Notice of Retraction Research on conversion technology of abstract logic structure diagram to implementation diagram

Author(s):  
Lirui Yao ◽  
Jianbin Liu
2013 ◽  
Vol 791-793 ◽  
pp. 1450-1453
Author(s):  
Hong Bo Zhou

Different databases have different structure,how to co-share those heterogeneous database is becoming a challenge to all of us.The current database integration methods is more and more complex, operability is not very strong, the author proposes an XML interchange file to achieve the integration of heterogeneous database program.The system logic structure diagram is given in this paper,major function modules and structure are introduced in detail combined with graphic, and finally the characteristics of the system is summarized.


2016 ◽  
Vol 136 (10) ◽  
pp. 769-772 ◽  
Author(s):  
Toru Sasaki ◽  
Nobuhiro Harada ◽  
Takashi Kikuchi ◽  
Kazumasa Takahashi

2020 ◽  
Vol 16 (6) ◽  
pp. 1101-1113
Author(s):  
M.Sh. Gutuev ◽  
B.Sh. Ibragimova

Subject. The article discusses the availability of technological equipment in the agriculture of the Republic of Dagestan. Objectives. We analyze the current situation and trends in the development of available technological equipment in the republican agriculture, identify the role and place of machine and tractor fleet in the retrofitting of the regional agriculture. Methods. The study is based on monographic, abstract logic, statistical, analytical methods. Results. Dagestan has got a critically few technological equipment, which affects the development of the regional agricultural sector. The availability of technological equipment is found to have dramatically reduced in animal husbandry for the recent 30 years. The availability of technological equipment and land cultivation strongly correlates, thus simplifying applicable agricultural technologies. Most agricultural producers of Dagestan were found to be unable to participate in the program for federal agricultural lease. Conclusions and Relevance. The deterioration of available technological equipment in agriculture is a key cause undermining the competitiveness of products and efficiency of the regional agriculture. We prove the importance of governmental actions incentivizing the influx of new technological equipment, including a set of measures reinforcing the availability of technological equipment. As long as most agricultural producers are microbusinesses that lack resources to participate in many machine renovation programs, funding should be increased substantially to subsidize a portion of equipment acquisition costs incurred by agricultural producers, and a portion of reimbursed costs as much as at least 50 percent of the value of agricultural machines acquired.


2007 ◽  
Vol 158 (3-4) ◽  
pp. 65-69 ◽  
Author(s):  
Julien-François Gerber ◽  
Rolf Steppacher

This article proposes a new way of looking at social conflicts relating to industrial tree plantations by arguing that such conflicts reflect the struggle between two distinct institutional logics, i.e., property versus possession. The abstract logic of property, enhanced by credit relations and the minimization of costs, stimulates commercial plantations and tends to be detrimental to the environment. By contrast, the concrete logic of possession forces local communities to take account of complex local social and ecological interactions, and thereby encourages a sustainable use of the forest.


Author(s):  
Zhengwang Xu ◽  
Guozhuang Jiang ◽  
Ke Kun ◽  
Yuchun Yi

Background: The output voltage frequency for the previously proposed "phase hopping" AC-AC frequency conversion technology is determined by the law that the number of output voltage cycles is reduced by one relative to the power frequency in a large cycle containing six jumps. According to the law, only a limited number of output frequencies, such as 37.5 Hz, 42.86 Hz and 45 Hz are found. Due to the large spacing between the output frequencies, the "phase hopping" frequency conversion technology is difficult to put into practical use. Methods: In this paper, the law of the output frequency control is generalized so that the number of output cycles in a large cycle is reduced by n relative to the power frequency. The analysis shows that the appropriate selection of large cycles, including the number of power frequency cycles and the value of n, can find more frequencies to be used. Reducing the interval between the output frequencies within 1Hz. Results: The analysis results were verified in simulation by MATLAB, and the harmonics and the feasibility of the actual application were analyzed. Conclusion: Finally, an experimental platform was built and an experimental analysis was carried out. The experimental results show that the theoretical and simulation analyses are correct.


2021 ◽  
Vol 188 ◽  
pp. 116627
Author(s):  
Ahmad Abu-Heiba ◽  
Kyle R. Gluesenkamp ◽  
Timothy J. LaClair ◽  
Praveen Cheekatamarla ◽  
Jeffrey D. Munk ◽  
...  

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