A Basic Study on Leaf and Stem Production of Angelica acutiloba

Choi,Seong-Kyu,Yun,Kyeong-won,Chon,Sang-Uk,Lee,Jong-Ill,Seo,Young-Nam,Seo,Kyoung-Sun,Choi,Kyeong-Ju 한국자원식물학회 2004 Plant Resources Vol.7 No.3

This study was conducted to develop effective production system in greenhouse for leaves and stems of Angelica acutiloba by using connect pots in 2003 and 2004. Seed germination rate and plant biomass of Angelica acutiloba collected in 2004 were higher than those harvested in 2003. Germination rate of Angelica acutiloba seeds collected in 2003 was 10%, while germination rate of seeds collected in 2004 was above 90%. Especially, plant growth and yield of Angelica acutiloba grown in connect pots sized with 4×4×5cm(length×width×height) were the highest. These results indicate that leaf and stem production of Angelica acutiloba can be improved by using connect pots and optimizing seed collecting time in greenhouse.

會計政策論 序說

崔鍾序 釜山 大學校 經營 經濟 硏究所 1988 經營 經濟 硏究 Vol.7 No.1

간척지에서 옥수수 나방류 해충 3종의 발생소장

이휘종,최원영,김상열,서종호,황정동,오성환,정진교,김주일,구현나,김길하 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

Occurrence of three troublesome lepidopterous pests, Ostrinia furnacalis, Helicoverpa armigera and Pseudaletia separata in corn cultivation of the reclaimed land were recorded using sex pheromone traps from 2012 to 2014. In case of O. furnacalis adult, two generations were observed in a year and its occurrence pattern was very regular. The 1st generation showed the highest occurrence in late May-early June and the 2nd generation was in late July-early August. On the other hand, H. armigera occurred at least three times a year but its occurrence was somewhat irregular. H. armigera adult showed the highest occurrence in mid May, late June, early August, respectively in 2012 but their occurrence patterns of the 2nd and 3rd generations were varied in 2013 and 2014. In case of P. separata, a few number of adult were captured during the survey period, indicating few number of P. separata migrated from China. Based on the control effect of O. furnacalis by Etofenprox and Carbofuranin 2012, June 26 treatment showed the highest control rate with 96.8% for Etofenprox, 85.8% for Carbofuran, respectively. Late treatment at June 19 and June 26 significantly decreased the control rate of O. furnacalis and June 26 treatment showed the lowest control rate of 1.9% for Etofenprox. 18.1% for Carbofuran, respectively.

長期間에 걸친 集計利益의 情報價値 分析

崔鍾序 釜山 大學校 經營 經濟 硏究所 1994 經營 經濟 硏究 Vol.13 No.1

會計利益數値의 情報內容을 分析하는 傳統的인 Ball-Brown類의 연구에서는 흔히 利益變動變數에 의해 測定되는 非期待利益과 公示時點을 전후한 1년이내의 反應檢定期間동안의 非正常株式收益率 사이의 構斷面的 相關關係를 검증하는 방법을 취해왔다. 그러나 이러한 접근방법은 현재 적어도 다음과 같은 두가지의 한계를 露呈하고 있는 것으로 보인다. 첫째는 이익변동과 주식수익률간의 관계를 논리적으로 설명해주는 理論的 模型이 不在하다는 것이고, 둘째는 지금까지의 많은 실증연구에서 이익변동변수는 수익률에 대해 一貫性있게 低調한 설명력을 보여 왔다는 것이 그것이다. 본 연구에서는 이러한 두가지의 문제점을 解明함을 목적으로 하여 최근 Ohlson등에 의하여 제시되고 있는 利益水準模型의 多期間에 걸친 수익률 설명력을 理論的, 實證的으로 검토하였으며, 실증분석의 결과 이익정보의 유용성에 대한 전통적인 연구의 결과를 補充하는 증거를 얻을 수 있었다. 즉, 장기간에 걸쳐 집계된 이익수준변수는 단기간에 비해 주식수익률에 대한 向上된 설명력을 보여주었으며, 이익수준변수는 이익변동변수에 비해 일반적으로 수익률과의 상관관계가 더 큰 것으로 나타났다.

