Study on Leaf Production of Angelica acutiloba by Mulching with Polyethylene Film

Choi,Seong-Kyu,Yun,Kyeong-Won,Chon,Sang-Uk,Seo,Young-Nam,Seo,Kyoung-sun,Kwon,Byung-Sun 한국자원식물학회 2003 Plant Resources Vol.6 No.3

This study was conducted to produce effectively more leaves of Angelica acutiloba through year-round production system by using various mulching materials and polyethylene(PE) tunnel. Soil temperature by covering treatment was higher in PE mulching and PE tunnel than in rice straw mulching, especially showing the highest temperature in PE tunnel from April through May. Water content of soil was higher in PE mulching than in non-mulching. Leaf production of Angelica acutiloba through year-round production showed the highest in PE tunnel and root production in PE mulching. These results suggest that leaf production of Angelica acutiloba can be maximized through PE tunnel cultivation system.

Effect of Activated Charcoal on Growth of Zingiber mioga ROSC

Choi,Seong-Kyu,Yun,Kyeong-Won,Chon,Sang-Uk,Seo,Young-Nam,Seo,Kyoung-Sun,Kwon,Byung-Sun 한국자원식물학회 2004 Plant Resources Vol.7 No.2

Activate charcoal (AC) can be utilized as a soil conditioner in agricultural crop areas. This study was conducted to investigate the effect of AC on growth and yield of Zingiber mioga ROSC as affected by different amounts of AC. The results obtained are summarized as follows. Growth characteristics including plant height and leaf length were the highest when activated charcoal added with 10-30%, suggesting that optimum amount of activated charcoal was ranged from 10 to 30%. Growth and enlargement of the root were improved by 10% AC with higher rhizome length and weight.

한국인의 간과 콩팥조직 내 수은 함유량의 참고치

최병선,박영주,권일훈,홍연표,박정덕 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.2

This study was conducted to investigate the reference value of mercury (Hg) in liver and kidney of Korean population. The mercury concentration in 244 'sudden and unexpected death' autopsies (male: 180, female: 64) aged from 0 to87 years was analyzed. The concentration of mercury was measured by atomic absorption spec(Perkin -Elmer Model 5100) with mercury/hydride generating system (FIAS 400). The contents of mercury in liver and kidney fitted well the log-normal distribution rather than normal distribution. Geometric mean concentration of mercury in liver and kidney was 0.115 ㎍/g wet weight and 0.149 μg/g wet weight, respectively. Geometric mean concentration of mercury in female was higher than in male (p<0.01). The mercury content in liver and kidney increased with age up to the forties and slightly decreased there-after, The regression model of mercury deposit in liver and kidney by age was predicted as the following equation : Log KHg=-1.0576+0.0045·Age -0.0001·Age²+0.0873·Sex, Log KHg=-1.0576+0.0152·Age-0.0002·Age²+0.1935·Sex. The liver burden of mercury was estimated to be 158.3~161.3μg in male and 163.0-166.9 ㎍ in female. The kidney burden of mercury was estimated to be 42.0~42.9 ㎍ in male and 55.5 ∼57.1 μg in female.

A Study on Storage of a Major Herbal Medicine Material, Peucedani Radix

Choi,Seong-Kyu,Yun,Kyeong-Won,Kwon,Byung-Sun 한국자원식물학회 2002 Plant Resources Vol.5 No.2

To develop optimal storage method of root of Peucedani Radix, which has been grown as major cultural herbal medicine material, root of Peucedani Radix was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between packing materials but was significantly different between sealing conditions. Conclusively vacuum packing and complete sealing with polyethylene film appears to be optimal for storage of Peucedani Radix.

