산학협동의 필요성에 관한 소고

장성근,권혁태 順天鄕大學校 學生生活硏究所 1996 學生生活硏究 Vol.3 No.-

Recently, industry-university cooperation has become a popular topic in Korea, which has been proved as one of essential for the industrialization in advanced countries. However, the main leaders of technical innovation, universities, institutions, and enterprises have mostly been doing their researches independently rather than relying on the co-research for the technical innovation. Considering the current situations, Korean goverment should set up the policy that those leader of technical innovations be reorganized in systematical an institutional sense, which end up with the co-research for the technical innovation.. Otherwise, Korea can't jump into the industrially advanced nation in which most of economic problem, especially, the problem of international payment can be solved through the relative advantage of technology. Furthermore, there exist an unlimited competition in high technology and a severe protectionism of technology among countries after the appearance of WTO. In establishing the system of industry-university cooperation, government takes into account the facts that industry should be organized into export oriented structure and be restructured to maximization of autonomy and originality of enterprise, and that the collection of information of technology and science, deregulation, and tax benefit and financial support should be executed by government. Also, industry-university cooperation brings about the better results through the introduction of part-time work at company for the university student, which finally cultivate the high technology man power.

화학용액 증착법으로 제조한 Bi0.9A0.1Fe0.975V0.025O3+α (A=Nd, Tb) 박막의 구조와 전기적 특성

장성근,김윤장 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.10

We have evaluated the ferroelectric and electrical properties of pure BiFeO3 (BFO) and Bi0.9A0.1Fe0.975V0.025O3+α(A=Nd, Tb) thin films on Pt(111)/Ti/SiO2/Si(100) substrates by using a chemical solution deposition method. The remnant polarization (2Pr) of the Bi0.9Tb0.1Fe0.975V0.025O3+α (BTFVO) thin film was approximately 65 μC/cm2,with a maximum applied electric field of 950 kV/cm and a frequency of 10 kHz, where as that of theBi0.9Nd0.1Fe0.975V0.025O3+α (BNFVO) thin film was approximately 37 μC/cm2 with a maximum applied electric field of910 kV/cm. The leakage current density of the co-doped BNFVO thin film was four orders of magnitude lowerthan that of the pure BFO thin film, at 2.75×10-7 A/cm2 with an applied electric field of 100 kV/cm. The grainsize and uniformity of the co-doped BNFVO and BTFVO thin films were improved, in comparison to the pureBFO thin film, through structural modificationsdue to the co-doping with Nd and Tb. 화학 용액 증착법으로 순수한 BiFeO3 (BFO) 박막과 Bi0.9Nd0.1Fe0.975V0.025O3+α(BNFVO), Bi0.9Tb0.1Fe0.975V0.025O3+α (BTFVO) 박막을 Pt(111)/Ti/SiO2/Si(100) 기판 위에 증착하였다. Nd, Tb와 V을 동시 도핑된 BNFVO 박막과 BTFVO 박막의 전기적 특성이 순수한 BFO 박막에 비해서 크게 향상되었다. BNFVO 박막에 최대 전압 910 kV/cm를 인가하였을 때, 1 kHz에서 측정된 잔류 분극(2Pr)과 항전기장(2Ec)은 37 μC/cm2, 748 kV/cm 이었고, BTFVO 박막에 최대 전압 950 kV/cm를 인가하였을 때, 잔류 분극(2Pr)과 항전기장(2Ec)은  65μC/cm2, 537 kV/cm 였다. 또한 순수한 BFO 박막과 BNFVO, BTFVO 박막의 누설 전류밀도는 인가된 전기장이 100 kV/cm 일 때 1.58 x 10–3 A/cm2, 2.75 x 10–7 A/cm2, 그리고 2.03 x 10–5 A/cm2을 각각 보였다. BNFVO 박막의 경우 순수한 BFO 박막보다 4승 작은 양호한 특성을 보였다. Nd, Tb 그리고 V이 동시 도핑된 BNFVO 박막과 BTFVO 박막의 구조 변화에 의해서 그레인 크기와 균일성이 순수한 BFO 빅막에 비해서 개선되었다

