기술금융기관의 효율성 분석사례

한상대(Sang-Dae Han),홍재범(Jae-Bum Hong) 한국인터넷전자상거래학회 2016 인터넷전자상거래연구 Vol.16 No.4

This case was to assess the efficiency of 26 technology appraisal centers(TAC) of Korea Technology Finance Corporation(KOTEC) and improve the efficiency. The research is based on the analysis of data collected from 2011 to 2013 with Data Envelopment Analysis(DEA). As the number of employees and business administrative expenses were used as input variables, leveraging the number of technology appraisal cases, the amount of technology credit guarantee provision and the amount of debt collection through exercising indemnity rights as well as revenues accruing from the technology appraisals were used as output variables. The purpose of those variables are aimed at representing the differentiated features of KOTEC from other conventional credit guarantee institutions. The analysis result showed that the efficiencies of TACs were high overall and improving in the way that their efficiency values show mostly over 0.9 on average. CCR model showed that the number of effective DMUs –represented as Technology Efficiency(TE) Value was 1 – was 7 in 2011 and 13 in 2013 while BCC model showed that the number of DMUs, whose values of Pure Technology Efficiency(PTE) was 1, was 15 in 2011 and 17 in 2013 respectively. The number of DMUs, whose value of Scale Efficiency(SE) is 1, had also been increased from 7 in 2011 to 13 in 2013. The number of DMUs was to show the status of “Constant Returns to Scale(CRS)” increased from 7 in 2011 to 13 in 2013. The number of DMUs was to show the status of “Increasing Returns to Scale(IRS)” was 16 in 2011 and 11 in 2013. The number on “Decreasing Returns to Scale(DRS)” had decreased from 3 in 2011 to 2 in 2013 respectively. Therefore, the number of efficient DMUs whose input was proportional to output –signaling the optimal efficient status- increased by 6. The number of DMUs which still had inefficiency and needed to step up the input had been decreased by 4 while the number of DMU which need to be scaled back the input is decreased by 1. Overall, efficiency of TACs has been increased. The result implies there are many DMUs which could increase the size efficiency, not through removing the inefficiencies by decreasing the input, but through scaling up the total size of output, leveraged by the consolidation of the internal analogous operation in order to make a synergy effect as well as the reduction of outsourcing tasks which have been related with claim collection process and hiring external technology appraisal experts. The benchmarked DMUs which could be the reference group were An-san, Sa-Sang and Sung-Nam TACs. They were located near to the industry complexes. So, their geographical conditions were well positioned to access to the technology-innovative corporations and venture startups, solidifying the fundamental to provide supply in accordance with the increasing demand of technology finance. The value of this study was that it analyses the efficiency of KOTEC takes the key role of technology financing based on technology appraisal. This research was distinctive in that it defined the input and output variables to measure the efficiency of credit guarantee institutions while earlier studies, most of which researched credit-evaluation based guarantee institutions, did not deal with those variables. It has implications which could be applied to evaluate the efficiency of public technology appraisal institution in the future.

강재 슬릿형 댐퍼를 부착한 철근콘크리트조 골조의 거동

신종익,이정한,송한범,강대언,오상훈,차승렬,이용재,김상대,이원호 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

This study investigates the performance of the reinforced concrete frame with the steel plate slit damper. The test was carried out to investigate the structural behavior between the reinforced concrete bare frame and the reinforced concrete frame with the steel plate slit damper. The test results showed that the energy absorption capacity of the damped-frame was several times larger than that of the bare frame. For the damage by the input energy is concentrated on the steel plate slit damper, the ductilities of the former structure were increased and the damaged frame can be reused after exchange the steel plate slit damper.

2-methoxy-1, 2-diphenyl diazoethane의 광화학분해에 관한 연구

韓性彬,金奎喆,成大東 濟州大學校 基礎科學硏究所 1990 基礎科學硏究 Vol.3 No.1

Photochemical decomposition of 2-meothoxy-1, 2-diphenyl diazoethane in methanol-acetonitrile binary solvent mixtures gave the O-H insertion, hydrogen-migration and phenyl-migration products to carbene. Kinetic data showes the maximun rate phenomenon at 70% (v/v) methanol content in methanol-acetonitrile binary solvent mixture. From Linear Solvation Energy Relationship by Taft's equation, the decomposition reaction of 2-meothoxy-1, 2-diphenyl diazoethane was affected not only by hydrogen bond acceptor basicity of the solvent, but also the polarity-polarizability ability of solvent a little bit.

