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Online since: September 2013
Authors: Xiao Song, Peng Zhao
The enhancement on the extraction process caused by microwave is attributed to the disruption of the cell walls, reduction of the particle size and the enhancement on the mass transfer of the cell content to the solvent caused by the collapse of the bubbles produced by cavitations.
Multiple regression analysis of the experimental data yielded the following second-order polynomial stepwise equation: Y=11.19+0.26x1+0.32x2+0.61x3-0.02x1x2+2.5×10-3x1x3-0.012x2x3-0.42x12-0.39x22-0.72x32 (2) An analysis of variance (ANOVA) procedure was used to analyze the model for significance and suitability, and a statistical summary was given in Table 2.
Multiple regression analysis of the experimental data yielded the following second-order polynomial stepwise equation: Y=11.19+0.26x1+0.32x2+0.61x3-0.02x1x2+2.5×10-3x1x3-0.012x2x3-0.42x12-0.39x22-0.72x32 (2) An analysis of variance (ANOVA) procedure was used to analyze the model for significance and suitability, and a statistical summary was given in Table 2.
Online since: July 2008
Authors: Emad A. Badawi, M.A. Abdel-Rahman, M.S. Abdallah, N.M. Hassan
For example, the spectrum curves for the
mean lifetime of positron changes as a function of the sample deformation or
annealed temperature; [2-5] advantages of these methods in obtaining both qualitative
and quantitative data on behaviour are pointed out.
In the second region (II) between 575-650 K, a huge decrease in the value of occurs, which attributed to the annealing of dislocations introduced during the deformation. 3.2 Isothermal annealing measurements Samples of 2024 alloy were deformed to 25 % thickness reduction, and consecutively subject to isothermal annealing.
In the second region (II) between 575-650 K, a huge decrease in the value of occurs, which attributed to the annealing of dislocations introduced during the deformation. 3.2 Isothermal annealing measurements Samples of 2024 alloy were deformed to 25 % thickness reduction, and consecutively subject to isothermal annealing.
Online since: April 2012
Authors: Karine Kenis, Martine Claes, Rita Vos, Gavin Simpson, Masayuki Wada, Paul W. Mertens, Roger Sonnemans, Sandip Halder, Prasanna Dighe, Sanda Radovanovic
Also, the approximate time required for the solvent strip can be optimized based on the haze data.
Using this method it is demonstrated that a two step resist strip process is beneficial in terms of damage reduction and optimized process conditions can be identified in an effective manner.
Using this method it is demonstrated that a two step resist strip process is beneficial in terms of damage reduction and optimized process conditions can be identified in an effective manner.
Online since: October 2011
Authors: Min Chin Lee, Zth Ru Yang, Zth Jing Hu
However, using such a folded structure will cause a reduction of the ICMR dynamic range due to a substantial increase in folded MOS transistors operating at voltages VDD to VSS.
As shown in figure 4, blue, red and purple lines represent the measurement data at 0, 1.5 and 3.3 V and we can derive the corresponding maximum DC gain of 80 dB, 84 dB and 80 dB, respectively.
As shown in figure 4, blue, red and purple lines represent the measurement data at 0, 1.5 and 3.3 V and we can derive the corresponding maximum DC gain of 80 dB, 84 dB and 80 dB, respectively.
Online since: December 2010
Authors: Liang Cui, Yan Hua Wang, Qing Zhi Yan, Zhan Zhang
Optimization process is divided into data abstraction module, initialization module, preprocessing module, solving module, post-processing module, optimization module and output module [3].
Fig. 4 change law of h Fig. 5 change law of b Fig. 6 change law of d1 Fig. 7 change law of t1 Fig. 8 change law of wt Fig. 9 change law of t Conclusion 1) The calculated optimized design variables have different degrees of reduction, and the entire weight of jacket platforms are optimized to make it more economic. 2) It is effective and useful that ANSYS-based structural optimization in solving design problems, especially in the large and complex optimization problem of the offshore platform structure,it has irreplaceable advantages.
