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Online since: September 2005
Authors: Dong Yang Li, Jerzy A. Szpunar, M. Reza Bateni, X. Wang
Crystallographic reorientation
below a contact surface may be a possible cause for the reduction in the coefficient of
friction during sliding wear.
ODF data were analyzed to determine the spread of different texture components as a function of the applied load.
Texture analysis of AISI 304 stainless steel samples after cold rolling processes has shown that the main rolling texture component of the austenitic phase forms even at around 30% cold reduction in thickness and its intensity continuously increased with increasing cold reduction.
Initial rotations after small rolling reduction levels are towards orientation of the type {011}<100>.
After heavier reductions, a strong brass type was apparent [13].
ODF data were analyzed to determine the spread of different texture components as a function of the applied load.
Texture analysis of AISI 304 stainless steel samples after cold rolling processes has shown that the main rolling texture component of the austenitic phase forms even at around 30% cold reduction in thickness and its intensity continuously increased with increasing cold reduction.
Initial rotations after small rolling reduction levels are towards orientation of the type {011}<100>.
After heavier reductions, a strong brass type was apparent [13].
Online since: July 2022
Authors: Pierre-Olivier Bouchard, Katia Mocellin, Nagasai Meghana Rani Kauta
This allows a gradual increase in the thickness reduction (TR) which is quantified as seen in Eq.1.
This makes it challenging to optimize the process over a wide range of process parameters. [8], [9] introduce geometrical reductions by symmetrical considerations in their models to increase the cost efficiency.
The use of three rollers in the flowforming experiment (instead of one here) may have a beneficial effect on the reduction of the observed numerical material pile-up
Once they are determined, it is recommended to perform simulations using full 360° configurations in order to analyze local stress-strain data for the prediction of ductile fracture.
Kalpakcioglu, Maximum Reduction in Power Spinning of Tubes, J.
This makes it challenging to optimize the process over a wide range of process parameters. [8], [9] introduce geometrical reductions by symmetrical considerations in their models to increase the cost efficiency.
The use of three rollers in the flowforming experiment (instead of one here) may have a beneficial effect on the reduction of the observed numerical material pile-up
Once they are determined, it is recommended to perform simulations using full 360° configurations in order to analyze local stress-strain data for the prediction of ductile fracture.
Kalpakcioglu, Maximum Reduction in Power Spinning of Tubes, J.
Online since: October 2010
Authors: Volker Schmitt, Stefan Glang, Heiner Detert
Optical and electrochemical data of 1 – 6
1
2
3
4
5
6
Abs (T) [nm]
392
429
434
416
408
415
Abs (D) [nm]
395
427
432
415
410
408
Em (T) [nm]
455 (482)
484 (517)
511
486
477
467
Em (D) [nm]
455 (482)
488 (517)
540-570
504
512
473
Abs (PS) [nm]
391
464
434
413
411
405
Em (PS) [nm]
496
506
528
519
523
586
Exc (PS) [nm]
399
453/462
440
404
399
394/468
1.
This solvatochromism is accompanied by a reduction of the efficiency of the emission.
A reduction of the alkyl-OPV 1 is hardly possible; an irreversible wave appears at –2.11 V.
On the other hand sulfonyl groups on the central rings of OPVs 3 and 4 strongly facilitate the reduction.
Exchange of six alkyl versus six sulfonyl groups shifts both, the first oxidation and reduction steps, about 0.5 V to higher potentials.
This solvatochromism is accompanied by a reduction of the efficiency of the emission.
A reduction of the alkyl-OPV 1 is hardly possible; an irreversible wave appears at –2.11 V.
On the other hand sulfonyl groups on the central rings of OPVs 3 and 4 strongly facilitate the reduction.
Exchange of six alkyl versus six sulfonyl groups shifts both, the first oxidation and reduction steps, about 0.5 V to higher potentials.
Online since: September 2006
Authors: Woon Jae Jung, Jeong Min Kim, Ki Tae Kim, Joong Hwan Jun, Young-Kook Lee
a b c
25µµµµm
Figs. 1 and 2 represent the changes in optical microstructure for the Fe-23%Mn alloy with cooling
temperature and reduction in thickness, respectively.
Optical microstructures of Fe-23%Mn alloy subjected to cold rolling with (a) 2%, (b) 5% and (c) 15% reduction in thickness, respectively.
Change in ε martensite content with cooling temperature and reduction in thickness for Fe-23%Mn alloy.
TEM images of Fe-23%Mn alloy subjected to cold rolling with (a) 5% and (b) 15% reduction in thickness, respectively.
The hardness data and microstructural examinations reveal that the decay of damping over 57% of deformation-induced ε martensite would be associated with the decreased γ/ε interfaces by the coalescence of ε martensite plates in combination with the introduction of perfect dislocations, which play a role in suppressing the movement of damping sources such as stacking fault boundaries inside ε martensite, ε martensite variant boundaries and γ/ε interfaces.