EC 통상정책의 결정체제 및 특징

최병선 서울대학교 국제지역원 1992 국제지역연구 Vol.1 No.1

1987년 단일 유럽법의 시행 이후 EC는 단일시장 형성의 차원을 넘어서서 정치적 통합체로 의 발돋움을 계속하고 있다. EC의 이러한 노력은 급변하는 국제정치경제질서에 EC가 보다 적극적으로 대응하기 위한 노력의 표현이기도 하지만 다른 한편으로 이러한 EC의 웅장한 시도는 앞으로의 세계 정치경제질서에 중대한 변화를 예고하는 것이기도 하다. 이 논문은 이와같이 급변하고 있는 EC의 정책 가운데 우리와 관련이 깊은 EC의 대외공동통상정책의 정책결정 메카니즘과 정책결정과정, 그 결과로 나타나는 EC의 대외공동통상정책의 특징을 파악하려는 목적을 가지고 있다. EC의 대외공동통상정책은 EC회원국 사이의 정치적 타협자 협상, 또한 GATT체제 하에서의 EC와 제3국 사이의 정치적 타협과 협상의 산물이라고 할 수 있다. 그 결과 EC의 통상정책은 앞으로도 상당기간 동안 보호주의적인 색채, 산업정책적 색채를 강하게 띠게 될 것으로 예상된다. 그러므로 EC의 통상정책에 대한 연구는 단지 통상정책의 차원에서만이 아니고 EC단일시장의 형성과정, 그것의 진전속도, 방향 및 구체적 내용, EC경쟁정책의 적용 강도, 산업정책 및 기술개발정책의 운용방향, 각종의 사회적 규제(환경, 소비자안전보호등)에 대한 정견 등 다각적 측면에서 접근해야 할 필요가 있다. 1 Since the enactment of the Single European Act in 1987 the EC has stepped up it unifying efforts toward even establishing a political union. Such a move not only represent the EC's aggressive response to the rapidly changing international political economy, but forebears a fundamental change in it. This article aims at analyzing the current state of the internal market and the process of integrating and harmonizing commercial policies among the EC countries with disparate political and economic interests. In particular, this paper will examine the current structure and the general patterns of decision-making in the EC, and then stress the characteristics of the EC's commercial policy which has to be made in such process and the complicated decision-making structure. The EC's commercial policy is in essence the product of political wheeling and dealin both among the 12 member countries and between the EC and the numerous third countries. As a result, the EC's trade policy tends to be protectionistic and it will be increasingly. so in the future. Of course, its strength will depend on the successful completion of the Uruguay Round trade negotiations. Nonetheless, the EC's commercial policy tends to take on the feature of industrial policy, as member countries strive to maintain their traditional competitive position not only vita-a-vis the world but within the enlarged EC market. In view of the above, to conduct a proper analysis and to reach a more accurate understanding of the shaping of the EC's commercial policy in the future, it is necessary to focus not only on the EC's commercial policy ·itself, but more extensively on the process speed, direction and the contents of single market formation, and on the EC's competition policy, industrial policy, technology development policy and even various sorts of social regulatory policies (including environmental protection and consume. protection).

水球選手의 無酸素性 파워에 관한 硏究

최선용,이병두,이규성 韓國體育大學校附屬 體育科學硏究所 1990 韓國體育大學校附屬 體育科學硏究所論文集 Vol.9 No.1

The purpose of this study was to analyze the Anaerobic Power and Blood lactate concentration of Water-polo players (University and high school) in incremental load exercise. Subjects were selected from Korean National College of Physical Education and Seoul High School, whose careers had been 3 to 4 years in water-polo. The study utilized isokinetic muscle contraction test and Wingate test by Cybex-Ⅱ and computerized bicycle-ergometer. The results of the study were as follows : 1. Anaeroble powers of water-polo players of the university and high school respectively were 57.62±3.99%, 48.8±8.74% in Extensor and were 45.5±7.30, 39.0±6.96% in Flexor by Cybex-Ⅱ. 2. Anaerobic powers between two groups by wingate test were 57.62±3.99KPM/S in College group, 50.58±3.17PM/S in High School group with a mean power and 68.49±6.19KPM/S in College group, 61.32±3.64KPM/S in High School group with maximal state. But It was a statistically significant differences (p <.001) between two group. Fatigue index of water-polo players of College and high school saparately were 31.14±2.36% and 37.96±4.56%. These data showed a statistically significant difference (p<.001). 3.Maximal blood lactate concentrations between College players and High School Players were 8.6±0.73mmoles/1 and 7.4±1.88 mmoles/1, revealing a statistically significant difference (p< .01) in 3 minute recovery. And recovery ratio respectively are 64.4%, 62.9% in not statistically significant difference at 10 minute of recovery. 4. Correlation coefficients between endurance ratio of extensor, flexor and maximal blood lactate respectively showed 0.872, 0.804 for water-polo player of univ. and high school. Between means, maximal values of wingate test and maximal blood lactate are 0.849, 0.860.