곡선 선형을 반영한 터널 정보모델링 및 IFC 데이터 스키마를 활용한 모델기반의 정보관리 방안

장성근,권태호,박상일,이상호 한국전산구조공학회 2017 한국전산구조공학회논문집 Vol.30 No.6

토목분야 생산성 향상을 위해 BIM을 적용하기 위한 노력이 계속되고 있으나, 선형과 지반에 대한 정보가 필수적인 터널 구조물의 정보모델링에 대한 연구는 미흡한 상황이다. AMT에서 생성된 선형의 이산화를 통해 포인트의 정보를 BAT로 전 달하여 곡선 선형을 반영한 터널 모델 생성 방안을 제시하였다. 철도 구조물과 선형에 대한 물리적 요소와 공간적 요소를 모두 고려할 수 있도록 IFC 데이터 스키마를 확장하였으며, 확장된 데이터 스키마를 참조하여 선형, 구조물, 지반 정보에 대한 의미정보를 PSET에 담아 IFC기반의 정보관리를 가능하게 하였다. 제안한 방법에 따라 생성한 정보모델을 통해 터널과 밀접한 암반 등급을 자동으로 도출함으로써 활용성을 검증하였다. In order to improve the productivity in the civil engineering field, efforts to apply BIM have been continuing, however, research on information modeling of tunnel structures considering alignment is insufficient. In this study, we proposed the method of building tunnel models reflecting curved alignment by transferring point data to BIM Authoring Tools(BAT) through discretization of alignment in Alignment-centered Modeling Tools(AMT). IFC data schema was derived to consider the physical and spatial elements of tunnel structures and alignment and IFC-based information management for tunnel alignment, tunnel structures and ground conditions was possible by referring to the extended data schema and including meanings in IFC property sets. The ratings for ground condition in Rock Mass Rating(RMR) and Q-system was automatically derived by using generated information model according to the proposed method.

Diethylnitrosamine 과 Diethanolnitrosamine 이 흰쥐 혈청의 탈수소 효소활성에 미치는 영향

장성근,이동욱,박기현 ( Sung Keun Chang,Dong Wook Lee,Ki Hyun Park ) 생화학분자생물학회 1991 BMB Reports Vol.24 No.6

Lactate dehydrogenase(LDH) and its isozyme patterns were investigated in the serum of the rats treated with diethylnitrosamine(DENA) or diethanolnitrosamine(DELNA). LDH activity was remarkably increased by the treatment of these chemicals, but that was gradually decreased from about 2 weeks after administration of the chemicals. Especially the relative activity of LDH isozyme 1 was increased remarkably, whereas that of isozyme. 5 was slightly decreased from the 5th days. However, the activity ratios of the isozymes were not changed significantly with time course. This unique alterations in serum LDH activity might be provide a useful information for the detection of tissue toxicity induced by these chemicals.

大邱地域 中小纖維業體에 대한 從業員의 認識과 移職에 관한 考察

蔣成根 慶北大學校 經營大學院 1995 最高經營者課程 論文集 Vol.- No.22

화학용액 증착법으로 제조한 Bi_0.9A_0.1Fe_0.975V_0.025O₃₊_α(A=Nd, Tb) 박막의 구조와 전기적 특성

장성근,김윤장,Chang, Sung-Keun,Kim, Youn-Jang 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.10

We have evaluated the ferroelectric and electrical properties of pure $BiFeO_3$ (BFO) and $Bi_{0.9}A_{0.1}Fe_{0.975}V_{0.025}O_{3+{\alpha}}$ (A=Nd, Tb) thin films on $Pt(111)/Ti/SiO_2/Si(100)$ substrates by using a chemical solution deposition method. The remnant polarization ($2P_r$) of the $Bi_{0.9}Tb_{0.1}Fe_{0.975}V_{0.025}O_{3+{\alpha}}$ (BTFVO) thin film was approximately $65{\mu}C/cm^2$, with a maximum applied electric field of 950 kV/cm and a frequency of 10 kHz, where as that of the $Bi_{0.9}Nd_{0.1}Fe_{0.975}V_{0.025}O_{3+{\alpha}}$ (BNFVO) thin film was approximately $37{\mu}C/cm^2$ with a maximum applied electric field of 910 kV/cm. The leakage current density of the co-doped BNFVO thin film was four orders of magnitude lower than that of the pure BFO thin film, at $2.75{\times}10^{-7}A/cm^2$ with an applied electric field of 100 kV/cm. The grain size and uniformity of the co-doped BNFVO and BTFVO thin films were improved, in comparison to the pure BFO thin film, through structural modificationsdue to the co-doping with Nd and Tb.