유리폐기물과 하수슬러지 소각재의 고형화 처리연구

한상목,신대용,윤봉구,김승겸 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

하수슬러지 소각재, 폐유리분말 및 고로슬래그의 고형화에 의하여 건자재를 제조하였다. 하수슬러지 소각재는 SiO_2와 Al_2O_3가 75 wt%, Fe_2O_3가 8.21 wt%, 폐유리분말은 SiO_2 71.4 wt%, Na_2O 14.43 wt% 및 CaO 9.32 wt%, 고로슬래그는 SiO_2 33.4 wt%, CaO 41 wt% 및 Al_2O_3 14.5 wt%를 함유하여 세라믹스 제조원료로 사용이 가능하였다. 하수슬러지를 800℃에서 2시간 하소한 무기질분말을 분쇄하여 하수슬러지 소각재를 제조하였다. 30∼70 wt%의 하수슬러지 소각재, 30∼70 wt%의 폐유리분말 및 10∼30 wt%의 고로슬래그를 혼함하여 950∼1,100℃에서 2시간 소성하여 시편을 제조하였다. 하수슬러지 소각재 첨가량이 감소하고 폐유리분말의 첨가량과 소성온도가 증가하면 부피비중과 압축강도는 증가하였으나 기공률과 흡수율은 감소하였다. 1,050℃에서 소성한 시편(No. 1, 3, 5 및 7)의 부피비중은 1.70∼1.83, 기공률과 흡수율은 0.3∼2.4% 및 0.1∼1.5%, 압축강도 272∼323 kgf/㎠을 나타내었다. 고로슬래그를 첨가하여 1,100℃로 소성한 시편(No. 8, 9, 및 10)의 부피비중은 1.82∼2.11 및 압축강도는 350∼671 kgf/㎠이었다. 하수슬러지 소각재, 고로슬래그 및 시편의 중금속출량은 매립지 침출수배출 허용기준치보다 낮아, 본 연구에서 제조한 시편은 주변 환경에 해가 없어 건자재로의 이용이 가능하였다. An experimental study for the constructional material by solidification using sewage sludge ash, waste glass powder and blast furnace slag was carried out in the senses of waste materials disposal and utilization. The reusability of sewage sludge ash, waste glass powder and blast furnace slag as a raw material in the manufacturing process of ceramics was highly expected because the chemical compositions of these waste materials were mostly SiO_2 and Al_2O_3. Sewage sludge ash was fabricated by calcined at 800℃ for 2 hours and obtained by the crushing. The mixture of 30∼70wt% of sewage sludge ash, 30∼70 wt% of waste glass powder and 10∼30 wt% of blast furnace slag were heated at 950∼1,100℃ for 2 hours. The density and the compressive strength of specimen increased with increasing the sintering temperature and decreasing the addition amount of sewage sludge ash, No. 1, 3, 5 and 7 specimens showed the bulk density of 1.70∼1.83, porosity of 0.3∼2.4%, water absorption of 0.1∼1.5% and compressive strength of 272∼323kgf/㎠. And, that of the No. 7 specimen heated at 1,100℃ increased with increasing the addition amount of blast furnace slag, and for No. 8, 9 and 10 specimens, bulk density was 1.82∼2.11 and compressive strength was 350∼671 kgf/㎠. An extraction test for specimen to detect toxic materials showed below the permitted standard of land-filling extractable heavy metal contents. It was founded that the specimen were useful for the constructional materials.

