조직특성이 정보기술도입성공에 미치는 영향에 관한 연구

최해진,권혁기 대한경영학회 2003 大韓經營學會誌 Vol.16 No.6

This paper suggests a contingent perspective for analyzing critical success factors of information systems by organizational characteristics in Korean firms. The contingent perspective includes such corporate characteristics as industry, strategy, value-added application, and corporate culture. The information technology should be introduced for firms to cope with the environment and in the introduction of information technology means that the infrastructure or ability for organizational characteristics is established. But whether the firm is successful to the introduction of information technology or not depends on its specific corporate culture. This research analyzed 25 firms in various industries, and that the domestic small and medium firms consider some issues-support of top management, for malization of standard architecture, user involvement, high quality software, etc.- as the necessary ones. It also found through ANOV A that organizational characteristics highly influences the critical success factors of IS the corporations face.

혐기성 변성 아크릴계 접착제의 제조 및 접착 특성

주혁종,오인석,권호길,최돈묵 忠南大學校 産業技術硏究所 1991 산업기술연구논문집 Vol.6 No.2

An experimental study was performed to prepare the anaerobic acrylic adhesives with TEGDMA(Trietylene Glycol Dimethacrylate), acrylic acid, p-benzoquinnone and CTBN(Carboxyl Terminated Butadiene Nitrile) To characterize the anaerobic modifided acrylic adhesives, tensile shear adhesion strength, DSC, FT-IR, water resistance, chemicals resistance and oil resistance of adhesives were tested. The results obtained in this study could be summerized as follows; 1. Tensile adhesion shear strength was increased with increasing the adding amounts of p-benzoquinone up to 75kgf/㎠ when 0.163wt% added. 2. After a water resistance test for 72hrs, tensile shear adhension strength maintenance was dominant(about 72%) in the C-3 as compared with the others and alkaline solution resistance of adhesives was excellent on the whole as compare to acid solution. 3. The gasoline, light oil resistance of adhesives were very good enough that could be used in the field of mechanical connecting parts.

2D-C/C-composites의 제조와 기계적 물성

주혁종,최돈묵 忠南大學校 産業技術硏究所 1989 산업기술연구논문집 Vol.4 No.1

The purpose of this paper is to fabricate the 2D-C/C-composites with various angles and to examine their mechanical properties. The following results can be drawn from the experiment ; 1) When 2D-C/C-composites carbonized up to 1000℃, the unidirectional sample was shrinked about 20% and the others were shrinked slightly. Meanwhile the density of 2D-C/C-composite was decreased with increasing the laminating angle expect the unidirectional composite (0°/0°) 2) After five times impregnation and carbonization the density did not increased due to the block formation. 3) Flexual strength, flexual modulus and impact strength were increased with increasing the fiber volume fraction. But flexual strength and modulus were decreased above 65% fiber volume fraction, also impact strength was decreased above 68% fiber volume fraction. 4) The value of flexual strength, modulus and impact strength were dominent in the unidirectional sample as compared with the different laminating angle.

병렬 객체지향 표기 언어에서의 통신과 동기화를 위한 객체 관리기

권혁찬,최숙영,유우종,유관종 충남대학교 기초과학연구소 1995 忠南科學硏究誌 Vol.22 No.2

In this paper, we present the design and implementation of object manager for communication and synchronization in POOSL(Parallel Object-Oriented Specification Language). POOSL is a specification language which is based on object-oriented concepts and provides various granularities of parallelism and communication methods. An object manager handles synchronization of objects and supports three types of communication, that is, synchronous, asynchronous and future type communication. Object manager is automatically generated in the phase of translation of POOSL. We implemented the object manager using lex and yacc.

임진왜란 관련 한일 역사서사문학의 성격 : <임진록> 과 <태합기(太閤記)>· <조선정벌기> 의 비교를 중심으로 Focusing on the comparative study between " Imjinrok " and " Taikouki " , " Chosenseipatski "

