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Online since: June 2011
Authors: Cheng Zhong Yang, Wen Jie Wan
By means of finite element method software simulation analysis, using strength reduction finite element method analyse factor of safety of embankments.
Using safety factor through finite element software by strength reduction multiply by conversion coefficient, get new safety factor.
Strength reduction finite element method use this scientific concept, according to scientific principles(Duncun1996) that the slope parameters of material strength to withstand the maximum reduction factor is the minimum safety factor for this slope,can analysis of slope stability more accurately and guide our future design and construction work.
In ANSYS, for rock, soil and other granular materials using D-P material options, the selection of materials is Mohr-Coulomb not equiangular hexagon circumcircle Drucker-Prager yield criterion, it can be expressed by I1, J2, θσ: (2) Where: α, k is the parameters be related to soil cohesion and internal friction angle; Data[2][3] showed that: Mohr-Coulomb not equiangular hexagon circumcircle Drucker-Prager yield criterion using by ANSYS is unsafe in the actual project.
Application of Strength Reduction FEM in Soil and Rock Slope[J].Chinese Journal of Rock Mechanics and Engineering, 2004, 23(19):3381~3388
Online since: September 2013
Authors: Ke Wang, Jian Tao Liu, Wen Bo Mao
P_base express the base load of TOU, that is the original data of IEEE39bus model.
(3) In Eq.3, P_RTP is the load power; P_base is the original data in IEEE39bus model; Pri_rt is real time price; Pri_base is the average price of historical data.
In day-ahead part, we calculate OPF 96 times, to get the base data (OPF output).
Then, the DR parameters are set according to these base data.
In daily part, we calculate OPF for another 96times, to get the DRs operation data.
Online since: June 2012
Authors: Mahmoud M. Tash
Each data point on the plots of hardness measurement represents the average of at least six readings.
Each UTS data point represents the average of at least three values.
Hardness increases by 20% as reduction ratio increases from 1.11 to 1.29.
Note that an increase in reduction ratio will also be accompanied by a reduction in impact (Charpy) toughness, Figure 1.
Similarly, the yield strength is reduced from 834 to 309 N/mm2 (reduction of 63%) and from 649 to 468 N/mm2 (reduction of 28%) for the annealed and normalised specimens, respectively.
Online since: February 2013
Authors: Mei Song, Zong Yuan Lin, Yan Qing Zuo, Tao Chen
China has made carbon reduction commitments ​​in the Copenhagen Climate Conference, which is that by 2020, China's carbon intensity is 40-45% lower than 2005.
Basic data.
Using the total energy consumption amount data of the third industries in China's in 2004-2011 as the basic data of the forecast, the data are from the 《China Energy Statistical Yearbook 2009-2012》.
Table 3 shows the CO2 emission and carbon intensity prediction in 2015 and 2020 and analysis reveals that China's current energy consumption structure cannot achieve the 2020 carbon reduction target.
Therefore, we should optimize China's energy structure from two aspects of energy saving and emission reduction.
Online since: July 2012
Authors: Hua Ying Liang, Hua Wang, Bing Xiang Liu
In past studies,we have accumulated a large amount of data, how to use these data to date identification accurately ?
As S is the Q-independent sub-tribe of P, and , the family is called Q- Reduction of P. 2.
Experimental Table 1 Jingdezhen Yuan, Ming and Qing blue and white porcelain enamel chemical composition data from ref. [2].
Most of the chemical composition data of blue and white porcelain enamel is continuous data in Table One, so the discrete normalized is essential.
The model selected three sets of data in each Yuan, Ming and Qing dynasties Table 2 total of nine sets of data as a probabilistic neural network pre-measured data, the remaining 35 sets of data is training data, the probabilistic neural network input is variables for the network the target is blue and white porcelain the age category.
Online since: June 2014
Authors: Nor Azwadi Che Sidik, Nasir S. Hassen, Jamaluddin Md Sheriff
Effect of Nozzle Angleson Spray Losses Reduction Nasir S.
