarding the data over 100kΩ ・ cm2 by the AC impedance method, the correlation of the data by two methods doesn’t clear.
Showing 9391 to 9400 of 40348 items