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Online since: April 2014
Authors: Huan Yu Chi, Shu Yu Di
On the basis of simulation, several test-beds were built, and a large number of experimental studies.
Conclusion The designed automatic control system for drier has such characters as high reliability, strong disturbance rejection ability, good reconstruction and is suitable for time-varying nonlinear, large time lag and multivariate grain drying process control.
[4]Chen guoheng,, Rotating bundle of new energy-saving drying machine [J], Chemical Industry and Engineering,1996,(4):40-43 [5]Xia hongjun, Tube bundle dryer design, Production and selection[J],Western Grain and Oil Technology, 2004, 29(1): 38-40 [6]Tao yonghua,, New PID control and application [M], Beijing: Mechanical Industry Press, 2002
Conclusion The designed automatic control system for drier has such characters as high reliability, strong disturbance rejection ability, good reconstruction and is suitable for time-varying nonlinear, large time lag and multivariate grain drying process control.
[4]Chen guoheng,, Rotating bundle of new energy-saving drying machine [J], Chemical Industry and Engineering,1996,(4):40-43 [5]Xia hongjun, Tube bundle dryer design, Production and selection[J],Western Grain and Oil Technology, 2004, 29(1): 38-40 [6]Tao yonghua,, New PID control and application [M], Beijing: Mechanical Industry Press, 2002
Online since: February 2014
Authors: Petr Konvalinka, Pavel Reiterman, Ondřej Holčapek, Monika Čáchová, Filip Vogel, Marcel Jogl
Fine parts complement the grain size distribution curve, but also due to subsequent hydration arise phases with better resistance to aggressive substances from surrounding environment.
Therefore number of laboratories is looking for solution of increasing negative impact closely associated with cement and concrete production.
Attention of a number of leading research organization is focused on the development of alternative binder systems and other substituent of cement in concrete.
132.75 178.48 134.14 133.24 Table 4 Evolution of compressive strength of studied concrete mixtures Mixture FCP 0 FCP 1 FCP 2 FCP 3 FCP 4 FCP 5 FCP 6 Compressive strength [MPa] [MPa] [MPa] [MPa] [MPa] [MPa] [MPa] 7 days 50.5 54.5 53.0 47.8 45.6 42.1 37.7 14 days 59.4 60.1 57.1 52.8 51.8 47.9 46.2 28 days 61.0 64.3 62.9 59.5 58.8 56.2 50.2 90 days 63.1 67.7 65.3 64.3 62.9 61.8 59.0 Figure 1 Evolution of compressive strength of concrete with FCP addition Table 5 Hygric properties of studied concrete mixtures Mixture FCP 0 FCP 1 FCP 2 FCP 3 FCP 4 FCP 5 FCP 6 A after 28 days [kgm-2s-1/2] 0.0078 0.0068 0.0061 0.0109 0.0110 0.0108 0.0165 A after 90 days [kgm-2s-1/2] 0.0140 0.0121 0.0111 0.0119 0.0140 0.0133 0.0126 k after 28 days [m2s-1] 3.82×10-9 2.94×10-9 3.24×10-9 6.77×10-9 3.76×10-9 6.52×10-9 1.53×10-8 k after 90 days [m2s-1] 1.23×10-8 9.29×10-9 7.76×10-9 8.05×10-9 6.15×10-9 9.84×10-9 8.93×10-9 Summary From the presented results is evident influence of fine ceramic powder on the number
Therefore number of laboratories is looking for solution of increasing negative impact closely associated with cement and concrete production.
Attention of a number of leading research organization is focused on the development of alternative binder systems and other substituent of cement in concrete.
