건설산업 관점의 국가 리스크 평가방식 소개

이강욱,Lee, Gang-Uk 한국건설관리학회 2017 건설관리 : 한국건설관리학회 학회지 Vol.18 No.1

경주마(競走馬) 혈청(血淸)의 총단백질(總蛋白質) 및 Ascorbic Acid 함량(含量)에 관하여

이강욱,용만중,Lee, Kang Wook,Yong, Mahn Joong 대한수의학회 1973 大韓獸醫學會誌 Vol.13 No.2

The concentrations of ascorbic acid and total protein in blood serum of 57 healthy race horses (17 males and 40 females) were observed. The results obtained were summarized as follows: 1) The mean value of ascorbic acid concentration was $0.44{\pm}0.16$ mg/100 ml (SD) ranging 0.20-0.92mg/100ml and sex difference was not significant. 2) The mean value of total protein concentration was $6.11{\pm}0.3$ g/170 ml(SD) ranging 5.6-7.0g/100 ml and their sex differences were significant(P<0.05); male $6.36{\pm}0.09$ (SE), female $6.13{\pm}0.06$ (SE). 3) Observation on the correlation between the total protein and ascorbic acid content (${\gamma}$=+0.3) and a liner repression equation (y=0.123x-0.31) were obtained.

Guinea pig의 갑상선기능(甲狀腺機能)이 부신(副腎), 뇌하수체(腦下垂體) 및 생식선(生殖腺)에 미치는 영향(影響) I. Guinea pig의 갑상선(甲狀腺)이 부신(副腎)에 미치는 영향(影響)

이강욱,이규승,정영채,Lee, Kang Wook,Lee, Kyu Sung,Cheong, Young Chai 대한수의학회 1968 大韓獸醫學會誌 Vol.8 No.2

The mature guinea pigs were grouped as indicated in the table 1. Radio-active iodine(I-131)in dose of 4.5mci, was administered to the experimental groups. The animals were killed for examination in 1, 7, 14, 28, 42, and 55 days after the administration the radio-active iodine. The thyroid and adrenal glands were observed histologically. The results obtained were as follows; 1. One day after the administration, thyroid epithelial cells were abnormally enlarged. After seven days, specimens taken from the middle of the thyroid showed that the follicles and epithelial cells were changing to fibrous tissue, however, some follicles still remained in the verge of the thyroid. Follicles were not observed after fourteen days. After twenty-eight days, the follicles had all changed to fibrous tissue, and had lost their function. 2. The size of the zonas gromerulosa of adrenal cortex epually, in both male and female, showed slight fluctuation in size with no tendency to be changed. 3. Among the zones of the adrenal glands, zona fasciculata showed marked changes. Zona fasciculata was atrophied in Process of time. In females, it was atrophied significantly(P<0.05) after fourteen days, and highly significant (P<0.01) in twenty-eight and fifty-six days after the administration of radioactive iodine. In males, it also decreased significantly(P<0.05) in seventy-eight days and highly significant(P<0.01) in forty-two and fifty-six days after the administration. 4. The size of the Zona reticularis of adrenal cortex in the females increased significantly (P<0.05) in twenty-eight days after the administration. In males, it showed slight fluctuation until twenty-eight days, but it increased significantly(P<0.05) in forty-two and fifty-six days after the administration. 5. The size of the adrenal medulla increased significantly(P<0.05) in twenty-eight and forty-two days in females. It was increased significantly(P<0.05) in fourth-two days and high significantly(P<0.01) in fifty-six days after the administration.