Optical microstructures of Fe-23%Mn alloy subjected to cold rolling with (a) 2%, (b) 5% and (c) 15% reduction in thickness, respectively.
Change in ε martensite content with cooling temperature and reduction in thickness for Fe-23%Mn alloy.
TEM images of Fe-23%Mn alloy subjected to cold rolling with (a) 5% and (b) 15% reduction in thickness, respectively.
The hardness data and microstructural examinations reveal that the decay of damping over 57% of deformation-induced ε martensite would be associated with the decreased γ/ε interfaces by the coalescence of ε martensite plates in combination with the introduction of perfect dislocations, which play a role in suppressing the movement of damping sources such as stacking fault boundaries inside ε martensite, ε martensite variant boundaries and γ/ε interfaces.
Online since: October 2011
Authors: Qin Huan Yang, Chang Qing Zhao, Wu Yong Chen
Also, the aerobic activated sludge containing enriched SOB was immobilized and the kinetics for the sulfur conversion was studied with the immobilized aerobic sludge through treating sulfide (the reduction product of SO42-) in tannery wastewater.
lnv= lnk+ nlnC (3) Equation (2) was integrated and changed as: (4) or lnCtn - lnC0n = kt (5) Equation (5) was the same as: lnCtn = kt+lnC0n (6) When the initial sulfate concentration was 1000mg/L, the sulfate concentration changing with time and the related data were as shown in Table 1.
Table 1 The data of anaerobic reactor t (h) C (mg·L-1) ΔC (mg·L-1) Δt (h) lnc lnv 0 1000 6 688.12 -311.88 6 6.74 3.95 12 477.35 -210.77 6 6.37 3.56 18 380.13 -97.22 6 6.03 3.05 24 261.15 -118.98 6 5.91 2.73 30 199.22 -61.93 6 5.44 2.34 36 157.31 -41.91 6 5.18 1.95 Fig.1 lnv-lnc and its linear fitting in UASB Fig.2 lnC-t and its linear fitting in anaerobic reactor According to Table 1 and Equation (3), a straight line in Figure 1 was obtained by plotting lnv vs lnc.
Kinetics for aerobic reaction It will predict the capacity for the sulfur production if the steady-state dynamic model to produce sulfur from sulfide, the reduction product, in tannery wastewater is established with the contact oxidation pool which contains immobilized aerobic activated sludge.
Table 2 The data of aerobic reactor t (min) C (mg·L-1) ΔC (mg·L-1) Δt (min) lnc lnv 0 0 20 26.37 26.37 20 2.58 0.28 40 37.03 10.65 20 3.46 -0.63 60 43.70 6.68 20 3.66 -0.75 80 52.27 8.56 20 3.87 -0.85 Thus, the reaction dynamic equation for S0 conversion in tannery wastewater was gotten through the immobilized aerobic activated sludge containing enriched SOB: lnC =0.01109 t+3.09996.
lnv= lnk+ nlnC (3) Equation (2) was integrated and changed as: (4) or lnCtn - lnC0n = kt (5) Equation (5) was the same as: lnCtn = kt+lnC0n (6) When the initial sulfate concentration was 1000mg/L, the sulfate concentration changing with time and the related data were as shown in Table 1.
Table 1 The data of anaerobic reactor t (h) C (mg·L-1) ΔC (mg·L-1) Δt (h) lnc lnv 0 1000 6 688.12 -311.88 6 6.74 3.95 12 477.35 -210.77 6 6.37 3.56 18 380.13 -97.22 6 6.03 3.05 24 261.15 -118.98 6 5.91 2.73 30 199.22 -61.93 6 5.44 2.34 36 157.31 -41.91 6 5.18 1.95 Fig.1 lnv-lnc and its linear fitting in UASB Fig.2 lnC-t and its linear fitting in anaerobic reactor According to Table 1 and Equation (3), a straight line in Figure 1 was obtained by plotting lnv vs lnc.
Kinetics for aerobic reaction It will predict the capacity for the sulfur production if the steady-state dynamic model to produce sulfur from sulfide, the reduction product, in tannery wastewater is established with the contact oxidation pool which contains immobilized aerobic activated sludge.
Table 2 The data of aerobic reactor t (min) C (mg·L-1) ΔC (mg·L-1) Δt (min) lnc lnv 0 0 20 26.37 26.37 20 2.58 0.28 40 37.03 10.65 20 3.46 -0.63 60 43.70 6.68 20 3.66 -0.75 80 52.27 8.56 20 3.87 -0.85 Thus, the reaction dynamic equation for S0 conversion in tannery wastewater was gotten through the immobilized aerobic activated sludge containing enriched SOB: lnC =0.01109 t+3.09996.
Online since: August 2014
Authors: Paulo H. Iscold A. de Oliveira, Carlos A. Cimini, Antônio R. da Silva Filho, Leonardo De Paula S. Ferreira, Rodrigo A. Torres, Guilherme A. Santana
It is a six degree of freedom (6-DOF) model with linear aerodynamic derivatives determined via empirical data, flight tests and numerical simulation.
