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Online since: August 2006
Authors: Y. Nishihata, Isao Tan, Mari Uenishi, Jun'ichiro Mizuki, Hirohisa Tanaka, Masashi Taniguchi
By the self-regenerative
function, the intelligent catalyst can suppress the
grain growth of the precious metals, even in a high
temperature exhaust gas, and it maintains high
activity for a long period of time (Figs. 2, 3)
[3].
K-edge Ageing treatment Shell (Bond) Weight (Wshell) Coordination number Interatomic distance (nm) Debye-Waller factor (x10 -4 nm 2) Discrepancy factor (%) 800-O Pd-O 1 6* 0.2038(5) 0.58(3) 3.9 Pd-Fe/Pd-Pd 0.44 6*/6* 0.2683(3) 0.64(4) 800-OR Pd-Pd 0.20 12* 0.2743(1) 0.64† 8.6 Pd 800-ORO Pd-O 1 6* 0.2038(5) 0.65(3) 8.9 Fig.5.
Since the sum of two shell-weights does not amount to 1, shortage of coordination number is considered to be the cause.
As the result, grain growth of precious metal is suppressed in a very small particle diameter.
K-edge Ageing treatment Shell (Bond) Weight (Wshell) Coordination number Interatomic distance (nm) Debye-Waller factor (x10 -4 nm 2) Discrepancy factor (%) 800-O Pd-O 1 6* 0.2038(5) 0.58(3) 3.9 Pd-Fe/Pd-Pd 0.44 6*/6* 0.2683(3) 0.64(4) 800-OR Pd-Pd 0.20 12* 0.2743(1) 0.64† 8.6 Pd 800-ORO Pd-O 1 6* 0.2038(5) 0.65(3) 8.9 Fig.5.
Since the sum of two shell-weights does not amount to 1, shortage of coordination number is considered to be the cause.
As the result, grain growth of precious metal is suppressed in a very small particle diameter.
Online since: June 2022
Authors: Gerald Hoffmann, Cornelia Sennewald, Andreas Nocke, Chokri Cherif, Duy M.P. Vo, Hung Le Xuan
The fine-grained cementitious matrix for the tested TRC specimen was specifically designed for high-strength strain-hardening cement-based composite (SHCC), being made with short HDPE fibers (DSM, Netherlands) with a diameter of 0.02 mm and a fiber length of 6 mm.
Table 1: Mixture composition of the high strength, fine-grained cementitious matrix Components kg/m³ CEM I 52.5R-SR3/NA 1460 Silica Fume 292 Quartz Sand (0.06-0.2 mm) 145 Super Plasticizer 45 Water 315 HDPE Fibres (Dyneema®) 10 Electromechanical characterization.
Acknowledgment The authors express their gratitude to the Deutsche Forschungsgemeinschaft (DFG – German Research Foundation) for the financial support provided in the framework of the Research Training Group GRK 2250 “Mineral-bonded composites for enhanced structural impact safety”, project number 287321140.
Nocke, Influence of thickness ratio and integrated weft yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber-reinforced plastics, Composite Structures 215 (2019) 493–501
Table 1: Mixture composition of the high strength, fine-grained cementitious matrix Components kg/m³ CEM I 52.5R-SR3/NA 1460 Silica Fume 292 Quartz Sand (0.06-0.2 mm) 145 Super Plasticizer 45 Water 315 HDPE Fibres (Dyneema®) 10 Electromechanical characterization.
Acknowledgment The authors express their gratitude to the Deutsche Forschungsgemeinschaft (DFG – German Research Foundation) for the financial support provided in the framework of the Research Training Group GRK 2250 “Mineral-bonded composites for enhanced structural impact safety”, project number 287321140.
Nocke, Influence of thickness ratio and integrated weft yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber-reinforced plastics, Composite Structures 215 (2019) 493–501
Online since: November 2013
Authors: Jia Hua Dong, Da He Jiang
Introduction
In the coal mine industry, the mining waste ores and the ore tailing of mineral separation are abound, of which the duns are largest in number.
Its number is large and most of them are piled around the ore fields and thus cover a large area of farming land.
In average every hectare of cultivated land receives an increase of grain output 675 kilograms.
Taking Teng-nan Coal Mine as an example, as a result of the adoption of the pattern of farming, cultivation of animals and processing of products, the yielded cereal crop can be used as the raw materials in the processing plants to produce chums and feedstuff for ducks; and the food residue of fish and the feces of ducks are left on the bottom of the pounds and can be used as organic fertilizers of the platform fields after being dug up to increase the grain output.
