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Online since: November 2012
Authors: Chang Wu Liu, Ji Wei Deng, Ze Hui Chen
Table 1 Different dimensions da-qing limestone rock sample mechanical parameters
Rock number
D[mm]
L[mm]
L/D
[MPa]
[10-3]
E[GPa]
T05
87.36
62.48
0.715
31.08
1.71
20.1
T12
90.11
86.86
0.964
28.06
5.63
5.1
T08
120.13
62.74
0.522
32.48
6.17
19.1
T09
120.15
62.85
0.523
29.28
3.17
9.7
T11
134.75
86
0.638
28.31
1.3
22.3
According to the test result, drawing a scatter diagram about relation between compressive strength and size, As shown in Figure 1.
Fig.3 Diagram of the different length of rock breaking Theory Model of Size Effect of Rock Material The earliest relationship between the average intensity and scale of rock specimen is raised by J C Jaeger, N G W Cook who performs a large number of experiments, as shown in Eq.1: (1) In the equation: is the volume of rock sample, is constant concerned with rock material.
Probability model of defect distributions for boundary of rock Grain [J].
Fig.3 Diagram of the different length of rock breaking Theory Model of Size Effect of Rock Material The earliest relationship between the average intensity and scale of rock specimen is raised by J C Jaeger, N G W Cook who performs a large number of experiments, as shown in Eq.1: (1) In the equation: is the volume of rock sample, is constant concerned with rock material.
Probability model of defect distributions for boundary of rock Grain [J].
Online since: June 2011
Authors: Hui Yan
The contents and implications of decorative wood doors and windows
Plant decorative patterns .House plant decoration is often the most common window decoration decorative techniques, forms, production of fine, rich in meaning, more meaning auspicious meaning whichever form, such as: peony symbolizes good fortune, Lotus, said Gao Jie, Bristol on behalf of longevity, pomegranate, grapes, said the number of children, together with vines and leaves symbolizes the extension of "future generations" and a better hope.
Birds decorative patterns .Pattern similar to birds animal-shaped Italy, homonym, etc. express the good wishes of the people, multi-grain combination with the plant, such as: fish, combined with the Lotus "surplus year after year," said Crane and the loose combination of longevity, bats, whichever is homonym for "blessing" , whichever is the turtle-shaped Italy on behalf of longevity, not only decorative but also see a strong implication of Chinese culture euphemism, meaning deep features.
Such as: cranes, a symbol of longevity such as pine, a symbol of noble peony, grapes symbolize the number of children, are the lucky people tacit expression.
Birds decorative patterns .Pattern similar to birds animal-shaped Italy, homonym, etc. express the good wishes of the people, multi-grain combination with the plant, such as: fish, combined with the Lotus "surplus year after year," said Crane and the loose combination of longevity, bats, whichever is homonym for "blessing" , whichever is the turtle-shaped Italy on behalf of longevity, not only decorative but also see a strong implication of Chinese culture euphemism, meaning deep features.
Such as: cranes, a symbol of longevity such as pine, a symbol of noble peony, grapes symbolize the number of children, are the lucky people tacit expression.
Online since: March 2014
Authors: Ming Hao Fang, Bao Lin Liu, Ze Lin Wu, Zhao Hui Huang, Yan Gai Liu, You Guo Xu, Xiao Wen Wu
Monoclinic zirconia goes through a number of reversible phase transitions during heating treatment.
Oxide name ZrO2 SiO2 HfO2 Al2O3 Y2O3 Fe2O3 CaO TiO2 Cr2O3 Percentage (wt%) 62.63 33.17 2.72 0.93 0.21 0.12 0.09 0.08 0.05 Table 2 The proportion relations of experimental raw material under the condition of CaO additives Experimental raw material The number of the sample C1 C2 C3 C4 C5 C6 Zircon/mol 0.3 0.3 0.3 0.3 0.3 0.3 Carbon black/mol 0.9 0.9 0.9 0.9 0.9 0.9 CaO/mol 0 0.06 0.12 0.18 0.27 0.3 Figure 1 XRD patterns of zircon powder.
From Fig.3-b we can see that when the amount of CaO addition was 40 mol%, the synthetic products were more dispersed and zirconia products were in shape of sphere with the grain size between 3 to 10 μm.
Oxide name ZrO2 SiO2 HfO2 Al2O3 Y2O3 Fe2O3 CaO TiO2 Cr2O3 Percentage (wt%) 62.63 33.17 2.72 0.93 0.21 0.12 0.09 0.08 0.05 Table 2 The proportion relations of experimental raw material under the condition of CaO additives Experimental raw material The number of the sample C1 C2 C3 C4 C5 C6 Zircon/mol 0.3 0.3 0.3 0.3 0.3 0.3 Carbon black/mol 0.9 0.9 0.9 0.9 0.9 0.9 CaO/mol 0 0.06 0.12 0.18 0.27 0.3 Figure 1 XRD patterns of zircon powder.
