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Online since: November 2017
Authors: Vasyl Lozynskyi
The total number of coal seams and sheds on the mine field area in Namurian stage sediments is 11, but the only 4 layers reache working power – n7Low (Sokalskyi),
n7Top (Zahidnobuhskyi), n8 (Mezhyrichanskyi), and n8Top (Tonkyi).
Gasifiers laying within longwall are impossible because of carrying out a large number of exploratory workings.
Application of fine-grained binding materials in technology of hardening backfill construction.
Gasifiers laying within longwall are impossible because of carrying out a large number of exploratory workings.
Application of fine-grained binding materials in technology of hardening backfill construction.
Online since: March 2021
Authors: Abul Khair, Nilay Kumar Dey, Mohammad Harun-Ur-Rashid, Mohammad Abdul Alim, Newas Mohammad Bahadur, Sultan Mahamud, Syekat Ahmed
Much like the formation C6H6O6-NaCl complex in saline therapy [21] zinc seems to form a hydrate complex Zn-H2O to enter the blood and synthesize a large number of zinc enzymes (little less than four hundred known so far) in the human body.
Sliding this layer diluted NaCl solution advances very first towards the AgNO3 reactant chamber as indicated by the formation of grains of AgCl on its way.
The pores in the cell membrane if are able to function as stopcocks, at least 37.2 trillion continuous superdiffusive events matching the number of cells in a human adult, are in action directing higher potassium to the cell cytoplasm and also ensure higher drug transmission rate.
Sliding this layer diluted NaCl solution advances very first towards the AgNO3 reactant chamber as indicated by the formation of grains of AgCl on its way.
The pores in the cell membrane if are able to function as stopcocks, at least 37.2 trillion continuous superdiffusive events matching the number of cells in a human adult, are in action directing higher potassium to the cell cytoplasm and also ensure higher drug transmission rate.
Online since: July 2022
Authors: Hanae Chabba, Driss Dafir, Meryem Taoufiki, Abderrahim Barroug, Mustapha Boulghallat, Ahmed Jouaiti
Including the number of atoms N, the constant pressure P, and the temperature T controlled by using a Nose Hoover thermostat [21].
The number of bounding variates depends on the compound ratio used.
The parameters for applied RDF tools are: dn is the number of atoms in a spherical shell, dv is a spherical shell volume, r is the distance of the shell from an arbitrary atom selected as the origin and < 𝜌> is average particle density.
In Fig. 8 (a, b), the radial distribution function depicts a series of marks such as the number of peaks, fluctuations, and intensities.
Hence, the enhancement of their properties on the side of grain boundaries is the suggestion for the next investigation.
The number of bounding variates depends on the compound ratio used.
The parameters for applied RDF tools are: dn is the number of atoms in a spherical shell, dv is a spherical shell volume, r is the distance of the shell from an arbitrary atom selected as the origin and < 𝜌> is average particle density.
In Fig. 8 (a, b), the radial distribution function depicts a series of marks such as the number of peaks, fluctuations, and intensities.
Hence, the enhancement of their properties on the side of grain boundaries is the suggestion for the next investigation.
Online since: December 2012
Authors: Xin Xin Ma, Guang Ze Tang, Le Van Khoa Bao
For La1-xSrxMnO3 system, the temperature dependence of the resistivity in ferromagnetic region (T < TC) can be calculated as: rFM = r0 + r2T2 + r4.5T4.5, where r0 represents resistivity due to scattering by impurities, defects grain boundaries [21] and domain walls [22], while the second term r0T2 is assumed to electron – electron scattering [23], and r4.5T4.5 terms is related to electron – magnon scattering [21].
The increase of amount of Mn4+ ions when the Sr doping increase, which is directly proportional to the number of charge carriers, is assigned to be caused this phenomena.
It means the number of free electric charges released from traps in crystalline lattice also increase, which leads to the decrease of Eg.
The increase of amount of Mn4+ ions when the Sr doping increase, which is directly proportional to the number of charge carriers, is assigned to be caused this phenomena.