유절기 조기 상실 후 공간 상실

최병재,한연선,김성오,이종갑 大韓小兒齒科學會 2002 大韓小兒齒科學會誌 Vol.29 No.3

유치에서의 조기 상실은 부위에 따라 주된 원인이 다르다. 구치부의 조기 상실은 주로 치아우식증에 의해 일어나지만, 전치부에서 나타나는 조기 상실의 대부분은 유아가 서고 걷는 것을 배울 시기에 외상을 받아 유발되며, 다발성 우식증 등에 의해서도 일어날 수 있다. 유치의 조기 상실시 치열궁 길이 감소가 나타날 경우에는 계승 영구치의 맹출을 방해하여 영구치의 총생, 매복 및 치열궁 비대칭 등을 유발할 수 있으므로, 공간 유지에 대한 고려가 필요하다. 유구치가 조기 상실된 경우에는 인접치아의 근심 또는 원심 이동으로 공간 상실이 유발되므로, 공간유지장치의 장착이 필수적이다. 그러나, 유절치의 경우에 있어서는 치아간의 접촉이 긴밀하거나 총생이 있는 유치열이 경우와 유견치의 맹출 전에 유절치가 상실된 경우에는 공간 상실이 일어날 수 있으나, 그 이외에 치간 공간이 있는 유치열이 경우, 유견치의 맹출 후에 유절치가 상실된 경우에서는 공간의 상실이 거의 없는 것으로 알려져 있다. 따라서 유절치 조기 상실 시에는 주로 공간유지 목적보다는 심미, 발음장애, 치아결손부분으로의 혀내밀기 등의 구강습관 방지 등의 목적으로 장치의 장착이 권장되어져 왔으며, 유절치 조기 상실시 공간 상실 문제에 대한 증례보고 또한 많지 않다. 본 증례들은 연세대학교 치과대학병원 소아치과에 내원한 환자에게서 유절치의 조기 발거로 인해 장기적 관찰 결과 공간 상실이 유발되었기에 이를 통하여 유절치 조기 상실시 공간 상실 가능성에 대해 보고하고자 한다. The primary cause of missing teeth vary depending on the region. The loss of posterior teeth is mainly due to dental caries, whereas that of the anterior teeth occur primarily due to trauma at the age of standing and walk-ing and secondarily from the rampant dental caries. Particularly, reduction of the arch length in the cases of premature loss of primary teeth may compromise the eruption of succedaneous permanent teeth. This may result in crowding and impaction of the permanent teeth, and asymmetry of arch, thus a careful consideration for space maintenance should be made in such cases. Space maintainer is required in the case of premature loss of primary posterior teeth, because space loss result from the approximate and centrifugal movement of the neighboring teeth. Generally, in the case of primary in-cisor, space loss occurs when 1) tooth contact is relevant, 2) crowding in primary dentition is present, and 3) a primary incisor is lost before the eruption of primary canine. Contrarily, in the case of primary dentition with in-terdental space, space loss will not be observed, mostly when a primary incisor is lost after the eruption of pri-mary canine. Thus, using a space maintainer in cases of premature loss of primary incisor has been introduced primarily not for the purpose of space maintaining but for an aesthetic purpose, prevention of parafunctional oral habits such as tongue thrust, and of pronunciation. Additionally, few case studies have been reported of space loss in cases of premature loss of primary incisor. This study is to report cases of the space loss following the premature loss of primary incisors observed in chil-dren.

전남지역 고등학생의 통일의식에 관한 조사연구

최영철,손병선 순천대학교 과학교육연구소 2001 科學과 敎育 Vol.9 No.-

The aim of this paper is to make a useful materials in forming the right view of unification of high school students, and to suggest the ways of the education of unification of them by looking into the consciousness of korean unification of high school students. This paper examined the consciousness on the peace in Korea, the democratic citizenship, the status of understanding of North Korea, and the national community. Using data collected in 2001, this paper finds the followings: First, viewing on the peace in Korean peninsula, most of students(76.6%) answered to want the peaceful coexistence of North and South. In addition, most of students wanted the gradual and peaceful unification and objected the unification by military force or by any other coercive methods. Second, however, the concern on national unification was very low. Only 42 percent of boy students had the concern about unification, while that of girl students was 30 percent. Therefore we can conclude that boy students have more positive and progressive views on the unification problem. Third, 63.5 percent of students think that the education of unification and on North Korea is objective and fair. This response may be caused by historical event like North-South summit held on June 15, 2000. Fourth, low percent of students(32%) answered that the most necessary work in reestablish national community between North and South is the exchange of people and resources. We can infer that the unification education can be improved as the following ways. First, the students should be taught to have more concern on unification. Second, the education of unification have to focus on understanding the circumstances of North and South Korea objectively. Third, the education of unification should be done to establish the consciousness of the national community.

