Journal of Computational Science & Engineering

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ISSN 1710-4068                ACSS home     Journal's home     

    J. Comput. Sci. Eng.  Vol. 15 (2014) 519-545
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The Construction Research of Inventory Portfolio Pledge Rate Model

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Siyuan Li, Tianyang Gao and Qilei Liu

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J. Comput. Sci. Eng. 15 (2014) 519-524 ¡ªPublished December 22, 2014 ¡¡ ¡¡
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Abstract: In this paper, Li2CoSiO4 with a space group of Pmn21 that was synthesized by hydrothermal route at 160 ¡æ. A series of Li2CoSiO4 with different structures produced after the as-prepared sample calcined at different temperatures (400, 600 and 800 ¡æ). Based on the results from electrochemical impedance spectroscopy, as it is well known that Li2CoSiO4 obtained at 800 ¡æ shows the best dynamic properties among four samples. Furthermore, the reversible discharge capacity of 201.5 mAh/g can be delivered in this compound, which is higher than that released by other samples. Therefore, Li2CoSiO4 prepared at 800 ¡æ is a potential cathode candidate for lithium-ion batteries.

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Keywords: Hydrothermal method; Li2CoSiO4; Heat-treatment; Electrochemical analysis; Charge discharge efficiency.

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Research about College Students' Reading Pattern in Mobile Internet Era

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Lina Gao

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J. Comput. Sci. Eng. 15 (2014) 525-529  ¡ª Published December 22, 2014

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Abstract: In the investigation and study about the mobile reading, data is nearly obtained from questionnaire, and combined with statistical analysis tools such as SPSS to obtain data for further sorting, analysis and induction, we can get meaningful conclusions. The new reading mode based on the mobile Internet and mobile terminal has become an important part of college students' future reading behavior. Studying the status quo of college students' mobile reading, effectively using the advantages and avoiding disadvantages are our current work which needs to solve to develop reading service and guide. In this paper it will analyze the driving factors produced by the college students' mobile reading behavior. And then it briefly introduces two methods of mobile reading, which aimed at providing the reference for the college students' reading mode on the mobile Internet for further research.
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Keywords:Mobile reading; Mobile reading behavior; Reading mode.

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Grade Research on Engineering Standardization of Community Project Site Information Systems

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Xin Xu, Fang Li and Tao Lin 

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J. Comput. Sci. Eng. 15 (2014) 530-538  ¡ª Published December 22, 2014

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Abstract: Three-dimensional site model constitute the infrastructure of digital city, and provides support for virtual construction simulation. This paper comprehensive discussed the architecture of information systems, standardized design and standardized management, spatial positioning information, classification and coding, data structures and exchange formats, hardware and software environment, data quality control, system implementation and maintenance, system security and confidentiality. Those technical advices can effectively promote the combination of project management and community administration.
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Keywords: Project sites; Information systems; Standardization.

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Research about College Students' Mobile Reading Behavior in New Media Era

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Lei Xue

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J. Comput. Sci. Eng. 15 (2014) 539-542  ¡ª Published December 22, 2014

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Abstract: Reading is an important means to know the world, the development and continuing civilization for human. Reading object changes with the change of language carrier. New media is a new media form under the technical support system. With the advent of the new media era, network media, e-book, mobile phones and other new media based on the Internet appeared and profoundly changed the way of reading, and they triggered reading a fundamental change. The way of reading all the way is changing from the stupid media era, paper media era, and electronic media era to new media age. Where we provide 100 questionnaires, and 99 questionnaires have been taken back. Through reading questionnaire survey of students, we analyze the way to acquire knowledge by reading for college students in the era of new media and study how to improve the thinking and countermeasures of college students' reading ability. It can be seen that it will have a very important significance.
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Keywords: New media; Questionnaire survey; College students.

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Study of the Dynamics Characteristic on Pupils Walk with Heelys

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Qiner Qiu and Siyuan Li

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J. Comput. Sci. Eng. 15 (2014) 543-545 ¡ª Published December 22, 2014

¡¡ Abstract: To study the dynamics characteristics of primary school boys with Heelys. To analyze three different gaits of fifteen primary school boys walking with sneakers , closed-wheel Heelys (CWH) and open-wheel Heelys (OWH) using the German Novel Pedar-x plantar pressure test system. It showed that plantar pressure, peak pressure and impulse all increased gradually on forefoot area, they became smaller on midfoot and rearfoot with the increasing of heel height. Then the dynamics index existed significant differences (P£¼0.05) when pupils wore sneakers, CWH and OWH. It was suggested that pupils did not wear Heelys so long.
¡¡ Keywords:Heelys; Sneakers; Dynamics characteristics.

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