一级大片免费_成人免费观看在线_国产一区二区三区精品久久久无广告_久久99精品久久久久久青青91_com.黄_久久久久久久国产免费看

position: EnglishChannel  > Oriental Wisdom> Operations Research Originates in Transport of Military Rations

Operations Research Originates in Transport of Military Rations

Source: Science and Technology Daily | 2023-08-29 16:20:08 | Author: ZONG?Shihan


The scene of livestock transporting goods depicted in Along the River During the Qingming Festival painted by Zhang Zeduan(1085–1145).(PHOTO:VCG)

By?ZONG?Shihan

When he was a local dignitary of the Song Dynasty, Shen Kuo faced a crucial challenge of grain transportation while leading his troops against the Western Xia's invasion around 1080. It was urgent for him to find a more efficient method to transport war supplies.

To find a solution, General Shen analyzed the proportion between logistics personnel and soldiers during different marching days, as well as the advantages and disadvantages of using livestock and manpower to transport rations. These analyses were documented in his epic book, Dream Pool Essays.

The first method involved using manpower. Based on the situation at the time, one logistics staffer could carry 37.5kg of rice, while one soldier carried five days of solid food. So, if one logistics staffer supplied one soldier, they could march for 18 days one way, or nine days round trip. Three logistics staff supplying one soldier allowed for 31 days one way, or 16 days round trip. When a logistics staff 's rice was almost used up, let him return first.

However, three logistics staff per soldier was the limit, according to Shen. This was because to mobilize an army of one hundred thousand, it would require three 300,000 logistics staff for grain transportation, making it difficult to scale up further.

The second method was utilizing livestock. Normally, a camel could carry 150kg of rice, a horse or a mule could carry 81.25kg of rice, and a donkey could carry 50kg of rice.

Compared with manpower, there were advantages and disadvantages. Livestock could carry more food than manpower, streamlining soldiers needs and raising combat effectiveness. However, during the march, the animals needed extra time and effort to graze, otherwise they would become weak and even die, resulting in the loss of grain carried.

Because of? higher costs and lower efficiency of self-transportation, Shen emphasized the importance of seizing enemy grain.?Although it was difficult to requisition grain from enemy territories, it could ensure the frontline supply, reducing the pressure on logistic personnel and livestock.

To resolve this military logistics problem actually opened a door to modern operation research ideas, aiming at the overall optimum and seeking a better action plan.

Editor:宗詩涵

Top News

China Focus: China takes firm countermeasures against U.S. tariff bullying

China has taken swift, firm countermeasures following the latest U.S. tariff hike on Chinese imports, in a move to safeguard its legitimate rights and interests.

2025 ZGC Forum: Gala for Global Sci-tech Cooperation

The 2025 Zhongguancun Forum Annual Conference (2025 ZGC Forum), with a focus on new quality productive forces, concluded on March 31, with significant results and promotion of international sci-tech cooperation.

抱歉,您使用的瀏覽器版本過低或開啟了瀏覽器兼容模式,這會影響您正常瀏覽本網頁

您可以進行以下操作:

1.將瀏覽器切換回極速模式

2.點擊下面圖標升級或更換您的瀏覽器

3.暫不升級,繼續瀏覽

繼續瀏覽
主站蜘蛛池模板: 美女bbb摸bbb润湿bbb | 久草热草 | 亚洲国产精品999久久久婷婷 | 亚洲一区二区伦理 | 狠狠躁夜夜躁人人爽超踫97香蕉 | 69p69永久网址 | 91精品国产91久久综合桃花 | 国产精品亚洲一区在现观看 | 国产在线无码视频观看草草视频 | 欧美a影院 | 国产三区四区视频 | 91精品国产99久久久久 | 日韩欧美二区三区 | 黑丝av在线播放 | 日日射天天干 | 91精品视频免费看 | 久久91 | 99久久婷婷国产精品综合 | av二区在线 | 亚洲精品亚洲人成人网在线播放 | 成人欧美一区二区三区黑人孕妇 | 免费无码一级成年片在线观看 | 一本精品999爽爽久久久 | 黄色小片免费观看 | av在线h | 亚洲 麻豆| a∨网站 | 久久日本精品字幕区二区 | 国产色产综合色产在线视频 | 视频亚洲一区二区 | 免费一区二区视频 | 九一免费观看网站 | 亚洲特黄 | 麻豆国产在线视频 | 色综合天天天天做夜夜夜夜做 | 三区中文字幕 | 国产一区二区高清在线观看 | 日韩一区二区三区中文字幕 | 91高潮精品免费porn | 欧美日韩一区二区三区自拍 | 久久国产成人午夜av影院武则天 |