프리다 칼로의 회화에 나타난 부정적 아니무스에 관한 연구

최병길,신혜순 원광대학교 대학원 2008 論文集 Vol.40 No.-

Among the works of artists are those which touch our hearts without any particular reasons. It can be said that Frida Kahlo works belong to them. Why are our hearts touched by her works? It is, perhaps, because our unconsciousness is influenced by some elements inherent in them. What, then, is the unconsciousness? According to Carl Gustav lung, 'the unconsciousness is the depths of our minds that we all possess, but do not yet know of.' Are the unknown depths all understandable? To some extent, our experiences might render them so. Yet it is impossible to explain or to understand every aspect of them. In his studies of the unconsciousness explored by Sigmund Freud, lung maintains that the unconsciousness-that is, a sphere of our minds that we are unconscious of-comes from individuals' life experiences. He also maintains that the individual unconsciousness exists which is connected with each individual's own life, and so do basic and universal elements, in a deeper depth, which every man has, regardless of the differences of culture, race, the spirit of the times, or geographical condition. lung calls the depth consisting of these elements the collective unconsciousness. The individual unconsciousness is what matters to the individual life, whereas the collective unconsciousness is the sum total and accumulation of what mankind have repeatedly experienced throughout their history. Thus, lung thinks that the collective unconsciousness, a potential energy far anterior to the individual life, is bestowed upon human beings at the time when they are brought into the world. The collective unconsciousness is the root of the mind, and is like a seed in which lies the possibility of every creation and destruction. lung names many transcendental conditions with this possibility the archetype. In his observations of people's dreams and fantasies, Jung has discovered a mythical element which is repeated, in the same way, in the dreams and fantasies of people of different races and of various cultural and religious backgrounds. He has found that not only does this element appear in patients' experiences of their diseases-like in their fantasies, delusions or abnormal actions, in healthy people's dreams, and in thoughts of primitive men or children, but also it appears in dogmas or religious manners of higher religions, in the works of poets and artists, and in folk beliefs (Buyoung Lee, 『Analytic psychology』, Seoul Iljogak, 1978/1995, pp. 41-112). When prior conditions for the types of actions, which are all possessed by ancient and modern people as well as Western, Eastern and African people, are observed with the images that we can recognize, we call them archetypal images, which are found in dreams, folktales, myths, religious phenomena, spirits and works of artists, pathological phenomena, and so on. From studying the meaning of the archetypal images, we are able to infer the basic conditions for human actions behind it. It can safely be said that Frida Kahlo has transformed into her works all the things that have confronted her. Probably, in them lie the aspects of the collective unconsciousness including those of the individual unconsciousness. It seems that, as her life suggests, Frida Kahlo, without evading any hardships in her life, has expressed in her works all the things on which she has worked. This study aims at understanding what her works have shown from the viewpoint of analytic psychology.

평균 유효 세율의 결정 요인에 관한 연구

宣炳完,崔康得 全北大學校 1994 論文集 Vol.38 No.-

A number of empirical studies have used effective tax rate(ETR) measures calculated from financial statement information to examine the relations between taxes, firm decisions, and firm characteristics. Studies using the average effective tax rate to measure corporate tax (dis) advantage have played a critical role in tax legislation. Recent research, however, has questioned the effectiveness of the ETR for this purpose. Previous research on corporate ETRs identified three important findings : (1)ETRs vary across firms(industries), (2) ETRs change over time, and (3) variances of ETRs differ across industries. These findings were explained solely in terms of cross-sectional and intertemporal differences in tax preferences. All other factors were implicitly assumed to be unimportant. This paper challenged the existing explanation by deriving the ETR as a function of the marginal tax rate and two variables : tax preferences and (pre-tax accounting)income. The model demonstrated how changes in the ETR can occur under two alternative assumptions about the relationship between tax preferences and income. Specifically, when tax preferences and income are perfectly correlated, the model showed that changes in the ETR are caused solely by changes in tax preferences. In the absence of perfect correlation, however, the model indicated that both tax preferences and income are capable of causing the ETR to change.