지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

디젤 기관 대차 용접부의 내구성 평가에 관한 연구

정진성,이찬우,김호경 서울産業大學校 1999 논문집 Vol.50 No.2

The bogie frames mainly fabricate 9㎜ thick rolled steels and sometimes fatigue cracks occur in their welded joints due to inadequate fatigue design and poor weld quality. The objective of this study is to present the systematic procedure of the fatigue durability estimation and the remaining life prediction for diesel locomotive bogie frame weldments. In order for prediction of remaining fatigue lifetime, service stresses were measured at critical points, using strain gages, during field tests under several rail-roading conditions. It was found that the systematic procedure presented in this study could be applied practically to the fatigue analysis for the locomotive bogie frame weldments.

고려인삼의 홍삼 품질평가요인 분석

정찬문,엄유리,김상민,이이,이문순 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.2

This study was conducted to evaluate the elements affect on the quality of red ginseng. For that purpose, we surveyed the relationship between the red ginseng quality and the properties of material ginseng, processing methods, root year, root size, production location, and cultivation methods. Six-year old raw ginseng caused higher inside cavity than younger one did and larger sized ginseng increased outside cracking and inside cavity but decreased inside white than smaller sized one did. The production location did not affect the quality of red ginseng. The red ginseng processed with the ginseng grown on upland field showed lower outside cracking and inside cavity than the red ginseng processed with the ginseng grown on paddy field did. In terms of cultivation method, transplanting method showed lower inside cavity and inside white rates than direct sowing method did. In conclusion, ginseng cultivation location and cultivation method affected on the quality of the red ginseng more than the root age, root size and production location did.

구-막대 시스템에서 CDM을 사용한 강인한 제어기 설계

이호기,박용식,정찬수 崇實大學校 1999 論文集 Vol.29 No.1

All the controller design problem for linear time invariant dynamic system boils down to proper selecting the characteristic polynomials and numerator polynomials for concerned input-output relations. The propel selection of the characteristic polynomial is not so difficult, if only stability and response are to be satisfied, but it becomes complicated when robustness issue is added. The CDM could be a solution to this problem. CDM which is developed by Lipatov's conditions for stability and Kessler's standard form is easy to process of the controller design, especially it is more useful when the specifications are the settling time, rising time and overshoot. In this paper was used CDM design a simple but robust controller of the ball and beamsystem. The ball and beam system is highly nonlinear system. And it's linear transfer function used to design the controller. But CDM proved to be a solution to design even if there are some uncertainties like this linearized ball and beam system by simulations.

