• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.29 no.9
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• pp.79-82
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• 2000

동관은 열전달성, 내식성, 가공성이 우수하여 각종 열교환기용 열전달관으로 각각의 열전달특성요구에 맞게 가공되어 사용되고 있다. 최근 제품가격의 하락에 따라 열전달특성 개선 뿐만아니라 코스트다운에 대한 요구도 커지고, 또 냉매도 HFC계로 변화하고 있어 새로운 관점에서 열전달관개발을 하여야 한다. 일본의 Kobe제강소는 1917년부터 동관을 제조하기 시작하여, 일본 국내는 물론 미국과 아시아 지역에서 높은 보급률을 가지고 있다. 특히 냉동공조용 열전달관 부분에 강한 면모를 보이고 있다. 여기서는 최근 개발된 열전달관에 관하여 그 개발 경위와 열전달특성에 관하여 소개하고자 한다.

• Journal of the Korean hospital association
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• v.31 no.4 s.278
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• pp.79-87
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• 2002

• Korean Journal of Digital Imaging in Medicine
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• v.2 no.1
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• pp.118-121
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• 1996

• The Korean Journal of Applied Statistics
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• v.13 no.2
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• pp.329-341
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• 2000

In Korea, rice is the major crop because rice cultivation serves both cultural and socio-economic purpose. For this reason, rice production survey is very important to the J\linistry of Agriculture and Forestry. Especially. the result of the rice production esimation is used for the agricultural policies. Then, we suggest the method of esimating rice production by using statistical model.

• Journal of radiological science and technology
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• v.6 no.1
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• pp.115-115
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• 1983

• (The)Study of the Eastern Classic
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• no.54
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• pp.235-252
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• 2014

This paper is examining the ideological underpinnings of Park Jin-young[朴震英]. He was intellectual activity is based on Haman[咸安] Gyeongsang-namdo[慶尙南道]. And He was causing the Righteous Army[義兵] saved the country from the crisis of Imjin War[壬辰倭亂, 1592~1598] and the Byongja War[丙子胡亂, 1636~1637] in Mid-Joseon[朝鮮] Dynasty. Therefore, he had to practice patriotism and love people. The purpose of this paper is centered on the acts of Park Jin-young to focus on its ideological foundation to be sure. A cause[大義名分] was laying on the side and the real meaning of the terms of participation and his a far-sighted view [達觀] ever conduct of life[處世] divided into such discussions were developed. In addition, the formation of his ideas around the Jung gu[鄭逑] influenced correlating it with the teacher and student relationships were investigated. Park Jin-young is Im-Byeong War[壬丙兩難] since emerged on the Joseon [朝鮮] Social Jon-ju[尊周] thought was one of the representative figures. His mentor Jung gu was the cause, seriously. And he cause, the influence of the teacher very seriously here was typical of that era. The people loved teacher. And his disciples to overcome difficulties that influence the Righteous Army sought to raise the country. His teachers have taught him Confucian influence. And behave appropriately when life. Park Jin-young acted appropriately when affected by such a life. Consequently, he was a true intellectual in those times.

• Korean journal of applied entomology
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• v.46 no.1 s.145
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• pp.153-158
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• 2007

This study was conducted to develope the observing methods for density of stink bugs in soybean reproductive stage. The adults and nymphs of bean bug, Riptortus clavatus, red-banded shield bug, Piezodous hybneri, green stink bug, Nezara antennata, Sole bug, Dolycoris baccarum, and brown marmorated stink bug, Halyomorpha halys were observed by three observing methods such as beating, sweeping net, and visual counting methods in the full bloom (R2), full pod (R4) and beginning maturity (R7) of soybean. As a result, total number of stink bugs observed was the highest with 5,214.2 by beating method, and then was 2,581.8 by visual counting method, and was the lowest with 103.1 by sweeping net method. Total number of stink bugs observed by the beating and visual counting methods was P. hybneri, followed by N. antennata, H. halys, R. clavatus and D. baccarum with clear difference in observed number of each stink bugs while total number of stink bugs observed by sweeping net method was very low in the range of 18 to 23. Accordingly, the observed density of stink bugs exception of R. clavatus adult by beating method was generally high. However, the number of R. clavatus adult was more observed by flushing method than that by beating method from the beginning bloom (R1) to full maturity (R8), and was more observed at morning time than that at afternoon time. Therefore, two observation methods that flushing method for R. clavatus and beating method for the other stink bugs were recommended for the occurring density of stink bugs in soybean because both bean bug and pentatomidae stink bugs have distinct behavior characteristics such as flying and dropping.

• Proceedings of the KIEE Conference
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• 1993.11a
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• pp.310-313
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• 1993

A design of stabilizing supervisory controller for discrete event dynamic systems(DEDS) is investigated in this paper. The notion of system stability is introduced for the supervisory control and the stable behavior is defined. A framework of stabilizing supervisory controller, which controls a given system to have stable behavior. is formulated and a design method is proposed for the stabilizing, supervisory controller.

• Korean Journal of Weed Science
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• v.10 no.4
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• pp.255-260
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• 1990

Seventeen different herbicides were screened to select promising ones for the control of weeds, which may be used in paddy fields transplanted with 8 days old young rice seedlings. Four classes of herbicides were chosen and tested with seedlings grown under different cultivating conditions. Contact herbicides such as diphenyl-ether and oxadiazol showed severe growth retardation of rice seedlings. Carbamate class(dimepiperate), quinoline class (quinclorac), pyrazol class(pyrazolate), acid amide class(mefenacet and pretilachlor), addition of safener (pretilachlor+fenclorim and mefenacet+bensulfuron+dymuron) and unknown class (KC-7079) exhibited normal growth of seedlings. Sulfonyl urea herbicide class(cimosulfuron, bensulfuron, pyrazosulfuron), and oxarane class(tridiphane) showed the slight growth inhibition but recovered shortly.

• Korean Journal of Digital Imaging in Medicine
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• v.3 no.1
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• pp.76-84
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• 1997

We tried to find any factor to reduce the exposure dose with ST-VA type generator which has the higher exposure dose. The guideline recommended by the provisions of IAEA regulation is being used at the time of radiation exposure and almost of those equipments used for this study had less amount of doses than those in the guideline. The FCR may be possible to decrease a certain amount of dose with effective applications of it's automatic image compensation utilities and the verifying function in PACS. Next time, it is required to add a great number of hospitals for wide range of studios and measurements, and make standard exposure Control table which will bing in practice, material decrease of dose volumes when radiation exposure.