The nozzle angle 65° gave the highest drift reduction compared to the other nozzle angles.
The number of variables involved in any field studies makes data interpretation difficult, so wind tunnel studies have been advocated to characterize the effect of operating parameters on the risk of spray drift with a high degree of reliability because weather conditions cannot be controlled in the field[4-8].
The objective of this study is to examine effect of spray nozzle angle on spray losses reduction.
The data from the spray tests were collected and analysis of variance (ANOVA) on the spray drift was carried out, using a mathematical model for a completely randomized design.
Online since: March 2013
Authors: Jaroslav Filip, Jana Šefčovičová, Peter Gemeiner, Jan Tkac
Bilirubin oxidase (BOD) was proved to adsorb effectively on such a nanointerface, retaining its catalytic activity for reduction of dioxygen to water, which was proved by cyclic voltammetry.
Furthermore, BOD was adsorbed on graphene oxide with subsequent electrochemical reduction of graphene oxide into a conductive graphene film with BOD trapped within the matrix.
Modification of GCE by either GO or rGO and subsequent incubation with an enzyme solution was not effective for bilirubin oxidase (data not shown), even though similar protocol was confirmed to be suitable for laccase immobilization [9].
Therefore a reduction of GCE||GO/BOD was performed in order to turn GO into conductive rGO.
An observed amperometric response (Fig. 1 A-c) confirmed that immobilized BOD was able to withdraw electrons from rGO and utilize them in O2 reduction without any mediator involved.
Online since: February 2011
Authors: Ying Xue Zheng, Hai Tao Wang, Huan Zhang
The effect trichloroethene (TCE) reduction by the supported nanoscale Fe-Cu bimetal is researched in the batch experiments.
Kinetics studies show that the reduction of TCE process obeys pseudo-second-order kinetics.
The slopes obtained from linear regression of the data yield the first-order apparent rate constants and half-lives(t1/2) for TCE degradation
The excess H2 adsorbed on the surface of bimetal could hamper the TCE adsorption and dechlorination reduction.
In the reduction process by Fe-Cu bimetal, the ratio of Cu to Fe is an important parameter influencing the reaction rate and kinetics.
Online since: February 2016
Authors: Boris Vladimirovich Kargin
There is the wall thickness change when the thin-walled tubes sinking is used, the larger the total reduction in a tube diameter, the greater the change is.
The study targeted the following ways of sinking pass: drawing in a single die with a diameter of 13,8mm (0.54″) with a large reduction in one pass, drawing through the two dies with the reduction in two passes and diameters 18,2mm-13,8mm (0.7-0.54″), 16,5mm-13,8mm (0.6-0.54″), 15,0mm-13,8mm (0.59-0.54″), simultaneous drawing in two dies in a single pass with diameters 18,2mm-13,8mm (0.7-0.54″), 16,5mm-13,8mm (0.6-0.54″), 15,0mm-13,8mm (0.59-0.54″).
The reduction distribution between dies while drawing in two dies in one and two passes doesn’t influence the wall thickening value, that is consistent with the results of physical experiments described in the work [1].
The comparison of a calculated data from the table 1 shows that if there is drawing conducted simultaneously in two dies, the normal stress maximum values in the second die is substantially less than during the drawing in two dies in two passes.
Based on the foregoing, for an even wear there should be conducted the same reductions per pass during the simultaneous drawing in two dies.
Online since: April 2014
Authors: Shu Lu Zhang, Qiang Zhang, Dong Sheng Zhou
Because of the complexity of human motion, one-time motion capture data is insufficient to cope with all the movement.
Qu et al [2] adopted Gaussian model to reduce the dimension of motion data, which maps the motion data into a low-dimensional hidden space, we could detect the segmentation points in this low-dimensional space.
JING Shu-xu et al [3] proposed a method to find the internal structure of motion data by PCA method.
Our approaches for motion segmentation We use the LLE algorithm to get the feature curve of the original data, Sam T.
The motion capture data used for the experiments is from CMU.
Showing 2591 to 2600 of 40694 items