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< Page ,Total 317 >
Numerical prediction of fluid flow and heat transfer in a parallel plate channel with baffles EI CPCI-S Scopus
会议论文 | 1996 , 571-575 | Proceedings of the 1996 4th International Symposium on Heat Transfer, ISHT
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Abstract :

Periodically fully developed fluid flow and heat transfer in a two dimensional passages are numerically analyzed for constant property laminar flow. The passage is formed by two parallel plates with baffles positioned in the central' part of the passage. Both the plates are maintained at a constant temperature, while the baffles are perfectly conductive and adiabatic respectively. Computations are carried out for different geometric parameters, Reynolds numbers and Prandtl numbers. Moderate enhancement in the Nusselt number can be obtained at the cost of the pressure drop increasing greatly, compared with the corresponding values for a straight duct. The logarithmic average heat transfer coefficient; (<(Nu)over bar>), generally gets a raise with increasing Re, Pr and the height of baffles, and with decrease in the distance between baffles. Moreover, streamline patterns and local heat transfer performances are presented.

Keyword :

baffle heat transfer parallel plate channel laminar flow

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GB/T 7714 Fan, X. W. , Yin, J. M. , Chen, Z. Q. . Numerical prediction of fluid flow and heat transfer in a parallel plate channel with baffles [C] . 1996 : 571-575 .
MLA Fan, X. W. 等. "Numerical prediction of fluid flow and heat transfer in a parallel plate channel with baffles" . (1996) : 571-575 .
APA Fan, X. W. , Yin, J. M. , Chen, Z. Q. . Numerical prediction of fluid flow and heat transfer in a parallel plate channel with baffles . (1996) : 571-575 .
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Computing Gabor expansion coefficients by TH neural network EI CPCI-S Scopus
会议论文 | 1996 , 1389-1392 | Proceedings of the 1996 3rd International Conference on Signal Processing, ICSP'96. Part 1 (of 2)
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Abstract :

In this paper, it is proposed that the Gabor expansion coefficients of a period (or finite) discrete signal in both the critical sampling case and the oversampling case can be computed by TH neural networks. Theoretical analysis and simulations show that this network will certainly provide approximate solutions arbitrarily close to the accurate one within the time of the order of time constants of this network without any programming complexity.

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GB/T 7714 Meng, Hongying , Liu, Guizhong . Computing Gabor expansion coefficients by TH neural network [C] . 1996 : 1389-1392 .
MLA Meng, Hongying 等. "Computing Gabor expansion coefficients by TH neural network" . (1996) : 1389-1392 .
APA Meng, Hongying , Liu, Guizhong . Computing Gabor expansion coefficients by TH neural network . (1996) : 1389-1392 .
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Symbolic logic inference system based on recurrent multilayered perceptron neural networks EI CPCI-S Scopus
会议论文 | 1996 , 1144-1149 | Proceedings of the 1996 IEEE International Conference on Neural Networks, ICNN. Part 1 (of 4)
WoS CC Cited Count: 2
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Keyword :

recurrent neural networks symbolic logic inference

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GB/T 7714 Guoyin, Wang , Hongbao, Shi . Symbolic logic inference system based on recurrent multilayered perceptron neural networks [C] . 1996 : 1144-1149 .
MLA Guoyin, Wang 等. "Symbolic logic inference system based on recurrent multilayered perceptron neural networks" . (1996) : 1144-1149 .
APA Guoyin, Wang , Hongbao, Shi . Symbolic logic inference system based on recurrent multilayered perceptron neural networks . (1996) : 1144-1149 .
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The N-R method of acquiring multi-step reasoning production rules based on NN CPCI-S
会议论文 | 1996 , 1150-1155 | 1996 IEEE International Conference on Neural Networks (ICNN 96)
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Keyword :

inference production rules neural network acquisition machine learning

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GB/T 7714 Li, Y , Shi, HB . The N-R method of acquiring multi-step reasoning production rules based on NN [C] . 1996 : 1150-1155 .
MLA Li, Y 等. "The N-R method of acquiring multi-step reasoning production rules based on NN" . (1996) : 1150-1155 .
APA Li, Y , Shi, HB . The N-R method of acquiring multi-step reasoning production rules based on NN . (1996) : 1150-1155 .
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Biaxial path dependence of macroscopic response and microscopic dislocation substructure in type 302 stainless steel EI SCIE Scopus
期刊论文 | 1996 , 44 (8) , 3059-3067 | ACTA MATERIALIA
WoS CC Cited Count: 16
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Abstract :

