연기금 자산운용체계의 개선에 관한 연구

박영규,류근옥,신기철 한국보험학회 2002 保險學會誌 Vol.62 No.-

최근 들어 연금기금의 적립규모는 급속하게 팽창하고 있으며 이에 따라 자본시장과 국민경제에 미치는 영향이 증대하고 있다. 이에 본 논문은 우리 나라 연금기금 자산운용 체계의 현황과 문제점을 분석하고 이를 바탕으로 바람직한 자산운용체재 개편방안을 제시하는 것을 목적으로 한다. 자본시장에서 연금기금 자산운용은 자본의 공급을 늘려 줌은 물론 투자기간의 장기화, 기관화를 촉진하는 등 순기능의 효과가 크다. 그러나, 조사결과 현행 연금기금의 자산운용은 전문성이 떨어지고 성과 면에서는 시장의 자산운용 전문가들에 비해서 나은 성과를 나타내지 못하고 있다. 반대로 자산운용의 집중화로 시장지배권, 독립성, 전문성 면에서 않은 문제점을 나타내고 있다. 이러한 문제들은 연기금운용의 계획, 실행, 감독체계가 제대로 확립되어 있지 못하는데 기인하는 바가 크다. 이에 본 논문은 자본시장에서의 비중 제고, 외부위탁, 자산배분과 위험관리 체계구축과 기금운용위원회의 지배구조 개선, 평가 및 감독제도의 강화를 위한 구체적인 방안을 제시하고 이를 통해 향후 연금기금 자산운용이 지향해야 될 바를 모색하였다. The public pension fund size proliferates in Korea and its impact on capital market as well as on the national economy is ever increasing. This paper intend to discuss and analyze the current situation and problems in public pension management in Korea. It is found that Korean pension funds management bears series of problems. These include the dependency on government, lack of fund management and risk management expertise, as well as inadequate bureaucracy in the management hierarchy. Besides, the size of public pension funds grew to the level that can dominates the capital market and is possibly bring more problems to the market. Therefore, it is necessary to establish new pension fund management systems in Korea at this point. We, discuss and proposes the directions and the methods to achieve this goal which include outsourcing the pension fund management and establishing the public pension fund management supervisory bureau among others.

불소가 함유된 교정용 레진의 접착강도 및 항우식 효과에 관한 연구

박근철,김용기 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.1

The frequent occurrence of enamel of decalcification around orthodontic bands or brackets still continues to be a problem for the clinicians. One of the numerous procedures suggested to overcome those probledms would be the use of fluoride-containing orthodontic resin. The purpose of this study was to compare the anticariogenic potential nad the shear bond strength of two orthodontic resins: GuoupⅠresin containing fluoride and GroupⅡresin with no fluoride.Histological observations were performed through polarizing light microscope and bond strength mesaurements was done by SEM. GroupⅡgenerally showed superior anticariogenic effect to GroupⅠ,positively demonstrating the beneficial effect of fluoride in lowering caries susceptibility. Both groups showed significantly decreased shear bond strength in 4-day specimen when compared to 1-day specimen. However,no significant defferences between groups could be found in terms of the forces required for debonding. In estimation of bonding area that failed,groupⅠpredominantly showed the pattern of adhesive failure whereas enamel detachment pattern in groupⅡ. The results of the present study strongly suggest the successful use of fluoride-containing othodontic resin in a sense of efforts to protect enamel from possible demineralization.

소아환자의 Porcelain Laminate Veneer를 이용한 임상증례보고

박근철,김용기 大韓小兒齒科學會 1991 大韓小兒齒科學會誌 Vol.18 No.2

A large portions of child population suffer esthetic problem during their course of growth caused by various dental defects especially on anterior region. Common crown defects are fracture,discoloration,malformation,abnormal spacing and etc. These anterior defects have a great importance on the normal psychological and social development of children especially in those who are starting their school life. Among various kinds of treatment approaches, porcelain laminate veneer restorations are now being widely used for the younger age group as well as adult population. A 11 year and 1 month old female patient with a chief complaint of anterior spacing caused by peg lateralis came to the pediatric dept. of Dankook University Dental hospital for treatment. Localized gingivectomy on laterals were performed to increase crown length and composite resin contouring of centrals of disto-incisal margin were done to restore the natural contours. Porcelain laminate veneers were fabricated indirectly in the laboratory and adapted on upper peg lateralis by usual manner. The treatment made her smile more acceptable and thus positive expectation on her development of normal character could be made.

작업자의 작업쾌적성 향상을 위한 개선 활동의 실태에 관한 연구

박근상,엄기수,최성주 건국대학교 1997 學術誌 Vol.41 No.2

The purpose of this study is to suggest some definite ideas of increasing worker's work comfortability in industry. Namely, questionnaire survey including questions to inquire of the effective activities engineers and the company administrators adopted in relating to work comfortability was conducted. As for the number of the companies investigated was to totally five hundreds randomly selected among the whole and the various different type of industries. From the results, it can be cleared that workers are apt to think of their own personal and effluenced living life belong the most valuable and important in recent years due to the rapid development of economic conditions. And, furthermore, working area for workers is not thought to be limited only to their own workplace but should be covered the whole area even at home. The conclusion from this study shows that the appropriate countermeasures to increase comfortability of working conditions and environment should be equally important fur industrial workers together with improving work efficiency from the view point of management.