Effect of Diethylnitrosamine and Diethanolnitrosamine on Serum Lactate Dehydrogenase in Rats

장성근,이동욱,박기현,Chang, Sung-Keun,Lee, Dong-Wook,Park, Ki-Hyon 생화학분자생물학회 1991 한국생화학회지 Vol.24 No.6

Diethylnitrosamine(DENA)과 Diethanolnitrosamine(DELNA)을 흰쥐에 투여하고 혈청에서 젖산 탈수소효소(LDH)의 활성도와 동위효소의 pattern을 관찰하였다. 이들의 투여로 인해 LDH의 총활성도는 크게 증가하되 약 2주일 후부터는 점차 감소되었다. 전기영동법에 의해 동위효소의 pattern을 측정한 결과 전형적인 5종의 isozyme만 확인되었고, 특히 LDH1의 상대적인 활성도는 정상쥐에 비해 크게 증가된 반면 LDH5는 오히려 다소 감소되었다. 그러나 이들 두 isozyme의 상대적인 활성도의 비는 크게 변화되지 않았다. 이와 같은 LDH isozyme 의 특이한 활성도의 변화는 nitrosamine화합물들에 의해 유발되는 생체손상의 한 특정인 것 같다. Lactate dehydrogenase(LDH) and its isozyme patterns were investigated in the serum of the rats treated with diethylnitrosamine(DENA) or diethanolnitrosamine(DELNA). LDH activity was remarkably increased by the treatment of these chemicals, but that was gradually decreased from about 2 weeks after administration of the chemicals. Especially the relative activity of LDH isozyme 1 was increased remarkably, whereas that of isozyme. 5 was slightly decreased from the 5th days. However, the activity ratios of the isozymes were not changed significantly with time course. This unique alterations in serum LDH activity might be provide a useful information for the detection of tissue toxicity induced by these chemicals.

테크노 CEO의 성공조건

장성근,김재구 한국전문경영인학회 2010 專門經營人硏究 Vol.13 No.3

기술의 변화 속도가 빠르고 경쟁이 치열한 경영 환경에서 기업이 지속적으로 성장․발전하기 위해서는 R&D 활동을 강화하고 기술능력과 경영능력을 겸비한 테크노 CEO를 확보․육성하는 것이 매우 중요하다. 이에 따라 본 연구에서는 국내외의 대표적인 테크노 CEO 8명을 연구 대상으로 사례 연구를 하여 테크노 CEO의 성공조건을 도출하였다. 다중 사례(Multiple case) 분석을 실시한 결과, 도출된 테크노 CEO의 6가지 성공조건은 “탁월한 기술능력”, “비즈니스 마인드의 겸비”, “외부 자원과 아이디어의 전략적인 활용”, “신뢰중심의 사람관리”, “철저한 현장주의”, “강한 실행력”이었다. 또한 6가지 성공조건의 이면에 존재하는 성공동력은 “열정”, “긍정적인 태도”, “운”인 것으로 나타났다. 마지막으로 테크노 CEO가 기술경영의 핵심요인임을 강조하기 위해, 6가지 성공조건을 M(Management), O(Operation), T(Technology)로 요약하고 본 연구의 시사점을 제시하였다.

R&D투자, 기술경영능력, 기업성과간의 관계

장성근,신영수 한국경영학회 2008 한국경영학회 통합학술발표논문집 Vol.2008 No.8

한국산 해양 의충동물 개불에서 Anthraquinone 및 Sterol 성분연구

장성근,박영현,채석,김인규,서영완,조기웅,신종헌,Chang, Sung-keun,Park, Yong-Hyun,Chai, Seuk,Kim, In-Kyu,Seo, Young-Wan,Cho, Ki-woong,Shin, Jong-Heon 대한화학회 1998 대한화학회지 Vol.42 No.1

한국 연해에 서식하고 있는 의충동물 개불(Urechis unicintus)로 부터 강심작용과 관련된 $Na^+,K^+-ATPase$ 저해 작용 및 cyclic AMP phosphodiesterase 저해 작용이 높은 anthraquinones화합물인 chrysophanol, physcion 및 1-o-methyl-2methoxychrysophanol을 분리하였다.주로 HMQC, HMBC 및 NOE 등의 분광학적 방법으로 이들의 구조를 밝혔다. Three anthraquinones, chrysophanol, physcion and 1-o-methyl-2-methoxychrysophanol which have $Na^+,K^+-ATPase$ and cyclic AMP phosphodiesterase lowering activities related to cardiotonic action were isolated from the Korean marine echiura, Urechis unicintus. Spectroscopic methods, including HMQC, HMBC and NOE studies, were used to establish the structures.