Ethanol이 내당능과 Insulin 반응에 미치는 효과

이형호 부산대학교 1973 국내박사

Caerulein으로 유발된 흰쥐의 급성 췌장염에 대한 銀茴蟠葱散의 효과

이형호 東新大學校 2009 국내박사

In this study we aimed to investigate the effect of EunHoeBanChongSan (EBS) on caerulein-induced acute pancreatitis (AP) by detecting oxidative stress markers and performing histopathological examination. Thirty adult male Sprague-Dawley rats were divided into five groups as follows: normal (NOR), caerulein-induced (CON), caerulein+EBS (130㎎/㎏, EA), caerulein+EBS (260㎎/㎏, EB) and caerulein+EBS (520㎎/㎏, EC) groups. Pancreatic tissues of rats from all groups were removed for apoptosis and light, and electron microscopic examination. Blood of rats from all groups were obtained for oxidative stress markers and pathological examination. Pancreatic oxidative stress markers were evaluated by the measurements of superoxide dismutase (SOD) and catalase (CAT). Serum amylase, Platelet activating factor (PAF), and Interleukin-6 (IL-6) levels were determined spectrophotometrically. The ratio of pancreas/body weight was increased significantly (p<0.05) in the CON compared with NOR, but decreased significantly (p<0.05) in EA, EB, EC groups compared with CON. Caerulein administration resulted in a significant increase (p<0.05) in amylase, but EBS reduced the levels of these enzyme. The levels of Platelet activating factor (PAF) were increased in CON compared with NOR, but decreased in EA and EB groups compared with CON at 2hrs. Interleukin-6 (IL-6) levels were increased significantly in CON compared with NOR, but reduced in EA, EB, and EC groups at 24hrs groups. The SOD and catalase activities were decreased in CON, but catalase activities of EB and EC groups increased than that of CON. EBS is potentially capable of limiting pancreatic damage produced during AP by restoring the fine structure of acinar cells and tissue, therefore we concluded that EBS may have beneficial effects in the treatment of caerulein-induced AP.

