工業敎育大學 敎育改善에 관한 硏究(Ⅲ)

宋周鎬,李昌岬,洪元杓,孟琦錫,任洪彬,李廷玟,李載元,李來烈,權五憲,金振淳,李文洙 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1

This paper aims at providing a concrete plan to improve technical and vocational teacher education in the College of Industrial Education of Chungnam National University. It is intended to propose a practical four-year regular and short-term course. Also, the estimated required facilities is included in this study as well as their management. The main conclusions and recommendations are summarized as follows; 1) The numbers of students enrollment should be reduced to 220 students which is the approximate number of future demand. 2) In order to offer to the students a broader education and to cope with the increase/decrease in demand of technical and vocational teacher within a specific field, the 8 department existing at the present (Department of Architecture Engineering Education, Civil Eng. Educ., Metallurgical Eng. Educ., Mechanical Eng. .Educ., Electrical Eng. Educ., Electronic Eng. Educ., Industrial Chemistry Educ. and Industrial Technology Educ.) would be combined into 5 (Department of Construction Engineering Education, Mechanical Eng. Educ., Electrical Eng. Educ., Industrial Chemistry Educ. and Industrial Technology Educ.). 3) The short-term course program is recommened to provide additional training and education to those candidates who already have experience in technical fields to meet an occasional demand. 4) It is necessary to add the Teaching Profession Section in the administrative organization of the College.

Agrobacterium tumefaciens를 이용한 bialaphos 저항성 형질전환 벼의 개발

이효연,이춘환,김호일,한원동,최지은,김진호,임용표 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-

비선택성 제초제인 bialaphos는 고등식물에 있어서 glutamine 합성을 억제하여 식물체를 고사시킨다. Acetyltransferase에 의해 encoding된 bialaphos 저항성 유전자는 세균 Streptomyces hygroscopicus SF1239로부터 cloning된 것을 사용하였다. Bialaphose 저항성 유전자를 Agrobacterium 감염법을 이용하여 국내에서 재배되는 벼(동진)에 도입한 결과 약 30%정도의 형질전환 식물체를 얻을 수 있었다. T_1세대의 17개체는 hygromycin과 bialaphos에 대한 저항성 유전형질이 3 : 1로 분리되었다. 또한 Southern 분석을 실시한 결과 wild type의 식물체에서는 Bar 유전자의 검출을 볼 수 없었으나 형질전환 식물체의 경우 Bar 유전자의 검출이 가능하였다. T_3 세대의 형질전환 식물체와 wild type의 식물체를 포장상태에서 비선택성 제초제인 바스타를 살포하고 3주 후에 관찰한 결과 형질전환 식물체는 외형적으로 아무런 피해를 받지 않고 정상적으로 생장하였으나, wild type의 식물체와 잡초는 모두 고사하였다. 이상의 결과를 종합해보면 hygromycin과 bialaphos 저항성 유전자는 Agrobacterium 감염법을 이용하여 단자엽 식물인 벼에 도입할 수 있다는 것을 보여준 것이며, 또한 bialaphos 저항성 유전자가 식물에 도입됨으로써 비선택성 제초제에 대한 저항성 식물을 개발 할 수 있다는 것을 보여 주었다. The bialaphos is a potent inhibitor of glutamine synthease in higher plants and is used as a non-selective herbicide. We have used the bialaphos resistant gene (Bar) encoding for an acetyltransferase isloated from Streptomyces hygroscopicus SF1293. Callus derived from mature seeds of rice (Oryza sativa L. cv. Dong Jin) were co-cultivated with Agrobacterium tumefacieus EHA101 carring a plasmid pGPTV-HB containing genes for hygromycin resistance (HygR) and Bar. Transgenic plants showing in vitro resistance to 50 mg/L hygromycin and 10 mg/L bialaphos were obtained by using a two-step selection/regeneration procedure. Transformation efficiency of rice was about 30% which was as high as reported in other dicotyledons. Progenies (T_1 generation) derived from primary transformant of 17 lines were segreagated with a 3 resistant:1 sensitive ratio in medium containing hygromycin and bialaphos. Stable integration of Bar gene into chromosomal DNA was proven by Southern blot analysis of genomic DNA isolated from T_2 progenies. Transgenic plants (T_3) grown in the field were resistant to bialaphos (Basta) at a dosage lethal to wild type plants.

