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Online since: February 2014
Authors: Katima Jantarapun, Chutimon Satirapipathkul
The data were averaged from three independent experiments.
Colorimetric assay based on a chemical reduction of Folin-ciocalteu phenol reagent following Folin Ciocalteau micro method was used to evaluate total phenolic compounds [15].
High viscosity of KGM content leads to a reduction in TPC diffusion coefficient within film [16].
Online since: December 2012
Authors: Yao Hui Lu, Jing Zeng, Tian Li Chen, Li Min Zhang
And then the SID file of the modal shape, which was gotten by Guyan reduction method, was converted into the software SIMPACK.
Guyan matrix reduction method omits inertia terms; therefore it is exact when the mass of the reduced DOFs is small.
FEMBS is the interface between the finite element software and SIMPACK, which is used to input the data of flexible body in multi-body system simulation [7,8].
Online since: February 2014
Authors: Richard Kuracina, Denis Šandor, Karol Balog
FTA Operation FTA is a term that combines the graphical model which is called the fault tree or fault tree model, thequalitative analysis of the fault tree and the quantitative analysis of the fault tree, which includes the probabilistic failure data and the associated results. [4] Graphical part clearly illustrates conbinations of failures that will cause one specific failure of interest, called a Top event. [5] FTA Structure The basic elements of a fault tree may be classed as: · The TOP event (normally some undesired event that can be set by other analysis – HAZOP, FMEA) · Primary events (events not developed further) · Intermediate events (events between the top event and the primary events) · Logic gates (define the logic relating the inputs to the outputs) FTA Logic Calculation in Fault Tree analysis are based on Boolean algebra (BA).
The majority of these algorithms (table 2) has tried to improve upon the Mocus algorithm. [7] This is a list of the common of them: · Direct method · Descending method (Mocus algorithm) · Ascending method (Miscup algorithm) · Reduction method · FATRAM algorithm · Inversion metod (inmin, SW algorithm) [7] MOCUS algorithm MOCUS is the oldest and the most udes algorithm.
The reduction of these cut sets provides us the list of minimal cut sets of the fault tree.
Online since: September 2014
Authors: Sathish Kumar Dhayalan, Andriy Hikavyy, Roger Loo, Kurt Wostyn, Karine Kenis, Yosuke Shimura, Erik Rosseel, Harald B. Profijt, Jan Willem Maes, Bastien Douhard, Wilfried Vandervorst
PL measurements (data not shown in this paper) carried out on the cool cleaned samples capped with SiGe and Si indicated better quality of interface for the sample with 3nm of Si loss at 600oC.
We are clearly able to see a reduction in the amount of interfacial oxygen upon using the cool clean process (Figure. 2). 1 nm loss 3 nm loss Figure 2.
Cool clean allows the reduction of the interfacial oxygen by an order of magnitude in comparison to the HF only clean.
Online since: September 2013
Authors: Dobromil Pryl, Jitka Mikolášková, Radomír Pukl
This 1% reduction improves the response of elements with small cracks (prevents unrealistically low damage in regions with very narrow cracks).
For all experimental data, the correction procedure for basic fatigue parameters with respect to specimen age [7], has been applied.
The damage results in a stiffness reduction and displacement increase. 7. repeating steps 2 to 6 for increasing cycle counts until the model fails or 2 millions total cycles are reached.
Online since: March 2014
Authors: Magnus Langseth, Nguyen Hieu Hoang
Moreover, the possibility of using aluminium rivets as an alternative to steel rivets can contribute to the reduction of the car body weight.
It can be seen that reduction in material strength of the plates to be joined lowers significantly the required force.
Numerical results were compared with the test data in terms of force-displacement curve and cross-sectional geometry in Figure 5b, It can be seen that the numerical model is able to capture the experimental force and rivet deformation with a reasonable accuracy.
Online since: March 2013
Authors: Keiji Yanase, Masahiro Endo, Hisao Matsunaga, Teruki Usuda, K. Matsuno
Recently, to ensure the safer use of fuel cell systems in the near future, a great amount of effort has been undertaken to obtain the reliable data about the degradation of various materials caused by hydrogen.
Table 2 lists the tensile strength and reduction of area.
