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Online since: July 2011
Authors: Steffen Neumeier, Howard James Stone, James P. Minshull, Mattew G. Tucker
Co increases the volume fraction of the L12 by reducing the solubility of L12 forming elements Al and Ti in the A1 matrix phase (g), acts as solid solution strengthener of g and increases creep resistance through reduction of stacking fault energy (SFE) [2].
Neutron diffraction data was acquired from all of the alloys in the as-solutioned condition and also after subsequent isothermal exposure at a range of different temperatures and durations.
The line shows the overall modelled fit of the experimental data (dots).
Reference data from [7, 13].
The measured lattice parameter and calculated lattice misfits for the binary alloys are in good agreement with literature data [7, 13].
Online since: May 2010
Authors: T.P. Ntsoane, M. Topic, R. Bucher
The above equation being linear in εij, can be solved by six independent (η, 2θ) data points.
A laser video alignment system was used for accurate sample positioning and the diffracted data were collected with a High Star 2-dimension detector.
The analysis for strain was performed using the free standing Pt 220 reflection data, see figure 2.
Figure 3: Conventional sin 2ψ curves of Pt-V coatings integrated from the raw 2D data, the insert shows the effect of annealing on the FWHM.
Upon annealing, a reduction of the peak width (FWHM) and the curvature in the sin 2ψ curve suggest that some recrystallisation process is taking place within the Ptlayer. 4 Conclusions Residual stresses in electron beam deposited Pt-V coatings were investigated using X-ray diffraction technique.
Online since: February 2013
Authors: Yun Feng Yao, Fu Cang Qin, Gang Tie Li, Li Zhi Wu, Wei Qi, Yue Feng Guo
Previous and current versions Biome-BGC have been evaluated against other models, eddy-covariance data from flux towers, and biometric studies.
Thornton et al.(2002)tested Biome-BGC against eddy-covariance data and biometric analyses at seven evergreen needleleaf forests in the United States to assess the model's ability to track NEP following disturbance.
The smallest time step in the simulation is the base-time step which is selected according to input data availability and/or module requirement (generally one hour).
This calculation is purely empirical and is only used here for transferring initialized DBH to D01 and D01 back into DBH in order to provide evaluation data that can be compared with repeated DBH measurements.
Since the order of magnitude of estimate for the amount of biomass required for reduction in C emissions was within the range of coal-biomass feed systems,it is reasonable to assume that existing technology is adequate for the option.
Online since: March 2013
Authors: Yun He Xu, Lin Lin Chai, Chun Bao Li, Zhi Guang Li
Many scholars at home and abroad [49-54], through the narrow prototype size, considering the main similar ratio of hydraulic parameters, the external measurement method to analysis the stability of slope under the condition of sudden drawdown of water level, and obtained a series of image data that changing of geological mechanics parameters along with time in the process of sudden drawdown of water level and the whole failure process.
In addition, the requirements of the centrifuge model test to the data acquisition system are also very high ,the international mainly adapt non-contact fiber slip rings, some of them are part of the laboratory based on LAN technology of wireless transmission mode.
At home, China water conservancy water and electricity academy of sciences in a full discussion on the basis of completed in 2003 to LXJ - 4-450 large geotechnical centrifuge data acquisition system transformation. the system after the transformation uses the technology of LAN wireless transmission, and get good test results.
Therefore, further development the model test that the changing of the soil body stress and pour water pressure on the process of slope failure, for all the data essential to carry out the analysis and validation of the numerical simulation.
References [1] Tingkai Nian, Shaoshi Wan, Jingcai Jiang: Finite element analysis of slope stability under drawdown conditions by strength reduction technique[J]. geomechanics,2010, 31(7): 2264-2269
Online since: December 2012
Authors: Young Moo Heo, Jong Deok Kim, Heung Kyu Kim
If the die roll height of the power transfer part like gear is large, then a structural defect can occur due to the reduction of the power transfer surface.
The die roll heights on the corner shape of the fine blanked parts were measured with an optical measurement inspection system (Data star 200) and Table 3 shows the measured data.
The measured data of the die roll heights on the corner shape of the fine blanked parts were analysed and then two graphs were created as shown in Fig. 7.
