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Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper introduces the conventional treatment methods of agriculture wastewater, including chemical methods and biological methods. These methods have problems of low efficiency, secondary pollution and high cost. Based on the significant advantages of microalgae purification of wastewater that can achieve pollutant removal and wastewater resource utilization, the current research status of microalgae purification of agriculture wastewater is described, and the problems of microalgae purification of agriculture wastewater are presented with respect to the current research. In view of these problems, suggestions are given to solve the problems of microalgae purification of agriculture wastewater, which provide a reference for the future use of microalgae to purify agriculture wastewater. [ABSTRACT FROM AUTHOR]

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to solve the problems of the current art circulation information is not transparent and the centralized trading authority is asymmetric, this paper proposed a art blockchain certificate traceability model based on three chains. First, in view of the large amount of data in a single piece of artwork information, this paper proposed a blockchain-based symmetric searchable encryption algorithm, and used the interplanetary file system to securely store artwork circulation records on-chain and off-chain. Secondly, for the characteristics of the increasing effective data of artwork information, this paper proposed a blockchain-based inverted fast query and traceability algorithm to help data users realize fast traceability and positioning. At the same time, this paper proposed for the first time that the false information alliance chain stores false art circulation records to realize the processing of false information. Finally, experiments verify the feasibility of the model for big data security storage and fast query traceability. Experiments show that the model is feasible and the query method is efficient. [ABSTRACT FROM AUTHOR]

This paper proposed an electronic voting scheme based on one-time ring signature and blockchain to solve the problems of the current e-voting system in terms of anonymity, transparency and open vote-counting. This paper introduced one-time ring signature, blockchain and stealth address technology. The one-time ring signature technology solved the problem of voter anonymity, repeated voting and public verification. The blockchain technology could ensure the openness and transparency of the e-voting system. The one-time ring signature technology could ensure no one or institution could obtain the voting intermediate result before the voting ends. In order to improve the efficiency of vote-counting,it used the method of key sharing to improve the vote-counting algorithm. Through security and performance analysis, the scheme conforms to the basic security standards of an electronic voting system. [ABSTRACT FROM AUTHOR]

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to solve the problem of wireless interference faced by existing metro lines using WLAN scheme, this paper proposes a train-ground communication redundancy scheme based on PRP. Wireless links of different standards are introduced to make the single network information of signal train-ground communication transmitted through redundant channels, so as to improve the reliability of train-ground communication in signal system. The scheme has been tested and verified in the laboratory and on-site on metro lines. In this paper, the test results are compared and analyzed, and the application scenario of PRP scheme in signal system is prospected. [ABSTRACT FROM AUTHOR]

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Liquid Crystal & Displays is the property of Chinese Journal of Liquid Crystal & Displays and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the railway construction process, there are such problems as limited means of train positioning, lack of information exchange and multi-party joint control, and poor eff ect of personal safety protection. To solve these problems, this paper proposes a railway construction protection system, which builds on high-precision positioning using the Beidou system, and utilizes such technologies as 4G communication and secondary radar communication, to achieve train location tracking and train approach early warning. In terms of train approach early warning, the proposed system utilizes the multiple-redundancy early warning technology, which combines secondary radar projection with Beidou system projection for early warning. The multiple-redundancy early warning technology enables the detection of train approach in the construction area and the subsequent generation of early warning information even when only one early warning mechanism is effective due to such reason as the presence of tunnels, which ensures the reliability of system functions. [ABSTRACT FROM AUTHOR]

If there are trains with the same train number in the CTC system, the wireless route notice may be sent to a wrong train, which will cause confusion to the driver. To solve this problem, this paper proposes a solution to improve the wireless route notice transmission by the CTC system in GSM-R network covered sections. The proposed solution obtains the locomotive or EMU operation plan from the locomotive or EMU dispatching system through the CTC system. Then, it determines the leading locomotive's locomotive number or the EMU's train set number after matching with the actually received wireless train number information, to ensure that the CTC system sends the wireless route notice to the correct train. Thus, it can effectively prevent the incorrect transmission of wireless route notice by the CTC system without changing the wireless route notice transmission logic in the CTC system. [ABSTRACT FROM AUTHOR]

This paper intends to solve the problems of cumbersome modification of station data in the traditional interlocking table structure and low efficiency in route search based on interlocking table, and to improve the convenience of data storage in the interlocking system and the efficiency of station route search. It presents a station model using an adjacency list structure, and on this basis, a new route search model using an improved depth first search algorithm. The proposed station model based on adjacency list can reduce the difficulty of station data maintenance, and improve the efficiency of route search when used together with an improved depth first search algorithm. [ABSTRACT FROM AUTHOR]