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Online since: March 2010
Authors: Dan Feng Zhang, Zhi Guo Liu, Xiao Ming Tan
Based on measuring data, different distributions (Normal, Lognormal, Weibull, Logistic, Gumbel )
were verified, the best-fit distributions of width and length is Weibull distribution, that of diameter is
Lognormal, their cumulative distribution function are shown respectively in Eq.3~ Eq.5.
1)(
24.3
95.97
−
−=
X
eXF (3)
1)(
51.2
59.28
−
−=
X
eXF (4)
( )
( )
∫ ×
−
−
⋅
⋅⋅
= dX
XF e x
2 2
193.02
896.1ln
193.02 1
π
(5)
Fig.7 Cumulative distribution rules of metallurgical particles
Summary
This paper has focused on the initial discontinuity sate of the advanced aluminum alloy rolling plate,
through plenty of tension and fatigue testing.
Online since: September 2014
Authors: Wu Kui Gan, Jin Bo Lu, Jian Min Zeng, Yong Zhen Liu, Ping Chen, Bin Feng, Li Hua Liang, Li Ping Su
Table 1 Thermophysical parameters of alloy 6061
Thermal physical parameters of material
values
Thermal conductivity (W·m-1·K-1)
180
Density (kg·m-3)
2700
Specific heat capacity(J·kg-1·K-1)
896
Result and comparison
Two kinds of heat sink, the round and rectangular, were used for simulation, respectively, as shown in Fig.2.
Online since: February 2017
Authors: Mauro Cesar Terence, M. Sánchez, Juan Alfredo Guevara Carrió
Carrióc
Materials Engineering Department
Mackenzie Presbyterian University, Rua da Consolação, 896 – 01302-907
São Paulo/SP, Brazil
amiguelsanchez4@me.com.br, bmauroterence@yahoo.com.br, cjgcarrio@gmail.com
Keywords: wood, nitric acid, crystalline cellulose
Abstract: Crystalline cellulose can be obtained from alternative sources like waste wood by hydrolysis with hydrochloric or sulfuric acid.
Online since: August 2016
Authors: Mircea Horia Tierean, Ioan Catalin Mon, Eugen Cicala, Michel Pilloz, Iryna Tomashchuk, Pierre Sallamand
Chemical composition of DI samples, according to ASTM A 896-90 is shown in Table 1.
Table 1 Chemical composition of samples DI (ASTM A 896-90), mass% C Si Mn S P Fe 3.5…3.6 2.4…2.5 0.25…0.3 0.01 0.01 balance The operational window laser power (P) - welding speed (S) was explored by carrying out the fusion lines on DI plates without preheating, to determinate areas of weldability.
Table 1 Chemical composition of samples DI (ASTM A 896-90), mass% C Si Mn S P Fe 3.5…3.6 2.4…2.5 0.25…0.3 0.01 0.01 balance The operational window laser power (P) - welding speed (S) was explored by carrying out the fusion lines on DI plates without preheating, to determinate areas of weldability.
Online since: August 2013
Authors: Feng Li, Can Song, Hua Jing Zhao
Value/
Exp.Value
HPCW-1
269
291
1.080
554
549
0.990
685
564
0.823
HPCW-2
269
291
1.080
536
561
1.050
698
666
0.953
HPCW-3
336
339
1.010
582
683
1.170
797
718
0.902
HPCW-4
336
344
1.020
567
692
1.220
778
759
0.976
HPCW-5
480
498
1.040
888
896
1.010
880
887
1.010
HPCW-6
480
441
0.919
825
791
0.959
780
790
1.010
HPCW-7
420
498
1.180
975
896
0.919
838
887
1.060
DHPCW-8
578
602
1.040
1400
1240
0.884
1280
1390
1.080
DHPCW-9
583
493
0.844
1260
1090
0.863
1080
1190
1.100
DHPCW-10
471
493
1.050
1050
1070
1.020
1200
1190
0.994
DHPCW-11
601
493
0.820
1190
1090
0.910
1040
1180
1.140
SHPCW-12
420
412
0.980
1210
830
0.687
928
1130
1.210
SHPCW-13
504
492
0.976
1150
946
0.820
1080
1080
1.000
SHPCW-14
420
399
0.949
1030
739
0.720
866
978
1.130
SHPCW-15
360
455
1.260
1100
818
0.741
921
1040
1.130
References
[1] Concrete structure design code[S].