γ선에 의한 말단팬텀에서의 선량분포 연구

이원근,김광표 경희대학교 산학협력기술연구원 1995 산학협력기술연구논문집 Vol.1 No.-

In 1995, The American National Standard Institute(ANSI) is planning to release a standard for the performance testing of personnel extremity dosimeters as ANSI N13.32 standard. The standard is applicable to a personnel extremity dosimeter process used for determing the dose equivalent to the extremities at the reference depth of 7㎎/㎠, as recommended by the International Commission for Radiation Units and Measurements Reports 39. In this study, theoretical calculations of dose equivalent were performed by using a Monte Carlo N-particle transport code for the two types of extremity phantom: one to represent a lower arm or leg composed of tissue and bone to test wrist or ankle dosimeters, and the other to represent a finger to test ring of hand dosimeters. The dose equivalent of the two extremity phantoms by taking consideration of the distribution of absorbed dose due to the interaction of homogeneous parallel broad beam of monoenergetic primary photons in the range between 15 keV and 1.5 MeV result from the kerma approximation with the Monte Carlo method.

공무원의 스포츠 참여 실태조사 및 스포츠 참여 장애요인에 관한 연구

이원표,부기원 江原大學校附設體育科學硏究所 2004 江原大學校附設體育科學硏究所論文集 Vol.- No.27

The purpose of this study was to survey and analyze the response of civil servants on the participation in sports activities and the cause of barrier in sprots participation with 400 civil servants (female:100, male:300) on the Yangpyong city in Kyongki province were answered by the questionnaire. Analysis of the data with 376(female:90, male:286) for the evaluation of the questionnaire can be acquired the more basis materials of sports environment for the civil servants. As result, we have the conclusion as follow. 1. The participation in sports activities among civil servants. The servey of the participation in sports activities among civil servants is as follows. The frequency of playing sports is 1∼2 in a week. The time last 30min.∼1hr. The preferance time is in the aftermoon. The major reason of playing sports is promotion of health. The most popular sports is jogging and marathon. 2. The cause of barrier in sports participation among civil servants is as follows in order. 1) Dissatisfaction of sports program 2) Difficulty of approach to sports club 3) Insufficiency of social support 4) Shortage of time 5) Low nterest in sports 6) Enerfation 7) Shortage of physical strength.

중 · 고등학생의 스포츠참여 장애요인에 관한 연구

이원표,부기원 江原大學校附設體育科學硏究所 2002 江原大學校附設體育科學硏究所論文集 Vol.- No.25

The purpose of this study was to survey and analyze the response of middle, high-school students on the barriers to exercise and sport with 600 students(male:330, female:270) on the yangpyong city in kyongki province were answered by the questionnaire. Analysis of the data with 565(male:311, female:254) for the evaluation of the questionnaire can be acquired the more basis materials of sports environmnet for the middle, high-school students. As result, we have the conclusion as follow. 1. In their sex and factor of sport barriers. male is a bar to according to priority sport program(3.05), sport club(3.00), financial support(2.91), social support(2.85), time shortage(2.73), different concern(2.34), enervation (2.13), health/physical strength(2.03) female is a bar to according to priority sport program(3.30), sport club(3.04), time shortage(2.96), different concern(2.95), social support(2.88), financial support(2.84), enervation (2.59), health/physical strength(2.14) 2. In their grade and factor of sport barriers, middle-school students is a bar to according to priority sport program(3.04), sport club(2.95), different concern(2.80), social support(2.75), financial support(2.74), time shortage(2.65), enervation(2.40), health/physical strength(2.25) high-school students is a bar to according to priority sport program(3.19), sport club(3.04), financial support(2.91), social support(2.98), time shortage(2.88), different concern(2.56), enervation(2.32), health/physical strength(2.04) 3. In their department and factor of sport barriers, an academic high school is a bar to according to priority sport program(3.17), time shortage(3.13), sport club(3.09), financial support(2.96), social support(2.91), different concern(2.50), enervation(2.34), health/physical strength(1.95)an business(industrial) high school is a bar to according to priority sport program(3.21), sport club(2.99), financial support · social support(2.87), time shortage(2.64), different concern(2.63), enervation(2.29), health/physical strength(2.11) 4. There are no difference in their parent's scholastic ability and factor of sport barriers. 5. In general, their sex, grade, department, parent's scholastic ability and factor of sport barriers is a bar to according to priority sport program, sport club, social support. As a result of analysis, in order to participate of sport, physical education activity and sport program expansion is necessary