Fig. 4 change law of h Fig. 5 change law of b Fig. 6 change law of d1 Fig. 7 change law of t1 Fig. 8 change law of wt Fig. 9 change law of t Conclusion 1) The calculated optimized design variables have different degrees of reduction, and the entire weight of jacket platforms are optimized to make it more economic. 2) It is effective and useful that ANSYS-based structural optimization in solving design problems, especially in the large and complex optimization problem of the offshore platform structure,it has irreplaceable advantages.
Online since: September 2006
Authors: T. Kosaka, Y. Kogo, K. Miyahara, N. Igata, T. Morizumi, H. Isono, K. Yamagami
Table 2 Mechanical properties of HIDAS
Yield strength Tensile strength Elongation Reduction of area
1316MPa 1440MPa 12% 59%
Hardness and its temperature dependence are shown in Fig.4.
Preliminary data shows that the endurance limit is around 550MPa.
Preliminary data shows that the endurance limit is around 550MPa.
Online since: September 2011
Authors: Zhi Hua Nie, Wen Hai Luo
Related coefficients were show as following table, which was coefficient of structural importance, was steel resistance subentry coefficient , which was also equal to from LRFD-2001, was steel resistance reduction coefficient, which was equal to 0.9 when the component was axial pulled component without perforation, and was equal to 1 when the component was axial compressed component.
Table 1 The value of parameter of load from steel structural design codes between China and America Design code Components level Coefficient of structural importance Load subentry coefficient Steel resistance subentry coefficient Constant loads subentry coefficient Living loads subentry coefficient GB50017-2003 Level I 1.1 1.35(constant loads leading) 1.4 1.087(Q235) 1.111(Q345) 1.2(living loads leading) Level II 1.0 1.35(constant loads leading) 1.4 1.2(living loads leading) LRFD-2001 1.0 1.2 1.6 Research of steel structure reliability comparison Reliabilities of steel structures from which axial forced components were chosen Q235 and Q345 were computed by the design methods from Chinese and American design codes, and the reliable index were computed by the JC method, the analysis data was fitted by the datafit from MATLAB, at the end the results were shown in Fig. 1 to Fig. 8.
Table 1 The value of parameter of load from steel structural design codes between China and America Design code Components level Coefficient of structural importance Load subentry coefficient Steel resistance subentry coefficient Constant loads subentry coefficient Living loads subentry coefficient GB50017-2003 Level I 1.1 1.35(constant loads leading) 1.4 1.087(Q235) 1.111(Q345) 1.2(living loads leading) Level II 1.0 1.35(constant loads leading) 1.4 1.2(living loads leading) LRFD-2001 1.0 1.2 1.6 Research of steel structure reliability comparison Reliabilities of steel structures from which axial forced components were chosen Q235 and Q345 were computed by the design methods from Chinese and American design codes, and the reliable index were computed by the JC method, the analysis data was fitted by the datafit from MATLAB, at the end the results were shown in Fig. 1 to Fig. 8.
Online since: November 2012
Authors: Chao Yu, Xiao Lan Huang
Through one series of experimental data, their values (A and m) are determined as A=1.12×10-8, m=3.8 for salt rock and A=5.0×10-10, m=4.5 for mudstone
When the number of hard interlayers is increased, deformation around the cavity has the reduce trend: there are apparent reduction in Fig.6 (c) compared with (a).
When the number of hard interlayers is increased, deformation around the cavity has the reduce trend: there are apparent reduction in Fig.6 (c) compared with (a).
Online since: October 2014
Authors: Zhi Lu
Shortwave leakage communication guide and transmit signals by means of leaky coaxial cable, in order to maximize the reduction of loss of signal transmission, the leaky signals need to be determined in the extent of shortwave and ultra short wave.
Second, design the wireless transceiver modules rationally, thereby ensuring effective data communication between every wireless sensor nodes, thus avoiding the manual routing, which greatly improves the efficiency of communication operations, making it convenient and simple.
Second, design the wireless transceiver modules rationally, thereby ensuring effective data communication between every wireless sensor nodes, thus avoiding the manual routing, which greatly improves the efficiency of communication operations, making it convenient and simple.