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Online since: November 2014
Authors: Abdullah Yassin, Chong Yaw Teo
Hence, reduction in tool wear is essential for less expenditure with the knowledge of optimum cutting conditions of MQL.
Results showed that MQL with palm oil exhibits best cooling efficiency at 5 bar pressure and nozzle angle of 20o with reduction of 35% in tool wear and 23% in cutting temperature at higher cutting speeds.
Usage of vegetable oils [4] is then being brought out into attention of the researchers, which results in reduction of health hazard factor [5].
The ranges of cutting speeds were chosen based on the data given by cutting tool manufacturer.
Impact of change in MQL pressure is more noticeable at higher cutting speeds, especially at 150 m/min with approximately reduction of 10% in cutting temperature using 5 bar if compared to that of 1 bar.
Online since: April 2013
Authors: Pei Ji Shi, Bei Bei Jiao
According to the formula (1), (3)and the data above, estimated that the energy consumption is 5.41 PJ in 2010 in GanSu province.
Choose the star-rated hotel statistical data of GanSu province 2001-2010 which from the yearbook of China tourism statistics as estimated sample to estimate the energy consumption of star hotel.
The data shows that the tourism in GanSu province belongs to the low energy consumption and low CO2 emission industry
The data shows that tourism transportation’s energy consumption and CO2 emission occupies the leading position
In the future, it is necessary to get more and detailed data and in-depth study for tourism detailed energy consumption and carbon dioxide emission status.
Online since: June 2014
Authors: Pan Miao
Current Development Situation and Path Choice of Low-carbon Economy in Shandong Province Pan Miao Shandong Women’s University, Jinan 250300, China Email:miaopan96@163.com Keywords: low-carbon; energy-saving emission reduction; low-carbon technology Abstract: Taking the path of sustainable development in Shandong Province, it is inevitable to make “low carbon” transformation and structure adjustment of economy.
The achievements of energy-saving emission reduction are remarkable.
From statistical data of green low-carbon economic development and promotion center in Shandong, enterprise that meet the low-carbon standards was very few overall, although a lot of low-carbon environmental protection enterprises emerged, and development and application of low-carbon technologies are uneven.
Shandong finance establishes matching funds and carbon funds to support the research and development of energy conservation and emissions reduction technology in the province.
At the same time of advocating carbon dioxide emission reduction, the carbon dioxide discharged into the atmosphere will be fixed down in the form of biomass through afforestation which is the right direction to control the greenhouse gases and cope with climate change.
Online since: October 2010
Authors: Hui Ping Zheng
Stability margins for different motion states in rotor systems are defined based on trajectory-based stabilitypreserving dimensional-reduction (TSPDR) in a quantitative stability analysis method for rotor systems.
Experiment results in a rotor experiment rig show that regular pattern of stability margin of quasi-periodic motion calculated from measured data accords with the rule of above method.
When bifurcation diagram is calculated based on measured data by means of DASP software, point of FFT is 2048 and spectral line 2000.
Fig. 5 Stability margin of quasi-periodic motion for m=0 Fig. 6 Stablilty margin of ouasi-periodic motion foe m=0.820 Results Experiment results in a rotor experiment rig show that regular pattern of stability margin of quasiperiodic motion calculated from measured data accords with the rule of the quantitative stability analysis method.
At the same time, measured signal contains various noisy signals, and then a lot of work how to reduce noisy signals in measured data should be done in the future.
Online since: January 2015
Authors: Fu Liang Jiang, Bo Lei, Guo Hui Li, Zeng Guang Yang, Sheng Yang Feng
Data collecting and processing According to the influence factors of slope stability, we collected 45 groups’ typical examples.
Due to space limitations, this article only lists some of the data in Table 1, the complete data please see literature [8].
Six main factors which influence the stability of arc slope are rock density (), cohesion (), internal friction angle (), slope angle (), slope height () and pore ​​pressure ratio (), safety factor () is determined by the parameters in the table, the data in Table 1 are original data.
The processed data please see Table 2.
Discrete data after normalization processing x1 1 0 2 2 0 1 0 x2 1 0 2 2 0 2 0 x3 1 0 2 2 0 0 0 x43 2 1 2 2 1 0 1 x44 2 1 2 2 1 0 1 x45 2 1 2 2 1 0 1 Attribute reduction and importance calculation After calculation, C1, C3, C4, C6 are the core attributes and C2, C5 are redundant attributes.
Online since: July 2020
Authors: Hasiah Salleh, Chi Chin Yap, Nora'aini Ali, Nik Aziz Nik Ali, Azhar Mohd Sinin, Salmah Mohd Ghazali, Nurul Huda Kamarulzaman, Nurhayati Ishak
The oxidation peaks (DEpa, DIpa) and the reduction peak (DEpc, DIpc) as showed in Figure 2.
