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Online since: July 2014
Authors: Muthe Srinivasa Rao, R.B. Anand
Experiments are carried out in two phases on a DICI engine test rig which includes CI engine, electric loading device, exhaust gas analysers, and a data-acquisition system.
They reported that slight improvement in brake thermal efficiency accompanied by the higher reduction in NOx emission.
The test rig is constructed by using an air cooled, naturally aspirated, four stroke single cylinder Direct Injection Compression Ignition (DICI) engine, alternator, loading device, exhaust gas analyzing unit (Di-gas analyzer and smoke meter), fuel metering unit and a data acquisition system.
The data acquisition system comprises a pressure sensor to measure the cylinder pressure, and personal computer with data processing software.
The intrinsic oxygen contained by the Pongamia and Jatropha biodiesel was responsible for the reduction in HC emission.
Online since: July 2020
Authors: Darminto Darminto, Bambang Triono, Putu Eka Dharma Putra, Resky Irfanita, Malik Anjelh Baqiya
A small amount of oxygen reduction appeared in both T’-PCCO samples after reduction annealing, namely 0.012 for x = 0 and 0.013 for x = 0.10.
This may signify two possible indications, which are: (i) a decreasing number of crystalline defect or defect recovery induced by the reduction annealing, and (ii) an increase of itinerant electrons due to reduction annealing.
Note: the quality of fitting results from the XRD data during the Rietveld analysis is summarized in several parameters such as: c2: the goodness of fitting results; Rp: the profile factor; Rwp: the weighted profile factor; RB: Bragg Factor, and RF: the crystallographic factor.
In the case of reduction annealing effect, the changes in electron density become more complex.
In general, all samples dominantly exhibit paramagnetic behavior even after reduction annealing.
Online since: October 2010
Authors: Juan Wang, Xin Han
The scales’ dimension and shape are the key factors influencing the drag reduction function of the low-resistance scarfskins [4].
The test apparatuses are as follows: (i) Drag balance: drag sensor, the measuring range is 200 N and the load resolution is 0.1 N; (ii) TEAC-SA55 bridge-type amplifier and NI-PCI4472 data-sampling plate with the highest sampling frequency of 200 kHz; (iii) IBM computer.
Fig.8 shows the drag reduction efficiency curve of the biomimetic shark-skin coating.
It can be seen from Fig.8 that the highest drag reduction efficiency of the biomimetic coating reaches 8.25% while the average drag reduction efficiency is 6.91% in the experimental conditions.
Drag reduction mechanisms derived from shark skin.
Online since: October 2014
Authors: You Min Xu, Ya Dong Bi, Xiao Hong Yin
Typically, the data was collected from 10 o to 80 o (2è).
According to the data in the table, the difference of surface area between CeO2 and HZSM-5 supports is large.
Before reduction, the Ni precursor is mainly in the form of bulk NiO.
A single broad reduction peak was observed for Ni/CeO2 with a maximum at 450 oC, while the reduction peak of Ni/HZSM-5 was located at 500 oC.
According to CO-TPR test, the reduction of catalyst at 500 oC ensures NiO species being completely reduced.
Online since: September 2018
Authors: V. Saravanan, S. Nallusamy
The existing manufacturing data were collected and interpret the information’s for identifying the gaps for productivity improvement.
After the proper literature review, observation and existing data collection is needed.
The complete shop floor data collection will be tested before it will be used for data analysis.
The problems in the work process can be identified based on the data collection and their analysis.
Current State VSM Model: The data from the shop floor and the process flow line has been analyzed.
Online since: May 2014
Authors: Yuan Huang, Xiu Tian Yan, Jing Yao Li
To minimize the revision of old scheduling scheme in DRCJDSP-HW, a hybrid dynamic scheduling algorithm was proposed based on the chromosome reduction mechanism and the scheduling optimization of local job in stages.
(4) l Searched the appropriate position to be inserted of gene in multidimensional local chromosome when chromosome reduction according to Eq.(5) and Fig. 3
(5) Fig. 3 Gene Reduction Search l Since the ant colony optimization mechanism may allocate the same time window for different task, the paper introduced a reverse gene insert mechanism for which realized chromosome reduction according to the reverse sequence of local chromosome to guarantee that the earlier scheduling gene had the preferential right of time window.
Among them, the operation patch setup time, standard processing time, loading/unloading time of one operation were expressed separately with the data of “(A)B(C)” in table 1, the empty mean the operation couldn’t been processed on that machine.