임신 Rat에 있어서 방사성인(³²P)의 흡수 분포에 관한 연구

이강욱,정영채,이홍식,남치주,Lee, Kang Wook,Chung, Yung Chai,Lee, Heung Shik,Nam, Tchi Chou 대한수의학회 1969 大韓獸醫學會誌 Vol.9 No.2

The distribution of radiophosphorus ($^{32}P$) was observed in three groups of female Albino tat consisted of early pregnancy group (10 days of pregnancy), late pregnancy group (18 days of pregnancy) and nonpregnanted control group. The results obtained were as follows: 1. The various sites arranged in the descending of absorption rate of $^{32}P$ were femur, mandible, liver, spleen, ovary, fetus (only from early pregnancy group) and kidney in both groups of non-pregnanted and early pregnancy and femur, mandible, fetus, liver, ovary, spleen and kidney in the late pregnancy group. 2. The significant difference (P<0.05) in the absorption rate was found between femur and mandible in the early pregnancy group. 3. The absorption rate of fetus from late pregnancy group was significantly (P<0.01) higher than that of fetus from the early pregnancy group. 4. The high absorption rate was observed with femur and mandible in both groups of non-pregnanted and early pregnancy. 5. The significantly (P<0.01) high absorption rate was observed with ovary and fetus from the late pregnancy group.

임신한우의 혈액에 관한 연구 2 . 임신한우의 혈액학치에 관한 연구

이강욱,강희탁 ( Kang Wook Lee,Hi Tak Kang ) 한국축산학회 1976 한국축산학회지 Vol.18 No.5

연소도이득효과(BUC) 적용 사용후핵연료 운반용기의 임계 불확실도 평가

이강욱,박제호,김도형,김태만,윤정현,Lee, Gang-Ug,Park, Jea-Ho,Kim, Do-Hyung,Kim, Tae-Man,Yoon, Jeong-Hyun 한국방사성폐기물학회 2011 방사성폐기물학회지 Vol.9 No.3

In general, conventional criticality analyses for spent fuel transport/dry storage systems have been performed based on assumption of fresh fuel concerning the potential uncertainties from number density calculation of Transuranic and Fission Products in spent fuel. However, because of economic loss due to the excessive criticality margin, recently the design of transport/dry storage systems with Burnup Credit(BUC) application has been actively developed. The uncertainties in criticality analyses on transport/storage systems with BUC technique show strong dependance upon initial enrichment and burnup rate, whereas those in the conventional criticality evaluation based on fresh fuel assumption do not show such a dependance. In this study, regulatory-required uncertainties of the criticality analyses for BK 26 Cask, which is conceptually designed spent fuel transport cask with BUC corresponding to the limiting circumstances on nuclear power plants in Korea, are evaluated as a function of initial enrichment and burnup rate. Results of this study will be used as basic data for spent fuel loading curve of BK 26 Cask. 국내 외 수많은 수송 건식저장 시스템의 임계해석은 사용후핵연료내에 초우라늄물질(transuranic) 및 핵분열생성물(fission products) 계산의 불확실성을 이유로, 신연료로 가정된 가상연료를 적용하여 평가해왔다. 그러나 과도한 임계 여유도에 따른 경제적 손실이 크기 때문에 최근 들어 연소도이득(Burnup Credit, BUC)이 반영된 수송 건식저장 시스템의 설계 및 상용화가 추진되고 있다. 이러한 BUC 기술은 기존 임계해석 시요구되는 상수화된 불확실도와 달리 초기 농축도와 연소도 구간에 따라 상이한 불확실도를 갖게 된다. 이에 본 연구에서는 '국내 원전의 제한사항이 반영된 26다발 SNF 장전 BUC 적용 용기'(이하 BK 26 Cask)를 대상으로 관련 기술표준 및 설계요건에서 요구되는 불확실도를 평가하여 농축도 및 연소도의 함수로 계산하였다. 본 연구결과는 추후 BK 26 Cask 국내 사용후핵연료의 장전 수용률 분석의 기반자료로 활용된다.

입체복합공간 개발사업의 프로그램 성과관리 체계 구축

이강욱,홍화욱,박희대,한승헌,Lee, Kang-Wook,Hong, Hwa-Uk,Park, Hee-Dae,Han, Seung-Heon 한국건설관리학회 2011 한국건설관리학회 논문집 Vol.12 No.1