燃料林造成事業의 費用收益分析

李麗夏,鄭燦吉 建國大學校附設 農業資源開發硏究所 1980 論文集 Vol.5 No.-

1. The Korean Government has put massive effort to protect and reforest the mountains since her independence in 1945. Without adequate alternative means of fuel supplies, however, farmers and firewood dealers could not help stop illegal cutting of the forest woods. Recognizing the necessity of alternative ways of fuel supplies the Government started to establish 850 thousands hectars of fuelwood plantations in 1959 with an aim to arrange farm fuels through the establishment of fuel forests, contributing to the prevention of forest demages. The program was accomplished in 1977, totalling 643 thousand hectars planted in terms of area which is less than as planned by 207 thousand hectare,after many years of trial and errors. Of 643 thousand hectare of the fuelwood establishment, 50 thousand hectares were carried out in 1976,and 127 thousand hectare in 1977 respectively. Part of the necessary funds for the project was provided by IBRD loaning during 1976 and 1977 years. Shape of forest is visibly improving in re cent years. 2. The present status of the Village Forestry association system as of the end of October, 1977 is that a total mambers of the VFA are amounted to 2,250,000. There are more 21,109 VFA and there associations organize 141 City and County Forestry Association Unions, these organizations resemble the administrative organization system and become to have cooperation and connection with administrative system. 3. The total number of households of the 36 sample Villages was 4,085. Average number of households per village was 113. Average family number per household was 5.7 person which was very high. Of the total households 3,624 households were farm households and the rest nonfarm households. This comprises the ratio of 89 percent for the farm households and 11 percent for the non-farm households. Relatively high ratio of the farm households indicates that rural households in Korea are heavily dependent upon farming. Members of Village Forestry Association were 3,839 which amount to 93 percent of the total household surveyed. Of the total VFA member households, 916 households were forest land owners and 2,741 households did not possess their own forest land. 4. A total land area of the sample Villages was 19,789,871 hectare consisting of 4,323 hectare of cultivation land 2,936 hectare of upland, and 10,807 hectare of forest land. An average land area per Village was about 300 hectare. 5. Of 10,807 hectare of the forest land the share of fuelwood plantation was 2,962 hactare which amounts to 27.4 percent of the total forest land of the sample villages. Of the tota plantation area 1,877 hectare which amounts to 631.4 percent was established before 1976 and 1,084 hectare which is 36.6 persent was planted since 1973. 611.6 hectare which amounts to 20.6 percent of the total fuelwood plantation was established during 1976 and 1977 with IBRD loans. Amount 20 percent of the fuelwood plantation area which was established before 1973 was disused and considered to result in a great waste of resources. 6. Varieties of the fuelwood species are regidar pine, acasia, alter, acasia-alter mixed forest and bush clover. The most preferable species among VFA members was rigidar pine due to its strong adaptability to environment and fast growth. Looking at the fuelwood plantation area established before 1973 by fuelwood species acasia amounted to 38.4 percent rigidar pine 50.7 percent, alder 6 percent,and other 41.8 percent. Of 190 hectares planted in 1974 acasia amounted to 33 percent, rigidar pine 36 percent, alder 17 percent, and bush clover 5 percent. Of 204 hectare established in 1975 acasia was 36 percent, rigidar pine 21 percent, alder 34.7 percent, and bush clover 7.8 percent. Of 290 hectare planted in 1976 acasia amounted to 23.3 percent, rigidar pine 40.4 percent, alder 26.9 perpent, bush clover 2.8 percent, and other 6.5 perpent. Of 374 hectare planted 1977 acasia amounted to 22.4 percent, rigidar pine 41.8 percent, alder 15.7 percent, bush clover 15.2 percent, and other 4.9 percent. According to the figures the rigidar pine has the largest planted area except 1975. On the basis of the percentage of the plantation area the rankings among fuelwood species are rigidar pine, alder, acasia, and bush clover. 7. Ninetynine percent of fuelwood plantation in terms of hectare nearby mountains from villages and other along roads and the edge of streams. The ownership of the site planted by fuelwood species is mostly private owned which amounts to 90 percent. The owners of the plantation site have to render their tenure rights to VFA to establish fuelwood plantation by law if the County office designate the site for fuelwood planation. The fuelwood plantation is established and managed by VFA with voluntary labor of VFA members. The harvested products will be shared by VFA and the site owners with 9:1 ratio. 8. The servival rates of planted tree ranged from 75 percent to 95 percent and the reforestration of nearby forest is closely visible fuelwood raising status varied widely depending upon soil,light,location,and management of the plantation site. Application of fertilizer,particularly, seems to be very important to raise fuelwood in good condition. Among the 36 sample Villages 30 Villages have applied fertilizers after the establishment of the fuelwood plantations. After the plantation of fuelwood aftercares such as weedings, tendings,fertilizations are carried out for 2∼3years by the members of VFA, voluntarily, with no wages paid except fertilizers subsidied the Government. For autonomus fuelwood plantation protection a patrol team is organized by the VFA members. The inturn patrol team consisting of two VFA members makes intensive patrols during the season of fall through the spring of the following year which forest damages are heavily expected. These patrols have served for the prevention of collecting illegally forest products, control of destructive actions against forest facilities, prevention of forest fire, prevention of illegal hunting, etc. There were no villages hired full time patrolmen among the 36 sample villages. All chiefs of the VFA surveyed were serving without pay. It takes generally 4∼5years to harvest fuelwood after planting the seedlings. Weeding is taking place every year until the havest time comes, and the remains are not remains are not collected for fuel. They are spreaded and left around the tree for fertilizer. 9. Fuel production from the fuelwood plantation has been considerably low compared to what has been expected. The survey reveals that the average amount of fuel harvest out of the fuelwood plantation was 1,71 M/T per hectare. Expected or planned fuel production was fire M/T per hectare. The highest production turned out to be 10 M/T per hectare while the lowest 0.1 M/T. 10. The principal benefits of the fuelwood project would be: (a) production of forest fuel which would replace illegal cutting and gathering of timber and other forest products. (b) labor saving in collecting fuel. (c) creation of permanent timber producing forests as a secondary purpose of the fuelwood plantation projects, and consequent reduction of soil errosion and flood protection. (d) increase inseedling farmer's income and creation of employment opportunities for the labor intensive seedling farms. (e) beautification of mountains and villages, and institutional building at village level leading to self reliance. 11. Quantitative measurement of direct benefits a and b is attempted. There are no explicit markets for fuetwood rural area any more. However fuelwood, more specifically trimmed tree branches sometimes are bought and sold among the residents in a village. Price of the fuelwood is around 1,000 won per 60㎏,a loadful of “gike”(A-frame). It is assumed that full yield would be reached in eighth year and would equal 5 tons/ha. Yields would build up 0.5 ton in forth year, 1 tons in fifth year, 2 tons in sixth year, 4 tons in seventh year and there-after 5 tons/ha until 20th year. There will be no production until fourth year. During years 1 to 3, there would be a certain amount of grass and weeds produced but usually it is left on the site for fertilizer and value of this would be merely equal to the opporunity cost of labor maintaining the fuelwood plantation. 12. When there were no fuelwood plantations, a household had to spent average 41 days per annum to stock up 1 year fuel requirement during mostly winter time. With fuelwood plantation, a rural household spends about 7 days for a year to serve fuelwood plantation including forest product harvest. Value of time saving may be evaluated as an opportunity costs of labor. 75% of annual average wage rate for man and woman in 1977 was 1,500 Won/day. Labor saving value per ha of fuelwood plantation was estimated to be about 16 days when substracting the effect of 45% composition rate of briquette and agricultural residuals in fuel consumption. Savings of coal resources and agricultural residues did not occur in the survey as country to expected. 13. The cost per ha of plantation establishment is estimated to be around 112,216 Won. Materials, transport and overhead are evaluated at their financial costs. Supervision costs are valued at 4,233 Won/day which is skilled laborer’s wage rate in 1977. Village volunteer labor which comprises 57% of total cash valued establishment cost has been valued at 1,500 Won/day which is 75% of annual average farm wage rate in 1976. The volunteer labor cost is 63,214 Won/ha. 14. The maintenance costs of fuelwood plantation is composed of weeding brushing for the first 4 years and plantation patrol costs. This is valued at 3,047 Won. Production costs may be divided into labor cost for harvest and fertilizer costs. Labor cost is estimated at 2,417 Won per ha and fertilizer cost is 1,303 Won/ha. Therefore, the total production costs for fuel is 3,786 Won/ha. 15. For cost and benefit streams, the rate of return is estimated to be 18.8%. The benefit cost ratio was 2.29 and 1.81 when 12% and 15% discount rates were used respectively. When the fuel production was valued at opportunity cost of labor. 1,500 Won/day, IRR is estimated to be 19.78%. It was assumed that one man can harvest and carry (by A-frame)180㎏/day. The transport distance was assumed to be 1 km.