폭풍발생에 따른 해안단면변화에 관한 수치해석

표순보,조원철,이보형,이홍식 중앙대학교 기술과학연구소 1998 기술과학연구소 논문집 Vol.28 No.-

폭풍발생에 다른 해안단면의 변화를 예측하는 것은 해안선 변화에 대한 종합적인 대책을 수립하는데 있어 중요한 역할을 한다. 해안단면변화는 주로 해빈의 유사이송에 에 의해 발생되나, 유사이송은 유사의 입경, 수면상승높이, 쇄파고 등 많은 요소들에 의해 복합적으로 작용하기 때문에 현재에도 정확한 예측이 어려운 실정이다. 본 논문에서는 해안단면에서의 평형에너지소산개념을 수치모델에 도입하여 폭풍발생에 따른 안층방향의 해안단면변화와 해빈침식에 대하여 분석하여 보았다. 안층방향의 해안단면변화와 해빈침식은 평형단면 파라미터, 유사이송률 파라미터, 수면상승높이에 의해 크게 영향을 받음을 알 수 있다. A numerical model is applied for predicting variation of the beach profile and beach erosion during storms. Equation of sediment continuity and dynamic equation, governing on-offshore sediment transport due to a disequilibrium of wave energy dissipation, are used in the model. During a storm, the beach profile evolves to a form where the depth at the surf zone is related to the distance seaward of the waterline. In general, variation of the beach profile is found to be sensitive to the equilibrium profile parameter, the sediment transport rate parameter and the elevated water level. Also, the model response characteristics in the simulation of beach erosion show a lag between the maximum storm surge elevation and the maximum erosion.

原子力 發電所 使用後 核燃料 貯藏 方案의 比較 分析

李源根,金洸杓 慶熙大學校 1994 論文集 Vol.23 No.-

At present all the discharged spent nuclear fuells are stored in at-reator (AR) pools of each nuclear power plant in Korea, but most of the exciting AR pools will lose their full core reserve capacities in the late of 1990s Untill the long-term spent nuclear fuel management policy will be established, this cummulative spent nuclear fuels should be safely stored in an applicable storage facility. By this study results, the alternatives to solve this storage problem of the cummulative spent nuclear fuels are recommended as the followings : If the policy making would be done in the near future, the storage capacities of the existing pools would be expanded by the replacement of the old racks into or the installation of high density racks, and, if it could not be, a centralized wet or dry storage management of the spent nuclear fuels should be more reasonable.