침전법에 의한 CaCO₃:Sn^(2+) 형광체의 합성

한상목,신대용,윤봉구 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

침전법을 이용하여 CaCO₃를 합성한 후, 활성제로서 Sn^(2+)를 도핑하여 CaCO₃:Sn^(2+) 형광체를 합성하고 결정상과 형상 및 Sn^(2+) 첨가량에 따른 형광특성을 조사하였다. CaCl₂·2H₂O-(NH₄)₂CO₃수용액에 NH₄OH를 첨가하여 pH가 증가하면 입자의 응집이 관찰되지 않고 vaterite상이 장시간 안정하게 존재하였으며 pH 11에서는 1~3㎛의 순수한 구형 vaterite상이 얻어졌다. Vaterite인 구형 CaCO₃:Sn^(2+) 형광체와 열처리한 구형의 calcite형 CaCO₃:Sn^(2+) 형광체는 230 nm에서 최대로 여기되어 465 nm에서 최대 발광강도를 나타내었다. 합성된 CaCO₃:Sn^(2+) 형광체는 결정상과 관계없이 SnCl₂·2H₂O의 첨가량이 2 mol%일 때 가장 강한 발광강도를 나타내었으며, 능면체의 calcite형 CaCO₃:Sn^(2+)형광체는 열처리하여 안정화된 구형의 calcite CaCO₃:Sn^(2+) 형광체와 구형의 vaterite형 CaCO₃:Sn^(2+) 형광체에 비해 높은 발광강도를 나타내었다. Vaterite type of CaCO₃ was synthesized by using the precipitation method(CaCl₂-(NH₄)₂CO₃ system) with addition of NH₄OH at different temperature, time, pH and concentration. As a result, pure vaterite having spherical shape(0.1~10 ㎛ in size) was formed at the condition of high pH(>11) and high concentration(>5 M). CaCO₃:Sn^(2+) phosphors(spherical vaterite) were synthesized at CaCl₂-SnCl₂-(NH₄)₂CO₃-NH₄OH system. CaCO₃:Sn^(2+) phosphors(spherical vaterite) were transformed to CaCO₃:Sn^(2+) phosphors(spherical calcite) by heating at 550℃ for 10 min. The Particle sizes of CaCO₃:Sn^(2+) phosphors(rhombohedral calcite) and CaCO₃:Sn^(2+) phosphors (spherical vaterite) were 10~15 ㎛ and 1~3 ㎛ respectively. The excitation spectrum of CaCO₃:Sn^(2+) phosphors(spherical vaterite and spherical calcite) exhibited a maximum peak intensity at 230 nm with a narrow absorption band from 220 nm to 240 nm. At the excitation spectrum of 275nm, the emission spectrum of CaCO₃:Sn^(2+) phosphor (rhombohedral calcite) with SnCl₂of 2 mol% exhibited a maximum peak intensity at 465 nm of bright blue fluorescence. Also, the emission spectrum of CaCO₃:Sn^(2+) phosphors(spherical vaterite, spherical calcite) exhibited a maximum peak intensity at 465 nm but exhibited weak peak intensity than CaCO₃:Sn^(2+) phosphors(rhombohedral calcite).

마산만의 단기 오염확산 특성

한성대 慶南大學校 附設 工業技術硏究所 1990 硏究論文集 Vol.8 No.-

2차원 단기 확산모델을 구성하여 마산만의 오염물질의 확산특성을 조사하였다. 확산모델의 기본입력으로 필요한 동수력학적 정보는 기 수행된 2차원 조석수치모델에서의 결과를 사용하였다. 확산모델로서 가상적인 오염물질을 만내 11개 지점에 순간 투입하여 평균대조와 평균소조시의 상황하에 오염물질이 단기적으로 확산·이동되는 과정을 산정하였다. 이의 초기결과가 제시되었으며, 추후 연구과제가 토의되었다. 이 연구의 궁극적인 목표는 마산만내의 오염물질의 장기적인 확산과정을 이해하고자 하는데 있다. In this study was made to investigate the pollutant diffusion characteristics of Masan Bay system utilizing two-dimensional short-term diffusion model. The hydrodynamic results from the two-dimensional numerical tidal model were used as basic input data for diffusion model. The diffusion model simulating the short-term pollutant transport was established and used to investigate the dispersal pattern of the hypothetical pollutant input under the mean spring and the mean neap tidal condition. The hypothetical condition was investigated by assuming instantaneous release of waste matter at 11 prospective source points in Masan Bay. Some of preliminary model results are presented and indication of further studies are discussed. The objective of this initial study is to investigate the long-term pollutant diffusion process in Masan Bay.

재활용 폐페인트를 이용한 방청페인트 개발연구

한대상,정재헌,조홍식,조창제,이종무,장상목 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

In this study, The method to produce anticorrosive paint using reproductive wastepaint was investigated. The liquid-phase resin, BHO-500 and powder-phase paint BHO-300 were produced through wastepaint reproductive process. BHO-500 and BHO-300 could be replaced respectively polyvinylchloride resin and filler, which are thr components of anticorrosive paint. The properties of the anticorrosive paint produced through this process were excellent in comparison with the existing anticorrosive paint.