韓國의 西海岸에 發達한 海蝕崖에 關한 地形學的 硏究

이형호 慶熙大學校 1984 국내박사

리모델링 선호자의 의식 연구

이형호 동의대학교 대학원 2008 국내석사

지금까지 우리나라의 주택정책은 주택부족문제를 해결하기 위한 정책이 대부분이었다. 주택보급률 확대를 위해 신규주택 공급에 비중을 두어 양적 팽창을 해온 결과 전국의 주택보급률은 현재 100%가 넘는다. 이에 따라 정부도 주택정책을 신축 위주가 아닌 기존주택의 관리·개선에 역점을 두고 있고, 주택법등을 개정하여 재고주택의 관리와 운영을 중시하는 둔 주택정책을 펴고 있다. 1960년대 아파트가 등장한 이후 공동주택은 급속도로 건설되어 현재 전국의 주택보급률은 이미 포화상태에 있고, 80년대 초반까지 지어진 아파트들은 대부분 저밀도 저층 단지로 조성되어 있고, 건물의 물리적 수명은 상당시간 남아 있지만 생활수준의 향상으로 인하여 사회 경제적 수명이 다한 상태여서 주거환경 개선이 시급한 실정이다. 그러나 이제는 주택을 공급할 수 있는 방안을 연구하기 보다는 공급되어 있는 주택을 어떻게 관리해 나가야 할지 고려해야 할 시점이다. 따라서 신규 공급을 수반하는 재건축 보다는 리모델링이 현재 더 적합한 주거환경 개선 방안이라 하겠다. 부산시의 경우만 보더라도 택지부족으로 신규 주택 공급에 한계가 있을 뿐 아니라 대부분의 택지 지형이 고지대로 입지여건이 열악하여 재건축 사업이 추진되기가 무척 어려워 부산시의 경우에서도 리모델링이 재건축보다 더 적합한 주거환경 개선 방안이라 하겠다. 본 연구는 부산시 수영구에 위치한 삼익비치파트의 주거환경 개선 사업에 관한 연구다. 현재 삼익비치 아파트는 재건축과 리모델링이 동시에 추진되고 있어 주거환경 개선방안으로 재건축과 리모델링을 비교하는 좋은 표본이 될 수 있다. 현재 삼익비치아파트 3060세대 중 대부분의 사람이 재건축을 통해 주거환경을 개선하고 부수적으로 집값 상승에 따른 경제적인 수익을 생각하고 있으나 일부 주민들은 재건축에 반대하고 리모델링을 주거환경 개선의 또 다른 대안으로 생각하고 있다. 이에 본 연구는 대다수의 주민들이 재건축만이 주거환경을 개선하는데 효과적이고 큰 경제적 이득을 줄 거라는 의식이 팽배한 상황 하에, 일부의 사람들은 어떤 이유로 리모델링을 추진하려고 하는지에 관한 이유를 설문조사와 인터뷰를 통해 의식을 연구하고자 함이다. 본 연구는 1장에서는 연구의 배경과 목적을 제시했고, 2장에서는 주거환경 개선 방안 중 재건축과 리모델링에 관한 정의와 절차와 알아보았으며, 재건축과 리모델링의 장단점을 알아보았다. 또한 선행연구의 고찰을 통해 지금까지의 대부분의 리모델링·재건축 연구가 경제성과 환경성 분석에 국한되어왔다는 점을 알 수 있었다. 3장에서는 공동주택 리모델링의 사례분석 및 추진현황에 대해 논했다. 3장의 사례분석을 통해 재건축은 대부분이 세대수 증가를 통한 주거환경 개선 방식이므로 재건축 보다는 리모델링이 현재의 상황에선 더욱 합리적이라는 결론을 도출 할 수 있었다. 또한 리모델링을 통한 가격상승 기대에 대한 질문엔 부산지역 시민들의 52.2% 이상이 투자비 이상으로 아파트 가격 상승 할 수 있을 것이라는 조사와 리모델링 시행 완료 사례를 통해 리모델링이 투자성에 대한 가치도 있음을 확인 할 수 있었다. 4장에서는 부산시 수영구에 위치한 삼익비치아파트 주민들을 상대로 설문조사와 전문가 인터뷰에 대한 결과를 논하였다. 설문은 크게 리모델링시 요구사항과 리모델링에 대한 정책 그리고 리모델링에 대한 투자성에 관한 질문을 했고 중복문항을 통한 유효성 검증을 통해 결론을 도출했다. 5장에서는 4장의 설문조사 결과를 통해 현 시점에서 재건축보다는 리모델링이 주거환경 개선 방안으로 더욱 적합하다는 결론을 내렸고, 삼익비치 아파트 리모델링 선호자들의 의식적인 측면에서 보더라도 리모델링이 좋은 대안이 될 수 있음을 결론으로 도출하였다. The domestic housing market reached the limit in the quantitative expansion due to the large-scale multi-family housing supply project such as constructing 2,000,000 houses, which was started in the end of the past 1980s, thus the oversupply phenomenon has being visualized such as the unsold situation in recently a few years. Accordingly, the currently domestic housing market reached the ceiling that cannot be sustained any more only with new construction. Also, the existing multi-family housings are approaching deterioration such as a drop in function currently caused by physical characteristics and failing to cope with a rapid-changing speed in industrial development and social structure. The current multi-family housing was considerably improved the housing performance due to enhancement in life level, progress in informatization, and a change in life consciousness, and is also being increased dwellers' needs. Accordingly, in order to improve performance in the aged multi-family housing, the reconstruction and remodeling businesses are being emerged. However, as reconstruction is a concept that removes all the conventional buildings and builds newly, the problems are immanent such as the occurrence of resources extravagance according to removing structures and equipment elements still available for use, and as the consumption of unnecessary resources in the process of newly building again. Thus, at this point of time, remodeling needs to be selected as a method of improving the housing environment, rather than reconstruction. According to the recently social flow, the researches on reconstruction and remodeling are being steadily announced. However, the decision-making is unreasonable, which is just based on economical efficiency and environmental feasibility that are possessed by reconstruction and remodeling. Accordingly, this study extracted Samik Beach Apartment as sample, where is located in Suyeong-gu, Busan-si, which is being enforced simultaneously the reconstruction and remodeling, and tried to research into the cognition of those who prefer home remodeling. The majority of residents in the above sample subjects are still believing that reconstruction will bring about more economic profits rather than remodeling, and think that only reconstruction will be able to improve the aged apartment. However, through this study, it could be known that remodeling also has economic benefits more than reconstruction, and that housing environment can be improved through surveying residents' demands. In case of Samik Beach Apartment, given examining a reason that remodeling is more reasonable than reconstruction in the conscious part, not in the economic or environment aspect, Samik Beach Apartment has a very great value in the prospect right compared to other district. Given seeing on the basis of 48 pyeong, there is the price gap in more than 100 million won between the building of being seen the sea and the building of being inverse. However, when reconstruction is enforced according to the currently reconstruction regulation, the residents, who have the existing prospect right, comes to be difficult to be recognized the value of the prospect right. Samik Beach Apartment now needs to be improved the housing environment regardless of reconstruction or remodeling. However, a minority of inhabitants, who have the prospect right, shouldn't be coerced the selection of reconstruction by the logic of a majority who prefer reconstruction. That is because remodeling cannot be a good alternative plan. The contents, which were elicited in this study, are the analysis results on the corresponding specific unit buildings, thereby containing difficulty for generalization of the research results. Consequently, as for a research that will be performed in the future, a research with diverse cases will need to be progressed, which can supplement the above limitations.