설성경,최문정,권혁래 국제비교한국학회 2002 비교한국학 Comparative Korean Studies Vol.10 No.1

On the subject of Japanese invasion of Korea in 1592(briefly called Imjin Invasion), it was studied for the character of Korea-Japan historic literature; Imjinrok, Taikouki, Chosenseipatski. The approach was made focusing on the environment, narrative method, plot and the characters, consciousess of writers etc. This discussion can be briefed out as follows. First of all, Imjinrok of Chosun Dynasty has been written with a great influence from both practical literature and historic description after Imjin Invasion. The Chronicle recording can counted as one of the major method of narration. The Japanese works such as Taikouki and Chosenseipatski were made on the tradition of military literature of previous generation. One of distinctive feature is the beautification and the heroism that is introduced as the repose for the defeated. It comes from the intended efforts to shape the works as the historical records outwardly, continuously following the trend of military records of previous generations. When the plot is compared, it is as follows, It can be categorized on the narrative novels; before the war, in the beginning of the war, in the midst of war, in the end of war, Three different copies of Imjinrok are almost identical with the stage as the midst of war as the historical records. However, it shows big difference in the peace treaty is made after the death of Toyotomi Hediyoshi, but the Hangul version presents that the Samyunhdangs heroic story over the Japanese after the General Lee Sunsin furthering the final ending with colonialism over Japan. It is one of the important pattern that the important pattern that the writers consciousness is found from post-war novels, even in the historical narration. The plot of Taikouki is composed as two parts: the combat story telling the invasion to the Chosun and the non-combat story showing the personal glorification of Toyotomi. The combat story showing the personal glorification of Toyotomi, The combat story is generally written with victorious events of Japanese military and the sudden final end without a clear description over peace treaty with Ming Dynasty and the defeat of Japan. In the middle of the combat story, it is full with non-combat statement and anecdote designed to chant the glorious Toyotomi and his ruling. On the contrary, two works of chosenseipataki is filled with the combat story on the whole. The first half of the Hori-copy makes the description comparatively as it is, but the second half relatively centered on the battle against Ming. On the non-combat narration, it shows the strong will of the writer who is going to emphasize the ideology of Japanese king. The Oseiki-copy is similar with the Hory-copy, but it is added up with new anecdotes with extended explanation for some simple contents, particularly on the heroism for Toyotomi and the martial story of Gato and Konisi. The comparison between the chosun and the Japanese is tried from different perspectives of counter partner each other: Imjinrok with the brutal and avaricious hegemony of the Japanese, Tailouki and Chosenseipatski with the lustful and extravagant, incompetent martiality of the Chosun. Compared with characters and consciousness of writer, Imjinrok represents the type of royal personality and the inevitable Gods providence in detail. For the Chosun Dynasty, it is counted as the winning forces: civil volunteer soldiers, the royal military warlords, foreign troops from Ming Dynasty, the Royal ministers asking the augmentation troops of Ming. Among the three copies, it brings about the active roles of commanders of civil volunteer forces and generals, remarkably displaying royalty and patriotism. Meanwhile, Lee Sunsin is shaped as the most important character form lots of commanders. Out of the defeated generals, it is presented with the outstanding character with fidelity, surpassing over victorious generals. On the other works, the dispatched troops of Ming seems to play a decisive role in the descriptive narration. It can mean the meritorious achievement in the history, but it seems for the writer to consider Ming as the God-sent troops. What draws the attention is the active involvement of characters who is praised with superpower of with deity. On the Chinese copy of Kukdo, this phenomenon is found with partial involvements, but on the Hangul copies with decisive and overall roles. From the Hangul copies, it is understandable with detailed pattern as a the providence of a God, theorized with untouchable presence of the Chosun Dynasty whom is protected by an Heavenly God and the Budda from any Japanese intrusive invasion. In connection with the reality in fact, the recognition of the God providence is quite superficial, resulting in the evidence of conservative ideology of actual politics. The writers of Tiakouki and Chosunseipatski tried to depict the ideal supreme commander and warriorship with the introduction of characters: Toyotomi Hideyoshi, Gato Kiyomasa, Konisi Yukinaga etc. It seems to foster the warrior spirit by the guideline of warrior way for the next generation. It is also originated from the intention to serve repose of the Toyotomi family, which is defeated by the Tokugawa Shogun.

Anti-inflammatory effects of β-sitosterol-β-D-glucoside from Trachelospermum jasminoides (Apocynaceae) in lipopolysaccharide-stimulated RAW 264.7 murine macrophages.

