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Online since: January 2006
Authors: Ke Liang Li, Guo Hong Huang, Lin Hua Jiang, Yue Bo Cai, Jian Chen, Jian Tong Ding
Detailed data on chemical analyses are given in Table 1.
Detailed data on its chemical analyses are given in Table 1.
Their expansion reductions are 26.4 % and 36.1 % respectively.
The expansion reduction of mix Ⅱ is as high as 81.9 % at 90 days.
The expansion reduction of the mixⅡwith 5 % silica fume, 20 % fly ash and 40 % GGBS can reach to 81.9 % at 90 days.
Online since: June 2004
Authors: R. Singh, A. Hefner, Ty McNutt, D. Berning, A. Akuffo
The role of excess carrier lifetime reduction in the mechanism for on-state voltage (Vf) degradation of high voltage 4H-SiC PiN diodes is investigated.
The measurements indicate that Vf degradation is accompanied by a reduction in end region lifetime and/or reduction in device conduction area.
The data indicates that τBIK and IRRM/IF decrease, Vf increases and τB is relatively constant as the device is stressed.
The decrease in IRRM/IF of Fig. 4b indicates that the base charge is reduced due to the reduction of τΑ, τK, and/or A.
This decrease in base charge reduces the base region conductivity modulation and thus increases the Vf as indicated by the data.
Online since: November 2010
Authors: Ryouji Kondou, Chobin Makabe, K. Kuniyoshi, Masaki Fujikawa, D. Shinohara
Table 1 shows the ultimate tensile strength and the reduction of area.
However, the value for the reduction area in copper clearly changed after applying pre-strain.
So, the value for the reduction of area in that case is measured just before broken.
The arrow shows data where the specimen was not broken at that time.
In the case of aluminum, the data is scattered, but the strengthening of the material can be seen.
Online since: November 2006
Authors: Paulo A.P. Wendhausen, Aloísio Nelmo Klein, Waldyr Ristow, P.R. Alba, D. Fusão, Ricardo Machado
The reduction of energy and gas consumption and shorter lead-times are economic advantages of PADS system.
The reduction of energy and gas consumption was very significant (energy from 800 kW to 500 kW and hydrogen from 120 m3 to 30 m3).
The reduction of energy and gas comsumption are economics advantages of the PADS system.
The reduction in MIM process lead-time achieved with PADS increased significantly Lupatech's productivity.
The reductions of energy and gas consumption as well as lead-time are PADS economic advantages.
Online since: November 2014
Authors: Zhi Min Du, Fei Mo, Xiao Long Peng
Finally CO2 emission reduction and recycle methods are proposed to achieve effective environmental protection and high economic efficiency.
Feasibility analysis of safety production by CO2 injection (1) CH4 concentration reduction by CO2 injection CO2 has better adsorption ability than CH4[7].
Meanwhile CH4 in coalbeds is diluted by free CO2 (free CO2 is injected to coalbeds but is not adsorbed), which also leads to CH4 concentration reduction.
Parameters for modeling are given in Table 1(sorption data of CH4 and CO2 are from Ren’s experimental results[8]).Then we utilize 300m×300m well pattern to study CO2 injection rate.
Finally suggestions for CO2 emission reduction during coal minning were proposed.
Online since: September 2013
Authors: Ming Qi, Yong Yi Feng, Xue Zhang Zhao
But FCM algorithm did not consider the basic characteristics of the various points, as well as different points due to the different position in the data set corresponds to the geometry space has the particularity of; Simultaneously USES the random initialization of clustering in the form of the data set contains unequal classes are miscalculation.
In this paper, the improved FCM segmentation algorithm is mainly in two aspects: first, establish a new approximate fuzzy c-means clustering algorithm, called data reduction significantly reduce the number of data, save the computation time; And then the FCM algorithm is introduced in the nonlinear high dimensional kernel function to map data to spatial clustering in division, finally USES the spatial neighborhood information revised the current pixel membership degree value, get more accurate clustering results.
(1) A collection of for the image data sets, Scheduled for number of categories for the k cluster centers,  is the first k pixel for the first i type membership function, p is a can control the clustering results of the fuzzy degree of constant, average , is constant, when the, fuzzy clustering is degraded as hard c-means clustering.
Using Chuang research methods in the literature [4] of mould has been completed after class nuclear clustering partition and data reduction image neighborhood pixels constraint processing.
Figure 2 Several convergence of objective function contrast diagram Conclusions In this paper, based on the data reduction technology proposed a new algorithm, realized the accurate location of the initial clustering center, improving the overall performance of FCM.
Online since: March 2010
Authors: Shi Hong Lu, Xia Jin
The comparison results of FEA result and experiment data indicate that the FEM (finite element analysis method) simulation is a power tool for the highly accurate prediction of springback behavior in sheet metal bending.
Critchley and Blount [8] also studied springback reduction in the draw-bending process.
Experiment data have been analyzed with the calculation program developed by our own.
Meanwhile, experiment data of every bending angle have been processed with polynomial expression fitting.
As exhibited in Fig.3, FEA and experiment data are consistent.
Online since: October 2010
Authors: Yong Jin Guo, Ping Zhu, Jian Hui Niu
However, most of current studies took ideal assumptions for the sheet gauge and material property in structural analysis, that is, the influence of residual forming data induced by sheet metal forming process is ignored on the subsequent crash behavior.
Although some numerical studies have been carried out on the influence of forming effects on crashworthiness of thin-walled structures [24], the reported experimental process and detailed data on Forming to Crash analysis are still limited, therefore further study is needed.
The thickness reduction mainly locates on the sidewall of hat channel.
Fig. 4 Collapse modes of crushed specimens Since all the stamped components displayed unsteady collapse modes at final deformation stage, the data of axial force vs. displacement only before 140 mm displacement are shown in Fig.5 (For simplicity, just one set of representative data was selected for the component under each stamping condition subjected to dynamic impacting test.) and Table 3 summarizes the tested peak forces and the mean forces.
It is found that residual forming data are significant factors affecting structure crash performance which can result in different crash behaviors for different forming conditions.
Online since: October 2011
Authors: You Lian Zhu, Cheng Huang
Experimental results show the proposed method can effectively remove impulse noise from a noisy image, especially from a low signal-to-noise ratio (SNR) image; the noise reduction performance has obvious advantages than the other.
According to Fig.2, noise reduction ability of the extremum morphological filtering algorithm decrease quickly when noise density increases.
Experiment results show that the proposed method can effectively remove impulse noise in the image, especially in low SNR images; the noise reduction performance has obvious advantages than the extremum morphological filtering algorithm.
Sonar Image Denoising Algorithm in Morphological Wavelet Domain, Journal of Data Acquisition & Processing, vol.25, no.3, 2010, pp.324-328
Online since: November 2016
Authors: Jae Hyuk So, Kwan Sik Park, Keun Yeong Oh, Kang Min Lee
Therefore, the objective of this study is to investigate reduction of initial clamping force in high-strength bolted connection under fatigue load.
The objective of this study is to investigate reduction of initial clamping force in high-strength bolted connection under fatigue load.
The data used in the test was conducted by applying the analysis.
Test and analysis result of induced 110% axial force specimen showed similar curve and reduction of axial stress.
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