Quantitative research on the efficiency of ancient information transmission system: A case study of Wenzhou in the Ming Dynasty

In ancient China, an unobstructed, convenient and efficient transmission system nationwide was established for long-distance transmission of information. The transmission system works to different degrees in different regions, which is an important index to measure the interregional information level. Yet, some minor differences, may not be easily sensed by people subjectively. Identifying and quantifying the influences of information transmission efficiency is the best way to solve this problem. Based on the historical information map visualized by ArcGIS software, this study established a hierarchy evaluation model suitable for the analysis of ancient information transmission efficiency from three aspects of Wei-Suo system, beacon system and post system. The information transmission systems in five different regions of Wenzhou in the Ming Dynasty were quantitatively explored respectively. The results break through the qualitative conclusions of the general studies, and find out that the overall information transmission efficiency of Wenzhou in Ming Dynasty was strong in coastal, northern and southern regions, but weak in inland and central regions, which was closely related to the geographical environment and military defense demands in coastal areas of the Ming Dynasty. The model is proven to greatly contribute to judging the spatial configuration of ancient information transmission system in different regions, and provides a new idea for the study on ancient information transmission system.

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Wireless Radio Frequency Automation of Intelligent Optical Fiber Transmission System Based on the Differential Evolution Method

Advances in Multimedia ◽

10.1155/2021/1802001 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Lei Jin ◽

Jinghong Zhao ◽

Xing Huang ◽

Bin Lu

Keyword(s):

Optical Fiber ◽

Differential Evolution ◽

Radio Frequency ◽

Automatic Transmission ◽

Transmission Efficiency ◽

Transmission System ◽

Optical Fiber Transmission ◽

Long Distance ◽

Signal Error ◽

Fiber Transmission

With the continuous development and improvement of science and technology, optical fiber transmission has been transformed from traditional manual transmission to automatic transmission, and the transmission efficiency is constantly improving. In order to further analyze the performance of the intelligent optical fiber transmission process, the differential evolution analysis method is introduced in this paper, integrated architecture is built through the integrated optical and intelligent optical fiber, and the corresponding vector signal error value is solved through the comparison of transmission schemes. The error value is about 9%, through simulation experiments, which can effectively meet the requirement of automation of the wireless radio frequency of the intelligent optical fiber transmission system and realize long-distance transmission.

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Lady of Cypress Chastity

Goddess on the Frontier ◽

10.11126/stanford/9780804799546.003.0005 ◽

2016 ◽

Author(s):

Megan Bryson

Keyword(s):

Ming Dynasty ◽

Eighth Century ◽

The Third ◽

Central Regions ◽

History Of ◽

The Ming Dynasty

As the Ming dynasty continued and gave way to the Qing, more migrants from the empire’s eastern and central regions made their way to Yunnan. Baijie Furen, the third form of Baijie, emerged as a result of this increasing contact between Han outsiders and Dali locals. This chapter argues that Baijie Furen, portrayed in legend as an eighth-century widow martyr, supplanted the earlier forms of Baijie because of her multifaceted identity: for Dali elites, she signified the region’s long history of Confucian virtues, which marked it as civilized; for Ming and Qing elites, her exceptional example proved that imperial civilizing projects could succeed. In both cases Baijie Furen served as a proxy for the Bai people because male elites correlated a population’s civilization with women’s sexual propriety.

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