During axial-torsional loading in type 302 stainless steel an obvious stress delay appears in comparison with the strain increment vector after the turning point of a strain path for all specimens. Macroscopic response shows that the equivalent stress suddenly drops then increases, firstly softening and subsequently hardening degrees are related to the turning angle values. The deformed dislocation configurations were defined by means of transmission electron microscopy. A tendency to form dislocation cells with the increase of nonproportionality and accumulated plastic strain is repeated. These macroscopic phenomena are explained based on the observation of microscopic dislocation structure and the analysis of maximum shear plane change during nonproportional loading. Finally, the evolution regularity of dislocation configuration with nonproportionality and accumulated plastic strain is discussed. Copyright (C) 1996 Acta Metallurgica Inc.

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GB/T 7714 Xiao, L , Kuang, ZB . Biaxial path dependence of macroscopic response and microscopic dislocation substructure in type 302 stainless steel [J]. | ACTA MATERIALIA , 1996 , 44 (8) : 3059-3067 .
MLA Xiao, L 等. "Biaxial path dependence of macroscopic response and microscopic dislocation substructure in type 302 stainless steel" . | ACTA MATERIALIA 44 . 8 (1996) : 3059-3067 .
APA Xiao, L , Kuang, ZB . Biaxial path dependence of macroscopic response and microscopic dislocation substructure in type 302 stainless steel . | ACTA MATERIALIA , 1996 , 44 (8) , 3059-3067 .
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Finite element approach of vibration control using self-sensing piezoelectric actuators EI SCIE Scopus
期刊论文 | 1996 , 60 (3) , 505-512 | COMPUTERS & STRUCTURES
WoS CC Cited Count: 40
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Abstract :

The general finite element formulations for piezoelectric sensors and actuators are derived by using the virtual work principle, and are verified mathematically and numerically. The amplitude-frequency and the phase-frequency charactersitics of the closed-loop system are studied in detail, and the control effects owing to the distributions of the segmented piezoelectric patches are also investigated. Several numerical results are presented. Copyright (C) 1996 Elsevier Science Ltd

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GB/T 7714 Chen, CQ , Wang, XM , Shen, YP . Finite element approach of vibration control using self-sensing piezoelectric actuators [J]. | COMPUTERS & STRUCTURES , 1996 , 60 (3) : 505-512 .
MLA Chen, CQ 等. "Finite element approach of vibration control using self-sensing piezoelectric actuators" . | COMPUTERS & STRUCTURES 60 . 3 (1996) : 505-512 .
APA Chen, CQ , Wang, XM , Shen, YP . Finite element approach of vibration control using self-sensing piezoelectric actuators . | COMPUTERS & STRUCTURES , 1996 , 60 (3) , 505-512 .
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Dual space optimisation method for extracting the natural frequencies of a radar target SCIE
期刊论文 | 1996 , 143 (4) , 286-288 | IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION
WoS CC Cited Count: 1
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Abstract :

A dual space optimisation method (DSO) for extracting the natural frequencies of a radar target is presented. The method is based on the dual space optimisation theory. Methods such as the Prony method, the improved Prony method and the E-pulse method appear to he special cases of it. A new algorithm is also derived from the DSO method.

Keyword :

radar cross-sections target identification

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GB/T 7714 Li, J , Zhu, XY , Wang, WB et al. Dual space optimisation method for extracting the natural frequencies of a radar target [J]. | IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION , 1996 , 143 (4) : 286-288 .
MLA Li, J et al. "Dual space optimisation method for extracting the natural frequencies of a radar target" . | IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION 143 . 4 (1996) : 286-288 .
APA Li, J , Zhu, XY , Wang, WB , Jen, L . Dual space optimisation method for extracting the natural frequencies of a radar target . | IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION , 1996 , 143 (4) , 286-288 .
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A new multi-fermion realization of SUq(2) and its application to the Lipkin-Meshkov-Glick model SCIE Scopus
期刊论文 | 1996 , 29 (15) , 4641-4648 | JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
WoS CC Cited Count: 1
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Abstract :

A new multi-fermion realization of SUq(2) is built, whose generators have been written as functions of operators of su(2) algebra. With the help of the realization, the influence of the q-deformation of su(2) algebra on the excitation spectrum and the ground state properties of the Lipkin-Meshkov-Glick model can easily be understood. It is also shown that the variation approach on the basis of the usual su(2) coherent state still works well for the q-deformed model.

