Journal of Computational Science & Engineering

 

 

 

 

 

ISSN 1710-4068                ACSS home     Journal's home     

    J. Comput. Sci. Eng.  Vol. 32 (2017) 893-908
 

Porous Carbon Derived From Pomelo Peels as Substrate for High Performance Lithium-Sulfur Batteries

 
 

Min Liu, Heliang Zhou, Hongliang Li

   
J. Comput. Sci. Eng. 32 (2017) 893-895Published  September 25, 2017    
 

Abstract:  Porous carbon (PC) hasbeen obtainedby carbonizingthe natural pomelo peels and following a activation with KOH. Elemental sulfur has beenloaded to the micropores to form S/PC composite using a high pressure induced one-step impregnation technique. The resulted S/PC composite with a 60% sulfur loading has been used as cathodes for Li-S battery. The S/PC composite displayed an initial discharge capacity of 1281mAh g-1, excellent rate capability of 300 mAh g-1 at 2 C and good cycling stability of 771mAh g-1 after 100 cycles at 0.2C.

   
Keywords: Carbonization; Pomelo peels; KOH; Lithium-sulfur battery.

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The Evaluation of Comprehensive Competitiveness of the Jinjialing Financial District

 
 

Lin Xing, Xinmin Li

   
J. Comput. Sci. Eng. 32 (2017) 896-900Published  September 25, 2017    
 

Abstract:  Based on the research method of constructing evaluation system, this paper constructs the competitiveness evaluation system including three aspects of finance, talent and environment. In order to evaluate the comprehensive competitiveness of Jinjialing Financial District, we choose six financial center, such as Qingdao JinjiaLing Financial District, Beijing Financial Street, Shanghai Lujiazui Financial District, Shenzhen International Financial Center, Chongqing Jiangbeizui Financial District and Hangzhou Financial Center. By variable Screening, six influencing factors of financial competitiveness are selected as covariant for analysis of covariance (ANCOVA). The analysis results show that the comprehensive competitiveness of Jinjialing financial district is relatively weak, and some suggestions are given.

   
Keywords: Jinjialing Financial District; comprehensive competitiveness; ANCOVA.

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The construction of network model for industrial linkage of IT industry on the campbell theory

 
 

Yuanyuan Lv, Peixue Liu, Xu Zhang

   
J. Comput. Sci. Eng. 32 (2017) 901-904Published  October 25, 2017    
 

Abstract: Now the temperature detection system has been applied to variousindustries. The development of cheap, wide application range, high precision of temperature measurement becomes very important. This study selected STC89C52 MCU as the main control device, DS18B20 is used as temperature sensor, nRF905 wireless transceiver module, using LCD12864 as the implementation of a display device. Bus multi-point temperature measurement cable is connected with a plurality of DS18B20. It can through the nRF905 wireless module to realize wireless temperature measurement. When the temperature exceeds the limit, the corresponding indicator light channels, at the same time the alarm buzzer. This design achieves better performance of human-computer interaction.Temperature measurement applications can be widely used in the factory.

   
Keywords: NRF905 wireless module; STC89C52 microcontroller; DS18B20 sensor.

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Analysis on the present situation and education countermeasures of college students' network information ethics

 
 

Weihua Zhao, Ruijuan Zhao

   
J. Comput. Sci. Eng. 32 (2017) 905-908Published  October 25, 2017    
 

Abstract:  Based on the investigation of the current situation of information ethics of college students, this paper finds out the phenomenon of College Students' Network Information Ethics Anomie, and analyzes the reasons, and puts forward the corresponding educational countermeasures.

   
Keywords: College students; Information ethics; Information anomie.

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