NATM 통신구터널 지보패턴에 관한 연구

홍원표,한중근,이상곤 중앙대학교 기술과학연구소 1998 기술과학연구소 논문집 Vol.28 No.-

우리나라에서 NATM 통신구터널에 적용되고 있는 암반분류형태 및 지보패턴은 지하철 도시터널과 같이 대형단면 터널에 적용되는 기준을 그대로 적용하고 있는 실정이다. 그러나 NATM 통신구터널은 대개 소형단면터널이며 깊은 tal도에서 시공되는 것이 일반적이다. 따라서 NATM 통신구터널의 설계 및 시공시에는 적절한 지반암반의 정량화 및 공학적 분류법을 별도로 마련하여 이 분류에 근거한 적합한 지보모델을 제시할 필요가 있다. 본 연구에서는 NATM 통신터널에 적합한 표준지보패턴과 암반분류모델을 7등급으로 구분 제시하며 제시된 암반 분류등급별 지보패턴에 대한 합리성이 터널시공사례에 대한 유한차분해석을 통해 검증된다. The classification of rock-mass and its reinforcement pattern used for Communication Cable Vault in Korea have been actually used such methods that applied to largesectional tunnel construction such as Subway urban-tunneling. However, in the case of small sized tunnel works for Communication Cable Vault which are generally adopted at deep depth, the proper reinforcing support model should be suggested on the basis of quantitative classification of rock-mass for design and construction. This paper presented standard reinforcement pattern and classification model of rock-mass for NATM of Communication Cable Vault. They are divided in to 7-categories of grades and reasonability of these suggestion is ascertained from numerical analysis for the construction of these suggestion is ascertained from numerical analysis for the construction of Tunnel.

우리나라 서남해안 해성점토의 전단특성에 관한 연구

홍원표,이양상,한중근 중앙대학교 기술과학연구소 1994 기술과학연구소 논문집 Vol.24 No.-

Saturated marine clays are consolidated under applied loads caused by deposit-process or human interruptions. The consolidation process results in densification and in turn increment of the undrained strength of a clay deposit. In a clay deposit, the undrained strength is increasing with the effective overburden pressure, which also increases wit depth. The strength variations with effective overburden pressure(or depth) is characterized by so called "Cu/P" ratio. In korea, the empirical formula proposed by Skempton has been used to estimate the undrained strength profile of a clay deposit without any sometimes varification of the applicability to clay deposits in Korea. In the thesis, the test data for some clay deposits along south -west coast in Korea were analized to test the applicability of Skempton formula. A new formula pertinent to the deposits was developed. Also, Initial elastic and secant moduli were studied.

광양지역의 지반전단강도 증가 특성

홍원표,송영석,이근하 중앙대학교 기술과학연구소 2000 기술과학연구소 논문집 Vol.30 No.-

본 연구에서는 연약지반개량공사가 실시된 광양지역을 대상으로 압밀기간동안 개량지반의 물리적, 역학적 변화특성 및 개량효과를 고찰되어 있다. 지반개량전 원지반에서 시료를 채취하고, 모래말뚝 타설직후, 압밀방치중(예상압밀도 50%) 및 압밀완료시(예상압밀도 90%)에도 시료를 채취하여 각각 토질정수를 조사 비교하였다. 그 결과 압밀이 진행되는 동안 지반의 강도는 증가하여, 일축압축강도로 구한 점성토지반의 강도증가율(C_u/P_o)이 0.36이 되었다. 그리고, 일축압축강도로 구한 점성토지반의 강도증가율(C_u/P_o)이 0.36이 되었다. 그리고, 일축압축강도와 함수비는 최대압밀응력에 대하여 유일함수관계를 보이고 있으며, 압밀완료시점(예상압밀도 90%)에서 추정된 비배수전단강도는 측정된 비례수전단강도와 비교적 잘 일치한다. In this study, both physical and mechanical properties of soft grounds are investigated during improvement works of soft grounds in Kwangyang. The properties of soil before ground improvement are compared with the properties of the improved ground after Sand Compaction Pile installation, during consolidation(degree of consolidation 50%), and at the end of consolidation(degree of consolidation 90%). From this result, improvement of the shearing strength of soft grounds can be deserved during consolidation, and the improving rate of shearing strength C_u/P_o is 0.36. The relationship between the shearing strength by unconfined compression tests, consolidation stress and water content shows that both the shearing strength and water content have an unique function relationship. The shearing strength predicted by Rutledge hypothesis shows relatives good agreement with the field strength.