From Fig.3-b we can see that when the amount of CaO addition was 40 mol%, the synthetic products were more dispersed and zirconia products were in shape of sphere with the grain size between 3 to 10 μm.
Online since: November 2011
Authors: Qing Xia Zhu, Wei Hui Jiang, Yan Hui Yang, Jian Min Liu
High temperature can result in the reducing of the iron oxide and abnormal growth of pigment grains [6], which is not conductive to prepare high quality iron-zircon pigment.
This method makes the precursors direct poly-condensation to form a large number of heterogeneous bonding by heating,different from traditonal hydrolytic reaction [7].
Item Number is 50962006.
This method makes the precursors direct poly-condensation to form a large number of heterogeneous bonding by heating,different from traditonal hydrolytic reaction [7].
Item Number is 50962006.
Online since: January 2014
Authors: Xiang Ju Liu
The network architecture of big data platform Completely share-nothing disk architecture SAN / FC network, network hosts SAN / shared disk, common databases, etc. are designed for OLTP processing functions, a large number of small transactions run best when querying data, shown in Figure 3.
Cloud-based unified big data analytics platform will bring greatly expanded processing capacity, allowing the use of fine-grained data sets, to achieve low latency data access as well as tight integration of data warehousing and analysis for companies and businesses provide the actual content and have workable solutions.
Conclusions According to Gartner forecasts, 2012 data technology in the high-speed development, continue to make a breakthrough on the technology intensive, release or other products can have a significant benefit of the project quickly appeared in large numbers.
Cloud-based unified big data analytics platform will bring greatly expanded processing capacity, allowing the use of fine-grained data sets, to achieve low latency data access as well as tight integration of data warehousing and analysis for companies and businesses provide the actual content and have workable solutions.
Conclusions According to Gartner forecasts, 2012 data technology in the high-speed development, continue to make a breakthrough on the technology intensive, release or other products can have a significant benefit of the project quickly appeared in large numbers.
Online since: February 2014
Authors: Teng Shi Liu, Yi Tao Yang
As can be seen, samples after normalizing distributed into uniform distribution and fine ferrite and pearlite with grain size of 7-10 grand.
Fig.3 Influence of the normalizing temperature on HBS The inner components of pearlite in the sample after normalizing at 900℃ was analyzed by EDS point scan, given in Fig.4, It can be seen that a large number of alloying elements dissolved in pearlite after austenitizing normalizing at 900℃.
(a)500℃/2h (b)530℃/2h (c)560℃/2h (d)590℃/2h (e)620℃/2h (f)650℃/2h Fig.5 The number of ferritic microstructure of samples after tempering increase Mechanical properties.
Fig.3 Influence of the normalizing temperature on HBS The inner components of pearlite in the sample after normalizing at 900℃ was analyzed by EDS point scan, given in Fig.4, It can be seen that a large number of alloying elements dissolved in pearlite after austenitizing normalizing at 900℃.
(a)500℃/2h (b)530℃/2h (c)560℃/2h (d)590℃/2h (e)620℃/2h (f)650℃/2h Fig.5 The number of ferritic microstructure of samples after tempering increase Mechanical properties.
Online since: February 2011
Authors: Mieczyslaw Jurczyk, Andrzej Miklaszewski
Such a feature occurs by the generation of a wide number of dislocations as well as other lattice defects.
Further milling lead to an increase of the interface number and the sizes of the elementary component area decrease from millimeter to submicrometer lengths.
Near surface TiB precipitation was found in the form of needle-shaped whiskers, which are deeper in comparison with very fine coarse spherical grains (Fig.4).
Further milling lead to an increase of the interface number and the sizes of the elementary component area decrease from millimeter to submicrometer lengths.
Near surface TiB precipitation was found in the form of needle-shaped whiskers, which are deeper in comparison with very fine coarse spherical grains (Fig.4).
Online since: December 2010
Authors: Min Feng, Peng Guo
Plastic grains of waste polystyrene foam smashed to max. particle size of 5mm by polystyrene crusher[2].
