환상형 클래스프의 유지력에 관한 연구

이재순,방몽숙,Lee, Jae-Sun,Vang, Mong-Sook 대한치과보철학회 1998 대한치과보철학회지 Vol.36 No.5

The purpose of this study was to compare the retentive force of cast half round circumferential clasps, cast round circumferential clasps and wrought wire clasps on three different depths of undercut(10G,20G.30G), and to determine the proper amount of undercut for cast round circumferential clasp. Three different lower second premolar crowns were cast and each of clasp was made. Each of clasp affixed to the different types of clasp. Their retentive forces were measured with universal testing machine. The results were as follows : 1. When the depth of undercut was same, the greatest retentive force was exerted by cast half round circumferential clasp, followed by cast round - 33 - circumferential clasp and wrought wire clasp. 2. The degree of variation amount of retentive force according to depth of undercut was greatest for cast round circumferential clasp. 3. Not only elastic deformation but also permanent deformation of the retentive arm was observed after insertion and removal of the clasp. The results of this study show that the retentive force of cast round circumferential clasp falls between those of cast half round circumferential clasp and wrought wire clasp, and suggest that a 20G undercut is suitable for ensuring an appropriate degree of the retentive force.

80년대 동서진영의 주력전차

이재순,Lee, Jae-Sun 한국방위산업진흥회 1979 國防과 技術 Vol.- No.2

자주포의 운용현황과 개발추세(하)

이재순,Lee, Jae-Sun 한국방위산업진흥회 1981 國防과 技術 Vol.- No.31

자주포의 운용현황과 개발추세-(상)

이재순,Lee, Jae-Sun 한국방위산업진흥회 1981 國防과 技術 Vol.- No.30

월간 양돈에 바란다-부담없이 읽을 수 있도록 내용이 다양했으면

이재순,Lee, Jae-Sun 대한양돈협회 1986 養豚 Vol.8 No.7

M&A 관련 법제의 입법동향과 개선방안

이재순 ( Jae Sun Lee ),한정미 ( Joung Mi Han ) 단국대학교 법학연구소 2008 법학논총 Vol.32 No.1

The problem is whether we should have a positive or negative view on the foreign capital attempting to engage in hostile M&A with domestic businesses. But currently in our capital market, there is less investment capital which is direct investment while the venture capital is in a rapid increase. Therefore, in a long term, it is expected to have a negative effect on our capital market as well as on the national economy. Hence, there must be a appropriate diversionary provision for foreign venture capital. Some of the things discussed for the defense action for the rights of management are introduction of various defensive measures, defense action through stock system reform, and management defense system reform related to Antitrust Law. Along with these problems of introducing the management defense action, the morality of the board of directors who actually decide the management defense action need to be examined. The decision either to be taken over through a friendly negotiation with the intention of the accepting business or to go through the hostile M&A is entirely made by the board of directors of the business. However, in the case the board of directors refuse to be taken over and also fight against the hostile M&A, if the decision of the board of directors is not in the best interest of the business or the stockholders, the board of directors is in danger of being accused by the stockholders. In other words, although the existing board of directors and the controlling stockholders manage the rights of management defense, if the board of directors defend the rights of management by bringing loss to the stockholders and business associates cannot be justified. Having these problems, the careful discussion on whether the selected defense action is to benefit the business and stockholders or to benefit the board of directors themselves should be progressed.

초등학생을 위한 동화 활용 창의적 문제 해결 프로그램 개발 및 적용

이재순 ( Jae Sun Lee ),정정희 ( Chung Hee Chung ),백경미 ( Kyoung Mi Back ) 한국초등교육학회 2008 초등교육연구 Vol.21 No.2

The purpose of this study is to develop the Creative Problem Solving Program using story books and examines the effects of the Creative Problem Solving Program using story books on the elementary school students` creativity, problem thinking ability and narrative competence. The subjects of this study were 64 elementary students of two classes in the second grade in Daegu. One class was assigned to the experimental group and the other group to the control group. The experimental group was involved in the Creative Problem Solving Program using story books designed by the researcher 16 times, twice a week, during 8 weeks. The results showed that the Creative Problem Solving Program using story books affected the improvement of the elementary school students` creativity, problem solving ability and narrative competence. In conclusion, the Creative Problem Solving Program using story books should be useful for improving elementary school students` creativity and narrative competence and could be applied in elementary school classrooms to promote the their creativity and the their narrative competence.

U-Eco City 상품수출을 위한 시장성 평가 및 시장 유형화에 관한 연구

이재순(Lee Jae-Soon),오동훈(Oh Dong-Hoon),박선영(Park Sun-Young) 대한국토·도시계획학회 2009 國土計劃 Vol.44 No.4

U-Eco City is the city of world's first concept newly developed through merging a world class high level of IT with the technology of ecological urban development in Korea. This study aims at analyzing marketability for U-Eco City as an export product and then classifying the global markets for exporting. At first, this paper studies a market attractiveness in consideration of technology level in overseas construction market, a growth scale of potential market, regional characteristics, and political supports from the government. Furthermore via investigating opportunities for exporting Korean style newtown and testing a reliability on Korean technologies, the marketability is tested at regional level in global market for exporting U-Eco City merchandise. Secondly, with the result of marketability testing, market segmentation for U-Eco City merchandise export is appropriately proposed and both regional characteristics and the guideline for export strategies are suggested.

