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Online since: December 2012
Authors: Wei Luo, Xin Guo Wu, Wen Li Liu, Cheng Long He
Emergy is energy number transformed from another type energy containing flowing or storage (Odum, 1988[7]).
Ecological capacity supply (EC) shows the sum of ecological productive land area that it can provide the human of the region, which is the total emergy of renewable natural resources of the locality divided by the region emergy density (D): EC= ER/D (4) Renewable natural resources of Jiaxing main includes rice, wheat, barley, corn and other grain, beans, potato, rapeseed, cotton, hemp, sugar, melons vegetables, fruits, edible vegetable oil and silk.
We can have the per capita ecological footprint (ef), the per capita ecological carrying capacity (ec) and the per capita ecological surplus (es) though EF, EC and ES divided by the total number of region population (P), respectively.
Ecological capacity supply (EC) shows the sum of ecological productive land area that it can provide the human of the region, which is the total emergy of renewable natural resources of the locality divided by the region emergy density (D): EC= ER/D (4) Renewable natural resources of Jiaxing main includes rice, wheat, barley, corn and other grain, beans, potato, rapeseed, cotton, hemp, sugar, melons vegetables, fruits, edible vegetable oil and silk.
We can have the per capita ecological footprint (ef), the per capita ecological carrying capacity (ec) and the per capita ecological surplus (es) though EF, EC and ES divided by the total number of region population (P), respectively.
Online since: February 2015
Authors: Csaba Balázsi, M. Lakatos-Varsányi, M. Furko
The chosen pulse current parameters with the smaller grain size and highest current efficiency were as follows: ton: 5ms, toff: 15ms, ip: 40mAcm-2.
(mA/cm2) ×M (g)/ρ (g/cm3) × n)× 3270 where 3270 = 0.01×[1 year (in seconds)/96497.8] and 96497.8=1Faraday in Coulombs, M is the atomic weight of the metal, ρ is the density, n is the charge number which indicates the number of electrons exchanged in the dissolution reaction.
(mA/cm2) ×M (g)/ρ (g/cm3) × n)× 3270 where 3270 = 0.01×[1 year (in seconds)/96497.8] and 96497.8=1Faraday in Coulombs, M is the atomic weight of the metal, ρ is the density, n is the charge number which indicates the number of electrons exchanged in the dissolution reaction.
Online since: July 2014
Authors: Ying Yin, Qing Guo Meng, Xiao Jun Guo
Aluminum alloy grain caused by organization change in volume change can also cause the deformation of the weldment is this wooden reasons for welding stress and deformation.
Second, weld number to clear the influence of welding deformation, weld is less, the better for welding deformation, this requires the design as far as possible under the condition of meet the requirements, optimize the weld number, avoid unnecessary weld, so as to control the welding deformation.
Second, weld number to clear the influence of welding deformation, weld is less, the better for welding deformation, this requires the design as far as possible under the condition of meet the requirements, optimize the weld number, avoid unnecessary weld, so as to control the welding deformation.
Online since: December 2012
Authors: Shuang Fei Wang, Hong Xiang Zhu, Jian Chen, Fu Jie Yang, Yong Hong Li
And then placed the digestion reaction tank in ultrasonic cell disrupter system, adjusted the ultrasonic working time 4s, interval 6s and total number of 60, started this instrument.
At the same time, mechanical shear would make latex grain surface electric double layer or hydration layer to be deformation.
As a result, the initial particle size increases with reducing the formation of number of elementary particles.
At the same time, mechanical shear would make latex grain surface electric double layer or hydration layer to be deformation.
As a result, the initial particle size increases with reducing the formation of number of elementary particles.
Online since: January 2014
Authors: Hong Yuan Fan, Hai Bo Zhao, Hao Du, Guang Xian
In addition, studies indicated that yttrium atoms play an important role in blocking the diffusion at the grain boundary where there is usually a quick diffusion path for oxygen [11].