132.75 178.48 134.14 133.24 Table 4 Evolution of compressive strength of studied concrete mixtures Mixture FCP 0 FCP 1 FCP 2 FCP 3 FCP 4 FCP 5 FCP 6 Compressive strength [MPa] [MPa] [MPa] [MPa] [MPa] [MPa] [MPa] 7 days 50.5 54.5 53.0 47.8 45.6 42.1 37.7 14 days 59.4 60.1 57.1 52.8 51.8 47.9 46.2 28 days 61.0 64.3 62.9 59.5 58.8 56.2 50.2 90 days 63.1 67.7 65.3 64.3 62.9 61.8 59.0 Figure 1 Evolution of compressive strength of concrete with FCP addition Table 5 Hygric properties of studied concrete mixtures Mixture FCP 0 FCP 1 FCP 2 FCP 3 FCP 4 FCP 5 FCP 6 A after 28 days [kgm-2s-1/2] 0.0078 0.0068 0.0061 0.0109 0.0110 0.0108 0.0165 A after 90 days [kgm-2s-1/2] 0.0140 0.0121 0.0111 0.0119 0.0140 0.0133 0.0126 k after 28 days [m2s-1] 3.82×10-9 2.94×10-9 3.24×10-9 6.77×10-9 3.76×10-9 6.52×10-9 1.53×10-8 k after 90 days [m2s-1] 1.23×10-8 9.29×10-9 7.76×10-9 8.05×10-9 6.15×10-9 9.84×10-9 8.93×10-9 Summary From the presented results is evident influence of fine ceramic powder on the number
Online since: November 2013
Authors: Sarunya Promkotra
Dimensionless shear stress relates to shear velocity, geometry and grain size of particles, and difference of flow velocity.
Considerations of sediments include grain size, type of sediments, transportation of particles and dispersion.
The terminal fall velocity of sediment particles, w can be derived by equating the effective weight force to the drag resistance as (1) where w = Fall Velocity (m/s), g = Gravitational Acceleration (m/s2), D = Sediment Diameter (µm) and CD = Drag Coefficient (m/s) = , Re* = Particle Reynolds Number.
Dimensionless shear stress is straightforwardly relationship of shear velocity, which is geometry and grain size of particles, and distribution of flow velocity.
Considerations of sediments include grain size, type of sediments, transportation of particles and dispersion.
The terminal fall velocity of sediment particles, w can be derived by equating the effective weight force to the drag resistance as (1) where w = Fall Velocity (m/s), g = Gravitational Acceleration (m/s2), D = Sediment Diameter (µm) and CD = Drag Coefficient (m/s) = , Re* = Particle Reynolds Number.
Dimensionless shear stress is straightforwardly relationship of shear velocity, which is geometry and grain size of particles, and distribution of flow velocity.
Online since: September 2014
Authors: Yong Bin Zhou
SOA Introduction
SOA is a kind of on-demand, variable, coarse-grained, loosely coupled services architecture, and communicates through simple, well-defined services between service interfaces.
When the service implements changes, service users will completely not affect; (3) Coarse-grained services: guarantee service requester will be used in a consistent manner, as external integration of best practices.
Table 2 Permissions determine interface parameters Serial number Name Type Description 1 AuthofityPermission—Request Compound used to represent a data operation permission to judge the Request (choose parameters) 2 UserName Character represent platform user name (choose parameters) 3 AuthorityPermission—Response Compound represent a data operation permissions judgment response (choose parameters) 4 Authofitylnfo Character return represent operation permissions XML description document (choose parameters) 5 ERROR_AUTHDRITYPER-MISSIONREQUEST permissions determine request error Table 3 System login interface parameters Serial number Name Type Description 1 LoginRequest compound represent a login service operation information request (choose parameters) 2 UserName character platform user name ( choose parameters) 3 PassWord character platform user PassWord (choose parameters) 4 Loginlnfo character denote information by users (users) custom extensions (optional parameters) 5 LoginResponse
Let us know whether the login operation success (will choose parameters) 7 Loginlnfo character represent the login (user) custom results extend information (optional parameters) 8 ERROR_LOGINREQUEST ~ system login request error Table 4 System cancel interface parameters Serial number Name Type Description 1 LoginRequest compound represent a logout service information request ( choose parameters) 2 UserName character platform user name (choose parameters) 3 PLogoutResponse compound represent a logout service information response (choose parameters) 4 Loginstatus Boolean return logout operation state, told the logout success ( choose parameters) 5 ERROUTREQUEST ~ system logout request error 2.
When the service implements changes, service users will completely not affect; (3) Coarse-grained services: guarantee service requester will be used in a consistent manner, as external integration of best practices.
