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Online since: July 2011
Authors: Bo Rong Wu, Cun Zhong Zhang, Chun Wei Yang, Feng Wu, Ning Li
After doping, the Lattice constants shifted while the morphology changed only little, revealing that the properties may not be improved by the slight changed grain size but the crystal structure.
The potential interval between the oxidation and reduction peaks turned out a slight decrease, with the cycles number increasing.
Online since: November 2022
Authors: Kevin C. Igwilo, Nnaemeka Uwaezuoke, Victor Okoro, Stanley I. Onwukwe, Kingsley C. Iwuanyanwu, Victor C. Ayogu
Element Number Element Symbol Element Name Atomic Conc.
It is observed that the sample is fine-grained.
The fine-grained surface topography observed was supported by the high surface area result of the BET analysis and low particle size distribution result from the Zetasizer as presented in Figs. 7 and 9.
All quartz grains have about the same hardness and have the ability to resist crushing, a property all proppants must possess.
Online since: July 2012
Authors: Yu Xi Cao
Currently, large number of synchronization schemes have been proposed for the sensor network under the assumption that sensors work with the same network structure, network protocol and radio module.
Estrin, “Fine-grained network time synchronization using reference broadcasts,” in Proceedings of the 5th Symposium on Operating Systems Design and Implementation ( OSDI2002 ), 2002, pp. 147–163
Online since: December 2025
Authors: Omonigho B. Otanocha, Stanley Ufuoma Idi, Silas Oseme Okuma, Benjamin Ufuoma Oreko
Their study examined the effects of various system parameters, including water pressure, atomizing gas flow rate, number of atomizers, and droplet size, on the properties of the resulting powder.
The were made to cool for a certain time recorded as tc then carried for post-processing which includes separation and further analysis. 2.3.2 Separation Technique The collector dish contains a mixture of water, powdered aluminum of different grain sizes, and solidified aluminum parts that failed to atomize.
S/N Experiment Conditions Value 1 Ambient Temperature 25oC 2 Molten Aluminum Temperature 650oC 3 Number of Nozzles 4 4 Operating Pressure 200 bar 5 Angle of Nozzle 40o (see figure 3.4,3.6 & 3.7) 7 Duration of atomization operation 45 second 8 Mass of molten aluminum to be atomized 902.44g 9 Volume of tundish 0.00103𝑚3 3.1 Atomization Efficiency The atomization efficiency measures the proportion of the input aluminum that is successfully atomized or transformed into powder form.
The rapid quenching induced by high-pressure water (200 bar) achieves cooling rates exceeding 10⁵ K/s, which suppresses dendritic growth and yields fine-grained particles (as shown in SEM results, Figure 20a–b).
This non-uniform cooling can cause solidification inhomogeneity, which in turn affects powder microstructure, including grain refinement, porosity, and oxide layer formation, especially near particle surfaces.
Online since: August 2013
Authors: Basem Al-Madani, Anas Al-Roubaiey, Mohammad F. Al-Hammouri
The UDP/IP layer is the transport layer used by DDS; thereby DDS gain fine-grained control on the transmitted data where it can control the acknowledgments based on the user application requirements and the underlying network type.
Moreover, different scenarios with different number of subscribers are used.
The average latency is proportional to the number of subscribers and this make sense because when the number of subscribers increases the network traffic increases then the packet latency increases too.
We got the packet inter-arrival time for each subscriber running on the same machine by applying wire-shark filter command which depends on port number, for example (udp.dstport = = 7411) used to get every packet arrive to port number 7411, where every subscriber has different port number.
Fig. 5 Latency for different packet size Fig. 6 Jitter of different number of subscribers ble 8 shows the value of jitter and throughput in different cases with different number of subscribers; Fig. 6 and Fig. 7 show a graph representation for Jitter and throughput respectively as the number of subscriber increases.
Online since: July 2011
Authors: Xin Min Dong, Wang Shen Hao, Jie Han, Ling Jun Li
There are also plans to increase the number of offshore sites increasing the need for a remote means of WECS monitoring that overcomes some of the difficulties of accessibility problems.
A new breed of web application, dubbed AJAX (Asynchronous JavaScript And XML), has been emerging in response to the limited degree of interactivity in large-grain stateless web interactions [5-6].
Online since: July 2023
Authors: Ki Woo Nam, Ki Hang Shin, Byoung Chul Choi
The steel consists of a small number of large and small inclusions.
A small number of large inclusions significantly affects the properties of steel [2].
In (a), the tensile strength tends to increase as the number of oxides increases.
(a) Number of oxides, (b) Average oxides size.
Liu, Strength-hardness correlations of thermal-exposed oxide dispersion strengthened nickel-based superalloy with different grain size distributions, Materials Characterization, 178 (2021) Article No. 111178. https://doi.org/10.1016/j.matchar.2021.111178 [16] L.
Online since: August 2018
Authors: Shu Wang Duo, S.Z. Wang, Xiao Xuan Wang, Wen Li Li, Xue Yan Yuan, Zhong Chen, Xing Yu Jiang, Hao Shuang Wu, Wei Min
The capping of L-cys increased the grain size of ZnS:F QDs and their water solubility.
The reason could be that the number of the surface dangling bond of ZnS:F QDs reduced after capping with L-cys, which improved their luminescence.
Online since: April 2020
Authors: Nurul Fitriyah, Ten Her Hong, Ha Thai Duy, Juinn Wei Mi, Yen Fu Hsiao, Jenh Yih Juang
As the growth temperature increased, the film morphology evidently underwent drastic changes, from needlelike to more equiaxed grain morphology.
Perhaps it is worthwhile to mention that for the films grown at 520 °C with different deposition times, one is immediately able to see that, although the grain structure remains similar, the crystalline quality is much better for the one with longer deposition time, in support to the conjectures mentioned previously.
In the case of the film deposition on flexible muscovite substrate, the grain layer is clearly not a mixture constraint, there is no lattice mismatch between films, and substrate due to this kind of substrate is 2D material.
The resistance value has a high range number up to 102 Ohm, it confirmed that the substrate behavior was insulating material.
Online since: April 2021
Authors: Muhammad Musaddique Ali Rafique, Emeodi Christian Emeka
Solidification techniques aimed at grain refinement and tuning of the microstructure are proposed to be the best possible solution strategy.
Any glass forming system consists of elements which must: 1. be three in number (at minimum).
The metal following it is usually found in the form of solidified fine equiaxed grains.
Research Opportunities In the present research, an effort has been made to microstructurally control and tune the properties of Zr-based BMGs by controlling the number density (dc) of a ductile primary phase CuZr-B2 spheroidal intermetallic, its grain size and dispersion within the bulk alloy by conventional and additive manufacturing routes.
Solidification techniques aimed at improvement of microstructure and grain refinement are proposed to be the best possible answers.
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