IoT 기반 운전자 상호 연동 스마트 운전자 케어 시스템 연구

이형호 공주대학교 대학원 2018 국내석사

쾌적한 주행 환경을 유지하고 사고를 예방하기 위해 운전자의 상태 변화 및 주행 환경에 실시간으로 대응할 수있는 스마트 운전자 케어 기술. 이를 위해 블랙 박스 게이트웨이에서 생체 정보 및 차량 환경 정보를 모니터링하고 음성 인식 및 수동 조작을 통해 차량의 창문, 공조기를 제어하는 ​​기술을 개발했습니다. 또한, 운전 중 졸린 운전을 방지하기 위해 비상 사태시 자동으로 창문을 열고 닫음으로써 운전자 보호 서비스를 제공하고자합니다. 주요 연구 1. 쾌적한 주행 환경 유지 및 사고 예방을위한 운전자 환경 변화 및 운전 환경 변화에 실시간으로 대응할 수있는 스마트 운전자 관리 기술 2. 음성 인식 소프트웨어 개발을 통한 차량 제어 처리, 생체 정보 수집 모듈의 구현 및 모니터링, 비상 사태 , 알람 서비스, 3. CAN 2.0 기반의 편의 장치 제어 (에어컨, 창문, 헤드 라이트 제어), 환경 정보 수집 모듈 통합 및 운전자 안전을위한 주요 서비스 연구 이 연구 결과를 바탕으로 운전자가 자율 주행 환경에서 보다 편안하게 주행하고 안전하게 운전할 수 있기를 바랍니다. Smart driver care technology that can respond to changes of driver 's condition and driving environment in real - time to maintain comfortable driving environment and prevent accidents. To this end, we have developed a technology to monitor biometric information and vehicle environment information on a black box gateway and to control the windows, air conditioners, and headlights of vehicles through voice recognition and manual operation. In addition, we would like to provide driver care service by opening and closing the windows automatically in case of emergency in the driver to prevent sleepy driving. The main research Smart driver care technology capable of real-time response to changes in driver's condition and driving environment for maintenance of comfortable driving environment and prevention of accidents, Vehicle control processing through development of speech recognition software, Implementation and monitoring of bio information collection module, Emergency situation, Alarm service, ◦ Convenience control module research (vehicle control)   Through CAN 2.0-based convenience device control (air conditioner, window, headlight control), integration of environmental information collection module and major service research for driver safety The driver can feel - Integrated Monitoring App (APP) - Vehicle control service through voice recognition - Drowsiness prevention and emergency alert service Based on this research, we hope that the driver can drive more comfortably and drive safely in the autonomous driving market.

河道 彎曲部에 設置된 水制의 水理機能에 관한 硏究

이형호 晋州産業大學校 2005 국내석사

Heat and momentum transport analysis of KSTAR plasmas with Charge Exchange Spectroscopy