The engine and propeller dynamics are simulated in parallel with the manufacturer’s data.
The flight data was recorded and analyzed.
Moreover, the dispersion decreased from 1 g/s to 0.2 g/s, a reduction of 80%.
Tukey, in: Exploratory Data Analysis, published by Addison-Wesley (1977).
The engine and propeller dynamics are simulated in parallel with the manufacturer’s data.
The flight data was recorded and analyzed.
Moreover, the dispersion decreased from 1 g/s to 0.2 g/s, a reduction of 80%.
Tukey, in: Exploratory Data Analysis, published by Addison-Wesley (1977).
Online since: August 2014
Authors: Guillaume Geandier, Lilian Vautrot, Mickael Mourot, Moukrane Dehmas, Elisabeth Aeby-Gautier, Benoît Denand, Sabine Denis
These
data are used to follow phase fractions and mean cell parameters evolutions and stress evolutions in
each phase.
Data analysis Global analysis by Rietveld method.
Data have been corrected and reduced (2θ, intensity) patterns using fit2d software [9] (fig. 2).
In order to extract stresses in each phase from these data, we have to determine the 2θ position of one peak in each phase.
Given the amount of data to treat (about 800000 diffraction peaks for the case presented hereafter), we have developed an automatic procedure.
Data analysis Global analysis by Rietveld method.
Data have been corrected and reduced (2θ, intensity) patterns using fit2d software [9] (fig. 2).
In order to extract stresses in each phase from these data, we have to determine the 2θ position of one peak in each phase.
Given the amount of data to treat (about 800000 diffraction peaks for the case presented hereafter), we have developed an automatic procedure.
Online since: January 2018
Authors: Mayra Keroly Sales Monteiro, Francisco Klebson Gomes dos Santos, Ricardo Henrique de Lima Leite, Edna Maria Mendes Aroucha, Jussier Oliveira Vitoriano, Victor Rafael Leal Oliveira
The ion exchange held in the clay provokes on gelatin film a reduction of 65% in the water vapor permeability (WVP); a decrease in solubility of 55%; an increase of 35º in drop contact angle of water on the surface of the film; and 30% of raise in opacity.
Based on the above, this study aimed to promote the reduction of hydrophilicity of a gelatin film with sodium bentonite clay or modified by an ion exchange.
Data were collected in triplicate and analysis of statistical significance made according to Duncan method.
Conclusion By the analysis of the results of the films composed of gelatin and bentonite clay with or without ion exchange, it was observed a reduction in hydrophilicity in the gelatin films charged with clays.
Based on the above, this study aimed to promote the reduction of hydrophilicity of a gelatin film with sodium bentonite clay or modified by an ion exchange.
Data were collected in triplicate and analysis of statistical significance made according to Duncan method.
Conclusion By the analysis of the results of the films composed of gelatin and bentonite clay with or without ion exchange, it was observed a reduction in hydrophilicity in the gelatin films charged with clays.
Online since: August 2011
Authors: Janice M. Dulieu-Barton, S. Quinn, R.K. Fruehmann, W Wang
The full-field ΔT/T data is shown in Fig.2 for the 0.4 kN load amplitude for each debond length.
TSA data was obtained every 2000 cycles for 22000 cycles.
The data shown in Fig. 4 shows the results from the 6 mm debond length; only every other data set is presented for clarity.
Further, the results show that the data can indicate the severity of the damage.
Further work will be required to define a conclusive relationship between the TSA data and the failure load so that the data from the TSA can be related to the remnant strength of the sandwich structure.
TSA data was obtained every 2000 cycles for 22000 cycles.
The data shown in Fig. 4 shows the results from the 6 mm debond length; only every other data set is presented for clarity.
Further, the results show that the data can indicate the severity of the damage.
Further work will be required to define a conclusive relationship between the TSA data and the failure load so that the data from the TSA can be related to the remnant strength of the sandwich structure.
Online since: March 2014
Authors: Robert Boykett
Forensic results from a full teardown provide robust data that supplement design and service data to support safety assessments.
Performance measurements are being compared with original design specifications and forensic data can be compared with non-destructive inspection data.
Define end use(s) for data based on scope, resources, and schedule.
Archiving requires transferring this tag and any image data into the database. 3.
As part of iSCRAP, DSTO is developing efficient teardown techniques, including: rapid dismantling methods that do not destroy key information; performance measurements that enable comparison with design specifications; forensic data comparisons with NDI data; and efficient documentation and archiving for easy access to all data.
Performance measurements are being compared with original design specifications and forensic data can be compared with non-destructive inspection data.
Define end use(s) for data based on scope, resources, and schedule.
Archiving requires transferring this tag and any image data into the database. 3.
As part of iSCRAP, DSTO is developing efficient teardown techniques, including: rapid dismantling methods that do not destroy key information; performance measurements that enable comparison with design specifications; forensic data comparisons with NDI data; and efficient documentation and archiving for easy access to all data.