Tab. 2.1 Factor level Level Cement(A) Fly ash(B) lime (C) Polystyrene(D) w/s(E) Gypsum (F) 1 63% 30% 2% 25% 0.35 5% 2 52% 40% 5% 35% 0.38 3% 3 41% 50% 8% 45% 0.41 1% Tab. 2.2 mixing proportion and the test of results Serial number Column number The test of results A B Empty columns C D E F Compression strengths of 5d (MPa) Compression strengths of 14d (MPa) Dry density(g/cm3) 1 1 1 1 1 1 1 1 3.13 4.45 0.696 2 1 2 2 2 2 2 2 2.98 3.98 0.672 3 1 3 3 3 3 3 3 2.83 3.43 0.666 4 2 1 1 2 2 3 3 1.29 2.08 0.512 5 2 2 2 3 3 1 1 2.23 3.36 0.660 6 2 3 3 1 1 2 2 3.52 4.58 0.692 7 3 1 2 1 3 2 3 2.86 5.34 0.445 8 3 2 3 2 1 3 1 1.83 2.56 0.572 9 3 3 1 3 2 1 2 2.95 4.13 0.719 10 1 1 3 3 2 2 1 1.92 3.71 0.663 11 1 2 1 1 3 3 2 3.43 4.83 0.765 12 1 3 2 2 1 1 3 4.57 6.27 0.838 13 2 1 2 3 1 3 2 1.50 2.98 0.527 14 2 2 3 1 2 1 3 2.17 3.78 0.654 15 2 3 1 2 3 2 1 1.60 3.47 0.649 16 3 1 3 2 3 1 2 2.13 4.39 0.503 17 3 2 1 3 1 2 3 1.73 2.02 0.570 18 3 3 2 1 2 3 1 0.78 1.68 0.554 Analysis test result (Tab.2.3)
Tab. 2.1 Factor level Level Cement(A) Fly ash(B) lime (C) Polystyrene(D) w/s(E) Gypsum (F) 1 63% 30% 2% 25% 0.35 5% 2 52% 40% 5% 35% 0.38 3% 3 41% 50% 8% 45% 0.41 1% Tab. 2.2 mixing proportion and the test of results Serial number Column number The test of results A B Empty columns C D E F Compression strengths of 5d (MPa) Compression strengths of 14d (MPa) Dry density(g/cm3) 1 1 1 1 1 1 1 1 3.13 4.45 0.696 2 1 2 2 2 2 2 2 2.98 3.98 0.672 3 1 3 3 3 3 3 3 2.83 3.43 0.666 4 2 1 1 2 2 3 3 1.29 2.08 0.512 5 2 2 2 3 3 1 1 2.23 3.36 0.660 6 2 3 3 1 1 2 2 3.52 4.58 0.692 7 3 1 2 1 3 2 3 2.86 5.34 0.445 8 3 2 3 2 1 3 1 1.83 2.56 0.572 9 3 3 1 3 2 1 2 2.95 4.13 0.719 10 1 1 3 3 2 2 1 1.92 3.71 0.663 11 1 2 1 1 3 3 2 3.43 4.83 0.765 12 1 3 2 2 1 1 3 4.57 6.27 0.838 13 2 1 2 3 1 3 2 1.50 2.98 0.527 14 2 2 3 1 2 1 3 2.17 3.78 0.654 15 2 3 1 2 3 2 1 1.60 3.47 0.649 16 3 1 3 2 3 1 2 2.13 4.39 0.503 17 3 2 1 3 1 2 3 1.73 2.02 0.570 18 3 3 2 1 2 3 1 0.78 1.68 0.554 Analysis test result (Tab.2.3)
Online since: December 2012
Authors: Ram Meenakshi, Ranganath Muthu
In earlier days, wind energy was used to sail ships, mill grains and pump water.
Some of them are aero-dynamical improvements (improvements made in number of blades, diameter of blades, blade materials, and control system for pitching the blades), electrical improvements (like the use of DFIG and PMSG instead of SCIG and use of various power electronic switches), and mechanical improvement (like gearbox, tower, foundation and structure materials).
The HCS control is beneficial technique, as they do not require more number of sensors; control is simple and independent of turbine characteristics.
Some of them are aero-dynamical improvements (improvements made in number of blades, diameter of blades, blade materials, and control system for pitching the blades), electrical improvements (like the use of DFIG and PMSG instead of SCIG and use of various power electronic switches), and mechanical improvement (like gearbox, tower, foundation and structure materials).
The HCS control is beneficial technique, as they do not require more number of sensors; control is simple and independent of turbine characteristics.
Online since: August 2014
Authors: Ru Lin Peng, Rasha Alkaisee
It can give good polishing results on a number of metallic materials including steels and nickel based alloys.
Numbers 1 and 2 in the key indicate the measurement locations 1 and 2.
Under high magnifications (Figs. 4(b) and (c)), it can be seen that the EP process works uniformly over the surface and the polishing is essentially insensitive to grain orientations or boundaries between pearlitic colonies or between ferrite and pearlite.
Numbers 1 and 2 in the key indicate the measurement locations 1 and 2.
Under high magnifications (Figs. 4(b) and (c)), it can be seen that the EP process works uniformly over the surface and the polishing is essentially insensitive to grain orientations or boundaries between pearlitic colonies or between ferrite and pearlite.