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Online since: June 2010
Authors: Chang Hou Lu, Wen Tao Sui
Techniques which enhance the signal in these situations are therefore highly desirable for early fault detection. [1] In vibration analysis for mechanical fault detection, noise reduction has been mostly done using filters.
The noise reduction methods based on filters can not effectively remove the noise which contains components in all frequency ranges.
The vibration acceleration data of bearings are obtained from the Case Western Reserve University [8].
[8] CWRU, Bearing Data Center, http://www.eecs.case.edu/
Online since: November 2007
Authors: Hikoshiro Hayashi, Tetsuya Kameyama, Takao Saito, Katsuya Kato
So far, we have demonstrated that MC3T3-E1 cells cultured at low cell density on sand-blasted substrates showed significant reduction of cell proliferation, subsequent poor differentiation and mineralization with increase of surface roughness [1].
This suppressed proliferation caused significant reduction of differentiation and mineralization, which might be resulted from lack of gap-junction communication required for maturation of osteoblast-like cells.
The cells on culture-day 1 showed little BrdU incorporation (data not shown), suggesting DNA synthesis was almost inhibited under this condition.
Western blotting analysis showed there were also no obvious differences in cell-to-substrate attachment (integrin α5β1) and cell-to-cell communication (Cx43) among the substrates on culture-days 7 (data not shown).
Online since: February 2013
Authors: Qian Qian Chai, Wei Yao, Chun Xiang Geng, Wen Rong Liu
Introduction A lot of research demonstrated selective catalytic reduction can effectively remove nitrogen oxide in flue gas, which is currently being developed as a new flue gas treatment technique.
The data were collectedin range 2θ=5~75゚, scan speed was 10゚/min.
Data [5] showed that the phosphoric acid as a good adhesive could improve the adhesiveness between TiO2 particles, and increase the compressive strength of them.
[5] Bin Wu: Study of Novel Mn-based Catalyst for Selective Catalytic Reduction of NOx at Low-temperature.
Online since: January 2013
Authors: Xiao Ping Jin, En Rong Mao, Xue Liang Wang, Zheng He Song
Increasing competition has forced manufactures to make considerable reductions in machine design and building cycles.
For the steering system, the secondary reduction gear and Ackerman steering system are worked out just after the input of initial design parameters.
When a new model is required, the stored historical data, similarity algorithms and interference engine help the designers to calculate the degree of similarity of the machine being designed to the one already built, give early suggestion of the trend and work out final results.
Thus in the future work, collecting more empirical knowledge from the experts and learning more rules from the historical data are going to be done.
Online since: June 2015
Authors: Hidekazu Tsuchida, Norihiro Hoshino, Yuichiro Tokuda, Emi Makino, Naohiro Sugiyama, Jun Kojima
Therefore, to spread the use of SiC devices, mass-production technologies and cost reduction of SiC wafers are necessary.
This enables long-term growth, which contributes to a reduction of production costs.
On the other hand, in the model with clustering, the growth rates of the experimental data correspond to clustering model data in the whole temperature range.
Online since: December 2010
Authors: Zhen Long Wang, Yu Kui Wang, Cheng Guo, Jian Li
The strain of the center of reduction actuator B and C after simplification is .
The equation of momental equilibrium of the arm unit can be got: (5) The elasticity produced by the left silicone body of the neutral layer is F1 (N);The resultant force produced by actuator B and C at the center of reduction is F2 (N);The elasticity produced by the right left silicone body of the neutral layer is F3 (N) the force equation of the arm unit can be got: F1=F+F2+F3 (6) Some conclusions can be got by calculating the mechanical model.
Through the experiment, experimental data at different voltages and different time has been got, as table 1 shows.
Before the experiment, a maximum bending angle (132.39°) has been calculated from the mechanical model, which is approximately equal to the experimental data (132.48°) (figure6-b).
Online since: May 2019
Authors: Leo A.I. Kestens, S. Janakiram, J. Prakash Gautam, A. Miroux, J. Moerman
Whereas the (001) [110] strengthens with increase in cold rolling reduction.
In ELC and IF steels, (001) [110] strengthens with increase in rolling reduction up to 10 times of random intensity after 85% cold reduction.
These alloys were received as cold rolled sheets of 1.2 mm thickness with 80% cold reduction.
Material C Mn Si Nb Cr HSLA ALLOY 1 0.06 1.32 0.008 0.034 0.006 DP 600 ALLOY 2 0.09 1.65 0.28 0.01 0.057 DP 800 ALLOY 3 0.13 2.00 0.25 < 0.01 0.055 The MTM-FHM software [8] is used to calculate the ODF from pole figure data obtained from X-ray texture goniometer.
Pearlite appears in the form of lamellae after 80% rolling reduction.
Online since: May 2024
Authors: Bouraida El Yamouni, Fadoua El Khannoussi, Abdellatif Khamlichi
In addition, it significantly decreases the wall displacement at the stem top, with reductions of up to 104% compared to the case involving cohesionless backfill.
Data from a series of centrifuge tests [21] performed on silty compacted clay backfills behind 6m cantilever walls showed that the backfill cohesion (15.2kPa) has a small but measurable influence on seismic action thrusting the wall back-face.
In light of the review of previous research on seismic earth pressure, which is developed for cohesive backfill soils, it should be concluded that there still is a need for conclusive experimental data that can be used to quantify evidence of the influence of cohesion on the seismic response of retaining walls.
In addition, a higher backfill cohesion value (c=30 kPa) yields an average reduction rate of 100% of the seismic residual lateral displacement as opposed to the reduction rate obtained for c=0 kPa.
At low cohesion values of the backfill (c=10 kPa), a rapid reduction of up to 95% is observed in the residual horizontal displacement of the wall top, while an increase in cohesion (c=30 kPa) results in a higher reduction rate of 104%.
Online since: November 2013
Authors: Lei Shi, Cheng Chun Zhang, Wen Qiang Wang, Jing Wang, Lu Quan Ren
Pulse pressure test data results are 1/3 octave spectrum.
Due to the No.2, No.3, No.4, No.6 and No.7 test points distributed on the side of the bar, we mainly analysis the data of these points, the No.8 point data only as a reference.
Other factors causing the data scatter include wind-tunnel blockage and end-plate effects.
Plasma actuators for cylinder flow control and noise reduction[J].
Aerodynamic noise reduction by pile fabrics.
Online since: March 2011
Authors: Gabriele Papadia, Antonio Del Prete, Teresa Primo
Engineering intelligence model and data analysis In order to achieve the aim of a complete overview of the calculated data, the authors have used an innovative approach based upon the OLAP (On-Line Analytical Processing) databases.
To support users during the process design development phase in the generated data management.
In fact different data aggregation rules have been implemented.
The structuring and aggregation of the generated data allow to the same data to be a reference base for the performances analysis of the analyzed test case. 3.
[7] The Data Warehouse Toolkit, second edition (Wiley), Hoepli, Kimball Ralph, Ross Margy 2003
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