이형호 과학기술연합대학원대학교 2013 국내박사

The plasma rotation or its shear plays an important role for the plasma confinement and stability. In general, the external momentum sources such as uni-directional NBIs are necessary to drive the plasma rotation. But, it has been frequently observed that the plasma rotation can be changed significantly without any external momentum sources. Although many experimental and theoretical researches have been dedicated to study this plasma rotation without any external momentum source, it is not fully understood yet. Still, comprehensive heat and momentum transport study are demanded to understand the physics of the plasma rotation. Since the measurement of the ion temperature and plasma rotation profiles are very necessary for the heat and momentum transport study of plasma, the charge exchange spectroscopy (CES) system has been developed for the measurement of the ion temperature and toroidal rotation profiles of the KSTAR plasmas. The KSTAR CES system which measures the C VI 5290.5 Å (n=8→7) charge-exchange spectrum signal is featured with its high time resolution of 10 ms and spatially resolved 32 channels. The spatial channels are allocated at every 5 cm in core region and 5 mm in edge region for full profile measurement. The KSTAR CES measurement has been applied to investigate the dynamics of the ion temperature and toroidal rotation profiles for various KSTAR plasmas. Heat and momentum transport analysis of the KSTAR L-mode and H-mode plasmas has been conducted along with the measured ion temperature and toroidal rotation profiles. Empirical transport analysis code has been developed for the transport analysis of the KSTAR plasmas. The quantitative comparison of the heat and momentum transport physics between the L-mode and H-mode plasmas has been achieved by the empirical transport analysis code. The detailed momentum transport study by considering inward momentum pinch and residual stress has been conducted. Finally, it has been frequently observed that the toroidal rotation speed is reduced regardless of the direction of the toroidal rotation when the on-axis ECRH heating is applied in the KSTAR plasmas. Moreover, it has been found that toroidal rotation damping is accompanied by (m, n) = (1,1) internal kink modes which are localized in the central region of the plasma very frequently. The neoclassical toroidal viscosity torque has been proposed to explain the reduction of the toroidal rotation since the neoclassical toroidal viscosity torque can be enhanced if the toroidal symmetry is broken by the internal kink modes.

