통계분석법을 이용한 영산강 유역의 수질평가

정희정 ( Hee Jeong Jeong ),허유정 ( Yu Jeong Huh ),이영재 ( Yeong Jae Lee ),김갑순 ( Kap Soon Kim ),유창석 ( Chang Seok Yoo ),임병진 ( Byung Jin Lim ) 한국물환경학회 ( 구 한국수질보전학회 ) 2010 공동 추계학술발표회 Vol.2010 No.-

Rotary type과 linear type 자동흡연 장치에 따른 담배연기 중 타르, 니코틴 및 일산화탄소의 함량 비교

정재훈,김영신,임흥빈,석영선,신주식,이학수 충북대학교 연초연구소 2004 煙草硏究 Vol.19 No.-

본 실험은 type별 흡연 장치의 담배 주류연 포집에 대한 차이를 비교하고자 주류연 중 일반적인 다량의 성분을 측정하였다. 1. 니코틴 함량은 대체로 linear-type 흡연 장치에서 높은 경향 이였으나 유의한 차이는 없었다. 2. 수분 함량은 두 가지 type 간에 유의한 차이는 없었다. 3. tar 함량은 저 농도에서 linear-type 보다 otary-type 흡연 장치가 높은 경향 이였으나 유의한 차이는 없었다. 4. 일산화탄소는 rotary-type과 linear-type 모두 유의한 차이는 없었다. 본 실험결과 ISO 표준 흡연 조건에서 담배 주류연의 tar, 니코틴, 일산화탄소 함량의 측정은 흡연 장치의 type별 통계적으로 유의한 차이는 없는 것으로 판단된다. This study was conducted to compare rotary-type with linear-type automatic smoking machine referred to ISO 3308 in the determination of tar, nicotine and CO in cigarette smoke. Sample were used with 4 kinds of domestic branded cigarettes(tar ; 1, 3, 6, 10 mg/cig) and CORESTA Monitor 4 cigarettes(tar ; 14 mg/cig). Tar and nicotine contents were analysed by gas-chromatograph methods in accordance with ISO 4387 and 10315-1. Determination of carbon monoxide in the vapour phase of cigarette smoke was meaured by NDIR method in ISO 8454. Sample preparation were performed in conditioning room at 22℃, 60 % for 48 hours according to ISO 3402. There was no significant difference between two smoking machine from 1 mg/cig to 14 mg/cig tar cigarettes, but, the contents of three components measured by rotary type showed higher tendency than those by linear type in the case of hight tar cigarettes. The results were the opposite in low tar cigarettes.

동절기 근권부 온도가 비모란 생장 및 품질에 미치는 영향

정명일,정봉남,김재영 한국화훼연구회 2002 화훼연구 Vol.10 No.1

접목선인장의 동계재배를 위하여 근권의 온도를 15, 20, 25, 30, 35℃로 조절한 처리구와 조절하지 않은 대조구를 두어 비모란 Sun, Pink품종을 재배하였다. 처리 6개월 후 구경, 생체중, 건물중에 있어서 Sun품종은 25℃, Pink품종은 20℃에서 가장 좋았다. 특히 비모란의 구경과 구중은 15℃ 처리와 온도처리를 하지 않은 대조구에서 낮은 경향을 보여 근권부 저온이 생육에 저해요인으로 작용하는 것으로 보였다. 대목으로 이용한 삼각주의 뿌리 생육은 25℃ 처리에서 생체중과 건물중이 높았고 15℃에서는 아주 불량하였으며, 뿌리의 활력은 20℃에서 높았다. 구색에 있어서는 Sun품종은 유의성이 인정되지 않았으며 Pink품종은 온도가 높을수록 황색화 되었다. 적색의 betacyanins 색소 함량은 온도가 높아질수록 증가하는 경향을 보였다. 상품의 생산율은 Sun품종은 25℃, Pink 품종은 20℃에서 높았으며 그 이상과 이하에서는 낮았다. 이상의 결과로 볼 때 정식초기에는 25℃로 관리하여 발근을 촉진시킨 후 출하기까지 20℃로 관리하면 생육을 촉진시킬 수 있으며 겨울철에도 정상적인 생산이 가능할 것으로 판단된다. Abstract. In order to observe the possibility of winter season production of G. mihanovichii cvs., Sun and Pink were cultivated under temperatures of 15, 20, 25, 30 and 35℃, and under conventional cultivation method for comparison. Increasement of the diameter, fresh and dry weight of globes was best at 25℃ in cv. Sun, and at 20℃ in cv. Pink. Especially, globe diameter and fresh weight were bad at 15℃ and in conventional cultivation method. From the results it was determined that low temperature around root-zone greatly affect the growth of globes. Root fresh and dry weight of Heoylocereus trigonus used for stock plants showed good at 25℃ and bad at 15℃, but its activity was highest at 20℃. Color did not show any statistical significance in various temperature, but 'Pink' showed tendency of turning yellow by increasing the temperature. Quality and productivity was good at 20℃ and 25℃, and was bad at below those temperature. From the results it was concluded that if G. mihanovichii were cultivated for rooting at 25℃ in early planting period and were maintained to activating growth at 20℃ until marketing time, regular production of G. mihanovichii in winter season would be possible.