It means the number of free electric charges released from traps in crystalline lattice also increase, which leads to the decrease of Eg.
Online since: October 2013
Authors: Takayuki Takeshita
Technologies
Capital cost
($/kW)
Electricity generation efficiency
(%, LHV basis)
Coal-fired steam cycle
1,500–1,170
43.0–52.0
Coal integrated gasification combined cycle
1,680–1,300
46.0–54.0
Natural gas combined cycle
630–530
57.0–63.0
Light-water nuclear reactor
2,350–2,100
34.0–37.0
Biomass-fired steam cycle
using wood chips
1,880–1,460
24.9–34.0
using grain residues
2,120–1,660
24.9–34.0
using sugarcane residues
1,880–1,460
22.1–30.2
using black liquor
4,420–3,440
12.4–13.0
using municipal wastes
1,630–1,270
22.7–31.0
Biomass integrated gasification combined cycle
using wood chips
2,390–1,530
37.6–45.0
using sugarcane residues
2,780–1,780
32.4–37.9
using black liquor
2,010–1,280
25.4–28.7
a.
All cost numbers are based on North American manufacture and construction.
If the reference wave electricity generation costs could be reduced further by 70%, wave energy would be deployed in a number of world regions: the western US, Latin America (mainly Chile), Canada, Spain and Portugal, northwestern Africa, and Indonesia, as well as the above-mentioned world regions would become important producers of wave energy.
All cost numbers are based on North American manufacture and construction.
If the reference wave electricity generation costs could be reduced further by 70%, wave energy would be deployed in a number of world regions: the western US, Latin America (mainly Chile), Canada, Spain and Portugal, northwestern Africa, and Indonesia, as well as the above-mentioned world regions would become important producers of wave energy.
Online since: December 2022
Authors: Babu L. Sunith, S. Hemavathy, R. Poornesh
Fig.2: Cutting tool
4.Chemical Composition of materials: Chemical composition equipment used an optical emission spectrometer shown in Fig. (3 and 4)
Fig.3: Baird-DV6 Fig.4: Tested Sample
Table 1: Chemical composition of 6061 aluminium alloy
Content
Percent
Specifications alloy 6061 ASTM B 221M-14
Cu
0.271
0.15-0.40
Mg
0.869
0.8-1.2
Si
0.625
0.40-0.8
Fe
0.214
0.7MAX
Mn
0.130
0.15Max
Ti
0.020
0.15Max
Zn
0.040
0.25Max
Cr
0.178
.04-0.35
Table 2: Chemical composition of 2024 aluminium alloy
Content
Percent
Specifications alloy 2024 ASTM B 221M-14
Cu
4.211
3.80-4.90
Mg
1.361
1.20-1.80
Si
0.122
0.500 MAX
Fe
0.208
0.500MAX
Mn
0.774
0.30-0.90
Ti
0.010
0.150 MAX
Zn
0.050
0.250 MAX
Cr
0.072
0.100MAX
5.Microstructure of Aluminium Alloy: According to Fig.(5&6), which were created using an optical metallurgical microscope (Model:NIKON Epiphot 200), the microstructure is made up of tiny grains of Pearlite and Ferrite.
The Vickers Pyramid Number (HV) or Diamond Pyramid Hardness is the term for the hardness measurement provided by the test (DPH).
The L9 Taguchi orthogonal array was used to design the number of trials with the chosen process parameters of cutting speed, feed rate, and depth of cut.
The Vickers Pyramid Number (HV) or Diamond Pyramid Hardness is the term for the hardness measurement provided by the test (DPH).
The L9 Taguchi orthogonal array was used to design the number of trials with the chosen process parameters of cutting speed, feed rate, and depth of cut.
Online since: December 2022
Authors: Ali Hasan Hadi, Ali Abbar Khleif
A particular sort of dielectric environment was studied in a number of articles.
However, it is noted that the peak current and pulse duration are correlated with a rise in the depth of the damaged layer and the average length, breadth, and number of microcracks.
