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Online since: October 2011
Authors: César Bedoya, Jorge Orondo
To guarantee the reliability of this tool, all the credits used have indicators that come from official data bases or at least professional recognize.
For the credits in which the commercial information was needed to be used, it is guaranteed its reliability by comparing data from enough reliable commercial references and obtaining the mean value.
If there are no data available it will be assumed as the worst option and will be given the following worst punctuation.
The comparative evaluation method does not give results from the reduction of the environmental impact, although it helps to know easily and quickly the best alternative for each situation, and gives improvement ideas to help to achieve the ideal hypothesis.
Online since: November 2012
Authors: Hui Xu Dong, Na Li, Mei Chen Fan, Yu Wen, Jia Qi Dai
Boiling seawater enters the evaporation chamber through compression release valve .While the reduction of pressure in the evaporation chamber leads to lessen boiling point of seawater.
The experimental data analysis 4.1 The measurement of experiment data (1) Freshwater: Gather fresh water in the tank at regular intervals, measure it in graduated cylinder and take record of the average data
Online since: October 2011
Authors: Jen Jung Hsu, Ming Chang Wu
Such data will be useful in understanding the influence of the controlled parameters and preservation period for the antioxidant capacity of two test vegetables.
The data was shown as Fig. 3.
The data were less than the fresh harvest and slightly larger than 16.6 ~ 24.4% reduction, but it still had good preservation effects.
Online since: September 2013
Authors: Xiao Xing Chen, Wen Yu Zhao, Jun Yi Yu, Bei Kong Ma, Guang Wen Yang
Some research data indicated that the EM bacteria have certain effect on removal of nitrogen and phosphorus in sewage [8].
Fig.1 Schematic diagram of the artificial lake Table.1 Monitoring results of water quality in the artificial lake before repaired* Item COD (mg/L) T-N (mg/L) T-P (mg/L) Turbidity (NTU) Duckweed coverage Range 53.4~85.9 11.35~13.18 3.02~3.58 50.2~67.8 90% * Datas in the table have been measured before the experiment in October 2011.
Table.2 Exogenous contamination in the artificial lake** Item COD (mg/L) T-N (mg/L) T-P (mg/L) Flow (m3/d) Range 211.3~337.8 68.03~85.12 9.21~14.33 4.08~6.67 ** Datas in the table have been measured for multiple samples betweeen October 2011 to June 2012.
Due to inability of reduction of P by conventional wastewater treatment systems, an integrated restoration technique was constructed to purify eutrophic water body.
Integrated restoration technique can also provide important research data for the theoretical research of similar eutrophic artificial lake.
Online since: January 2014
Authors: Mei Yu, Chun Juan Fu, Rong Bao Ma, Rui Yang Wang, Jian Hua Liu
After the samples were immersed in the NaCl 3.5% for 1 hour, a Tafel-type fit of the data was performed to estimate the corrosion rate.
Fig.2, Polarization curves for different aged samples Table 4, Electrochemical parameters for different aged samples Sample No. jcorr/V icorr/( A·cm-2) AT1 -0.78 5.012×10-6 AT2 -0.76 3.981×10-6 AT3 -0.8 10-5 AT4 -0.77 6.310×10-6 Rpo Rt Rs Cdl Cm Fig.3, Nyquist impedance diagram for different aged samples and the proposed equivalent circuit Table 5, Electrochemical impedance data of electrical elements proposed in the equivalent circuit Sample No.
The data for the electrical elements of different aged samples are listed in Table 5.
Generally speaking, decrease in the Cdl value shows the increase thickness of the film, conversely, an increase in the Cdl value indicates the reduction of the film thickness.
Online since: September 2013
Authors: Qiang Wang, Qi Zhong, Gang Zhou, Yang Zhang, Kai Yang
The SO2 emission has an observable reduction and even the SO2 emission of some sources is lower than 50ppm.
The measurement data of all the instruments were recorded once in five minutes and ten group data were obtained for comparison.
According to the data shown in Fig.1~Fig.5, the performance of three analyzers is much better than the reference technical indicators given in Table.4.
Online since: March 2014
Authors: Sergej Diel, Otto Huber
The supporting cores enhance the local buckling strength of thin-walled hat-shaped section members made from high-strength steel, thus enabling weight reduction of the frame.
The data are normalized by the corresponding yield strengths σyT and σyC and fit well to exponential regression lines.
Fig. 1: Fatigue curves in terms of cycles to failure for 1 Hz and 20 Hz test frequency: a) Tensile loading (R = 0.1); b) Compressive loading (R = 10) (data from [11]).
Fig. 2: Time to failure for cyclic tests at 1 Hz and 20 Hz test frequency and creep tests: a) Tensile loading; b) Compressive loading (data from [11]).
Online since: December 2014
Authors: Okuwobi Idowu Paul, Yong Hua Lu
However, these applications were very expensive until image compression algorithms were devised .This is due to the tremendous amount of data required to directly represent digital images which results in high storage and transmission costs.
These negligibly small coefficients are then discarded while the original data could still be recovered accurately[1-4].
This error reduction is achieved by coding the information prior to transmission in such a way that it would be possible to detect and correct errors at the receiver end.
Wakin, “An introduction to compressive sampling [a sensing/ sampling paradigm that goes against the common knowledge in data acquisition],” IEEE Signal Processing Magazine, vol. 25, pp. 21 – 30, Mar. 2008
Online since: January 2012
Authors: Huai Ping Feng, Chao Liang Ye, Yao Jun Liu
Table 2 The data statistics of heavy DPT (N/10cm) piles number Maximum value Minimium value average Standard deviation Design value 250# 62 66 22 44.7 12.07 20 409# 75 54 20 36.5 9.83 20 529# 85 79 25 39.4 15.67 20 609# 46 83 23 40.5 12.4 20 642# 52 53 20 34.4 12.1 20 933# 84 89 21 40.7 19.23 20 The density of piles Table 2 shows the data of piles by using of heavy DPT.
The experiment show that this method is more appropriate, and the data of discrete small, short time.
Uplift behavior around piles During construction of gravel pile in the pile head, due to the reduction of lateral pressure and vertical pressure from the cover, soil will uplift.
Online since: April 2013
Authors: Bernd-Arno Behrens, Richard Krimm, Thomas Nitschke
Currently, this effect will be compensated with help of: • Mechanical energy storages (electrically coupled flywheel) • Electrical energy storages (array of capacitors) [9, 10, 11] Both types of energy storage systems allow buffering of electric energy and a thus reduction of AC power peaks in the electricity grid.
The geometric data of the virtually designed eccentric drive based on real data from an existing eccentric press.
The obtained data are the basis for the implementation and optimization of the novel drive concept.
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