Table 2 Die insert and guide plate insert set for the fine blanking experiments and its order Experiment order Die insert and guide plate insert set Corner shape Die chamfer shape Radius[mm] Angle[º] X[mm] A[º] 1st experiment No.1860 0.5 30, 45, 60, 90, 120 0.10 60 1.0 0.15 1.5 0.20 2.0 0.20 2nd experiment No.2360 0.5 30, 45, 60, 90, 120 0.10 1.0 0.15 1.5 0.20 2.0 0.20 3rd experiment No.2860 0.5 30, 45, 60, 90, 120 0.10 1.0 0.15 1.5 0.20 2.0 0.20 Fig. 6 Samples from the 1st experiment(a), the 2nd experiment(b) and the 3rd experiment(c) Table 3 Measured data of the die roll heights on corner shapes of fine blanked part Corner shape V-ring distance Radius[mm] Angle[º] D=1.8mm D=2.3mm D=2.8mm 0.5 30 1.169 1.257 1.325 45 1.152 1.162 1.276 60 0.940 0.961 1.066 90 0.788 0.833 0.921 120 0.695 0.715 0.784 1.0 30 0.912 0.954 1.080 45 0.905 0.949 1.069 60 0.905 0.949 1.069 90 0.759 0.789 0.830 120 0.672 0.685 0.745 1.5 30 0.722 0.748 0.802 45 0.722
Online since: June 2014
Authors: Ting Zhong, You Peng Sun, Qiao Liu
Therefore, it is necessary for data owners to encrypt data before outsourcing it for sharing.
Introduction Nowadays, in order to reduce the cost of building IT resources, data owners are likely to store their private data for sharing on the cloud server.
On the one hand, the data owner would like to share their data only with authorized users, so some access policy needs to be enforced.
It thanks to the reduction of the number of original ciphertext components (Therefore, the data owner in the proposed scheme spends the least amount of time on encrypting data).
Data Confidentiality.
Online since: January 2012
Authors: Guo Ming Liu, Hong Liang Wen, Wen Qiang Zhao, Li Ping Xue, Yue Jun An
Air gap flux density waveform of two kinds of motors In order to give quantitative analysis of air-gap flux density, we can directly discrete the air gap flux density waveform data with Ansoft, the flux density curve discrete into 1000 points, Programming with MATLAB Fourier Harmonic Analysis, get the results of air gap magnetic field Harmonic analysis about different rotor structures, it is shown in Figure 5 A The traditional rotor structure B The magnet arrayed rotor structure Figure 5.
With the measured data, we can draw a curve of cogging torque with rotation angle about two prototypes.
According to the experimental method, we measured two cogging torque curve with the rotation angle both the traditional rotor structure and novel permanent magnet motor, compared the simulated data with the experimental data, and express the simulation curves and experimental curves in the same coordinate system, as shown in Figure 7 and 8.
The comparison of two images shows that the trend of simulation curve and test curve is same, data are close, so the test is accurate.
[3] Yubo Yang Xiuhe Wang Xin Zhang Guangfu He “Cogging Torque Reduction Method of Magnet Shifting in Permanent Magnet Motors”[J] Transactions of China Electrotechnical Society. 2006(10)
Online since: September 2013
Authors: T.C. Li, H.W. Wu
Past studies have suggested that the brake pad and disc do not have heat reduction problem at a high temperature.
The data in Table 1 are substituted in Eq. 5 to obtain the spring coefficient k=0.195 kg/mm.
Table 1 Data of spring full-length of spring (mm) spring force (Kg) compressive displacement (mm) 139 0.79 4 F = k × (L-X) (5) F : output force of compression spring (kg) k : spring coefficient (kg/mm) L : overall length of spring (mm) X : length of spring after deflection (mm) Fk = μk × (F--w) (6) Fk : force applied to disc (kg) μk : kinetic friction coefficient F : output force of compression spring (kg) w : deadweight of disc (kg) F k = μk ×F (7) F k : force applied to disc (kg) μk : kinetic friction coefficient Figure 7 Schematic diagram of the compression spring displacement Data acquisition design The heating effect of the wind heating system should be known, therefore, the K Type temperature probe is mounted to measure the temperature change.
Experimental data analysis The heat energy is generated by solid friction driven by wind power, and the heat is transferred by heat exchange to the water to increase the water temperature.
The data were measured with one meter in front of the fan.
Online since: August 2011
Authors: Lei Zhang, Yan Chun Zhai, Hai Xin Zhao, Guan Jin Chen
The CVT can make the engine work in the most economic areas comparing with automatic transmission (AT) The CVT show off amazing fuel efficiency and the recognized data is the saving from 15 percent to 20 percent, which reach the fuel consumption indicator of manual transmission (MT), and which make the fuel-efficient as the benchmark for automatic transmission.
Fig. 1 Principle figure of EMCVT Engine torque is delivered to the driving fixed cone-plate shaft through the clutch, and its power passed to the metal V-belt through driving fixed cone-plate and movable cone-plate.The power of DC motor is exported to disc spring through reduction gear.
Then the data is transmitted to the computer via CAN bus for data processing.
Recording the data of speed maintain stability when engine throttle opening in one position, then averaging the data obtained.The curve which compared with the actual speed and the ideal speed is shown in Fig. 6.
Online since: August 2013
Authors: Marco Trapanese, Vincenzo Franzitta, Giuseppina Ciulla, Valerio Lo Brano, Alessia Viola
Table 1 contains data set as before specificated.
Data for the Three Stations. [1].
Combined Data.
Combined Data in the present application.
The importance of reliable climatic data in the energy evaluation.
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