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Online since: July 2015
Authors: Ting Ting Yuan, Xing Hua Xi, Jing Liu, Pan Gao, Ze Ying Yang
The through force sensor was applied to measure SMA bar stress during the loading process and thermocouple and temperature patrol instrument was used to acquire SMA bar temperature data automatically by computer during electrifying motivation process (Fig. 3).
The data on each instrument and the crack width should be scrupulously recorded all through the process.
The automatic recording program of temperature patrol instrument was used to acquire SMA bar temperature data during entire electrifying motivation process.
On the other hand, because of the decreasing of mid-span deflection, test beam moved upward and the loading equipment was subjected to a new reaction, which was increasing constantly, from the beam (table 4), and this, in turn, made the force on beam increase too, thereby it restrained the further reduction of the strain and deflection.
Online since: October 2018
Authors: N.A. Sazhenkov, M.Sh. Nikhamkin, D. Samodurov
Estimation of the adequacy of the adopted model of fatigue life to experimental data was carried out from the value of the Pearson linear correlation coefficient r: (5) Fig. 3.
Such sandwich panels are used in the construction of gas turbine engine case parts to provide the required the noise suppression properties and weight reduction.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.99.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.92.
Online since: August 2013
Authors: Xiao Yi Yang, Yan Feng Liu, Jian Jun Wang
Hence, reduction of CO2 concentration in the atmosphere, especially reducing the emission of CO2 from industries with fossil fuel, is one of the major effective measures and challenges in any greenhouse gas mitigation strategy.
The aquifers here are usually characteristic of large thickness and wide distribution, and the cap rock is poor in hydrodynamic property while the porosity and permeability of the aquifers are ideal.The basic statistical characteristics of main parameters for the storage capacity assessment was calculated (Table.1), and it can reflect that the spatial variability of Thickness Ratio based on the data we acquired are stronger than the rest three parameters.
If the data for spatial discretization was adequate, this method could take account of the spatial variability of the hydrogeological parameters, and the evaluation results were high precision.
Using the same batch of data to calculate the storage capacity as shown in the Table.2: Table.2 Comparison of assessment results with different parameter determination Parameters Empirical Value Mean Value Mixed Value Spatial Discretization Area of Aquifers[km2] 39800 \ \ \ \ Sedimentary Thickness [km] 2.70 \ \ \ \ Volume of Formation[km3] \ 51748.54 51748.54 51748.54 51718.58 Thickness Ratio[%] 14* 27.11 27.11 14 \ Porosity[%] 10* 15.63 10 15.63 \ Density of Formation Water [kg/m3] 1025* 1066.39 1066.39 1066.39 \ Solubility of CO2[mol/kg] 1.16* 1.13 1.13 1.13 \ Capacity[Gt] 78.71 116.26 74.36 60.04 81.80 *Extract from Koide and Wu’s research[6, 10] While Spatial Discretization method reflecting the advantages of storage capacity of space variation, it claims the quantity of date collection and rational spatial distribution of them.
Online since: November 2013
Authors: Feng Ming Teng, Xing Wang Zhang, Fang Yuan Liu, Qian Cong
We weighed the amount of wear each two times of grinding by High Precision Electronic Balance(shown in Fig. 4), and took the average of two rollers’s wear volume as analysis data of the experimental.
试验号 A Striped depth [mm] B The number of stripes 1 1(0.6) 1(60) 2 1(0.6) 2(70) 3 1(0.6) 3(80) 4 2(0.8) 1(60) 5 2(0.8) 2(70) 6 2(0.8) 3(80) 7 3(1.0) 1(60) 8 3(1.0) 2(70) 9 3(1.0) 3(80) Experimental Results and Regression Analysis Each of the tests has two rollers, each roller has wear volume, we made the average value of the amount of wear of the two rollers as the test indicators, The following we use orthogonal polynomial regression design for data processing, Table 2 is regression design table.
Since there is no repeated tests, (1) (2) The above table data can be calculated: Usually called factors of α≤0.1 as significant factor, those are X1(z1), X1(z2), X2(z2), X2(z1)X1(z2) and X2(z1)X2(z2).
