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Online since: July 2014
Authors: Da Wei Tang, Miao Zeng, Chao Hong Guo, Zhi Ming Kang, Wei Guan, Fei Lu, Gang Wang
In this paper, the influence of aggregate size, inlet flow rate and the presence of upper air duct on the temperature change and flow resistance of aggregate is analyzed in to acquire necessary data for establishing a highly accurate simulation model to lay the foundation for developing a specialized software, and to improve the efficiency of pre-cooling in engineering applications.
Experimental procedures: (1) charge and record the aggregate weight and volume, and then calculate the aggregate porosity; (2) Check the sealing of the bin, adjust the valve of blower to control air flow; (3) Start the blower, record the measuring point temperature, import/output pressure, speed real-time; (4) Run for at least one hour, then stop the blower, and save the measurement data; (5) discharge aggregate, replace the type of aggregate in the order of large, middle, and small, and add or cancel the upper-duct, and repeat the previous four steps.
anemograph PC pressure transducer thermocouples data acquisition system Outlet pipe bunker Inlet pipe blower Fig.1 Air-cooling system Fig2.
Comparison with and without the upper-duct conditions data is showed in the situation of without up-duct, in which the pressure is large and increasing trend is evident, while in the situation of with upper-duct, the pressure is obviously lower than without the upper-duct.
Reduction of Interior Temperature of Mass Concrete Using Suspension of Phase Change Materials as Cooling Fluid, Construction and Building Materials, 2012(26): 527-531 [6] MA Chao, LIU Yanfeng, GUAN Wei.
Experimental procedures: (1) charge and record the aggregate weight and volume, and then calculate the aggregate porosity; (2) Check the sealing of the bin, adjust the valve of blower to control air flow; (3) Start the blower, record the measuring point temperature, import/output pressure, speed real-time; (4) Run for at least one hour, then stop the blower, and save the measurement data; (5) discharge aggregate, replace the type of aggregate in the order of large, middle, and small, and add or cancel the upper-duct, and repeat the previous four steps.
anemograph PC pressure transducer thermocouples data acquisition system Outlet pipe bunker Inlet pipe blower Fig.1 Air-cooling system Fig2.
Comparison with and without the upper-duct conditions data is showed in the situation of without up-duct, in which the pressure is large and increasing trend is evident, while in the situation of with upper-duct, the pressure is obviously lower than without the upper-duct.
Reduction of Interior Temperature of Mass Concrete Using Suspension of Phase Change Materials as Cooling Fluid, Construction and Building Materials, 2012(26): 527-531 [6] MA Chao, LIU Yanfeng, GUAN Wei.
Online since: July 2022
Authors: Hui Long, Oscar Wiessler
Despite large reductions in computational time this work failed to decouple this reduction from a decrease in simulation accuracy.
For AA5251-H22, the experimental data was recorded by Ai [29] which determined a thinning limit at 71.2 degrees.
Although the Voce law provides a good fit to the experimental data generated by the tensile test, this does not fully account for the complex deformation modes experienced in SPIF, specifically cyclic bending under tension with through thickness shear [32].
Validation with experimental data is performed to definitively quantify the level of geometric accuracy of the FE model.
Baranoğlu et al., Simulation for Incremental Sheet Forming Process: a Comparison of Implicit and Explicit Finite Element Analysis with Experimental Data, 2013.
For AA5251-H22, the experimental data was recorded by Ai [29] which determined a thinning limit at 71.2 degrees.
Although the Voce law provides a good fit to the experimental data generated by the tensile test, this does not fully account for the complex deformation modes experienced in SPIF, specifically cyclic bending under tension with through thickness shear [32].
Validation with experimental data is performed to definitively quantify the level of geometric accuracy of the FE model.
Baranoğlu et al., Simulation for Incremental Sheet Forming Process: a Comparison of Implicit and Explicit Finite Element Analysis with Experimental Data, 2013.
Online since: January 2022
Authors: R.H. Adekar, A. K. Kureshi
After the advent of cellular standards for mobile wireless voice telephony and data transfer, IEEE 802.11 and IEEE 802.16 standards evolved for wireless broadband data transfer.
Fig. 3 shows IEEE 802.11 data exchange where the interval of actual data transmission is less than half of the total length of data exchange. [14-20] If the number of nodes competing for the same slot is large then efficiency goes on decreasing and increases the probability of backing off to the same slot where the information packet collisions occur.
Data transmission with CSMA/CA mechanism is not efficient.
RTS/CTS/DATA/ACK.
The IEEE802.11 STA decides which data to be transmitted when in within CAP.
Fig. 3 shows IEEE 802.11 data exchange where the interval of actual data transmission is less than half of the total length of data exchange. [14-20] If the number of nodes competing for the same slot is large then efficiency goes on decreasing and increases the probability of backing off to the same slot where the information packet collisions occur.
Data transmission with CSMA/CA mechanism is not efficient.
RTS/CTS/DATA/ACK.
The IEEE802.11 STA decides which data to be transmitted when in within CAP.
Online since: April 2019
Authors: Janis Lungevics, K. Gross, Ernests Jansons
Obtained data showed that rougher surfaces tend to slide faster if contact area is larger but the effect reverses if contact area is reduced.
In order to obtain data from different experimental settings additional measurements will be performed in our future studies focusing on how applied load will influences obtained curves.
Obtained data were approved by national skeleton athletes, who reported that runners with less contact area have tendency for better sliding ability.