Acknowledgment The authors gratefully acknowledge the financial support of this research by the Ministry of Industry and Information Technology of the People’s Republic of China with the project number 2012ZX04003011 and Natural Science Foundation of China with project number 51275323.
Acknowledgment The authors gratefully acknowledge the financial support of this research by the Ministry of Industry and Information Technology of the People’s Republic of China with the project number 2012ZX04003011 and Natural Science Foundation of China with project number 51275323.
Online since: March 2013
Authors: Song Li, Xiu Fang Sun, Jin Xi Mao
A large number of crop straws burned by farmers have great effect on the environment.Using of waste straws and rejected forest products as raw materials for production of decorative materials not only alleviates the shortage of wood supply, to make up for the lack of wood products, and fully complies with our national industrial policies of resource conservation and environmental protection to reduce air pollution.It is rated as a marvelous project of resource recycling utilization.
What’s more,the production cost is so high that the utilization rate of printing membrane materials can only reach 30%.Meanwhile, It would produce a large number of water pollution and air pollution in the process of production,that belongs to non-environmentally friendly production and non-environmentally friendly product ,so as to impede the development and application of water printing technology as a consequence.
Production process and excellent performance The technology of water printing ecological wood materials process abandoned crops such as maize straw, bean stalks, rice husk and sawdust into plant powder, and then add a certain amount of PVC used as raw materials in the extrusion equipment for pultrusion processing into various specifications of sections,plates and wires.However, the surface of the processed products is a substrate of a single color, and can not be applied directly.Thus it is indispensable to apply water printing technology to dip-coating print a variety of wood grain patterns on the surface of the products, and then process them into doors, floors and furniture products to meet the environmental performance of non-toxic, odorless, zero-formaldehyde, no harmful gas release, and can be recycled.
What’s more,the production cost is so high that the utilization rate of printing membrane materials can only reach 30%.Meanwhile, It would produce a large number of water pollution and air pollution in the process of production,that belongs to non-environmentally friendly production and non-environmentally friendly product ,so as to impede the development and application of water printing technology as a consequence.
Production process and excellent performance The technology of water printing ecological wood materials process abandoned crops such as maize straw, bean stalks, rice husk and sawdust into plant powder, and then add a certain amount of PVC used as raw materials in the extrusion equipment for pultrusion processing into various specifications of sections,plates and wires.However, the surface of the processed products is a substrate of a single color, and can not be applied directly.Thus it is indispensable to apply water printing technology to dip-coating print a variety of wood grain patterns on the surface of the products, and then process them into doors, floors and furniture products to meet the environmental performance of non-toxic, odorless, zero-formaldehyde, no harmful gas release, and can be recycled.
Online since: September 2016
Authors: Thangiah Selvaraj, B. Singaravel, Chimmalagi Marulaswami
The cutting tool material used is Chemical Vapour Deposition (CVD) multi layer coating (TiN/TiCN/AL2O3) of fine grained tungsten carbide 6% cobalt substrate with ISO geometry of CNMG 120404.
Taguchi orthogonal array is used to study the effect of process parameters on performance characteristics with minimum number of experiments [13].
Generally, cutting speed can produce dimensional accuracy errors by number of ways, such as by elastic deformation of the work piece due to cutting force, tool wear, thermal distortion, Built-up edge (BUE) formation and radial spindle error.
Taguchi orthogonal array is used to study the effect of process parameters on performance characteristics with minimum number of experiments [13].
Generally, cutting speed can produce dimensional accuracy errors by number of ways, such as by elastic deformation of the work piece due to cutting force, tool wear, thermal distortion, Built-up edge (BUE) formation and radial spindle error.
Online since: June 2009
Authors: Wan Shan Wang, Tian Biao Yu
It has intelligence and can do by itself and provides corresponding program .Compared
with popular solid software, agents have more grain and intelligent level.
The dialogue layer is composed by a number of interactive agents.
The problem decomposition layer is composed by a number of problem decomposition agents.
The dialogue layer is composed by a number of interactive agents.