Table 2 Permissions determine interface parameters Serial number Name Type Description 1 AuthofityPermission—Request Compound used to represent a data operation permission to judge the Request (choose parameters) 2 UserName Character represent platform user name (choose parameters) 3 AuthorityPermission—Response Compound represent a data operation permissions judgment response (choose parameters) 4 Authofitylnfo Character return represent operation permissions XML description document (choose parameters) 5 ERROR_AUTHDRITYPER-MISSIONREQUEST permissions determine request error Table 3 System login interface parameters Serial number Name Type Description 1 LoginRequest compound represent a login service operation information request (choose parameters) 2 UserName character platform user name ( choose parameters) 3 PassWord character platform user PassWord (choose parameters) 4 Loginlnfo character denote information by users (users) custom extensions (optional parameters) 5 LoginResponse
Let us know whether the login operation success (will choose parameters) 7 Loginlnfo character represent the login (user) custom results extend information (optional parameters) 8 ERROR_LOGINREQUEST ~ system login request error Table 4 System cancel interface parameters Serial number Name Type Description 1 LoginRequest compound represent a logout service information request ( choose parameters) 2 UserName character platform user name (choose parameters) 3 PLogoutResponse compound represent a logout service information response (choose parameters) 4 Loginstatus Boolean return logout operation state, told the logout success ( choose parameters) 5 ERROUTREQUEST ~ system logout request error 2.
Online since: March 2017
Authors: Peter Palček, Mária Chalupová, Zuzana Dresslerová
Total internal damping affects a number of different, interacting and functioning factors, such as defects in the crystal structure, the movement of dislocations, plastic deformation, grain boundary sliding, elastodynamic and magnetoelastic phenomena.
After heat treatment the microstructure consist of the polyedric grains, almost all phases in the interdendritic areas were dissoluted and material was homogenized.
Based on the others works is this shifting caused due to the increasing number of weak pinning points and in next run higher strain amplitude must be applied to cause breakaway of dislocations.
According to some works that happened because of the strengthening of materials during the loading and based on the others works because of the increasing number of weak pinning points
After heat treatment the microstructure consist of the polyedric grains, almost all phases in the interdendritic areas were dissoluted and material was homogenized.
Based on the others works is this shifting caused due to the increasing number of weak pinning points and in next run higher strain amplitude must be applied to cause breakaway of dislocations.
According to some works that happened because of the strengthening of materials during the loading and based on the others works because of the increasing number of weak pinning points
Online since: December 2013
Authors: Jia Zhen Yan, Ning Li, Jin Wu Xie, Ying Zhang
To determine the optimum aging time at 435℃, a number of samples aged for different lengths of time, from 2 to 24 hours, were tested for damping capacity.
But as for the over-aged samples, a quantity of second phases presented at the grain boundaries and the interiors of grains.
A qualitative understanding of the observed different behavior of peak-aged and over-aged samples may be illustrated by considering the difference in the number of interstitial solute atoms per unit area of active damping domain.
The a-Mn phase was thought to tie-up the impurity atoms C and S, thereby reducing the number of available pinning agents.
But as for the over-aged samples, a quantity of second phases presented at the grain boundaries and the interiors of grains.
A qualitative understanding of the observed different behavior of peak-aged and over-aged samples may be illustrated by considering the difference in the number of interstitial solute atoms per unit area of active damping domain.
The a-Mn phase was thought to tie-up the impurity atoms C and S, thereby reducing the number of available pinning agents.
Online since: April 2012
Authors: En Li Jiao, Hao Meng Wang, Yi Qun Sun, Jun Sheng Sun
“Inter twist connection” technology can be realized by groove design of the roll of the forming machine in existing flux cored wire production line and by increasing the number of rolls.
However, typical dendrite arms can’t be recognized in the pro-eutectoid dendritic crystals of 14#, whose pro-eutectoid grains are more coarse, and the grains distribute disorderly without typical dendritic morphology.
With the C content keeping constant, when the Cr content in the powder rises from 26% to 45.5%, the increase of the hardness and the wear resistance of the deposited metal is not significant, due to the small number of carbide in the microstructure.
But the mircostructure of 23# is obviously hypoeutectic with obvious dendrites.It indicates that with the decrease of C content, the number of carbides gets smaller and the microstructures change from hypereutectic to eutectic and to hypoeutectic.
However, typical dendrite arms can’t be recognized in the pro-eutectoid dendritic crystals of 14#, whose pro-eutectoid grains are more coarse, and the grains distribute disorderly without typical dendritic morphology.