인증기관 구성 및 운영정책 요구사항 분석

김영덕,정재수,최용락 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.1

This study purposes to analyze the configuration of CAs(Certification Authorities) and the operating policy of CAs for cross-trusted authentication services. The CA is an authority trusted by one or more users to create and assign certificates being used to user authentication in the network. In this paper, each country's law related to Electronic Commerce and the requirement of PKI(Public Key Infrastructure) components are analyzed, and the guideline to organize CA mechanism in the domestic is mentioned

고혈압과 당뇨병이 허혈성 뇌혈관질환의 위험인지로서의 Lipoprotein(a)에 미치는 영향

박정욱,박성경,이정욱,김영인,김용재,이광수,김범생 대한신경과학회 1996 대한신경과학회지 Vol.14 No.1

호텔기업간 전략적 제휴의 성과에 영향을 미치는 요인에 관한 연구

양정영,정노재 문화관광연구학회 2002 문화관광연구 Vol.4 No.4

In the age of globalization and limitless competition, strategic alliance is a necessary strategic tool for business survival and internationalization. Theoretical study empirical research have been written under the framework of hotel company, but mainly have focused on the motives and forms of strategic alliance. The purpose of this study examine the determinants of partnership and performance in the strategic alliances among hotel companies. The results of this paper were found that relation oriented factors, operation oriented factors, strategy oriented factors, structure oriented factors each have a significant positive influences on the performance of strategic alliance.

생물계면활성제를 이용한 중금속 및 유기물 오염 토양의 정화

홍석정,현재혁,김영철 한국공업화학회 2002 응용화학 Vol.6 No.1

A study on the soil remediation was performed by using a biosurfactant. The surfactant solutions were applied to the soil flushing of the artificially contaminated soil with copper ion, cadmium ion and phenol. The optimal concentration of the surfactant was determined by the lab.-scale column tests using the solutions of various concentrations. The characteristic behavior of the contaminant removal was studied and the efficiencies of the soil flushing were determined for the contaminants.

안동지역의 전통민속마을을 이용한 관광상품 개발에 관한 연구

양정영,이재만 문화관광연구학회 2003 문화관광연구 Vol.5 No.2

Traditional folk village has a great significance because it possesses cultural and touristic resources. However for its utilization as touristic resources existence of considerable obstacles must be recognized. What is most important for traditional cultural experience of the region is service to the visitors and attraction luring their re-visitation but currently general attitude is viewing the place merely as an object for sightseeing and such mentality should be transformed. At this juncture what is urgently demanded is transformation of residents’ mentality toward tourists. It is necessary to instill impression on noble style of traditional culture to visitors, providing allurement for revisiting and opportunity for tourists to experience traditional houses personally as touristic product. What is truly required for publicizing Andong is developing traditional touristic products by grafting concept of traditional cultural tourism to the place so that tourists can experience the heritage of traditional folk village and open their eyes to the charm of our unique culture.

곁순의 화학적 방제가 연초식물의 생장량에 미치는 영향

이재흥,석영선,신주식,정찬문 충북대학교 엽연초연구소 2001 煙草硏究 Vol.18 No.-

This study was carried out to compare the effects of suckercides - Fatty alcohol(FA), Maleic hydrazide(MH) and Butralin - on the sucker control and growing characters of flue-cured tobacco leaves. Among the three suckercides, Butralin was treated at three different times, one day before topping, topping day and one day after topping, and at two different concentration, 1/30 and 1/60 water solution. The results are summarized as follows. Suckercide treated plot showed higher growth and weight of upper leaves than not-treated plots did. MH treated plot decreased numbers, fresh weight and dry weight of suckers compared to the other treated plots, and made the leaves shape narrow. The effect of Butralin on sucker control was lower than that of MH, but higher than that of FA. The yields when treated Butralin decreased compared to the yields when treated MH. Though there were no significant differences of yields and growing characters of leaves among the plots of three concentrations and two times of treating Butralin, it is recommended to apply 1/60 water solution of Butralin at topping time.

OSP 투자지능화 시스템의 고찰

오구영,임미숙,정재우,조용환 충북대학교 컴퓨터 정보통신 연구소 2000 컴퓨터정보통신연구 Vol.8 No.1

본 논문은 OSP(Outside Plant) 투자지능화 시스템개발을 위해서 국내외에서 개발하여 사용하고 있는 선로투자공급 시스템들에 대하여 관심을 두고, 관련된 시스템들을 조사하여 각각의 시스템의 특징 및 구성에 대하여 분석하였다. 이러한 분석결과를 토대로 국내 통신 사업체에서 통신망 계획 및 분석을 위해 앞으로 개발하여야 할 선로투자공급 모형에 대한 기준을 제시한다. This paper analysed systems that are developed as relevant systems for OSP. We focused their distinction and composition of each system which are developed and used to interior and overseas. This result is able to propose the standard model of a Intelligent System for OSP model which have to develop system for plan and analysis of communication network to telecommunication operator.