Material Specimen type Tensile strength, σB (MPa) Reduction of area, φ (%) FCD400 Non-charged 399 23.2 H-charged 386 15.5 FCD450 Non-charged 475 14.9 H-charged 448 8.3 FCD700 Non-charged 740 8.7 H-charged 640 3.6 Fig. 2 Nominal stress-strain curves.
Online since: April 2015
Authors: Shuo Zhang, Bing Su
Data in Fig. 3 indicate that the wear of GCr15 disc increases with time, but the increasing rate decreases gradually with time.
These results shows the grease plays a good role on sliding friction reduction.
The wear is relatively minor under the conditions of grease lubrication, and the sliding friction coefficient of the friction pair varies between 0.3 and 0.6 and fluctuates slightly with time, which shows the grease played a good role on sliding friction reduction.
Online since: August 2013
Authors: Shu Yuan Li, Jian Hua Tao, Lei Yu
The information management system is to manage the rainfall, water quality, water quantity, social economy, ET information and so on to timely provide the status and variation tendency of water resources in the basin, and provide basic data for application system and provide data support of water resources and water environment for water manager to meet the demand of information sharing.
In case of long series of hydrologic data, 90% of hydrological guarantee rate is adopted as design flow; if the design flow is 0, the average velocity in the driest month for recent 10 years is adopted; in case of no hydrologic data, but upstream and downstream data, the interpolation method is adopted; in case of no upstream and downstream data, 0.1m3/s is adopted for small tributaries of Weihe River with low velocity and 0.25-0.5 times of the velocity of main streams is adopted for small tributaries of Zhanghe River with large velocity according to the situation of main streams.
After calculation, about 75% of the design flow of Yuancun Station in dry season is 15m3/s and according to the typical year corresponding to the design flow of Yuancun Station, the data is approaching the actual data in 1979, so, the average actual flow data of Yuancun Station in non-flood season in 1979 is analyzed and the design flow of main tributary upstream is obtained where Anyang River accounts for 35%, Qihe River 12%, Xinhe River 10% and other tributaries than 10%.
Observed data of velocity and flow of Hehe, Qimen, Anyang, Chuwang, Linqing and Sinusi in 1975 and 1985 was adopted to build the flow-velocity relation curve of each station, as shown in Table 1.
Based on the pollution discharge data of each function zone in the comprehensive planning of water resource in the Haihe basin and the water quality and water quantity tracking and monitoring of Weihe River and Wei Basin by Zhangweinan Basin Authority, according to multi-group monitoring data the comprehensive attenuation coefficient of chemical oxygen consumption (COD) obtained is between 0.039 and 0.498 and that of ammonia nitrogen is between 0.064 and 0.512.
Online since: February 2013
Authors: Tao Yue, Fan Wang, Bin Jie Han, Peng Lai Zuo, Fan Zhang
The reduction effects on elemental mercury emission by different control devices are shown in Fig. 1
Fig.1 Reduction effects of different control technologies on elemental mercury emission (5)Analysis of mercury emissions of the different coal byproducts Mercury proportions in coal by-products of total mercury are shown in Fig.2.
Sample name Hg (ng/g) Cement plant 1 Iron ore powder 11.9859 Limestone 30.0545 Silicon waste rock 7.0601 Fly ash 369.7598 Precipitator ash 6.0901 Cement plant 2 Limestone 11.0420 Silicon waste rock 6.5373 Limestone slag 27.8678 Sulfuric acid residue 166.1396 Cement plant 3 Iron ore powder 9.5362 Limestone 12.1612 Silicon waste rock 11.7516 Fly ash 664.1089 Cement plant 4 Ore slag 10.5384 Steel slag 7.5743 Bauxite 47.0390 Rock 797.8275 Limestone 6.7505 Coke powder 169.1279 Fig.4 Mercury concentration test results of the cement kiln flue gas Through the analysis of the data the following conclusions can be obtained: (1)For the limestone one of cement raw materials, mercury content was only 5.4% to 7.5% of the average mercury content of coal.
[5] He S, Zhou J S, Zhu Y Q, et al., Mercury Oxidation over a Vanadia-based Selective Catalytic Reduction Catalyst[J].
[10] Wo J J, Zhang M, Cheng X Y, et al., Hg2+ reduction and re-emission from simulated wet flue gas desulfurization liquors[J].
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