Summary This paper constructed DRCJSP-HW dynamic scheduling model and introduced a DRCJSP-HW three-tier dynamic scheduling system based on local time window scheduling which including dynamic disturbance analysis, dynamic disturbance evaluation and dynamic scheduling algorithm: the dynamic disturbance analysis process established data basic for follow-up dynamic scheduling; the dynamic disturbance evaluation process utilized competitive bidding technical of time window to evaluate the influence of disturbance; with the HGAACO dynamic scheduling algorithm based on reverse reduction mechanism of chromosome and scheduling optimization by stage of local task, the minimum revision dynamic scheduling scheme was obtained in accordance with the combinatorial optimization of local task and time window void.
Online since: June 2014
Authors: Xi Lei Huang, Mao Xiang Yi, Lin Wang, Hua Guo Liang
Literature [3] proposes a data compressionscheme based on mixed compatible data blocks.
Howeverbecause of the different range between test data blocks, it hasto be decompressed separately for each core, significantly increasing the cost.
But it needs a signal-control device,which not only increases hardware overhead, but also needs additional memory to control the test data of each core to scan in.
By test set sharing, it can effectively reduce the amount of test data and test application time, so as to achieve the purpose of reducing test cost.
[8] Chunlei Mei, Maoxiang Yiand Zhifei Shen: Decreasing SoC Test Power Dissipation and Test Data Volume Based on Pattern Recombination, International Joint Conference of IEEE.(2011)
Online since: June 2014
Authors: Masrukan Masrukan, Muhammad Husna Al Hasa, Arief Sasongko Adhi
After the homogenization process, deformation process was performed on AlFeNiMg alloy by gradual reduction.
This condition can lead to the increase in mechanical properties, especially the strength or hardness of metal through crystal orientation. 20 μm a 20 μm b 20 μm c 20 μm d Fig. 2 Micrographs of AlFeNiMg alloy, (a) deformation at 30% reduction, (b) deformation at 53% reduction, (c) deformation at 65% reduction,(d) deformation at 88% reduction.
Based on data from reference [7 ], it is shown that the peak of FeAl3 phase is located at 2q angle at 22o, 24o, 25o, 26o, 27o, 40o, 42o, 43o, 45o, 47o, 50o, 64o, 67o, 69o, 73o, 75o, 76o, 78o, 82o, 86o, 90o and 93o.
After deformation the hardness values are 113 HV at 30% reduction, 135 HV at 53% reduction, 153 HV at 65% reduction and 165 HV at 88 % reduction.
[7] Anonymous, PDF Card, International Center For data Diffraction, 2008
Online since: May 2012
Authors: Zhi Gang Huang, Jiao Ling Xie, Wen Ping Wu
Calculation of the Results Firstly,for logistics population model: We use the population data[10]of 1963-2010 to calibrate the parameters in the model.
Secondly,for logistics energy consumption model: We use energy consumption data[11] from 1963-2010 to calibrate the model parameters.
Next, for GDP Growth Equation: We use the GDP data[10]from 1963-2010 to calculate and in.We utilize the relation thatand to calculate that,.
Firstly,third party verification is needed to ensure the quality of carbon emission data.In the environment of underdeveloped credit system,it is crucial to form a free market of third party verification organizations.
[11]Information on http://data.worldbank.org.cn/indicator
Online since: November 2012
Authors: Juan Wang, Wei Feng Bai, Jian Wei Zhang, Xing Jie Kuang
Additionally, the calculating results are compared with experimental data.
Current Formulae for Eccentric Bearing Capacity of CFST Short Columns The formulae for eccentric bearing capacity of concrete-filled circular steel tube short columns (N) are mainly included as follows[1]: N≤φ1φcN0 (1) Where, φ1 is the reduction factor of bearing capacity considering the influence of slenderness ratio; φc is the reduction factor of bearing capacity considering the eccentricity effects; N0 is the design value of bearing capacity of CFST short column, N0=fc Ac(1++θ), fc is the design value of axial compressive strength of concrete, Ac is the cross-sectional area of concrete inside the steel pipe, θ is the steel tube confinement index, θ= fs As/ (fc Ac), fs is the design value of axial compressive strength or tensile strength of steel pipe, As
In Eq. (1), the reduction factors of bearing capacity considering the influence of slenderness ratio and eccentricity were proposed by regression analysis based on lots of experimental data according to the selected parameters.
N≤γ φc(As fs +K1 Ac fc) (2) Where, φc is the reduction factor of bearing capacity of eccentric bearing capacity of CFST; γ is the correction value of φc , γ=1.124-2t/D-0.0003 fs; K1 is the added coefficient of strength of core concrete; The eccentricity amplifier method has been adopted in equation (2).
The comparison with experimental data showed that the optimal calculating formulae performed high accuracy and can be easily used for engineering design.
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