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Online since: January 2013
Authors: Wei Cheng Tung, Chang Shin Lee
The results from pulsed field gradient NMR data revealed that one of the peptides may undergo a more favorable self-assembly as temperature was increased, while other three peptides were found to form larger self-assemblies at lower temperatures and continuously dissociate into the monomeric form with increasing temperature.
However, the energetic reduction in peptide-solvent interaction may be more significant than the reduction in peptide-peptide interaction.
This result is presumably due to the energetic reduction of the interaction with solvent and the increased dynamics as a consequence of this.
Online since: August 2011
Authors: Zhao Qiang Shu, Xian Yue Cao, Ji Neng Zhou, Hui Chen, Jian Ping Tan, Jin Li Gong
The system is applied in 300MN large forging hydraulic press, and large amounts of monitoring data are collected.
Data analysis is carried out.
As to the spatial attitude of moving beam in large hydraulic press, there is little measuring method and data analysis reported currently.
The stress reduction is 12.4Mpa and the reduce rate is 30.9%.
(2) Apply the new system in 300MN hydraulic press, large amounts of monitoring data were collected for the first time.
Online since: January 2014
Authors: Zhen Nan Fan, Jian Gao
Failure Analysis and No-load Voltage Waveform Optimization and damper bar Heat Reduction of a large Tubular Hydro-Generator Gao Jian1,a , Fan Zhen-nan1,b 1 Technology & Skill Training Center of Sichuan Electric Power Corporation Chengdu China,610072 aGaoJian_sc@126.com, bfanzhennan@126.com Keywords: failure analysis, tubular hydro-generator, no-load voltage waveform ,damper bar, loss and heat Abstract.
For the failures of a 30MW tubular hydro-generator such as no-load voltage waveform is bad, damper bars are over heat, a multi-slice moving electromagnetic field-circuit coupling FE model of tubular hydro-generator and a 3D temperature field FE model of the rotor are built respectively.And the computations about the failure reasons and the optimized design schemes are implemented and analyzed by these modles.And the calculation results are coincident well with the test data.
The basic data of the tubular hydro-generator The basic data of the generator are showed in Table 1. 5 different design schemes are calculated, which are showed in Table 2, t1 is the stator tooth pitch, which is invariant, t2 is the pitch of damper bars.
By coulomb norm ▽·A=0 and the boundary condition of the problem region, the 2D boundary value problem of nonlinear time-varying moving electromagnetic field for the generator is then obtained: (2) Table 1 The basic data of the generator Parameter Value Rated power (MW) 30 Rated voltage (kV) 10.5 Power factor 0.92 Number of slots per pole per phase 11/2 Table 2 5 design schemes of structure Design scheme t2/t1 Slot skewed of stator δB (mm) Failure scheme 0.62 0 0.5 Optimized scheme1 0.8 0 0.5 Optimized scheme2 0.98 0 0.5 Optimized scheme3 0.98 0.5 slot skewed 0.5 Optimized scheme4 0.98 0.5 slot skewed 0.1 Fig. 1 The over heat regions of damper bars in rotor poles Fig.2 The problem region and meshes of electromagnetic field B.
Online since: June 2013
Authors: Wen Dong Wang, Kong Qiao Wang, Qiang Wang
The system is made up of five modules: face data sampling module, face modeling module, data transmission module, model displaying module, and user interface module.
Face data sampling module is responsible for capturing user’s facial data.
Data transmission module is responsible for transmitting facial data from client to server and face model from server back to client.
As shown in chapter 3, the system compresses facial data into videos to save the costs of memory on the client and increase the efficiency of data transmission.
The unit of data in table 1 is [times].
Online since: August 2014
Authors: Dagmar Vidriková, Kamil Boc
(source: authors, according to statistical data [3-4, 6-8, 12-13]) Selected socioeconomic data of national territorial units of Euroregion Beskydy members were investigated utilizing the sources of statistical data [3-4, 6-8, 12-13] listed in Table 1 and cluster agglomerative analysis of the nearest neighbor.
Table 1 Selected socioeconomic data from territorial units involved in Euroregion Beskydy.
Figure 3 Cluster analysis of socioeconomic data of the regions included in Euroregion Beskydy.
Table 2 Correlation dependence between individual socioeconomic statistical data of territorial units associated in Euroregion Beskydy.
(Source: authors, according to statistical data of 2011[3-4,6-8,12-13]).
Online since: October 2011
Authors: Guang Hua Yang, Yu Cheng Zhang, Hai Ying Hu
That is to say, pseudo-static method is adopted to make vibration inertia force equivalent to a static force on slope bars and then strength reduction method or limit equilibrium method is used to calculate the safety factor, which can directly evaluate the stability of slope.
