Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: October 2014
Authors: Xiao Xi Hu, Xian Wei Zhou
It makes resource reservation through migration of virtual machine, uses dynamic trend prediction algorithm to forecast the load changes of data center, and puts forward the concrete complement to adjust reduction.
Experiments show that the combination algorithm proposed in this paper are efficient to improve the performance of data center, accelerate the response speed and increase the precision.
Experiments show that this proposed algorithm efficiently enhances the performance of the data center and improves the response speed and the computing accuracy.
The Ant Colony Algorithm Based on Dynamic Trend Prediction 3.1 The Scheduling Optimization Principle of Cloud Computing Resource The scheduling and utilization of resources depends on the scheduling function of virtual machine, and the power works by the power management function of host machine and the load prediction function of data center.
Simulation results show that this algorithm effectively improves the performance of the data center.
Online since: July 2012
Authors: Chien Chou Huang, Mei Yung Chen
First, we use the piezoelectric microphone and data acquisition card NI-PXI 4472B to acquire LS signals, and signals preprocessing.
Fourier transform is a method that usually use in frequency-analysis and can divided into two kinds by data type, which are discrete and continuous
And the third result, the teaching signals were transformed by wavelet transform is more accurate and faster than the real data, because the teaching signals are more clear and have less noise, it’s more suitable for neural network calculating. 3 Conclusion Morlet wavelet transform in this study revealed the most information of the lung sound signals in the time-frequency transform, it’s also suitable for the signals which are non-stationary and non-periodic.
Reduction of Heart Sounds from Lung Sounds by Adaptive Filtering,” IEEE Transactions on Biomedical Engineering, vol.33, no.12, 1141-1148
“Recursive least squares adaptive noise cancellation filtering for heart sound reduction in lung sounds recordings.”
Online since: August 2013
Authors: Jian Hua Zhao, Rui Bo Zhang, De Bin Zhu, Hong Bin Gao
Orthogonal wavelet decomposition and wavelet noise reduction methods are used to separate shock component from test results.
A NI type data acquisition instrument, with PXI-4472 boards and PXI-6250 boards is used to measure acceleration and strain.
Fig. 3 Measured point arrangement Test Results And Data Analysis Method Time-domain results.
Typical time history of measured acceleration in the vertical direction is shown in Figure 4. the response before time 2.048s is just caused by the diesel engine operation and data frequency is complex.
Fig. 9 Shock acceleration response of point 3 Summary The shock test method of marine diesel engines to underwater explosion include measurement points arrangement, hardware configuration of the test system, data processing methods and so on.
Online since: October 2012
Authors: Xin Kun Zhu, Yu Lan Gong, Shi Ying Ren, Xiao Xiang Wu, Yan Long
Ultrafine-grained Cu–Al alloy samples are processed by means of rolling at ambient temperature and rolling reduction exceeds 90%.
The total thickness reduction for these samples was above 95% after multiple rolling passes with a thickness reduction of 40 μm imposed in each separate pass.
Obtain the experimental data by using the software provided by Shimadzu Corporation, and then analyze of the data.
Online since: April 2017
Authors: E.V.M. Carrasco, Fernando José Silva, J.N.R. Mantilla, M.A.P. Rezende, White J. Santos, E.M. Piancastelli, Aldo G. Magalhães
The carbonation depth data (d) depending on time of exposure to CO2 (t) were used to calculate the carbonation coefficient (K) of each mix proportions, according to Eq. 3 proposals for situations of carbonation under humidity stable condition, based on Fick’s second law [3-5, 7-9].
It is possible to see a large reduction in its percentage when the proportion of water decrease in the mixture.
Only in the 0.48 w/c ratio, was possible to notice a porosity reduction over time.
Days of carbonation Carbonation (mm) w/c 0.48 w/c 0.60 w/c 0.70 w/c 0.75 0 0.00 0.00 0.00 0..00 7 0.30 1.63 2.85 3.68 14 0.52 3.75 4.69 5.80 28 1.81 4.94 7.64 9.34 56 2.76 6.13 9.89 13.38 84 2.88 7.48 12.12 17.08 From the data in Table 1, and based on the mathematical model to predict the carbonation progress shown in Eq. 3, a function was set for each one of the sets of values obtained using the software LAB Fit®.