Oxidation and reduction peaks can be seen in the potential of 0.92 V and -0.11 V.
O and R are responding to oxidation peak and reduction peak appear.
(a) Whole curve of oxidation and reduction process where O1, O2, O3 and R1 are responding to First oxidation, second oxidation, third oxidation and first reduction (a) First and second oxidation peaks, (c) First reduction, R1 peak appear in this reaction.
Allred, Electronegativity values from thermochemical data, Journal of inorganic and nuclear chemistry, 17 (1961) 215-221
Online since: May 2020
Authors: Vyacheslav A. Dudko, Boris P. Yur'ev, Elena Korelina
The following data was taken as the optimization parameters: y1 – process specific output, [t/(m2h)]; y2, y3 – impact resistance(x) and friction resistance (x1).
To a certain degree it was confirmed by the experiment data when the layer height was increased to 700 mm, the fuel consumption comprised 4.8 % and vacuum under the furnace grate was not enough and equaled only 5 kPa instead of 6 kPа.
Thus according to the sieving data the agglomerate after dropping contained 14.2 % of 5 – 0 mm fines and x and x1values equaled 75 and 5 %, correspondingly, at the sintered layer height of 500 mm.
This is also confirmed by the filtration rate data.
Higher strength of the agglomerate produced at comparative fine ore sintering is evidenced by test data as per GOST 15137-77.
Online since: July 2014
Authors: Xian Kai Bao, Li Juan Liang
Through research, it got the rectangular pipe jacking construction sphere of influence of soil disturbance, and the variation in both horizontal and vertical direction, and compared with the measured data, proved that the numerical simulation has important guiding significance to the pipe jacking construction, will provide a reference for the future construction of similar projects.
Finite-element modeling The influence width value of channel sides is 3 times of the actual channel width, the depth value under the baseboard is 9times of the actual channel height according to the associated engineering data and modeling situation.
Finite-element values anlysis We set 3 monitoring points to collect data along pipe axis vertically on 18m,33m,48m points numbered as ZZ1+0,ZZ2+0,ZZ3+0.And we set 10 auxiliary points horizantally along with the 3 monitoring points and the distances are 4m, 8m, 12m, 16m, 20m.Vertical and horizantal channel displacements distribution curves with reangcle pipe jacking are as figure 2 and 3 Fig 2Vertical settlement curve on point ZZ1+0 with soil excavation Fig 3Vertical settlement curve on point ZZ2+0 with soil excavation Fig 4 Vertical settlement curve on point ZZ3+0with soil excavation Fig 5 Vertical settlement curve on cross section ZZ2+0 with soil excavation The Settling volume reduction can be above 90% when the excavation is in the 3D (D for channel length) range of the monitoring point, and it can be ignored when the excavation is out of the range in Fig 2 and 4.
Meanwhile, the settling volume reduction speed in the monitoring point slow down with excavation section away from the monitoring point.
Conclusions according to the above analysis we can conclude that: 1)The Settling volume reduction can be above 90% when the pipe jacking equipment is in the 3D (D for channel length) range of the monitoring point, and it can be ignored when the excavation is out of the range.
Online since: December 2024
Authors: Amit Sain, Ghanshyam Balotiya, Arun Gaur, Prakash Somani
PCM’s incorporated into concrete pavements have shown significant temperature reduction effects, mitigating thermal stresses.
The reduction of urban heat island effects and energy demand ties into SDG 13, while improved energy efficiency supports SDG 7.
This data serves as the foundation for further calculations of temperature stresses within the scope of this current investigation.
Figure 5 reveals significant reductions in curling stress with increasing percentages of PCM.
Meanwhile, the P12 demonstrated significant thermal stress reduction but lacked balanced mechanical strengths compared to the P8 mix.
Online since: July 2011
Authors: Jian Xin Zhu, Bo Yu
The ASR data decreased from 1.68 to 0.645Ωcm2 with the increase of steam contents, while steam content had little effect on ASR data in SOFC mode.
Reduction of NiO-YSZ into Ni-YSZ was accomplished in situ. at 850˚C.
It can be seen that ASR data decreased from 1.68 to 0.645Ωcm2 with the increase of steam content from 20% to 80% correspondingly in SOEC mode, while steam content had little effect on ASR data in SOFC mode.
Fig.3(a) showed the microstructure of hydrogen electrodes after reduction.
The ASR data decrease from 1.68 to 0.645Ωcm2 with the increase of steam contents.
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