With the C content keeping constant, when the Cr content in the powder rises from 26% to 45.5%, the increase of the hardness and the wear resistance of the deposited metal is not significant, due to the small number of carbide in the microstructure.
But the mircostructure of 23# is obviously hypoeutectic with obvious dendrites.It indicates that with the decrease of C content, the number of carbides gets smaller and the microstructures change from hypereutectic to eutectic and to hypoeutectic.
Online since: November 2012
Authors: Guo Liang Xie, Xiang Peng Xiao, Qiang Song Wang, Lijun Peng, Bai Qing Xiong
A number of studies have examined various techniques for further improving the strength of Cu-Ni-Si alloys by, such as increasing the contents of Ni and Si, adding a third alloying element, and altering the aging processes [13].
The key factors of effects on conductivity of solid solutions are total volume and size of the solute particle, but elements and grain boundary also substantially affect the conductivity [15].
It can be seen (Fig2(b)~(d)) that a large number of deformation bands and slip bands within the grain, which arise from the high degree of cold deformation.
Tab.1 EDS analysis of the particles spot for Cu-Ni-Si-Zr-Cr At% Region Cu Ni Si Zr Cr A 25.5 60.8 13.7 — — B 46.5 35.4 9.7 4.6 3.8 The Cr, Zr atoms is very low solubility in Cu matrix at ambient temperature. so, the atoms will be form a small number of, thick flake Cr2Zr particles at solidified and initial cooling stage.
The key factors of effects on conductivity of solid solutions are total volume and size of the solute particle, but elements and grain boundary also substantially affect the conductivity [15].
It can be seen (Fig2(b)~(d)) that a large number of deformation bands and slip bands within the grain, which arise from the high degree of cold deformation.
Tab.1 EDS analysis of the particles spot for Cu-Ni-Si-Zr-Cr At% Region Cu Ni Si Zr Cr A 25.5 60.8 13.7 — — B 46.5 35.4 9.7 4.6 3.8 The Cr, Zr atoms is very low solubility in Cu matrix at ambient temperature. so, the atoms will be form a small number of, thick flake Cr2Zr particles at solidified and initial cooling stage.
Online since: October 2012
Authors: Ling Tao Mao, Dan Zhao, Ze Xun Yuan, Kai Zhou, Ji Li An
Those methods needs a large number of experiments to make statistical analysis and do not have the real-time property, which increases the input.
Generally, the attenuation coefficient of material is difficult to measure, quantitative description of CT is CT number, if CT number is converted to grey value according to certain linear conversion ratio, then we can obtain CT images.
This is because in the process of uniaxial consolidation the gap water in the soil will scatter and disappear, which makes the soil sample close-grained even more.
It shows the pore water disappears in the process of consolidation which makes the soil samples more close-grained.
Generally, the attenuation coefficient of material is difficult to measure, quantitative description of CT is CT number, if CT number is converted to grey value according to certain linear conversion ratio, then we can obtain CT images.
This is because in the process of uniaxial consolidation the gap water in the soil will scatter and disappear, which makes the soil sample close-grained even more.
It shows the pore water disappears in the process of consolidation which makes the soil samples more close-grained.
Online since: April 2014
Authors: Zhao Qiu, Tao Liu, Ceng Jun Dai
The other research on the information extraction is not to extract the fine-grained data, but to extract theme contents of heading and main body or interested regions, which is also the emphasis of this paper.
The other research on the information extraction is not to extract the fine-grained data, but to extract theme contents of heading and main body or interested regions, which is also the emphasis of this paper.
In recent years, there have been a great number of researches on the extraction of theme contents from the web page in China.
It treated the number of links and number of non-link texts in the node of STU as the semantic information, transformed HTML document into STU-DOM tree and took the structure-based filtration and semantic-based pruning.
The other research on the information extraction is not to extract the fine-grained data, but to extract theme contents of heading and main body or interested regions, which is also the emphasis of this paper.
In recent years, there have been a great number of researches on the extraction of theme contents from the web page in China.
It treated the number of links and number of non-link texts in the node of STU as the semantic information, transformed HTML document into STU-DOM tree and took the structure-based filtration and semantic-based pruning.