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GB/T 7714 Li, FL , Zhang, SL , Huang, Q . A new multi-fermion realization of SUq(2) and its application to the Lipkin-Meshkov-Glick model [J]. | JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL , 1996 , 29 (15) : 4641-4648 .
MLA Li, FL et al. "A new multi-fermion realization of SUq(2) and its application to the Lipkin-Meshkov-Glick model" . | JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL 29 . 15 (1996) : 4641-4648 .
APA Li, FL , Zhang, SL , Huang, Q . A new multi-fermion realization of SUq(2) and its application to the Lipkin-Meshkov-Glick model . | JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL , 1996 , 29 (15) , 4641-4648 .
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Automatic analysis technique of spatial carrier-fringe patterns EI SCIE Scopus
期刊论文 | 1996 , 25 (2-3) , 111-120 | OPTICS AND LASERS IN ENGINEERING
WoS CC Cited Count: 4
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Abstract :

This paper gives a systematic description of phase demodulation method of spatial carrier-fringe patterns, and compares some phase demodulation methods in view of filtering. The error and distortionless range of the demodulated phase are also discussed when the carrier fringes are sinusoidal or nonsinusoidal. Finally, a new phase-locked demodulation method is proposed and its mathematical model is derived. Experimental results show that this is a precise and rapid method.

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GB/T 7714 Chen, WY , Tan, YS , Zhao, H . Automatic analysis technique of spatial carrier-fringe patterns [J]. | OPTICS AND LASERS IN ENGINEERING , 1996 , 25 (2-3) : 111-120 .
MLA Chen, WY et al. "Automatic analysis technique of spatial carrier-fringe patterns" . | OPTICS AND LASERS IN ENGINEERING 25 . 2-3 (1996) : 111-120 .
APA Chen, WY , Tan, YS , Zhao, H . Automatic analysis technique of spatial carrier-fringe patterns . | OPTICS AND LASERS IN ENGINEERING , 1996 , 25 (2-3) , 111-120 .
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Experimental investigation of fatigue behaviour for welded joint with mechanical heterogeneity EI SCIE Scopus
期刊论文 | 1996 , 67 (3) , 229-242 | INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
WoS CC Cited Count: 26
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Abstract :

Because of material and mechanical heterogeneity in welded joints, experimental studies of low-cycle fatigue (LCF) life and fatigue crack initiation behaviour were performed on weld metal, heat-affected zone (HAZ) and base metal of 16 MnR pressure vessel steel. A fatigue damage test was carried out by introducing a new damage variable. The fatigue damage evolution laws in each zone of a welded joint were obtained. A circular-notched compact tension specimen was designed and the whole process of fatigue damage, crack initiation and crack growth in each zone was investigated. The effect of mechanical heterogeneity in welded joints on the fatigue damage behaviour and fatigue crack initiation life was also investigated. The experimental and theoretical results indicate that the fatigue behaviour is markedly different in three zones of welded joints; there is a trend toward reduction in the fatigue life of HAZ as compared with the base metal. The weld metal does not have the same fatigue behaviour as confirmed by LCF life and crack growth rate. This study leads to the conclusion that fairly accurate estimates of fatigue life for welded joints should include the whole process of fatigue damage evolution and fatigue crack initiation as well as crack growth. Furthermore, a local experimental method should be carried out for weld metal, HAZ and base metal, respectively. Finally, the local fatigue failure criterion based on the weakest chain model has been presented.

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GB/T 7714 Cheng, GX , Kuang, ZB , Lou, ZW et al. Experimental investigation of fatigue behaviour for welded joint with mechanical heterogeneity [J]. | INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING , 1996 , 67 (3) : 229-242 .
MLA Cheng, GX et al. "Experimental investigation of fatigue behaviour for welded joint with mechanical heterogeneity" . | INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING 67 . 3 (1996) : 229-242 .
APA Cheng, GX , Kuang, ZB , Lou, ZW , Li, H . Experimental investigation of fatigue behaviour for welded joint with mechanical heterogeneity . | INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING , 1996 , 67 (3) , 229-242 .
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