개에서 발생한 자궁축농증 1례

서수원,손정민,윤기영,최호정,박성준,이영원,정성목,신상태,조종기 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2006 動物醫科學硏究誌 Vol.14 No.-

A 12-year-old, female miniature pinscher dog with history of fever and vaginal discharge 3 days ago was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. A diagnosis of pyometra was made by survey of abdominal radiographs and ultrasonography. The uterus appeared as convoluted and tubular appearance filled with anechoic to hypoechoic fluid. Ovariohysterectomy was the choice of cervical patency. Medical therapy for pyometra may be appropriate in bitches that were of breeding age and that were not systemically ill. The surgery was fine. After 1 week, the dog was getting better.

스마트교육과 SNS를 활용한 체육수업 활성화 방안 연구

최종환, 서경원 忠北大學校 平生體育硏究所 2013 平生體育硏究所 論文集 Vol.25 No.-

This study aims to investigate educational uses through smart education and SNS and seek ways to incorporate them into physical education (PE) classes. Modern society has brought changes regarding communication, formation of relationships, and life styles due to information technology development and the wide spread of smartphones. In the center, there is Social Network Service (SNS) through which the uses and values are gradually increasing around the world. This social changes also brought about smart education in school education for the needs of diverse educational demand. Smart education redefined educational systems in terms of contents, methods, evaluation, environment, etc. by effectively utilizing it into school education because it overcomes the environmental and physical limitations using network resources based on information technology. It is changing educational paradigms in the 21st century which seeks to develop and foster students' abilities so that every student is able to study according to their level and become a global leader. The results of the study on ways to activate PE classes through smart education and SNS showed the following. First, smart education in PE classes is the challenge that needs to be applied in future educational methods. Second, smart education and SNS-based instructions introduced a new learning environment and broadened PE classes. Third, smart education and SNS-based instructions show some educational effects of developing social skills through students' academic achievement, satisfaction in classes, interest, self-esteem, and cooperative learning. Fourth, it is essential to develop a variety of contents to apply to PE classes. Fifth, it is necessary to educate teachers about smart education and the uses of SNS.

韓國上場企業들의 環境公示實態에 대한 實證分析

최종서,김성민 부산대학교 환경문제연구소 2000 環境硏究報 Vol.18 No.-

Surveys in a number of countries have shown a trend toward increased disclosure of environmentally responsible accounting information. They show, however, that not all companies disclose environmental information and those that do vary greatly with respect to the quantity and quality of the information provided. At present no well developed theory on social-environmental information disclosure exists. Unless environmental accounting constitutes part of corporations' information systems, we may not be able to acknowledge the real value of the natural resources we are using, or reflect environmentally sensitive information for decision making. In Korea, after Corporate Accounting Standard (CAS hereafter) was revised on March the 30th, 1996, most Korean companies that had not hitherto disclosed any environmental information began to report on environmental affairs. Revised CAS stipulates that information on the company's environmental standards and policies, safety and accident related matters, environment-related investments, consumption of resources and energy, and matters related to occurrence and treatment of by-products and scraps are recommended to be disclosed in the footnotes accompanying the financial statements(article 90). The purpose of this paper is three-fold : to evaluate the corporate environmental disclosure practice in terms of quality and quantity of the information being disclosed, to investigate the relationship between the level of disclosure and various socioeconomic characteristics of firms, and finally to search for the motivating factors underlying the corporate environmental disclosure in Korea. Ultimately, we hope that this article could contribute to improve environmental reporting practices on the part of business firms in particular and, thereby serve to enhance the spirit of environmental protectionism among Korean business society in general. To achieve the afore-mentioned purposes, the authors surveyed audited financial statement of 310 listed firms and analysed environmental disclosure data using content analysis. The research results obtained from the empirical analysis are summarized as follows : Korean companies show the greatest concern on the matters related to the occurrence and treatment of by-products and scraps. The larger-sized companies and those companies belonging to environmentally sensitive industries are more likely to disclose environmental information relative to control groups. There is no significant association, however, between the level of environmental disclosure and the leverage ratio and the profitability of the companies being investigated.