Its number is large and most of them are piled around the ore fields and thus cover a large area of farming land.
In average every hectare of cultivated land receives an increase of grain output 675 kilograms.
Taking Teng-nan Coal Mine as an example, as a result of the adoption of the pattern of farming, cultivation of animals and processing of products, the yielded cereal crop can be used as the raw materials in the processing plants to produce chums and feedstuff for ducks; and the food residue of fish and the feces of ducks are left on the bottom of the pounds and can be used as organic fertilizers of the platform fields after being dug up to increase the grain output.
Online since: April 2022
Authors: Manal A. Saleh, Mohammed K. Jawad
As such, nanoscience has demonstrated a unique enabling technologies for a number of applications such as solar cells, photodetectors, energy storage devices [3].
The PLD approach is well-known for delivering well-defined NCs along with a significant number of nanostructures [10]. 2.
The attained outcomes suggest that the PPy/NiO exhibited cluster shaped morphology which looks like layer of grain (C2 and C4).
The grain layer is well-distributed and coated onto the f-MWCNT surface.
The PLD approach is well-known for delivering well-defined NCs along with a significant number of nanostructures [10]. 2.
The attained outcomes suggest that the PPy/NiO exhibited cluster shaped morphology which looks like layer of grain (C2 and C4).
The grain layer is well-distributed and coated onto the f-MWCNT surface.
Online since: September 2013
Authors: P.K. Singh, V. Bhasin, R.K. Singh, K.K. Vaze
Microstructures of the oxalic acid etch test given in figure 9, shows carbide precipitations along grain boundaries in aged samples for base and weld HAZ.
Results of the tests on base and weld HAZ after accelerated thermal ageing, indicates that carbide precipitation along the grain boundaries is also within acceptable limit.
During the tests crack growth in depth and surface (circumferential) direction with respect to number of cycles was recorded.
Maximum crack depth and number of cycles for a given stress ratio (R) of 0.1 are shown in figures 11 to 13.
Results of the tests on base and weld HAZ after accelerated thermal ageing, indicates that carbide precipitation along the grain boundaries is also within acceptable limit.
During the tests crack growth in depth and surface (circumferential) direction with respect to number of cycles was recorded.
Maximum crack depth and number of cycles for a given stress ratio (R) of 0.1 are shown in figures 11 to 13.
Online since: June 2014
Authors: Ling Li Guo, Jin Man Wang, Zhong Ke Bai, Yin Gui Cao, Rui Xuan Yang
Which was similar to the inverse distance interpolation method, may be expressed as:
z(x0) was the value of the unknown sample, z(xi) was value of the sample which was known around the unknown sample point, was the weight for known sample points right to unknown sample, n was the number of sample points were known.
Tab. 2 Descriptive statistics characteristics of different soil granule composition layer (cm) soil granules grade Number of samples(N) mean median Standard deviation min max The coefficient of variation(cv) Method K-S test values (p) Distribution Type 0-20 clay 78 13.27 12.61 3.18 7.91 20.51 0.24 0.232 Normal silt 78 58.41 57.87 7.16 43.41 75.19 0.12 0.826 Normal sand 78 28.33 27.26 8.11 10.55 46.33 0.29 0.726 Normal 20-40 clay 78 14.26 13.83 3.99 3.42 22.04 0.28 0.286 Normal silt 78 58.35 58.18 9.85 13.89 79.46 0.17 0.355 Normal sand 78 27.40 25.00 11.09 6.03 82.70 0.40 0.435 Normal The table 2 showed that the soil particle composition characteristics was similar in every levels, all with highest average content of silt, accounted for about 60% of the grain composition content.
Spatial Distribution of Soil Nutrient and Relationship Between Soil Nutrient and Soil Granule Compo sition for Grain Crop Region[J], Scientia Agricultura Sinica, 2002 ,35 (3) :297 – 302.
Tab. 2 Descriptive statistics characteristics of different soil granule composition layer (cm) soil granules grade Number of samples(N) mean median Standard deviation min max The coefficient of variation(cv) Method K-S test values (p) Distribution Type 0-20 clay 78 13.27 12.61 3.18 7.91 20.51 0.24 0.232 Normal silt 78 58.41 57.87 7.16 43.41 75.19 0.12 0.826 Normal sand 78 28.33 27.26 8.11 10.55 46.33 0.29 0.726 Normal 20-40 clay 78 14.26 13.83 3.99 3.42 22.04 0.28 0.286 Normal silt 78 58.35 58.18 9.85 13.89 79.46 0.17 0.355 Normal sand 78 27.40 25.00 11.09 6.03 82.70 0.40 0.435 Normal The table 2 showed that the soil particle composition characteristics was similar in every levels, all with highest average content of silt, accounted for about 60% of the grain composition content.
