• Title/Summary/Keyword: 홍대용

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Implementation of PHP extension for Altibase database server (알티베이스 데이터베이스 서버를 위한 PHP 확장 모듈 구현)

  • Hong, Dae-Yong;Kang, Woon-Hak;Lee, Sang-Won
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.11a
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    • pp.1392-1395
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    • 2012
  • PHP는 널리 쓰이는 웹 개발 언어이고, 다양한 데이터베이스 관리 시스템(DBMS)을 위하여 C로 작성된 인터페이스들을 갖고 있다. 특히 ODBC라는 표준화된 인터페이스를 통해 DBMS를 이용할 수 있지만, 이는 DBMS 고유의 인터페이스를 구현하여 사용하는 것에 비해 시스템을 활용하는 면에서 한계를 가진다. 국산 DBMS인 알티베이스는 고유의 C 인터페이스를 제공하고 있으며 본 논문에서는 이를 이용한 전용 PHP 인터페이스 구현에 대해 다루고, 구현의 결과 PHP스크립트에서 데이터베이스 연결 및 데이터 운용을 할 수 있었다.

A Study on the Chinese Architectural View Point of Realist Hong Daeyong and Joseon Embassy in Beijing (실학파(實學派) 학인(學人) 홍대용(洪大容)의 중국(中國) 건축관(建築觀)과 북경(北京) 조선관(朝鮮館)에 관한 연구)

  • Han, Dong-Soo
    • Journal of architectural history
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    • v.15 no.1 s.45
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    • pp.29-40
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    • 2006
  • This paper is focused on Damheonseo(湛軒書), an anthology written by Hong Daeyong, and I deal with Chinese Architectural views which he had experienced in his itinerary to Beijing, and the vivid pictures of Joseonkwan (called the Koryo or Joseon Embassy) located in Beijing at that time. He was a scholar of great erudition over astronomy, mathematics, military science, politics, and so on. He was interested in practical sciences at early time, and criticized secular scholars full of vanity who had presented purposeless articles. In his age of 35, Qianlong(乾隆) 30 (1764, Youngjo 41), he, a military escort, accompanied by Hong Uk, Joseon envoy and his uncle. Before his itinerary, he self-studied Chinese. Also, during a long journey he got new experiences and information around each area, deviating his group whenever he had some times. He could get more variant experiences than others because of his character full of curiosity, and his observations from the vivid lives of the time helped us get various views between Chinese and Korean architecture. Likewise, although he denounced Qing(淸) scathingly as a barbarian, he mentioned several points about the characteristics of Chinese architecture at that time. First of all, totally Chinese architecture had strong rational and practical points. Secondly, based on bountiful products, buildings along streets shown in Chinese city had sophisticated compositions, and luxurious and magnificent appearances. Thirdly, using the brick from walls to houses was so universal. Fourthly, the layouts of building with three- or four-closed courtyard had very orderly shapes, and the structure of street was also so arranged. Finally, because of stand-up lives, the scales and appearances of interior space were even more extended, and storages were less developed than those of Joseon. As another points, I found that Joseonkwan was moved next to Shushangguan(庶常館)from Huidongnanguan(會同南館) around Hanlimyuan(翰林院), and had been remodeled into a house with Korean custom in using the inner spaces, although it was followed by a closed courtyard style. Likewise, I recognized that Ondols were sure to be established in all temporary houses during the journey to Qing, and felt their strong traditional residential custom in such mentions. Now that the past pictures have disappeared and ways of life and our values have been largely changed, this study has very important meaning in comparing the ancient Chinese and Korean architecture.

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Gou Gu Shu in the 18th century Chosun (18세기(世紀) 조선(朝鮮)의 구고술(句股術))

  • Hong, Sung-Sa;Hong, Young-Hee;Kim, Chang-Il
    • Journal for History of Mathematics
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    • v.20 no.4
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    • pp.1-21
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    • 2007
  • We investigate the Gou Gu Shu(句股術) in Hong Jung Ha's Gu Il Jib(九一集) and Cho Tae Gu's Ju Su Gwan Gyun(籌書管見) published in the early 18th century. Using a structural approach and Tien Yuan Shu(天元術), Hong has obtained the most advanced results on the subject in Asia. Using Cho's result influenced by the western mathematics introduced in the middle of the 17th century, we study a process of a theoretical approach in Chosun mathematics in the period.

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A Study on the Distribution of Laboratory Pasteurization Count in Raw Milk (원유의 내열세균오염에 관한 조사연구)

  • 이용욱;권창희;홍대용
    • Journal of Environmental Health Sciences
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    • v.8 no.2
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    • pp.47-51
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    • 1982
  • 135 Raw milk samples corrected from 4 dairy plants before processing were held at 63$\circ$C for 30 minutes and 80$\circ$C for 10 minutes. Thermoduric mesophiles, psychrotrophs and thermophilic bacteria were estimated from the samples treated at 63$\circ$C for 30 minutes and aerobic spore formers from the samples treated at 80$\circ$C for 10 minutes. The results obtained were as follows. 1) The distribution of thermoduric mesophiles were $10^4 - 10^5$ cfu/ml (45.2%), $10^2 - 10^4$ cfu/ml (21.5%), $10^5$ cfu/ml over (20.7%), $10^2 - 10^3$ cfu/ml (8.9%) and $10 - 10^2$ cfu/ml (3.7%). 2) The distribution of thermoduric psychrotrophs were 10 - $10^2$ cfu/ml (40.2%), $10^2 - 10^3$ cfu/ml (29.5%), 10 cfu/ml below (22.3%) and $10^3 - 10^4$ cfu/ml (8.0%). Isolated psychrotrophs had the characteristics of Streptococcus, Micrococcus and Alcaligenes group. 3) The distribution of thermophilic bacteria were 10 cfu/ml below (91.9%), and 10 - $10^2$ cfu/ml (81.8%). 4) Aerobic spore formers counts were 10 cfu/ml below (27.4%), $10^3 - 10^4$ cfu/Illl (26.5%), $10^2 - 10^3$ cfu/ml (23.9%)and 10 - $10^2$ cfu/ml (22.1%).

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