Choi, Ji Na,Choi, Yun-Hyeok,Lee, Jeong-Min,Noh, Ill Chan,Park, Jae Won,Choi, Wahn Soo,Choi, Jung Ho Taylor Francis Health Sciences 2012 NATURAL PRODUCT RESEARCH Vol.26 No.24

<P>Trachelospermum jasminoides (Apocynaceae) has pharmacological effects that include anti-inflammatory, anti-bacterial and anti-viral activities, which have been observed from various studies. Of these pharmacological effects, the anti-inflammatory capacity of compounds from T. jasminoides is not yet known exactly. In this study, we investigated the compound that can be used for the suppression of lipopolysacchaide (LPS) stimulated inflammatory responses in macrophages among the five isolated compounds. β-sitosterol-β-D-glucoside (1) was found to reduce nitric oxide (NO) production from LPS-induced RAW 264.7 cells the most. In addition, compound 1 strongly inhibited the interleukin 6 (IL-6) activities of stimulated macrophages. Treatment of RAW 264.7 cells with compound 1 reduced secretion of inflammatory elements including tumour necrosis factor - alpha (TNF-α) and interleukin 1 beta (IL-1β). Thus, compound 1 may be a useful candidate for the development of new drugs to treat endotoxemia and inflammation accompanied by the overproduction of NO.</P>

Bioassay-guided Isolation of Novel Compound from Paeonia suffruticosa Andrews Roots as an IL-$1{\beta}$ Inhibitor

Choi, Yun-Hyeok,Yoo, Hee-Jung,Noh, Ill Chan,Lee, Jeong-Min,Park, Jae Won,Choi, Wahn Soo,Choi, Jung Ho 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.5

The inhibition of Interleukin-1beta (IL-$1{\beta}$) is of substantial interest for the treatment of rheumatoid arthritis. Using an in vitro assay with RAW 264.7 cells, oxo-acetic acid 2-ethoxy-4-(3-hydroxy-2-oxopropyl) phenyl ester (1) was isolated from the roots of Paeonia suffruticosa Andrews as an inhibitor of IL-$1{\beta}$ with an $IC_{50}$ value of 56 ${\mu}M$. Compound 1 is a novel phenylesteric compound from P. suffruticosa Andrews. Compound 1 was shown to inhibit the production of pro-inflammatory cytokines in RAW 264.7 cells. Thus, a possible new action of novel compound is provided explaining the anti-rheumatoid arthritic properties of P. suffruticosa Andrews.

Dry-Air 및 혼합가스의 절연성 평가

최은혁(Eun-Hyeok Choi),최영길(Young-kil Choi),장승호(Seung-Ho Jang),최상태 (Sang-Tae Choi),우성훈(Sung-Hun Woo),김이국(Lee-Kuk Kim),이광식(Kwang-Sik Lee) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.5

현재 산업사회의 발달과 더불어 신뢰성 높은 양질의 전기에너지와 운전 및 보수의 간편화, 계통운용의 신뢰성의 확보가 요구되고 있다. 또한 SF. 을 대체할 친환경적인 절연매체의 개발이 절실히 요구되고 있다. 이에 본 연구는 모의 GIS내 친환경적인 절연재료인 질소(N₂)와 산소(O₂)의 혼합가스(N₂:O₂=79:21, N₂:O₂=60:40, N₂:O₂=40:60)과 Dry-Air 기본적인 절연 특성을 밝혀, 각종 전력응용 설비의 절연매체로 사용가능함을 구명하고저 한다.

웨어러블 센서 데이터 기반의 교통사고 위험 알림 시스템

최민혁 ( Min-hyeok Choi ),정지원 ( Ji-won Jung ),변찬혁 ( Chan-hyeok Byun ),최태원 ( Tae-won Choi ),장명호 ( Myungho Jang ),김희주 ( Heeju Kim ),송충건 ( Chung-geon Song ),유헌창 ( Heonchang Yu ) 한국컴퓨터교육학회 2017 한국컴퓨터교육학회 학술발표대회논문집 Vol.21 No.1

대한민국은 교통사고 발생건수는 OECD 국가들 중 최상위에 있다. 그러나 국내 교통사고 예방을 위한 연구에서는 외부 센서를 통해 충돌을 회피하거나 충격을 감지하여 운전자를 보호하는 장치에 대한 적용만을 고려하고 있다. 본 연구에서는 운전자의 위험행위를 감지하기 위하여 웨어러블 센서를 이용하여 위험상황을 인식하고 사용자에게 경고를 전달하여 교통사고를 예방하는 시스템을 제안하고자 한다. 연구의 결과는 향후 국내 교통사고 예방 시스템 구축에 활용 되어 국내 교통사고 감소비율 증가에 기여할 것으로 기대된다.

시화호 인공습지에서 시공간적 수질분포 및 오염물질 제거효율 평가

최돈혁(Don Hyeok Choi),최광순(Kwang Soon Choi),김동섭(Dong Sup Kim),김세원(Sea Won Kim),최동호(Dong Ho Choi),황인서(In Seo Hwang),이윤경(Yun Kyoung Lee),강호(Ho Kang) 大韓環境工學會 2008 대한환경공학회지 Vol.30 No.10