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J. Comput. Sci. Eng. Vol.
8 (2013)
287-313 |
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A Study on the Extent of Downstep for High-Low Tones in Chinese
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Maolin Wang, Hua Wu, Guangling Zi and Ziyu Xiong
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J. Comput. Sci. Eng.
8 (2013) 287-293
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September 10, 2013 |
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Abstract:In this study, the downstep principle in Chinese tone production is analyzed, and it is found that downstep exists for high (H)tones. They always drop to a lower scale compared to the forgoing ones. The degree of the first downstep is always larger than the following ones, but there are no
differences in the degrees of downsteps for the later HL sequences. The speaker does not only raise the initial H tone when there are more downsteps, but also depress
the final H tone. |
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Keywords:
Downstep, Tone, Pitch.
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Electro Optic Methods in Intra-body Communication System
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Jian Li, Shuang Zhang, Peng Un Mak, Sio Hang Pun
and Mang I Vai
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J. Comput. Sci. Eng. 8 (2013) 294-299 ！ Published September
10, 2013
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Abstract:Intra-body
communication is proposed by Zimmerman in 1995 and the
galvanic coupling has been observed to be the best
method for data transmission. With the increasing
transmission requirements and the development of optical
fiber communication, a high speed system is possible to
be designed based on the Electro optic methods. In this
paper, the characteristics of the intra-body
communication system are introduced. Principles and
structures of optic modulation for intra-body
communication are reviewed. Internal and external
modulation methods are introduced and discussed. A
system of the electro optic modulation is recommended
and discussed. |
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Keywords:Intra-body
Communication, Biomedical sensor, photoelectric coupling,
electrooptic sensor. :
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Broadband Constraint Based Simulated Annealing Impedance Inversion
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Guangxuan Chen, Yanhui Du, Panke Qin and Lei Zhang
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J. Comput. Sci. Eng. 8 (2013) 300-304 ！ Published September
10, 2013
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Abstract:In order to enhance the accuracy and improved the resolution of the inversion result in gas hydrate exploration, this paper proposed a new inversion method.
By introducing broadband constraint based simulated annealing impedance inversion, the new method allows for a more extensive search for the optimal solution and
is more efficient than exhaustive enumeration in solving global optimization problems. Compared to other inversion solutions as constraint sparse spike inversion and
model based inversion, the new method not only solved the global optimization problems, but also improved the resolution of the profiles and enhanced the inversion
accuracy, which is helpful to the later interpretation.
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Keywords:Broadband constraint, Global optimization, Impedance inversion, Simulated annealing.
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CSE-PDF |
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Comparison of Finite Difference and Finite Volume Method Basd on MAC for Numerical Simulation of Driven Cavity Flow
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Jiangfei Li, Long Jin, Lian Yuan, Bo Li, Zhizhong Fu and Changchun
Wu
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J. Comput. Sci. Eng. 8 (2013) 305-309 ！ Published September
10, 2013
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Abstract:This paper briefly presents the history of development of the TRIZ namely the Theory of the Solution of Inventive Problems, introduces the current situation
of the theoretical research and the application of the TRIZ, and propounds the emphasis and direction of the research and application of the TRIZ in China, which will
contribute to the enhance the efficiency and benefits in Computer Aided Manufacturing. |
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Keywords:MAC Method,
Staggered grid, Finite difference, Finite volume,
Driven cavity flow. :
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Design and Realization of ActiveMQ Based High Performance Message Cluster
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Guangxuan Chen, Yanhui Du, Panke Qin and Lei Zhang
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J. Comput. Sci. Eng. 8 (2013) 310-313 ！ Published September
10, 2013
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Abstract:In order to solve the performance bottleneck problems and enhance the reliability of the message cluster, this paper proposed a new solution. By introducing
ActiveMQ component and message agent, the message cluster can extend the single middleware into the message middleware environment, and thus improved the
availability of the data in the shared file system and database. Meanwhile, a new algorithm and mechanism of load balancing, data synchronization and fault recovery
are introduced into the message cluster that greatly enhanced the performance and reliability of the cluster. |
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Keywords:ActiveMQ,
Data synchronization, Fault recovery, Load balancing,
Message cluster. :
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！！ from ACSS |
