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Online since: December 2011
Authors: Oleg A. Rozenberg, Raul Turmanidze, Vyacheslav V. Voznyy, Sergei V. Sokhan
Test conditions: Normal load 10 N Frequency of movement 1 cycle /sec Lubricant Ringer’s solution Number of cycles 1´106 cycles Test temperature 37 °С Interval of data logging 5´104 cycles Table 2 Content of used Ringer’s solution No.
- normal wear – after achievement of the wear value of surfaces at which the optimal meanings of back-up surface are reached a stable friction process of bodies with gradual reduction of the friction force have place
[3] Lieberman J R, Two Alternative Bearings for Total Hip Arthroplasty: More Data Are Needed.
Online since: September 2011
Authors: Xia Wang, Ming Qing Xing
The value of the curve slope is negative and small, so traditional temperature reduction or increase method is not suitable for growing NNSH crystal.
The determination of unit cell and the diffraction data collection were performed on an Enraf-Nonius CAD4 diffractometer with graphite monochromatized Mo Ka radiation (λ=0.71037Å) by using the ω-2θ scan mode in range 2.84º<θ<39.97.
NNSH crystal belongs to monoclinic space group P21/c, a=5.5374(9) Å, b=8.2022(13) Å, c=11.0520(18) Å, β=100.5010(10)º, v=493.56(14)Å3, z=2, Dc=2.482g·cm-3, which accords with the data reported by D.Stoilova[4], et but exacter.
Online since: October 2012
Authors: Cui Hua Li
In the secondary treatment system of the municipal sewage plants, the energy consumption of aeration takes up 50% of the total energy consumption, so the reduction of the energy consumption of the aeration system is the key for energy-saving of the whole plant.
According to the test data, when the system runs at the best working condition, the average removal rate of COD stands at 77.81%, with the highest removal rate of 84.00% and the lowest of 72.33%.
We can divide COD in the sewage into two parts according to biodegradability: biodegradable COD (CODB) and COD (CODNB) that can not be degraded. 27 groups of data of B/C value of the inflow and the effluent can be seen in Figure 1, the average value is 0.49 and 0.29 respectively, with the minimum of 0.40 and the maximum of 0.60 for inflow; and 0.14 and 0.43 for effluent.
Online since: March 2010
Authors: Ke Xiang Wei, Hong You, Ping Xia
A dynamic signal analyzer, produced by Data Physics Corporation with model number SignalCalc430, was used for the fast Fourier transformation of the acquired analog signals from the accelerometer.
The vibration data of the test beam is acquired by the accelerometer and sent to the dynamic signal analyzer.
But the relative reduction is variable for different excitation frequency.
Online since: January 2011
Authors: Xue Zeng Zhao, Da Yong Li
It can complete many works, such as data acquisition and processing, communication protocol and control of the node, etc.
In the RF circuit(as Fig.3 below), two inductances are in series and connect to a balun LDB2120402C-001 which can support the better bandwidth and the less performance reduction.
In order to assure data be transmitted correctly, the frames are sent in CSMA-CA mode, and the answer signal is adopted. 4 Conclusions Conventional vibrating wire sensor should be use together with frequency meter, and such system has the feature of high accuracy.
Online since: May 2011
Authors: Feng Miao, Guan Ping, Wang Bo
For this calculation model, it can be got by calculating with geological data and the design drawings: Taken the pile cap bottom as maximum scour line, l0=0m, elastic modulus of concrete , auxiliary pier pile base:; pylon pile foundation:, put the data into the formula 1, it can be obtained respectively: embedded depth of auxiliary pier pile H=5.44m; embedded depth of main tower pile H=11.76m, both in the range of 3 to 5 times of the diameter, while modeling take embedded depth of auxiliary pier pile H=6m; embedded depth of main tower pile H=12m.
Conclusion Through analysis self-anchored cable-stayed suspension bridge of two calculation modes between consolidation bottom of tower and considering pile-soil-structure interaction, we can obtained the following conclusions: (1) The integral rigidity of structure could be reduced and natural vibration period be extended by pile-soil-structure interaction which has the most influence to the first period; (2) Because of reduction of integral rigidity of structure, while longitudinal seismic inputting, longitudinal displacement of middle main span and main tower top increase obviously; the bending moment at tower bottom and pier bottom both decrease significantly, a 47% decreasing amplitude.
Online since: June 2012
Authors: Chun Yuan Ma, Feng Ming Zhang
Supercritical water oxidation of organics wastewater a with a novel transpiring-wall reactor Fengming Zhang1,a, Chunyuan Ma1 1National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, No. 17923, Jingshi Road, Jinan 250061, Shandong Province, China.
Data is monitored and recorded using a data acquisition program in a computer.
Online since: December 2012
Authors: Yun Rong Luo, Yi Guo, Qingyuan Wang
Fe C Si Mn P S Yield strength Tensile strength Elongation Reduction of area Balance 0.16 0.14 0.53 0.031 0.026 300[MPa] 415[MPa] 0.36 0.617 Experimental Details and Procedures.
The data are ineffective unless the fracture of the specimen occurs within the gage length of the dynamic extensometer.
Based on the results of experimental data, it can be concluded that, for Q235 steel, the stable mean stress depends both on the imposed mean strain and the strain amplitude.
Online since: November 2011
Authors: Yu Xin Yao
The mathematical model is established, combined with theoretical analysis and observational data.
Experimental data shows the fractal dimension of the crack increases with the increasing number of stress cycles initially, and decreases gradually as it reaches a certain value.
Due to bending and the reduction of the degree of its change, the covering dimension decreases.
Online since: November 2012
Authors: Yong Mei Guo, Wei Chen
The DSR data of asphalt binders, obtained by means of frequency sweeps at different temperatures under linear viscoelastic conditions, were horizontally shifted to form master curves at the selected reference temperature by using the TTSP.
The rheological changes for the base asphalt (#1) following RTFO aging as seen in Fig. 2 display an increase in complex modulus and a reduction in phase angle.
Conclusions Frequency sweep data from DSR testing over a wider range of frequencies were horizontally shifted to construct master curves of complex modulus and phase angle for SBS modified asphalts and base asphalt by means of the TTSP.
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