The sandskink of the sahara-A model for friction and wear reduction[C].
Online since: July 2013
Authors: Gui Li Wang, Xiao Rui Qiao, Jin Chen, Chun Guang Li, Ying Jian Wang
Therefore, in order to provide reliable technical data for the maintenance work of SOFC, we need to detect the laying depth and buried routing of SOFC on a regular basis.
The magnetic field produced by armored layer will be added on ocean background magnetic field, hence, if the high precision of underwater magnetic field data is obtained, we can analyze the actual magnetic field anomaly characteristics, to identify and locate submerged by the magnetic anomaly characteristic [2].
Nicholas P.chotrios[5] verified that low-frequency sound waves can penetrate the seabed and it is less affected by the submarine small-scale fluctuation, meanwhile, with the frequency reduction, the impact of sediments on attenuating sound waves decreases, which ensures that target can be effectively irradiated and echo can be recieved.
InSAS not only can observe the laying depth and buried routing of the continuous SOFC, but also can obtain the attitude of SOFC, to provide reliable technical data for the maintenance work of SOFC.
Online since: August 2014
Authors: Ying Wei, Shao Guang Huang, Rui Min, Qi Jia
Then we use our own approach to process the spectrogram data and obtain some projection vectors.
The insect voices are obtained from data base of United States Department of Agriculture [8].
After producing the spectrogram, some basic image processing methods like noise reduction, normalizing and graying [9,10] are used.
Fig.4 shows projection data in frequency domain of two different insects.
Online since: September 2015
Authors: S.L. Soo, A. Barnacle, D.K. Aspinwall, Nor Hafiez Mohamad Nor, J.B. Saedon
In the late 1960’s, Kahles and Field [1] developed a procedure for surface integrity evaluation which suggests the type of data measures and analysis necessary, depending on the level of workpiece surface integrity knowledge required.
However in order to achieve a good flatness as well as machining datum, the surfaces of the workpiece were ground and further face milled with VFSDD0800, Ø8.0mm face mill cutter with cutting parameter of Vc=100m/min, f =1800mm/min and doc=0.1mm as manufacturer suggested.
Figure 8 shows the results compared against the material bulk hardness and face milled for machining datum.
The data was found to converge into two distinct groups, which reflect the different depths of cut used.
In general, a reduction in workpiece hardness is caused by thermal softening (assuming the absence of heavy workpiece deformation/strain hardening), typically associated with severe operating parameters.
Online since: April 2012
Authors: Mohd Kameil Abdul Hamid, Abd Rahim Abu Bakar, Ahmad Razimi Mat Lazim
A number of transducers were used to measure the squeal data and the data was then recorded through data acquisition system (DAQ) of 16 channel Dewetron Fast Fourier Transform (FFT) analyzer.
Quaglia, Disc Brake Squeal: Mechanism, Analysis, Evaluation and Reduction/Prevention, SAE-Society of Automotive Engineers, 2006
Online since: May 2012
Authors: Wei Wang, Feng Shi
Recoding last 10 minutes for each measuring point with a 5 seconds interval, take the average of the data.
Japanese made Ion Tester COM-3010PRO is used to test the anion concentration in plants and materials, 20 seconds for one data and take the peak number, 3 data for each test.
The expansion of urban green space and reduction of unnecessary hard pavement can not only be beneficial in increasing air anion concentration, reducing dust pollution, improving air quality in cities and urban environment, but can also build an ideal urban landscape pattern.
Online since: December 2012
Authors: Yue Feng Zhu, Qin Yang, Wei Tang, Dao Zhu Wei
The product design solution strategies and realization algorithm are studied by configuration technology based on ontology and knowledge rules, it can storage heterogeneous data sources and retrieve the complex association through using favorable concept hierarchy and logical reasoning, and provide customers with more accurate, appropriate and comprehensive data [2].
The knots mapping is implemented through the generated information by data conversion in terms of the similar associated information with semantic feature between different domains.
Under the action of rationality validation mechanism, it is an effective measure to reflect the configuration rationality and integrity of the associated node by the means of reduction of status information [4].
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