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Online since: August 2013
Authors: Guang Yue Wang, Jian Peng Zhang, Jian Wu Zhao
The type in the geocell is SB200×400×1.5-8, the sheet chooses grain surface, the peel strength of the welding spot is 1000N/10cm, the thickness is 1.5±0.1mm, the height is 200mm.The welding distance is 400mm, which attaches 8mm punching.
The calculation results summarized in table 2 Table 2 The safety factor of the working conditions The number for working condition The protecting situation of the side slope Infiltration intensity (m/s) Safety factor The increasing percentage A1 unprotected 2.5×10-7 3.043 14.1% A2 Protection with geocell 2.5×10-7 3.472 B1 unprotected 2.0×10-6 1.732 13.7% B2 Protection with geocell 2.0×10-6 1.97 C1 unprotected 6.0×10-6 1.166 14.5% C2 Protection with geocell 6.0×10-6 1.335 Comparing to safety factor under the condition of the same rainfall intensity, we can conclude that in the same intensity under the action of rainfall infiltration, comparing the protecting slope that has geocell with the slope without protecting, the safety factor value all increases.
The calculation results summarized in table 2 Table 2 The safety factor of the working conditions The number for working condition The protecting situation of the side slope Infiltration intensity (m/s) Safety factor The increasing percentage A1 unprotected 2.5×10-7 3.043 14.1% A2 Protection with geocell 2.5×10-7 3.472 B1 unprotected 2.0×10-6 1.732 13.7% B2 Protection with geocell 2.0×10-6 1.97 C1 unprotected 6.0×10-6 1.166 14.5% C2 Protection with geocell 6.0×10-6 1.335 Comparing to safety factor under the condition of the same rainfall intensity, we can conclude that in the same intensity under the action of rainfall infiltration, comparing the protecting slope that has geocell with the slope without protecting, the safety factor value all increases.
Online since: October 2011
Authors: Abolghasem Ataie, Saeed Heshmati-Manesh, Saeed Sheibani, Alfonso Caballero Martínez
A number of studies have been reported on Cu-Cr composites.
On the other hand, further improvement of mechanical properties can be achieved by decreasing the composite grain size to the nanometric scale [6].
On the other hand, further improvement of mechanical properties can be achieved by decreasing the composite grain size to the nanometric scale [6].
Online since: October 2015
Authors: Caori Patricia Takeuchi, Martin Estrada, Dorian Luis Linero
The first reference is a number that indicates
the block of laminated bamboo guadua material from which were obtained and the second referenceFig. 1: Transformation of bamboo guadua.
The preparation of the surface was mechanically performed with abrasive papers of different grain fineness.
The preparation of the surface was mechanically performed with abrasive papers of different grain fineness.
Online since: January 2009
Authors: Joanna Mystkowska
The filler's grains size oscillate between 40 nm and 3 000 nm (mean 550 nm).
Acknowledgement The author gratefully acknowledge the Polish Ministry of Science and Higher Education for its full financial support of this work (project number N507 163 32/0501).
Acknowledgement The author gratefully acknowledge the Polish Ministry of Science and Higher Education for its full financial support of this work (project number N507 163 32/0501).
Online since: October 2018
Authors: Victor I. Kernitskiy
Thanks to its complex of valuable properties the relatively low-tonnage polyesters, such as polyethylene terephthalate-glycol (PETG), polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN), polyetheretherketone (PEEK), polyethersulfone (PES), and a number of their modifications, have been gaining widespread use [1].
Corn, grain, sugar cane, agricultural raw materials and paper wastes can be used as feedstock.
Corn, grain, sugar cane, agricultural raw materials and paper wastes can be used as feedstock.
Online since: June 2010
Authors: Tadeusz Frączek, Michał Olejnik, Jarosław Jasiński
Introduction
Owing to good corrosion resistance, mechanical strength, heat resistance and high formability,
chromium-nickel austenitic steels have found an application in a number of industry branches.
Considering high concentration gradients, it can be noticed that diffusion at the first stage does not proceed through the grain boundaries, thus resulting in the formation of high homogeneity nitrogen layers.
Considering high concentration gradients, it can be noticed that diffusion at the first stage does not proceed through the grain boundaries, thus resulting in the formation of high homogeneity nitrogen layers.
Online since: October 2010
Authors: Chun Wu Ma
The procedures are as follows:
Blast the component with grain size 120/220 AL2O3 at high pressure.
The surface temperature measurement of combustor As is shown in Fig.5, color image of the standard templates and the combustor is acquired at the same time, the number shown in the picture are results from the intelligent interpretation system, the results are consistent with the values of the standard templates and manual interpretation, the error is less than 10℃.
The surface temperature measurement of combustor As is shown in Fig.5, color image of the standard templates and the combustor is acquired at the same time, the number shown in the picture are results from the intelligent interpretation system, the results are consistent with the values of the standard templates and manual interpretation, the error is less than 10℃.
Online since: October 2011
Authors: Rong Mo, Hai Cheng Yang, Xiao Jun Wang, Xiao Rui Lu, Cheng Zhang
Building of Model of factors affecting product quality(AHP-PQ)
1.1 Building of Hierarchy Model
1) Divide the factors that may affect the product quality into a certain number of hierarchies.
2) By using ISM (interpretative structural modeling method), the hierarchy model of factors effecting product quality was determined.
1.2 Structure of AHP judgment matrix
Targeting an factor in upper hierarchy, relative importance of these factors associated with that was compared and quantified.
The chemical compositions are: 0.01C,0.001H,0.05O,0.01N,0.05Fe. grain size: 0.83-12.7mm,Brinell hardness: 95. 2) Design of processing technology: In order to discuss the effect of material feeding method on Chemical compositions, the following material feeding method and melting process were designed as shown in Chart 2-2.It is 60kgs per electrode.
The chemical compositions are: 0.01C,0.001H,0.05O,0.01N,0.05Fe. grain size: 0.83-12.7mm,Brinell hardness: 95. 2) Design of processing technology: In order to discuss the effect of material feeding method on Chemical compositions, the following material feeding method and melting process were designed as shown in Chart 2-2.It is 60kgs per electrode.
Online since: September 2011
Authors: Sheng Li Zheng, Guo Hui Li
Due to the vibration core tube produced internal excitation and vibration tube produces swing, it overcome the defects that the external vibration type concrete shaping machine only vibrated in the surface, dissatisfied the close-grained plate thickness requirements and floor of the load bearing ability was poor .With the core tube swinging when pulled, it had overcome the difficulties of pulling and wall collapse trombone problems.
Its input-output device and the I/O assignment and serial number were shown in Figure 3.
Its input-output device and the I/O assignment and serial number were shown in Figure 3.
Online since: June 2014
Authors: Wei Gen Chen, Qu Zhou, Shu Di Peng
Currently, large researches have been done toward how to fabricate low-dimensional nanostructures with small grain size, high surface-to-volume ratio, high orientation and crystallization, and special pore structure [5].
When surfactant PEG was added to the precursor solution, a large number of tiny Zn(OH)42− and ZnO nanoparticles embedded into PEG long-chain substrate and easily grew along the long chain of PEG.
When surfactant PEG was added to the precursor solution, a large number of tiny Zn(OH)42− and ZnO nanoparticles embedded into PEG long-chain substrate and easily grew along the long chain of PEG.