방사화 분석법을 통한 방사선량 및 포획단면적 개념 이해

박상태,김용복,육근철,이희복,김준태,정기주 공주대학교 과학교육연구소 2003 과학교육연구 Vol.34 No.-

중성자 방사화법은 여러 가지 물질의 특성을 규명하는데 매우 유용한 방법이다. 기본적으로 이러한 방법은 매우 간단하다. 임의의 시료를 저속 중성자에 조사시키면, 그 시료는 방사능을 띄게 되고 시료로부터 나오는 β^+, β^-, 그리고 γ선의 선량을 측정하거나 시료의 반감기를 측정하면, 시료를 구성하고 있는 물질의 구성성분이나 그 농도를 알아낼 수 있다. 본 연구에서는 금 박막을 방사화시킴으로서 열중성자 선량값으로 1426.68 ± 11.62n/㎠ㆍsec를 얻었다. 또한, ^55Mn의 열중성자 포획 단면적은 13.79±0.45bam 이었는데 이는 Table of Isotope에 제시된 값과 매우 잘 일치하였다. 본 연구의 실험기법은 일반적으로 널리 알려진 방법이지만, 학생들이 쉽게 접할 수 있는 실험이 아니기 때문에 '선량' 또는 '단면적' 등돠 같은 물리 개념을 가르치는데 유용하게 사용될 수 있을 것으로 기대된다. Neutron activation is very powerful technique for identifying characteristics of many elements. Basically the technique is quite simple. A sample is irradiated by slow neutrons and becomes radioactive. By measuring the β^+s, β^-s, γs and half-life of the resulting sample, the elemental constituents of the sample and their relative concentrations can be identified. In this studies, thermal neutron flux was 1426.68 ± 11.62 n/㎠ ·sec from Au activation analysis. Thermal neutron capture cross section for ^55Mn was 13.79 ± 0.45 barn, it is a good agreement with Table of Isotope data. Technique of this measurement is not special, but can be used usefully for physics concepts learning such as flux and cross section.

급성 심근경색후 생존심근 진단에서 Dobutamine 심초음파도와 Thallium 심근스캔의 정확성 비교

이근,강덕현,송재관,이철환,최기준,홍명기,김재중,박성욱,박종훈,박승정 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.2

중심 정맥 삽관법에 의한 동정맥루: 증례 및 문헌 고찰

이 근,원형섭,양기창,박철완,김상일,정호성,이종호 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

A 36-year old woman with end stage renal failure and hypertension was transferred from a university hospital to our emergency department due to a enlarging right cervical mass associated with a palpable thrill and a bruit. Over a 2 month period, she required hemodialysis for severe azotemia at a university hospital in Seoul. 3 days after a difficult attempt at a internal jugular cannulation, she developed a progressive swelling in the right lower cervical area. An arch and primary branch arteriogram revealed a arteriovenous fistula between right innominate artery and internal jugular vein with a large intervening pseudoaneurysm. She underwent vascular surgery within 1 week of injury and subsequent postoperative angiogram showed complete resolution of the fistula. This rare condition is reported with a review of the literature.

초내열 합금 Alloy718의 저주기 피로시험에서 반복연화 및 R=X (X=0,-1)효과

최병학,신수근,신정근,김선화,윤기봉,염종택,박노광 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

The LCF properties for R=0 as tension-tension and R=-1 as tension-compression were examined in DA alloy718. While the hysteresis loops composed of ?ε_(t), ?ε_(p) and ?σ were figured with similaity in both of R=0 and R=-1, the loops of R=0 were continuely going down along the stress axis during cyclic fatigue progressing. It was caused by Bauschinger effect, which includes a tendancy for stress recovering as an amount of compression stress. The phenomena of cyclic softening in both of R=0 and R=1 seem to be caused by planar slip of dislocations, which was accompanied by shearing the γ'/γ" precipitates during the cyclic fatigue test.

수술 전 진단된 충수돌기 점액류종 1례

허광식,손현화,김동규,박찬국,김만우,김정용,기근홍 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1

Primary unruptured appendiceal mucocele is a rare disease. It is very difficult to diagnose preoperatively because of the rarity of classical symptoms and low incidence. Usually it is discovered incidentally during abdominal ultrasonography(US), computed tomography(CT), or appendectomy for acute appendicitis. If untreated, one type of mucoceles may rupture producing a potentially fatal entity known as pseudomyxoma peritonei, therefore preoperative diagnosis is very important. With the advent of colonoscopy, abdominal US and CT, it has been possible to preoperatively diagnose mucocele of appendix. We experienced a case of appendiceal mucocele in a 60 year-old woman who had symptoms of lower abdominal discomfort and right lower quadrant abdominal pain, and it was diagnosed preoperatively by colonoscopy, abdominal US and CT. So we present this case with review of literature.

대장에 발생한 샘암종에서 MUC1과 MUC2 점소 발현의 의의

이윤경,이주호,이용,심재영,박정훈,오수섭,박진실,기근홍 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2

Background : Mucins possess the unique function of protecting and lubricating the epithelial surface and other important functions such as call growth, direct implication in the fetal development, the epithelial renewal and differentiation, the epithelial integrity, carcinogenesis, immune regulation, cellular adhesion and metastasis. Purpose : This study was done to provide the significance of alteration of MUC1 and MUC2 expression in colorectal adenocarcinoma, A series of 131 colorectal adenocarcinomas including 11 mucinous carcinomas were screened immunohistochemically for their expression of MUCI and MUC2, Materials and mehtods : Of 131 carcinomas, 76 (58,5%) were MUCI positive and 91 (68, 9%) were MUC2 positive, In normal colonic goblet cells, MUCl was not expressed but MUC2 was expressed in cytoplasm, Conclusion There were up-regulation of MUCI and down-regulation of MUC2 in colorectal carcinomas, The frequency of MUC2 positivity according to differentiation was statistically reliable. (p=0.0001)