Spatial Distribution of Soil Nutrient and Relationship Between Soil Nutrient and Soil Granule Compo sition for Grain Crop Region[J], Scientia Agricultura Sinica, 2002 ,35 (3) :297 – 302.
Online since: January 2021
Authors: Hideyuki Murakami, Masayuki Shimojo, Hiromichi Matsuda, Yoko Yamabe-Mitarai
∆Smix = -Ri=1nxilnxi (4)
Where xi is a mole fraction of the component i, and n is the number of constituent elements.
The bright contrast phase was observed in the interdendritic area in HEAs or grain boundaries in MEAs.
The small amount of the dark contrast particles was also observed in the interdendritic area or grain boundaries.
If the number of dislocations introduced during phase transformation are saturated, the irrecoverable strain is finally disappeared.
The bright contrast phase was observed in the interdendritic area in HEAs or grain boundaries in MEAs.
The small amount of the dark contrast particles was also observed in the interdendritic area or grain boundaries.
If the number of dislocations introduced during phase transformation are saturated, the irrecoverable strain is finally disappeared.
Online since: March 2009
Authors: Luisen E. Herranz, M.T. del Barrio
A small fraction of them are volatile and can migrate under the effect of concentration gradients to
the grain boundaries of the fuel pellet.
Before and after the FGR, it is possible to define the mol number and fraction of gases present at each axial node by applying the ideal gas law at the respective rod pressure.
So, the number of gas moles at node j before FGR and Po rod pressure is given by: b o j j P V n R T = (1) Similarly, the amount of gases in each axial node after pressure equalization (P') is decribed by: ' j j P' V n R T = (2) Estimate of the convective mole transport from the FGR node to upward and downward adjacent nodes proceeds in a stepwise fashion.
Before and after the FGR, it is possible to define the mol number and fraction of gases present at each axial node by applying the ideal gas law at the respective rod pressure.
So, the number of gas moles at node j before FGR and Po rod pressure is given by: b o j j P V n R T = (1) Similarly, the amount of gases in each axial node after pressure equalization (P') is decribed by: ' j j P' V n R T = (2) Estimate of the convective mole transport from the FGR node to upward and downward adjacent nodes proceeds in a stepwise fashion.
Online since: January 2003
Authors: Tamás Réti, Károly Böröczky
The component number of a FC system (i.e. the number of cells with different
sides) is defined by � �= 1)psgn( n .
From the previous considerations it follows that in a SFC system, the total number E of edges is related to the total number N of cells, the number V of vertices, the average valency [r] and the mean number of sides per cell �n� V]r[NnnNE2 n n� ===
This means that the total number J of possible configuration sets is not less than the component number of the FC system.
(16) The edge-coordination number mA is the mean number of edges of the edge neighbours of A.
Weaire: Some Remarks on the Arrangement of Grains in a Polycrystal, Metallography, Vol.7 (1984) p. 157-160
From the previous considerations it follows that in a SFC system, the total number E of edges is related to the total number N of cells, the number V of vertices, the average valency [r] and the mean number of sides per cell �n� V]r[NnnNE2 n n� ===
This means that the total number J of possible configuration sets is not less than the component number of the FC system.
(16) The edge-coordination number mA is the mean number of edges of the edge neighbours of A.
Weaire: Some Remarks on the Arrangement of Grains in a Polycrystal, Metallography, Vol.7 (1984) p. 157-160
Online since: June 2009
Authors: Siddhartha Shrivastava, Debabrata Dash
The
number of functional foodstuff delivery systems is expected to increase sharply over the next few
years.
The word "Kam" means deep purple, and the rice variety is known for its purple stem, leaves and grains.
Using nanotechnology, the scientists changed the colour of the leaves and stems of Khao Kam from purple to green and the grain becomes whitish.
This bar code is essentially a sticker having a number of black and white bars with certain digits written at the bottom.
Lack of finances also limits the number of inspectors that can be employed at these critical control points.
The word "Kam" means deep purple, and the rice variety is known for its purple stem, leaves and grains.
Using nanotechnology, the scientists changed the colour of the leaves and stems of Khao Kam from purple to green and the grain becomes whitish.
This bar code is essentially a sticker having a number of black and white bars with certain digits written at the bottom.
Lack of finances also limits the number of inspectors that can be employed at these critical control points.