韓國 精神障碍의 疫學的 調査硏究(Ⅷ) : Generalized Anxiety Disorder 汎不安障碍

李定均,卞永贊 大韓神經精神醫學會 1987 신경정신의학 Vol.26 No.1

In order to study generalized anxiety disorder, this epidemiological survey was performed, using DIS-Ⅲ (Diagnostic Interview Schedule, version Ⅲ) Korean version by lay interviewers. Subjects were selected according to multistage cluster sampling mothod together with simple ramdom sampling and 2,865 respondents in Seoul and 1,439 in overall rural area completed the study. The results were as follows : 1) The lifetime prevalence rate was 3.40%. 2) The lifetime prevalence rate was nearly triplicated by point prevalence rate. 3) There was a tendency that prevalence rate became increased along with age and time period. 4) As for sex, prevalence rate was significantly higher in women than in men. 5) The mean age of onset of symptoms was 32.4 years. 6) The mean duration of symptoms was 74.1 weeks.

고려인삼의 주아 발달 경로에 대하여

정찬문,임흥빈,이이,정열영,전병록 충북대학교 연초연구소 2009 煙草硏究 Vol.22 No.-

본 시험은 인삼의 채종종자의 조직을 관찰하여 잠아의 실체를 조사하였고 묘삼의 잠아특성을 산지별로 조사하여 다경이 되는 잠아의 발달경로를 알아보았다. 그리고 묘삼을 본포에 이식하여 3년생을 채굴하여 4년생이 될 주아의 생성경로를 조사하였다. 1. 묘삼의 주아는 발아종자의 경근천이부에서 피층조직이 융기하여 돔(dome)형태의 원잠아 또는 측잠아가 형성된 후 이들 조직이 분화하여 발달하였다. 2. 묘삼의 단뇌는 90%가 원잠아에서 유래하였고 쌍뇌는 원잠아와 2%정도의 측잠아1개가 발달되어 형성되었으며 3뇌는 원잠아와 측잠아 2개가 발달하여 형성되었다. 3. 본포에서 2년생과 3년생은 주아가 단뇌로 형성되어 있어 2경개체가 발생하지 않으나 4년생은 3년생에서 발달한 쌍뇌 이상의 주아가 있어 2경개체이상이 관찰되는 최초의 연생이었다. 4. 4년생의 주아는 종자에서 형성된 원잠아, 측잠아와 2-3년생에서 뇌두부위에서 형성된 피층잠아에서 유래하는 것으로 고년생으로 갈수록 쌍뇌 또는 3뇌는 원잠아에 비해 피층잠아 유래의 주아가 많았다. We studied the substance of latent bud by surveying the embryo of harvested seed and developmental pathway of latent bud by analysing the characteristics of latent bud of local ginseng lines. We transplanted one year old ginseng seedlings in the field and harvested it out two years later. And then We investigated developmental pathway of the main bud which would be the shoot of ginseng in the fourth year. Main bud of seedling was formed from the region between root and shoot of germinating seed. Primary and axillary latent buds protruded in dome shape from cortex tissue and differentiated into main bud. Ninety percent of single main bud was derived from primary latent bud, twin main buds were derived from primary latent bud and one axillary bud, and triple main buds were derived from primary latent bud and two axillary latent buds. In the field, We could not find 2-stem plant from 2-3 years old plant, however, We found 2-stem plant from 4-year-o1d plant because twin main buds developed from 3-year-o1d plant. Therefore 2-stem plant was observed obviously from the plant at least 4 years old. Main buds of 4-year-old plant were formed from primary and axillary latent bud of seed and cortex latent bud of rhizome from 2-3 years old plant. In older plants, twin and triple main buds were derived more from cortex latent bud than primary latent bud.