EFFECT OF NUCLEOTIDE SUPPLEMENTATION ON GROWTH PERFORMANCE IN PIGS

이형호 단국대학교 2016 국내박사

EXPERIMENT 1: EFFECT OF NUCLEOTIDE SUPPLEMENTATION ON PERFORMANCE AND BLOOD PROFILES IN LACTATIONG SOWS AND SUCKLING PIGLETS The objective of the present study was to analyze the effect of nucleotides on reproductive performance, growth performance, fecal score, fecal microflora and blood profiles in lactating sows and their piglets. A total of 15 (LY) sows were allocated to 1 of 3 treatments with 5 replicates and the average parity was 4.13. Dietary treatments include: 1) CON: basal diet; 2) T1, CON + 0.5% nucleotide; 3) T2, CON + 1.0% nucleotide. The statistical analysis was performed using randomized design by GLM procedure. In this study, significant difference (linear) was observed among treatments, including litter size (p=0.0179), live piglet (p=0.0117), and piglet survival (p=0.0488). The BW of weanling pigs shows no significant difference observed among the treatments. The ADFI was not altered during gestation, but shows significant linear increase (p=0.0467) during lactation. The back fat thickness during weaning showed a significant effect which increased linearly (p=0.0468). The BW of piglets at wk 2 shows a significant difference quadratically (p-0.0167) among the treatment groups. Similarly in weanling, the BW of piglets showed linearly significant increase (p=0.0029). The ADG of piglets during initial stage to wk2, showed both linear (p=0.022) and quadratic (p=0.0044) significant difference among the treatment groups. Also there was a linearly significant difference from wk 2 to weanling period (p=0.0277) and total ADG (p=0.0014) among treatments. Increase in (p>0.05) fecal lactobacillus concentration (p=0.0072) and decrease in fecal E.coli concentration was found linearly (p=0.0104). The epinephrine and norepinephrine concentrations were affected by the dietary treatments and shows a linear decrease in epinephrine (p=0.0205) and norepinephrine (p=0.06163). Also significant linear decrease in the level of cortisol (p=0.0277) was observed. The results of this study demonstrate the importance of increased levels of total nucleotides in the diet of sows to improve sows and piglet performance. EXPERIMENT 2. EFFECT OF NUCLEOTIDE SUPPLEMENTATION ON GROWTH PERFORMANCE, BLOOD PROFILES AND FECAL SCORE IN WEANLING PIGS The aim of the current study was to analyze the effect of nucleotide as the dietary supplement for growth performance, blood profiles, and fecal score in the weanling pigs. A total of 120 weanling pigs [(Landrace x Yorkshire) x Duroc] with an average initial body weight (BW) of 6.29 ± 0.71 kg and 28 d of age were used in a 42 days experiment. Pigs were allotted as 5 pigs per pen and 8pen per treatment. Dietary treatments include: T1 (CON), Basal diet; WNT1, Basal diet + 0.5% nucleotide; WNT2, Basal diet + 1.0% nucleotide. The statistical analysis was performed using randomized design by GLM procedure. The initial BW was measured at d14, d28 and d42. Significant increase in BW was observed in d14 (linear, p= 0.0001; quadratic p=0.0195), d28 (linear, p=0.0003) and d42 (linear, p=<0.0001 and quadratic, p=0.0462) of the treatment groups. ADG, ADFI and G/F ratio was measured in phase I, II, III and in overall experimental periods. Among these, ADG was found to be significantly increased in phase I (p=0.0001, linear; p=0.0165; quadratic), phase II (p=0.0366, linear), phase III (p=0.0121; linear) and overall period (p=0.0001, linear; p=0.0489; quadratic). ADFI showed significant increase in phase III(p=0.0492, linear) and overall period (p=0.0215, linear). The G/F ratio was found to be significant in overall period (p=0.0398) linearly among the treatment groups. The level of epinephrine (p=0.0305), norepinephrine (p=0.0378) and cortisol (p=0.0204) were found to be significantly decreased linearly. Thus, we can think that supplementation of dietary nucleotide can affect the growth performance and blood profiles in weanling pigs. EXPERIMENT 3: EFFECT OF NUCLEOTIDE SUPPLEMENTATION IN WEANLING PIGS CHALLENGED WITH LIPOPOLYSACCHARIDE (LPS) The study aims to analyze the effect of nucleotide on growth performance, blood profiles, rectal temperature, excreta microflora and the fecal score in the weanling pigs challenged with LPS. A total of 40 pigs with an average initial body weight (BW) of 6.29 ± 0.71 kg and 28 d of age were used in a 42 days experiment in 3 different hybrid [(Landrace x Yorkshire) x Duroc ] weanling pigs. Pigs were fed 0 or 0.5% Nucleotide diet for 42 d. At 4th week, half of the pigs (n = 5) from each treatment were injected LPS intraperitoneally. Dietary treatments include: T1, Basal diet with Saline; T2, Basal diet with lipopolysaccharide; T3, Basal diet + 0.5% nucleotide with Saline; T4, Basal diet + 0.5% nucleotide with lipopolysaccharide. Pigs were allocated to 1 of 4 treatments (2 replicates per treatment; 5 pigs per pen). All data were analyzed by 2x2 factorial arrangements of treatments. The body weight in the weanling pigs did not show any improvement after the treatment. The ADFI of the weanling pigs during phase III (p=0.0364; linear and p= 0.0104; quadratic) and overall period (p=0.0463;linear) significant elevation when compared to rest of the experiment (P <0.05). The ADG of the weanling pigs showed significant difference with dietary supplementation in phase III (p= 0.0380, linear) and overall experimental period (p= 0.0123, linear). The G/F ratio of the weanling pigs shows significant improvement by the nucleotide supplementation during overall experimental period (p= 0.0276, linear). The IgG level was almost increased similarly during whole experimental period for 0.5% nucleotide supplementation group either there was LPS or saline injection when compared with 0% nucleotide supplementation. The WBC levels were found to be elevated for 0.5% nucleotide supplementation for both LPS and saline treatment when compared to 0% nucleotide supplementation for the overall experiment. The Lymphocyte levels observed to be highly elevated for 0.5% nucleotide fed group with saline injection than the rest of the treatments for the entire test period. The rectal temperature checked at 2hr, 6hr and 10hr showed significance difference (P <0.05). The excreta microflora in weanling pigs before LPS challenge showed significance for Lactobacillus (P <0.05). The fecal score in the weanling pigs gave a significant difference after the treatment on the week 4 and week 5 (P <0.05).Thus dietary nucleotide to piglets could alleviate the immunological responses to LPS challenge in the blood and show some positive response in growth. EXPERIMENT 4: EFFECT OF NUCLEOTIDE SUPPLEMENTATION ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY AND BLOOD PROFILES IN GROWING PIGS The aim of present study was to evaluate the effects of nucleotide supplementation on growth performance, nutrient digestibility and blood profiles in growing pigs. A total of 120 growing pigs [(Yorkshire × Landrace) × Duroc] with an average BW of 25.76 ± 1.83 kg were used. Pigs were allocated to 1 of 4 treatments by body weight and sex (3 barrows and 2 gilts per pen; 6 pen per treatment). Dietary treatments include: 1) CON: basal diet; 2) GAT1: CON + anti VS-2 Inoculate 0.5% / FMD vaccine; 3) GNT1: CON + Nucleotide 0.5% / FMD vaccine; and 4) GNT2: CON + Nucleotide 1.0% / FMD vaccine. The FMD vaccination was inoculated to all pigs on 84th day (experiment wk 2). Body weight and feed consumption were measured initially and in 6wk to monitor the average daily gain (ADG), average daily feed intake(ADFI) and gain:feed (G:F) ratio. Apparent total tract digestibility (ATTD) of DM and N were analyzed. The serum parameters (cortisol, epinephrine and norepinephrine) were measured. The statistical analysis was performed using randomized design by GLM procedure of SAS. At the beginning of the trial (initial), and at wk 6, the BW of growing pigs showed no significant differences among the treatments. During this overall periods, the ADG of growing pigs were found to be significantly increased (p=0.054), and the pigs had a higher G/F ratio in GNT groups (p= 0.025, linear). The digestibility of DM showed significant increase in GNP groups (p= 0.018, linear), when compared to control. After injection, there was a significant decrease (linear) in levels of cortisol (p=0.012) and epinephrine (p=0.011) in GNT groups. GNT groups also showed significant decrease in both cortisol (p=0.015) and epinephrine (p=0.021) when compared to GAT1. Moreover, the norepinephrine concentrations were unaffected by the dietary treatments. Therefore in our study, the nucleotide supplementation could have an effect on ADG, G/F ratio, DM, cortisol and epinephrine levels in growing pigs.