Additionally, it has been noted that the damaged layer's interior structure has fewer WC grains than the top machined surface.
However, it is noted that the peak current and pulse duration are correlated with a rise in the depth of the damaged layer and the average length, breadth, and number of microcracks.
Additionally, it has been noted that the damaged layer's interior structure has fewer WC grains than the top machined surface.
Online since: July 2022
Authors: Guang Xin Wang, Hai Tao Li, Ming Yi Guo, Hao Yan Cheng, Hao Hu, Zi Han Lin, Xin Yun He
For traditional drying, the obtained powders are seriously agglomerated, and the particles adhere to each other, which can be attributed to the intense attraction between adjacent particles due to the adsorption of a large number of hydroxyl groups on the surface, as reported by Feng et al. [27].
Each ring in the pattern produced by different specific orientations of the crystal plane is well-indexed by the PDF#50-1089 card number of t-ZrO2, consistent with the XRD results.
And a temperature of 430 ℃ is needed to complete the crystallization process of YSZ grains for the traditional synthesis method
Each ring in the pattern produced by different specific orientations of the crystal plane is well-indexed by the PDF#50-1089 card number of t-ZrO2, consistent with the XRD results.
And a temperature of 430 ℃ is needed to complete the crystallization process of YSZ grains for the traditional synthesis method
Online since: June 2012
Authors: Holmer Savastano, J.A. Rodrigues, S.F. Santos, G.H.D. Tonoli, A.E.F.S. Almeida
These reactions are related to a number of factors such as particle size and dispersion, chemical composition, morphology and mineralogy, crystallinity, temperature and presence of activators, among others.
The addition of 5% and 10% w/w of colloidal silica suspension did not affect hydration reactions in this stage. (2) Induction period takes place when a gel layer is deposited on the anhydrous cement grains that form a kind of barrier between the anhydrous and aqueous phases.
It is observed a great number of fibers pulled out on the fracture surface of the fiber-cement with colloidal silica (Fig. 10b).
The addition of 5% and 10% w/w of colloidal silica suspension did not affect hydration reactions in this stage. (2) Induction period takes place when a gel layer is deposited on the anhydrous cement grains that form a kind of barrier between the anhydrous and aqueous phases.
It is observed a great number of fibers pulled out on the fracture surface of the fiber-cement with colloidal silica (Fig. 10b).
Online since: October 2006
Authors: Ryoji Funahashi, Saori Urata, Toshiyuki Mihara, Naoki Nabeshima, Kanako Iwasaki
The
oxide precursor powders were pulverized by ball milling to obtain a grain size smaller
than 10 µm, then mixed in varying ratios with the Ag paste.
Current (A) Voltage (V) Power (W) 0 1 2 3 4 5 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.05 0.1 0.15 Current (A) Voltage (V) Power (W) 0 1 2 3 4 5 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.05 0.1 0.15 Number of heating-cooling cycle RI (mΩ) Pmax (W) 0 10 20 30 40 50 0 0.02 0.04 0.06 0.08 0.1 2 4 6 8 10 12 Number of heating-cooling cycle RI (mΩ) Pmax (W) 0 10 20 30 40 50 0 0.02 0.04 0.06 0.08 0.1 2 4 6 8 10 12 Fig. 13 Charging a lithium-ion battery in the portable phone.
Current (A) Voltage (V) Power (W) 0 1 2 3 4 5 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.05 0.1 0.15 Current (A) Voltage (V) Power (W) 0 1 2 3 4 5 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.05 0.1 0.15 Number of heating-cooling cycle RI (mΩ) Pmax (W) 0 10 20 30 40 50 0 0.02 0.04 0.06 0.08 0.1 2 4 6 8 10 12 Number of heating-cooling cycle RI (mΩ) Pmax (W) 0 10 20 30 40 50 0 0.02 0.04 0.06 0.08 0.1 2 4 6 8 10 12 Fig. 13 Charging a lithium-ion battery in the portable phone.