That is, pseudo-static method is adopted to make vibration inertia force equivalent to a static force on slope bars and then strength reduction method or limit equilibrium method is used to calculate the safety factor, which can directly evaluate the stability of slope.
After replaying the on-site records and reading the data, the peak vibration velocities in all sub-directions of each test point can be obtained through calculation, see Tab.1.
That is, pseudo-static method is adopted to make vibration inertia force equivalent to a static force on slope bars and then strength reduction method or limit equilibrium method is used to calculate the safety factor, which can directly evaluate the stability of slope.
Online since: November 2013
Authors: Yu Li, Wen Bin Dai, Yong Fan, Da Qiang Cang, Yuan Yuan Zhou
China 3 Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, 980-8577, Japan adaiwenbin5210@163.com, bleeuu00@sina.com Keywords: glass-ceramics; Al2O3; BOF slag; chemically pure reagent Abstract: Directly recycling residual iron element in modified BOF slag after reduction and manufacturing glass-ceramics from these remaining inorganic slag materials is an effective way to reuse the waste heat and slag materials of hot BOF slag.
With the help of waste heat and some inorganic reagents within BOF slag, the hot slag undergoes modification and reduction processes, which not only recovers the residual iron element and waste heat in slag, but also manufactures the glass-ceramics (GCs) and increases enterprise economic benefits [1-4].
These processes were determined by the DTA data in Fig.2, with a heating rate of 7°C·min-1 for sintering process and 5°C·min-1 for crystallization process, respectively.
Yang, et al., Study on Preparation of Glass-ceramics from Reduced Slag after Iron Melt-reduction.
Online since: January 2012
Authors: A.P. Miodownik, Zhan Li Guo
Although this model is simple and shows reasonably good agreement with many of the experimental data, it does not consider the complete precipitation kinetics, i.e. the evolution of precipitate volume fraction and size with time.
The calculated flow stress curve is compared with the experimental data, Fig. 2.
Flow stress curve at 950°C at strain rate 10 s-1, experimental data from Ref. 24.
Calculated TTP curves for four microalloyed steels in comparison with the experimental data from: (a) Le Bon,1 (b) Watanabe,2 (c), Steel2 of Hansen et al,5 and (d) Steel3 of Hansen et al.5 (a) (b) (c) (d) equilibrium fraction, Veq_max, is shown in Fig. 3 for each alloy.
- Reduction of driving force during transformation, which may slow down the precipitation kinetics.
Online since: April 2009
Authors: Lubna Aamir, M.S. Qureshi, R.N. Dubey, M.M. Malik, Ishrat Alim, A.H. Siddiqui
It is an established fact that the properties of the materials such as metal, their oxides and sulfides change with reduction in size in the nanometer range [1].
Pauling [12] initiated that ''the radius of an atom reduces with the reduction of its coordination number CN.''
The FTIR interactive interpreting data confirms the presence of Amine group NH2 (3540 to 3200) cm-1 in the capped sample as possible structural unit present in the region is also in full agreement of confirmation of this particular amine group in the test (chitosan) and experimental sample, which confirms the success of stabilization process.Vibrational modes due to Cd-S are expected to be present below 450 cm−1 [15], but are not accessible to this experiment.
It was identified comparing with the published data (JCPDS 1411).
Table1 contains comparative XRD data of the synthesized and standard CdS. 2θ 2θ d d hkl (experime ntal) (standard) value (experimenta l) value (standard) Corresponding to standard d value 26.86 26.73 3.32 3.33 111 45.20 43.98 2.004 2.06 220 48.16 47.40 1.9 1.91 311 Table 1: The comparative XRD data of experimental and standard values of CdS.
Online since: December 2011
Authors: Kuan Fang He, Zong Qun Deng, Xue Jun Li, Ling Li Jiang
Samples of the input data are divided into odd sample sequenceand even samples sequence (1) (2) (2)Predict.
(3) If does not meet the IMF conditions, regard as initial data, repeat steps (1) and (2) to get the averageof the upper and lower envelope, then determine whether meet the conditions of IMF, if not then repeat it times, obtain and made to meets the conditions of IMF.
(4) Separated from, obtained that: (8) Regardas initial data and repeat (1)-(3), gained the second IMF component of, repeat it times and obtained IMF components of.
The Fig. 4 shows that the lifting wavelet has some noise reduction effect in early weak AE fault signal.
[5] Sun Wensheng, Wang Fengtao, Zhang Zhixin etal.EMD noise reduction and spectrum kurtosis method in rolling bearing early fault diagnosis applications [J].
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