In addition to the constant K, the software also calculates the model determination coefficient (r²), which indicates how well the sample regression fits to the data.
Online since: September 2013
Authors: Zaki Su’ud, Nuri Trianti, Idam Arif, Eka Sapta Riyana
The reduction of k-inf value are much little with the addition of Pa-231.
The k-inf value reduction of the cell of the fuel caused by many neutron absorbed by Pa-231.
From characteristic data of Pa-231, its cross section capture was about 200 barn.
From resulted data, could be concluded that addition of Pa-231 significantly reduce excess reactivity and also increase sustainability.
Tsuchihashi, in: SRAC95; General Purpose Neutronics Code System, JAERI-Data/Code 96-015, Japan Atomic Energy Research Institute, Japan (2005) [6] Nuri Trianti, Zaki Su’ud, Eka Sapta Riyana, Design Study of Thorium Cycle Based Long Life Modular Boiling Water Reactors, Indonesian Journal of Physics Vol. 22 No. 4, p. 133-137, (2012)
Online since: January 2012
Authors: Lin Pan, Chun Han
The author suggest the autoclaved fly ash brick masonry proposed formula with Changsha university of science and technology, and Chongqing university the relative test data after that compared, autoclaved fly ash brick wall shear strength calculation formula is recommended.
Take stress non-uniform coefficient = 1.2, by 31 test data are fitting, can get = 3, fitting error is 0.29, wall shear strength of average as follows: (4) The shear-friction formula.
Considering the masonry shear stress is not evenly distributed section when the wall destroy, so will the pure shear strength reduction multiplied by the coefficient.
Can get the type as follows: (5) By 31 test data fitting, = 1.04, fitting error is 0.22; = 0.56, fitting error is 0.10.
Conclusions and Suggestions The theory that fly ash brick masonry autoclaved advice formula get by 31 slices of fly ash brick wall autoclaved test data after contrasting and analyzing,.
Online since: July 2007
Authors: Yao Wu, Xing Dong Zhang, X.H. Shi, L. Zheng, J.M. Luo
Based on CT scan data, relatively accurate model of femur for finite element analysis (FEA) were obtained.
A patient with left leg at higher amputated position provided the resource of CT data of residual femur, which was shown in Fig.1.
The data were given in the DICOM format and can be transfered into the CAD software.
Maximal stress of new type of implant was 207.00MPa and that of one-part implant was 240.98MPa, and maximal perpendicular Fig.1 CT scan data Acetabulum Fig. 2 Improved design of osteointegrated implant a:CAD model b: FE model distal part lag part femur Fig.3 model of the assembly deformation was 0.0918cm and 0.0682cm, with the reduction of 14.51% for the former and 25.7% for the latter.
Furthermore, the reduction of peak stress promoted with the increasing of loads, which is sharp under abnormal loads.
Online since: September 2014
Authors: Yan Ni Deng, Yuan Xing Lv, Shi Min Liu
However, for the structural features of an object can be represented by a manifold, then the data dimensionality reduction of how to effectively maintain the manifold structure of the original data has been a research focus for researchers and research fields.
The experimental results are shown in figure 1: Chart1 Relations between face recognition rate and dimension reduction of dimension Experimental analysis: as chart 1 shows, in the dimension of between 10-80 dimensions, compare FSLLE, ALLE, AFSLLE three algorithms, it can be clearly found that when combining two of them, AFSLLE algorithm recognition rate is obviously higher than that of the other two algorithms, it shows that these two kinds of improved algorithm fusion approach may be used for application, it also make a statement for the prior knowledge is a kind of useful information, which should be used fully and will be helpful for the improvement of algorithm.
Application of clustering and improved LLE based on data from the dimensionality reduction.
Online since: January 2022
Authors: Tatiana Kozlova
A noticeable reduction in the width of the twin lamellas was revealed.
The analysis of the ρtω value according to the TEM images gives more correct data on the density of twin boundaries compared with the diffraction method of back-scattered electrons.
According to the TEM data, with ε = 50 %, the average size of fragments (grains) of the α'-phase is 110 nm.
The obtained data are similar to the images obtained for samples after cold rolling without alloying with hydrogen, but there are some differences.
We can also see the reduction in the thickness of the twin lamellae with increasing the degree of deformation at all current densities.
Showing 5741 to 5750 of 40321 items