The problem decomposition layer is composed by a number of problem decomposition agents.
Online since: November 2017
Authors: Bohuslav Mašek, Štěpán Jeníček, Dagmar Bublíková, Kateřina Opatová
The reason is that it is a complex process, in which a number of parameters must be optimized.
Fig. 1 Prior austenite grain identified in a martensitic matrix after Q&P processing Fig. 2 Physical simulation in a thermomechanical simulator Experimental Programme For this experiment, three new experimental steels were created whose special chemistries lowered the Ms and Mf temperatures (Tab. 1).
Table 2 Heat treatment parameters and resulting mechanical properties Sequence number/steel TA [°C]/tA Cooling rate QT PT [°C/s] /tPT HV10 [-] Rm A5mm RA type [s] [°C/s] [°C] [s] [MPa] [%] [%] 1/AHSS1 850/100 1 150 250/600 587 2135 8 - 1/AHSS2 850/100 1 150 250/600 594 2137 10 - 1/AHSS3 850/100 1 150 250/600 587 2167 10 13 2/AHSS1 850/100 1 150 300/600 487 1799 11 - 2/AHSS2 850/100 1 150 300/600 518 1943 13 18 2/AHSS3 850/100 1 150 300/600 453 1660 13 - 3/AHSS1 850/100 1 150 400/600 488 1727 11 - 3/AHSS2 850/100 1 150 400/600 478 1842 14 36 3/AHSS3 850/100 1 150 400/600 490 1750 13 - 4/AHSS1 850/100 0,5 150 200/600 488 2308 11 8 4/AHSS2 850/100 0,5 150 200/600 521 2025 10 - 4/AHSS3 850/100 0,5 150 200/600 507 1864 8 - In the Q&P process, the soaking temperature (TA) was set at 850 °C and the time at temperature was 600 s.
Fig. 1 Prior austenite grain identified in a martensitic matrix after Q&P processing Fig. 2 Physical simulation in a thermomechanical simulator Experimental Programme For this experiment, three new experimental steels were created whose special chemistries lowered the Ms and Mf temperatures (Tab. 1).
Table 2 Heat treatment parameters and resulting mechanical properties Sequence number/steel TA [°C]/tA Cooling rate QT PT [°C/s] /tPT HV10 [-] Rm A5mm RA type [s] [°C/s] [°C] [s] [MPa] [%] [%] 1/AHSS1 850/100 1 150 250/600 587 2135 8 - 1/AHSS2 850/100 1 150 250/600 594 2137 10 - 1/AHSS3 850/100 1 150 250/600 587 2167 10 13 2/AHSS1 850/100 1 150 300/600 487 1799 11 - 2/AHSS2 850/100 1 150 300/600 518 1943 13 18 2/AHSS3 850/100 1 150 300/600 453 1660 13 - 3/AHSS1 850/100 1 150 400/600 488 1727 11 - 3/AHSS2 850/100 1 150 400/600 478 1842 14 36 3/AHSS3 850/100 1 150 400/600 490 1750 13 - 4/AHSS1 850/100 0,5 150 200/600 488 2308 11 8 4/AHSS2 850/100 0,5 150 200/600 521 2025 10 - 4/AHSS3 850/100 0,5 150 200/600 507 1864 8 - In the Q&P process, the soaking temperature (TA) was set at 850 °C and the time at temperature was 600 s.
Online since: July 2019
Authors: Ding Zhou
A total number of loading cycles of 10,000 was considered, and the failure state was defined as 5% axial strain.
The permanent strain of fine sand under all the conditions shows the same changing trend with the number of cycles, that is, nearly 80% of the strain has been developed during the initial 2000 cycles.
Cumulative plastic deformation for fine-grained subgrade soils.
The permanent strain of fine sand under all the conditions shows the same changing trend with the number of cycles, that is, nearly 80% of the strain has been developed during the initial 2000 cycles.
Cumulative plastic deformation for fine-grained subgrade soils.