Y-type perfobond rib 전단연결재의 피로성능 평가를 위한 실험적 연구

이형호 연세대학교 공학대학원 2014 국내석사

Y-type perfobond rib 전단연결재는 기존 전단연결재의 시공성과 전단성능을 향상 시킨 새로운 형태의 전단연결재이며, 최근 다양한 연구를 통하여 우수한 전단성능이 확인되었다. 하지만 Y-type perfobond rib 전단연결재의 피로성능에 관한 연구는 부족한 실정이다. 본 연구에서는 Y-type perfobond rib 전단연결재의 피로성능을 평가하기 위하여 피로실험, 잔류강도실험을 수행하였다. 피로실험과 잔류강도실험에 사용된 기준 실험체는 교량용 강거더-콘크리트바닥판 합성거더에 대한 적용성을 고려하여 선정되었다. 피로실험 결과에 의하면 도로교 설계차량하중에 의한 전단력의 10배 수준에서 210만회의 피로하중에도 피로균열이 발생하지 않았으며, 20배 수준의 하중조건에서도 100만회의 피로하중에서 피로균열이 발생하였다. 피로균열은 발생초기에는 15° 각도로 일정길이 성장하다가, 이후에는 Y-type perfobond rib를 관통하는 방향으로 진행하였다. 피로실험체의 균열발생 위치는 유한요소해석과 Push-out 실험을 통해 분석한 응력집중 위치와 동일하게 다웰홀의 중심으로부터 15° 위치에서 발생하는 것을 확인하여 Y-type perfobond rib 전단연결재에서 피로균열에 가장 취약한 위치를 분석하였다. 잔류강도실험에서는 도로교 설계하중의 2배에 해당하는 하중범위와 10만회의 반복횟수의 피로하중을 받은 Y-type perfobond rib 전단연결부에서 강도감소가 발생하지 않았음을 확인하였다. 피로실험을 통하여 Y-type perfobond rib 전단연결재가 상당히 높은 수준의 피로강도를 가지고 있는 것을 확인 하였으며, 이는 Rib 절곡작업에서 발생한 소성압축변형이 피로하중에 의한 인장변형을 상쇄시키기 때문인 것으로 판단된다. 잔류강도 실험을 통하여 콘크리트에 매입된 경우에서도 강거더-콘크리트바닥판 합성거더의 전단연결부로써 충분한 피로강도를 확보하고 있는 것을 확인하였다.