도시재생사업의 시장 규모는 꾸준히 증가하고 있으며, 도시재생 사업에서 큰 비중을 차지하는 입체복합공간 개발사업 역시 증가하는 추세를 보이고 있다. 하지만 기존의 도시재생 관련 연구는 국내외 사례의 비교분석에 기반한 시사점 및 제도의 개선방안 도출이 주를 이루어왔으며, 사업성패여부와 관련 깊은 사업관리 분야의 연구, 특히 사업관리의 기초를 제공하는 성과관리에 대한 연구는 상대적으로 미비한 실정이다. 본 연구는 입체복합공간 개발사업의 성공적인 추진을 위해 공공발주자 관점의 프로그램 성과관리 체계를 구축하는데 목적을 두고 진행되었다. 이를 위해 기존 문헌분석, 전문가 인터뷰 등을 실시하였으며, 입체복합공간 개발사업의 시설물 유형별 성과지표 및 리스크 연계 성과지표를 도출하고, 프로그램 성과점수 통합방법을 제안하였다. 본 연구에서 제안한 성과관리 체계는 기본계획 수립단계에서부터 유지관리단계까지 전 생애주기를 고려하고 있으며, 시설물 유형별 성과를 실시간으로 파악 및 평가가 가능한 구조를 갖추고 있다. 또한 리스크 연계 성과관리 체계는 주요 리스크요인별 대응주체 및 대응방안을 제공함으로써 리스크가 높은 성과지표의 지속적인 추적 및 통제를 가능하게 하였다. 본 연구는 도시재생사업의 전 생애주기에 걸친 성과관리 기술 향상을 통해 해당 분야의 효율성 제고에 기여할 것으로 기대되며, 향후 데이터웨어하우스 기반의 웹기반 성과관리시스템의 기본구조로 활용될 것이다. The market volume of urban regeneration projects has steadily increased, thereby mixed-use development also shows significant market growth. However, previous researches on urban regeneration mainly deduced suggestions and plans for institution improvement based on comparison between projects implemented the inside and outside of the country. Whereas, researches on project management closely related to project success were limited, particularly in performance management. Accordingly, this research aims at developing a program performance management framework for public clients so as to succeed mixed-use development projects. Through extensive literature review and expert interview, this research developed performance indices for diverse facilities, risk management framework and integrating method of program performance score. The proposed framework is able to consider total life cycle from basic planning to maintenance phase and to check real-time performance level. Moreover, risk management framework can periodically assess and control the level of inherent risks within performance indices. The results can contribute to improve existing performance management practices and be basis for a web-based system developed in future.

삼차원적층형 집적회로 구현을 위한 자기조직화정합기술을 이용한 고속.고정밀 접합기술

이강욱,Lee, Kang-Wook 대한용접접합학회 2011 대한용접·접합학회지 Vol.29 No.3

본 논문에서는 액체의 표면장력을 이용하여 복수의 KGD 들을 웨이퍼 상태에서 일괄접합함으로써, 높은 수율의 삼차원적층칩을 빠른 생산성으로 제작할 수 있는, 고속 고정밀 접합기술인 자기조직화정합 (Selfassembly) 기술에 대해 소개를 하였다. 본 연구실에서 개발한 self-assembly 기술을 적용하여 5mm 각(角) 크기의 칩 500개를 1초 이내에 평균 $0.5{\mu}m$ 정도의 높은 정밀도로 8인치 웨이퍼상에 일괄접합시키는데 성공하였다. Self-assembly 기술에 의한 삼차원 칩 적층방식은, 기존의 pick-and-place 적층방식에서 높은 정밀도의 접합특성을 확보하는데 필요한 공정시간을 혁신적으로 단축하는 것이 가능하고, 웨이퍼 레벨에서 복수의 KGD 들을 일괄접합하는 것이 가능하므로, 향후 TSV 기술의 양산화를 실현하는데 적합한 고속 고정밀 접합 기술로서 기대가 크다. 현재 본 연구실에서는 두께가 $50{\mu}m$ 이하의 얇은 LSI 칩 및 메탈범프가 형성된 LSI 칩 등을 이용하여, self-assembly 기술에 의한 삼차원 적층형 집적회로 구현을 위한 접합기술을 개발 중에 있다.