U-Eco City 상품화전략에 관한 연구

이재순(Lee Jae Soon),오동훈(Oh Dong-Hoon),박선영(Park Sun-Young) 한국도시행정학회 2009 도시 행정 학보 Vol.22 No.2

The purpose of the paper is to present merchandising strategy for U-Eco City, which is the city of world’s first concept newly developed through merging a world class high level of IT with the technology of ecological urban development. In order to accomplish this study’s purpose at first, this paper analyzes product characteristics of U-Eco City. In addition, according to the result of analyzing the product characteristics of U-Eco City, merchandising strategies and U-Eco City’s brand logo & symbol are proposed. Secondly, for consistently creating value-added by exporting U-Eco City to the world, the paper suggests another merchandising Strategies such as 1) value added strategy through platform construction and 2) brand building strategy of UEco City for achieving customer’s trust.

산림 걷기운동이 50대 여성의 NK세포와 혈중 멜라토닌 농도에 미치는 영향

이미옥(Lee, Mi-Ok),신창섭(Shin, Chang-Seob),연평식(Yeon, Pyeong-Sik),신민자(Shin, Min-Ja),이재순(Lee, Jae-Sun),최종환(Choi, Jong-Hwan) 한국산림휴양복지학회 2017 한국산림휴양학회지 Vol.21 No.2

본 연구는 50대(50-59세) 여성을 대상으로 12주간의 산림 걷기운동이 NK세포 수와 혈중 멜라토닌 농도 변화에 어떠한 영향을 미치는지를 규명하고자 하는데 있다. 본 연구를 위하여 산림 걷기운동과 평지 걷기운동으로 18명의 50대 여성들이 참여하였으며 산림 걷기운동 집단(n=9)과 평지 걷기운동 집단(n=9)으로 구분하여 주 3회, 110분씩 12주간 동안 운동을 실시하였다. 모든 대상자들은 NK세포 수와 혈중 멜라토닌 농도 측정을 위해 운동 12주 전과 후 측정시기(안정시, 90% HRR 운동 후)에 4회 채혈하였으며, 자료처리는 평균과 표준편차를 구한 후 반복측정 이원변량분석을 하여 다음과 같은 결과를 얻었다. 첫째, 안정시에서 12주간 운동 프로그램 후 높은 운동 강도와 높은 피톤치드 조건의 산림 걷기운동 집단은 안정시 NK세포 수가 유의하게 활성화 되었으나, 낮은 운동 강도와 낮은 피톤치드의 조건인 평지 걷기운동 집단은 안정시 NK세포 수 변화가 없었다. 둘째, 90% HRR 운동에서 12주간 운동 프로그램 후 높은 운동 강도와 높은 피톤치드의 조건인 산림 걷기운동 집단은 혈중 멜라토닌 농도가 활성화되어 유의하게 증가되었으나, 낮은 운동 강도와 낮은 피톤치드의 조건인 평지 걷기운동집단은 90% HRR 운동 후 혈중 멜라토닌 농도 변화가 없었다. 셋째, 운동 강도와 피톤치드의 차이와는 상관없이 모든 집단에서 12주간 운동 프로그램 후 90% HRR 운동에서 NK세포 수가 증가되었고, 안정시에서 혈중 멜라토닌 농도가 증가되었다. 따라서 본 연구는 준 경사도의 높은 운동 강도와 높은 피톤치드 농도의 조건인 산림 걷기 운동이 50대 여성의 NK세포 수와 혈중 멜라토닌 농도 변화에 더 긍정적인 영향을 끼친다고 제안한다. This study investigated the effect of 12 weeks’ Forest-Walking exercise on NK cells and blood melatonin levels of women in their 50s. 18 women in their 50s participated in this program and were assigned to 2 groups: FWE-G(Forest Walking Exercise Group)(n=9) and GWE-G(Ground Walking Exercise Group)(n=9). The subjects were asked to participate in FWE program or GWE program(3 times/week, 110min/day) for 12 weeks. To measure the number of NK cells and the blood melatonin concentration levels of the subjects, their blood were taken 4 times(at Rest, at 90% HRR After Exercise) at the beginning and at the end of the 12-week program. For data analysis, mean and standard deviation scores were calculated, and independent t-test and repeated two-way ANOVA were used. After 12-weeks training program, the results of this study were as follows: First, the number of NK cells at Rest significantly activated at high-exercise intensity and high concentration of phytoncide FWE-G, but did not show any number of change at low-exercise intensity and low concentration of phytoncide GWE-G after 12 weeks’ program. Second, blood melatonin levels at 90% HRR is denser at high-exercise intensity and high concentration of phytoncide FWE-G significantly than low-exercise intensity and low concentration of phytoncide GWE-G which did not show any change after 12 weeks’ program. Third, both group increased in the number of NK cells at 90% HRR after exercise and blood melatonin levels at Rest regardless of exercise intensity and concentration of phytoncide after 12 weeks’ program. Therefore, this study may suggest that the number of NK cells and the blood melatonin levels in the women in their 50s can be positively affected by Forest-Walking exercise in the circumstance of middleslope, high-exercise intensity and high concentration of phytoncide.