最高經營者가 企業 競爭力에 미치는 影響 : 韓國 中小企業을 中心으로

이형호 건국대학교 경영대학원 2008 국내석사

Recently medium & small enterprise have been decreasing their competitiveness due to bad economy and worse business environment such as domestic inflation and price of raw materials soaring. The competitiveness of Asia medium & small enterprise has reported that the international assessment on the competitiveness of small companies is being considered greatly because the gap between China and Korea is increasing more and more. Therefore, This study examined a special quality of CEO of medium & small enterprise and competitiveness of the companies, thinking the CEO’s features as alternatives on the competitiveness improving. In addition, I inspected how the qualities of the CEO will have influence on the companies based on such a study above. I could know the result comes off that risk-taking, characterized as psychological feature of the CEO, on the competitiveness of quality, manufacturing, fund-carrying, human resource, marketing and sales greatly shows high performance. Perseverance over unclear things also gave heed and had results in competitiveness of quality, manufacturing, fund-carrying, human resource, marketing and sales in the change of business environment. In the case of communication, the feature of competency of CEO gave attention and resulted in the competitiveness of product, cost, manufacturing, human resources and in the case of decision making, the competitiveness of manufacturing, fund-carrying, marketing, sales and technique gave heed. I studied if the feature of background and career of CEO, in the case of education, is high to be related to present business, but it showed there are no relations between majors and the competitiveness. In the case of career, I inspected based on business experiences in the previous work. Consequently, we could see the more CEO has enough experiences related to present work in the previous one, the more business competency is surely high and such a quality works to lower possibility of failure and to reinforce small company’s competitiveness. I gave a plan to raise competitiveness of medium & small enterprise based on the results. Firstly, I presented with feature development for CEO to increase the competitiveness. Secondly, I proposed growing CEO’s role and expanding cooperation among CEOs in the world market. 최근 대외환경의 급변과 국내 인플레이션, 원자재가격의 상승 등 경영환경 악화로 인해 중소기업의 경쟁력이 지속적으로 감소하고 있다. 최근 발표된 아시아 중소기업 경쟁력에서도 중국과의 격차가 지속되고 있어 우리나라 중소기업 경쟁력에 대한 국제적인 평가가 도마 위에 오르고 있다. 이에 본 연구에서는 중소기업 최고경영자의 특성이 이러한 중소기업 경쟁력 향상을 위한 대안으로 생각하고 이를 위해 중소기업 최고경영자의 특성 및 중소기업 경쟁력에 대한 이론적 고찰을 실시하였다. 또한 이러한 이론적 고찰을 바탕으로 최고경영자의 특성이 중소기업 경쟁력에 어떠한 영향을 나타내는지 살펴보았다. 이 결과 중소기업 최고경영자의 심리적 특성인 위험감수성은 품질경쟁력, 제조경쟁력, 자금동원경쟁력, 인적자원경쟁력, 마케팅·영업경쟁력에 보다 높은 성과를 나타내고 있음을 파악할 수 있었다. 또한 모호성의 인내는 경제환경 변화에 있어 제품품질경쟁력, 원가경쟁력, 제조경쟁력, 인적자원 경쟁력, 자금동원경쟁력, 마케팅·영업경쟁력에서 유의하다는 결과를 도출하였다. 최고경영자의 역량특성은 의사소통의 경우 제품경쟁력, 원가경쟁력, 제조경쟁력, 인적자원경쟁력에서 유의하다는 결과를 얻었고, 의사결정의 경우는 제조경쟁력, 자금동원경쟁력, 마케팅·영업경쟁력, 기술경쟁력이 유의한 결과를 도출하였다. 최고경영자의 배경·경력 특성은 학력의 경우 전공분야가 현 사업과 관련성이 높은지를 살펴보았는데 전공분야와 중소기업 경쟁력과는 관계성이 없음을 나타내었다. 하지만 경력특성의 경우는 이전직장에서의 경영경험을 바탕으로 살펴보았다. 이결과 최고경영자가 이전직장에서 현 사업과 관련된 충분한 경영경험을 갖고 있을수록 최고경영자의 경영역량이 높다고 볼 수 있었으며, 실패가능성을 낮추고 중소기업 경쟁력 강화의 요인으로 작용하는 것을 알 수 있었다. 이러한 결과를 바탕으로 최고 경영자에 의한 중소기업 경쟁력 제고방안을 제시하였다. 첫째, 중소기업경쟁력 제고를 위한 최고 경영자 특성개발을 제시하였으며, 둘째, 국제시장에서의 중소기업 최고경영자의 역할 강화, 중소기업 최고경영자간 협력 강화 추진 방안에 대해 제시하였다.