국내 토목산업의 설계-시공 균형발전 방안 도출에 관한 연구

이강욱,한승헌,박형근,진경호,Lee, Kang Wook,Han, Seung Heon,Park, Hyung Keun,Chin, Kyung Ho 대한토목학회 2013 대한토목학회논문집 Vol.33 No.1

최근 해외건설시장에서는 산업설비 분야를 중심으로 기획, 설계, 구매조달, 시공을 통합하는 EPC(Engineering, Procurement, & Construction) 형태의 발주물량이 증가하고 있으며, 토목산업 분야에서도 점차 Design-Build 발주사례가 증가하고 있다. 이러한 발주환경의 변화에 따라 프로젝트종합관리, 기본설계 등 건설엔지니어링의 중요성이 대두되고 있으나, 아직까지 국내 건설산업은 시공 위주의 산업구조에서 벗어나지 못하고 있다. 따라서 본 연구는 국내 토목산업의 엔지니어링 역량을 제고하고, 장기적으로는 설계-시공 균형발전을 위한 산업 차원의 발전방안을 제시하는데 목적을 두고 진행되었다. 이를 위해 우선 국내외 건설산업 현황을 분석하였으며, 국내 건설업체들의 인식수준 및 니즈 파악을 위한 설문조사와 발전방안의 실효성 검토를 위한 전문가 심층면담을 순차적으로 진행하였다. 본 연구에서 도출한 국내 토목산업의 설계-시공 균형발전 방안은 1) 토목설계업 관리체계 효율화, 2) 토목설계업 관련 제도 선진화, 3) 고부가가치 우수인력 육성, 4) 엔지니어링조합 및 컨소시엄 구성, 5) 해외건설 협력기구 조직 및 운영으로 구분하여 제시되었다. In the recent global construction environment, EPC contracts that integrate planning, design, procurement, and construction have been widely used for industrial facilities. Similarly, as the importance of the engineering capability such as project management consulting(PMC) and front end engineering design(FEED) has been increased, design-build contracts also have been gradually adopted for infrastructure projects. Whereas, the Korean infrastructure industry has fragmentary features which mainly emphasize on the construction sector. Therefore, this study aims at developing strategies for enhancing the engineering capability and for balancing the competitiveness between engineering and construction sectors in the Korean infrastructure industry. To this end, the authors first carried out market analysis for both global and domestic market. Then, a structured survey and expert in-depth interviews were sequentially performed in order to reflect practitioners' perspectives and needs for institutional strategies. As a result, five strategies drawn from this study are as follows: 1) rearranging the government's roles for supporting the engineering sector; 2) establishing institutional bases being compatible with global standards; 3) fostering value-added workforce for undertaking complex tasks; 4) constructing an consortium between an engineering association and general contractors; and 5) building a nationwide collaborative networks for overseas market expansion.

방사성 옥도 ( 131Ⅰ ) 가 Guinea Pig 의 난소 , 자궁 및 성주기에 미치는 영향

이강욱,윤화중,이규승 ( K . W . Lee,H . J . Yoon,K . S . Lee ) 한국축산학회 1973 한국축산학회지 Vol.15 No.2

The effects of radioiodine (^(131)I) administration on the histology of ovary and uterus and sexual cycle of the mature guinea pigs were observed. A single dose of 4.5 mC radioiodine per ㎏ body weight was injected subcutaneously. On the 1, 7, 14, 28, 42 and 56th day after radioiodine treatment, five treated and 5 control guinea pigs were sacrificed and their ovary and uterus were examined histologically. The variations in sexual cycle were examined by vaginal smear method through the experimental period. The results obtained were as follows: 1. No histological changes in the ovary were observed on the first day after treatment. On the 7th day after treatment, however, some atretic follicles were appeared and granulosa cells were changed with pyknosis and karyorrhexis. From the 14th day onwards, primordial follicles began to be damaged with a tendency to be severe gradually. After 42 days atretic follicles .and atrophy or hypoplasia of interstitial cells wore observed. On the 56th day after treatment, these ovaries began to be restored to the normal state. 2. The atrophy of myofibrils and multiplications of interstitial connective tissue of tunica muscularis were observed in the uterus from after treatment. 3. The change in sexual cycle of the treated guinea pig was apparent. The diestrus period extended in some guinea pigs on the 10th day after treatment. From the 21st day onwards, the distinct extension of diestrus period was observed.