우리나라 근대무용의 발전과정

정찬모,이미경 한국체육사학회 2002 체육사학회지 Vol.10 No.-

The purpose of this study was to review the development of Korean modern dance from its traditional dance to its creative dance. For this purpose, the transition or development from traditional dance to modern dance was examined, and thereby, concepts of the modern dance and its historical implications were reviewed longitudinally. In terms of historic and social backgrounds, the development of our modern dance for the period of 1895 ~ 1979 was featured by dividing it into four stages: initial period, growth period transitional period and developmental period. During the Japanese colonial period our traditional dance was promoted to theater dance, which helped to enhance people's awareness of our traditional dance. By 1926, the Japanese dancer Ishi Baku(石井漠) came Korea only introduce the Western dance to our dance community, and as a result, such world-renowned dancers as Choi Seung-hee and cJo Taek-won emerged. While Korea was emancipated from Japan and suffered for the Korean War, our dance community witnessed the efforts to recover the traditional dance with the vigorous cultural movement and search for our own dance aesthetics. After all in 1979, our dance community would witness a traditional dance festival conducive to creative dances. Summing up, the traditional dance was promoted around 1900 when it was presented on the stage, and thereby, many professional dancers began to be engaged in dance. On the other hand, the professional dancers pursued a modern art form, and thus, their social status was enhanced. Thus, in the history of our dance, the modern dame is very significant in that it linked the traditional dance with the creative one.

바이오안전성에 대한 세계적인 동향 : 유전자변형 생물체(LMO)를 중심으로

이이,정찬문,이학수,신주식 충북대학교 연초연구소 2006 煙草硏究 Vol.20 No.-

현대 분자생물학의 발달에 따른 유전자변형 생물체의 개발은 시간과 경제적으로 전통적인 육종의 한계를 많이 극복하고 있으며 세계적으로 유전자변형생물체의 개발이 빠른 속도로 진행되고 있다. 유전자의 변형에 따른 환경의 파괴, 인체에 대한 위해 가능성 때문에 바이오안전성의정서가 채택되는 등 세계적으로 바이오안전성에 대한 관심이 증가하고 있다. 바이오안전성은 유전자특성분석, 환경위해성평가, 인체위해성평가 등 3단계의 평가에 의해서 이루어지며 최종적으로 인체와 환경에 해를 끼칠 가능성이 있는 유전자변형생물체를 규제하기 위해서 이루어진다. 우리나라도 최근에 바이오안전성에 대한 관심이 증대되면서 바이오안전성 평가체계가 확립중이다. The development of molecular biology enabled us to overcome the restrictions of conventional breeding system and the number of genetically modified organisms are dramatically increasing. The possibility of the genetically modified organism's risk on human health and environment caused concerns on the biosafety. Biosafety test contains gene characteristics analysis, health safety test, and environmental risk test. The final aim of these tests is to prevent the commercialization of genetically modified organism which have possible risk on human health and environment. Biosafety evaluation system is being built in Korea.

기존의 곡면 분할 알고리듬 비교 연구

李玄燦,朱柄俊,洪忠成 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

Recently, designing and visualizing 3D objects become getting more important issues in related industrial fields due to new trends such as Virtual Design using CAD(Computer-Aided Design) systems and high-speeded internet. In this paper, we compare the existing surface subdivision algorithms. Subdivision algorithm is a 3D modeling technique that generates a very smooth surface through many times of refinement processes that split polygons of control mesh into several smaller polygons. We examine the methods of calculating new vertices and topological algorithms of three existing subdivision algorithms, Doo-Sabin, Catmull-Clark, and Loop subdivision scheme in detail, and compare them to find the differences, merits and demerits. In calculating new vertices, Doo-Sabin scheme is simpler than Catmull-Clark and Loop schemes. But in topological algorithm, Catmull-Clark and Loop schemes are simpler than Doo-Sabin scheme.