Unfortunately, contact area reduction interfere athlete`s ability to steer the skeleton meaning that optimal curvature and roughness needs to be found.
In order to obtain data from different experimental settings additional measurements will be performed in our future studies focusing on how applied load will influences obtained curves.
Obtained data were approved by national skeleton athletes, who reported that runners with less contact area have tendency for better sliding ability.
Unfortunately, contact area reduction interfere athlete`s ability to steer the skeleton meaning that optimal curvature and roughness needs to be found.
Online since: May 2014
Authors: Chayada Pansuk, Soydoa Vinitnantharat
The bed depth service time (BDST) model was applied to the data for predicting breakthrough curves and to determine the characteristic parameters.
Fig. 3 Breakthrough curves for AB 75 adsorption by SM-G at (a) different flow rates [bed depth: 20 cm, inlet concentration: 50 mg l-1] (b) different inlet concentrations [bed height: 20 cm, flow rate: 10 mg l-1] (c) different bed depths [flow rate: 10 mg l-1m, inlet concentration: 50 mg l-1] and (d) BDST model at breakthrough curve in fixed bed column 3.4 Behavior of Adsorption Column and the Bed Depth Service Time (BDST) Model The data indicated that breakthrough volume (Vb) and breakthrough time (Tb) increased with increasing bed depth (See fig.3(c)).
Consequently an important reduction 0.90 – 2.55 liters in the volume of solution treated at the breakthrough point is observed when the bed depth in the column decreases from 10 to 20 cm.
The correlation coefficient R2 values calculate for linearization of the experimental data were quite high, with values all above 0.9.
Fig. 3 Breakthrough curves for AB 75 adsorption by SM-G at (a) different flow rates [bed depth: 20 cm, inlet concentration: 50 mg l-1] (b) different inlet concentrations [bed height: 20 cm, flow rate: 10 mg l-1] (c) different bed depths [flow rate: 10 mg l-1m, inlet concentration: 50 mg l-1] and (d) BDST model at breakthrough curve in fixed bed column 3.4 Behavior of Adsorption Column and the Bed Depth Service Time (BDST) Model The data indicated that breakthrough volume (Vb) and breakthrough time (Tb) increased with increasing bed depth (See fig.3(c)).
Consequently an important reduction 0.90 – 2.55 liters in the volume of solution treated at the breakthrough point is observed when the bed depth in the column decreases from 10 to 20 cm.
The correlation coefficient R2 values calculate for linearization of the experimental data were quite high, with values all above 0.9.
Online since: December 2013
Authors: Yan Zhang, Di Fan, Xue Mei Zhang
The data obtained in this study suggested that calcium-enriched coal ash could be useful and cost-effective in the treatment of wastewaters containing HA-like organic macro-molecules.
At low pH, the high adsorption of HA can be attributed to the charge reduction of the functional groups which makes less hydrophilic part of the humic polymer bind hydrophobic components more effectively and the binding constant would increase as pH is reduced [9].
At low pH, the high adsorption of HA can be attributed to the charge reduction of the functional groups which makes less hydrophilic part of the humic polymer bind hydrophobic components more effectively and the binding constant would increase as pH is reduced [9].
Online since: January 2015
Authors: Li Sheng Liu, Qi Wen Liu, Jun Li
Comparison between the computational results and corresponding test data illustrates that the difference of these two models is obvious, which suggests that the consideration of upper and lower channels play an important role in analysis on polymer’s co-extrusion process.
With the wall slip coefficients decreasing, the velocity difference of pattern mold exit section along with Z direction and shear rate decreases gradually, which leads to the reduction on extrusion swell ratio gradually.
With the wall slip coefficients decreasing, the velocity difference of pattern mold exit section along with Z direction and shear rate decreases gradually, which leads to the reduction on extrusion swell ratio gradually.
Online since: November 2010
Authors: Juan Qin Xue, Yu Jie Wang, Qiang Bi, Yun Feng Xue, Ying Juan Guo
Some related mathematical models were used in the fitting of experimental data.
The processes currently used to remove these pollutants from industrial wastewater include chemical precipitation, oxidation–reduction, electrochemical deposition, filtering, ion exchange and adsorption [5,6].
The processes currently used to remove these pollutants from industrial wastewater include chemical precipitation, oxidation–reduction, electrochemical deposition, filtering, ion exchange and adsorption [5,6].
Online since: May 2019
Authors: Run Hua Huang, Song Bai, Ao Liu, Tong Tong Yang, Hao Liu
In order to get accurate threshold voltage drift data after high-temperature gate bias experiment, test of threshold voltage must be carried out immediately after the experiment.
Effects include reduced effective mobility due to reduction in the free carriers in the channel, decreased channel mobility due to coulombic scattering, obvious shift of the threshold voltage (VT), and stability of the threshold voltage.
Effects include reduced effective mobility due to reduction in the free carriers in the channel, decreased channel mobility due to coulombic scattering, obvious shift of the threshold voltage (VT), and stability of the threshold voltage.
Online since: January 2010
Authors: Kamran M. Nikbin, Robert C. Wimpory, Michael Hofmann, N.P. O'Dowd, S. Kamel
The finite-element predictions are compared
with experimental data including residual stress measurements using neutron diffraction.
Additionally the action of pre-loading causes significant plastic strains which may damage the material and contribute to a reduction in the fracture resistance of the material.
Additionally the action of pre-loading causes significant plastic strains which may damage the material and contribute to a reduction in the fracture resistance of the material.