PAN 슬러리의 유변학적 거동 및 PAN 슬러리 기포탑에서 슬러리 입자의 축방향 분산

최상원,나종복,서호준 麗水水産大學校産業技術硏究所 1992 産業基術硏究所 論文集 Vol.1 No.-

Rheological parameters of PAN(polyasrylonitrile)-slurry such as shear modulus, relaxation time, structural factor, etc. have been determined. Axial concentration distribution and axial dispersion coefficient of slurry particles have been investigated in a PAN-slurry bubble column(0.10 m-ID x 1.53 m-height). Effects of gas velocity(0.03-0.11 m/s), apparent slurry viscosity ?? and concentration of slurry particles ?? on the axial concentration distribution and dispersion coefficient of slurry particles have been determined. Sedimentation-dispersion model has been employed to analyze the axial concentration distribution of slurry particles. The axial distribution of slurry particles became uniform with increases in gas velocity, apparent slurry viscosity and slurry particle concentration. The axial dispersion coefficient of slurry particles increased with increasing gas velocity, but it decreased with an increase in apparnet viscosity of slurry. By considering the relation between rheological properties and axial dispersion of slurry particles, we found the following correlation equation; ? ?

대기입자 포집에 의한 공기중 최소검출 방사능농도의 결정

최종서,이원근 경희대학교 환경연구소 1997 環境硏究 論文集 Vol.7 No.-

The role of atmospheric radionuclide monitoring system is to measure the airborne radionuclide released from the nuclear explosive test or nuclear facility. Determination of the MDC(Minimum Detectable Concentration)s of 13 important radionuclides is essential for effective operation of the atmospheric radionuclide monitoring system under the CTBT(Comprehensive Test Ban Treaty) requirement. The radon and thron progeny exert a significant effect in determining the MDCs. The optimum decay and counting times were estimated through a series of experiments on the MDC. It was shown from the experimental results that for long-lived radionuclides, the MDCs were decreased slowly by elapsing the decay time, whereas the MDCs of short-lived radionuclides were increased continuously. In addition, the MDCs of most radionuclides are shown to decrease exponentially as counting time increases. By considering these analysis results, the optimum time parameters which could be satisfied with the CTBT technical requirements were determined. As above results, the optimum decay and counting times were selected 22 hour and 18 hour, respectively.

새마을 主産團地의 營農實態 比較硏究

徐大振,李宗玉,鄭鉉承,崔元凱,姜鎬允 진주산업대학교 1981 論文集 Vol.19 No.-

The purpose of this study were to find the actual condition of the co-operative group farming in Korea, and to improve the low income Saemaul villages by the adoption of good points in co-operative Group farming. There were so many co-operative farmings in Korea, but all of them were not so successful, Eight co-operative group farmings were chosen to investigate for the above purposes. (Table 1). The tendency of agricultural income was not always true. First of all, Co-op Poultry farm did not follow the order of agricultural income. Because there was an excellent leader who had eliminated the circulation expenses in process of the purchase of feeds and the sale of eggs in common, Second, Seachiodong flower were devived into two parts the cultural flower and the sale flower. The cultural flower meant mainly producing flowers and the sale flower mainly selling flowers to downtown shops in Seoul. The income per householder of the cultual flower was less than that of the sale flower. Consequently, sucessful Co-operative Group farmings had an able leader, and performed production and sale more reasonablly.