鎭海灣의 長周期 擴散特性

한성대 慶南大學校 附設 工業技術硏究所 1991 硏究論文集 Vol.9 No.-

2차원 장기 확산모델을 구성하여 진해만의 확산특성을 조사하였다. 확산모델의 기본 입력으로 필요한 동수력학적 정보는 기 수행된 2차원 조석수치모델에서의 결과를 이용하였다. 전 해역에 보존농도를 초기 부여하여 6일간의 확산과정을 산정하였다. 이의 초기결과가 제시되었으며, 추후 연구과제가 토의되었다. 이 연구의 궁극적인 목표는 전해만내의 오염물질의 장기적인 확산과정을 이해하고자 하는 데 있다. In this study was made to investigate the pollutant diffusion characteristics of Jinhe Bay system utilizing two-dimensional Long-Term Diffusion Transport Model. The hydrodynamic results from the two-dimensional numerical tidal model were used as basic input data for diffusion model. Conservative matter such as salinity that are initial released on whole bay system, and calculated the slowly varying diffusion process after 6 days, Some of preliminary model results presented and indication of further studies are discussed. The objective of this initial study is to investigate the long-term pollutant diffusion process in Jinhe Bay.

뇌혈관의 미만성 방추형 동맥류 : 1예 보고

한기석,신환식,박길선,김대영,김성진,차상훈 충북대학교 의과대학 충북대학교 의학연구소 1998 忠北醫大學術誌 Vol.8 No.2

저자들은 뇌동맥의 광범위한 확장을 보이는 희귀한 방추형 동맥류의 증례를 경험하였기에 전산화단층촬영영상과 자기공명영상 소견을 중심으로 보고하고자 한다. 49세 남자환자로 20 년전 고혈압으로 진단 받고 치료받던 환자로 현기증과 언어장애로 내원하였다. 내원 후 시행한 조영증강후 뇌 전산화 단층촬영에서 뇌저동맥, 중뇌동맥, 후뇌동맥 등이 확장되어 있고 구불구불하였으며, 확장된 뇌저동맥은 뇌교를 압박하고 있었다. 삼차원 구성기법을 이용한 전산화단층촬영 혈관조영술에서 뇌동맥이 광범위한 확장을 쉽게 이해할 수 있었다. 자기공명영상 T2강조영상에서 확장된 뇌동맥이 신호소실로 보였으며, 뇌저동맥이 뇌교를 오른쪽으로 압박하고 뇌교의 중앙부분에 뇌경색이나 허혈로 보이는 높은 신호강도를 보이는 부분이 있었다. 미만성 방추형 동맥류에 있어 전산화 단층촬영, 자기공명영상은 동맥확장의 범위와 정도를 평가하는데 도움을 주며, 혈전형성, 허혈, 주위 뇌조직의 압박 등의 소견을 잘 보여준다 Authors report a case of diffuse fusiform aneurysm of cerebral arteries, focusing findings of CT and MRI. A 49 year old male suffered by hypertension was presented by dysarthria, right hand tingling sensation and dizziness. Contrast media enhanced CT images showed markedly dilated and tortuous basilar artery and middle, posterior cerebral arteries. The location and extent of arterial dilatation was well depicted by CT angiogram. On T2 weighted MR image, dilated arteries were depicted as signal void and the compressed pons by dilated basilar artery and adjacent ischemic changes were also well depicted. CT and MRI are excellent imaging modality in the evaluation of extent and degree of diffuse fusiform aneurysm of cerebral arteries.

증산고령토를 이용한 경량건축자재 제조

한상목,윤창호,신대용,김상진 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-

저급의 점토질 원료인 증산 점토와 석탄폐석인 셰일를 이용하여 조성, 열처리 온도 및 열처리 시간 등의 반응인자를 변화하여 다공성의 경량건축자재를 제조하여 이들의 물리적 성질인 부피비중, 흡수율 및 기계적 강도를 측정하였다. 그 결과 증산점토 단일성분과 30wt%의 셰일을 첨가한 시편을 1200℃에서 30분간 급속가열하여 부피비중이 0.31g/cm³, 흡수율 1.0 % 및 압축강도가 69 kg/cm²인 다공성의 경량건축자재를 제조하였다. Suitability of low grade clay of Jungsan and shale as raw materials for light weight constructional material was examined. In order to find optimum manufacturing conditions with composition, heating temperature and heating time were varied and their effects on physical properties, such as bulk density, water absorption and mechanical strength were measured. The results obtained with a light weight constructional materials with one component of clay and 30wt% of shale added in clay heated at 1200℃ for 30 min, and the rapid-heating was more than the slow-heating for bloating. The light weight constructional material having bulk density of 0.31 g/cm³, water absorption of 1.03% and compressive fracture strength of 69 kg/cm² obtained.