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Key Ethical Issues and Hindrances to Ethical Behavior in Korean Insurance Industry
Lee, Kyung-Lyong,Lee, Bong-Joo,Lee, Han-Duck 서강대학교 경영연구소 2004 서강경영논총 Vol.15 No.2
The purpose of this paper is to investigate key ethical issues and hindrances to ethical behavior faced by professionals working in Korean insurance industry. For this purpose, conducted is a survey of actuaries in a variety of positions in insurance companies and insurance related institutions. The findings also are compared to those of American studies. Actuaries' perceptions of the key ethical issues tend to be restricted to actuarial aspects such as insufficient legal authority to perform professional services in an ethical manner and failure to get adequate ethics training program. But some issues arising in marketing are considered significant similar to the U.S. As a whole, key ethical issues and challenges are not significantly different from the viewpoints of actuaries working in the life and non-life insurance business. Regarding key hindrances to ethical behavior, the 15 factors are presented such as competitive pressures, performance-based evaluation and unethical demand made by clients. These findings are generally similar to those of the U.S. studies.
류봉조,임경빈,이규섭,송영봉,임경빈 한밭대학교 생산기반기술연구소 2003 생산기반기술연구소 논문집 Vol.3 No.1
This paper deals with the vibration and noise characteristics of three different kinds of pipe structures (PVC pipe, cast-iron pipe and newly developed pp pipe). In order to measure the structure born noise, an impact force generated by dropping a small ball was applied to three different kinds of pipes. It was confirmed that the structure born noise could be reduced by employing a high damping material. Also, transmission loss of a pipe was investigated for various frequency ranges by using a speaker as a sound source.
이봉준,이경준 한국항공대학 항공문제연구소 1992 航空問題硏究所 硏究誌 Vol.2 No.-
비행중에 항공기의 연료를 절약시키는 가장 중요한 요소는 항공기의 항력을 감소시키는 것으로서 본 연구에서는 연료 절약형 이음속 항공기의 개발을 위한 유도항력감소에 관한 기초적인 연구를 수행하였다. 날개의 형상에 따라 유도항력이 달라지므로 이 항력을 최소로 하는 날개끝의 형상에 대한 연구와 날개끝 와류를 제어하는 유도항력 감소장치에 대하여 이론해석 및 풍동실험을 통한 연구를 하였다. 날개끝의 형상으로는 날개 끝에 camber와 파형이 있는 새로운 crescent형 날개끝 모양에 대한 공력특성을 구하였다. 날개 끝에 장착하는 유도항력 감소장치로서 날개끝 strake, 방사형 다중슬롯에 대한 기술을 개발하였다. 여러 가지 모양의 날개끝 strake를 설계하여 직사각형 날개, 테이퍼형 날개 및 뒤젖힘 날개에 장착하여 수치해석 및 풍동실험을 통한 공력특성을 조사하였다. 날개 끝에 방사형으로 설치한 다중슬롯장치가 날개끝 와류를 제어하여 날개의 양항계수에 미치는 효과를 실험적인 방법으로 연구하였다. The most important factor in saving fuel during flight is the reduction of aerodynamic drag of the aircraft. In this study, a basic research has been carried out to reduce the induced drag for the development of fuel economical subsonic aircraft. The wing tip configuration and devices to reduce induced drag were investigated by numerical analysis and experiment. To study the aerodynamic characteristics of a wing tip shape, wind tunnel testing and numerical analysis were carried out for a newly developed crescent wing tip with camber and wavy tip shape. For the wing tip drag reduction devices such as wing tip strakes, and radial multiple slots were developed. Various shapes of wing tip strakes were designed and wind tunnel tests were conducted to investigate the aerodynamic characteristics of wing tip strakes for a rectangular wing, tapered and 35 degree swept back wing. An experimental study was performed for effect of the multiple slots which were formed at the wing tip radially on the coefficient of lift and drag of a wing by reducing the trailing vortex effect.
고봉경 계명대학교 생활과학연구소 2001 科學論集 Vol.27 No.-
Taurine was added to wheat flour noodles to investigate the effects on properties of dried and cooked noodles. Addition of taurine up to 3% of flour did not affect mixing properties of dough. Taurine improved the aftertaste and softness of noodle, which resulted in increase of preference of noodles. However brightness of dried and cooked noodles were not improved with taurine addition. Cooking loss and protein loss were decreased and carbohydrate and turbidity of broth were increased with addition of taurine.
On the Bockstein Spectral Sequence of the Couple
조경봉 대불대학교 2001 論文集 Vol.7 No.1
이 논문에서는 어떤 couple에 대한 Bockstein Spectral Sequence를 계산하여 정리3.1과 정리 3.2를 얻었다.
방사선 사진을 이용한 계수 영상의 판독능에 관한 실험적 연구
나경수,조봉혜,손영순 大韓口腔顎顔面 放射線學會 1994 Imaging Science in Dentistry Vol.24 No.2
The comparative detectability of the artificial defects among conventional radiographs, digital images and digital subtraction images was evaluated. The artificial defects were made within spogy bone of 24 unilateral mandibles of adult dogs. The results were as follows: 1. With normal exposure time, the detectability of digital subtraction radiographs was 90.3% which was statistically significant superior to those of conventional radiographs(78.0%) and digital images(75.9%)(p<0.05). 2. With half-exposure time, the detectability of conventional radiographs, digital images and digital subtraction radiographs was 68.4%, 67.3% and 69.9% respectively. There was no statistical significant difference among the detectability of these methods(p>0.05). 3. All radiographic images with normal exposure time showed statistically significant superior detectability to those with half-exposure time(p<0.05). 4. The detectability of digital subtraction radiographs was not linearly related to the standard deviation of the grey levels of reference line(p<0.05).
Remarks on real Stiefel manifolds V_(4n,k)
조경봉 대불대학교 1995 論文集 Vol.1 No.2
Grassmann 다양체가 특성류에 미치는 영향은 매우 크며 Stiefel 다양체는 Grassmann 다양체를 정의하기 위한 전초적인 다양체이다. 따라서 Stiefel 다양체의 위상적인 측면에서의 연구는 대수적 위상수학에 있어서 매우 중대하다. Yasui[5]는 복소수적 상 Stiefel 다양체의 Homotopy 형을 연구하였다. 본 논문에서는 Yasui의 연구에서 암시를 얻어 실 사영 Stiefel 다양체 RV_(4n,k) 와 4원수적 상 Stiefel 다양체 HV_(4n,k)의 Cohomology 구조들을 몇가지 밝혔다. Ruiz[4] studied the cohomology structures of complex projective Stiefel manifolds and verifies some properties on them, and Yasui[5] studied the homotopy type of the complex quotient Stiefel manifolds of V_(2n,k). In this paper, we have verified some remarks on the real projective Stiefel manifolds and quaternionic quotient Stiefel manifolds of V_(4n,k) which are motivated by the results in Ruiz[4] and Yasui[5].